diff options
Diffstat (limited to 'tools/include')
43 files changed, 1653 insertions, 1189 deletions
diff --git a/tools/include/linux/btf_ids.h b/tools/include/linux/btf_ids.h index 71e54b1e3796..2f882d5cb30f 100644 --- a/tools/include/linux/btf_ids.h +++ b/tools/include/linux/btf_ids.h @@ -38,7 +38,7 @@ asm( \ ____BTF_ID(symbol) #define __ID(prefix) \ - __PASTE(prefix, __COUNTER__) + __PASTE(__PASTE(prefix, __COUNTER__), __LINE__) /* * The BTF_ID defines unique symbol for each ID pointing diff --git a/tools/include/linux/compiler.h b/tools/include/linux/compiler.h index 9d36c8ce1fe7..1684216e826a 100644 --- a/tools/include/linux/compiler.h +++ b/tools/include/linux/compiler.h @@ -42,6 +42,18 @@ # define __always_inline inline __attribute__((always_inline)) #endif +#ifndef __always_unused +#define __always_unused __attribute__((__unused__)) +#endif + +#ifndef __noreturn +#define __noreturn __attribute__((__noreturn__)) +#endif + +#ifndef unreachable +#define unreachable() __builtin_unreachable() +#endif + #ifndef noinline #define noinline #endif @@ -190,4 +202,10 @@ static __always_inline void __write_once_size(volatile void *p, void *res, int s #define ___PASTE(a, b) a##b #define __PASTE(a, b) ___PASTE(a, b) +#ifndef OPTIMIZER_HIDE_VAR +/* Make the optimizer believe the variable can be manipulated arbitrarily. */ +#define OPTIMIZER_HIDE_VAR(var) \ + __asm__ ("" : "=r" (var) : "0" (var)) +#endif + #endif /* _TOOLS_LINUX_COMPILER_H */ diff --git a/tools/include/linux/mm.h b/tools/include/linux/mm.h index a03d9bba5151..f3c82ab5b14c 100644 --- a/tools/include/linux/mm.h +++ b/tools/include/linux/mm.h @@ -11,8 +11,6 @@ #define PHYS_ADDR_MAX (~(phys_addr_t)0) -#define __ALIGN_KERNEL(x, a) __ALIGN_KERNEL_MASK(x, (typeof(x))(a) - 1) -#define __ALIGN_KERNEL_MASK(x, mask) (((x) + (mask)) & ~(mask)) #define ALIGN(x, a) __ALIGN_KERNEL((x), (a)) #define ALIGN_DOWN(x, a) __ALIGN_KERNEL((x) - ((a) - 1), (a)) @@ -29,7 +27,7 @@ static inline void *phys_to_virt(unsigned long address) return __va(address); } -void reserve_bootmem_region(phys_addr_t start, phys_addr_t end); +void reserve_bootmem_region(phys_addr_t start, phys_addr_t end, int nid); static inline void totalram_pages_inc(void) { diff --git a/tools/include/linux/seq_file.h b/tools/include/linux/seq_file.h index 102fd9217f1f..f6bc226af0c1 100644 --- a/tools/include/linux/seq_file.h +++ b/tools/include/linux/seq_file.h @@ -1,4 +1,6 @@ #ifndef _TOOLS_INCLUDE_LINUX_SEQ_FILE_H #define _TOOLS_INCLUDE_LINUX_SEQ_FILE_H +struct seq_file; + #endif /* _TOOLS_INCLUDE_LINUX_SEQ_FILE_H */ diff --git a/tools/include/nolibc/Makefile b/tools/include/nolibc/Makefile index 9839feafd38a..909b6eb500fe 100644 --- a/tools/include/nolibc/Makefile +++ b/tools/include/nolibc/Makefile @@ -25,8 +25,24 @@ endif nolibc_arch := $(patsubst arm64,aarch64,$(ARCH)) arch_file := arch-$(nolibc_arch).h -all_files := ctype.h errno.h nolibc.h signal.h stackprotector.h std.h stdint.h \ - stdio.h stdlib.h string.h sys.h time.h types.h unistd.h +all_files := \ + compiler.h \ + crt.h \ + ctype.h \ + errno.h \ + nolibc.h \ + signal.h \ + stackprotector.h \ + std.h \ + stdint.h \ + stdlib.h \ + string.h \ + sys.h \ + time.h \ + types.h \ + unistd.h \ + stdio.h \ + # install all headers needed to support a bare-metal compiler all: headers diff --git a/tools/include/nolibc/arch-aarch64.h b/tools/include/nolibc/arch-aarch64.h index 383baddef701..6c33c46848e3 100644 --- a/tools/include/nolibc/arch-aarch64.h +++ b/tools/include/nolibc/arch-aarch64.h @@ -7,33 +7,8 @@ #ifndef _NOLIBC_ARCH_AARCH64_H #define _NOLIBC_ARCH_AARCH64_H -/* The struct returned by the newfstatat() syscall. Differs slightly from the - * x86_64's stat one by field ordering, so be careful. - */ -struct sys_stat_struct { - unsigned long st_dev; - unsigned long st_ino; - unsigned int st_mode; - unsigned int st_nlink; - unsigned int st_uid; - unsigned int st_gid; - - unsigned long st_rdev; - unsigned long __pad1; - long st_size; - int st_blksize; - int __pad2; - - long st_blocks; - long st_atime; - unsigned long st_atime_nsec; - long st_mtime; - - unsigned long st_mtime_nsec; - long st_ctime; - unsigned long st_ctime_nsec; - unsigned int __unused[2]; -}; +#include "compiler.h" +#include "crt.h" /* Syscalls for AARCH64 : * - registers are 64-bit @@ -54,8 +29,8 @@ struct sys_stat_struct { ({ \ register long _num __asm__ ("x8") = (num); \ register long _arg1 __asm__ ("x0"); \ - \ - __asm__ volatile ( \ + \ + __asm__ volatile ( \ "svc #0\n" \ : "=r"(_arg1) \ : "r"(_num) \ @@ -68,8 +43,8 @@ struct sys_stat_struct { ({ \ register long _num __asm__ ("x8") = (num); \ register long _arg1 __asm__ ("x0") = (long)(arg1); \ - \ - __asm__ volatile ( \ + \ + __asm__ volatile ( \ "svc #0\n" \ : "=r"(_arg1) \ : "r"(_arg1), \ @@ -84,8 +59,8 @@ struct sys_stat_struct { register long _num __asm__ ("x8") = (num); \ register long _arg1 __asm__ ("x0") = (long)(arg1); \ register long _arg2 __asm__ ("x1") = (long)(arg2); \ - \ - __asm__ volatile ( \ + \ + __asm__ volatile ( \ "svc #0\n" \ : "=r"(_arg1) \ : "r"(_arg1), "r"(_arg2), \ @@ -101,8 +76,8 @@ struct sys_stat_struct { register long _arg1 __asm__ ("x0") = (long)(arg1); \ register long _arg2 __asm__ ("x1") = (long)(arg2); \ register long _arg3 __asm__ ("x2") = (long)(arg3); \ - \ - __asm__ volatile ( \ + \ + __asm__ volatile ( \ "svc #0\n" \ : "=r"(_arg1) \ : "r"(_arg1), "r"(_arg2), "r"(_arg3), \ @@ -119,8 +94,8 @@ struct sys_stat_struct { register long _arg2 __asm__ ("x1") = (long)(arg2); \ register long _arg3 __asm__ ("x2") = (long)(arg3); \ register long _arg4 __asm__ ("x3") = (long)(arg4); \ - \ - __asm__ volatile ( \ + \ + __asm__ volatile ( \ "svc #0\n" \ : "=r"(_arg1) \ : "r"(_arg1), "r"(_arg2), "r"(_arg3), "r"(_arg4), \ @@ -138,8 +113,8 @@ struct sys_stat_struct { register long _arg3 __asm__ ("x2") = (long)(arg3); \ register long _arg4 __asm__ ("x3") = (long)(arg4); \ register long _arg5 __asm__ ("x4") = (long)(arg5); \ - \ - __asm__ volatile ( \ + \ + __asm__ volatile ( \ "svc #0\n" \ : "=r" (_arg1) \ : "r"(_arg1), "r"(_arg2), "r"(_arg3), "r"(_arg4), "r"(_arg5), \ @@ -158,8 +133,8 @@ struct sys_stat_struct { register long _arg4 __asm__ ("x3") = (long)(arg4); \ register long _arg5 __asm__ ("x4") = (long)(arg5); \ register long _arg6 __asm__ ("x5") = (long)(arg6); \ - \ - __asm__ volatile ( \ + \ + __asm__ volatile ( \ "svc #0\n" \ : "=r" (_arg1) \ : "r"(_arg1), "r"(_arg2), "r"(_arg3), "r"(_arg4), "r"(_arg5), \ @@ -169,31 +144,14 @@ struct sys_stat_struct { _arg1; \ }) -char **environ __attribute__((weak)); -const unsigned long *_auxv __attribute__((weak)); - /* startup code */ -void __attribute__((weak,noreturn,optimize("omit-frame-pointer"))) _start(void) +void __attribute__((weak, noreturn, optimize("Os", "omit-frame-pointer"))) __no_stack_protector _start(void) { __asm__ volatile ( - "ldr x0, [sp]\n" // argc (x0) was in the stack - "add x1, sp, 8\n" // argv (x1) = sp - "lsl x2, x0, 3\n" // envp (x2) = 8*argc ... - "add x2, x2, 8\n" // + 8 (skip null) - "add x2, x2, x1\n" // + argv - "adrp x3, environ\n" // x3 = &environ (high bits) - "str x2, [x3, #:lo12:environ]\n" // store envp into environ - "mov x4, x2\n" // search for auxv (follows NULL after last env) - "0:\n" - "ldr x5, [x4], 8\n" // x5 = *x4; x4 += 8 - "cbnz x5, 0b\n" // and stop at NULL after last env - "adrp x3, _auxv\n" // x3 = &_auxv (high bits) - "str x4, [x3, #:lo12:_auxv]\n" // store x4 into _auxv - "and sp, x1, -16\n" // sp must be 16-byte aligned in the callee - "bl main\n" // main() returns the status code, we'll exit with it. - "mov x8, 93\n" // NR_exit == 93 - "svc #0\n" + "mov x0, sp\n" /* save stack pointer to x0, as arg1 of _start_c */ + "and sp, x0, -16\n" /* sp must be 16-byte aligned in the callee */ + "bl _start_c\n" /* transfer to c runtime */ ); __builtin_unreachable(); } -#endif // _NOLIBC_ARCH_AARCH64_H +#endif /* _NOLIBC_ARCH_AARCH64_H */ diff --git a/tools/include/nolibc/arch-arm.h b/tools/include/nolibc/arch-arm.h index 42499f23e73c..cae4afa7c1c7 100644 --- a/tools/include/nolibc/arch-arm.h +++ b/tools/include/nolibc/arch-arm.h @@ -7,42 +7,8 @@ #ifndef _NOLIBC_ARCH_ARM_H #define _NOLIBC_ARCH_ARM_H -/* The struct returned by the stat() syscall, 32-bit only, the syscall returns - * exactly 56 bytes (stops before the unused array). In big endian, the format - * differs as devices are returned as short only. - */ -struct sys_stat_struct { -#if defined(__ARMEB__) - unsigned short st_dev; - unsigned short __pad1; -#else - unsigned long st_dev; -#endif - unsigned long st_ino; - unsigned short st_mode; - unsigned short st_nlink; - unsigned short st_uid; - unsigned short st_gid; - -#if defined(__ARMEB__) - unsigned short st_rdev; - unsigned short __pad2; -#else - unsigned long st_rdev; -#endif - unsigned long st_size; - unsigned long st_blksize; - unsigned long st_blocks; - - unsigned long st_atime; - unsigned long st_atime_nsec; - unsigned long st_mtime; - unsigned long st_mtime_nsec; - - unsigned long st_ctime; - unsigned long st_ctime_nsec; - unsigned long __unused[2]; -}; +#include "compiler.h" +#include "crt.h" /* Syscalls for ARM in ARM or Thumb modes : * - registers are 32-bit @@ -88,8 +54,8 @@ struct sys_stat_struct { ({ \ register long _num __asm__(_NOLIBC_SYSCALL_REG) = (num); \ register long _arg1 __asm__ ("r0"); \ - \ - __asm__ volatile ( \ + \ + __asm__ volatile ( \ _NOLIBC_THUMB_SET_R7 \ "svc #0\n" \ _NOLIBC_THUMB_RESTORE_R7 \ @@ -105,8 +71,8 @@ struct sys_stat_struct { ({ \ register long _num __asm__(_NOLIBC_SYSCALL_REG) = (num); \ register long _arg1 __asm__ ("r0") = (long)(arg1); \ - \ - __asm__ volatile ( \ + \ + __asm__ volatile ( \ _NOLIBC_THUMB_SET_R7 \ "svc #0\n" \ _NOLIBC_THUMB_RESTORE_R7 \ @@ -123,8 +89,8 @@ struct sys_stat_struct { register long _num __asm__(_NOLIBC_SYSCALL_REG) = (num); \ register long _arg1 __asm__ ("r0") = (long)(arg1); \ register long _arg2 __asm__ ("r1") = (long)(arg2); \ - \ - __asm__ volatile ( \ + \ + __asm__ volatile ( \ _NOLIBC_THUMB_SET_R7 \ "svc #0\n" \ _NOLIBC_THUMB_RESTORE_R7 \ @@ -142,8 +108,8 @@ struct sys_stat_struct { register long _arg1 __asm__ ("r0") = (long)(arg1); \ register long _arg2 __asm__ ("r1") = (long)(arg2); \ register long _arg3 __asm__ ("r2") = (long)(arg3); \ - \ - __asm__ volatile ( \ + \ + __asm__ volatile ( \ _NOLIBC_THUMB_SET_R7 \ "svc #0\n" \ _NOLIBC_THUMB_RESTORE_R7 \ @@ -162,8 +128,8 @@ struct sys_stat_struct { register long _arg2 __asm__ ("r1") = (long)(arg2); \ register long _arg3 __asm__ ("r2") = (long)(arg3); \ register long _arg4 __asm__ ("r3") = (long)(arg4); \ - \ - __asm__ volatile ( \ + \ + __asm__ volatile ( \ _NOLIBC_THUMB_SET_R7 \ "svc #0\n" \ _NOLIBC_THUMB_RESTORE_R7 \ @@ -183,8 +149,8 @@ struct sys_stat_struct { register long _arg3 __asm__ ("r2") = (long)(arg3); \ register long _arg4 __asm__ ("r3") = (long)(arg4); \ register long _arg5 __asm__ ("r4") = (long)(arg5); \ - \ - __asm__ volatile ( \ + \ + __asm__ volatile ( \ _NOLIBC_THUMB_SET_R7 \ "svc #0\n" \ _NOLIBC_THUMB_RESTORE_R7 \ @@ -196,47 +162,38 @@ struct sys_stat_struct { _arg1; \ }) -char **environ __attribute__((weak)); -const unsigned long *_auxv __attribute__((weak)); +#define my_syscall6(num, arg1, arg2, arg3, arg4, arg5, arg6) \ +({ \ + register long _num __asm__(_NOLIBC_SYSCALL_REG) = (num); \ + register long _arg1 __asm__ ("r0") = (long)(arg1); \ + register long _arg2 __asm__ ("r1") = (long)(arg2); \ + register long _arg3 __asm__ ("r2") = (long)(arg3); \ + register long _arg4 __asm__ ("r3") = (long)(arg4); \ + register long _arg5 __asm__ ("r4") = (long)(arg5); \ + register long _arg6 __asm__ ("r5") = (long)(arg6); \ + \ + __asm__ volatile ( \ + _NOLIBC_THUMB_SET_R7 \ + "svc #0\n" \ + _NOLIBC_THUMB_RESTORE_R7 \ + : "=r"(_arg1), "=r" (_num) \ + : "r"(_arg1), "r"(_arg2), "r"(_arg3), "r"(_arg4), "r"(_arg5), \ + "r"(_arg6), "r"(_num) \ + : "memory", "cc", "lr" \ + ); \ + _arg1; \ +}) /* startup code */ -void __attribute__((weak,noreturn,optimize("omit-frame-pointer"))) _start(void) +void __attribute__((weak, noreturn, optimize("Os", "omit-frame-pointer"))) __no_stack_protector _start(void) { __asm__ volatile ( - "pop {%r0}\n" // argc was in the stack - "mov %r1, %sp\n" // argv = sp - - "add %r2, %r0, $1\n" // envp = (argc + 1) ... - "lsl %r2, %r2, $2\n" // * 4 ... - "add %r2, %r2, %r1\n" // + argv - "ldr %r3, 1f\n" // r3 = &environ (see below) - "str %r2, [r3]\n" // store envp into environ - - "mov r4, r2\n" // search for auxv (follows NULL after last env) - "0:\n" - "mov r5, r4\n" // r5 = r4 - "add r4, r4, #4\n" // r4 += 4 - "ldr r5,[r5]\n" // r5 = *r5 = *(r4-4) - "cmp r5, #0\n" // and stop at NULL after last env - "bne 0b\n" - "ldr %r3, 2f\n" // r3 = &_auxv (low bits) - "str r4, [r3]\n" // store r4 into _auxv - - "mov %r3, $8\n" // AAPCS : sp must be 8-byte aligned in the - "neg %r3, %r3\n" // callee, and bl doesn't push (lr=pc) - "and %r3, %r3, %r1\n" // so we do sp = r1(=sp) & r3(=-8); - "mov %sp, %r3\n" // - - "bl main\n" // main() returns the status code, we'll exit with it. - "movs r7, $1\n" // NR_exit == 1 - "svc $0x00\n" - ".align 2\n" // below are the pointers to a few variables - "1:\n" - ".word environ\n" - "2:\n" - ".word _auxv\n" + "mov %r0, sp\n" /* save stack pointer to %r0, as arg1 of _start_c */ + "and ip, %r0, #-8\n" /* sp must be 8-byte aligned in the callee */ + "mov sp, ip\n" + "bl _start_c\n" /* transfer to c runtime */ ); __builtin_unreachable(); } -#endif // _NOLIBC_ARCH_ARM_H +#endif /* _NOLIBC_ARCH_ARM_H */ diff --git a/tools/include/nolibc/arch-i386.h b/tools/include/nolibc/arch-i386.h index 2d98d78fd3f3..64415b9fac77 100644 --- a/tools/include/nolibc/arch-i386.h +++ b/tools/include/nolibc/arch-i386.h @@ -7,31 +7,8 @@ #ifndef _NOLIBC_ARCH_I386_H #define _NOLIBC_ARCH_I386_H -/* The struct returned by the stat() syscall, 32-bit only, the syscall returns - * exactly 56 bytes (stops before the unused array). - */ -struct sys_stat_struct { - unsigned long st_dev; - unsigned long st_ino; - unsigned short st_mode; - unsigned short st_nlink; - unsigned short st_uid; - unsigned short st_gid; - - unsigned long st_rdev; - unsigned long st_size; - unsigned long st_blksize; - unsigned long st_blocks; - - unsigned long st_atime; - unsigned long st_atime_nsec; - unsigned long st_mtime; - unsigned long st_mtime_nsec; - - unsigned long st_ctime; - unsigned long st_ctime_nsec; - unsigned long __unused[2]; -}; +#include "compiler.h" +#include "crt.h" /* Syscalls for i386 : * - mostly similar to x86_64 @@ -55,8 +32,8 @@ struct sys_stat_struct { ({ \ long _ret; \ register long _num __asm__ ("eax") = (num); \ - \ - __asm__ volatile ( \ + \ + __asm__ volatile ( \ "int $0x80\n" \ : "=a" (_ret) \ : "0"(_num) \ @@ -70,8 +47,8 @@ struct sys_stat_struct { long _ret; \ register long _num __asm__ ("eax") = (num); \ register long _arg1 __asm__ ("ebx") = (long)(arg1); \ - \ - __asm__ volatile ( \ + \ + __asm__ volatile ( \ "int $0x80\n" \ : "=a" (_ret) \ : "r"(_arg1), \ @@ -87,8 +64,8 @@ struct sys_stat_struct { register long _num __asm__ ("eax") = (num); \ register long _arg1 __asm__ ("ebx") = (long)(arg1); \ register long _arg2 __asm__ ("ecx") = (long)(arg2); \ - \ - __asm__ volatile ( \ + \ + __asm__ volatile ( \ "int $0x80\n" \ : "=a" (_ret) \ : "r"(_arg1), "r"(_arg2), \ @@ -105,8 +82,8 @@ struct sys_stat_struct { register long _arg1 __asm__ ("ebx") = (long)(arg1); \ register long _arg2 __asm__ ("ecx") = (long)(arg2); \ register long _arg3 __asm__ ("edx") = (long)(arg3); \ - \ - __asm__ volatile ( \ + \ + __asm__ volatile ( \ "int $0x80\n" \ : "=a" (_ret) \ : "r"(_arg1), "r"(_arg2), "r"(_arg3), \ @@ -124,8 +101,8 @@ struct sys_stat_struct { register long _arg2 __asm__ ("ecx") = (long)(arg2); \ register long _arg3 __asm__ ("edx") = (long)(arg3); \ register long _arg4 __asm__ ("esi") = (long)(arg4); \ - \ - __asm__ volatile ( \ + \ + __asm__ volatile ( \ "int $0x80\n" \ : "=a" (_ret) \ : "r"(_arg1), "r"(_arg2), "r"(_arg3), "r"(_arg4), \ @@ -144,8 +121,8 @@ struct sys_stat_struct { register long _arg3 __asm__ ("edx") = (long)(arg3); \ register long _arg4 __asm__ ("esi") = (long)(arg4); \ register long _arg5 __asm__ ("edi") = (long)(arg5); \ - \ - __asm__ volatile ( \ + \ + __asm__ volatile ( \ "int $0x80\n" \ : "=a" (_ret) \ : "r"(_arg1), "r"(_arg2), "r"(_arg3), "r"(_arg4), "r"(_arg5), \ @@ -178,11 +155,6 @@ struct sys_stat_struct { _eax; \ }) -char **environ __attribute__((weak)); -const unsigned long *_auxv __attribute__((weak)); - -#define __ARCH_SUPPORTS_STACK_PROTECTOR - /* startup code */ /* * i386 System V ABI mandates: @@ -190,35 +162,17 @@ const unsigned long *_auxv __attribute__((weak)); * 2) The deepest stack frame should be set to zero * */ -void __attribute__((weak,noreturn,optimize("omit-frame-pointer"),no_stack_protector)) _start(void) +void __attribute__((weak, noreturn, optimize("Os", "omit-frame-pointer"))) __no_stack_protector _start(void) { __asm__ volatile ( -#ifdef NOLIBC_STACKPROTECTOR - "call __stack_chk_init\n" // initialize stack protector -#endif - "pop %eax\n" // argc (first arg, %eax) - "mov %esp, %ebx\n" // argv[] (second arg, %ebx) - "lea 4(%ebx,%eax,4),%ecx\n" // then a NULL then envp (third arg, %ecx) - "mov %ecx, environ\n" // save environ - "xor %ebp, %ebp\n" // zero the stack frame - "mov %ecx, %edx\n" // search for auxv (follows NULL after last env) - "0:\n" - "add $4, %edx\n" // search for auxv using edx, it follows the - "cmp -4(%edx), %ebp\n" // ... NULL after last env (ebp is zero here) - "jnz 0b\n" - "mov %edx, _auxv\n" // save it into _auxv - "and $-16, %esp\n" // x86 ABI : esp must be 16-byte aligned before - "sub $4, %esp\n" // the call instruction (args are aligned) - "push %ecx\n" // push all registers on the stack so that we - "push %ebx\n" // support both regparm and plain stack modes - "push %eax\n" - "call main\n" // main() returns the status code in %eax - "mov %eax, %ebx\n" // retrieve exit code (32-bit int) - "movl $1, %eax\n" // NR_exit == 1 - "int $0x80\n" // exit now - "hlt\n" // ensure it does not + "xor %ebp, %ebp\n" /* zero the stack frame */ + "mov %esp, %eax\n" /* save stack pointer to %eax, as arg1 of _start_c */ + "and $-16, %esp\n" /* last pushed argument must be 16-byte aligned */ + "push %eax\n" /* push arg1 on stack to support plain stack modes too */ + "call _start_c\n" /* transfer to c runtime */ + "hlt\n" /* ensure it does not return */ ); __builtin_unreachable(); } -#endif // _NOLIBC_ARCH_I386_H +#endif /* _NOLIBC_ARCH_I386_H */ diff --git a/tools/include/nolibc/arch-loongarch.h b/tools/include/nolibc/arch-loongarch.h index 029ee3cd6baf..bf98f6220195 100644 --- a/tools/include/nolibc/arch-loongarch.h +++ b/tools/include/nolibc/arch-loongarch.h @@ -7,6 +7,9 @@ #ifndef _NOLIBC_ARCH_LOONGARCH_H #define _NOLIBC_ARCH_LOONGARCH_H +#include "compiler.h" +#include "crt.h" + /* Syscalls for LoongArch : * - stack is 16-byte aligned * - syscall number is passed in a7 @@ -20,18 +23,19 @@ * On LoongArch, select() is not implemented so we have to use pselect6(). */ #define __ARCH_WANT_SYS_PSELECT6 +#define _NOLIBC_SYSCALL_CLOBBERLIST \ + "memory", "$t0", "$t1", "$t2", "$t3", "$t4", "$t5", "$t6", "$t7", "$t8" #define my_syscall0(num) \ ({ \ register long _num __asm__ ("a7") = (num); \ register long _arg1 __asm__ ("a0"); \ \ - __asm__ volatile ( \ + __asm__ volatile ( \ "syscall 0\n" \ : "=r"(_arg1) \ : "r"(_num) \ - : "memory", "$t0", "$t1", "$t2", "$t3", \ - "$t4", "$t5", "$t6", "$t7", "$t8" \ + : _NOLIBC_SYSCALL_CLOBBERLIST \ ); \ _arg1; \ }) @@ -41,12 +45,11 @@ register long _num __asm__ ("a7") = (num); \ register long _arg1 __asm__ ("a0") = (long)(arg1); \ \ - __asm__ volatile ( \ + __asm__ volatile ( \ "syscall 0\n" \ : "+r"(_arg1) \ : "r"(_num) \ - : "memory", "$t0", "$t1", "$t2", "$t3", \ - "$t4", "$t5", "$t6", "$t7", "$t8" \ + : _NOLIBC_SYSCALL_CLOBBERLIST \ ); \ _arg1; \ }) @@ -57,13 +60,12 @@ register long _arg1 __asm__ ("a0") = (long)(arg1); \ register long _arg2 __asm__ ("a1") = (long)(arg2); \ \ - __asm__ volatile ( \ + __asm__ volatile ( \ "syscall 0\n" \ : "+r"(_arg1) \ : "r"(_arg2), \ "r"(_num) \ - : "memory", "$t0", "$t1", "$t2", "$t3", \ - "$t4", "$t5", "$t6", "$t7", "$t8" \ + : _NOLIBC_SYSCALL_CLOBBERLIST \ ); \ _arg1; \ }) @@ -75,13 +77,12 @@ register long _arg2 __asm__ ("a1") = (long)(arg2); \ register long _arg3 __asm__ ("a2") = (long)(arg3); \ \ - __asm__ volatile ( \ + __asm__ volatile ( \ "syscall 0\n" \ : "+r"(_arg1) \ : "r"(_arg2), "r"(_arg3), \ "r"(_num) \ - : "memory", "$t0", "$t1", "$t2", "$t3", \ - "$t4", "$t5", "$t6", "$t7", "$t8" \ + : _NOLIBC_SYSCALL_CLOBBERLIST \ ); \ _arg1; \ }) @@ -94,13 +95,12 @@ register long _arg3 __asm__ ("a2") = (long)(arg3); \ register long _arg4 __asm__ ("a3") = (long)(arg4); \ \ - __asm__ volatile ( \ + __asm__ volatile ( \ "syscall 0\n" \ : "+r"(_arg1) \ : "r"(_arg2), "r"(_arg3), "r"(_arg4), \ "r"(_num) \ - : "memory", "$t0", "$t1", "$t2", "$t3", \ - "$t4", "$t5", "$t6", "$t7", "$t8" \ + : _NOLIBC_SYSCALL_CLOBBERLIST \ ); \ _arg1; \ }) @@ -114,13 +114,12 @@ register long _arg4 __asm__ ("a3") = (long)(arg4); \ register long _arg5 __asm__ ("a4") = (long)(arg5); \ \ - __asm__ volatile ( \ + __asm__ volatile ( \ "syscall 0\n" \ : "+r"(_arg1) \ : "r"(_arg2), "r"(_arg3), "r"(_arg4), "r"(_arg5), \ "r"(_num) \ - : "memory", "$t0", "$t1", "$t2", "$t3", \ - "$t4", "$t5", "$t6", "$t7", "$t8" \ + : _NOLIBC_SYSCALL_CLOBBERLIST \ ); \ _arg1; \ }) @@ -135,66 +134,31 @@ register long _arg5 __asm__ ("a4") = (long)(arg5); \ register long _arg6 __asm__ ("a5") = (long)(arg6); \ \ - __asm__ volatile ( \ + __asm__ volatile ( \ "syscall 0\n" \ : "+r"(_arg1) \ : "r"(_arg2), "r"(_arg3), "r"(_arg4), "r"(_arg5), "r"(_arg6), \ "r"(_num) \ - : "memory", "$t0", "$t1", "$t2", "$t3", \ - "$t4", "$t5", "$t6", "$t7", "$t8" \ + : _NOLIBC_SYSCALL_CLOBBERLIST \ ); \ _arg1; \ }) -char **environ __attribute__((weak)); -const unsigned long *_auxv __attribute__((weak)); - #if __loongarch_grlen == 32 -#define LONGLOG "2" -#define SZREG "4" -#define REG_L "ld.w" -#define LONG_S "st.w" -#define LONG_ADD "add.w" -#define LONG_ADDI "addi.w" -#define LONG_SLL "slli.w" #define LONG_BSTRINS "bstrins.w" -#else // __loongarch_grlen == 64 -#define LONGLOG "3" -#define SZREG "8" -#define REG_L "ld.d" -#define LONG_S "st.d" -#define LONG_ADD "add.d" -#define LONG_ADDI "addi.d" -#define LONG_SLL "slli.d" +#else /* __loongarch_grlen == 64 */ #define LONG_BSTRINS "bstrins.d" #endif /* startup code */ -void __attribute__((weak,noreturn,optimize("omit-frame-pointer"))) _start(void) +void __attribute__((weak, noreturn, optimize("Os", "omit-frame-pointer"))) __no_stack_protector _start(void) { __asm__ volatile ( - REG_L " $a0, $sp, 0\n" // argc (a0) was in the stack - LONG_ADDI " $a1, $sp, "SZREG"\n" // argv (a1) = sp + SZREG - LONG_SLL " $a2, $a0, "LONGLOG"\n" // envp (a2) = SZREG*argc ... - LONG_ADDI " $a2, $a2, "SZREG"\n" // + SZREG (skip null) - LONG_ADD " $a2, $a2, $a1\n" // + argv - - "move $a3, $a2\n" // iterate a3 over envp to find auxv (after NULL) - "0:\n" // do { - REG_L " $a4, $a3, 0\n" // a4 = *a3; - LONG_ADDI " $a3, $a3, "SZREG"\n" // a3 += sizeof(void*); - "bne $a4, $zero, 0b\n" // } while (a4); - "la.pcrel $a4, _auxv\n" // a4 = &_auxv - LONG_S " $a3, $a4, 0\n" // store a3 into _auxv - - "la.pcrel $a3, environ\n" // a3 = &environ - LONG_S " $a2, $a3, 0\n" // store envp(a2) into environ - LONG_BSTRINS " $sp, $zero, 3, 0\n" // sp must be 16-byte aligned - "bl main\n" // main() returns the status code, we'll exit with it. - "li.w $a7, 93\n" // NR_exit == 93 - "syscall 0\n" + "move $a0, $sp\n" /* save stack pointer to $a0, as arg1 of _start_c */ + LONG_BSTRINS " $sp, $zero, 3, 0\n" /* $sp must be 16-byte aligned */ + "bl _start_c\n" /* transfer to c runtime */ ); __builtin_unreachable(); } -#endif // _NOLIBC_ARCH_LOONGARCH_H +#endif /* _NOLIBC_ARCH_LOONGARCH_H */ diff --git a/tools/include/nolibc/arch-mips.h b/tools/include/nolibc/arch-mips.h index bf83432d23ed..4ab6fa54beee 100644 --- a/tools/include/nolibc/arch-mips.h +++ b/tools/include/nolibc/arch-mips.h @@ -7,33 +7,8 @@ #ifndef _NOLIBC_ARCH_MIPS_H #define _NOLIBC_ARCH_MIPS_H -/* The struct returned by the stat() syscall. 88 bytes are returned by the - * syscall. - */ -struct sys_stat_struct { - unsigned int st_dev; - long st_pad1[3]; - unsigned long st_ino; - unsigned int st_mode; - unsigned int st_nlink; - unsigned int st_uid; - unsigned int st_gid; - unsigned int st_rdev; - long st_pad2[2]; - long st_size; - long st_pad3; - - long st_atime; - long st_atime_nsec; - long st_mtime; - long st_mtime_nsec; - - long st_ctime; - long st_ctime_nsec; - long st_blksize; - long st_blocks; - long st_pad4[14]; -}; +#include "compiler.h" +#include "crt.h" /* Syscalls for MIPS ABI O32 : * - WARNING! there's always a delayed slot! @@ -55,19 +30,22 @@ struct sys_stat_struct { * don't have to experience issues with register constraints. */ +#define _NOLIBC_SYSCALL_CLOBBERLIST \ + "memory", "cc", "at", "v1", "hi", "lo", \ + "t0", "t1", "t2", "t3", "t4", "t5", "t6", "t7", "t8", "t9" + #define my_syscall0(num) \ ({ \ register long _num __asm__ ("v0") = (num); \ register long _arg4 __asm__ ("a3"); \ - \ - __asm__ volatile ( \ + \ + __asm__ volatile ( \ "addiu $sp, $sp, -32\n" \ "syscall\n" \ "addiu $sp, $sp, 32\n" \ : "=r"(_num), "=r"(_arg4) \ : "r"(_num) \ - : "memory", "cc", "at", "v1", "hi", "lo", \ - "t0", "t1", "t2", "t3", "t4", "t5", "t6", "t7", "t8", "t9" \ + : _NOLIBC_SYSCALL_CLOBBERLIST \ ); \ _arg4 ? -_num : _num; \ }) @@ -77,16 +55,15 @@ struct sys_stat_struct { register long _num __asm__ ("v0") = (num); \ register long _arg1 __asm__ ("a0") = (long)(arg1); \ register long _arg4 __asm__ ("a3"); \ - \ - __asm__ volatile ( \ + \ + __asm__ volatile ( \ "addiu $sp, $sp, -32\n" \ "syscall\n" \ "addiu $sp, $sp, 32\n" \ : "=r"(_num), "=r"(_arg4) \ : "0"(_num), \ "r"(_arg1) \ - : "memory", "cc", "at", "v1", "hi", "lo", \ - "t0", "t1", "t2", "t3", "t4", "t5", "t6", "t7", "t8", "t9" \ + : _NOLIBC_SYSCALL_CLOBBERLIST \ ); \ _arg4 ? -_num : _num; \ }) @@ -97,16 +74,15 @@ struct sys_stat_struct { register long _arg1 __asm__ ("a0") = (long)(arg1); \ register long _arg2 __asm__ ("a1") = (long)(arg2); \ register long _arg4 __asm__ ("a3"); \ - \ - __asm__ volatile ( \ + \ + __asm__ volatile ( \ "addiu $sp, $sp, -32\n" \ "syscall\n" \ "addiu $sp, $sp, 32\n" \ : "=r"(_num), "=r"(_arg4) \ : "0"(_num), \ "r"(_arg1), "r"(_arg2) \ - : "memory", "cc", "at", "v1", "hi", "lo", \ - "t0", "t1", "t2", "t3", "t4", "t5", "t6", "t7", "t8", "t9" \ + : _NOLIBC_SYSCALL_CLOBBERLIST \ ); \ _arg4 ? -_num : _num; \ }) @@ -118,16 +94,15 @@ struct sys_stat_struct { register long _arg2 __asm__ ("a1") = (long)(arg2); \ register long _arg3 __asm__ ("a2") = (long)(arg3); \ register long _arg4 __asm__ ("a3"); \ - \ - __asm__ volatile ( \ + \ + __asm__ volatile ( \ "addiu $sp, $sp, -32\n" \ "syscall\n" \ "addiu $sp, $sp, 32\n" \ : "=r"(_num), "=r"(_arg4) \ : "0"(_num), \ "r"(_arg1), "r"(_arg2), "r"(_arg3) \ - : "memory", "cc", "at", "v1", "hi", "lo", \ - "t0", "t1", "t2", "t3", "t4", "t5", "t6", "t7", "t8", "t9" \ + : _NOLIBC_SYSCALL_CLOBBERLIST \ ); \ _arg4 ? -_num : _num; \ }) @@ -139,16 +114,15 @@ struct sys_stat_struct { register long _arg2 __asm__ ("a1") = (long)(arg2); \ register long _arg3 __asm__ ("a2") = (long)(arg3); \ register long _arg4 __asm__ ("a3") = (long)(arg4); \ - \ - __asm__ volatile ( \ + \ + __asm__ volatile ( \ "addiu $sp, $sp, -32\n" \ "syscall\n" \ "addiu $sp, $sp, 32\n" \ : "=r" (_num), "=r"(_arg4) \ : "0"(_num), \ "r"(_arg1), "r"(_arg2), "r"(_arg3), "r"(_arg4) \ - : "memory", "cc", "at", "v1", "hi", "lo", \ - "t0", "t1", "t2", "t3", "t4", "t5", "t6", "t7", "t8", "t9" \ + : _NOLIBC_SYSCALL_CLOBBERLIST \ ); \ _arg4 ? -_num : _num; \ }) @@ -161,64 +135,61 @@ struct sys_stat_struct { register long _arg3 __asm__ ("a2") = (long)(arg3); \ register long _arg4 __asm__ ("a3") = (long)(arg4); \ register long _arg5 = (long)(arg5); \ - \ - __asm__ volatile ( \ + \ + __asm__ volatile ( \ "addiu $sp, $sp, -32\n" \ "sw %7, 16($sp)\n" \ - "syscall\n " \ + "syscall\n" \ "addiu $sp, $sp, 32\n" \ : "=r" (_num), "=r"(_arg4) \ : "0"(_num), \ "r"(_arg1), "r"(_arg2), "r"(_arg3), "r"(_arg4), "r"(_arg5) \ - : "memory", "cc", "at", "v1", "hi", "lo", \ - "t0", "t1", "t2", "t3", "t4", "t5", "t6", "t7", "t8", "t9" \ + : _NOLIBC_SYSCALL_CLOBBERLIST \ ); \ _arg4 ? -_num : _num; \ }) -char **environ __attribute__((weak)); -const unsigned long *_auxv __attribute__((weak)); +#define my_syscall6(num, arg1, arg2, arg3, arg4, arg5, arg6) \ +({ \ + register long _num __asm__ ("v0") = (num); \ + register long _arg1 __asm__ ("a0") = (long)(arg1); \ + register long _arg2 __asm__ ("a1") = (long)(arg2); \ + register long _arg3 __asm__ ("a2") = (long)(arg3); \ + register long _arg4 __asm__ ("a3") = (long)(arg4); \ + register long _arg5 = (long)(arg5); \ + register long _arg6 = (long)(arg6); \ + \ + __asm__ volatile ( \ + "addiu $sp, $sp, -32\n" \ + "sw %7, 16($sp)\n" \ + "sw %8, 20($sp)\n" \ + "syscall\n" \ + "addiu $sp, $sp, 32\n" \ + : "=r" (_num), "=r"(_arg4) \ + : "0"(_num), \ + "r"(_arg1), "r"(_arg2), "r"(_arg3), "r"(_arg4), "r"(_arg5), \ + "r"(_arg6) \ + : _NOLIBC_SYSCALL_CLOBBERLIST \ + ); \ + _arg4 ? -_num : _num; \ +}) /* startup code, note that it's called __start on MIPS */ -void __attribute__((weak,noreturn,optimize("omit-frame-pointer"))) __start(void) +void __attribute__((weak, noreturn, optimize("Os", "omit-frame-pointer"))) __no_stack_protector __start(void) { __asm__ volatile ( - //".set nomips16\n" ".set push\n" - ".set noreorder\n" + ".set noreorder\n" ".option pic0\n" - //".ent __start\n" - //"__start:\n" - "lw $a0,($sp)\n" // argc was in the stack - "addiu $a1, $sp, 4\n" // argv = sp + 4 - "sll $a2, $a0, 2\n" // a2 = argc * 4 - "add $a2, $a2, $a1\n" // envp = argv + 4*argc ... - "addiu $a2, $a2, 4\n" // ... + 4 - "lui $a3, %hi(environ)\n" // load environ into a3 (hi) - "addiu $a3, %lo(environ)\n" // load environ into a3 (lo) - "sw $a2,($a3)\n" // store envp(a2) into environ - - "move $t0, $a2\n" // iterate t0 over envp, look for NULL - "0:" // do { - "lw $a3, ($t0)\n" // a3=*(t0); - "bne $a3, $0, 0b\n" // } while (a3); - "addiu $t0, $t0, 4\n" // delayed slot: t0+=4; - "lui $a3, %hi(_auxv)\n" // load _auxv into a3 (hi) - "addiu $a3, %lo(_auxv)\n" // load _auxv into a3 (lo) - "sw $t0, ($a3)\n" // store t0 into _auxv - - "li $t0, -8\n" - "and $sp, $sp, $t0\n" // sp must be 8-byte aligned - "addiu $sp,$sp,-16\n" // the callee expects to save a0..a3 there! - "jal main\n" // main() returns the status code, we'll exit with it. - "nop\n" // delayed slot - "move $a0, $v0\n" // retrieve 32-bit exit code from v0 - "li $v0, 4001\n" // NR_exit == 4001 - "syscall\n" - //".end __start\n" + "move $a0, $sp\n" /* save stack pointer to $a0, as arg1 of _start_c */ + "li $t0, -8\n" + "and $sp, $sp, $t0\n" /* $sp must be 8-byte aligned */ + "addiu $sp, $sp, -16\n" /* the callee expects to save a0..a3 there */ + "jal _start_c\n" /* transfer to c runtime */ + " nop\n" /* delayed slot */ ".set pop\n" ); __builtin_unreachable(); } -#endif // _NOLIBC_ARCH_MIPS_H +#endif /* _NOLIBC_ARCH_MIPS_H */ diff --git a/tools/include/nolibc/arch-powerpc.h b/tools/include/nolibc/arch-powerpc.h new file mode 100644 index 000000000000..ac212e6185b2 --- /dev/null +++ b/tools/include/nolibc/arch-powerpc.h @@ -0,0 +1,221 @@ +/* SPDX-License-Identifier: LGPL-2.1 OR MIT */ +/* + * PowerPC specific definitions for NOLIBC + * Copyright (C) 2023 Zhangjin Wu <[email protected]> + */ + +#ifndef _NOLIBC_ARCH_POWERPC_H +#define _NOLIBC_ARCH_POWERPC_H + +#include "compiler.h" +#include "crt.h" + +/* Syscalls for PowerPC : + * - stack is 16-byte aligned + * - syscall number is passed in r0 + * - arguments are in r3, r4, r5, r6, r7, r8, r9 + * - the system call is performed by calling "sc" + * - syscall return comes in r3, and the summary overflow bit is checked + * to know if an error occurred, in which case errno is in r3. + * - the arguments are cast to long and assigned into the target + * registers which are then simply passed as registers to the asm code, + * so that we don't have to experience issues with register constraints. + */ + +#define _NOLIBC_SYSCALL_CLOBBERLIST \ + "memory", "cr0", "r12", "r11", "r10", "r9" + +#define my_syscall0(num) \ +({ \ + register long _ret __asm__ ("r3"); \ + register long _num __asm__ ("r0") = (num); \ + \ + __asm__ volatile ( \ + " sc\n" \ + " bns+ 1f\n" \ + " neg %0, %0\n" \ + "1:\n" \ + : "=r"(_ret), "+r"(_num) \ + : \ + : _NOLIBC_SYSCALL_CLOBBERLIST, "r8", "r7", "r6", "r5", "r4" \ + ); \ + _ret; \ +}) + +#define my_syscall1(num, arg1) \ +({ \ + register long _ret __asm__ ("r3"); \ + register long _num __asm__ ("r0") = (num); \ + register long _arg1 __asm__ ("r3") = (long)(arg1); \ + \ + __asm__ volatile ( \ + " sc\n" \ + " bns+ 1f\n" \ + " neg %0, %0\n" \ + "1:\n" \ + : "=r"(_ret), "+r"(_num) \ + : "0"(_arg1) \ + : _NOLIBC_SYSCALL_CLOBBERLIST, "r8", "r7", "r6", "r5", "r4" \ + ); \ + _ret; \ +}) + + +#define my_syscall2(num, arg1, arg2) \ +({ \ + register long _ret __asm__ ("r3"); \ + register long _num __asm__ ("r0") = (num); \ + register long _arg1 __asm__ ("r3") = (long)(arg1); \ + register long _arg2 __asm__ ("r4") = (long)(arg2); \ + \ + __asm__ volatile ( \ + " sc\n" \ + " bns+ 1f\n" \ + " neg %0, %0\n" \ + "1:\n" \ + : "=r"(_ret), "+r"(_num), "+r"(_arg2) \ + : "0"(_arg1) \ + : _NOLIBC_SYSCALL_CLOBBERLIST, "r8", "r7", "r6", "r5" \ + ); \ + _ret; \ +}) + + +#define my_syscall3(num, arg1, arg2, arg3) \ +({ \ + register long _ret __asm__ ("r3"); \ + register long _num __asm__ ("r0") = (num); \ + register long _arg1 __asm__ ("r3") = (long)(arg1); \ + register long _arg2 __asm__ ("r4") = (long)(arg2); \ + register long _arg3 __asm__ ("r5") = (long)(arg3); \ + \ + __asm__ volatile ( \ + " sc\n" \ + " bns+ 1f\n" \ + " neg %0, %0\n" \ + "1:\n" \ + : "=r"(_ret), "+r"(_num), "+r"(_arg2), "+r"(_arg3) \ + : "0"(_arg1) \ + : _NOLIBC_SYSCALL_CLOBBERLIST, "r8", "r7", "r6" \ + ); \ + _ret; \ +}) + + +#define my_syscall4(num, arg1, arg2, arg3, arg4) \ +({ \ + register long _ret __asm__ ("r3"); \ + register long _num __asm__ ("r0") = (num); \ + register long _arg1 __asm__ ("r3") = (long)(arg1); \ + register long _arg2 __asm__ ("r4") = (long)(arg2); \ + register long _arg3 __asm__ ("r5") = (long)(arg3); \ + register long _arg4 __asm__ ("r6") = (long)(arg4); \ + \ + __asm__ volatile ( \ + " sc\n" \ + " bns+ 1f\n" \ + " neg %0, %0\n" \ + "1:\n" \ + : "=r"(_ret), "+r"(_num), "+r"(_arg2), "+r"(_arg3), \ + "+r"(_arg4) \ + : "0"(_arg1) \ + : _NOLIBC_SYSCALL_CLOBBERLIST, "r8", "r7" \ + ); \ + _ret; \ +}) + + +#define my_syscall5(num, arg1, arg2, arg3, arg4, arg5) \ +({ \ + register long _ret __asm__ ("r3"); \ + register long _num __asm__ ("r0") = (num); \ + register long _arg1 __asm__ ("r3") = (long)(arg1); \ + register long _arg2 __asm__ ("r4") = (long)(arg2); \ + register long _arg3 __asm__ ("r5") = (long)(arg3); \ + register long _arg4 __asm__ ("r6") = (long)(arg4); \ + register long _arg5 __asm__ ("r7") = (long)(arg5); \ + \ + __asm__ volatile ( \ + " sc\n" \ + " bns+ 1f\n" \ + " neg %0, %0\n" \ + "1:\n" \ + : "=r"(_ret), "+r"(_num), "+r"(_arg2), "+r"(_arg3), \ + "+r"(_arg4), "+r"(_arg5) \ + : "0"(_arg1) \ + : _NOLIBC_SYSCALL_CLOBBERLIST, "r8" \ + ); \ + _ret; \ +}) + +#define my_syscall6(num, arg1, arg2, arg3, arg4, arg5, arg6) \ +({ \ + register long _ret __asm__ ("r3"); \ + register long _num __asm__ ("r0") = (num); \ + register long _arg1 __asm__ ("r3") = (long)(arg1); \ + register long _arg2 __asm__ ("r4") = (long)(arg2); \ + register long _arg3 __asm__ ("r5") = (long)(arg3); \ + register long _arg4 __asm__ ("r6") = (long)(arg4); \ + register long _arg5 __asm__ ("r7") = (long)(arg5); \ + register long _arg6 __asm__ ("r8") = (long)(arg6); \ + \ + __asm__ volatile ( \ + " sc\n" \ + " bns+ 1f\n" \ + " neg %0, %0\n" \ + "1:\n" \ + : "=r"(_ret), "+r"(_num), "+r"(_arg2), "+r"(_arg3), \ + "+r"(_arg4), "+r"(_arg5), "+r"(_arg6) \ + : "0"(_arg1) \ + : _NOLIBC_SYSCALL_CLOBBERLIST \ + ); \ + _ret; \ +}) + +#ifndef __powerpc64__ +/* FIXME: For 32-bit PowerPC, with newer gcc compilers (e.g. gcc 13.1.0), + * "omit-frame-pointer" fails with __attribute__((no_stack_protector)) but + * works with __attribute__((__optimize__("-fno-stack-protector"))) + */ +#ifdef __no_stack_protector +#undef __no_stack_protector +#define __no_stack_protector __attribute__((__optimize__("-fno-stack-protector"))) +#endif +#endif /* !__powerpc64__ */ + +/* startup code */ +void __attribute__((weak, noreturn, optimize("Os", "omit-frame-pointer"))) __no_stack_protector _start(void) +{ +#ifdef __powerpc64__ +#if _CALL_ELF == 2 + /* with -mabi=elfv2, save TOC/GOT pointer to r2 + * r12 is global entry pointer, we use it to compute TOC from r12 + * https://www.llvm.org/devmtg/2014-04/PDFs/Talks/Euro-LLVM-2014-Weigand.pdf + * https://refspecs.linuxfoundation.org/ELF/ppc64/PPC-elf64abi.pdf + */ + __asm__ volatile ( + "addis 2, 12, .TOC. - _start@ha\n" + "addi 2, 2, .TOC. - _start@l\n" + ); +#endif /* _CALL_ELF == 2 */ + + __asm__ volatile ( + "mr 3, 1\n" /* save stack pointer to r3, as arg1 of _start_c */ + "clrrdi 1, 1, 4\n" /* align the stack to 16 bytes */ + "li 0, 0\n" /* zero the frame pointer */ + "stdu 1, -32(1)\n" /* the initial stack frame */ + "bl _start_c\n" /* transfer to c runtime */ + ); +#else + __asm__ volatile ( + "mr 3, 1\n" /* save stack pointer to r3, as arg1 of _start_c */ + "clrrwi 1, 1, 4\n" /* align the stack to 16 bytes */ + "li 0, 0\n" /* zero the frame pointer */ + "stwu 1, -16(1)\n" /* the initial stack frame */ + "bl _start_c\n" /* transfer to c runtime */ + ); +#endif + __builtin_unreachable(); +} + +#endif /* _NOLIBC_ARCH_POWERPC_H */ diff --git a/tools/include/nolibc/arch-riscv.h b/tools/include/nolibc/arch-riscv.h index e197fcb10ac0..950cc2283fd7 100644 --- a/tools/include/nolibc/arch-riscv.h +++ b/tools/include/nolibc/arch-riscv.h @@ -7,36 +7,8 @@ #ifndef _NOLIBC_ARCH_RISCV_H #define _NOLIBC_ARCH_RISCV_H -struct sys_stat_struct { - unsigned long st_dev; /* Device. */ - unsigned long st_ino; /* File serial number. */ - unsigned int st_mode; /* File mode. */ - unsigned int st_nlink; /* Link count. */ - unsigned int st_uid; /* User ID of the file's owner. */ - unsigned int st_gid; /* Group ID of the file's group. */ - unsigned long st_rdev; /* Device number, if device. */ - unsigned long __pad1; - long st_size; /* Size of file, in bytes. */ - int st_blksize; /* Optimal block size for I/O. */ - int __pad2; - long st_blocks; /* Number 512-byte blocks allocated. */ - long st_atime; /* Time of last access. */ - unsigned long st_atime_nsec; - long st_mtime; /* Time of last modification. */ - unsigned long st_mtime_nsec; - long st_ctime; /* Time of last status change. */ - unsigned long st_ctime_nsec; - unsigned int __unused4; - unsigned int __unused5; -}; - -#if __riscv_xlen == 64 -#define PTRLOG "3" -#define SZREG "8" -#elif __riscv_xlen == 32 -#define PTRLOG "2" -#define SZREG "4" -#endif +#include "compiler.h" +#include "crt.h" /* Syscalls for RISCV : * - stack is 16-byte aligned @@ -57,7 +29,7 @@ struct sys_stat_struct { register long _num __asm__ ("a7") = (num); \ register long _arg1 __asm__ ("a0"); \ \ - __asm__ volatile ( \ + __asm__ volatile ( \ "ecall\n\t" \ : "=r"(_arg1) \ : "r"(_num) \ @@ -71,7 +43,7 @@ struct sys_stat_struct { register long _num __asm__ ("a7") = (num); \ register long _arg1 __asm__ ("a0") = (long)(arg1); \ \ - __asm__ volatile ( \ + __asm__ volatile ( \ "ecall\n" \ : "+r"(_arg1) \ : "r"(_num) \ @@ -86,7 +58,7 @@ struct sys_stat_struct { register long _arg1 __asm__ ("a0") = (long)(arg1); \ register long _arg2 __asm__ ("a1") = (long)(arg2); \ \ - __asm__ volatile ( \ + __asm__ volatile ( \ "ecall\n" \ : "+r"(_arg1) \ : "r"(_arg2), \ @@ -103,7 +75,7 @@ struct sys_stat_struct { register long _arg2 __asm__ ("a1") = (long)(arg2); \ register long _arg3 __asm__ ("a2") = (long)(arg3); \ \ - __asm__ volatile ( \ + __asm__ volatile ( \ "ecall\n\t" \ : "+r"(_arg1) \ : "r"(_arg2), "r"(_arg3), \ @@ -121,7 +93,7 @@ struct sys_stat_struct { register long _arg3 __asm__ ("a2") = (long)(arg3); \ register long _arg4 __asm__ ("a3") = (long)(arg4); \ \ - __asm__ volatile ( \ + __asm__ volatile ( \ "ecall\n" \ : "+r"(_arg1) \ : "r"(_arg2), "r"(_arg3), "r"(_arg4), \ @@ -140,7 +112,7 @@ struct sys_stat_struct { register long _arg4 __asm__ ("a3") = (long)(arg4); \ register long _arg5 __asm__ ("a4") = (long)(arg5); \ \ - __asm__ volatile ( \ + __asm__ volatile ( \ "ecall\n" \ : "+r"(_arg1) \ : "r"(_arg2), "r"(_arg3), "r"(_arg4), "r"(_arg5), \ @@ -160,7 +132,7 @@ struct sys_stat_struct { register long _arg5 __asm__ ("a4") = (long)(arg5); \ register long _arg6 __asm__ ("a5") = (long)(arg6); \ \ - __asm__ volatile ( \ + __asm__ volatile ( \ "ecall\n" \ : "+r"(_arg1) \ : "r"(_arg2), "r"(_arg3), "r"(_arg4), "r"(_arg5), "r"(_arg6), \ @@ -170,39 +142,19 @@ struct sys_stat_struct { _arg1; \ }) -char **environ __attribute__((weak)); -const unsigned long *_auxv __attribute__((weak)); - /* startup code */ -void __attribute__((weak,noreturn,optimize("omit-frame-pointer"))) _start(void) +void __attribute__((weak, noreturn, optimize("Os", "omit-frame-pointer"))) __no_stack_protector _start(void) { __asm__ volatile ( ".option push\n" ".option norelax\n" - "lla gp, __global_pointer$\n" + "lla gp, __global_pointer$\n" ".option pop\n" - "lw a0, 0(sp)\n" // argc (a0) was in the stack - "add a1, sp, "SZREG"\n" // argv (a1) = sp - "slli a2, a0, "PTRLOG"\n" // envp (a2) = SZREG*argc ... - "add a2, a2, "SZREG"\n" // + SZREG (skip null) - "add a2,a2,a1\n" // + argv - - "add a3, a2, zero\n" // iterate a3 over envp to find auxv (after NULL) - "0:\n" // do { - "ld a4, 0(a3)\n" // a4 = *a3; - "add a3, a3, "SZREG"\n" // a3 += sizeof(void*); - "bne a4, zero, 0b\n" // } while (a4); - "lui a4, %hi(_auxv)\n" // a4 = &_auxv (high bits) - "sd a3, %lo(_auxv)(a4)\n" // store a3 into _auxv - - "lui a3, %hi(environ)\n" // a3 = &environ (high bits) - "sd a2,%lo(environ)(a3)\n" // store envp(a2) into environ - "andi sp,a1,-16\n" // sp must be 16-byte aligned - "call main\n" // main() returns the status code, we'll exit with it. - "li a7, 93\n" // NR_exit == 93 - "ecall\n" + "mv a0, sp\n" /* save stack pointer to a0, as arg1 of _start_c */ + "andi sp, a0, -16\n" /* sp must be 16-byte aligned */ + "call _start_c\n" /* transfer to c runtime */ ); __builtin_unreachable(); } -#endif // _NOLIBC_ARCH_RISCV_H +#endif /* _NOLIBC_ARCH_RISCV_H */ diff --git a/tools/include/nolibc/arch-s390.h b/tools/include/nolibc/arch-s390.h index 6b0e54ed543d..5d60fd43f883 100644 --- a/tools/include/nolibc/arch-s390.h +++ b/tools/include/nolibc/arch-s390.h @@ -5,32 +5,11 @@ #ifndef _NOLIBC_ARCH_S390_H #define _NOLIBC_ARCH_S390_H +#include <asm/signal.h> #include <asm/unistd.h> -/* The struct returned by the stat() syscall, equivalent to stat64(). The - * syscall returns 116 bytes and stops in the middle of __unused. - */ - -struct sys_stat_struct { - unsigned long st_dev; - unsigned long st_ino; - unsigned long st_nlink; - unsigned int st_mode; - unsigned int st_uid; - unsigned int st_gid; - unsigned int __pad1; - unsigned long st_rdev; - unsigned long st_size; - unsigned long st_atime; - unsigned long st_atime_nsec; - unsigned long st_mtime; - unsigned long st_mtime_nsec; - unsigned long st_ctime; - unsigned long st_ctime_nsec; - unsigned long st_blksize; - long st_blocks; - unsigned long __unused[3]; -}; +#include "compiler.h" +#include "crt.h" /* Syscalls for s390: * - registers are 64-bit @@ -49,7 +28,7 @@ struct sys_stat_struct { register long _num __asm__ ("1") = (num); \ register long _rc __asm__ ("2"); \ \ - __asm__ volatile ( \ + __asm__ volatile ( \ "svc 0\n" \ : "=d"(_rc) \ : "d"(_num) \ @@ -63,7 +42,7 @@ struct sys_stat_struct { register long _num __asm__ ("1") = (num); \ register long _arg1 __asm__ ("2") = (long)(arg1); \ \ - __asm__ volatile ( \ + __asm__ volatile ( \ "svc 0\n" \ : "+d"(_arg1) \ : "d"(_num) \ @@ -78,7 +57,7 @@ struct sys_stat_struct { register long _arg1 __asm__ ("2") = (long)(arg1); \ register long _arg2 __asm__ ("3") = (long)(arg2); \ \ - __asm__ volatile ( \ + __asm__ volatile ( \ "svc 0\n" \ : "+d"(_arg1) \ : "d"(_arg2), "d"(_num) \ @@ -94,7 +73,7 @@ struct sys_stat_struct { register long _arg2 __asm__ ("3") = (long)(arg2); \ register long _arg3 __asm__ ("4") = (long)(arg3); \ \ - __asm__ volatile ( \ + __asm__ volatile ( \ "svc 0\n" \ : "+d"(_arg1) \ : "d"(_arg2), "d"(_arg3), "d"(_num) \ @@ -111,7 +90,7 @@ struct sys_stat_struct { register long _arg3 __asm__ ("4") = (long)(arg3); \ register long _arg4 __asm__ ("5") = (long)(arg4); \ \ - __asm__ volatile ( \ + __asm__ volatile ( \ "svc 0\n" \ : "+d"(_arg1) \ : "d"(_arg2), "d"(_arg3), "d"(_arg4), "d"(_num) \ @@ -129,7 +108,7 @@ struct sys_stat_struct { register long _arg4 __asm__ ("5") = (long)(arg4); \ register long _arg5 __asm__ ("6") = (long)(arg5); \ \ - __asm__ volatile ( \ + __asm__ volatile ( \ "svc 0\n" \ : "+d"(_arg1) \ : "d"(_arg2), "d"(_arg3), "d"(_arg4), "d"(_arg5), \ @@ -149,7 +128,7 @@ struct sys_stat_struct { register long _arg5 __asm__ ("6") = (long)(arg5); \ register long _arg6 __asm__ ("7") = (long)(arg6); \ \ - __asm__ volatile ( \ + __asm__ volatile ( \ "svc 0\n" \ : "+d"(_arg1) \ : "d"(_arg2), "d"(_arg3), "d"(_arg4), "d"(_arg5), \ @@ -159,41 +138,14 @@ struct sys_stat_struct { _arg1; \ }) -char **environ __attribute__((weak)); -const unsigned long *_auxv __attribute__((weak)); - /* startup code */ -void __attribute__((weak,noreturn,optimize("omit-frame-pointer"))) _start(void) +void __attribute__((weak, noreturn, optimize("Os", "omit-frame-pointer"))) __no_stack_protector _start(void) { __asm__ volatile ( - "lg %r2,0(%r15)\n" /* argument count */ - "la %r3,8(%r15)\n" /* argument pointers */ - - "xgr %r0,%r0\n" /* r0 will be our NULL value */ - /* search for envp */ - "lgr %r4,%r3\n" /* start at argv */ - "0:\n" - "clg %r0,0(%r4)\n" /* entry zero? */ - "la %r4,8(%r4)\n" /* advance pointer */ - "jnz 0b\n" /* no -> test next pointer */ - /* yes -> r4 now contains start of envp */ - "larl %r1,environ\n" - "stg %r4,0(%r1)\n" - - /* search for auxv */ - "lgr %r5,%r4\n" /* start at envp */ - "1:\n" - "clg %r0,0(%r5)\n" /* entry zero? */ - "la %r5,8(%r5)\n" /* advance pointer */ - "jnz 1b\n" /* no -> test next pointer */ - "larl %r1,_auxv\n" /* yes -> store value in _auxv */ - "stg %r5,0(%r1)\n" - - "aghi %r15,-160\n" /* allocate new stackframe */ - "xc 0(8,%r15),0(%r15)\n" /* clear backchain */ - "brasl %r14,main\n" /* ret value of main is arg to exit */ - "lghi %r1,1\n" /* __NR_exit */ - "svc 0\n" + "lgr %r2, %r15\n" /* save stack pointer to %r2, as arg1 of _start_c */ + "aghi %r15, -160\n" /* allocate new stackframe */ + "xc 0(8,%r15), 0(%r15)\n" /* clear backchain */ + "brasl %r14, _start_c\n" /* transfer to c runtime */ ); __builtin_unreachable(); } @@ -223,4 +175,12 @@ void *sys_mmap(void *addr, size_t length, int prot, int flags, int fd, return (void *)my_syscall1(__NR_mmap, &args); } #define sys_mmap sys_mmap -#endif // _NOLIBC_ARCH_S390_H + +static __attribute__((unused)) +pid_t sys_fork(void) +{ + return my_syscall5(__NR_clone, 0, SIGCHLD, 0, 0, 0); +} +#define sys_fork sys_fork + +#endif /* _NOLIBC_ARCH_S390_H */ diff --git a/tools/include/nolibc/arch-x86_64.h b/tools/include/nolibc/arch-x86_64.h index f7f2a11d4c3b..e5ccb926c903 100644 --- a/tools/include/nolibc/arch-x86_64.h +++ b/tools/include/nolibc/arch-x86_64.h @@ -7,32 +7,8 @@ #ifndef _NOLIBC_ARCH_X86_64_H #define _NOLIBC_ARCH_X86_64_H -/* The struct returned by the stat() syscall, equivalent to stat64(). The - * syscall returns 116 bytes and stops in the middle of __unused. - */ -struct sys_stat_struct { - unsigned long st_dev; - unsigned long st_ino; - unsigned long st_nlink; - unsigned int st_mode; - unsigned int st_uid; - - unsigned int st_gid; - unsigned int __pad0; - unsigned long st_rdev; - long st_size; - long st_blksize; - - long st_blocks; - unsigned long st_atime; - unsigned long st_atime_nsec; - unsigned long st_mtime; - - unsigned long st_mtime_nsec; - unsigned long st_ctime; - unsigned long st_ctime_nsec; - long __unused[3]; -}; +#include "compiler.h" +#include "crt.h" /* Syscalls for x86_64 : * - registers are 64-bit @@ -57,8 +33,8 @@ struct sys_stat_struct { ({ \ long _ret; \ register long _num __asm__ ("rax") = (num); \ - \ - __asm__ volatile ( \ + \ + __asm__ volatile ( \ "syscall\n" \ : "=a"(_ret) \ : "0"(_num) \ @@ -72,8 +48,8 @@ struct sys_stat_struct { long _ret; \ register long _num __asm__ ("rax") = (num); \ register long _arg1 __asm__ ("rdi") = (long)(arg1); \ - \ - __asm__ volatile ( \ + \ + __asm__ volatile ( \ "syscall\n" \ : "=a"(_ret) \ : "r"(_arg1), \ @@ -89,8 +65,8 @@ struct sys_stat_struct { register long _num __asm__ ("rax") = (num); \ register long _arg1 __asm__ ("rdi") = (long)(arg1); \ register long _arg2 __asm__ ("rsi") = (long)(arg2); \ - \ - __asm__ volatile ( \ + \ + __asm__ volatile ( \ "syscall\n" \ : "=a"(_ret) \ : "r"(_arg1), "r"(_arg2), \ @@ -107,8 +83,8 @@ struct sys_stat_struct { register long _arg1 __asm__ ("rdi") = (long)(arg1); \ register long _arg2 __asm__ ("rsi") = (long)(arg2); \ register long _arg3 __asm__ ("rdx") = (long)(arg3); \ - \ - __asm__ volatile ( \ + \ + __asm__ volatile ( \ "syscall\n" \ : "=a"(_ret) \ : "r"(_arg1), "r"(_arg2), "r"(_arg3), \ @@ -126,8 +102,8 @@ struct sys_stat_struct { register long _arg2 __asm__ ("rsi") = (long)(arg2); \ register long _arg3 __asm__ ("rdx") = (long)(arg3); \ register long _arg4 __asm__ ("r10") = (long)(arg4); \ - \ - __asm__ volatile ( \ + \ + __asm__ volatile ( \ "syscall\n" \ : "=a"(_ret) \ : "r"(_arg1), "r"(_arg2), "r"(_arg3), "r"(_arg4), \ @@ -146,8 +122,8 @@ struct sys_stat_struct { register long _arg3 __asm__ ("rdx") = (long)(arg3); \ register long _arg4 __asm__ ("r10") = (long)(arg4); \ register long _arg5 __asm__ ("r8") = (long)(arg5); \ - \ - __asm__ volatile ( \ + \ + __asm__ volatile ( \ "syscall\n" \ : "=a"(_ret) \ : "r"(_arg1), "r"(_arg2), "r"(_arg3), "r"(_arg4), "r"(_arg5), \ @@ -167,8 +143,8 @@ struct sys_stat_struct { register long _arg4 __asm__ ("r10") = (long)(arg4); \ register long _arg5 __asm__ ("r8") = (long)(arg5); \ register long _arg6 __asm__ ("r9") = (long)(arg6); \ - \ - __asm__ volatile ( \ + \ + __asm__ volatile ( \ "syscall\n" \ : "=a"(_ret) \ : "r"(_arg1), "r"(_arg2), "r"(_arg3), "r"(_arg4), "r"(_arg5), \ @@ -178,11 +154,6 @@ struct sys_stat_struct { _ret; \ }) -char **environ __attribute__((weak)); -const unsigned long *_auxv __attribute__((weak)); - -#define __ARCH_SUPPORTS_STACK_PROTECTOR - /* startup code */ /* * x86-64 System V ABI mandates: @@ -190,31 +161,16 @@ const unsigned long *_auxv __attribute__((weak)); * 2) The deepest stack frame should be zero (the %rbp). * */ -void __attribute__((weak,noreturn,optimize("omit-frame-pointer"))) _start(void) +void __attribute__((weak, noreturn, optimize("Os", "omit-frame-pointer"))) __no_stack_protector _start(void) { __asm__ volatile ( -#ifdef NOLIBC_STACKPROTECTOR - "call __stack_chk_init\n" // initialize stack protector -#endif - "pop %rdi\n" // argc (first arg, %rdi) - "mov %rsp, %rsi\n" // argv[] (second arg, %rsi) - "lea 8(%rsi,%rdi,8),%rdx\n" // then a NULL then envp (third arg, %rdx) - "mov %rdx, environ\n" // save environ - "xor %ebp, %ebp\n" // zero the stack frame - "mov %rdx, %rax\n" // search for auxv (follows NULL after last env) - "0:\n" - "add $8, %rax\n" // search for auxv using rax, it follows the - "cmp -8(%rax), %rbp\n" // ... NULL after last env (rbp is zero here) - "jnz 0b\n" - "mov %rax, _auxv\n" // save it into _auxv - "and $-16, %rsp\n" // x86 ABI : esp must be 16-byte aligned before call - "call main\n" // main() returns the status code, we'll exit with it. - "mov %eax, %edi\n" // retrieve exit code (32 bit) - "mov $60, %eax\n" // NR_exit == 60 - "syscall\n" // really exit - "hlt\n" // ensure it does not return + "xor %ebp, %ebp\n" /* zero the stack frame */ + "mov %rsp, %rdi\n" /* save stack pointer to %rdi, as arg1 of _start_c */ + "and $-16, %rsp\n" /* %rsp must be 16-byte aligned before call */ + "call _start_c\n" /* transfer to c runtime */ + "hlt\n" /* ensure it does not return */ ); __builtin_unreachable(); } -#endif // _NOLIBC_ARCH_X86_64_H +#endif /* _NOLIBC_ARCH_X86_64_H */ diff --git a/tools/include/nolibc/arch.h b/tools/include/nolibc/arch.h index 2d5386a8d6aa..e276fb0680af 100644 --- a/tools/include/nolibc/arch.h +++ b/tools/include/nolibc/arch.h @@ -7,7 +7,7 @@ * the syscall declarations and the _start code definition. This is the only * global part. On all architectures the kernel puts everything in the stack * before jumping to _start just above us, without any return address (_start - * is not a function but an entry pint). So at the stack pointer we find argc. + * is not a function but an entry point). So at the stack pointer we find argc. * Then argv[] begins, and ends at the first NULL. Then we have envp which * starts and ends with a NULL as well. So envp=argv+argc+1. */ @@ -25,6 +25,8 @@ #include "arch-aarch64.h" #elif defined(__mips__) && defined(_ABIO32) #include "arch-mips.h" +#elif defined(__powerpc__) +#include "arch-powerpc.h" #elif defined(__riscv) #include "arch-riscv.h" #elif defined(__s390x__) diff --git a/tools/include/nolibc/compiler.h b/tools/include/nolibc/compiler.h new file mode 100644 index 000000000000..beddc3665d69 --- /dev/null +++ b/tools/include/nolibc/compiler.h @@ -0,0 +1,25 @@ +/* SPDX-License-Identifier: LGPL-2.1 OR MIT */ +/* + * NOLIBC compiler support header + * Copyright (C) 2023 Thomas Weißschuh <[email protected]> + */ +#ifndef _NOLIBC_COMPILER_H +#define _NOLIBC_COMPILER_H + +#if defined(__SSP__) || defined(__SSP_STRONG__) || defined(__SSP_ALL__) || defined(__SSP_EXPLICIT__) + +#define _NOLIBC_STACKPROTECTOR + +#endif /* defined(__SSP__) ... */ + +#if defined(__has_attribute) +# if __has_attribute(no_stack_protector) +# define __no_stack_protector __attribute__((no_stack_protector)) +# else +# define __no_stack_protector __attribute__((__optimize__("-fno-stack-protector"))) +# endif +#else +# define __no_stack_protector __attribute__((__optimize__("-fno-stack-protector"))) +#endif /* defined(__has_attribute) */ + +#endif /* _NOLIBC_COMPILER_H */ diff --git a/tools/include/nolibc/crt.h b/tools/include/nolibc/crt.h new file mode 100644 index 000000000000..a5f33fef1672 --- /dev/null +++ b/tools/include/nolibc/crt.h @@ -0,0 +1,61 @@ +/* SPDX-License-Identifier: LGPL-2.1 OR MIT */ +/* + * C Run Time support for NOLIBC + * Copyright (C) 2023 Zhangjin Wu <[email protected]> + */ + +#ifndef _NOLIBC_CRT_H +#define _NOLIBC_CRT_H + +char **environ __attribute__((weak)); +const unsigned long *_auxv __attribute__((weak)); + +static void __stack_chk_init(void); +static void exit(int); + +void _start_c(long *sp) +{ + long argc; + char **argv; + char **envp; + const unsigned long *auxv; + /* silence potential warning: conflicting types for 'main' */ + int _nolibc_main(int, char **, char **) __asm__ ("main"); + + /* initialize stack protector */ + __stack_chk_init(); + + /* + * sp : argc <-- argument count, required by main() + * argv: argv[0] <-- argument vector, required by main() + * argv[1] + * ... + * argv[argc-1] + * null + * environ: environ[0] <-- environment variables, required by main() and getenv() + * environ[1] + * ... + * null + * _auxv: _auxv[0] <-- auxiliary vector, required by getauxval() + * _auxv[1] + * ... + * null + */ + + /* assign argc and argv */ + argc = *sp; + argv = (void *)(sp + 1); + + /* find environ */ + environ = envp = argv + argc + 1; + + /* find _auxv */ + for (auxv = (void *)envp; *auxv++;) + ; + _auxv = auxv; + + /* go to application */ + exit(_nolibc_main(argc, argv, envp)); +} + +#endif /* _NOLIBC_CRT_H */ diff --git a/tools/include/nolibc/nolibc.h b/tools/include/nolibc/nolibc.h index 04739a6293c4..1f8d821000ac 100644 --- a/tools/include/nolibc/nolibc.h +++ b/tools/include/nolibc/nolibc.h @@ -13,11 +13,10 @@ * Syscalls are split into 3 levels: * - The lower level is the arch-specific syscall() definition, consisting in * assembly code in compound expressions. These are called my_syscall0() to - * my_syscall6() depending on the number of arguments. The MIPS - * implementation is limited to 5 arguments. All input arguments are cast - * to a long stored in a register. These expressions always return the - * syscall's return value as a signed long value which is often either a - * pointer or the negated errno value. + * my_syscall6() depending on the number of arguments. All input arguments + * are castto a long stored in a register. These expressions always return + * the syscall's return value as a signed long value which is often either + * a pointer or the negated errno value. * * - The second level is mostly architecture-independent. It is made of * static functions called sys_<name>() which rely on my_syscallN() @@ -99,11 +98,11 @@ #include "sys.h" #include "ctype.h" #include "signal.h" +#include "unistd.h" #include "stdio.h" #include "stdlib.h" #include "string.h" #include "time.h" -#include "unistd.h" #include "stackprotector.h" /* Used by programs to avoid std includes */ diff --git a/tools/include/nolibc/stackprotector.h b/tools/include/nolibc/stackprotector.h index d119cbbbc256..13f1d0e60387 100644 --- a/tools/include/nolibc/stackprotector.h +++ b/tools/include/nolibc/stackprotector.h @@ -7,13 +7,9 @@ #ifndef _NOLIBC_STACKPROTECTOR_H #define _NOLIBC_STACKPROTECTOR_H -#include "arch.h" +#include "compiler.h" -#if defined(NOLIBC_STACKPROTECTOR) - -#if !defined(__ARCH_SUPPORTS_STACK_PROTECTOR) -#error "nolibc does not support stack protectors on this arch" -#endif +#if defined(_NOLIBC_STACKPROTECTOR) #include "sys.h" #include "stdlib.h" @@ -41,13 +37,15 @@ void __stack_chk_fail_local(void) __attribute__((weak,section(".data.nolibc_stack_chk"))) uintptr_t __stack_chk_guard; -__attribute__((weak,no_stack_protector,section(".text.nolibc_stack_chk"))) -void __stack_chk_init(void) +static __no_stack_protector void __stack_chk_init(void) { my_syscall3(__NR_getrandom, &__stack_chk_guard, sizeof(__stack_chk_guard), 0); - /* a bit more randomness in case getrandom() fails */ - __stack_chk_guard ^= (uintptr_t) &__stack_chk_guard; + /* a bit more randomness in case getrandom() fails, ensure the guard is never 0 */ + if (__stack_chk_guard != (uintptr_t) &__stack_chk_guard) + __stack_chk_guard ^= (uintptr_t) &__stack_chk_guard; } -#endif // defined(NOLIBC_STACKPROTECTOR) +#else /* !defined(_NOLIBC_STACKPROTECTOR) */ +static void __stack_chk_init(void) {} +#endif /* defined(_NOLIBC_STACKPROTECTOR) */ -#endif // _NOLIBC_STACKPROTECTOR_H +#endif /* _NOLIBC_STACKPROTECTOR_H */ diff --git a/tools/include/nolibc/stdint.h b/tools/include/nolibc/stdint.h index c1ce4f5e0603..6665e272e213 100644 --- a/tools/include/nolibc/stdint.h +++ b/tools/include/nolibc/stdint.h @@ -15,7 +15,7 @@ typedef unsigned int uint32_t; typedef signed int int32_t; typedef unsigned long long uint64_t; typedef signed long long int64_t; -typedef unsigned long size_t; +typedef __SIZE_TYPE__ size_t; typedef signed long ssize_t; typedef unsigned long uintptr_t; typedef signed long intptr_t; @@ -36,8 +36,8 @@ typedef ssize_t int_fast16_t; typedef size_t uint_fast16_t; typedef ssize_t int_fast32_t; typedef size_t uint_fast32_t; -typedef ssize_t int_fast64_t; -typedef size_t uint_fast64_t; +typedef int64_t int_fast64_t; +typedef uint64_t uint_fast64_t; typedef int64_t intmax_t; typedef uint64_t uintmax_t; @@ -84,16 +84,30 @@ typedef uint64_t uintmax_t; #define INT_FAST8_MIN INT8_MIN #define INT_FAST16_MIN INTPTR_MIN #define INT_FAST32_MIN INTPTR_MIN -#define INT_FAST64_MIN INTPTR_MIN +#define INT_FAST64_MIN INT64_MIN #define INT_FAST8_MAX INT8_MAX #define INT_FAST16_MAX INTPTR_MAX #define INT_FAST32_MAX INTPTR_MAX -#define INT_FAST64_MAX INTPTR_MAX +#define INT_FAST64_MAX INT64_MAX #define UINT_FAST8_MAX UINT8_MAX #define UINT_FAST16_MAX SIZE_MAX #define UINT_FAST32_MAX SIZE_MAX -#define UINT_FAST64_MAX SIZE_MAX +#define UINT_FAST64_MAX UINT64_MAX + +#ifndef INT_MIN +#define INT_MIN (-__INT_MAX__ - 1) +#endif +#ifndef INT_MAX +#define INT_MAX __INT_MAX__ +#endif + +#ifndef LONG_MIN +#define LONG_MIN (-__LONG_MAX__ - 1) +#endif +#ifndef LONG_MAX +#define LONG_MAX __LONG_MAX__ +#endif #endif /* _NOLIBC_STDINT_H */ diff --git a/tools/include/nolibc/stdio.h b/tools/include/nolibc/stdio.h index 6cbbb52836a0..cae402c11e57 100644 --- a/tools/include/nolibc/stdio.h +++ b/tools/include/nolibc/stdio.h @@ -21,17 +21,80 @@ #define EOF (-1) #endif -/* just define FILE as a non-empty type */ +/* Buffering mode used by setvbuf. */ +#define _IOFBF 0 /* Fully buffered. */ +#define _IOLBF 1 /* Line buffered. */ +#define _IONBF 2 /* No buffering. */ + +/* just define FILE as a non-empty type. The value of the pointer gives + * the FD: FILE=~fd for fd>=0 or NULL for fd<0. This way positive FILE + * are immediately identified as abnormal entries (i.e. possible copies + * of valid pointers to something else). + */ typedef struct FILE { char dummy[1]; } FILE; -/* We define the 3 common stdio files as constant invalid pointers that - * are easily recognized. - */ -static __attribute__((unused)) FILE* const stdin = (FILE*)-3; -static __attribute__((unused)) FILE* const stdout = (FILE*)-2; -static __attribute__((unused)) FILE* const stderr = (FILE*)-1; +static __attribute__((unused)) FILE* const stdin = (FILE*)(intptr_t)~STDIN_FILENO; +static __attribute__((unused)) FILE* const stdout = (FILE*)(intptr_t)~STDOUT_FILENO; +static __attribute__((unused)) FILE* const stderr = (FILE*)(intptr_t)~STDERR_FILENO; + +/* provides a FILE* equivalent of fd. The mode is ignored. */ +static __attribute__((unused)) +FILE *fdopen(int fd, const char *mode __attribute__((unused))) +{ + if (fd < 0) { + SET_ERRNO(EBADF); + return NULL; + } + return (FILE*)(intptr_t)~fd; +} + +/* provides the fd of stream. */ +static __attribute__((unused)) +int fileno(FILE *stream) +{ + intptr_t i = (intptr_t)stream; + + if (i >= 0) { + SET_ERRNO(EBADF); + return -1; + } + return ~i; +} + +/* flush a stream. */ +static __attribute__((unused)) +int fflush(FILE *stream) +{ + intptr_t i = (intptr_t)stream; + + /* NULL is valid here. */ + if (i > 0) { + SET_ERRNO(EBADF); + return -1; + } + + /* Don't do anything, nolibc does not support buffering. */ + return 0; +} + +/* flush a stream. */ +static __attribute__((unused)) +int fclose(FILE *stream) +{ + intptr_t i = (intptr_t)stream; + + if (i >= 0) { + SET_ERRNO(EBADF); + return -1; + } + + if (close(~i)) + return EOF; + + return 0; +} /* getc(), fgetc(), getchar() */ @@ -41,14 +104,8 @@ static __attribute__((unused)) int fgetc(FILE* stream) { unsigned char ch; - int fd; - - if (stream < stdin || stream > stderr) - return EOF; - fd = 3 + (long)stream; - - if (read(fd, &ch, 1) <= 0) + if (read(fileno(stream), &ch, 1) <= 0) return EOF; return ch; } @@ -68,14 +125,8 @@ static __attribute__((unused)) int fputc(int c, FILE* stream) { unsigned char ch = c; - int fd; - - if (stream < stdin || stream > stderr) - return EOF; - fd = 3 + (long)stream; - - if (write(fd, &ch, 1) <= 0) + if (write(fileno(stream), &ch, 1) <= 0) return EOF; return ch; } @@ -96,12 +147,7 @@ static __attribute__((unused)) int _fwrite(const void *buf, size_t size, FILE *stream) { ssize_t ret; - int fd; - - if (stream < stdin || stream > stderr) - return EOF; - - fd = 3 + (long)stream; + int fd = fileno(stream); while (size) { ret = write(fd, buf, size); @@ -309,6 +355,28 @@ void perror(const char *msg) fprintf(stderr, "%s%serrno=%d\n", (msg && *msg) ? msg : "", (msg && *msg) ? ": " : "", errno); } +static __attribute__((unused)) +int setvbuf(FILE *stream __attribute__((unused)), + char *buf __attribute__((unused)), + int mode, + size_t size __attribute__((unused))) +{ + /* + * nolibc does not support buffering so this is a nop. Just check mode + * is valid as required by the spec. + */ + switch (mode) { + case _IOFBF: + case _IOLBF: + case _IONBF: + break; + default: + return EOF; + } + + return 0; +} + /* make sure to include all global symbols */ #include "nolibc.h" diff --git a/tools/include/nolibc/stdlib.h b/tools/include/nolibc/stdlib.h index 894c955d027e..bacfd35c5156 100644 --- a/tools/include/nolibc/stdlib.h +++ b/tools/include/nolibc/stdlib.h @@ -83,11 +83,10 @@ void free(void *ptr) * declared as a char **, and must be terminated by a NULL (it is recommended * to set this variable to the "envp" argument of main()). If the requested * environment variable exists its value is returned otherwise NULL is - * returned. getenv() is forcefully inlined so that the reference to "environ" - * will be dropped if unused, even at -O0. + * returned. */ static __attribute__((unused)) -char *_getenv(const char *name, char **environ) +char *getenv(const char *name) { int idx, i; @@ -102,13 +101,6 @@ char *_getenv(const char *name, char **environ) return NULL; } -static inline __attribute__((unused,always_inline)) -char *getenv(const char *name) -{ - extern char **environ; - return _getenv(name, environ); -} - static __attribute__((unused)) unsigned long getauxval(unsigned long type) { @@ -231,7 +223,7 @@ int utoh_r(unsigned long in, char *buffer) /* converts unsigned long <in> to an hex string using the static itoa_buffer * and returns the pointer to that string. */ -static inline __attribute__((unused)) +static __inline__ __attribute__((unused)) char *utoh(unsigned long in) { utoh_r(in, itoa_buffer); @@ -293,7 +285,7 @@ int itoa_r(long in, char *buffer) /* for historical compatibility, same as above but returns the pointer to the * buffer. */ -static inline __attribute__((unused)) +static __inline__ __attribute__((unused)) char *ltoa_r(long in, char *buffer) { itoa_r(in, buffer); @@ -303,7 +295,7 @@ char *ltoa_r(long in, char *buffer) /* converts long integer <in> to a string using the static itoa_buffer and * returns the pointer to that string. */ -static inline __attribute__((unused)) +static __inline__ __attribute__((unused)) char *itoa(long in) { itoa_r(in, itoa_buffer); @@ -313,7 +305,7 @@ char *itoa(long in) /* converts long integer <in> to a string using the static itoa_buffer and * returns the pointer to that string. Same as above, for compatibility. */ -static inline __attribute__((unused)) +static __inline__ __attribute__((unused)) char *ltoa(long in) { itoa_r(in, itoa_buffer); @@ -323,7 +315,7 @@ char *ltoa(long in) /* converts unsigned long integer <in> to a string using the static itoa_buffer * and returns the pointer to that string. */ -static inline __attribute__((unused)) +static __inline__ __attribute__((unused)) char *utoa(unsigned long in) { utoa_r(in, itoa_buffer); @@ -367,7 +359,7 @@ int u64toh_r(uint64_t in, char *buffer) /* converts uint64_t <in> to an hex string using the static itoa_buffer and * returns the pointer to that string. */ -static inline __attribute__((unused)) +static __inline__ __attribute__((unused)) char *u64toh(uint64_t in) { u64toh_r(in, itoa_buffer); @@ -429,7 +421,7 @@ int i64toa_r(int64_t in, char *buffer) /* converts int64_t <in> to a string using the static itoa_buffer and returns * the pointer to that string. */ -static inline __attribute__((unused)) +static __inline__ __attribute__((unused)) char *i64toa(int64_t in) { i64toa_r(in, itoa_buffer); @@ -439,7 +431,7 @@ char *i64toa(int64_t in) /* converts uint64_t <in> to a string using the static itoa_buffer and returns * the pointer to that string. */ -static inline __attribute__((unused)) +static __inline__ __attribute__((unused)) char *u64toa(uint64_t in) { u64toa_r(in, itoa_buffer); diff --git a/tools/include/nolibc/string.h b/tools/include/nolibc/string.h index fffdaf6ff467..0c2e06c7c477 100644 --- a/tools/include/nolibc/string.h +++ b/tools/include/nolibc/string.h @@ -90,7 +90,7 @@ void *memset(void *dst, int b, size_t len) while (len--) { /* prevent gcc from recognizing memset() here */ - asm volatile(""); + __asm__ volatile(""); *(p++) = b; } return dst; @@ -139,7 +139,7 @@ size_t strlen(const char *str) size_t len; for (len = 0; str[len]; len++) - asm(""); + __asm__(""); return len; } diff --git a/tools/include/nolibc/sys.h b/tools/include/nolibc/sys.h index 5d624dc63a42..fdb6bd6c0e2f 100644 --- a/tools/include/nolibc/sys.h +++ b/tools/include/nolibc/sys.h @@ -12,21 +12,38 @@ /* system includes */ #include <asm/unistd.h> -#include <asm/signal.h> // for SIGCHLD +#include <asm/signal.h> /* for SIGCHLD */ #include <asm/ioctls.h> #include <asm/mman.h> #include <linux/fs.h> #include <linux/loop.h> #include <linux/time.h> #include <linux/auxvec.h> -#include <linux/fcntl.h> // for O_* and AT_* -#include <linux/stat.h> // for statx() +#include <linux/fcntl.h> /* for O_* and AT_* */ +#include <linux/stat.h> /* for statx() */ +#include <linux/prctl.h> #include "arch.h" #include "errno.h" #include "types.h" +/* Syscall return helper: takes the syscall value in argument and checks for an + * error in it. This may only be used with signed returns (int or long), but + * not with pointers. An error is any value < 0. When an error is encountered, + * -ret is set into errno and -1 is returned. Otherwise the returned value is + * passed as-is with its type preserved. + */ + +#define __sysret(arg) \ +({ \ + __typeof__(arg) __sysret_arg = (arg); \ + (__sysret_arg < 0) /* error ? */ \ + ? (({ SET_ERRNO(-__sysret_arg); }), -1) /* ret -1 with errno = -arg */ \ + : __sysret_arg; /* return original value */ \ +}) + + /* Functions in this file only describe syscalls. They're declared static so * that the compiler usually decides to inline them while still being allowed * to pass a pointer to one of their instances. Each syscall exists in two @@ -76,10 +93,10 @@ int brk(void *addr) static __attribute__((unused)) void *sbrk(intptr_t inc) { - void *ret; - /* first call to find current end */ - if ((ret = sys_brk(0)) && (sys_brk(ret + inc) == ret + inc)) + void *ret = sys_brk(0); + + if (ret && sys_brk(ret + inc) == ret + inc) return ret + inc; SET_ERRNO(ENOMEM); @@ -100,13 +117,7 @@ int sys_chdir(const char *path) static __attribute__((unused)) int chdir(const char *path) { - int ret = sys_chdir(path); - - if (ret < 0) { - SET_ERRNO(-ret); - ret = -1; - } - return ret; + return __sysret(sys_chdir(path)); } @@ -122,20 +133,14 @@ int sys_chmod(const char *path, mode_t mode) #elif defined(__NR_chmod) return my_syscall2(__NR_chmod, path, mode); #else -#error Neither __NR_fchmodat nor __NR_chmod defined, cannot implement sys_chmod() + return -ENOSYS; #endif } static __attribute__((unused)) int chmod(const char *path, mode_t mode) { - int ret = sys_chmod(path, mode); - - if (ret < 0) { - SET_ERRNO(-ret); - ret = -1; - } - return ret; + return __sysret(sys_chmod(path, mode)); } @@ -151,20 +156,14 @@ int sys_chown(const char *path, uid_t owner, gid_t group) #elif defined(__NR_chown) return my_syscall3(__NR_chown, path, owner, group); #else -#error Neither __NR_fchownat nor __NR_chown defined, cannot implement sys_chown() + return -ENOSYS; #endif } static __attribute__((unused)) int chown(const char *path, uid_t owner, gid_t group) { - int ret = sys_chown(path, owner, group); - - if (ret < 0) { - SET_ERRNO(-ret); - ret = -1; - } - return ret; + return __sysret(sys_chown(path, owner, group)); } @@ -181,13 +180,7 @@ int sys_chroot(const char *path) static __attribute__((unused)) int chroot(const char *path) { - int ret = sys_chroot(path); - - if (ret < 0) { - SET_ERRNO(-ret); - ret = -1; - } - return ret; + return __sysret(sys_chroot(path)); } @@ -204,13 +197,7 @@ int sys_close(int fd) static __attribute__((unused)) int close(int fd) { - int ret = sys_close(fd); - - if (ret < 0) { - SET_ERRNO(-ret); - ret = -1; - } - return ret; + return __sysret(sys_close(fd)); } @@ -227,13 +214,7 @@ int sys_dup(int fd) static __attribute__((unused)) int dup(int fd) { - int ret = sys_dup(fd); - - if (ret < 0) { - SET_ERRNO(-ret); - ret = -1; - } - return ret; + return __sysret(sys_dup(fd)); } @@ -249,20 +230,14 @@ int sys_dup2(int old, int new) #elif defined(__NR_dup2) return my_syscall2(__NR_dup2, old, new); #else -#error Neither __NR_dup3 nor __NR_dup2 defined, cannot implement sys_dup2() + return -ENOSYS; #endif } static __attribute__((unused)) int dup2(int old, int new) { - int ret = sys_dup2(old, new); - - if (ret < 0) { - SET_ERRNO(-ret); - ret = -1; - } - return ret; + return __sysret(sys_dup2(old, new)); } @@ -280,13 +255,7 @@ int sys_dup3(int old, int new, int flags) static __attribute__((unused)) int dup3(int old, int new, int flags) { - int ret = sys_dup3(old, new, flags); - - if (ret < 0) { - SET_ERRNO(-ret); - ret = -1; - } - return ret; + return __sysret(sys_dup3(old, new, flags)); } #endif @@ -304,13 +273,7 @@ int sys_execve(const char *filename, char *const argv[], char *const envp[]) static __attribute__((unused)) int execve(const char *filename, char *const argv[], char *const envp[]) { - int ret = sys_execve(filename, argv, envp); - - if (ret < 0) { - SET_ERRNO(-ret); - ret = -1; - } - return ret; + return __sysret(sys_execve(filename, argv, envp)); } @@ -322,7 +285,7 @@ static __attribute__((noreturn,unused)) void sys_exit(int status) { my_syscall1(__NR_exit, status & 255); - while(1); // shut the "noreturn" warnings. + while(1); /* shut the "noreturn" warnings. */ } static __attribute__((noreturn,unused)) @@ -336,6 +299,7 @@ void exit(int status) * pid_t fork(void); */ +#ifndef sys_fork static __attribute__((unused)) pid_t sys_fork(void) { @@ -348,20 +312,15 @@ pid_t sys_fork(void) #elif defined(__NR_fork) return my_syscall0(__NR_fork); #else -#error Neither __NR_clone nor __NR_fork defined, cannot implement sys_fork() + return -ENOSYS; #endif } +#endif static __attribute__((unused)) pid_t fork(void) { - pid_t ret = sys_fork(); - - if (ret < 0) { - SET_ERRNO(-ret); - ret = -1; - } - return ret; + return __sysret(sys_fork()); } @@ -378,13 +337,7 @@ int sys_fsync(int fd) static __attribute__((unused)) int fsync(int fd) { - int ret = sys_fsync(fd); - - if (ret < 0) { - SET_ERRNO(-ret); - ret = -1; - } - return ret; + return __sysret(sys_fsync(fd)); } @@ -401,13 +354,7 @@ int sys_getdents64(int fd, struct linux_dirent64 *dirp, int count) static __attribute__((unused)) int getdents64(int fd, struct linux_dirent64 *dirp, int count) { - int ret = sys_getdents64(fd, dirp, count); - - if (ret < 0) { - SET_ERRNO(-ret); - ret = -1; - } - return ret; + return __sysret(sys_getdents64(fd, dirp, count)); } @@ -445,13 +392,7 @@ pid_t sys_getpgid(pid_t pid) static __attribute__((unused)) pid_t getpgid(pid_t pid) { - pid_t ret = sys_getpgid(pid); - - if (ret < 0) { - SET_ERRNO(-ret); - ret = -1; - } - return ret; + return __sysret(sys_getpgid(pid)); } @@ -525,21 +466,13 @@ pid_t gettid(void) static unsigned long getauxval(unsigned long key); /* - * long getpagesize(void); + * int getpagesize(void); */ static __attribute__((unused)) -long getpagesize(void) +int getpagesize(void) { - long ret; - - ret = getauxval(AT_PAGESZ); - if (!ret) { - SET_ERRNO(ENOENT); - return -1; - } - - return ret; + return __sysret((int)getauxval(AT_PAGESZ) ?: -ENOENT); } @@ -550,19 +483,17 @@ long getpagesize(void) static __attribute__((unused)) int sys_gettimeofday(struct timeval *tv, struct timezone *tz) { +#ifdef __NR_gettimeofday return my_syscall2(__NR_gettimeofday, tv, tz); +#else + return -ENOSYS; +#endif } static __attribute__((unused)) int gettimeofday(struct timeval *tv, struct timezone *tz) { - int ret = sys_gettimeofday(tv, tz); - - if (ret < 0) { - SET_ERRNO(-ret); - ret = -1; - } - return ret; + return __sysret(sys_gettimeofday(tv, tz)); } @@ -600,13 +531,7 @@ int sys_ioctl(int fd, unsigned long req, void *value) static __attribute__((unused)) int ioctl(int fd, unsigned long req, void *value) { - int ret = sys_ioctl(fd, req, value); - - if (ret < 0) { - SET_ERRNO(-ret); - ret = -1; - } - return ret; + return __sysret(sys_ioctl(fd, req, value)); } /* @@ -622,13 +547,7 @@ int sys_kill(pid_t pid, int signal) static __attribute__((unused)) int kill(pid_t pid, int signal) { - int ret = sys_kill(pid, signal); - - if (ret < 0) { - SET_ERRNO(-ret); - ret = -1; - } - return ret; + return __sysret(sys_kill(pid, signal)); } @@ -644,20 +563,14 @@ int sys_link(const char *old, const char *new) #elif defined(__NR_link) return my_syscall2(__NR_link, old, new); #else -#error Neither __NR_linkat nor __NR_link defined, cannot implement sys_link() + return -ENOSYS; #endif } static __attribute__((unused)) int link(const char *old, const char *new) { - int ret = sys_link(old, new); - - if (ret < 0) { - SET_ERRNO(-ret); - ret = -1; - } - return ret; + return __sysret(sys_link(old, new)); } @@ -668,19 +581,17 @@ int link(const char *old, const char *new) static __attribute__((unused)) off_t sys_lseek(int fd, off_t offset, int whence) { +#ifdef __NR_lseek return my_syscall3(__NR_lseek, fd, offset, whence); +#else + return -ENOSYS; +#endif } static __attribute__((unused)) off_t lseek(int fd, off_t offset, int whence) { - off_t ret = sys_lseek(fd, offset, whence); - - if (ret < 0) { - SET_ERRNO(-ret); - ret = -1; - } - return ret; + return __sysret(sys_lseek(fd, offset, whence)); } @@ -696,20 +607,36 @@ int sys_mkdir(const char *path, mode_t mode) #elif defined(__NR_mkdir) return my_syscall2(__NR_mkdir, path, mode); #else -#error Neither __NR_mkdirat nor __NR_mkdir defined, cannot implement sys_mkdir() + return -ENOSYS; #endif } static __attribute__((unused)) int mkdir(const char *path, mode_t mode) { - int ret = sys_mkdir(path, mode); + return __sysret(sys_mkdir(path, mode)); +} - if (ret < 0) { - SET_ERRNO(-ret); - ret = -1; - } - return ret; +/* + * int rmdir(const char *path); + */ + +static __attribute__((unused)) +int sys_rmdir(const char *path) +{ +#ifdef __NR_rmdir + return my_syscall1(__NR_rmdir, path); +#elif defined(__NR_unlinkat) + return my_syscall3(__NR_unlinkat, AT_FDCWD, path, AT_REMOVEDIR); +#else + return -ENOSYS; +#endif +} + +static __attribute__((unused)) +int rmdir(const char *path) +{ + return __sysret(sys_rmdir(path)); } @@ -725,42 +652,21 @@ long sys_mknod(const char *path, mode_t mode, dev_t dev) #elif defined(__NR_mknod) return my_syscall3(__NR_mknod, path, mode, dev); #else -#error Neither __NR_mknodat nor __NR_mknod defined, cannot implement sys_mknod() + return -ENOSYS; #endif } static __attribute__((unused)) int mknod(const char *path, mode_t mode, dev_t dev) { - int ret = sys_mknod(path, mode, dev); - - if (ret < 0) { - SET_ERRNO(-ret); - ret = -1; - } - return ret; + return __sysret(sys_mknod(path, mode, dev)); } -#ifndef MAP_SHARED -#define MAP_SHARED 0x01 /* Share changes */ -#define MAP_PRIVATE 0x02 /* Changes are private */ -#define MAP_SHARED_VALIDATE 0x03 /* share + validate extension flags */ -#endif - -#ifndef MAP_FAILED -#define MAP_FAILED ((void *)-1) -#endif - #ifndef sys_mmap static __attribute__((unused)) void *sys_mmap(void *addr, size_t length, int prot, int flags, int fd, off_t offset) { -#ifndef my_syscall6 - /* Function not implemented. */ - return (void *)-ENOSYS; -#else - int n; #if defined(__NR_mmap2) @@ -771,10 +677,14 @@ void *sys_mmap(void *addr, size_t length, int prot, int flags, int fd, #endif return (void *)my_syscall6(n, addr, length, prot, flags, fd, offset); -#endif } #endif +/* Note that on Linux, MAP_FAILED is -1 so we can use the generic __sysret() + * which returns -1 upon error and still satisfy user land that checks for + * MAP_FAILED. + */ + static __attribute__((unused)) void *mmap(void *addr, size_t length, int prot, int flags, int fd, off_t offset) { @@ -796,13 +706,7 @@ int sys_munmap(void *addr, size_t length) static __attribute__((unused)) int munmap(void *addr, size_t length) { - int ret = sys_munmap(addr, length); - - if (ret < 0) { - SET_ERRNO(-ret); - ret = -1; - } - return ret; + return __sysret(sys_munmap(addr, length)); } /* @@ -822,13 +726,7 @@ int mount(const char *src, const char *tgt, const char *fst, unsigned long flags, const void *data) { - int ret = sys_mount(src, tgt, fst, flags, data); - - if (ret < 0) { - SET_ERRNO(-ret); - ret = -1; - } - return ret; + return __sysret(sys_mount(src, tgt, fst, flags, data)); } @@ -844,7 +742,7 @@ int sys_open(const char *path, int flags, mode_t mode) #elif defined(__NR_open) return my_syscall3(__NR_open, path, flags, mode); #else -#error Neither __NR_openat nor __NR_open defined, cannot implement sys_open() + return -ENOSYS; #endif } @@ -852,23 +750,60 @@ static __attribute__((unused)) int open(const char *path, int flags, ...) { mode_t mode = 0; - int ret; if (flags & O_CREAT) { va_list args; va_start(args, flags); - mode = va_arg(args, mode_t); + mode = va_arg(args, int); va_end(args); } - ret = sys_open(path, flags, mode); + return __sysret(sys_open(path, flags, mode)); +} - if (ret < 0) { - SET_ERRNO(-ret); - ret = -1; - } - return ret; + +/* + * int pipe2(int pipefd[2], int flags); + * int pipe(int pipefd[2]); + */ + +static __attribute__((unused)) +int sys_pipe2(int pipefd[2], int flags) +{ + return my_syscall2(__NR_pipe2, pipefd, flags); +} + +static __attribute__((unused)) +int pipe2(int pipefd[2], int flags) +{ + return __sysret(sys_pipe2(pipefd, flags)); +} + +static __attribute__((unused)) +int pipe(int pipefd[2]) +{ + return pipe2(pipefd, 0); +} + + +/* + * int prctl(int option, unsigned long arg2, unsigned long arg3, + * unsigned long arg4, unsigned long arg5); + */ + +static __attribute__((unused)) +int sys_prctl(int option, unsigned long arg2, unsigned long arg3, + unsigned long arg4, unsigned long arg5) +{ + return my_syscall5(__NR_prctl, option, arg2, arg3, arg4, arg5); +} + +static __attribute__((unused)) +int prctl(int option, unsigned long arg2, unsigned long arg3, + unsigned long arg4, unsigned long arg5) +{ + return __sysret(sys_prctl(option, arg2, arg3, arg4, arg5)); } @@ -885,13 +820,7 @@ int sys_pivot_root(const char *new, const char *old) static __attribute__((unused)) int pivot_root(const char *new, const char *old) { - int ret = sys_pivot_root(new, old); - - if (ret < 0) { - SET_ERRNO(-ret); - ret = -1; - } - return ret; + return __sysret(sys_pivot_root(new, old)); } @@ -909,24 +838,18 @@ int sys_poll(struct pollfd *fds, int nfds, int timeout) t.tv_sec = timeout / 1000; t.tv_nsec = (timeout % 1000) * 1000000; } - return my_syscall4(__NR_ppoll, fds, nfds, (timeout >= 0) ? &t : NULL, NULL); + return my_syscall5(__NR_ppoll, fds, nfds, (timeout >= 0) ? &t : NULL, NULL, 0); #elif defined(__NR_poll) return my_syscall3(__NR_poll, fds, nfds, timeout); #else -#error Neither __NR_ppoll nor __NR_poll defined, cannot implement sys_poll() + return -ENOSYS; #endif } static __attribute__((unused)) int poll(struct pollfd *fds, int nfds, int timeout) { - int ret = sys_poll(fds, nfds, timeout); - - if (ret < 0) { - SET_ERRNO(-ret); - ret = -1; - } - return ret; + return __sysret(sys_poll(fds, nfds, timeout)); } @@ -943,13 +866,7 @@ ssize_t sys_read(int fd, void *buf, size_t count) static __attribute__((unused)) ssize_t read(int fd, void *buf, size_t count) { - ssize_t ret = sys_read(fd, buf, count); - - if (ret < 0) { - SET_ERRNO(-ret); - ret = -1; - } - return ret; + return __sysret(sys_read(fd, buf, count)); } @@ -967,13 +884,7 @@ ssize_t sys_reboot(int magic1, int magic2, int cmd, void *arg) static __attribute__((unused)) int reboot(int cmd) { - int ret = sys_reboot(LINUX_REBOOT_MAGIC1, LINUX_REBOOT_MAGIC2, cmd, 0); - - if (ret < 0) { - SET_ERRNO(-ret); - ret = -1; - } - return ret; + return __sysret(sys_reboot(LINUX_REBOOT_MAGIC1, LINUX_REBOOT_MAGIC2, cmd, 0)); } @@ -990,13 +901,7 @@ int sys_sched_yield(void) static __attribute__((unused)) int sched_yield(void) { - int ret = sys_sched_yield(); - - if (ret < 0) { - SET_ERRNO(-ret); - ret = -1; - } - return ret; + return __sysret(sys_sched_yield()); } @@ -1029,20 +934,14 @@ int sys_select(int nfds, fd_set *rfds, fd_set *wfds, fd_set *efds, struct timeva #endif return my_syscall5(__NR__newselect, nfds, rfds, wfds, efds, timeout); #else -#error None of __NR_select, __NR_pselect6, nor __NR__newselect defined, cannot implement sys_select() + return -ENOSYS; #endif } static __attribute__((unused)) int select(int nfds, fd_set *rfds, fd_set *wfds, fd_set *efds, struct timeval *timeout) { - int ret = sys_select(nfds, rfds, wfds, efds, timeout); - - if (ret < 0) { - SET_ERRNO(-ret); - ret = -1; - } - return ret; + return __sysret(sys_select(nfds, rfds, wfds, efds, timeout)); } @@ -1059,13 +958,7 @@ int sys_setpgid(pid_t pid, pid_t pgid) static __attribute__((unused)) int setpgid(pid_t pid, pid_t pgid) { - int ret = sys_setpgid(pid, pgid); - - if (ret < 0) { - SET_ERRNO(-ret); - ret = -1; - } - return ret; + return __sysret(sys_setpgid(pid, pgid)); } @@ -1082,116 +975,63 @@ pid_t sys_setsid(void) static __attribute__((unused)) pid_t setsid(void) { - pid_t ret = sys_setsid(); - - if (ret < 0) { - SET_ERRNO(-ret); - ret = -1; - } - return ret; + return __sysret(sys_setsid()); } -#if defined(__NR_statx) /* * int statx(int fd, const char *path, int flags, unsigned int mask, struct statx *buf); + * int stat(const char *path, struct stat *buf); */ static __attribute__((unused)) int sys_statx(int fd, const char *path, int flags, unsigned int mask, struct statx *buf) { +#ifdef __NR_statx return my_syscall5(__NR_statx, fd, path, flags, mask, buf); +#else + return -ENOSYS; +#endif } static __attribute__((unused)) int statx(int fd, const char *path, int flags, unsigned int mask, struct statx *buf) { - int ret = sys_statx(fd, path, flags, mask, buf); - - if (ret < 0) { - SET_ERRNO(-ret); - ret = -1; - } - return ret; + return __sysret(sys_statx(fd, path, flags, mask, buf)); } -#endif -/* - * int stat(const char *path, struct stat *buf); - * Warning: the struct stat's layout is arch-dependent. - */ -#if defined(__NR_statx) && !defined(__NR_newfstatat) && !defined(__NR_stat) -/* - * Maybe we can just use statx() when available for all architectures? - */ static __attribute__((unused)) -int sys_stat(const char *path, struct stat *buf) +int stat(const char *path, struct stat *buf) { struct statx statx; long ret; - ret = sys_statx(AT_FDCWD, path, AT_NO_AUTOMOUNT, STATX_BASIC_STATS, &statx); - buf->st_dev = ((statx.stx_dev_minor & 0xff) - | (statx.stx_dev_major << 8) - | ((statx.stx_dev_minor & ~0xff) << 12)); - buf->st_ino = statx.stx_ino; - buf->st_mode = statx.stx_mode; - buf->st_nlink = statx.stx_nlink; - buf->st_uid = statx.stx_uid; - buf->st_gid = statx.stx_gid; - buf->st_rdev = ((statx.stx_rdev_minor & 0xff) - | (statx.stx_rdev_major << 8) - | ((statx.stx_rdev_minor & ~0xff) << 12)); - buf->st_size = statx.stx_size; - buf->st_blksize = statx.stx_blksize; - buf->st_blocks = statx.stx_blocks; - buf->st_atime = statx.stx_atime.tv_sec; - buf->st_mtime = statx.stx_mtime.tv_sec; - buf->st_ctime = statx.stx_ctime.tv_sec; - return ret; -} -#else -static __attribute__((unused)) -int sys_stat(const char *path, struct stat *buf) -{ - struct sys_stat_struct stat; - long ret; - -#ifdef __NR_newfstatat - /* only solution for arm64 */ - ret = my_syscall4(__NR_newfstatat, AT_FDCWD, path, &stat, 0); -#elif defined(__NR_stat) - ret = my_syscall2(__NR_stat, path, &stat); -#else -#error Neither __NR_newfstatat nor __NR_stat defined, cannot implement sys_stat() -#endif - buf->st_dev = stat.st_dev; - buf->st_ino = stat.st_ino; - buf->st_mode = stat.st_mode; - buf->st_nlink = stat.st_nlink; - buf->st_uid = stat.st_uid; - buf->st_gid = stat.st_gid; - buf->st_rdev = stat.st_rdev; - buf->st_size = stat.st_size; - buf->st_blksize = stat.st_blksize; - buf->st_blocks = stat.st_blocks; - buf->st_atime = stat.st_atime; - buf->st_mtime = stat.st_mtime; - buf->st_ctime = stat.st_ctime; - return ret; -} -#endif - -static __attribute__((unused)) -int stat(const char *path, struct stat *buf) -{ - int ret = sys_stat(path, buf); + ret = __sysret(sys_statx(AT_FDCWD, path, AT_NO_AUTOMOUNT, STATX_BASIC_STATS, &statx)); + if (ret == -1) + return ret; + + buf->st_dev = ((statx.stx_dev_minor & 0xff) + | (statx.stx_dev_major << 8) + | ((statx.stx_dev_minor & ~0xff) << 12)); + buf->st_ino = statx.stx_ino; + buf->st_mode = statx.stx_mode; + buf->st_nlink = statx.stx_nlink; + buf->st_uid = statx.stx_uid; + buf->st_gid = statx.stx_gid; + buf->st_rdev = ((statx.stx_rdev_minor & 0xff) + | (statx.stx_rdev_major << 8) + | ((statx.stx_rdev_minor & ~0xff) << 12)); + buf->st_size = statx.stx_size; + buf->st_blksize = statx.stx_blksize; + buf->st_blocks = statx.stx_blocks; + buf->st_atim.tv_sec = statx.stx_atime.tv_sec; + buf->st_atim.tv_nsec = statx.stx_atime.tv_nsec; + buf->st_mtim.tv_sec = statx.stx_mtime.tv_sec; + buf->st_mtim.tv_nsec = statx.stx_mtime.tv_nsec; + buf->st_ctim.tv_sec = statx.stx_ctime.tv_sec; + buf->st_ctim.tv_nsec = statx.stx_ctime.tv_nsec; - if (ret < 0) { - SET_ERRNO(-ret); - ret = -1; - } - return ret; + return 0; } @@ -1207,20 +1047,14 @@ int sys_symlink(const char *old, const char *new) #elif defined(__NR_symlink) return my_syscall2(__NR_symlink, old, new); #else -#error Neither __NR_symlinkat nor __NR_symlink defined, cannot implement sys_symlink() + return -ENOSYS; #endif } static __attribute__((unused)) int symlink(const char *old, const char *new) { - int ret = sys_symlink(old, new); - - if (ret < 0) { - SET_ERRNO(-ret); - ret = -1; - } - return ret; + return __sysret(sys_symlink(old, new)); } @@ -1254,13 +1088,7 @@ int sys_umount2(const char *path, int flags) static __attribute__((unused)) int umount2(const char *path, int flags) { - int ret = sys_umount2(path, flags); - - if (ret < 0) { - SET_ERRNO(-ret); - ret = -1; - } - return ret; + return __sysret(sys_umount2(path, flags)); } @@ -1276,20 +1104,14 @@ int sys_unlink(const char *path) #elif defined(__NR_unlink) return my_syscall1(__NR_unlink, path); #else -#error Neither __NR_unlinkat nor __NR_unlink defined, cannot implement sys_unlink() + return -ENOSYS; #endif } static __attribute__((unused)) int unlink(const char *path) { - int ret = sys_unlink(path); - - if (ret < 0) { - SET_ERRNO(-ret); - ret = -1; - } - return ret; + return __sysret(sys_unlink(path)); } @@ -1302,44 +1124,30 @@ int unlink(const char *path) static __attribute__((unused)) pid_t sys_wait4(pid_t pid, int *status, int options, struct rusage *rusage) { +#ifdef __NR_wait4 return my_syscall4(__NR_wait4, pid, status, options, rusage); +#else + return -ENOSYS; +#endif } static __attribute__((unused)) pid_t wait(int *status) { - pid_t ret = sys_wait4(-1, status, 0, NULL); - - if (ret < 0) { - SET_ERRNO(-ret); - ret = -1; - } - return ret; + return __sysret(sys_wait4(-1, status, 0, NULL)); } static __attribute__((unused)) pid_t wait4(pid_t pid, int *status, int options, struct rusage *rusage) { - pid_t ret = sys_wait4(pid, status, options, rusage); - - if (ret < 0) { - SET_ERRNO(-ret); - ret = -1; - } - return ret; + return __sysret(sys_wait4(pid, status, options, rusage)); } static __attribute__((unused)) pid_t waitpid(pid_t pid, int *status, int options) { - pid_t ret = sys_wait4(pid, status, options, NULL); - - if (ret < 0) { - SET_ERRNO(-ret); - ret = -1; - } - return ret; + return __sysret(sys_wait4(pid, status, options, NULL)); } @@ -1356,13 +1164,24 @@ ssize_t sys_write(int fd, const void *buf, size_t count) static __attribute__((unused)) ssize_t write(int fd, const void *buf, size_t count) { - ssize_t ret = sys_write(fd, buf, count); + return __sysret(sys_write(fd, buf, count)); +} - if (ret < 0) { - SET_ERRNO(-ret); - ret = -1; - } - return ret; + +/* + * int memfd_create(const char *name, unsigned int flags); + */ + +static __attribute__((unused)) +int sys_memfd_create(const char *name, unsigned int flags) +{ + return my_syscall2(__NR_memfd_create, name, flags); +} + +static __attribute__((unused)) +int memfd_create(const char *name, unsigned int flags) +{ + return __sysret(sys_memfd_create(name, flags)); } /* make sure to include all global symbols */ diff --git a/tools/include/nolibc/types.h b/tools/include/nolibc/types.h index aedd7d9e3f64..8cfc4c860fa4 100644 --- a/tools/include/nolibc/types.h +++ b/tools/include/nolibc/types.h @@ -8,13 +8,15 @@ #define _NOLIBC_TYPES_H #include "std.h" -#include <linux/time.h> +#include <linux/mman.h> +#include <linux/reboot.h> /* for LINUX_REBOOT_* */ #include <linux/stat.h> +#include <linux/time.h> /* Only the generic macros and types may be defined here. The arch-specific - * ones such as the O_RDONLY and related macros used by fcntl() and open(), or - * the layout of sys_stat_struct must not be defined here. + * ones such as the O_RDONLY and related macros used by fcntl() and open() + * must not be defined here. */ /* stat flags (WARNING, octal here). We need to check for an existing @@ -81,18 +83,24 @@ #define MAXPATHLEN (PATH_MAX) #endif +/* flags for mmap */ +#ifndef MAP_FAILED +#define MAP_FAILED ((void *)-1) +#endif + /* whence values for lseek() */ #define SEEK_SET 0 #define SEEK_CUR 1 #define SEEK_END 2 -/* cmd for reboot() */ -#define LINUX_REBOOT_MAGIC1 0xfee1dead -#define LINUX_REBOOT_MAGIC2 0x28121969 -#define LINUX_REBOOT_CMD_HALT 0xcdef0123 -#define LINUX_REBOOT_CMD_POWER_OFF 0x4321fedc -#define LINUX_REBOOT_CMD_RESTART 0x01234567 -#define LINUX_REBOOT_CMD_SW_SUSPEND 0xd000fce2 +/* flags for reboot */ +#define RB_AUTOBOOT LINUX_REBOOT_CMD_RESTART +#define RB_HALT_SYSTEM LINUX_REBOOT_CMD_HALT +#define RB_ENABLE_CAD LINUX_REBOOT_CMD_CAD_ON +#define RB_DISABLE_CAD LINUX_REBOOT_CMD_CAD_OFF +#define RB_POWER_OFF LINUX_REBOOT_CMD_POWER_OFF +#define RB_SW_SUSPEND LINUX_REBOOT_CMD_SW_SUSPEND +#define RB_KEXEC LINUX_REBOOT_CMD_KEXEC /* Macros used on waitpid()'s return status */ #define WEXITSTATUS(status) (((status) & 0xff00) >> 8) @@ -206,9 +214,9 @@ struct stat { off_t st_size; /* total size, in bytes */ blksize_t st_blksize; /* blocksize for file system I/O */ blkcnt_t st_blocks; /* number of 512B blocks allocated */ - time_t st_atime; /* time of last access */ - time_t st_mtime; /* time of last modification */ - time_t st_ctime; /* time of last status change */ + union { time_t st_atime; struct timespec st_atim; }; /* time of last access */ + union { time_t st_mtime; struct timespec st_mtim; }; /* time of last modification */ + union { time_t st_ctime; struct timespec st_ctim; }; /* time of last status change */ }; /* WARNING, it only deals with the 4096 first majors and 256 first minors */ diff --git a/tools/include/nolibc/unistd.h b/tools/include/nolibc/unistd.h index ac7d53d986cd..e38f3660c051 100644 --- a/tools/include/nolibc/unistd.h +++ b/tools/include/nolibc/unistd.h @@ -56,6 +56,12 @@ int tcsetpgrp(int fd, pid_t pid) return ioctl(fd, TIOCSPGRP, &pid); } +#define __syscall_narg(_0, _1, _2, _3, _4, _5, _6, N, ...) N +#define _syscall_narg(...) __syscall_narg(__VA_ARGS__, 6, 5, 4, 3, 2, 1, 0) +#define _syscall(N, ...) __sysret(my_syscall##N(__VA_ARGS__)) +#define _syscall_n(N, ...) _syscall(N, __VA_ARGS__) +#define syscall(...) _syscall_n(_syscall_narg(__VA_ARGS__), ##__VA_ARGS__) + /* make sure to include all global symbols */ #include "nolibc.h" diff --git a/tools/include/uapi/asm-generic/bitsperlong.h b/tools/include/uapi/asm-generic/bitsperlong.h index 23e6c416b85f..352cb81947b8 100644 --- a/tools/include/uapi/asm-generic/bitsperlong.h +++ b/tools/include/uapi/asm-generic/bitsperlong.h @@ -1,6 +1,18 @@ +/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ #ifndef _UAPI__ASM_GENERIC_BITS_PER_LONG #define _UAPI__ASM_GENERIC_BITS_PER_LONG +#ifndef __BITS_PER_LONG +/* + * In order to keep safe and avoid regression, only unify uapi + * bitsperlong.h for some archs which are using newer toolchains + * that have the definitions of __CHAR_BIT__ and __SIZEOF_LONG__. + * See the following link for more info: + * https://lore.kernel.org/linux-arch/[email protected]/ + */ +#if defined(__CHAR_BIT__) && defined(__SIZEOF_LONG__) +#define __BITS_PER_LONG (__CHAR_BIT__ * __SIZEOF_LONG__) +#else /* * There seems to be no way of detecting this automatically from user * space, so 64 bit architectures should override this in their @@ -8,8 +20,8 @@ * both 32 and 64 bit user space must not rely on CONFIG_64BIT * to decide it, but rather check a compiler provided macro. */ -#ifndef __BITS_PER_LONG #define __BITS_PER_LONG 32 #endif +#endif #endif /* _UAPI__ASM_GENERIC_BITS_PER_LONG */ diff --git a/tools/include/uapi/asm-generic/socket.h b/tools/include/uapi/asm-generic/socket.h index 8756df13be50..54d9c8bf7c55 100644 --- a/tools/include/uapi/asm-generic/socket.h +++ b/tools/include/uapi/asm-generic/socket.h @@ -121,6 +121,9 @@ #define SO_RCVMARK 75 +#define SO_PASSPIDFD 76 +#define SO_PEERPIDFD 77 + #if !defined(__KERNEL__) #if __BITS_PER_LONG == 64 || (defined(__x86_64__) && defined(__ILP32__)) diff --git a/tools/include/uapi/asm-generic/unistd.h b/tools/include/uapi/asm-generic/unistd.h index 45fa180cc56a..abe087c53b4b 100644 --- a/tools/include/uapi/asm-generic/unistd.h +++ b/tools/include/uapi/asm-generic/unistd.h @@ -38,12 +38,12 @@ __SYSCALL(__NR_io_destroy, sys_io_destroy) __SC_COMP(__NR_io_submit, sys_io_submit, compat_sys_io_submit) #define __NR_io_cancel 3 __SYSCALL(__NR_io_cancel, sys_io_cancel) + #if defined(__ARCH_WANT_TIME32_SYSCALLS) || __BITS_PER_LONG != 32 #define __NR_io_getevents 4 __SC_3264(__NR_io_getevents, sys_io_getevents_time32, sys_io_getevents) #endif -/* fs/xattr.c */ #define __NR_setxattr 5 __SYSCALL(__NR_setxattr, sys_setxattr) #define __NR_lsetxattr 6 @@ -68,58 +68,38 @@ __SYSCALL(__NR_removexattr, sys_removexattr) __SYSCALL(__NR_lremovexattr, sys_lremovexattr) #define __NR_fremovexattr 16 __SYSCALL(__NR_fremovexattr, sys_fremovexattr) - -/* fs/dcache.c */ #define __NR_getcwd 17 __SYSCALL(__NR_getcwd, sys_getcwd) - -/* fs/cookies.c */ #define __NR_lookup_dcookie 18 __SC_COMP(__NR_lookup_dcookie, sys_lookup_dcookie, compat_sys_lookup_dcookie) - -/* fs/eventfd.c */ #define __NR_eventfd2 19 __SYSCALL(__NR_eventfd2, sys_eventfd2) - -/* fs/eventpoll.c */ #define __NR_epoll_create1 20 __SYSCALL(__NR_epoll_create1, sys_epoll_create1) #define __NR_epoll_ctl 21 __SYSCALL(__NR_epoll_ctl, sys_epoll_ctl) #define __NR_epoll_pwait 22 __SC_COMP(__NR_epoll_pwait, sys_epoll_pwait, compat_sys_epoll_pwait) - -/* fs/fcntl.c */ #define __NR_dup 23 __SYSCALL(__NR_dup, sys_dup) #define __NR_dup3 24 __SYSCALL(__NR_dup3, sys_dup3) #define __NR3264_fcntl 25 __SC_COMP_3264(__NR3264_fcntl, sys_fcntl64, sys_fcntl, compat_sys_fcntl64) - -/* fs/inotify_user.c */ #define __NR_inotify_init1 26 __SYSCALL(__NR_inotify_init1, sys_inotify_init1) #define __NR_inotify_add_watch 27 __SYSCALL(__NR_inotify_add_watch, sys_inotify_add_watch) #define __NR_inotify_rm_watch 28 __SYSCALL(__NR_inotify_rm_watch, sys_inotify_rm_watch) - -/* fs/ioctl.c */ #define __NR_ioctl 29 __SC_COMP(__NR_ioctl, sys_ioctl, compat_sys_ioctl) - -/* fs/ioprio.c */ #define __NR_ioprio_set 30 __SYSCALL(__NR_ioprio_set, sys_ioprio_set) #define __NR_ioprio_get 31 __SYSCALL(__NR_ioprio_get, sys_ioprio_get) - -/* fs/locks.c */ #define __NR_flock 32 __SYSCALL(__NR_flock, sys_flock) - -/* fs/namei.c */ #define __NR_mknodat 33 __SYSCALL(__NR_mknodat, sys_mknodat) #define __NR_mkdirat 34 @@ -130,25 +110,21 @@ __SYSCALL(__NR_unlinkat, sys_unlinkat) __SYSCALL(__NR_symlinkat, sys_symlinkat) #define __NR_linkat 37 __SYSCALL(__NR_linkat, sys_linkat) + #ifdef __ARCH_WANT_RENAMEAT /* renameat is superseded with flags by renameat2 */ #define __NR_renameat 38 __SYSCALL(__NR_renameat, sys_renameat) #endif /* __ARCH_WANT_RENAMEAT */ -/* fs/namespace.c */ #define __NR_umount2 39 __SYSCALL(__NR_umount2, sys_umount) #define __NR_mount 40 __SYSCALL(__NR_mount, sys_mount) #define __NR_pivot_root 41 __SYSCALL(__NR_pivot_root, sys_pivot_root) - -/* fs/nfsctl.c */ #define __NR_nfsservctl 42 __SYSCALL(__NR_nfsservctl, sys_ni_syscall) - -/* fs/open.c */ #define __NR3264_statfs 43 __SC_COMP_3264(__NR3264_statfs, sys_statfs64, sys_statfs, \ compat_sys_statfs64) @@ -161,7 +137,6 @@ __SC_COMP_3264(__NR3264_truncate, sys_truncate64, sys_truncate, \ #define __NR3264_ftruncate 46 __SC_COMP_3264(__NR3264_ftruncate, sys_ftruncate64, sys_ftruncate, \ compat_sys_ftruncate64) - #define __NR_fallocate 47 __SC_COMP(__NR_fallocate, sys_fallocate, compat_sys_fallocate) #define __NR_faccessat 48 @@ -186,20 +161,12 @@ __SYSCALL(__NR_openat, sys_openat) __SYSCALL(__NR_close, sys_close) #define __NR_vhangup 58 __SYSCALL(__NR_vhangup, sys_vhangup) - -/* fs/pipe.c */ #define __NR_pipe2 59 __SYSCALL(__NR_pipe2, sys_pipe2) - -/* fs/quota.c */ #define __NR_quotactl 60 __SYSCALL(__NR_quotactl, sys_quotactl) - -/* fs/readdir.c */ #define __NR_getdents64 61 __SYSCALL(__NR_getdents64, sys_getdents64) - -/* fs/read_write.c */ #define __NR3264_lseek 62 __SC_3264(__NR3264_lseek, sys_llseek, sys_lseek) #define __NR_read 63 @@ -218,12 +185,9 @@ __SC_COMP(__NR_pwrite64, sys_pwrite64, compat_sys_pwrite64) __SC_COMP(__NR_preadv, sys_preadv, compat_sys_preadv) #define __NR_pwritev 70 __SC_COMP(__NR_pwritev, sys_pwritev, compat_sys_pwritev) - -/* fs/sendfile.c */ #define __NR3264_sendfile 71 __SYSCALL(__NR3264_sendfile, sys_sendfile64) -/* fs/select.c */ #if defined(__ARCH_WANT_TIME32_SYSCALLS) || __BITS_PER_LONG != 32 #define __NR_pselect6 72 __SC_COMP_3264(__NR_pselect6, sys_pselect6_time32, sys_pselect6, compat_sys_pselect6_time32) @@ -231,21 +195,17 @@ __SC_COMP_3264(__NR_pselect6, sys_pselect6_time32, sys_pselect6, compat_sys_psel __SC_COMP_3264(__NR_ppoll, sys_ppoll_time32, sys_ppoll, compat_sys_ppoll_time32) #endif -/* fs/signalfd.c */ #define __NR_signalfd4 74 __SC_COMP(__NR_signalfd4, sys_signalfd4, compat_sys_signalfd4) - -/* fs/splice.c */ #define __NR_vmsplice 75 __SYSCALL(__NR_vmsplice, sys_vmsplice) #define __NR_splice 76 __SYSCALL(__NR_splice, sys_splice) #define __NR_tee 77 __SYSCALL(__NR_tee, sys_tee) - -/* fs/stat.c */ #define __NR_readlinkat 78 __SYSCALL(__NR_readlinkat, sys_readlinkat) + #if defined(__ARCH_WANT_NEW_STAT) || defined(__ARCH_WANT_STAT64) #define __NR3264_fstatat 79 __SC_3264(__NR3264_fstatat, sys_fstatat64, sys_newfstatat) @@ -253,13 +213,13 @@ __SC_3264(__NR3264_fstatat, sys_fstatat64, sys_newfstatat) __SC_3264(__NR3264_fstat, sys_fstat64, sys_newfstat) #endif -/* fs/sync.c */ #define __NR_sync 81 __SYSCALL(__NR_sync, sys_sync) #define __NR_fsync 82 __SYSCALL(__NR_fsync, sys_fsync) #define __NR_fdatasync 83 __SYSCALL(__NR_fdatasync, sys_fdatasync) + #ifdef __ARCH_WANT_SYNC_FILE_RANGE2 #define __NR_sync_file_range2 84 __SC_COMP(__NR_sync_file_range2, sys_sync_file_range2, \ @@ -270,9 +230,9 @@ __SC_COMP(__NR_sync_file_range, sys_sync_file_range, \ compat_sys_sync_file_range) #endif -/* fs/timerfd.c */ #define __NR_timerfd_create 85 __SYSCALL(__NR_timerfd_create, sys_timerfd_create) + #if defined(__ARCH_WANT_TIME32_SYSCALLS) || __BITS_PER_LONG != 32 #define __NR_timerfd_settime 86 __SC_3264(__NR_timerfd_settime, sys_timerfd_settime32, \ @@ -282,45 +242,35 @@ __SC_3264(__NR_timerfd_gettime, sys_timerfd_gettime32, \ sys_timerfd_gettime) #endif -/* fs/utimes.c */ #if defined(__ARCH_WANT_TIME32_SYSCALLS) || __BITS_PER_LONG != 32 #define __NR_utimensat 88 __SC_3264(__NR_utimensat, sys_utimensat_time32, sys_utimensat) #endif -/* kernel/acct.c */ #define __NR_acct 89 __SYSCALL(__NR_acct, sys_acct) - -/* kernel/capability.c */ #define __NR_capget 90 __SYSCALL(__NR_capget, sys_capget) #define __NR_capset 91 __SYSCALL(__NR_capset, sys_capset) - -/* kernel/exec_domain.c */ #define __NR_personality 92 __SYSCALL(__NR_personality, sys_personality) - -/* kernel/exit.c */ #define __NR_exit 93 __SYSCALL(__NR_exit, sys_exit) #define __NR_exit_group 94 __SYSCALL(__NR_exit_group, sys_exit_group) #define __NR_waitid 95 __SC_COMP(__NR_waitid, sys_waitid, compat_sys_waitid) - -/* kernel/fork.c */ #define __NR_set_tid_address 96 __SYSCALL(__NR_set_tid_address, sys_set_tid_address) #define __NR_unshare 97 __SYSCALL(__NR_unshare, sys_unshare) -/* kernel/futex.c */ #if defined(__ARCH_WANT_TIME32_SYSCALLS) || __BITS_PER_LONG != 32 #define __NR_futex 98 __SC_3264(__NR_futex, sys_futex_time32, sys_futex) #endif + #define __NR_set_robust_list 99 __SC_COMP(__NR_set_robust_list, sys_set_robust_list, \ compat_sys_set_robust_list) @@ -328,43 +278,40 @@ __SC_COMP(__NR_set_robust_list, sys_set_robust_list, \ __SC_COMP(__NR_get_robust_list, sys_get_robust_list, \ compat_sys_get_robust_list) -/* kernel/hrtimer.c */ #if defined(__ARCH_WANT_TIME32_SYSCALLS) || __BITS_PER_LONG != 32 #define __NR_nanosleep 101 __SC_3264(__NR_nanosleep, sys_nanosleep_time32, sys_nanosleep) #endif -/* kernel/itimer.c */ #define __NR_getitimer 102 __SC_COMP(__NR_getitimer, sys_getitimer, compat_sys_getitimer) #define __NR_setitimer 103 __SC_COMP(__NR_setitimer, sys_setitimer, compat_sys_setitimer) - -/* kernel/kexec.c */ #define __NR_kexec_load 104 __SC_COMP(__NR_kexec_load, sys_kexec_load, compat_sys_kexec_load) - -/* kernel/module.c */ #define __NR_init_module 105 __SYSCALL(__NR_init_module, sys_init_module) #define __NR_delete_module 106 __SYSCALL(__NR_delete_module, sys_delete_module) - -/* kernel/posix-timers.c */ #define __NR_timer_create 107 __SC_COMP(__NR_timer_create, sys_timer_create, compat_sys_timer_create) + #if defined(__ARCH_WANT_TIME32_SYSCALLS) || __BITS_PER_LONG != 32 #define __NR_timer_gettime 108 __SC_3264(__NR_timer_gettime, sys_timer_gettime32, sys_timer_gettime) #endif + #define __NR_timer_getoverrun 109 __SYSCALL(__NR_timer_getoverrun, sys_timer_getoverrun) + #if defined(__ARCH_WANT_TIME32_SYSCALLS) || __BITS_PER_LONG != 32 #define __NR_timer_settime 110 __SC_3264(__NR_timer_settime, sys_timer_settime32, sys_timer_settime) #endif + #define __NR_timer_delete 111 __SYSCALL(__NR_timer_delete, sys_timer_delete) + #if defined(__ARCH_WANT_TIME32_SYSCALLS) || __BITS_PER_LONG != 32 #define __NR_clock_settime 112 __SC_3264(__NR_clock_settime, sys_clock_settime32, sys_clock_settime) @@ -377,15 +324,10 @@ __SC_3264(__NR_clock_nanosleep, sys_clock_nanosleep_time32, \ sys_clock_nanosleep) #endif -/* kernel/printk.c */ #define __NR_syslog 116 __SYSCALL(__NR_syslog, sys_syslog) - -/* kernel/ptrace.c */ #define __NR_ptrace 117 __SC_COMP(__NR_ptrace, sys_ptrace, compat_sys_ptrace) - -/* kernel/sched/core.c */ #define __NR_sched_setparam 118 __SYSCALL(__NR_sched_setparam, sys_sched_setparam) #define __NR_sched_setscheduler 119 @@ -406,13 +348,13 @@ __SYSCALL(__NR_sched_yield, sys_sched_yield) __SYSCALL(__NR_sched_get_priority_max, sys_sched_get_priority_max) #define __NR_sched_get_priority_min 126 __SYSCALL(__NR_sched_get_priority_min, sys_sched_get_priority_min) + #if defined(__ARCH_WANT_TIME32_SYSCALLS) || __BITS_PER_LONG != 32 #define __NR_sched_rr_get_interval 127 __SC_3264(__NR_sched_rr_get_interval, sys_sched_rr_get_interval_time32, \ sys_sched_rr_get_interval) #endif -/* kernel/signal.c */ #define __NR_restart_syscall 128 __SYSCALL(__NR_restart_syscall, sys_restart_syscall) #define __NR_kill 129 @@ -431,18 +373,18 @@ __SC_COMP(__NR_rt_sigaction, sys_rt_sigaction, compat_sys_rt_sigaction) __SC_COMP(__NR_rt_sigprocmask, sys_rt_sigprocmask, compat_sys_rt_sigprocmask) #define __NR_rt_sigpending 136 __SC_COMP(__NR_rt_sigpending, sys_rt_sigpending, compat_sys_rt_sigpending) + #if defined(__ARCH_WANT_TIME32_SYSCALLS) || __BITS_PER_LONG != 32 #define __NR_rt_sigtimedwait 137 __SC_COMP_3264(__NR_rt_sigtimedwait, sys_rt_sigtimedwait_time32, \ sys_rt_sigtimedwait, compat_sys_rt_sigtimedwait_time32) #endif + #define __NR_rt_sigqueueinfo 138 __SC_COMP(__NR_rt_sigqueueinfo, sys_rt_sigqueueinfo, \ compat_sys_rt_sigqueueinfo) #define __NR_rt_sigreturn 139 __SC_COMP(__NR_rt_sigreturn, sys_rt_sigreturn, compat_sys_rt_sigreturn) - -/* kernel/sys.c */ #define __NR_setpriority 140 __SYSCALL(__NR_setpriority, sys_setpriority) #define __NR_getpriority 141 @@ -507,7 +449,6 @@ __SYSCALL(__NR_prctl, sys_prctl) #define __NR_getcpu 168 __SYSCALL(__NR_getcpu, sys_getcpu) -/* kernel/time.c */ #if defined(__ARCH_WANT_TIME32_SYSCALLS) || __BITS_PER_LONG != 32 #define __NR_gettimeofday 169 __SC_COMP(__NR_gettimeofday, sys_gettimeofday, compat_sys_gettimeofday) @@ -517,7 +458,6 @@ __SC_COMP(__NR_settimeofday, sys_settimeofday, compat_sys_settimeofday) __SC_3264(__NR_adjtimex, sys_adjtimex_time32, sys_adjtimex) #endif -/* kernel/sys.c */ #define __NR_getpid 172 __SYSCALL(__NR_getpid, sys_getpid) #define __NR_getppid 173 @@ -534,12 +474,11 @@ __SYSCALL(__NR_getegid, sys_getegid) __SYSCALL(__NR_gettid, sys_gettid) #define __NR_sysinfo 179 __SC_COMP(__NR_sysinfo, sys_sysinfo, compat_sys_sysinfo) - -/* ipc/mqueue.c */ #define __NR_mq_open 180 __SC_COMP(__NR_mq_open, sys_mq_open, compat_sys_mq_open) #define __NR_mq_unlink 181 __SYSCALL(__NR_mq_unlink, sys_mq_unlink) + #if defined(__ARCH_WANT_TIME32_SYSCALLS) || __BITS_PER_LONG != 32 #define __NR_mq_timedsend 182 __SC_3264(__NR_mq_timedsend, sys_mq_timedsend_time32, sys_mq_timedsend) @@ -547,12 +486,11 @@ __SC_3264(__NR_mq_timedsend, sys_mq_timedsend_time32, sys_mq_timedsend) __SC_3264(__NR_mq_timedreceive, sys_mq_timedreceive_time32, \ sys_mq_timedreceive) #endif + #define __NR_mq_notify 184 __SC_COMP(__NR_mq_notify, sys_mq_notify, compat_sys_mq_notify) #define __NR_mq_getsetattr 185 __SC_COMP(__NR_mq_getsetattr, sys_mq_getsetattr, compat_sys_mq_getsetattr) - -/* ipc/msg.c */ #define __NR_msgget 186 __SYSCALL(__NR_msgget, sys_msgget) #define __NR_msgctl 187 @@ -561,20 +499,18 @@ __SC_COMP(__NR_msgctl, sys_msgctl, compat_sys_msgctl) __SC_COMP(__NR_msgrcv, sys_msgrcv, compat_sys_msgrcv) #define __NR_msgsnd 189 __SC_COMP(__NR_msgsnd, sys_msgsnd, compat_sys_msgsnd) - -/* ipc/sem.c */ #define __NR_semget 190 __SYSCALL(__NR_semget, sys_semget) #define __NR_semctl 191 __SC_COMP(__NR_semctl, sys_semctl, compat_sys_semctl) + #if defined(__ARCH_WANT_TIME32_SYSCALLS) || __BITS_PER_LONG != 32 #define __NR_semtimedop 192 __SC_3264(__NR_semtimedop, sys_semtimedop_time32, sys_semtimedop) #endif + #define __NR_semop 193 __SYSCALL(__NR_semop, sys_semop) - -/* ipc/shm.c */ #define __NR_shmget 194 __SYSCALL(__NR_shmget, sys_shmget) #define __NR_shmctl 195 @@ -583,8 +519,6 @@ __SC_COMP(__NR_shmctl, sys_shmctl, compat_sys_shmctl) __SC_COMP(__NR_shmat, sys_shmat, compat_sys_shmat) #define __NR_shmdt 197 __SYSCALL(__NR_shmdt, sys_shmdt) - -/* net/socket.c */ #define __NR_socket 198 __SYSCALL(__NR_socket, sys_socket) #define __NR_socketpair 199 @@ -615,40 +549,30 @@ __SYSCALL(__NR_shutdown, sys_shutdown) __SC_COMP(__NR_sendmsg, sys_sendmsg, compat_sys_sendmsg) #define __NR_recvmsg 212 __SC_COMP(__NR_recvmsg, sys_recvmsg, compat_sys_recvmsg) - -/* mm/filemap.c */ #define __NR_readahead 213 __SC_COMP(__NR_readahead, sys_readahead, compat_sys_readahead) - -/* mm/nommu.c, also with MMU */ #define __NR_brk 214 __SYSCALL(__NR_brk, sys_brk) #define __NR_munmap 215 __SYSCALL(__NR_munmap, sys_munmap) #define __NR_mremap 216 __SYSCALL(__NR_mremap, sys_mremap) - -/* security/keys/keyctl.c */ #define __NR_add_key 217 __SYSCALL(__NR_add_key, sys_add_key) #define __NR_request_key 218 __SYSCALL(__NR_request_key, sys_request_key) #define __NR_keyctl 219 __SC_COMP(__NR_keyctl, sys_keyctl, compat_sys_keyctl) - -/* arch/example/kernel/sys_example.c */ #define __NR_clone 220 __SYSCALL(__NR_clone, sys_clone) #define __NR_execve 221 __SC_COMP(__NR_execve, sys_execve, compat_sys_execve) - #define __NR3264_mmap 222 __SC_3264(__NR3264_mmap, sys_mmap2, sys_mmap) -/* mm/fadvise.c */ #define __NR3264_fadvise64 223 __SC_COMP(__NR3264_fadvise64, sys_fadvise64_64, compat_sys_fadvise64_64) -/* mm/, CONFIG_MMU only */ +/* CONFIG_MMU only */ #ifndef __ARCH_NOMMU #define __NR_swapon 224 __SYSCALL(__NR_swapon, sys_swapon) @@ -691,6 +615,7 @@ __SC_COMP(__NR_rt_tgsigqueueinfo, sys_rt_tgsigqueueinfo, \ __SYSCALL(__NR_perf_event_open, sys_perf_event_open) #define __NR_accept4 242 __SYSCALL(__NR_accept4, sys_accept4) + #if defined(__ARCH_WANT_TIME32_SYSCALLS) || __BITS_PER_LONG != 32 #define __NR_recvmmsg 243 __SC_COMP_3264(__NR_recvmmsg, sys_recvmmsg_time32, sys_recvmmsg, compat_sys_recvmmsg_time32) @@ -706,6 +631,7 @@ __SC_COMP_3264(__NR_recvmmsg, sys_recvmmsg_time32, sys_recvmmsg, compat_sys_recv #define __NR_wait4 260 __SC_COMP(__NR_wait4, sys_wait4, compat_sys_wait4) #endif + #define __NR_prlimit64 261 __SYSCALL(__NR_prlimit64, sys_prlimit64) #define __NR_fanotify_init 262 @@ -716,10 +642,12 @@ __SYSCALL(__NR_fanotify_mark, sys_fanotify_mark) __SYSCALL(__NR_name_to_handle_at, sys_name_to_handle_at) #define __NR_open_by_handle_at 265 __SYSCALL(__NR_open_by_handle_at, sys_open_by_handle_at) + #if defined(__ARCH_WANT_TIME32_SYSCALLS) || __BITS_PER_LONG != 32 #define __NR_clock_adjtime 266 __SC_3264(__NR_clock_adjtime, sys_clock_adjtime32, sys_clock_adjtime) #endif + #define __NR_syncfs 267 __SYSCALL(__NR_syncfs, sys_syncfs) #define __NR_setns 268 @@ -770,15 +698,19 @@ __SYSCALL(__NR_pkey_alloc, sys_pkey_alloc) __SYSCALL(__NR_pkey_free, sys_pkey_free) #define __NR_statx 291 __SYSCALL(__NR_statx, sys_statx) + #if defined(__ARCH_WANT_TIME32_SYSCALLS) || __BITS_PER_LONG != 32 #define __NR_io_pgetevents 292 __SC_COMP_3264(__NR_io_pgetevents, sys_io_pgetevents_time32, sys_io_pgetevents, compat_sys_io_pgetevents) #endif + #define __NR_rseq 293 __SYSCALL(__NR_rseq, sys_rseq) #define __NR_kexec_file_load 294 __SYSCALL(__NR_kexec_file_load, sys_kexec_file_load) + /* 295 through 402 are unassigned to sync up with generic numbers, don't use */ + #if defined(__SYSCALL_COMPAT) || __BITS_PER_LONG == 32 #define __NR_clock_gettime64 403 __SYSCALL(__NR_clock_gettime64, sys_clock_gettime) @@ -844,13 +776,14 @@ __SYSCALL(__NR_fsmount, sys_fsmount) __SYSCALL(__NR_fspick, sys_fspick) #define __NR_pidfd_open 434 __SYSCALL(__NR_pidfd_open, sys_pidfd_open) + #ifdef __ARCH_WANT_SYS_CLONE3 #define __NR_clone3 435 __SYSCALL(__NR_clone3, sys_clone3) #endif + #define __NR_close_range 436 __SYSCALL(__NR_close_range, sys_close_range) - #define __NR_openat2 437 __SYSCALL(__NR_openat2, sys_openat2) #define __NR_pidfd_getfd 438 @@ -865,7 +798,6 @@ __SC_COMP(__NR_epoll_pwait2, sys_epoll_pwait2, compat_sys_epoll_pwait2) __SYSCALL(__NR_mount_setattr, sys_mount_setattr) #define __NR_quotactl_fd 443 __SYSCALL(__NR_quotactl_fd, sys_quotactl_fd) - #define __NR_landlock_create_ruleset 444 __SYSCALL(__NR_landlock_create_ruleset, sys_landlock_create_ruleset) #define __NR_landlock_add_rule 445 @@ -877,17 +809,22 @@ __SYSCALL(__NR_landlock_restrict_self, sys_landlock_restrict_self) #define __NR_memfd_secret 447 __SYSCALL(__NR_memfd_secret, sys_memfd_secret) #endif + #define __NR_process_mrelease 448 __SYSCALL(__NR_process_mrelease, sys_process_mrelease) - #define __NR_futex_waitv 449 __SYSCALL(__NR_futex_waitv, sys_futex_waitv) - #define __NR_set_mempolicy_home_node 450 __SYSCALL(__NR_set_mempolicy_home_node, sys_set_mempolicy_home_node) +#define __NR_cachestat 451 +__SYSCALL(__NR_cachestat, sys_cachestat) + +#define __NR_fchmodat2 452 +__SYSCALL(__NR_fchmodat2, sys_fchmodat2) + #undef __NR_syscalls -#define __NR_syscalls 451 +#define __NR_syscalls 453 /* * 32 bit systems traditionally used different diff --git a/tools/include/uapi/asm/bitsperlong.h b/tools/include/uapi/asm/bitsperlong.h index da5206517158..c65267afc341 100644 --- a/tools/include/uapi/asm/bitsperlong.h +++ b/tools/include/uapi/asm/bitsperlong.h @@ -1,8 +1,6 @@ /* SPDX-License-Identifier: GPL-2.0 */ #if defined(__i386__) || defined(__x86_64__) #include "../../../arch/x86/include/uapi/asm/bitsperlong.h" -#elif defined(__aarch64__) -#include "../../../arch/arm64/include/uapi/asm/bitsperlong.h" #elif defined(__powerpc__) #include "../../../arch/powerpc/include/uapi/asm/bitsperlong.h" #elif defined(__s390__) @@ -13,12 +11,8 @@ #include "../../../arch/mips/include/uapi/asm/bitsperlong.h" #elif defined(__ia64__) #include "../../../arch/ia64/include/uapi/asm/bitsperlong.h" -#elif defined(__riscv) -#include "../../../arch/riscv/include/uapi/asm/bitsperlong.h" #elif defined(__alpha__) #include "../../../arch/alpha/include/uapi/asm/bitsperlong.h" -#elif defined(__loongarch__) -#include "../../../arch/loongarch/include/uapi/asm/bitsperlong.h" #else #include <asm-generic/bitsperlong.h> #endif diff --git a/tools/include/uapi/drm/drm.h b/tools/include/uapi/drm/drm.h index a87bbbbca2d4..794c1d857677 100644 --- a/tools/include/uapi/drm/drm.h +++ b/tools/include/uapi/drm/drm.h @@ -673,8 +673,11 @@ struct drm_gem_open { * Bitfield of supported PRIME sharing capabilities. See &DRM_PRIME_CAP_IMPORT * and &DRM_PRIME_CAP_EXPORT. * - * PRIME buffers are exposed as dma-buf file descriptors. See - * Documentation/gpu/drm-mm.rst, section "PRIME Buffer Sharing". + * Starting from kernel version 6.6, both &DRM_PRIME_CAP_IMPORT and + * &DRM_PRIME_CAP_EXPORT are always advertised. + * + * PRIME buffers are exposed as dma-buf file descriptors. + * See :ref:`prime_buffer_sharing`. */ #define DRM_CAP_PRIME 0x5 /** @@ -682,6 +685,8 @@ struct drm_gem_open { * * If this bit is set in &DRM_CAP_PRIME, the driver supports importing PRIME * buffers via the &DRM_IOCTL_PRIME_FD_TO_HANDLE ioctl. + * + * Starting from kernel version 6.6, this bit is always set in &DRM_CAP_PRIME. */ #define DRM_PRIME_CAP_IMPORT 0x1 /** @@ -689,6 +694,8 @@ struct drm_gem_open { * * If this bit is set in &DRM_CAP_PRIME, the driver supports exporting PRIME * buffers via the &DRM_IOCTL_PRIME_HANDLE_TO_FD ioctl. + * + * Starting from kernel version 6.6, this bit is always set in &DRM_CAP_PRIME. */ #define DRM_PRIME_CAP_EXPORT 0x2 /** @@ -756,15 +763,14 @@ struct drm_gem_open { /** * DRM_CAP_SYNCOBJ * - * If set to 1, the driver supports sync objects. See - * Documentation/gpu/drm-mm.rst, section "DRM Sync Objects". + * If set to 1, the driver supports sync objects. See :ref:`drm_sync_objects`. */ #define DRM_CAP_SYNCOBJ 0x13 /** * DRM_CAP_SYNCOBJ_TIMELINE * * If set to 1, the driver supports timeline operations on sync objects. See - * Documentation/gpu/drm-mm.rst, section "DRM Sync Objects". + * :ref:`drm_sync_objects`. */ #define DRM_CAP_SYNCOBJ_TIMELINE 0x14 @@ -909,6 +915,27 @@ struct drm_syncobj_timeline_wait { __u32 pad; }; +/** + * struct drm_syncobj_eventfd + * @handle: syncobj handle. + * @flags: Zero to wait for the point to be signalled, or + * &DRM_SYNCOBJ_WAIT_FLAGS_WAIT_AVAILABLE to wait for a fence to be + * available for the point. + * @point: syncobj timeline point (set to zero for binary syncobjs). + * @fd: Existing eventfd to sent events to. + * @pad: Must be zero. + * + * Register an eventfd to be signalled by a syncobj. The eventfd counter will + * be incremented by one. + */ +struct drm_syncobj_eventfd { + __u32 handle; + __u32 flags; + __u64 point; + __s32 fd; + __u32 pad; +}; + struct drm_syncobj_array { __u64 handles; @@ -1169,6 +1196,8 @@ extern "C" { */ #define DRM_IOCTL_MODE_GETFB2 DRM_IOWR(0xCE, struct drm_mode_fb_cmd2) +#define DRM_IOCTL_SYNCOBJ_EVENTFD DRM_IOWR(0xCF, struct drm_syncobj_eventfd) + /* * Device specific ioctls should only be in their respective headers * The device specific ioctl range is from 0x40 to 0x9f. @@ -1180,25 +1209,50 @@ extern "C" { #define DRM_COMMAND_BASE 0x40 #define DRM_COMMAND_END 0xA0 -/* - * Header for events written back to userspace on the drm fd. The - * type defines the type of event, the length specifies the total - * length of the event (including the header), and user_data is - * typically a 64 bit value passed with the ioctl that triggered the - * event. A read on the drm fd will always only return complete - * events, that is, if for example the read buffer is 100 bytes, and - * there are two 64 byte events pending, only one will be returned. +/** + * struct drm_event - Header for DRM events + * @type: event type. + * @length: total number of payload bytes (including header). * - * Event types 0 - 0x7fffffff are generic drm events, 0x80000000 and - * up are chipset specific. + * This struct is a header for events written back to user-space on the DRM FD. + * A read on the DRM FD will always only return complete events: e.g. if the + * read buffer is 100 bytes large and there are two 64 byte events pending, + * only one will be returned. + * + * Event types 0 - 0x7fffffff are generic DRM events, 0x80000000 and + * up are chipset specific. Generic DRM events include &DRM_EVENT_VBLANK, + * &DRM_EVENT_FLIP_COMPLETE and &DRM_EVENT_CRTC_SEQUENCE. */ struct drm_event { __u32 type; __u32 length; }; +/** + * DRM_EVENT_VBLANK - vertical blanking event + * + * This event is sent in response to &DRM_IOCTL_WAIT_VBLANK with the + * &_DRM_VBLANK_EVENT flag set. + * + * The event payload is a struct drm_event_vblank. + */ #define DRM_EVENT_VBLANK 0x01 +/** + * DRM_EVENT_FLIP_COMPLETE - page-flip completion event + * + * This event is sent in response to an atomic commit or legacy page-flip with + * the &DRM_MODE_PAGE_FLIP_EVENT flag set. + * + * The event payload is a struct drm_event_vblank. + */ #define DRM_EVENT_FLIP_COMPLETE 0x02 +/** + * DRM_EVENT_CRTC_SEQUENCE - CRTC sequence event + * + * This event is sent in response to &DRM_IOCTL_CRTC_QUEUE_SEQUENCE. + * + * The event payload is a struct drm_event_crtc_sequence. + */ #define DRM_EVENT_CRTC_SEQUENCE 0x03 struct drm_event_vblank { diff --git a/tools/include/uapi/drm/i915_drm.h b/tools/include/uapi/drm/i915_drm.h index dba7c5a5b25e..7000e5910a1d 100644 --- a/tools/include/uapi/drm/i915_drm.h +++ b/tools/include/uapi/drm/i915_drm.h @@ -280,7 +280,16 @@ enum drm_i915_pmu_engine_sample { #define I915_PMU_ENGINE_SEMA(class, instance) \ __I915_PMU_ENGINE(class, instance, I915_SAMPLE_SEMA) -#define __I915_PMU_OTHER(x) (__I915_PMU_ENGINE(0xff, 0xff, 0xf) + 1 + (x)) +/* + * Top 4 bits of every non-engine counter are GT id. + */ +#define __I915_PMU_GT_SHIFT (60) + +#define ___I915_PMU_OTHER(gt, x) \ + (((__u64)__I915_PMU_ENGINE(0xff, 0xff, 0xf) + 1 + (x)) | \ + ((__u64)(gt) << __I915_PMU_GT_SHIFT)) + +#define __I915_PMU_OTHER(x) ___I915_PMU_OTHER(0, x) #define I915_PMU_ACTUAL_FREQUENCY __I915_PMU_OTHER(0) #define I915_PMU_REQUESTED_FREQUENCY __I915_PMU_OTHER(1) @@ -290,6 +299,12 @@ enum drm_i915_pmu_engine_sample { #define I915_PMU_LAST /* Deprecated - do not use */ I915_PMU_RC6_RESIDENCY +#define __I915_PMU_ACTUAL_FREQUENCY(gt) ___I915_PMU_OTHER(gt, 0) +#define __I915_PMU_REQUESTED_FREQUENCY(gt) ___I915_PMU_OTHER(gt, 1) +#define __I915_PMU_INTERRUPTS(gt) ___I915_PMU_OTHER(gt, 2) +#define __I915_PMU_RC6_RESIDENCY(gt) ___I915_PMU_OTHER(gt, 3) +#define __I915_PMU_SOFTWARE_GT_AWAKE_TIME(gt) ___I915_PMU_OTHER(gt, 4) + /* Each region is a minimum of 16k, and there are at most 255 of them. */ #define I915_NR_TEX_REGIONS 255 /* table size 2k - maximum due to use @@ -659,7 +674,8 @@ typedef struct drm_i915_irq_wait { * If the IOCTL is successful, the returned parameter will be set to one of the * following values: * * 0 if HuC firmware load is not complete, - * * 1 if HuC firmware is authenticated and running. + * * 1 if HuC firmware is loaded and fully authenticated, + * * 2 if HuC firmware is loaded and authenticated for clear media only */ #define I915_PARAM_HUC_STATUS 42 @@ -771,6 +787,25 @@ typedef struct drm_i915_irq_wait { */ #define I915_PARAM_OA_TIMESTAMP_FREQUENCY 57 +/* + * Query the status of PXP support in i915. + * + * The query can fail in the following scenarios with the listed error codes: + * -ENODEV = PXP support is not available on the GPU device or in the + * kernel due to missing component drivers or kernel configs. + * + * If the IOCTL is successful, the returned parameter will be set to one of + * the following values: + * 1 = PXP feature is supported and is ready for use. + * 2 = PXP feature is supported but should be ready soon (pending + * initialization of non-i915 system dependencies). + * + * NOTE: When param is supported (positive return values), user space should + * still refer to the GEM PXP context-creation UAPI header specs to be + * aware of possible failure due to system state machine at the time. + */ +#define I915_PARAM_PXP_STATUS 58 + /* Must be kept compact -- no holes and well documented */ /** @@ -2096,6 +2131,21 @@ struct drm_i915_gem_context_param { * * -ENODEV: feature not available * -EPERM: trying to mark a recoverable or not bannable context as protected + * -ENXIO: A dependency such as a component driver or firmware is not yet + * loaded so user space may need to attempt again. Depending on the + * device, this error may be reported if protected context creation is + * attempted very early after kernel start because the internal timeout + * waiting for such dependencies is not guaranteed to be larger than + * required (numbers differ depending on system and kernel config): + * - ADL/RPL: dependencies may take up to 3 seconds from kernel start + * while context creation internal timeout is 250 milisecs + * - MTL: dependencies may take up to 8 seconds from kernel start + * while context creation internal timeout is 250 milisecs + * NOTE: such dependencies happen once, so a subsequent call to create a + * protected context after a prior successful call will not experience + * such timeouts and will not return -ENXIO (unless the driver is reloaded, + * or, depending on the device, resumes from a suspended state). + * -EIO: The firmware did not succeed in creating the protected context. */ #define I915_CONTEXT_PARAM_PROTECTED_CONTENT 0xd /* Must be kept compact -- no holes and well documented */ @@ -3630,9 +3680,13 @@ struct drm_i915_gem_create_ext { * * For I915_GEM_CREATE_EXT_PROTECTED_CONTENT usage see * struct drm_i915_gem_create_ext_protected_content. + * + * For I915_GEM_CREATE_EXT_SET_PAT usage see + * struct drm_i915_gem_create_ext_set_pat. */ #define I915_GEM_CREATE_EXT_MEMORY_REGIONS 0 #define I915_GEM_CREATE_EXT_PROTECTED_CONTENT 1 +#define I915_GEM_CREATE_EXT_SET_PAT 2 __u64 extensions; }; @@ -3747,6 +3801,43 @@ struct drm_i915_gem_create_ext_protected_content { __u32 flags; }; +/** + * struct drm_i915_gem_create_ext_set_pat - The + * I915_GEM_CREATE_EXT_SET_PAT extension. + * + * If this extension is provided, the specified caching policy (PAT index) is + * applied to the buffer object. + * + * Below is an example on how to create an object with specific caching policy: + * + * .. code-block:: C + * + * struct drm_i915_gem_create_ext_set_pat set_pat_ext = { + * .base = { .name = I915_GEM_CREATE_EXT_SET_PAT }, + * .pat_index = 0, + * }; + * struct drm_i915_gem_create_ext create_ext = { + * .size = PAGE_SIZE, + * .extensions = (uintptr_t)&set_pat_ext, + * }; + * + * int err = ioctl(fd, DRM_IOCTL_I915_GEM_CREATE_EXT, &create_ext); + * if (err) ... + */ +struct drm_i915_gem_create_ext_set_pat { + /** @base: Extension link. See struct i915_user_extension. */ + struct i915_user_extension base; + /** + * @pat_index: PAT index to be set + * PAT index is a bit field in Page Table Entry to control caching + * behaviors for GPU accesses. The definition of PAT index is + * platform dependent and can be found in hardware specifications, + */ + __u32 pat_index; + /** @rsvd: reserved for future use */ + __u32 rsvd; +}; + /* ID of the protected content session managed by i915 when PXP is active */ #define I915_PROTECTED_CONTENT_DEFAULT_SESSION 0xf diff --git a/tools/include/uapi/linux/bpf.h b/tools/include/uapi/linux/bpf.h index c994ff5b157c..0448700890f7 100644 --- a/tools/include/uapi/linux/bpf.h +++ b/tools/include/uapi/linux/bpf.h @@ -19,6 +19,7 @@ /* ld/ldx fields */ #define BPF_DW 0x18 /* double word (64-bit) */ +#define BPF_MEMSX 0x80 /* load with sign extension */ #define BPF_ATOMIC 0xc0 /* atomic memory ops - op type in immediate */ #define BPF_XADD 0xc0 /* exclusive add - legacy name */ @@ -1036,6 +1037,9 @@ enum bpf_attach_type { BPF_LSM_CGROUP, BPF_STRUCT_OPS, BPF_NETFILTER, + BPF_TCX_INGRESS, + BPF_TCX_EGRESS, + BPF_TRACE_UPROBE_MULTI, __MAX_BPF_ATTACH_TYPE }; @@ -1053,10 +1057,21 @@ enum bpf_link_type { BPF_LINK_TYPE_KPROBE_MULTI = 8, BPF_LINK_TYPE_STRUCT_OPS = 9, BPF_LINK_TYPE_NETFILTER = 10, - + BPF_LINK_TYPE_TCX = 11, + BPF_LINK_TYPE_UPROBE_MULTI = 12, MAX_BPF_LINK_TYPE, }; +enum bpf_perf_event_type { + BPF_PERF_EVENT_UNSPEC = 0, + BPF_PERF_EVENT_UPROBE = 1, + BPF_PERF_EVENT_URETPROBE = 2, + BPF_PERF_EVENT_KPROBE = 3, + BPF_PERF_EVENT_KRETPROBE = 4, + BPF_PERF_EVENT_TRACEPOINT = 5, + BPF_PERF_EVENT_EVENT = 6, +}; + /* cgroup-bpf attach flags used in BPF_PROG_ATTACH command * * NONE(default): No further bpf programs allowed in the subtree. @@ -1103,7 +1118,12 @@ enum bpf_link_type { */ #define BPF_F_ALLOW_OVERRIDE (1U << 0) #define BPF_F_ALLOW_MULTI (1U << 1) +/* Generic attachment flags. */ #define BPF_F_REPLACE (1U << 2) +#define BPF_F_BEFORE (1U << 3) +#define BPF_F_AFTER (1U << 4) +#define BPF_F_ID (1U << 5) +#define BPF_F_LINK BPF_F_LINK /* 1 << 13 */ /* If BPF_F_STRICT_ALIGNMENT is used in BPF_PROG_LOAD command, the * verifier will perform strict alignment checking as if the kernel @@ -1168,7 +1188,21 @@ enum bpf_link_type { /* link_create.kprobe_multi.flags used in LINK_CREATE command for * BPF_TRACE_KPROBE_MULTI attach type to create return probe. */ -#define BPF_F_KPROBE_MULTI_RETURN (1U << 0) +enum { + BPF_F_KPROBE_MULTI_RETURN = (1U << 0) +}; + +/* link_create.uprobe_multi.flags used in LINK_CREATE command for + * BPF_TRACE_UPROBE_MULTI attach type to create return probe. + */ +enum { + BPF_F_UPROBE_MULTI_RETURN = (1U << 0) +}; + +/* link_create.netfilter.flags used in LINK_CREATE command for + * BPF_PROG_TYPE_NETFILTER to enable IP packet defragmentation. + */ +#define BPF_F_NETFILTER_IP_DEFRAG (1U << 0) /* When BPF ldimm64's insn[0].src_reg != 0 then this can have * the following extensions: @@ -1273,6 +1307,9 @@ enum { /* Create a map that will be registered/unregesitered by the backed bpf_link */ BPF_F_LINK = (1U << 13), + +/* Get path from provided FD in BPF_OBJ_PIN/BPF_OBJ_GET commands */ + BPF_F_PATH_FD = (1U << 14), }; /* Flags for BPF_PROG_QUERY. */ @@ -1421,17 +1458,29 @@ union bpf_attr { __aligned_u64 pathname; __u32 bpf_fd; __u32 file_flags; + /* Same as dirfd in openat() syscall; see openat(2) + * manpage for details of path FD and pathname semantics; + * path_fd should accompanied by BPF_F_PATH_FD flag set in + * file_flags field, otherwise it should be set to zero; + * if BPF_F_PATH_FD flag is not set, AT_FDCWD is assumed. + */ + __s32 path_fd; }; struct { /* anonymous struct used by BPF_PROG_ATTACH/DETACH commands */ - __u32 target_fd; /* container object to attach to */ - __u32 attach_bpf_fd; /* eBPF program to attach */ + union { + __u32 target_fd; /* target object to attach to or ... */ + __u32 target_ifindex; /* target ifindex */ + }; + __u32 attach_bpf_fd; __u32 attach_type; __u32 attach_flags; - __u32 replace_bpf_fd; /* previously attached eBPF - * program to replace if - * BPF_F_REPLACE is used - */ + __u32 replace_bpf_fd; + union { + __u32 relative_fd; + __u32 relative_id; + }; + __u64 expected_revision; }; struct { /* anonymous struct used by BPF_PROG_TEST_RUN command */ @@ -1477,16 +1526,26 @@ union bpf_attr { } info; struct { /* anonymous struct used by BPF_PROG_QUERY command */ - __u32 target_fd; /* container object to query */ + union { + __u32 target_fd; /* target object to query or ... */ + __u32 target_ifindex; /* target ifindex */ + }; __u32 attach_type; __u32 query_flags; __u32 attach_flags; __aligned_u64 prog_ids; - __u32 prog_cnt; + union { + __u32 prog_cnt; + __u32 count; + }; + __u32 :32; /* output: per-program attach_flags. * not allowed to be set during effective query. */ __aligned_u64 prog_attach_flags; + __aligned_u64 link_ids; + __aligned_u64 link_attach_flags; + __u64 revision; } query; struct { /* anonymous struct used by BPF_RAW_TRACEPOINT_OPEN command */ @@ -1529,13 +1588,13 @@ union bpf_attr { __u32 map_fd; /* struct_ops to attach */ }; union { - __u32 target_fd; /* object to attach to */ - __u32 target_ifindex; /* target ifindex */ + __u32 target_fd; /* target object to attach to or ... */ + __u32 target_ifindex; /* target ifindex */ }; __u32 attach_type; /* attach type */ __u32 flags; /* extra flags */ union { - __u32 target_btf_id; /* btf_id of target to attach to */ + __u32 target_btf_id; /* btf_id of target to attach to */ struct { __aligned_u64 iter_info; /* extra bpf_iter_link_info */ __u32 iter_info_len; /* iter_info length */ @@ -1569,6 +1628,22 @@ union bpf_attr { __s32 priority; __u32 flags; } netfilter; + struct { + union { + __u32 relative_fd; + __u32 relative_id; + }; + __u64 expected_revision; + } tcx; + struct { + __aligned_u64 path; + __aligned_u64 offsets; + __aligned_u64 ref_ctr_offsets; + __aligned_u64 cookies; + __u32 cnt; + __u32 flags; + __u32 pid; + } uprobe_multi; }; } link_create; @@ -1887,7 +1962,9 @@ union bpf_attr { * performed again, if the helper is used in combination with * direct packet access. * Return - * 0 on success, or a negative error in case of failure. + * 0 on success, or a negative error in case of failure. Positive + * error indicates a potential drop or congestion in the target + * device. The particular positive error codes are not defined. * * u64 bpf_get_current_pid_tgid(void) * Description @@ -3168,6 +3245,10 @@ union bpf_attr { * **BPF_FIB_LOOKUP_DIRECT** * Do a direct table lookup vs full lookup using FIB * rules. + * **BPF_FIB_LOOKUP_TBID** + * Used with BPF_FIB_LOOKUP_DIRECT. + * Use the routing table ID present in *params*->tbid + * for the fib lookup. * **BPF_FIB_LOOKUP_OUTPUT** * Perform lookup from an egress perspective (default is * ingress). @@ -4145,9 +4226,6 @@ union bpf_attr { * **-EOPNOTSUPP** if the operation is not supported, for example * a call from outside of TC ingress. * - * **-ESOCKTNOSUPPORT** if the socket type is not supported - * (reuseport). - * * long bpf_sk_assign(struct bpf_sk_lookup *ctx, struct bpf_sock *sk, u64 flags) * Description * Helper is overloaded depending on BPF program type. This @@ -5030,9 +5108,14 @@ union bpf_attr { * u64 bpf_get_func_ip(void *ctx) * Description * Get address of the traced function (for tracing and kprobe programs). + * + * When called for kprobe program attached as uprobe it returns + * probe address for both entry and return uprobe. + * * Return - * Address of the traced function. + * Address of the traced function for kprobe. * 0 for kprobes placed within the function (not at the entry). + * Address of the probe for uprobe and return uprobe. * * u64 bpf_get_attach_cookie(void *ctx) * Description @@ -6173,6 +6256,19 @@ struct bpf_sock_tuple { }; }; +/* (Simplified) user return codes for tcx prog type. + * A valid tcx program must return one of these defined values. All other + * return codes are reserved for future use. Must remain compatible with + * their TC_ACT_* counter-parts. For compatibility in behavior, unknown + * return codes are mapped to TCX_NEXT. + */ +enum tcx_action_base { + TCX_NEXT = -1, + TCX_PASS = 0, + TCX_DROP = 2, + TCX_REDIRECT = 7, +}; + struct bpf_xdp_sock { __u32 queue_id; }; @@ -6425,6 +6521,40 @@ struct bpf_link_info { __s32 priority; __u32 flags; } netfilter; + struct { + __aligned_u64 addrs; + __u32 count; /* in/out: kprobe_multi function count */ + __u32 flags; + } kprobe_multi; + struct { + __u32 type; /* enum bpf_perf_event_type */ + __u32 :32; + union { + struct { + __aligned_u64 file_name; /* in/out */ + __u32 name_len; + __u32 offset; /* offset from file_name */ + } uprobe; /* BPF_PERF_EVENT_UPROBE, BPF_PERF_EVENT_URETPROBE */ + struct { + __aligned_u64 func_name; /* in/out */ + __u32 name_len; + __u32 offset; /* offset from func_name */ + __u64 addr; + } kprobe; /* BPF_PERF_EVENT_KPROBE, BPF_PERF_EVENT_KRETPROBE */ + struct { + __aligned_u64 tp_name; /* in/out */ + __u32 name_len; + } tracepoint; /* BPF_PERF_EVENT_TRACEPOINT */ + struct { + __u64 config; + __u32 type; + } event; /* BPF_PERF_EVENT_EVENT */ + }; + } perf_event; + struct { + __u32 ifindex; + __u32 attach_type; + } tcx; }; } __attribute__((aligned(8))); @@ -6822,6 +6952,7 @@ enum { BPF_FIB_LOOKUP_DIRECT = (1U << 0), BPF_FIB_LOOKUP_OUTPUT = (1U << 1), BPF_FIB_LOOKUP_SKIP_NEIGH = (1U << 2), + BPF_FIB_LOOKUP_TBID = (1U << 3), }; enum { @@ -6882,9 +7013,19 @@ struct bpf_fib_lookup { __u32 ipv6_dst[4]; /* in6_addr; network order */ }; - /* output */ - __be16 h_vlan_proto; - __be16 h_vlan_TCI; + union { + struct { + /* output */ + __be16 h_vlan_proto; + __be16 h_vlan_TCI; + }; + /* input: when accompanied with the + * 'BPF_FIB_LOOKUP_DIRECT | BPF_FIB_LOOKUP_TBID` flags, a + * specific routing table to use for the fib lookup. + */ + __u32 tbid; + }; + __u8 smac[6]; /* ETH_ALEN */ __u8 dmac[6]; /* ETH_ALEN */ }; @@ -6987,6 +7128,7 @@ struct bpf_list_head { struct bpf_list_node { __u64 :64; __u64 :64; + __u64 :64; } __attribute__((aligned(8))); struct bpf_rb_root { @@ -6998,6 +7140,7 @@ struct bpf_rb_node { __u64 :64; __u64 :64; __u64 :64; + __u64 :64; } __attribute__((aligned(8))); struct bpf_refcount { diff --git a/tools/include/uapi/linux/fcntl.h b/tools/include/uapi/linux/fcntl.h index e8c07da58c9f..6c80f96049bd 100644 --- a/tools/include/uapi/linux/fcntl.h +++ b/tools/include/uapi/linux/fcntl.h @@ -112,4 +112,9 @@ #define AT_RECURSIVE 0x8000 /* Apply to the entire subtree */ +/* Flags for name_to_handle_at(2). We reuse AT_ flag space to save bits... */ +#define AT_HANDLE_FID AT_REMOVEDIR /* file handle is needed to + compare object identity and may not + be usable to open_by_handle_at(2) */ + #endif /* _UAPI_LINUX_FCNTL_H */ diff --git a/tools/include/uapi/linux/if_xdp.h b/tools/include/uapi/linux/if_xdp.h index a78a8096f4ce..73a47da885dc 100644 --- a/tools/include/uapi/linux/if_xdp.h +++ b/tools/include/uapi/linux/if_xdp.h @@ -25,6 +25,12 @@ * application. */ #define XDP_USE_NEED_WAKEUP (1 << 3) +/* By setting this option, userspace application indicates that it can + * handle multiple descriptors per packet thus enabling xsk core to split + * multi-buffer XDP frames into multiple Rx descriptors. Without this set + * such frames will be dropped by xsk. + */ +#define XDP_USE_SG (1 << 4) /* Flags for xsk_umem_config flags */ #define XDP_UMEM_UNALIGNED_CHUNK_FLAG (1 << 0) @@ -106,6 +112,9 @@ struct xdp_desc { __u32 options; }; +/* Flag indicating packet constitutes of multiple buffers*/ +#define XDP_PKT_CONTD (1 << 0) + /* UMEM descriptor is __u64 */ #endif /* _LINUX_IF_XDP_H */ diff --git a/tools/include/uapi/linux/kvm.h b/tools/include/uapi/linux/kvm.h index 737318b1c1d9..f089ab290978 100644 --- a/tools/include/uapi/linux/kvm.h +++ b/tools/include/uapi/linux/kvm.h @@ -1190,6 +1190,8 @@ struct kvm_ppc_resize_hpt { #define KVM_CAP_DIRTY_LOG_RING_WITH_BITMAP 225 #define KVM_CAP_PMU_EVENT_MASKED_EVENTS 226 #define KVM_CAP_COUNTER_OFFSET 227 +#define KVM_CAP_ARM_EAGER_SPLIT_CHUNK_SIZE 228 +#define KVM_CAP_ARM_SUPPORTED_BLOCK_SIZES 229 #ifdef KVM_CAP_IRQ_ROUTING @@ -1442,6 +1444,8 @@ enum kvm_device_type { #define KVM_DEV_TYPE_XIVE KVM_DEV_TYPE_XIVE KVM_DEV_TYPE_ARM_PV_TIME, #define KVM_DEV_TYPE_ARM_PV_TIME KVM_DEV_TYPE_ARM_PV_TIME + KVM_DEV_TYPE_RISCV_AIA, +#define KVM_DEV_TYPE_RISCV_AIA KVM_DEV_TYPE_RISCV_AIA KVM_DEV_TYPE_MAX, }; @@ -1613,7 +1617,7 @@ struct kvm_s390_ucas_mapping { #define KVM_GET_DEBUGREGS _IOR(KVMIO, 0xa1, struct kvm_debugregs) #define KVM_SET_DEBUGREGS _IOW(KVMIO, 0xa2, struct kvm_debugregs) /* - * vcpu version available with KVM_ENABLE_CAP + * vcpu version available with KVM_CAP_ENABLE_CAP * vm version available with KVM_CAP_ENABLE_CAP_VM */ #define KVM_ENABLE_CAP _IOW(KVMIO, 0xa3, struct kvm_enable_cap) diff --git a/tools/include/uapi/linux/mman.h b/tools/include/uapi/linux/mman.h index f55bc680b5b0..a246e11988d5 100644 --- a/tools/include/uapi/linux/mman.h +++ b/tools/include/uapi/linux/mman.h @@ -4,6 +4,7 @@ #include <asm/mman.h> #include <asm-generic/hugetlb_encode.h> +#include <linux/types.h> #define MREMAP_MAYMOVE 1 #define MREMAP_FIXED 2 @@ -41,4 +42,17 @@ #define MAP_HUGE_2GB HUGETLB_FLAG_ENCODE_2GB #define MAP_HUGE_16GB HUGETLB_FLAG_ENCODE_16GB +struct cachestat_range { + __u64 off; + __u64 len; +}; + +struct cachestat { + __u64 nr_cache; + __u64 nr_dirty; + __u64 nr_writeback; + __u64 nr_evicted; + __u64 nr_recently_evicted; +}; + #endif /* _UAPI_LINUX_MMAN_H */ diff --git a/tools/include/uapi/linux/mount.h b/tools/include/uapi/linux/mount.h index 4d93967f8aea..8eb0d7b758d2 100644 --- a/tools/include/uapi/linux/mount.h +++ b/tools/include/uapi/linux/mount.h @@ -74,7 +74,8 @@ #define MOVE_MOUNT_T_AUTOMOUNTS 0x00000020 /* Follow automounts on to path */ #define MOVE_MOUNT_T_EMPTY_PATH 0x00000040 /* Empty to path permitted */ #define MOVE_MOUNT_SET_GROUP 0x00000100 /* Set sharing group instead */ -#define MOVE_MOUNT__MASK 0x00000177 +#define MOVE_MOUNT_BENEATH 0x00000200 /* Mount beneath top mount */ +#define MOVE_MOUNT__MASK 0x00000377 /* * fsopen() flags. diff --git a/tools/include/uapi/linux/netdev.h b/tools/include/uapi/linux/netdev.h index 639524b59930..c1634b95c223 100644 --- a/tools/include/uapi/linux/netdev.h +++ b/tools/include/uapi/linux/netdev.h @@ -11,7 +11,7 @@ /** * enum netdev_xdp_act - * @NETDEV_XDP_ACT_BASIC: XDP feautues set supported by all drivers + * @NETDEV_XDP_ACT_BASIC: XDP features set supported by all drivers * (XDP_ABORTED, XDP_DROP, XDP_PASS, XDP_TX) * @NETDEV_XDP_ACT_REDIRECT: The netdev supports XDP_REDIRECT * @NETDEV_XDP_ACT_NDO_XMIT: This feature informs if netdev implements @@ -34,6 +34,7 @@ enum netdev_xdp_act { NETDEV_XDP_ACT_RX_SG = 32, NETDEV_XDP_ACT_NDO_XMIT_SG = 64, + /* private: */ NETDEV_XDP_ACT_MASK = 127, }; @@ -41,6 +42,7 @@ enum { NETDEV_A_DEV_IFINDEX = 1, NETDEV_A_DEV_PAD, NETDEV_A_DEV_XDP_FEATURES, + NETDEV_A_DEV_XDP_ZC_MAX_SEGS, __NETDEV_A_DEV_MAX, NETDEV_A_DEV_MAX = (__NETDEV_A_DEV_MAX - 1) diff --git a/tools/include/uapi/linux/prctl.h b/tools/include/uapi/linux/prctl.h index f23d9a16507f..3c36aeade991 100644 --- a/tools/include/uapi/linux/prctl.h +++ b/tools/include/uapi/linux/prctl.h @@ -294,4 +294,15 @@ struct prctl_mm_map { #define PR_SET_MEMORY_MERGE 67 #define PR_GET_MEMORY_MERGE 68 + +#define PR_RISCV_V_SET_CONTROL 69 +#define PR_RISCV_V_GET_CONTROL 70 +# define PR_RISCV_V_VSTATE_CTRL_DEFAULT 0 +# define PR_RISCV_V_VSTATE_CTRL_OFF 1 +# define PR_RISCV_V_VSTATE_CTRL_ON 2 +# define PR_RISCV_V_VSTATE_CTRL_INHERIT (1 << 4) +# define PR_RISCV_V_VSTATE_CTRL_CUR_MASK 0x3 +# define PR_RISCV_V_VSTATE_CTRL_NEXT_MASK 0xc +# define PR_RISCV_V_VSTATE_CTRL_MASK 0x1f + #endif /* _LINUX_PRCTL_H */ diff --git a/tools/include/uapi/linux/seccomp.h b/tools/include/uapi/linux/seccomp.h new file mode 100644 index 000000000000..dbfc9b37fcae --- /dev/null +++ b/tools/include/uapi/linux/seccomp.h @@ -0,0 +1,157 @@ +/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ +#ifndef _UAPI_LINUX_SECCOMP_H +#define _UAPI_LINUX_SECCOMP_H + +#include <linux/compiler.h> +#include <linux/types.h> + + +/* Valid values for seccomp.mode and prctl(PR_SET_SECCOMP, <mode>) */ +#define SECCOMP_MODE_DISABLED 0 /* seccomp is not in use. */ +#define SECCOMP_MODE_STRICT 1 /* uses hard-coded filter. */ +#define SECCOMP_MODE_FILTER 2 /* uses user-supplied filter. */ + +/* Valid operations for seccomp syscall. */ +#define SECCOMP_SET_MODE_STRICT 0 +#define SECCOMP_SET_MODE_FILTER 1 +#define SECCOMP_GET_ACTION_AVAIL 2 +#define SECCOMP_GET_NOTIF_SIZES 3 + +/* Valid flags for SECCOMP_SET_MODE_FILTER */ +#define SECCOMP_FILTER_FLAG_TSYNC (1UL << 0) +#define SECCOMP_FILTER_FLAG_LOG (1UL << 1) +#define SECCOMP_FILTER_FLAG_SPEC_ALLOW (1UL << 2) +#define SECCOMP_FILTER_FLAG_NEW_LISTENER (1UL << 3) +#define SECCOMP_FILTER_FLAG_TSYNC_ESRCH (1UL << 4) +/* Received notifications wait in killable state (only respond to fatal signals) */ +#define SECCOMP_FILTER_FLAG_WAIT_KILLABLE_RECV (1UL << 5) + +/* + * All BPF programs must return a 32-bit value. + * The bottom 16-bits are for optional return data. + * The upper 16-bits are ordered from least permissive values to most, + * as a signed value (so 0x8000000 is negative). + * + * The ordering ensures that a min_t() over composed return values always + * selects the least permissive choice. + */ +#define SECCOMP_RET_KILL_PROCESS 0x80000000U /* kill the process */ +#define SECCOMP_RET_KILL_THREAD 0x00000000U /* kill the thread */ +#define SECCOMP_RET_KILL SECCOMP_RET_KILL_THREAD +#define SECCOMP_RET_TRAP 0x00030000U /* disallow and force a SIGSYS */ +#define SECCOMP_RET_ERRNO 0x00050000U /* returns an errno */ +#define SECCOMP_RET_USER_NOTIF 0x7fc00000U /* notifies userspace */ +#define SECCOMP_RET_TRACE 0x7ff00000U /* pass to a tracer or disallow */ +#define SECCOMP_RET_LOG 0x7ffc0000U /* allow after logging */ +#define SECCOMP_RET_ALLOW 0x7fff0000U /* allow */ + +/* Masks for the return value sections. */ +#define SECCOMP_RET_ACTION_FULL 0xffff0000U +#define SECCOMP_RET_ACTION 0x7fff0000U +#define SECCOMP_RET_DATA 0x0000ffffU + +/** + * struct seccomp_data - the format the BPF program executes over. + * @nr: the system call number + * @arch: indicates system call convention as an AUDIT_ARCH_* value + * as defined in <linux/audit.h>. + * @instruction_pointer: at the time of the system call. + * @args: up to 6 system call arguments always stored as 64-bit values + * regardless of the architecture. + */ +struct seccomp_data { + int nr; + __u32 arch; + __u64 instruction_pointer; + __u64 args[6]; +}; + +struct seccomp_notif_sizes { + __u16 seccomp_notif; + __u16 seccomp_notif_resp; + __u16 seccomp_data; +}; + +struct seccomp_notif { + __u64 id; + __u32 pid; + __u32 flags; + struct seccomp_data data; +}; + +/* + * Valid flags for struct seccomp_notif_resp + * + * Note, the SECCOMP_USER_NOTIF_FLAG_CONTINUE flag must be used with caution! + * If set by the process supervising the syscalls of another process the + * syscall will continue. This is problematic because of an inherent TOCTOU. + * An attacker can exploit the time while the supervised process is waiting on + * a response from the supervising process to rewrite syscall arguments which + * are passed as pointers of the intercepted syscall. + * It should be absolutely clear that this means that the seccomp notifier + * _cannot_ be used to implement a security policy! It should only ever be used + * in scenarios where a more privileged process supervises the syscalls of a + * lesser privileged process to get around kernel-enforced security + * restrictions when the privileged process deems this safe. In other words, + * in order to continue a syscall the supervising process should be sure that + * another security mechanism or the kernel itself will sufficiently block + * syscalls if arguments are rewritten to something unsafe. + * + * Similar precautions should be applied when stacking SECCOMP_RET_USER_NOTIF + * or SECCOMP_RET_TRACE. For SECCOMP_RET_USER_NOTIF filters acting on the + * same syscall, the most recently added filter takes precedence. This means + * that the new SECCOMP_RET_USER_NOTIF filter can override any + * SECCOMP_IOCTL_NOTIF_SEND from earlier filters, essentially allowing all + * such filtered syscalls to be executed by sending the response + * SECCOMP_USER_NOTIF_FLAG_CONTINUE. Note that SECCOMP_RET_TRACE can equally + * be overriden by SECCOMP_USER_NOTIF_FLAG_CONTINUE. + */ +#define SECCOMP_USER_NOTIF_FLAG_CONTINUE (1UL << 0) + +struct seccomp_notif_resp { + __u64 id; + __s64 val; + __s32 error; + __u32 flags; +}; + +#define SECCOMP_USER_NOTIF_FD_SYNC_WAKE_UP (1UL << 0) + +/* valid flags for seccomp_notif_addfd */ +#define SECCOMP_ADDFD_FLAG_SETFD (1UL << 0) /* Specify remote fd */ +#define SECCOMP_ADDFD_FLAG_SEND (1UL << 1) /* Addfd and return it, atomically */ + +/** + * struct seccomp_notif_addfd + * @id: The ID of the seccomp notification + * @flags: SECCOMP_ADDFD_FLAG_* + * @srcfd: The local fd number + * @newfd: Optional remote FD number if SETFD option is set, otherwise 0. + * @newfd_flags: The O_* flags the remote FD should have applied + */ +struct seccomp_notif_addfd { + __u64 id; + __u32 flags; + __u32 srcfd; + __u32 newfd; + __u32 newfd_flags; +}; + +#define SECCOMP_IOC_MAGIC '!' +#define SECCOMP_IO(nr) _IO(SECCOMP_IOC_MAGIC, nr) +#define SECCOMP_IOR(nr, type) _IOR(SECCOMP_IOC_MAGIC, nr, type) +#define SECCOMP_IOW(nr, type) _IOW(SECCOMP_IOC_MAGIC, nr, type) +#define SECCOMP_IOWR(nr, type) _IOWR(SECCOMP_IOC_MAGIC, nr, type) + +/* Flags for seccomp notification fd ioctl. */ +#define SECCOMP_IOCTL_NOTIF_RECV SECCOMP_IOWR(0, struct seccomp_notif) +#define SECCOMP_IOCTL_NOTIF_SEND SECCOMP_IOWR(1, \ + struct seccomp_notif_resp) +#define SECCOMP_IOCTL_NOTIF_ID_VALID SECCOMP_IOW(2, __u64) +/* On success, the return value is the remote process's added fd number */ +#define SECCOMP_IOCTL_NOTIF_ADDFD SECCOMP_IOW(3, \ + struct seccomp_notif_addfd) + +#define SECCOMP_IOCTL_NOTIF_SET_FLAGS SECCOMP_IOW(4, __u64) + +#endif /* _UAPI_LINUX_SECCOMP_H */ diff --git a/tools/include/uapi/linux/vhost.h b/tools/include/uapi/linux/vhost.h index 92e1b700b51c..f5c48b61ab62 100644 --- a/tools/include/uapi/linux/vhost.h +++ b/tools/include/uapi/linux/vhost.h @@ -45,6 +45,25 @@ #define VHOST_SET_LOG_BASE _IOW(VHOST_VIRTIO, 0x04, __u64) /* Specify an eventfd file descriptor to signal on log write. */ #define VHOST_SET_LOG_FD _IOW(VHOST_VIRTIO, 0x07, int) +/* By default, a device gets one vhost_worker that its virtqueues share. This + * command allows the owner of the device to create an additional vhost_worker + * for the device. It can later be bound to 1 or more of its virtqueues using + * the VHOST_ATTACH_VRING_WORKER command. + * + * This must be called after VHOST_SET_OWNER and the caller must be the owner + * of the device. The new thread will inherit caller's cgroups and namespaces, + * and will share the caller's memory space. The new thread will also be + * counted against the caller's RLIMIT_NPROC value. + * + * The worker's ID used in other commands will be returned in + * vhost_worker_state. + */ +#define VHOST_NEW_WORKER _IOR(VHOST_VIRTIO, 0x8, struct vhost_worker_state) +/* Free a worker created with VHOST_NEW_WORKER if it's not attached to any + * virtqueue. If userspace is not able to call this for workers its created, + * the kernel will free all the device's workers when the device is closed. + */ +#define VHOST_FREE_WORKER _IOW(VHOST_VIRTIO, 0x9, struct vhost_worker_state) /* Ring setup. */ /* Set number of descriptors in ring. This parameter can not @@ -70,6 +89,18 @@ #define VHOST_VRING_BIG_ENDIAN 1 #define VHOST_SET_VRING_ENDIAN _IOW(VHOST_VIRTIO, 0x13, struct vhost_vring_state) #define VHOST_GET_VRING_ENDIAN _IOW(VHOST_VIRTIO, 0x14, struct vhost_vring_state) +/* Attach a vhost_worker created with VHOST_NEW_WORKER to one of the device's + * virtqueues. + * + * This will replace the virtqueue's existing worker. If the replaced worker + * is no longer attached to any virtqueues, it can be freed with + * VHOST_FREE_WORKER. + */ +#define VHOST_ATTACH_VRING_WORKER _IOW(VHOST_VIRTIO, 0x15, \ + struct vhost_vring_worker) +/* Return the vring worker's ID */ +#define VHOST_GET_VRING_WORKER _IOWR(VHOST_VIRTIO, 0x16, \ + struct vhost_vring_worker) /* The following ioctls use eventfd file descriptors to signal and poll * for events. */ diff --git a/tools/include/uapi/sound/asound.h b/tools/include/uapi/sound/asound.h index 0aa955aa8246..f9939da41122 100644 --- a/tools/include/uapi/sound/asound.h +++ b/tools/include/uapi/sound/asound.h @@ -274,6 +274,7 @@ typedef int __bitwise snd_pcm_subformat_t; #define SNDRV_PCM_INFO_DOUBLE 0x00000004 /* Double buffering needed for PCM start/stop */ #define SNDRV_PCM_INFO_BATCH 0x00000010 /* double buffering */ #define SNDRV_PCM_INFO_SYNC_APPLPTR 0x00000020 /* need the explicit sync of appl_ptr update */ +#define SNDRV_PCM_INFO_PERFECT_DRAIN 0x00000040 /* silencing at the end of stream is not required */ #define SNDRV_PCM_INFO_INTERLEAVED 0x00000100 /* channels are interleaved */ #define SNDRV_PCM_INFO_NONINTERLEAVED 0x00000200 /* channels are not interleaved */ #define SNDRV_PCM_INFO_COMPLEX 0x00000400 /* complex frame organization (mmap only) */ @@ -383,6 +384,9 @@ typedef int snd_pcm_hw_param_t; #define SNDRV_PCM_HW_PARAMS_NORESAMPLE (1<<0) /* avoid rate resampling */ #define SNDRV_PCM_HW_PARAMS_EXPORT_BUFFER (1<<1) /* export buffer */ #define SNDRV_PCM_HW_PARAMS_NO_PERIOD_WAKEUP (1<<2) /* disable period wakeups */ +#define SNDRV_PCM_HW_PARAMS_NO_DRAIN_SILENCE (1<<3) /* suppress drain with the filling + * of the silence samples + */ struct snd_interval { unsigned int min, max; @@ -708,7 +712,7 @@ enum { * Raw MIDI section - /dev/snd/midi?? */ -#define SNDRV_RAWMIDI_VERSION SNDRV_PROTOCOL_VERSION(2, 0, 2) +#define SNDRV_RAWMIDI_VERSION SNDRV_PROTOCOL_VERSION(2, 0, 4) enum { SNDRV_RAWMIDI_STREAM_OUTPUT = 0, @@ -719,6 +723,7 @@ enum { #define SNDRV_RAWMIDI_INFO_OUTPUT 0x00000001 #define SNDRV_RAWMIDI_INFO_INPUT 0x00000002 #define SNDRV_RAWMIDI_INFO_DUPLEX 0x00000004 +#define SNDRV_RAWMIDI_INFO_UMP 0x00000008 struct snd_rawmidi_info { unsigned int device; /* RO/WR (control): device number */ @@ -779,6 +784,72 @@ struct snd_rawmidi_status { }; #endif +/* UMP EP info flags */ +#define SNDRV_UMP_EP_INFO_STATIC_BLOCKS 0x01 + +/* UMP EP Protocol / JRTS capability bits */ +#define SNDRV_UMP_EP_INFO_PROTO_MIDI_MASK 0x0300 +#define SNDRV_UMP_EP_INFO_PROTO_MIDI1 0x0100 /* MIDI 1.0 */ +#define SNDRV_UMP_EP_INFO_PROTO_MIDI2 0x0200 /* MIDI 2.0 */ +#define SNDRV_UMP_EP_INFO_PROTO_JRTS_MASK 0x0003 +#define SNDRV_UMP_EP_INFO_PROTO_JRTS_TX 0x0001 /* JRTS Transmit */ +#define SNDRV_UMP_EP_INFO_PROTO_JRTS_RX 0x0002 /* JRTS Receive */ + +/* UMP Endpoint information */ +struct snd_ump_endpoint_info { + int card; /* card number */ + int device; /* device number */ + unsigned int flags; /* additional info */ + unsigned int protocol_caps; /* protocol capabilities */ + unsigned int protocol; /* current protocol */ + unsigned int num_blocks; /* # of function blocks */ + unsigned short version; /* UMP major/minor version */ + unsigned short family_id; /* MIDI device family ID */ + unsigned short model_id; /* MIDI family model ID */ + unsigned int manufacturer_id; /* MIDI manufacturer ID */ + unsigned char sw_revision[4]; /* software revision */ + unsigned short padding; + unsigned char name[128]; /* endpoint name string */ + unsigned char product_id[128]; /* unique product id string */ + unsigned char reserved[32]; +} __packed; + +/* UMP direction */ +#define SNDRV_UMP_DIR_INPUT 0x01 +#define SNDRV_UMP_DIR_OUTPUT 0x02 +#define SNDRV_UMP_DIR_BIDIRECTION 0x03 + +/* UMP block info flags */ +#define SNDRV_UMP_BLOCK_IS_MIDI1 (1U << 0) /* MIDI 1.0 port w/o restrict */ +#define SNDRV_UMP_BLOCK_IS_LOWSPEED (1U << 1) /* 31.25Kbps B/W MIDI1 port */ + +/* UMP block user-interface hint */ +#define SNDRV_UMP_BLOCK_UI_HINT_UNKNOWN 0x00 +#define SNDRV_UMP_BLOCK_UI_HINT_RECEIVER 0x01 +#define SNDRV_UMP_BLOCK_UI_HINT_SENDER 0x02 +#define SNDRV_UMP_BLOCK_UI_HINT_BOTH 0x03 + +/* UMP groups and blocks */ +#define SNDRV_UMP_MAX_GROUPS 16 +#define SNDRV_UMP_MAX_BLOCKS 32 + +/* UMP Block information */ +struct snd_ump_block_info { + int card; /* card number */ + int device; /* device number */ + unsigned char block_id; /* block ID (R/W) */ + unsigned char direction; /* UMP direction */ + unsigned char active; /* Activeness */ + unsigned char first_group; /* first group ID */ + unsigned char num_groups; /* number of groups */ + unsigned char midi_ci_version; /* MIDI-CI support version */ + unsigned char sysex8_streams; /* max number of sysex8 streams */ + unsigned char ui_hint; /* user interface hint */ + unsigned int flags; /* various info flags */ + unsigned char name[128]; /* block name string */ + unsigned char reserved[32]; +} __packed; + #define SNDRV_RAWMIDI_IOCTL_PVERSION _IOR('W', 0x00, int) #define SNDRV_RAWMIDI_IOCTL_INFO _IOR('W', 0x01, struct snd_rawmidi_info) #define SNDRV_RAWMIDI_IOCTL_USER_PVERSION _IOW('W', 0x02, int) @@ -786,6 +857,9 @@ struct snd_rawmidi_status { #define SNDRV_RAWMIDI_IOCTL_STATUS _IOWR('W', 0x20, struct snd_rawmidi_status) #define SNDRV_RAWMIDI_IOCTL_DROP _IOW('W', 0x30, int) #define SNDRV_RAWMIDI_IOCTL_DRAIN _IOW('W', 0x31, int) +/* Additional ioctls for UMP rawmidi devices */ +#define SNDRV_UMP_IOCTL_ENDPOINT_INFO _IOR('W', 0x40, struct snd_ump_endpoint_info) +#define SNDRV_UMP_IOCTL_BLOCK_INFO _IOR('W', 0x41, struct snd_ump_block_info) /* * Timer section - /dev/snd/timer @@ -961,7 +1035,7 @@ struct snd_timer_tread { * * ****************************************************************************/ -#define SNDRV_CTL_VERSION SNDRV_PROTOCOL_VERSION(2, 0, 8) +#define SNDRV_CTL_VERSION SNDRV_PROTOCOL_VERSION(2, 0, 9) struct snd_ctl_card_info { int card; /* card number */ @@ -1122,6 +1196,9 @@ struct snd_ctl_tlv { #define SNDRV_CTL_IOCTL_RAWMIDI_NEXT_DEVICE _IOWR('U', 0x40, int) #define SNDRV_CTL_IOCTL_RAWMIDI_INFO _IOWR('U', 0x41, struct snd_rawmidi_info) #define SNDRV_CTL_IOCTL_RAWMIDI_PREFER_SUBDEVICE _IOW('U', 0x42, int) +#define SNDRV_CTL_IOCTL_UMP_NEXT_DEVICE _IOWR('U', 0x43, int) +#define SNDRV_CTL_IOCTL_UMP_ENDPOINT_INFO _IOWR('U', 0x44, struct snd_ump_endpoint_info) +#define SNDRV_CTL_IOCTL_UMP_BLOCK_INFO _IOWR('U', 0x45, struct snd_ump_block_info) #define SNDRV_CTL_IOCTL_POWER _IOWR('U', 0xd0, int) #define SNDRV_CTL_IOCTL_POWER_STATE _IOR('U', 0xd1, int) |