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Diffstat (limited to 'arch/x86/um')
-rw-r--r--arch/x86/um/Makefile2
-rw-r--r--arch/x86/um/asm/syscall.h1
-rw-r--r--arch/x86/um/ptrace_32.c8
-rw-r--r--arch/x86/um/signal.c18
4 files changed, 15 insertions, 14 deletions
diff --git a/arch/x86/um/Makefile b/arch/x86/um/Makefile
index a8fecc226946..3ee2bb6b440b 100644
--- a/arch/x86/um/Makefile
+++ b/arch/x86/um/Makefile
@@ -17,7 +17,7 @@ obj-y = bug.o bugs_$(BITS).o delay.o fault.o ksyms.o ldt.o \
ifeq ($(CONFIG_X86_32),y)
obj-y += checksum_32.o
-obj-$(CONFIG_BINFMT_ELF) += elfcore.o
+obj-$(CONFIG_ELF_CORE) += elfcore.o
subarch-y = ../lib/string_32.o ../lib/atomic64_32.o ../lib/atomic64_cx8_32.o
subarch-$(CONFIG_RWSEM_XCHGADD_ALGORITHM) += ../lib/rwsem.o
diff --git a/arch/x86/um/asm/syscall.h b/arch/x86/um/asm/syscall.h
index 81d6562ce01d..11ab90dc5f14 100644
--- a/arch/x86/um/asm/syscall.h
+++ b/arch/x86/um/asm/syscall.h
@@ -1,6 +1,7 @@
#ifndef __UM_ASM_SYSCALL_H
#define __UM_ASM_SYSCALL_H
+#include <asm/syscall-generic.h>
#include <uapi/linux/audit.h>
typedef asmlinkage long (*sys_call_ptr_t)(unsigned long, unsigned long,
diff --git a/arch/x86/um/ptrace_32.c b/arch/x86/um/ptrace_32.c
index a29756f2d940..47c78d5e5c32 100644
--- a/arch/x86/um/ptrace_32.c
+++ b/arch/x86/um/ptrace_32.c
@@ -68,6 +68,7 @@ static const int reg_offsets[] = {
[EFL] = HOST_EFLAGS,
[UESP] = HOST_SP,
[SS] = HOST_SS,
+ [ORIG_EAX] = HOST_ORIG_AX,
};
int putreg(struct task_struct *child, int regno, unsigned long value)
@@ -83,6 +84,7 @@ int putreg(struct task_struct *child, int regno, unsigned long value)
case EAX:
case EIP:
case UESP:
+ case ORIG_EAX:
break;
case FS:
if (value && (value & 3) != 3)
@@ -108,9 +110,6 @@ int putreg(struct task_struct *child, int regno, unsigned long value)
value &= FLAG_MASK;
child->thread.regs.regs.gp[HOST_EFLAGS] |= value;
return 0;
- case ORIG_EAX:
- child->thread.regs.regs.syscall = value;
- return 0;
default :
panic("Bad register in putreg() : %d\n", regno);
}
@@ -143,8 +142,6 @@ unsigned long getreg(struct task_struct *child, int regno)
regno >>= 2;
switch (regno) {
- case ORIG_EAX:
- return child->thread.regs.regs.syscall;
case FS:
case GS:
case DS:
@@ -163,6 +160,7 @@ unsigned long getreg(struct task_struct *child, int regno)
case EDI:
case EBP:
case EFL:
+ case ORIG_EAX:
break;
default:
panic("Bad register in getreg() : %d\n", regno);
diff --git a/arch/x86/um/signal.c b/arch/x86/um/signal.c
index 06934a8a4872..14fcd01ed992 100644
--- a/arch/x86/um/signal.c
+++ b/arch/x86/um/signal.c
@@ -211,7 +211,7 @@ static int copy_sc_from_user(struct pt_regs *regs,
if (err)
return 1;
- err = convert_fxsr_from_user(&fpx, sc.fpstate);
+ err = convert_fxsr_from_user(&fpx, (void *)sc.fpstate);
if (err)
return 1;
@@ -227,7 +227,7 @@ static int copy_sc_from_user(struct pt_regs *regs,
{
struct user_i387_struct fp;
- err = copy_from_user(&fp, sc.fpstate,
+ err = copy_from_user(&fp, (void *)sc.fpstate,
sizeof(struct user_i387_struct));
if (err)
return 1;
@@ -291,7 +291,7 @@ static int copy_sc_to_user(struct sigcontext __user *to,
#endif
#undef PUTREG
sc.oldmask = mask;
- sc.fpstate = to_fp;
+ sc.fpstate = (unsigned long)to_fp;
err = copy_to_user(to, &sc, sizeof(struct sigcontext));
if (err)
@@ -468,12 +468,10 @@ long sys_sigreturn(void)
struct sigframe __user *frame = (struct sigframe __user *)(sp - 8);
sigset_t set;
struct sigcontext __user *sc = &frame->sc;
- unsigned long __user *oldmask = &sc->oldmask;
- unsigned long __user *extramask = frame->extramask;
int sig_size = (_NSIG_WORDS - 1) * sizeof(unsigned long);
- if (copy_from_user(&set.sig[0], oldmask, sizeof(set.sig[0])) ||
- copy_from_user(&set.sig[1], extramask, sig_size))
+ if (copy_from_user(&set.sig[0], &sc->oldmask, sizeof(set.sig[0])) ||
+ copy_from_user(&set.sig[1], frame->extramask, sig_size))
goto segfault;
set_current_blocked(&set);
@@ -505,6 +503,7 @@ int setup_signal_stack_si(unsigned long stack_top, struct ksignal *ksig,
{
struct rt_sigframe __user *frame;
int err = 0, sig = ksig->sig;
+ unsigned long fp_to;
frame = (struct rt_sigframe __user *)
round_down(stack_top - sizeof(struct rt_sigframe), 16);
@@ -526,7 +525,10 @@ int setup_signal_stack_si(unsigned long stack_top, struct ksignal *ksig,
err |= __save_altstack(&frame->uc.uc_stack, PT_REGS_SP(regs));
err |= copy_sc_to_user(&frame->uc.uc_mcontext, &frame->fpstate, regs,
set->sig[0]);
- err |= __put_user(&frame->fpstate, &frame->uc.uc_mcontext.fpstate);
+
+ fp_to = (unsigned long)&frame->fpstate;
+
+ err |= __put_user(fp_to, &frame->uc.uc_mcontext.fpstate);
if (sizeof(*set) == 16) {
err |= __put_user(set->sig[0], &frame->uc.uc_sigmask.sig[0]);
err |= __put_user(set->sig[1], &frame->uc.uc_sigmask.sig[1]);