| Age | Commit message (Collapse) | Author | Files | Lines |
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This is currently working due to extra include paths in the build.
Committer testing:
$ cd tools/include/uapi/asm/
Before this patch:
$ ls -la ../../arch/x86/include/uapi/asm/errno.h
ls: cannot access '../../arch/x86/include/uapi/asm/errno.h': No such file or directory
$
After this patch;
$ ls -la ../../../arch/x86/include/uapi/asm/errno.h
-rw-rw-r--. 1 acme acme 31 Feb 20 12:42 ../../../arch/x86/include/uapi/asm/errno.h
$
Check that that is still under tools/, i.e. hasn't escaped into the main
kernel sources:
$ cd ../../../arch/x86/include/uapi/asm/
$ pwd
/home/acme/git/perf/tools/arch/x86/include/uapi/asm
$
Signed-off-by: Ian Rogers <[email protected]>
Tested-by: Arnaldo Carvalho de Melo <[email protected]>
Acked-by: Jiri Olsa <[email protected]>
Cc: Adrian Hunter <[email protected]>
Cc: Alexander Shishkin <[email protected]>
Cc: Alexios Zavras <[email protected]>
Cc: Andi Kleen <[email protected]>
Cc: Greg Kroah-Hartman <[email protected]>
Cc: Igor Lubashev <[email protected]>
Cc: Kan Liang <[email protected]>
Cc: Mark Rutland <[email protected]>
Cc: Mathieu Poirier <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: Nick Desaulniers <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Stephane Eranian <[email protected]>
Cc: Thomas Gleixner <[email protected]>
Cc: Wei Li <[email protected]>
Link: http://lore.kernel.org/lkml/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
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Add missing uapi header the BPF_PROG_TYPE_PERF_EVENT programs by
exporting struct user_regs_struct instead of struct pt_regs which is
in-kernel only.
Signed-off-by: Björn Töpel <[email protected]>
Signed-off-by: Daniel Borkmann <[email protected]>
Link: https://lore.kernel.org/bpf/[email protected]
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We were getting the file by luck, from one of the paths in -I, fix it to
get it from the proper place:
$ cd tools/include/uapi/asm/
[acme@quaco asm]$ grep include bitsperlong.h
#include "../../arch/x86/include/uapi/asm/bitsperlong.h"
#include "../../arch/arm64/include/uapi/asm/bitsperlong.h"
#include "../../arch/powerpc/include/uapi/asm/bitsperlong.h"
#include "../../arch/s390/include/uapi/asm/bitsperlong.h"
#include "../../arch/sparc/include/uapi/asm/bitsperlong.h"
#include "../../arch/mips/include/uapi/asm/bitsperlong.h"
#include "../../arch/ia64/include/uapi/asm/bitsperlong.h"
#include "../../arch/riscv/include/uapi/asm/bitsperlong.h"
#include "../../arch/alpha/include/uapi/asm/bitsperlong.h"
#include <asm-generic/bitsperlong.h>
$ ls -la ../../arch/x86/include/uapi/asm/bitsperlong.h
ls: cannot access '../../arch/x86/include/uapi/asm/bitsperlong.h': No such file or directory
$ ls -la ../../../arch/*/include/uapi/asm/bitsperlong.h
-rw-rw-r--. 1 237 ../../../arch/alpha/include/uapi/asm/bitsperlong.h
-rw-rw-r--. 1 841 ../../../arch/arm64/include/uapi/asm/bitsperlong.h
-rw-rw-r--. 1 966 ../../../arch/hexagon/include/uapi/asm/bitsperlong.h
-rw-rw-r--. 1 234 ../../../arch/ia64/include/uapi/asm/bitsperlong.h
-rw-rw-r--. 1 100 ../../../arch/microblaze/include/uapi/asm/bitsperlong.h
-rw-rw-r--. 1 244 ../../../arch/mips/include/uapi/asm/bitsperlong.h
-rw-rw-r--. 1 352 ../../../arch/parisc/include/uapi/asm/bitsperlong.h
-rw-rw-r--. 1 312 ../../../arch/powerpc/include/uapi/asm/bitsperlong.h
-rw-rw-r--. 1 353 ../../../arch/riscv/include/uapi/asm/bitsperlong.h
-rw-rw-r--. 1 292 ../../../arch/s390/include/uapi/asm/bitsperlong.h
-rw-rw-r--. 1 323 ../../../arch/sparc/include/uapi/asm/bitsperlong.h
-rw-rw-r--. 1 320 ../../../arch/x86/include/uapi/asm/bitsperlong.h
$
Found while fixing some other problem, before it was escaping the
tools/ chroot and using stuff in the kernel sources:
CC /tmp/build/perf/util/find_bit.o
In file included from /git/linux/tools/include/../../arch/x86/include/uapi/asm/bitsperlong.h:11,
from /git/linux/tools/include/uapi/asm/bitsperlong.h:3,
from /git/linux/tools/include/linux/bits.h:6,
from /git/linux/tools/include/linux/bitops.h:13,
from ../lib/find_bit.c:17:
# cd /git/linux/tools/include/../../arch/x86/include/uapi/asm/
# pwd
/git/linux/arch/x86/include/uapi/asm
#
Now it is getting the one we want it to, i.e. the one inside tools/:
CC /tmp/build/perf/util/find_bit.o
In file included from /git/linux/tools/arch/x86/include/uapi/asm/bitsperlong.h:11,
from /git/linux/tools/include/linux/bits.h:6,
from /git/linux/tools/include/linux/bitops.h:13,
Cc: Adrian Hunter <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Namhyung Kim <[email protected]>
Link: https://lkml.kernel.org/n/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
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Cc: [email protected] # v4.18+
Signed-off-by: Bob Tracy <[email protected]>
Signed-off-by: Matt Turner <[email protected]>
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The BPF library is not built on 64-bit RISC-V, as the BPF feature is
not detected. Looking more in details, feature/test-bpf.c fails to build
with the following error:
| In file included from /tmp/linux-4.19.12/tools/include/uapi/asm/bitsperlong.h:17,
| from /tmp/linux-4.19.12/tools/include/uapi/asm-generic/unistd.h:2,
| from /usr/include/riscv64-linux-gnu/asm/unistd.h:1,
| from test-bpf.c:2:
| /tmp/linux-4.19.12/tools/include/asm-generic/bitsperlong.h:14:2: error: #error Inconsistent word size. Check asm/bitsperlong.h
| #error Inconsistent word size. Check asm/bitsperlong.h
| ^~~~~
The UAPI from the tools directory is missing RISC-V support, therefore
bitsperlong.h from asm-generic is used, defaulting to 32 bits.
Fix that by adding tools/arch/riscv/include/uapi/asm/bitsperlong.h as
a copy of arch/riscv/include/uapi/asm/bitsperlong.h and by updating
tools/include/uapi/asm/bitsperlong.h.
Signed-off-by: Aurelien Jarno <[email protected]>
Signed-off-by: Palmer Dabbelt <[email protected]>
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The BPF selftests fail to build with missing headers
'asm/bitsperlong.h' and 'asm/errno.h'.
These already exist in 'tools/arch/[arch]/include';
add architecture-agnostic header files in 'tools/include/uapi'
to reference them.
Signed-off-by: Sirio Balmelli <[email protected]>
Signed-off-by: Daniel Borkmann <[email protected]>
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At least on x86_64, the kernel's BPF selftests seemed to have stopped
to build due to 618e165b2a8e ("selftests/bpf: sync kernel headers and
introduce arch support in Makefile"):
[...]
In file included from test_verifier.c:29:0:
../../../include/uapi/linux/bpf_perf_event.h:11:32:
fatal error: asm/bpf_perf_event.h: No such file or directory
#include <asm/bpf_perf_event.h>
^
compilation terminated.
[...]
While pulling in tools/arch/*/include/uapi/asm/bpf_perf_event.h seems
to work fine, there's no automated fall-back logic right now that would
do the same out of tools/include/uapi/asm-generic/bpf_perf_event.h. The
usual convention today is to add a include/[uapi/]asm/ equivalent that
would pull in the correct arch header or generic one as fall-back, all
ifdef'ed based on compiler target definition. It's similarly done also
in other cases such as tools/include/asm/barrier.h, thus adapt the same
here.
Fixes: 618e165b2a8e ("selftests/bpf: sync kernel headers and introduce arch support in Makefile")
Signed-off-by: Daniel Borkmann <[email protected]>
Cc: Hendrik Brueckner <[email protected]>
Cc: Arnaldo Carvalho de Melo <[email protected]>
Acked-by: Alexei Starovoitov <[email protected]>
Signed-off-by: Alexei Starovoitov <[email protected]>
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