diff options
| author | Arnaldo Carvalho de Melo <acme@redhat.com> | 2016-04-04 19:05:36 -0300 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2016-04-08 09:58:14 -0300 |
| commit | 1b700c9975008615ad470cf79acc8455ce60a695 (patch) | |
| tree | c7741b3db935280acc9365ef01b0dcda8f2fc296 /tools/perf/util/syscalltbl.c | |
| parent | 5af56fab2b11769e35ce96613d321bcc0f7b84c1 (diff) | |
perf tools: Build syscall table .c header from kernel's syscall_64.tbl
We used libaudit to map ids to syscall names and vice-versa, but that
imposes a delay in supporting new syscalls, having to wait for libaudit
to get those new syscalls on its tables.
To remove that delay, for x86_64 initially, grab a copy of
arch/x86/entry/syscalls/syscall_64.tbl and use it to generate those
tables.
Syscalls currently not available in audit-libs:
# trace -e copy_file_range,membarrier,mlock2,pread64,pwrite64,timerfd_create,userfaultfd
Error: Invalid syscall copy_file_range, membarrier, mlock2, pread64, pwrite64, timerfd_create, userfaultfd
Hint: try 'perf list syscalls:sys_enter_*'
Hint: and: 'man syscalls'
#
With this patch:
# trace -e copy_file_range,membarrier,mlock2,pread64,pwrite64,timerfd_create,userfaultfd
8505.733 ( 0.010 ms): gnome-shell/2519 timerfd_create(flags: 524288) = 36
8506.688 ( 0.005 ms): gnome-shell/2519 timerfd_create(flags: 524288) = 40
30023.097 ( 0.025 ms): qemu-system-x8/24629 pwrite64(fd: 18, buf: 0x7f63ae382000, count: 4096, pos: 529592320) = 4096
31268.712 ( 0.028 ms): qemu-system-x8/24629 pwrite64(fd: 18, buf: 0x7f63afd8b000, count: 4096, pos: 2314133504) = 4096
31268.854 ( 0.016 ms): qemu-system-x8/24629 pwrite64(fd: 18, buf: 0x7f63afda2000, count: 4096, pos: 2314137600) = 4096
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Wang Nan <wangnan0@huawei.com>
Link: http://lkml.kernel.org/n/tip-51xfjbxevdsucmnbc4ka5r88@git.kernel.org
[ Added make dep for 'prepare' in 'LIBPERF_IN', fix by Wang Nan to fix parallell build ]
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/util/syscalltbl.c')
| -rw-r--r-- | tools/perf/util/syscalltbl.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/tools/perf/util/syscalltbl.c b/tools/perf/util/syscalltbl.c index eb74a97b1f11..bbb4c1957578 100644 --- a/tools/perf/util/syscalltbl.c +++ b/tools/perf/util/syscalltbl.c @@ -21,6 +21,12 @@ #include <string.h> #include "util.h" +#if defined(__x86_64__) +#include <asm/syscalls_64.c> +const int syscalltbl_native_max_id = SYSCALLTBL_x86_64_MAX_ID; +static const char **syscalltbl_native = syscalltbl_x86_64; +#endif + struct syscall { int id; const char *name; |