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| author | Alex Snast <asnast@gmail.com> | 2014-08-13 19:42:40 +0400 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2014-08-13 22:55:26 +0400 |
| commit | 86998dda5d244f4b1b994dfe34a677f3b70cfdd3 (patch) | |
| tree | ed00ab171797ef1ff813844b8ff9e84b25cdc3a7 /tools/perf | |
| parent | 467ec08567483e3868f240b1ee03808970e06388 (diff) | |
| download | linux-86998dda5d244f4b1b994dfe34a677f3b70cfdd3.tar.xz | |
perf trace: Add beautifier for mremap flags param
~/devel/kernel/tools/perf(branch:master*) ยป sudo ./perf trace ~/mremap_test
0.543 ( 0.003 ms): mprotect(start: 0x600000, len: 4096, prot: READ ) = 0
0.550 ( 0.003 ms): mprotect(start: 0x7f441260d000, len: 4096, prot: READ) = 0
0.561 ( 0.010 ms): munmap(addr: 0x7f44125e2000, len: 165572 ) = 0
0.595 ( 0.012 ms): mmap(len: 12288, prot: READ|WRITE, flags: SHARED|ANONYMOUS|LOCKED, fd: -1) = 0x12608000
0.603 ( 0.006 ms): mremap(addr: 0x7f4412608000, old_len: 4096, new_len: 4096, flags: MAYMOVE|FIXED, new_addr: 0x7f16da295000) = 0xda295000
0.608 ( 0.003 ms): mremap(addr: 0x7f441260a000, old_len: 4096, new_len: 4096, flags: MAYMOVE|FIXED, new_addr: 0x7f16da297000) = 0xda297000
0.612 ( 0.003 ms): mremap(addr: 0x7f4412609000, old_len: 4096, new_len: 4096, flags: MAYMOVE|FIXED, new_addr: 0x7f16da296000) = 0xda296000
0.619 ( 0.000 ms): exit_group(
Signed-off-by: Alex Snast <asnast@gmail.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1407944560-26924-1-git-send-email-asnast@gmail.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf')
| -rw-r--r-- | tools/perf/builtin-trace.c | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/tools/perf/builtin-trace.c b/tools/perf/builtin-trace.c index 36ae51d61be2..20fac5083771 100644 --- a/tools/perf/builtin-trace.c +++ b/tools/perf/builtin-trace.c @@ -402,6 +402,31 @@ static size_t syscall_arg__scnprintf_mmap_flags(char *bf, size_t size, #define SCA_MMAP_FLAGS syscall_arg__scnprintf_mmap_flags +static size_t syscall_arg__scnprintf_mremap_flags(char *bf, size_t size, + struct syscall_arg *arg) +{ + int printed = 0, flags = arg->val; + +#define P_MREMAP_FLAG(n) \ + if (flags & MREMAP_##n) { \ + printed += scnprintf(bf + printed, size - printed, "%s%s", printed ? "|" : "", #n); \ + flags &= ~MREMAP_##n; \ + } + + P_MREMAP_FLAG(MAYMOVE); +#ifdef MREMAP_FIXED + P_MREMAP_FLAG(FIXED); +#endif +#undef P_MREMAP_FLAG + + if (flags) + printed += scnprintf(bf + printed, size - printed, "%s%#x", printed ? "|" : "", flags); + + return printed; +} + +#define SCA_MREMAP_FLAGS syscall_arg__scnprintf_mremap_flags + static size_t syscall_arg__scnprintf_madvise_behavior(char *bf, size_t size, struct syscall_arg *arg) { @@ -1004,6 +1029,7 @@ static struct syscall_fmt { [2] = SCA_MMAP_PROT, /* prot */ }, }, { .name = "mremap", .hexret = true, .arg_scnprintf = { [0] = SCA_HEX, /* addr */ + [3] = SCA_MREMAP_FLAGS, /* flags */ [4] = SCA_HEX, /* new_addr */ }, }, { .name = "munlock", .errmsg = true, .arg_scnprintf = { [0] = SCA_HEX, /* addr */ }, }, |