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author | Arnaldo Carvalho de Melo <acme@redhat.com> | 2018-12-17 12:21:09 -0300 |
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committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2018-12-18 16:15:18 -0300 |
commit | ce05539f20b337221d3310baf73b45317dab067c (patch) | |
tree | 252646078cb8ae0d81b243a65a62a264c64b4280 /tools/perf/trace | |
parent | 2c83dfae021306d528b21dceb8d128ca16524c5a (diff) | |
download | talos-op-linux-ce05539f20b337221d3310baf73b45317dab067c.tar.gz talos-op-linux-ce05539f20b337221d3310baf73b45317dab067c.zip |
perf trace: Show NULL when syscall pointer args are 0
Matching strace's output format. The 'format' file for the syscall
tracepoints have an indication if the arg is a pointer, with some
exceptions like 'mmap' that has its first arg as an 'unsigned long', so
use a heuristic using the argument name, i.e. if it contains the 'addr'
substring, format it with the pointer formatter.
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Luis Cláudio Gonçalves <lclaudio@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Wang Nan <wangnan0@huawei.com>
Link: https://lkml.kernel.org/n/tip-ddghemr8qrm6i0sb8awznbze@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/trace')
-rw-r--r-- | tools/perf/trace/beauty/beauty.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/tools/perf/trace/beauty/beauty.h b/tools/perf/trace/beauty/beauty.h index ac25b6410bc8..1a93d9c626ef 100644 --- a/tools/perf/trace/beauty/beauty.h +++ b/tools/perf/trace/beauty/beauty.h @@ -98,6 +98,9 @@ size_t syscall_arg__scnprintf_fd(char *bf, size_t size, struct syscall_arg *arg) size_t syscall_arg__scnprintf_hex(char *bf, size_t size, struct syscall_arg *arg); #define SCA_HEX syscall_arg__scnprintf_hex +size_t syscall_arg__scnprintf_ptr(char *bf, size_t size, struct syscall_arg *arg); +#define SCA_PTR syscall_arg__scnprintf_ptr + size_t syscall_arg__scnprintf_int(char *bf, size_t size, struct syscall_arg *arg); #define SCA_INT syscall_arg__scnprintf_int |