Commit-ID: beccb2b54a39ca5e49a7aa2912faa33617a45cc1 Gitweb: http://git.kernel.org/tip/beccb2b54a39ca5e49a7aa2912faa33617a45cc1 Author: Arnaldo Carvalho de Melo <a...@redhat.com> AuthorDate: Mon, 26 Aug 2013 12:29:38 -0300 Committer: Arnaldo Carvalho de Melo <a...@redhat.com> CommitDate: Mon, 26 Aug 2013 17:25:57 -0300
perf trace: Allow overiding the formatting of syscall fields The mmap syscalls, for instance, don't have the FORMAT_IS_POINTER for its pointer arguments, override it. This also paves the way for more specialized argument beautifiers, like for mmap's prot and flags arguments. Cc: Adrian Hunter <adrian.hun...@intel.com> Cc: David Ahern <dsah...@gmail.com> Cc: Frederic Weisbecker <fweis...@gmail.com> Cc: Mike Galbraith <efa...@gmx.de> Cc: Paul Mackerras <pau...@samba.org> Cc: Peter Zijlstra <pet...@infradead.org> Cc: Stephane Eranian <eran...@google.com> Link: http://lkml.kernel.org/n/tip-mm864hvhrpt39muxmmbtj...@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <a...@redhat.com> --- tools/perf/builtin-trace.c | 19 ++++++++++++++++--- 1 file changed, 16 insertions(+), 3 deletions(-) diff --git a/tools/perf/builtin-trace.c b/tools/perf/builtin-trace.c index 2d759f5..60ee811 100644 --- a/tools/perf/builtin-trace.c +++ b/tools/perf/builtin-trace.c @@ -17,24 +17,35 @@ static size_t syscall_arg__scnprintf_hex(char *bf, size_t size, unsigned long ar return scnprintf(bf, size, "%#lx", arg); } +#define SCA_HEX syscall_arg__scnprintf_hex + static struct syscall_fmt { const char *name; const char *alias; + size_t (*arg_scnprintf[6])(char *bf, size_t size, unsigned long arg); bool errmsg; bool timeout; bool hexret; } syscall_fmts[] = { { .name = "access", .errmsg = true, }, { .name = "arch_prctl", .errmsg = true, .alias = "prctl", }, - { .name = "brk", .hexret = true, }, + { .name = "brk", .hexret = true, + .arg_scnprintf = { [0] = SCA_HEX, /* brk */ }, }, { .name = "mmap", .hexret = true, }, { .name = "connect", .errmsg = true, }, { .name = "fstat", .errmsg = true, .alias = "newfstat", }, { .name = "fstatat", .errmsg = true, .alias = "newfstatat", }, { .name = "futex", .errmsg = true, }, + { .name = "ioctl", .errmsg = true, + .arg_scnprintf = { [2] = SCA_HEX, /* arg */ }, }, { .name = "lstat", .errmsg = true, .alias = "newlstat", }, - { .name = "mmap", .hexret = true, }, + { .name = "mmap", .hexret = true, + .arg_scnprintf = { [0] = SCA_HEX, /* addr */ }, }, + { .name = "mprotect", .errmsg = true, + .arg_scnprintf = { [0] = SCA_HEX, /* addr */ }, }, { .name = "mremap", .hexret = true, }, + { .name = "munmap", .errmsg = true, + .arg_scnprintf = { [0] = SCA_HEX, /* addr */ }, }, { .name = "open", .errmsg = true, }, { .name = "poll", .errmsg = true, .timeout = true, }, { .name = "ppoll", .errmsg = true, .timeout = true, }, @@ -232,7 +243,9 @@ static int syscall__set_arg_fmts(struct syscall *sc) return -1; for (field = sc->tp_format->format.fields->next; field; field = field->next) { - if (field->flags & FIELD_IS_POINTER) + if (sc->fmt && sc->fmt->arg_scnprintf[idx]) + sc->arg_scnprintf[idx] = sc->fmt->arg_scnprintf[idx]; + else if (field->flags & FIELD_IS_POINTER) sc->arg_scnprintf[idx] = syscall_arg__scnprintf_hex; ++idx; } -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
