korg/linux
0
0
Fork 0
mirror of https://mirrors.bfsu.edu.cn/git/linux.git synced 2024-11-13 14:24:11 +08:00
Code Issues Packages Projects Releases Wiki Activity

perf trace beauty: Give syscall return beautifier more context

Browse Source 
We need the current thread and the trace internal state so that we can
use the fd beautifier to augment syscall returns, so use struct
syscall_arg with some fields that make sense on returns (val, thread,
trace).

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-lqag8e86ybidrh5zpqne05ov@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Arnaldo Carvalho de Melo 2017-07-14 15:16:54 -03:00
parent c2e539d287
commit 7ee5743404
4 changed files with 20 additions and 10 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

11
tools/perf/builtin-trace.c
View File

@ -918,7 +918,7 @@ struct thread_trace {
unsigned long pfmaj, pfmin;
char *entry_str;
double runtime_ms;
size_t (*ret_scnprintf)(unsigned long value, char *bf, size_t size);
size_t (*ret_scnprintf)(char *bf, size_t size, struct syscall_arg *arg);
struct {
unsigned long ptr;
short int entry_str_pos;
@ -971,7 +971,7 @@ fail:
void syscall_arg__set_ret_scnprintf(struct syscall_arg *arg,
size_t (*ret_scnprintf)(unsigned long val, char *bf, size_t size))
size_t (*ret_scnprintf)(char *bf, size_t size, struct syscall_arg *arg))
{
struct thread_trace *ttrace = thread__priv(arg->thread);
@ -1726,7 +1726,12 @@ signed_print:
fprintf(trace->output, ") = 0 Timeout");
else if (ttrace->ret_scnprintf) {
char bf[1024];
ttrace->ret_scnprintf(ret, bf, sizeof(bf));
struct syscall_arg arg = {
.val = ret,
.thread = thread,
.trace = trace,
};
ttrace->ret_scnprintf(bf, sizeof(bf), &arg);
ttrace->ret_scnprintf = NULL;
fprintf(trace->output, ") = %s", bf);
} else if (sc->fmt->hexret)

5
tools/perf/trace/beauty/beauty.h
View File

@ -46,6 +46,9 @@ size_t syscall_arg__scnprintf_fcntl_cmd(char *bf, size_t size, struct syscall_ar
size_t syscall_arg__scnprintf_fcntl_arg(char *bf, size_t size, struct syscall_arg *arg);
#define SCA_FCNTL_ARG syscall_arg__scnprintf_fcntl_arg
size_t syscall_arg__scnprintf_open_flags(char *bf, size_t size, struct syscall_arg *arg);
#define SCA_OPEN_FLAGS syscall_arg__scnprintf_open_flags
size_t syscall_arg__scnprintf_statx_flags(char *bf, size_t size, struct syscall_arg *arg);
#define SCA_STATX_FLAGS syscall_arg__scnprintf_statx_flags
@ -55,6 +58,6 @@ size_t syscall_arg__scnprintf_statx_mask(char *bf, size_t size, struct syscall_a
size_t open__scnprintf_flags(unsigned long flags, char *bf, size_t size);
void syscall_arg__set_ret_scnprintf(struct syscall_arg *arg,
size_t (*ret_scnprintf)(unsigned long val, char *bf, size_t size));
size_t (*ret_scnprintf)(char *bf, size_t size, struct syscall_arg *arg));
#endif /* _PERF_TRACE_BEAUTY_H */

9
tools/perf/trace/beauty/fcntl.c
View File

@ -15,14 +15,19 @@ static size_t fcntl__scnprintf_getfd(unsigned long val, char *bf, size_t size)
return scnprintf(bf, size, "%s", val ? "CLOEXEC" : "0");
}
static size_t syscall_arg__scnprintf_fcntl_getfd(char *bf, size_t size, struct syscall_arg *arg)
{
return fcntl__scnprintf_getfd(arg->val, bf, size);
}
size_t syscall_arg__scnprintf_fcntl_cmd(char *bf, size_t size, struct syscall_arg *arg)
{
if (arg->val == F_GETFL) {
syscall_arg__set_ret_scnprintf(arg, open__scnprintf_flags);
syscall_arg__set_ret_scnprintf(arg, syscall_arg__scnprintf_open_flags);
goto mask_arg;
}
if (arg->val == F_GETFD) {
syscall_arg__set_ret_scnprintf(arg, fcntl__scnprintf_getfd);
syscall_arg__set_ret_scnprintf(arg, syscall_arg__scnprintf_fcntl_getfd);
goto mask_arg;
}
/*

5
tools/perf/trace/beauty/open_flags.c
View File

@ -73,7 +73,7 @@ size_t open__scnprintf_flags(unsigned long flags, char *bf, size_t size)
return printed;
}
static size_t syscall_arg__scnprintf_open_flags(char *bf, size_t size, struct syscall_arg *arg)
size_t syscall_arg__scnprintf_open_flags(char *bf, size_t size, struct syscall_arg *arg)
{
int flags = arg->val;
@ -82,6 +82,3 @@ static size_t syscall_arg__scnprintf_open_flags(char *bf, size_t size, struct sy
return open__scnprintf_flags(flags, bf, size);
}
#define SCA_OPEN_FLAGS syscall_arg__scnprintf_open_flags