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author | Jin Yao <yao.jin@linux.intel.com> | 2017-03-26 04:34:28 +0800 |
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committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2017-03-27 12:02:22 -0300 |
commit | 0db64dd060f7fd77921be8f10fa9f7a5f49a3a43 (patch) | |
tree | 56d80d14a9f5394d47b6638435b35334295d339d /tools/perf/ui/stdio | |
parent | f3a60646cc3e0524d8f1083db1da7532a1590b40 (diff) | |
download | op-kernel-dev-0db64dd060f7fd77921be8f10fa9f7a5f49a3a43.zip op-kernel-dev-0db64dd060f7fd77921be8f10fa9f7a5f49a3a43.tar.gz |
perf report: Show inline stack for stdio mode
If the address belongs to an inlined function, the source information
back to the first non-inlined function will be printed.
For example:
1. Show inlined function name
perf report --stdio -g function --inline
0.69% 0.00% inline ld-2.23.so [.] dl_main
|
---dl_main
|
--0.56%--_dl_relocate_object
_dl_relocate_object (inline)
elf_dynamic_do_Rela (inline)
2. Show the file/line information
perf report --stdio -g address --inline
0.69% 0.00% inline ld-2.23.so [.] _dl_start_user
|
---_dl_start_user .:0
_dl_start rtld.c:307
/build/glibc-GKVZIf/glibc-2.23/elf/rtld.c:413 (inline)
_dl_sysdep_start dl-sysdep.c:250
|
--0.56%--dl_main rtld.c:2076
Committer tests:
# perf record --call-graph dwarf ~/bin/perf stat usleep 1
Performance counter stats for 'usleep 1':
0.443020 task-clock (msec) # 0.449 CPUs utilized
1 context-switches # 0.002 M/sec
0 cpu-migrations # 0.000 K/sec
52 page-faults # 0.117 M/sec
1,049,423 cycles # 2.369 GHz
801,456 instructions # 0.76 insn per cycle
155,609 branches # 351.246 M/sec
7,026 branch-misses # 4.52% of all branches
0.000987570 seconds time elapsed
[ perf record: Woken up 2 times to write data ]
[ perf record: Captured and wrote 0.553 MB perf.data (66 samples) ]
# perf report --stdio --inline fs__get_mountpoint
<SNIP>
1.73% 0.00% perf perf [.] fs__get_mountpoint
|
---fs__get_mountpoint
fs__get_mountpoint (inline)
fs__check_mounts (inline)
__statfs
entry_SYSCALL_64
sys_statfs
SYSC_statfs
user_statfs
user_path_at_empty
filename_lookup
path_lookupat
link_path_walk
inode_permission
__inode_permission
kernfs_iop_permission
kernfs_refresh_inode
security_inode_notifysecctx
selinux_inode_notifysecctx
selinux_inode_setsecurity
security_context_to_sid
security_context_to_sid_core
string_to_context_struct
symcmp
Signed-off-by: Yao Jin <yao.jin@linux.intel.com>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Tested-by: Milian Wolff <milian.wolff@kdab.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kan Liang <kan.liang@intel.com>
Link: http://lkml.kernel.org/r/1490474069-15823-5-git-send-email-yao.jin@linux.intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/ui/stdio')
-rw-r--r-- | tools/perf/ui/stdio/hist.c | 85 |
1 files changed, 84 insertions, 1 deletions
diff --git a/tools/perf/ui/stdio/hist.c b/tools/perf/ui/stdio/hist.c index 668f4ae..6128f48 100644 --- a/tools/perf/ui/stdio/hist.c +++ b/tools/perf/ui/stdio/hist.c @@ -17,6 +17,66 @@ static size_t callchain__fprintf_left_margin(FILE *fp, int left_margin) return ret; } +static size_t inline__fprintf(struct map *map, u64 ip, int left_margin, + int depth, int depth_mask, FILE *fp) +{ + struct dso *dso; + struct inline_node *node; + struct inline_list *ilist; + int ret = 0, i; + + if (map == NULL) + return 0; + + dso = map->dso; + if (dso == NULL) + return 0; + + if (dso->kernel != DSO_TYPE_USER) + return 0; + + node = dso__parse_addr_inlines(dso, + map__rip_2objdump(map, ip)); + if (node == NULL) + return 0; + + list_for_each_entry(ilist, &node->val, list) { + if ((ilist->filename != NULL) || (ilist->funcname != NULL)) { + ret += callchain__fprintf_left_margin(fp, left_margin); + + for (i = 0; i < depth; i++) { + if (depth_mask & (1 << i)) + ret += fprintf(fp, "|"); + else + ret += fprintf(fp, " "); + ret += fprintf(fp, " "); + } + + if (callchain_param.key == CCKEY_ADDRESS) { + if (ilist->filename != NULL) + ret += fprintf(fp, "%s:%d (inline)", + ilist->filename, + ilist->line_nr); + else + ret += fprintf(fp, "??"); + } else if (ilist->funcname != NULL) + ret += fprintf(fp, "%s (inline)", + ilist->funcname); + else if (ilist->filename != NULL) + ret += fprintf(fp, "%s:%d (inline)", + ilist->filename, + ilist->line_nr); + else + ret += fprintf(fp, "??"); + + ret += fprintf(fp, "\n"); + } + } + + inline_node__delete(node); + return ret; +} + static size_t ipchain__fprintf_graph_line(FILE *fp, int depth, int depth_mask, int left_margin) { @@ -78,6 +138,10 @@ static size_t ipchain__fprintf_graph(FILE *fp, struct callchain_node *node, fputs(str, fp); fputc('\n', fp); free(alloc_str); + + if (symbol_conf.inline_name) + ret += inline__fprintf(chain->ms.map, chain->ip, + left_margin, depth, depth_mask, fp); return ret; } @@ -229,6 +293,7 @@ static size_t callchain__fprintf_graph(FILE *fp, struct rb_root *root, if (!i++ && field_order == NULL && sort_order && !prefixcmp(sort_order, "sym")) continue; + if (!printed) { ret += callchain__fprintf_left_margin(fp, left_margin); ret += fprintf(fp, "|\n"); @@ -251,6 +316,13 @@ static size_t callchain__fprintf_graph(FILE *fp, struct rb_root *root, if (++entries_printed == callchain_param.print_limit) break; + + if (symbol_conf.inline_name) + ret += inline__fprintf(chain->ms.map, + chain->ip, + left_margin, + 0, 0, + fp); } root = &cnode->rb_root; } @@ -529,6 +601,8 @@ static int hist_entry__fprintf(struct hist_entry *he, size_t size, bool use_callchain) { int ret; + int callchain_ret = 0; + int inline_ret = 0; struct perf_hpp hpp = { .buf = bf, .size = size, @@ -547,7 +621,16 @@ static int hist_entry__fprintf(struct hist_entry *he, size_t size, ret = fprintf(fp, "%s\n", bf); if (use_callchain) - ret += hist_entry_callchain__fprintf(he, total_period, 0, fp); + callchain_ret = hist_entry_callchain__fprintf(he, total_period, + 0, fp); + + if (callchain_ret == 0 && symbol_conf.inline_name) { + inline_ret = inline__fprintf(he->ms.map, he->ip, 0, 0, 0, fp); + ret += inline_ret; + if (inline_ret > 0) + ret += fprintf(fp, "\n"); + } else + ret += callchain_ret; return ret; } |