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authorArnaldo Carvalho de Melo2016-04-15 16:10:31 +0200
committerArnaldo Carvalho de Melo2016-04-15 18:14:20 +0200
commit5cf9c84e21067ec7a44648aedbc38c197d707258 (patch)
treefdb19d9eaad401c7fe94b3af96e776a03648310b /tools/perf/builtin-trace.c
parentperf trace: Do not print interrupted syscalls when using --duration (diff)
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perf trace: Introduce --min-stack filter
Counterpart to --max-stack, to help focusing on deeply nested calls. Can be combined with --duration, etc. E.g.: System wide syscall tracing looking for call stacks longer than 66: # trace --mmap-pages 32768 --filter-pid 2711 --call-graph dwarf,16384 --min-stack 66 Or more compactly: # trace -m 32768 --filt 2711 --call dwarf,16384 --min-st 66 363.027 ( 0.002 ms): gnome-shell/2287 poll(ufds: 0x7ffc5ea24230, nfds: 1, timeout_msecs: 4294967295 ) = 1 [0xf6fdd] (/usr/lib64/libc-2.22.so) _xcb_conn_wait+0x92 (/usr/lib64/libxcb.so.1.1.0) _xcb_out_send+0x4d (/usr/lib64/libxcb.so.1.1.0) xcb_writev+0x45 (/usr/lib64/libxcb.so.1.1.0) _XSend+0x19e (/usr/lib64/libX11.so.6.3.0) _XReply+0x82 (/usr/lib64/libX11.so.6.3.0) XSync+0x4d (/usr/lib64/libX11.so.6.3.0) dri3_bind_tex_image+0x42 (/usr/lib64/libGL.so.1.2.0) _cogl_winsys_texture_pixmap_x11_update+0x117 (/usr/lib64/libcogl.so.20.4.1) _cogl_texture_pixmap_x11_update+0x67 (/usr/lib64/libcogl.so.20.4.1) _cogl_texture_pixmap_x11_pre_paint+0x13 (/usr/lib64/libcogl.so.20.4.1) _cogl_pipeline_layer_pre_paint+0x5e (/usr/lib64/libcogl.so.20.4.1) _cogl_rectangles_validate_layer_cb+0x1b (/usr/lib64/libcogl.so.20.4.1) cogl_pipeline_foreach_layer+0xbe (/usr/lib64/libcogl.so.20.4.1) _cogl_framebuffer_draw_multitextured_rectangles+0x77 (/usr/lib64/libcogl.so.20.4.1) cogl_framebuffer_draw_multitextured_rectangle+0x51 (/usr/lib64/libcogl.so.20.4.1) paint_clipped_rectangle+0xb6 (/usr/lib64/libmutter.so.0.0.0) meta_shaped_texture_paint+0x3e3 (/usr/lib64/libmutter.so.0.0.0) _g_closure_invoke_va+0xb2 (/usr/lib64/libgobject-2.0.so.0.4600.2) g_signal_emit_valist+0xc0d (/usr/lib64/libgobject-2.0.so.0.4600.2) g_signal_emit+0x8f (/usr/lib64/libgobject-2.0.so.0.4600.2) clutter_actor_continue_paint+0x2bb (/usr/lib64/libclutter-1.0.so.0.2400.2) clutter_actor_paint.part.41+0x47b (/usr/lib64/libclutter-1.0.so.0.2400.2) clutter_actor_real_paint+0x20 (/usr/lib64/libclutter-1.0.so.0.2400.2) _g_closure_invoke_va+0xb2 (/usr/lib64/libgobject-2.0.so.0.4600.2) g_signal_emit_valist+0xc0d (/usr/lib64/libgobject-2.0.so.0.4600.2) g_signal_emit+0x8f (/usr/lib64/libgobject-2.0.so.0.4600.2) clutter_actor_continue_paint+0x2bb (/usr/lib64/libclutter-1.0.so.0.2400.2) clutter_actor_paint.part.41+0x47b (/usr/lib64/libclutter-1.0.so.0.2400.2) clutter_actor_real_paint+0x20 (/usr/lib64/libclutter-1.0.so.0.2400.2) meta_window_actor_paint+0x14b (/usr/lib64/libmutter.so.0.0.0) _g_closure_invoke_va+0xb2 (/usr/lib64/libgobject-2.0.so.0.4600.2) g_signal_emit_valist+0xc0d (/usr/lib64/libgobject-2.0.so.0.4600.2) g_signal_emit+0x8f (/usr/lib64/libgobject-2.0.so.0.4600.2) clutter_actor_continue_paint+0x2bb (/usr/lib64/libclutter-1.0.so.0.2400.2) clutter_actor_paint.part.41+0x47b (/usr/lib64/libclutter-1.0.so.0.2400.2) clutter_actor_real_paint+0x20 (/usr/lib64/libclutter-1.0.so.0.2400.2) meta_window_group_paint+0x19f (/usr/lib64/libmutter.so.0.0.0) _g_closure_invoke_va+0xb2 (/usr/lib64/libgobject-2.0.so.0.4600.2) g_signal_emit_valist+0xc0d (/usr/lib64/libgobject-2.0.so.0.4600.2) g_signal_emit+0x8f (/usr/lib64/libgobject-2.0.so.0.4600.2) clutter_actor_continue_paint+0x2bb (/usr/lib64/libclutter-1.0.so.0.2400.2) clutter_actor_paint.part.41+0x47b (/usr/lib64/libclutter-1.0.so.0.2400.2) [0x3d970] (/usr/lib64/gnome-shell/libgnome-shell.so) _g_closure_invoke_va+0xb2 (/usr/lib64/libgobject-2.0.so.0.4600.2) g_signal_emit_valist+0xc0d (/usr/lib64/libgobject-2.0.so.0.4600.2) g_signal_emit+0x8f (/usr/lib64/libgobject-2.0.so.0.4600.2) clutter_actor_continue_paint+0x2bb (/usr/lib64/libclutter-1.0.so.0.2400.2) clutter_actor_paint.part.41+0x47b (/usr/lib64/libclutter-1.0.so.0.2400.2) clutter_stage_paint+0x3a (/usr/lib64/libclutter-1.0.so.0.2400.2) meta_stage_paint+0x45 (/usr/lib64/libmutter.so.0.0.0) _g_closure_invoke_va+0x164 (/usr/lib64/libgobject-2.0.so.0.4600.2) g_signal_emit_valist+0xc0d (/usr/lib64/libgobject-2.0.so.0.4600.2) g_signal_emit+0x8f (/usr/lib64/libgobject-2.0.so.0.4600.2) clutter_actor_continue_paint+0x2bb (/usr/lib64/libclutter-1.0.so.0.2400.2) clutter_actor_paint.part.41+0x47b (/usr/lib64/libclutter-1.0.so.0.2400.2) _clutter_stage_do_paint+0x17b (/usr/lib64/libclutter-1.0.so.0.2400.2) clutter_stage_cogl_redraw+0x496 (/usr/lib64/libclutter-1.0.so.0.2400.2) _clutter_stage_do_update+0x117 (/usr/lib64/libclutter-1.0.so.0.2400.2) clutter_clock_dispatch+0x169 (/usr/lib64/libclutter-1.0.so.0.2400.2) g_main_context_dispatch+0x15a (/usr/lib64/libglib-2.0.so.0.4600.2) g_main_context_iterate.isra.29+0x1e0 (/usr/lib64/libglib-2.0.so.0.4600.2) g_main_loop_run+0xc2 (/usr/lib64/libglib-2.0.so.0.4600.2) meta_run+0x2c (/usr/lib64/libmutter.so.0.0.0) main+0x3f7 (/usr/bin/gnome-shell) __libc_start_main+0xf0 (/usr/lib64/libc-2.22.so) [0x2909] (/usr/bin/gnome-shell) 363.038 ( 0.006 ms): gnome-shell/2287 writev(fd: 5<socket:[32540]>, vec: 0x7ffc5ea243a0, vlen: 3 ) = 4 __GI___writev+0x2d (/usr/lib64/libc-2.22.so) _xcb_conn_wait+0x359 (/usr/lib64/libxcb.so.1.1.0) _xcb_out_send+0x4d (/usr/lib64/libxcb.so.1.1.0) xcb_writev+0x45 (/usr/lib64/libxcb.so.1.1.0) _XSend+0x19e (/usr/lib64/libX11.so.6.3.0) _XReply+0x82 (/usr/lib64/libX11.so.6.3.0) XSync+0x4d (/usr/lib64/libX11.so.6.3.0) dri3_bind_tex_image+0x42 (/usr/lib64/libGL.so.1.2.0) _cogl_winsys_texture_pixmap_x11_update+0x117 (/usr/lib64/libcogl.so.20.4.1) _cogl_texture_pixmap_x11_update+0x67 (/usr/lib64/libcogl.so.20.4.1) _cogl_texture_pixmap_x11_pre_paint+0x13 (/usr/lib64/libcogl.so.20.4.1) _cogl_pipeline_layer_pre_paint+0x5e (/usr/lib64/libcogl.so.20.4.1) _cogl_rectangles_validate_layer_cb+0x1b (/usr/lib64/libcogl.so.20.4.1) cogl_pipeline_foreach_layer+0xbe (/usr/lib64/libcogl.so.20.4.1) _cogl_framebuffer_draw_multitextured_rectangles+0x77 (/usr/lib64/libcogl.so.20.4.1) cogl_framebuffer_draw_multitextured_rectangle+0x51 (/usr/lib64/libcogl.so.20.4.1) paint_clipped_rectangle+0xb6 (/usr/lib64/libmutter.so.0.0.0) meta_shaped_texture_paint+0x3e3 (/usr/lib64/libmutter.so.0.0.0) _g_closure_invoke_va+0xb2 (/usr/lib64/libgobject-2.0.so.0.4600.2) g_signal_emit_valist+0xc0d (/usr/lib64/libgobject-2.0.so.0.4600.2) g_signal_emit+0x8f (/usr/lib64/libgobject-2.0.so.0.4600.2) clutter_actor_continue_paint+0x2bb (/usr/lib64/libclutter-1.0.so.0.2400.2) clutter_actor_paint.part.41+0x47b (/usr/lib64/libclutter-1.0.so.0.2400.2) clutter_actor_real_paint+0x20 (/usr/lib64/libclutter-1.0.so.0.2400.2) _g_closure_invoke_va+0xb2 (/usr/lib64/libgobject-2.0.so.0.4600.2) g_signal_emit_valist+0xc0d (/usr/lib64/libgobject-2.0.so.0.4600.2) g_signal_emit+0x8f (/usr/lib64/libgobject-2.0.so.0.4600.2) clutter_actor_continue_paint+0x2bb (/usr/lib64/libclutter-1.0.so.0.2400.2) clutter_actor_paint.part.41+0x47b (/usr/lib64/libclutter-1.0.so.0.2400.2) clutter_actor_real_paint+0x20 (/usr/lib64/libclutter-1.0.so.0.2400.2) meta_window_actor_paint+0x14b (/usr/lib64/libmutter.so.0.0.0) _g_closure_invoke_va+0xb2 (/usr/lib64/libgobject-2.0.so.0.4600.2) g_signal_emit_valist+0xc0d (/usr/lib64/libgobject-2.0.so.0.4600.2) g_signal_emit+0x8f (/usr/lib64/libgobject-2.0.so.0.4600.2) clutter_actor_continue_paint+0x2bb (/usr/lib64/libclutter-1.0.so.0.2400.2) clutter_actor_paint.part.41+0x47b (/usr/lib64/libclutter-1.0.so.0.2400.2) clutter_actor_real_paint+0x20 (/usr/lib64/libclutter-1.0.so.0.2400.2) meta_window_group_paint+0x19f (/usr/lib64/libmutter.so.0.0.0) _g_closure_invoke_va+0xb2 (/usr/lib64/libgobject-2.0.so.0.4600.2) g_signal_emit_valist+0xc0d (/usr/lib64/libgobject-2.0.so.0.4600.2) g_signal_emit+0x8f (/usr/lib64/libgobject-2.0.so.0.4600.2) clutter_actor_continue_paint+0x2bb (/usr/lib64/libclutter-1.0.so.0.2400.2) clutter_actor_paint.part.41+0x47b (/usr/lib64/libclutter-1.0.so.0.2400.2) [0x3d970] (/usr/lib64/gnome-shell/libgnome-shell.so) _g_closure_invoke_va+0xb2 (/usr/lib64/libgobject-2.0.so.0.4600.2) g_signal_emit_valist+0xc0d (/usr/lib64/libgobject-2.0.so.0.4600.2) g_signal_emit+0x8f (/usr/lib64/libgobject-2.0.so.0.4600.2) clutter_actor_continue_paint+0x2bb (/usr/lib64/libclutter-1.0.so.0.2400.2) clutter_actor_paint.part.41+0x47b (/usr/lib64/libclutter-1.0.so.0.2400.2) clutter_stage_paint+0x3a (/usr/lib64/libclutter-1.0.so.0.2400.2) meta_stage_paint+0x45 (/usr/lib64/libmutter.so.0.0.0) _g_closure_invoke_va+0x164 (/usr/lib64/libgobject-2.0.so.0.4600.2) g_signal_emit_valist+0xc0d (/usr/lib64/libgobject-2.0.so.0.4600.2) g_signal_emit+0x8f (/usr/lib64/libgobject-2.0.so.0.4600.2) clutter_actor_continue_paint+0x2bb (/usr/lib64/libclutter-1.0.so.0.2400.2) clutter_actor_paint.part.41+0x47b (/usr/lib64/libclutter-1.0.so.0.2400.2) _clutter_stage_do_paint+0x17b (/usr/lib64/libclutter-1.0.so.0.2400.2) clutter_stage_cogl_redraw+0x496 (/usr/lib64/libclutter-1.0.so.0.2400.2) _clutter_stage_do_update+0x117 (/usr/lib64/libclutter-1.0.so.0.2400.2) clutter_clock_dispatch+0x169 (/usr/lib64/libclutter-1.0.so.0.2400.2) g_main_context_dispatch+0x15a (/usr/lib64/libglib-2.0.so.0.4600.2) g_main_context_iterate.isra.29+0x1e0 (/usr/lib64/libglib-2.0.so.0.4600.2) g_main_loop_run+0xc2 (/usr/lib64/libglib-2.0.so.0.4600.2) meta_run+0x2c (/usr/lib64/libmutter.so.0.0.0) main+0x3f7 (/usr/bin/gnome-shell) __libc_start_main+0xf0 (/usr/lib64/libc-2.22.so) [0x2909] (/usr/bin/gnome-shell) 363.086 ( 0.042 ms): gnome-shell/2287 poll(ufds: 0x7ffc5ea24250, nfds: 1, timeout_msecs: 4294967295 ) = 1 [0xf6fdd] (/usr/lib64/libc-2.22.so) _xcb_conn_wait+0x92 (/usr/lib64/libxcb.so.1.1.0) wait_for_reply+0xb7 (/usr/lib64/libxcb.so.1.1.0) xcb_wait_for_reply+0x61 (/usr/lib64/libxcb.so.1.1.0) _XReply+0x127 (/usr/lib64/libX11.so.6.3.0) XSync+0x4d (/usr/lib64/libX11.so.6.3.0) dri3_bind_tex_image+0x42 (/usr/lib64/libGL.so.1.2.0) _cogl_winsys_texture_pixmap_x11_update+0x117 (/usr/lib64/libcogl.so.20.4.1) _cogl_texture_pixmap_x11_update+0x67 (/usr/lib64/libcogl.so.20.4.1) _cogl_texture_pixmap_x11_pre_paint+0x13 (/usr/lib64/libcogl.so.20.4.1) _cogl_pipeline_layer_pre_paint+0x5e (/usr/lib64/libcogl.so.20.4.1) _cogl_rectangles_validate_layer_cb+0x1b (/usr/lib64/libcogl.so.20.4.1) cogl_pipeline_foreach_layer+0xbe (/usr/lib64/libcogl.so.20.4.1) _cogl_framebuffer_draw_multitextured_rectangles+0x77 (/usr/lib64/libcogl.so.20.4.1) cogl_framebuffer_draw_multitextured_rectangle+0x51 (/usr/lib64/libcogl.so.20.4.1) paint_clipped_rectangle+0xb6 (/usr/lib64/libmutter.so.0.0.0) meta_shaped_texture_paint+0x3e3 (/usr/lib64/libmutter.so.0.0.0) _g_closure_invoke_va+0xb2 (/usr/lib64/libgobject-2.0.so.0.4600.2) g_signal_emit_valist+0xc0d (/usr/lib64/libgobject-2.0.so.0.4600.2) g_signal_emit+0x8f (/usr/lib64/libgobject-2.0.so.0.4600.2) clutter_actor_continue_paint+0x2bb (/usr/lib64/libclutter-1.0.so.0.2400.2) clutter_actor_paint.part.41+0x47b (/usr/lib64/libclutter-1.0.so.0.2400.2) clutter_actor_real_paint+0x20 (/usr/lib64/libclutter-1.0.so.0.2400.2) _g_closure_invoke_va+0xb2 (/usr/lib64/libgobject-2.0.so.0.4600.2) g_signal_emit_valist+0xc0d (/usr/lib64/libgobject-2.0.so.0.4600.2) g_signal_emit+0x8f (/usr/lib64/libgobject-2.0.so.0.4600.2) clutter_actor_continue_paint+0x2bb (/usr/lib64/libclutter-1.0.so.0.2400.2) clutter_actor_paint.part.41+0x47b (/usr/lib64/libclutter-1.0.so.0.2400.2) clutter_actor_real_paint+0x20 (/usr/lib64/libclutter-1.0.so.0.2400.2) meta_window_actor_paint+0x14b (/usr/lib64/libmutter.so.0.0.0) _g_closure_invoke_va+0xb2 (/usr/lib64/libgobject-2.0.so.0.4600.2) g_signal_emit_valist+0xc0d (/usr/lib64/libgobject-2.0.so.0.4600.2) g_signal_emit+0x8f (/usr/lib64/libgobject-2.0.so.0.4600.2) clutter_actor_continue_paint+0x2bb (/usr/lib64/libclutter-1.0.so.0.2400.2) clutter_actor_paint.part.41+0x47b (/usr/lib64/libclutter-1.0.so.0.2400.2) clutter_actor_real_paint+0x20 (/usr/lib64/libclutter-1.0.so.0.2400.2) meta_window_group_paint+0x19f (/usr/lib64/libmutter.so.0.0.0) _g_closure_invoke_va+0xb2 (/usr/lib64/libgobject-2.0.so.0.4600.2) g_signal_emit_valist+0xc0d (/usr/lib64/libgobject-2.0.so.0.4600.2) g_signal_emit+0x8f (/usr/lib64/libgobject-2.0.so.0.4600.2) clutter_actor_continue_paint+0x2bb (/usr/lib64/libclutter-1.0.so.0.2400.2) clutter_actor_paint.part.41+0x47b (/usr/lib64/libclutter-1.0.so.0.2400.2) [0x3d970] (/usr/lib64/gnome-shell/libgnome-shell.so) _g_closure_invoke_va+0xb2 (/usr/lib64/libgobject-2.0.so.0.4600.2) g_signal_emit_valist+0xc0d (/usr/lib64/libgobject-2.0.so.0.4600.2) g_signal_emit+0x8f (/usr/lib64/libgobject-2.0.so.0.4600.2) clutter_actor_continue_paint+0x2bb (/usr/lib64/libclutter-1.0.so.0.2400.2) clutter_actor_paint.part.41+0x47b (/usr/lib64/libclutter-1.0.so.0.2400.2) clutter_stage_paint+0x3a (/usr/lib64/libclutter-1.0.so.0.2400.2) meta_stage_paint+0x45 (/usr/lib64/libmutter.so.0.0.0) _g_closure_invoke_va+0x164 (/usr/lib64/libgobject-2.0.so.0.4600.2) g_signal_emit_valist+0xc0d (/usr/lib64/libgobject-2.0.so.0.4600.2) g_signal_emit+0x8f (/usr/lib64/libgobject-2.0.so.0.4600.2) clutter_actor_continue_paint+0x2bb (/usr/lib64/libclutter-1.0.so.0.2400.2) clutter_actor_paint.part.41+0x47b (/usr/lib64/libclutter-1.0.so.0.2400.2) _clutter_stage_do_paint+0x17b (/usr/lib64/libclutter-1.0.so.0.2400.2) clutter_stage_cogl_redraw+0x496 (/usr/lib64/libclutter-1.0.so.0.2400.2) _clutter_stage_do_update+0x117 (/usr/lib64/libclutter-1.0.so.0.2400.2) clutter_clock_dispatch+0x169 (/usr/lib64/libclutter-1.0.so.0.2400.2) g_main_context_dispatch+0x15a (/usr/lib64/libglib-2.0.so.0.4600.2) g_main_context_iterate.isra.29+0x1e0 (/usr/lib64/libglib-2.0.so.0.4600.2) g_main_loop_run+0xc2 (/usr/lib64/libglib-2.0.so.0.4600.2) meta_run+0x2c (/usr/lib64/libmutter.so.0.0.0) main+0x3f7 (/usr/bin/gnome-shell) __libc_start_main+0xf0 (/usr/lib64/libc-2.22.so) [0x2909] (/usr/bin/gnome-shell) Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Milian Wolff <milian.wolff@kdab.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Wang Nan <wangnan0@huawei.com> Link: http://lkml.kernel.org/n/tip-jncuxju9fibq2rl6olhqwjw6@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/builtin-trace.c')
-rw-r--r--tools/perf/builtin-trace.c55
1 files changed, 37 insertions, 18 deletions
diff --git a/tools/perf/builtin-trace.c b/tools/perf/builtin-trace.c
index 65f6abe75d71..6a64cb1344c7 100644
--- a/tools/perf/builtin-trace.c
+++ b/tools/perf/builtin-trace.c
@@ -108,6 +108,7 @@ struct trace {
proc_getname;
} stats;
unsigned int max_stack;
+ unsigned int min_stack;
bool not_ev_qualifier;
bool live;
bool full_time;
@@ -1849,7 +1850,7 @@ static int trace__sys_enter(struct trace *trace, struct perf_evsel *evsel,
goto out_put;
}
- if (!(trace->duration_filter || trace->summary_only))
+ if (!(trace->duration_filter || trace->summary_only || trace->min_stack))
trace__printf_interrupted_entry(trace, sample);
ttrace->entry_time = sample->time;
@@ -1860,7 +1861,7 @@ static int trace__sys_enter(struct trace *trace, struct perf_evsel *evsel,
args, trace, thread);
if (sc->is_exit) {
- if (!trace->duration_filter && !trace->summary_only) {
+ if (!(trace->duration_filter || trace->summary_only || trace->min_stack)) {
trace__fprintf_entry_head(trace, thread, 1, sample->time, trace->output);
fprintf(trace->output, "%-70s\n", ttrace->entry_str);
}
@@ -1880,26 +1881,26 @@ out_put:
return err;
}
-static int trace__fprintf_callchain(struct trace *trace, struct perf_evsel *evsel,
- struct perf_sample *sample)
+static int trace__resolve_callchain(struct trace *trace, struct perf_evsel *evsel,
+ struct perf_sample *sample,
+ struct callchain_cursor *cursor)
{
struct addr_location al;
+
+ if (machine__resolve(trace->host, &al, sample) < 0 ||
+ thread__resolve_callchain(al.thread, cursor, evsel, sample, NULL, NULL, trace->max_stack))
+ return -1;
+
+ return 0;
+}
+
+static int trace__fprintf_callchain(struct trace *trace, struct perf_sample *sample)
+{
/* TODO: user-configurable print_opts */
const unsigned int print_opts = EVSEL__PRINT_SYM |
EVSEL__PRINT_DSO |
EVSEL__PRINT_UNKNOWN_AS_ADDR;
- if (sample->callchain == NULL)
- return 0;
-
- if (machine__resolve(trace->host, &al, sample) < 0 ||
- thread__resolve_callchain(al.thread, &callchain_cursor, evsel,
- sample, NULL, NULL, trace->max_stack)) {
- pr_err("Problem processing %s callchain, skipping...\n",
- perf_evsel__name(evsel));
- return 0;
- }
-
return sample__fprintf_callchain(sample, 38, print_opts, &callchain_cursor, trace->output);
}
@@ -1910,7 +1911,7 @@ static int trace__sys_exit(struct trace *trace, struct perf_evsel *evsel,
long ret;
u64 duration = 0;
struct thread *thread;
- int id = perf_evsel__sc_tp_uint(evsel, id, sample), err = -1;
+ int id = perf_evsel__sc_tp_uint(evsel, id, sample), err = -1, callchain_ret = 0;
struct syscall *sc = trace__syscall_info(trace, evsel, id);
struct thread_trace *ttrace;
@@ -1942,6 +1943,15 @@ static int trace__sys_exit(struct trace *trace, struct perf_evsel *evsel,
} else if (trace->duration_filter)
goto out;
+ if (sample->callchain) {
+ callchain_ret = trace__resolve_callchain(trace, evsel, sample, &callchain_cursor);
+ if (callchain_ret == 0) {
+ if (callchain_cursor.nr < trace->min_stack)
+ goto out;
+ callchain_ret = 1;
+ }
+ }
+
if (trace->summary_only)
goto out;
@@ -1982,7 +1992,10 @@ signed_print:
fputc('\n', trace->output);
- trace__fprintf_callchain(trace, evsel, sample);
+ if (callchain_ret > 0)
+ trace__fprintf_callchain(trace, sample);
+ else if (callchain_ret < 0)
+ pr_err("Problem processing %s callchain, skipping...\n", perf_evsel__name(evsel));
out:
ttrace->entry_pending = false;
err = 0;
@@ -2131,7 +2144,10 @@ static int trace__event_handler(struct trace *trace, struct perf_evsel *evsel,
fprintf(trace->output, ")\n");
- trace__fprintf_callchain(trace, evsel, sample);
+ if (sample->callchain) {
+ if (trace__resolve_callchain(trace, evsel, sample, &callchain_cursor) == 0)
+ trace__fprintf_callchain(trace, sample);
+ }
return 0;
}
@@ -3082,6 +3098,9 @@ int cmd_trace(int argc, const char **argv, const char *prefix __maybe_unused)
&record_parse_callchain_opt),
OPT_BOOLEAN(0, "kernel-syscall-graph", &trace.kernel_syscallchains,
"Show the kernel callchains on the syscall exit path"),
+ OPT_UINTEGER(0, "min-stack", &trace.min_stack,
+ "Set the minimum stack depth when parsing the callchain, "
+ "anything below the specified depth will be ignored."),
OPT_UINTEGER(0, "max-stack", &trace.max_stack,
"Set the maximum stack depth when parsing the callchain, "
"anything beyond the specified depth will be ignored. "