From 7384083ba616092e62df7bfb4f2034730e631e40 Mon Sep 17 00:00:00 2001 From: Ravi Bangoria Date: Thu, 13 Feb 2020 12:13:03 +0530 Subject: perf annotate: Make perf config effective MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit perf default config set by user in [annotate] section is totally ignored by annotate code. Fix it. Before: $ ./perf config annotate.hide_src_code=true annotate.show_nr_jumps=true annotate.show_nr_samples=true $ ./perf annotate shash │ unsigned h = 0; │ movl $0x0,-0xc(%rbp) │ while (*s) │ ↓ jmp 44 │ h = 65599 * h + *s++; 11.33 │24: mov -0xc(%rbp),%eax 43.50 │ imul $0x1003f,%eax,%ecx │ mov -0x18(%rbp),%rax After: │ movl $0x0,-0xc(%rbp) │ ↓ jmp 44 1 │1 24: mov -0xc(%rbp),%eax 4 │ imul $0x1003f,%eax,%ecx │ mov -0x18(%rbp),%rax Note that we have removed show_nr_samples and show_total_period from annotation_options because they are not used. Instead of them we use symbol_conf.show_nr_samples and symbol_conf.show_total_period. Committer testing: Using 'perf annotate --stdio2' to use the TUI rendering but emitting the output to stdio: # perf config # # perf config annotate.hide_src_code=true # perf config annotate.hide_src_code=true # # perf config annotate.show_nr_jumps=true # perf config annotate.show_nr_samples=true # perf config annotate.hide_src_code=true annotate.show_nr_jumps=true annotate.show_nr_samples=true # # Before: # perf annotate --stdio2 ObjectInstance::weak_pointer_was_finalized Samples: 1 of event 'cycles', 4000 Hz, Event count (approx.): 830873, [percent: local period] ObjectInstance::weak_pointer_was_finalized() /usr/lib64/libgjs.so.0.0.0 Percent 00000000000609f0 : endbr64 cmpq $0x0,0x20(%rdi) ↓ je 10 xor %eax,%eax ← retq xchg %ax,%ax 100.00 10: push %rbp cmpq $0x0,0x18(%rdi) mov %rdi,%rbp ↓ jne 20 1b: xor %eax,%eax pop %rbp ← retq nop 20: lea 0x18(%rdi),%rdi → callq JS_UpdateWeakPointerAfterGC(JS::Heap /dev/null Samples: 1 of event 'cycles', 4000 Hz, Event count (approx.): 830873, [percent: local period] ObjectInstance::weak_pointer_was_finalized() /usr/lib64/libgjs.so.0.0.0 Samples endbr64 cmpq $0x0,0x20(%rdi) ↓ je 10 xor %eax,%eax ← retq xchg %ax,%ax 1 1 10: push %rbp cmpq $0x0,0x18(%rdi) mov %rdi,%rbp ↓ jne 20 1 1b: xor %eax,%eax pop %rbp ← retq nop 1 20: lea 0x18(%rdi),%rdi → callq JS_UpdateWeakPointerAfterGC(JS::Heap /dev/null Samples: 1 of event 'cycles', 4000 Hz, Event count (approx.): 830873, [percent: local period] ObjectInstance::weak_pointer_was_finalized() /usr/lib64/libgjs.so.0.0.0 Samples endbr64 cmpq $0x0,0x20(%rdi) ↓ je 10 xor %eax,%eax ← retq xchg %ax,%ax 1 10: push %rbp cmpq $0x0,0x18(%rdi) mov %rdi,%rbp ↓ jne 20 1b: xor %eax,%eax pop %rbp ← retq nop 20: lea 0x18(%rdi),%rdi → callq JS_UpdateWeakPointerAfterGC(JS::Heap Tested-by: Arnaldo Carvalho de Melo Cc: Adrian Hunter Cc: Alexey Budankov Cc: Changbin Du Cc: Ian Rogers Cc: Jin Yao Cc: Jiri Olsa Cc: Leo Yan Cc: Namhyung Kim Cc: Song Liu Cc: Taeung Song Cc: Thomas Richter Cc: Yisheng Xie Link: http://lore.kernel.org/lkml/20200213064306.160480-6-ravi.bangoria@linux.ibm.com Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/builtin-annotate.c | 2 +- tools/perf/builtin-report.c | 2 +- tools/perf/builtin-top.c | 2 +- tools/perf/util/annotate.c | 78 ++++++++++++++++--------------------------- tools/perf/util/annotate.h | 4 +-- 5 files changed, 33 insertions(+), 55 deletions(-) diff --git a/tools/perf/builtin-annotate.c b/tools/perf/builtin-annotate.c index ff61795a4d13..ea89077bb8e0 100644 --- a/tools/perf/builtin-annotate.c +++ b/tools/perf/builtin-annotate.c @@ -605,7 +605,7 @@ int cmd_annotate(int argc, const char **argv) if (ret < 0) goto out_delete; - annotation_config__init(); + annotation_config__init(&annotate.opts); symbol_conf.try_vmlinux_path = true; diff --git a/tools/perf/builtin-report.c b/tools/perf/builtin-report.c index 9483b3f0cae3..72a12b69f120 100644 --- a/tools/perf/builtin-report.c +++ b/tools/perf/builtin-report.c @@ -1507,7 +1507,7 @@ repeat: symbol_conf.priv_size += sizeof(u32); symbol_conf.sort_by_name = true; } - annotation_config__init(); + annotation_config__init(&report.annotation_opts); } if (symbol__init(&session->header.env) < 0) diff --git a/tools/perf/builtin-top.c b/tools/perf/builtin-top.c index 8affcab75604..cc26aeab6a66 100644 --- a/tools/perf/builtin-top.c +++ b/tools/perf/builtin-top.c @@ -1683,7 +1683,7 @@ int cmd_top(int argc, const char **argv) if (status < 0) goto out_delete_evlist; - annotation_config__init(); + annotation_config__init(&top.annotation_opts); symbol_conf.try_vmlinux_path = (symbol_conf.vmlinux_name == NULL); status = symbol__init(NULL); diff --git a/tools/perf/util/annotate.c b/tools/perf/util/annotate.c index f0741daf94ef..3b79da595db6 100644 --- a/tools/perf/util/annotate.c +++ b/tools/perf/util/annotate.c @@ -3094,66 +3094,46 @@ out_free_offsets: return err; } -#define ANNOTATION__CFG(n) \ - { .name = #n, .value = &annotation__default_options.n, } - -/* - * Keep the entries sorted, they are bsearch'ed - */ -static struct annotation_config { - const char *name; - void *value; -} annotation__configs[] = { - ANNOTATION__CFG(hide_src_code), - ANNOTATION__CFG(jump_arrows), - ANNOTATION__CFG(offset_level), - ANNOTATION__CFG(show_linenr), - ANNOTATION__CFG(show_nr_jumps), - ANNOTATION__CFG(show_nr_samples), - ANNOTATION__CFG(show_total_period), - ANNOTATION__CFG(use_offset), -}; - -#undef ANNOTATION__CFG - -static int annotation_config__cmp(const void *name, const void *cfgp) +static int annotation__config(const char *var, const char *value, void *data) { - const struct annotation_config *cfg = cfgp; - - return strcmp(name, cfg->name); -} - -static int annotation__config(const char *var, const char *value, - void *data __maybe_unused) -{ - struct annotation_config *cfg; - const char *name; + struct annotation_options *opt = data; if (!strstarts(var, "annotate.")) return 0; - name = var + 9; - cfg = bsearch(name, annotation__configs, ARRAY_SIZE(annotation__configs), - sizeof(struct annotation_config), annotation_config__cmp); - - if (cfg == NULL) - pr_debug("%s variable unknown, ignoring...", var); - else if (strcmp(var, "annotate.offset_level") == 0) { - perf_config_int(cfg->value, name, value); - - if (*(int *)cfg->value > ANNOTATION__MAX_OFFSET_LEVEL) - *(int *)cfg->value = ANNOTATION__MAX_OFFSET_LEVEL; - else if (*(int *)cfg->value < ANNOTATION__MIN_OFFSET_LEVEL) - *(int *)cfg->value = ANNOTATION__MIN_OFFSET_LEVEL; + if (!strcmp(var, "annotate.offset_level")) { + perf_config_u8(&opt->offset_level, "offset_level", value); + + if (opt->offset_level > ANNOTATION__MAX_OFFSET_LEVEL) + opt->offset_level = ANNOTATION__MAX_OFFSET_LEVEL; + else if (opt->offset_level < ANNOTATION__MIN_OFFSET_LEVEL) + opt->offset_level = ANNOTATION__MIN_OFFSET_LEVEL; + } else if (!strcmp(var, "annotate.hide_src_code")) { + opt->hide_src_code = perf_config_bool("hide_src_code", value); + } else if (!strcmp(var, "annotate.jump_arrows")) { + opt->jump_arrows = perf_config_bool("jump_arrows", value); + } else if (!strcmp(var, "annotate.show_linenr")) { + opt->show_linenr = perf_config_bool("show_linenr", value); + } else if (!strcmp(var, "annotate.show_nr_jumps")) { + opt->show_nr_jumps = perf_config_bool("show_nr_jumps", value); + } else if (!strcmp(var, "annotate.show_nr_samples")) { + symbol_conf.show_nr_samples = perf_config_bool("show_nr_samples", + value); + } else if (!strcmp(var, "annotate.show_total_period")) { + symbol_conf.show_total_period = perf_config_bool("show_total_period", + value); + } else if (!strcmp(var, "annotate.use_offset")) { + opt->use_offset = perf_config_bool("use_offset", value); } else { - *(bool *)cfg->value = perf_config_bool(name, value); + pr_debug("%s variable unknown, ignoring...", var); } + return 0; } -void annotation_config__init(void) +void annotation_config__init(struct annotation_options *opt) { - perf_config(annotation__config, NULL); + perf_config(annotation__config, opt); } static unsigned int parse_percent_type(char *str1, char *str2) diff --git a/tools/perf/util/annotate.h b/tools/perf/util/annotate.h index 6237c2cc582d..8e54184b43dc 100644 --- a/tools/perf/util/annotate.h +++ b/tools/perf/util/annotate.h @@ -83,8 +83,6 @@ struct annotation_options { full_path, show_linenr, show_nr_jumps, - show_nr_samples, - show_total_period, show_minmax_cycle, show_asm_raw, annotate_src; @@ -413,7 +411,7 @@ static inline int symbol__tui_annotate(struct map_symbol *ms __maybe_unused, } #endif -void annotation_config__init(void); +void annotation_config__init(struct annotation_options *opt); int annotate_parse_percent_type(const struct option *opt, const char *_str, int unset); -- cgit v1.2.3