diff options
Diffstat (limited to 'tools')
| -rw-r--r-- | tools/perf/Makefile | 8 | ||||
| -rw-r--r-- | tools/perf/builtin-report.c | 17 | ||||
| -rw-r--r-- | tools/perf/builtin-stat.c | 35 | ||||
| -rw-r--r-- | tools/perf/builtin-test.c | 30 | ||||
| -rw-r--r-- | tools/perf/util/header.c | 2 | ||||
| -rw-r--r-- | tools/perf/util/parse-events.l | 2 | ||||
| -rw-r--r-- | tools/perf/util/symbol.c | 13 | ||||
| -rwxr-xr-x | tools/testing/ktest/ktest.pl | 12 |
8 files changed, 93 insertions, 26 deletions
diff --git a/tools/perf/Makefile b/tools/perf/Makefile index 4734f41f801d..398094c3d3c9 100644 --- a/tools/perf/Makefile +++ b/tools/perf/Makefile @@ -201,8 +201,8 @@ endif export PERL_PATH -FLEX = $(CROSS_COMPILE)flex -BISON= $(CROSS_COMPILE)bison +FLEX = flex +BISON= bison $(OUTPUT)util/parse-events-flex.c: util/parse-events.l $(QUIET_FLEX)$(FLEX) --header-file=$(OUTPUT)util/parse-events-flex.h -t util/parse-events.l > $(OUTPUT)util/parse-events-flex.c @@ -737,10 +737,10 @@ $(OUTPUT)perf.o perf.spec \ # over the general rule for .o $(OUTPUT)util/%-flex.o: $(OUTPUT)util/%-flex.c $(OUTPUT)PERF-CFLAGS - $(QUIET_CC)$(CC) -o $@ -c $(ALL_CFLAGS) -Iutil/ -Wno-redundant-decls -Wno-switch-default -Wno-unused-function $< + $(QUIET_CC)$(CC) -o $@ -c $(ALL_CFLAGS) -Iutil/ -w $< $(OUTPUT)util/%-bison.o: $(OUTPUT)util/%-bison.c $(OUTPUT)PERF-CFLAGS - $(QUIET_CC)$(CC) -o $@ -c $(ALL_CFLAGS) -DYYENABLE_NLS=0 -DYYLTYPE_IS_TRIVIAL=0 -Iutil/ -Wno-redundant-decls -Wno-switch-default -Wno-unused-function $< + $(QUIET_CC)$(CC) -o $@ -c $(ALL_CFLAGS) -DYYENABLE_NLS=0 -DYYLTYPE_IS_TRIVIAL=0 -Iutil/ -w $< $(OUTPUT)%.o: %.c $(OUTPUT)PERF-CFLAGS $(QUIET_CC)$(CC) -o $@ -c $(ALL_CFLAGS) $< diff --git a/tools/perf/builtin-report.c b/tools/perf/builtin-report.c index 74776558ddfb..d58e41445d0d 100644 --- a/tools/perf/builtin-report.c +++ b/tools/perf/builtin-report.c @@ -377,16 +377,23 @@ static int __cmd_report(struct perf_report *rep) (kernel_map->dso->hit && (kernel_kmap->ref_reloc_sym == NULL || kernel_kmap->ref_reloc_sym->addr == 0))) { - const struct dso *kdso = kernel_map->dso; + const char *desc = + "As no suitable kallsyms nor vmlinux was found, kernel samples\n" + "can't be resolved."; + + if (kernel_map) { + const struct dso *kdso = kernel_map->dso; + if (!RB_EMPTY_ROOT(&kdso->symbols[MAP__FUNCTION])) { + desc = "If some relocation was applied (e.g. " + "kexec) symbols may be misresolved."; + } + } ui__warning( "Kernel address maps (/proc/{kallsyms,modules}) were restricted.\n\n" "Check /proc/sys/kernel/kptr_restrict before running 'perf record'.\n\n%s\n\n" "Samples in kernel modules can't be resolved as well.\n\n", - RB_EMPTY_ROOT(&kdso->symbols[MAP__FUNCTION]) ? -"As no suitable kallsyms nor vmlinux was found, kernel samples\n" -"can't be resolved." : -"If some relocation was applied (e.g. kexec) symbols may be misresolved."); + desc); } if (dump_trace) { diff --git a/tools/perf/builtin-stat.c b/tools/perf/builtin-stat.c index 0f4b51ae4be7..62ae30d34fa6 100644 --- a/tools/perf/builtin-stat.c +++ b/tools/perf/builtin-stat.c @@ -282,6 +282,8 @@ static int create_perf_stat_counter(struct perf_evsel *evsel, { struct perf_event_attr *attr = &evsel->attr; struct xyarray *group_fd = NULL; + bool exclude_guest_missing = false; + int ret; if (group && evsel != first) group_fd = first->fd; @@ -292,16 +294,39 @@ static int create_perf_stat_counter(struct perf_evsel *evsel, attr->inherit = !no_inherit; - if (perf_target__has_cpu(&target)) - return perf_evsel__open_per_cpu(evsel, evsel_list->cpus, - group, group_fd); +retry: + if (exclude_guest_missing) + evsel->attr.exclude_guest = evsel->attr.exclude_host = 0; + + if (perf_target__has_cpu(&target)) { + ret = perf_evsel__open_per_cpu(evsel, evsel_list->cpus, + group, group_fd); + if (ret) + goto check_ret; + return 0; + } + if (!perf_target__has_task(&target) && (!group || evsel == first)) { attr->disabled = 1; attr->enable_on_exec = 1; } - return perf_evsel__open_per_thread(evsel, evsel_list->threads, - group, group_fd); + ret = perf_evsel__open_per_thread(evsel, evsel_list->threads, + group, group_fd); + if (!ret) + return 0; + /* fall through */ +check_ret: + if (ret && errno == EINVAL) { + if (!exclude_guest_missing && + (evsel->attr.exclude_guest || evsel->attr.exclude_host)) { + pr_debug("Old kernel, cannot exclude " + "guest or host samples.\n"); + exclude_guest_missing = true; + goto retry; + } + } + return ret; } /* diff --git a/tools/perf/builtin-test.c b/tools/perf/builtin-test.c index 4eaa665fd32b..6c47376e29d8 100644 --- a/tools/perf/builtin-test.c +++ b/tools/perf/builtin-test.c @@ -851,6 +851,28 @@ static int test__checkevent_symbolic_name_modifier(struct perf_evlist *evlist) return test__checkevent_symbolic_name(evlist); } +static int test__checkevent_exclude_host_modifier(struct perf_evlist *evlist) +{ + struct perf_evsel *evsel = list_entry(evlist->entries.next, + struct perf_evsel, node); + + TEST_ASSERT_VAL("wrong exclude guest", !evsel->attr.exclude_guest); + TEST_ASSERT_VAL("wrong exclude host", evsel->attr.exclude_host); + + return test__checkevent_symbolic_name(evlist); +} + +static int test__checkevent_exclude_guest_modifier(struct perf_evlist *evlist) +{ + struct perf_evsel *evsel = list_entry(evlist->entries.next, + struct perf_evsel, node); + + TEST_ASSERT_VAL("wrong exclude guest", evsel->attr.exclude_guest); + TEST_ASSERT_VAL("wrong exclude host", !evsel->attr.exclude_host); + + return test__checkevent_symbolic_name(evlist); +} + static int test__checkevent_symbolic_alias_modifier(struct perf_evlist *evlist) { struct perf_evsel *evsel = list_entry(evlist->entries.next, @@ -1091,6 +1113,14 @@ static struct test__event_st { .name = "r1,syscalls:sys_enter_open:k,1:1:hp", .check = test__checkevent_list, }, + { + .name = "instructions:G", + .check = test__checkevent_exclude_host_modifier, + }, + { + .name = "instructions:H", + .check = test__checkevent_exclude_guest_modifier, + }, }; #define TEST__EVENTS_CNT (sizeof(test__events) / sizeof(struct test__event_st)) diff --git a/tools/perf/util/header.c b/tools/perf/util/header.c index 6e618ba21382..538598012139 100644 --- a/tools/perf/util/header.c +++ b/tools/perf/util/header.c @@ -291,7 +291,7 @@ int build_id_cache__add_s(const char *sbuild_id, const char *debugdir, if (mkdir_p(filename, 0755)) goto out_free; - snprintf(filename + len, sizeof(filename) - len, "/%s", sbuild_id); + snprintf(filename + len, size - len, "/%s", sbuild_id); if (access(filename, F_OK)) { if (is_kallsyms) { diff --git a/tools/perf/util/parse-events.l b/tools/perf/util/parse-events.l index 05d766e3ecb5..1fcf1bbc5458 100644 --- a/tools/perf/util/parse-events.l +++ b/tools/perf/util/parse-events.l @@ -54,7 +54,7 @@ num_dec [0-9]+ num_hex 0x[a-fA-F0-9]+ num_raw_hex [a-fA-F0-9]+ name [a-zA-Z_*?][a-zA-Z0-9_*?]* -modifier_event [ukhp]{1,5} +modifier_event [ukhpGH]{1,8} modifier_bp [rwx] %% diff --git a/tools/perf/util/symbol.c b/tools/perf/util/symbol.c index c0a028c3ebaf..ab9867b2b433 100644 --- a/tools/perf/util/symbol.c +++ b/tools/perf/util/symbol.c @@ -977,8 +977,9 @@ static Elf_Scn *elf_section_by_name(Elf *elf, GElf_Ehdr *ep, * And always look at the original dso, not at debuginfo packages, that * have the PLT data stripped out (shdr_rel_plt.sh_type == SHT_NOBITS). */ -static int dso__synthesize_plt_symbols(struct dso *dso, struct map *map, - symbol_filter_t filter) +static int +dso__synthesize_plt_symbols(struct dso *dso, char *name, struct map *map, + symbol_filter_t filter) { uint32_t nr_rel_entries, idx; GElf_Sym sym; @@ -993,10 +994,7 @@ static int dso__synthesize_plt_symbols(struct dso *dso, struct map *map, char sympltname[1024]; Elf *elf; int nr = 0, symidx, fd, err = 0; - char name[PATH_MAX]; - snprintf(name, sizeof(name), "%s%s", - symbol_conf.symfs, dso->long_name); fd = open(name, O_RDONLY); if (fd < 0) goto out; @@ -1703,8 +1701,9 @@ restart: continue; if (ret > 0) { - int nr_plt = dso__synthesize_plt_symbols(dso, map, - filter); + int nr_plt; + + nr_plt = dso__synthesize_plt_symbols(dso, name, map, filter); if (nr_plt > 0) ret += nr_plt; break; diff --git a/tools/testing/ktest/ktest.pl b/tools/testing/ktest/ktest.pl index 95d6a6f7c33a..4915408f6a98 100755 --- a/tools/testing/ktest/ktest.pl +++ b/tools/testing/ktest/ktest.pl @@ -183,6 +183,9 @@ my %force_config; # do not force reboots on config problems my $no_reboot = 1; +# reboot on success +my $reboot_success = 0; + my %option_map = ( "MACHINE" => \$machine, "SSH_USER" => \$ssh_user, @@ -2192,7 +2195,7 @@ sub run_bisect { } # Are we looking for where it worked, not failed? - if ($reverse_bisect) { + if ($reverse_bisect && $ret >= 0) { $ret = !$ret; } @@ -3469,6 +3472,7 @@ for (my $i = 1; $i <= $opt{"NUM_TESTS"}; $i++) { # Do not reboot on failing test options $no_reboot = 1; + $reboot_success = 0; $iteration = $i; @@ -3554,9 +3558,11 @@ for (my $i = 1; $i <= $opt{"NUM_TESTS"}; $i++) { die "failed to checkout $checkout"; } + $no_reboot = 0; + # A test may opt to not reboot the box if ($reboot_on_success) { - $no_reboot = 0; + $reboot_success = 1; } if ($test_type eq "bisect") { @@ -3600,7 +3606,7 @@ for (my $i = 1; $i <= $opt{"NUM_TESTS"}; $i++) { if ($opt{"POWEROFF_ON_SUCCESS"}) { halt; -} elsif ($opt{"REBOOT_ON_SUCCESS"} && !do_not_reboot) { +} elsif ($opt{"REBOOT_ON_SUCCESS"} && !do_not_reboot && $reboot_success) { reboot_to_good; } elsif (defined($switch_to_good)) { # still need to get to the good kernel |