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charset="utf-8" Before: perf $ ./perf trace -e timer:hrtimer_start --filter=3D'mode!=3DHRTIMER_MODE= _ABS_PINNED_HARD' --max-events=3D1 No resolver (strtoul) for "mode" in "timer:hrtimer_start", can't set filter= "(mode!=3DHRTIMER_MODE_ABS_PINNED_HARD) && (common_pid !=3D 281988)" After: perf $ ./perf trace -e timer:hrtimer_start --filter=3D'mode!=3DHRTIMER_MODE= _ABS_PINNED_HARD' --max-events=3D1 0.000 :0/0 timer:hrtimer_start(hrtimer: 0xffff9498a6ca5f18, function: = 0xffffffffa77a5be0, expires: 12351248764875, softexpires: 12351248764875, m= ode: HRTIMER_MODE_ABS) && and ||: perf $ ./perf trace -e timer:hrtimer_start --filter=3D'mode !=3D HRTIMER_MO= DE_ABS_PINNED_HARD && mode !=3D HRTIMER_MODE_ABS' --max-events=3D1 0.000 Hyprland/534 timer:hrtimer_start(hrtimer: 0xffff9497801a84d0, fu= nction: 0xffffffffc04cdbe0, expires: 12639434638458, softexpires: 126394336= 38458, mode: HRTIMER_MODE_REL) perf $ ./perf trace -e timer:hrtimer_start --filter=3D'mode =3D=3D HRTIMER_= MODE_REL || mode =3D=3D HRTIMER_MODE_PINNED' --max-events=3D1 0.000 ldlck-test/60639 timer:hrtimer_start(hrtimer: 0xffffb16404ee7bf8= , function: 0xffffffffa7790420, expires: 12772614418016, softexpires: 12772= 614368016, mode: HRTIMER_MODE_REL) Switching it up, using both enum name and integer value(--filter=3D'mode = =3D=3D HRTIMER_MODE_ABS_PINNED_HARD || mode =3D=3D 0'): perf $ ./perf trace -e timer:hrtimer_start --filter=3D'mode =3D=3D HRTIMER_= MODE_ABS_PINNED_HARD || mode =3D=3D 0' --max-events=3D3 0.000 :0/0 timer:hrtimer_start(hrtimer: 0xffff9498a6ca5f18, function: = 0xffffffffa77a5be0, expires: 12601748739825, softexpires: 12601748739825, m= ode: HRTIMER_MODE_ABS_PINNED_HARD) 0.036 :0/0 timer:hrtimer_start(hrtimer: 0xffff9498a6ca5f18, function: = 0xffffffffa77a5be0, expires: 12518758748124, softexpires: 12518758748124, m= ode: HRTIMER_MODE_ABS_PINNED_HARD) 0.172 tmux: server/41881 timer:hrtimer_start(hrtimer: 0xffffb164081e78= 38, function: 0xffffffffa7790420, expires: 12518768255836, softexpires: 125= 18768205836, mode: HRTIMER_MODE_ABS) P.S. perf $ pahole hrtimer_mode enum hrtimer_mode { HRTIMER_MODE_ABS =3D 0, HRTIMER_MODE_REL =3D 1, HRTIMER_MODE_PINNED =3D 2, HRTIMER_MODE_SOFT =3D 4, HRTIMER_MODE_HARD =3D 8, HRTIMER_MODE_ABS_PINNED =3D 2, HRTIMER_MODE_REL_PINNED =3D 3, HRTIMER_MODE_ABS_SOFT =3D 4, HRTIMER_MODE_REL_SOFT =3D 5, HRTIMER_MODE_ABS_PINNED_SOFT =3D 6, HRTIMER_MODE_REL_PINNED_SOFT =3D 7, HRTIMER_MODE_ABS_HARD =3D 8, HRTIMER_MODE_REL_HARD =3D 9, HRTIMER_MODE_ABS_PINNED_HARD =3D 10, HRTIMER_MODE_REL_PINNED_HARD =3D 11, }; Committer testing: root@x1:~# perf trace -e timer:hrtimer_start --filter=3D'mode !=3D HRTIME= R_MODE_ABS' --max-events=3D2 0.000 :0/0 timer:hrtimer_start(hrtimer: 0xffff8d4eff2a5050, function= : 0xffffffff9e22ddd0, expires: 241502326000000, softexpires: 24150232600000= 0, mode: HRTIMER_MODE_ABS_PINNED_HARD) 18446744073709.488 :0/0 timer:hrtimer_start(hrtimer: 0xffff8d4eff425050, = function: 0xffffffff9e22ddd0, expires: 241501814000000, softexpires: 241501= 814000000, mode: HRTIMER_MODE_ABS_PINNED_HARD) root@x1:~# perf trace -e timer:hrtimer_start --filter=3D'mode !=3D HRTIME= R_MODE_ABS && mode !=3D HRTIMER_MODE_ABS_PINNED_HARD' --max-events=3D2 0.000 podman/510644 timer:hrtimer_start(hrtimer: 0xffffa2024f5f7dd0,= function: 0xffffffff9e2170c0, expires: 241530497418194, softexpires: 24153= 0497368194, mode: HRTIMER_MODE_REL) 40.251 gnome-shell/2484 timer:hrtimer_start(hrtimer: 0xffff8d48bda176= 50, function: 0xffffffffc0661550, expires: 241550528619247, softexpires: 24= 1550527619247, mode: HRTIMER_MODE_REL) root@x1:~# perf trace -v -e timer:hrtimer_start --filter=3D'mode !=3D HRT= IMER_MODE_ABS && mode !=3D HRTIMER_MODE_ABS_PINNED_HARD && mode !=3D HRTIME= R_MODE_REL' --max-events=3D2 Using CPUID GenuineIntel-6-BA-3 vmlinux BTF loaded 0 0xa 0x1 New filter for timer:hrtimer_start: (mode !=3D 0 && mode !=3D 0xa && mode= !=3D 0x1) && (common_pid !=3D 524049 && common_pid !=3D 4041) mmap size 528384B ^Croot@x1:~# Suggested-by: Arnaldo Carvalho de Melo Signed-off-by: Howard Chu Tested-by: Arnaldo Carvalho de Melo Cc: Adrian Hunter Cc: Alexander Shishkin Cc: Ian Rogers Cc: Ingo Molnar Cc: Jiri Olsa Cc: Kan Liang Cc: Mark Rutland Cc: Namhyung Kim Cc: Peter Zijlstra Link: https://lore.kernel.org/lkml/ZnCcliuecJABD5FN@x1 Link: https://lore.kernel.org/r/20240624181345.124764-5-howardchu95@gmail.c= om Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/builtin-trace.c | 62 ++++++++++++++++++++++++++++++++++---- 1 file changed, 56 insertions(+), 6 deletions(-) diff --git a/tools/perf/builtin-trace.c b/tools/perf/builtin-trace.c index 5618feb7d01a..e664001d5ed7 100644 --- a/tools/perf/builtin-trace.c +++ b/tools/perf/builtin-trace.c @@ -932,6 +932,37 @@ static int syscall_arg_fmt__cache_btf_enum(struct sysc= all_arg_fmt *arg_fmt, stru return arg_fmt->type =3D=3D NULL ? -1 : 0; } =20 +static bool syscall_arg__strtoul_btf_enum(char *bf, size_t size, struct sy= scall_arg *arg, u64 *val) +{ + const struct btf_type *bt; + char *type =3D arg->parm; + struct btf_enum *be; + struct btf *btf; + + trace__load_vmlinux_btf(arg->trace); + + btf =3D arg->trace->btf; + if (btf =3D=3D NULL) + return false; + + if (syscall_arg_fmt__cache_btf_enum(arg->fmt, btf, type) < 0) + return false; + + bt =3D arg->fmt->type; + be =3D btf_enum(bt); + for (int i =3D 0; i < btf_vlen(bt); ++i, ++be) { + const char *name =3D btf__name_by_offset(btf, be->name_off); + int max_len =3D max(size, strlen(name)); + + if (strncmp(name, bf, max_len) =3D=3D 0) { + *val =3D be->val; + return true; + } + } + + return false; +} + static size_t btf_enum_scnprintf(const struct btf_type *type, struct btf *= btf, char *bf, size_t size, int val) { struct btf_enum *be =3D btf_enum(type); @@ -965,8 +996,16 @@ static size_t trace__btf_enum_scnprintf(struct trace *= trace __maybe_unused, stru { return 0; } + +static bool syscall_arg__strtoul_btf_enum(char *bf __maybe_unused, size_t = size __maybe_unused, + struct syscall_arg *arg __maybe_unused, u64 *val __maybe_unused) +{ + return false; +} #endif // HAVE_LIBBPF_SUPPORT =20 +#define STUL_BTF_ENUM syscall_arg__strtoul_btf_enum + #define STRARRAY(name, array) \ { .scnprintf =3D SCA_STRARRAY, \ .strtoul =3D STUL_STRARRAY, \ @@ -1867,6 +1906,7 @@ syscall_arg_fmt__init_array(struct syscall_arg_fmt *a= rg, struct tep_format_field arg->scnprintf =3D SCA_FD; } else if (strstr(field->type, "enum") && use_btf !=3D NULL) { *use_btf =3D arg->is_enum =3D true; + arg->strtoul =3D STUL_BTF_ENUM; } else { const struct syscall_arg_fmt *fmt =3D syscall_arg_fmt__find_by_name(field->name); @@ -3792,7 +3832,8 @@ static int ordered_events__deliver_event(struct order= ed_events *oe, return __trace__deliver_event(trace, event->event); } =20 -static struct syscall_arg_fmt *evsel__find_syscall_arg_fmt_by_name(struct = evsel *evsel, char *arg) +static struct syscall_arg_fmt *evsel__find_syscall_arg_fmt_by_name(struct = evsel *evsel, char *arg, + char **type) { struct tep_format_field *field; struct syscall_arg_fmt *fmt =3D __evsel__syscall_arg_fmt(evsel); @@ -3801,13 +3842,15 @@ static struct syscall_arg_fmt *evsel__find_syscall_= arg_fmt_by_name(struct evsel return NULL; =20 for (field =3D evsel->tp_format->format.fields; field; field =3D field->n= ext, ++fmt) - if (strcmp(field->name, arg) =3D=3D 0) + if (strcmp(field->name, arg) =3D=3D 0) { + *type =3D field->type; return fmt; + } =20 return NULL; } =20 -static int trace__expand_filter(struct trace *trace __maybe_unused, struct= evsel *evsel) +static int trace__expand_filter(struct trace *trace, struct evsel *evsel) { char *tok, *left =3D evsel->filter, *new_filter =3D evsel->filter; =20 @@ -3840,14 +3883,14 @@ static int trace__expand_filter(struct trace *trace= __maybe_unused, struct evsel struct syscall_arg_fmt *fmt; int left_size =3D tok - left, right_size =3D right_end - right; - char arg[128]; + char arg[128], *type; =20 while (isspace(left[left_size - 1])) --left_size; =20 scnprintf(arg, sizeof(arg), "%.*s", left_size, left); =20 - fmt =3D evsel__find_syscall_arg_fmt_by_name(evsel, arg); + fmt =3D evsel__find_syscall_arg_fmt_by_name(evsel, arg, &type); if (fmt =3D=3D NULL) { pr_err("\"%s\" not found in \"%s\", can't set filter \"%s\"\n", arg, evsel->name, evsel->filter); @@ -3860,9 +3903,16 @@ static int trace__expand_filter(struct trace *trace = __maybe_unused, struct evsel if (fmt->strtoul) { u64 val; struct syscall_arg syscall_arg =3D { - .parm =3D fmt->parm, + .trace =3D trace, + .fmt =3D fmt, }; =20 + if (fmt->is_enum) { + syscall_arg.parm =3D type; + } else { + syscall_arg.parm =3D fmt->parm; + } + if (fmt->strtoul(right, right_size, &syscall_arg, &val)) { char *n, expansion[19]; int expansion_lenght =3D scnprintf(expansion, sizeof(expansion), "%#"= PRIx64, val); --=20 2.45.2