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| author | Andi Kleen <ak@linux.intel.com> | 2017-09-05 11:40:57 -0700 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2017-09-13 09:49:14 -0300 |
| commit | b1491ace8eb2e92677cd9ee966763f8f53d29d16 (patch) | |
| tree | 26f3d79d66e169d76c9edd1cc56df89cef58c903 /tools/perf/builtin-script.c | |
| parent | 84c417422798c897f637b0249f64a52807b4a61b (diff) | |
| download | talos-obmc-linux-b1491ace8eb2e92677cd9ee966763f8f53d29d16.tar.gz talos-obmc-linux-b1491ace8eb2e92677cd9ee966763f8f53d29d16.zip | |
perf script: Support user regs
Teach perf script to print user regs.
% perf record --user-regs=ip,sp ...
% perf script -F ip,sym,uregs
...
ffffffff9e060c24 native_write_msr ABI:2 SP:0x7ffd0ea06c38 IP:0x7fe77f55b637
ffffffff9e060c24 native_write_msr ABI:2 SP:0x7ffd0ea06c38 IP:0x7fe77f55b637
ffffffff9e060c24 native_write_msr ABI:2 SP:0x7ffd0ea06c38 IP:0x7fe77f55b637
ffffffff9e060c24 native_write_msr ABI:2 SP:0x7ffd0ea06c38 IP:0x7fe77f55b637
ffffffff9e00cc12 intel_pmu_handle_irq ABI:2 SP:0x7ffd0ea06c38 IP:0x7fe77f55b637
v2: Rebased on top of phys-addr patches
Signed-off-by: Andi Kleen <ak@linux.intel.com>
Link: http://lkml.kernel.org/r/20170905184057.26135-1-andi@firstfloor.org
[ Use PRIu64 for regs->abi in print_sample_uregs() ]
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/builtin-script.c')
| -rw-r--r-- | tools/perf/builtin-script.c | 30 |
1 files changed, 29 insertions, 1 deletions
diff --git a/tools/perf/builtin-script.c b/tools/perf/builtin-script.c index 3d4c3b5e1868..725dbd3dd104 100644 --- a/tools/perf/builtin-script.c +++ b/tools/perf/builtin-script.c @@ -88,6 +88,7 @@ enum perf_output_field { PERF_OUTPUT_BRSTACKOFF = 1U << 24, PERF_OUTPUT_SYNTH = 1U << 25, PERF_OUTPUT_PHYS_ADDR = 1U << 26, + PERF_OUTPUT_UREGS = 1U << 27, }; struct output_option { @@ -109,6 +110,7 @@ struct output_option { {.str = "srcline", .field = PERF_OUTPUT_SRCLINE}, {.str = "period", .field = PERF_OUTPUT_PERIOD}, {.str = "iregs", .field = PERF_OUTPUT_IREGS}, + {.str = "uregs", .field = PERF_OUTPUT_UREGS}, {.str = "brstack", .field = PERF_OUTPUT_BRSTACK}, {.str = "brstacksym", .field = PERF_OUTPUT_BRSTACKSYM}, {.str = "data_src", .field = PERF_OUTPUT_DATA_SRC}, @@ -385,6 +387,11 @@ static int perf_evsel__check_attr(struct perf_evsel *evsel, PERF_OUTPUT_IREGS)) return -EINVAL; + if (PRINT_FIELD(UREGS) && + perf_evsel__check_stype(evsel, PERF_SAMPLE_REGS_USER, "UREGS", + PERF_OUTPUT_UREGS)) + return -EINVAL; + if (PRINT_FIELD(PHYS_ADDR) && perf_evsel__check_stype(evsel, PERF_SAMPLE_PHYS_ADDR, "PHYS_ADDR", PERF_OUTPUT_PHYS_ADDR)) @@ -509,6 +516,24 @@ static void print_sample_iregs(struct perf_sample *sample, } } +static void print_sample_uregs(struct perf_sample *sample, + struct perf_event_attr *attr) +{ + struct regs_dump *regs = &sample->user_regs; + uint64_t mask = attr->sample_regs_user; + unsigned i = 0, r; + + if (!regs || !regs->regs) + return; + + printf(" ABI:%" PRIu64 " ", regs->abi); + + for_each_set_bit(r, (unsigned long *) &mask, sizeof(mask) * 8) { + u64 val = regs->regs[i++]; + printf("%5s:0x%"PRIx64" ", perf_reg_name(r), val); + } +} + static void print_sample_start(struct perf_sample *sample, struct thread *thread, struct perf_evsel *evsel) @@ -1444,6 +1469,9 @@ static void process_event(struct perf_script *script, if (PRINT_FIELD(IREGS)) print_sample_iregs(sample, attr); + if (PRINT_FIELD(UREGS)) + print_sample_uregs(sample, attr); + if (PRINT_FIELD(BRSTACK)) print_sample_brstack(sample, thread, attr); else if (PRINT_FIELD(BRSTACKSYM)) @@ -2739,7 +2767,7 @@ int cmd_script(int argc, const char **argv) "+field to add and -field to remove." "Valid types: hw,sw,trace,raw,synth. " "Fields: comm,tid,pid,time,cpu,event,trace,ip,sym,dso," - "addr,symoff,period,iregs,brstack,brstacksym,flags," + "addr,symoff,period,iregs,uregs,brstack,brstacksym,flags," "bpf-output,callindent,insn,insnlen,brstackinsn,synth,phys_addr", parse_output_fields), OPT_BOOLEAN('a', "all-cpus", &system_wide, |
