6.6-stable review patch. If anyone has any objections, please let me know.
------------------
From: Changbin Du <changbin.du@xxxxxxxxxx>
[ Upstream commit 6750ba4b6442fa5ea4bf5c0e4b4ff8b0249ef71d ]
Now '--insn-trace' accept a argument to specify the output format:
- raw: display raw instructions.
- disasm: display mnemonic instructions (if capstone is installed).
$ sudo perf script --insn-trace=raw
ls 1443864 [006] 2275506.209908875: 7f216b426100 _start+0x0 (/usr/lib/x86_64-linux-gnu/ld-2.31.so) insn: 48 89 e7
ls 1443864 [006] 2275506.209908875: 7f216b426103 _start+0x3 (/usr/lib/x86_64-linux-gnu/ld-2.31.so) insn: e8 e8 0c 00 00
ls 1443864 [006] 2275506.209908875: 7f216b426df0 _dl_start+0x0 (/usr/lib/x86_64-linux-gnu/ld-2.31.so) insn: f3 0f 1e fa
$ sudo perf script --insn-trace=disasm
ls 1443864 [006] 2275506.209908875: 7f216b426100 _start+0x0 (/usr/lib/x86_64-linux-gnu/ld-2.31.so) movq %rsp, %rdi
ls 1443864 [006] 2275506.209908875: 7f216b426103 _start+0x3 (/usr/lib/x86_64-linux-gnu/ld-2.31.so) callq _dl_start+0x0
ls 1443864 [006] 2275506.209908875: 7f216b426df0 _dl_start+0x0 (/usr/lib/x86_64-linux-gnu/ld-2.31.so) illegal instruction
ls 1443864 [006] 2275506.209908875: 7f216b426df4 _dl_start+0x4 (/usr/lib/x86_64-linux-gnu/ld-2.31.so) pushq %rbp
ls 1443864 [006] 2275506.209908875: 7f216b426df5 _dl_start+0x5 (/usr/lib/x86_64-linux-gnu/ld-2.31.so) movq %rsp, %rbp
ls 1443864 [006] 2275506.209908875: 7f216b426df8 _dl_start+0x8 (/usr/lib/x86_64-linux-gnu/ld-2.31.so) pushq %r15
Signed-off-by: Changbin Du <changbin.du@xxxxxxxxxx>
Reviewed-by: Adrian Hunter <adrian.hunter@xxxxxxxxx>
Cc: changbin.du@xxxxxxxxx
Cc: Thomas Richter <tmricht@xxxxxxxxxxxxx>
Cc: Andi Kleen <ak@xxxxxxxxxxxxxxx>
Signed-off-by: Namhyung Kim <namhyung@xxxxxxxxxx>
Link: https://lore.kernel.org/r/20240217074046.4100789-5-changbin.du@xxxxxxxxxx
Stable-dep-of: d4a98b45fbe6 ("perf script: Show also errors for --insn-trace option")
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
tools/perf/Documentation/perf-script.txt | 7 ++++---
tools/perf/builtin-script.c | 22 ++++++++++++++++++----
2 files changed, 22 insertions(+), 7 deletions(-)
diff --git a/tools/perf/Documentation/perf-script.txt b/tools/perf/Documentation/perf-script.txt
index ff9a52e446884..66b633f3c6d26 100644
--- a/tools/perf/Documentation/perf-script.txt
+++ b/tools/perf/Documentation/perf-script.txt
@@ -441,9 +441,10 @@ include::itrace.txt[]
will be printed. Each entry has function name and file/line. Enabled by
default, disable with --no-inline.
---insn-trace::
- Show instruction stream for intel_pt traces. Combine with --xed to
- show disassembly.
+--insn-trace[=<raw|disasm>]::
+ Show instruction stream in bytes (raw) or disassembled (disasm)
+ for intel_pt traces. The default is 'raw'. To use xed, combine
+ 'raw' with --xed to show disassembly done by xed.
--xed::
Run xed disassembler on output. Requires installing the xed disassembler.
diff --git a/tools/perf/builtin-script.c b/tools/perf/builtin-script.c
index 517bf25750c8b..c38e988c2a6d8 100644
--- a/tools/perf/builtin-script.c
+++ b/tools/perf/builtin-script.c
@@ -3765,10 +3765,24 @@ static int perf_script__process_auxtrace_info(struct perf_session *session,
#endif
static int parse_insn_trace(const struct option *opt __maybe_unused,
- const char *str __maybe_unused,
- int unset __maybe_unused)
+ const char *str, int unset __maybe_unused)
{
- parse_output_fields(NULL, "+insn,-event,-period", 0);
+ const char *fields = "+insn,-event,-period";
+ int ret;
+
+ if (str) {
+ if (strcmp(str, "disasm") == 0)
+ fields = "+disasm,-event,-period";
+ else if (strlen(str) != 0 && strcmp(str, "raw") != 0) {
+ fprintf(stderr, "Only accept raw|disasm\n");
+ return -EINVAL;
+ }
+ }
+
+ ret = parse_output_fields(NULL, fields, 0);
+ if (ret < 0)
+ return ret;
+
itrace_parse_synth_opts(opt, "i0ns", 0);
symbol_conf.nanosecs = true;
return 0;
@@ -3914,7 +3928,7 @@ int cmd_script(int argc, const char **argv)
"only consider these symbols"),
OPT_INTEGER(0, "addr-range", &symbol_conf.addr_range,
"Use with -S to list traced records within address range"),
- OPT_CALLBACK_OPTARG(0, "insn-trace", &itrace_synth_opts, NULL, NULL,
+ OPT_CALLBACK_OPTARG(0, "insn-trace", &itrace_synth_opts, NULL, "raw|disasm",
"Decode instructions from itrace", parse_insn_trace),
OPT_CALLBACK_OPTARG(0, "xed", NULL, NULL, NULL,
"Run xed disassembler on output", parse_xed),
--
2.43.0
