kernel/linux.git/tools/perf/util/session.c, branch v5.9.2

perf tools: Use %zd for size_t printf formats on 32-bit

2020-09-01T15:15:21+00:00

A couple of trivial fixes for using %zd for size_t in the code supporting the ZSTD compression library. Signed-off-by: Chris Wilson Acked-by: Jiri Olsa Cc: Adrian Hunter Cc: Alexey Budankov Cc: Namhyung Kim Cc: Peter Zijlstra Link: http://lore.kernel.org/lkml/20200820212501.24421-1-chris@chris-wilson.co.uk Signed-off-by: Arnaldo Carvalho de Melo

perf tools: Add support for PERF_RECORD_TEXT_POKE

2020-07-10T11:20:01+00:00

Add processing for PERF_RECORD_TEXT_POKE events. When a text poke event is processed, then the kernel dso data cache is updated with the poked bytes. Signed-off-by: Adrian Hunter Cc: Alexander Shishkin Cc: Borislav Petkov Cc: H. Peter Anvin Cc: Jiri Olsa Cc: Leo Yan Cc: Mark Rutland Cc: Masami Hiramatsu Cc: Mathieu Poirier Cc: Peter Zijlstra Cc: Steven Rostedt (VMware) Cc: x86@kernel.org Link: http://lore.kernel.org/lkml/20200512121922.8997-12-adrian.hunter@intel.com Signed-off-by: Arnaldo Carvalho de Melo

perf evlist: Fix the class prefix for 'struct evlist' sample_id_all methods

2020-06-22T19:28:10+00:00

To differentiate from libperf's 'struct perf_evlist' methods. Cc: Adrian Hunter Cc: Jiri Olsa Cc: Namhyung Kim Signed-off-by: Arnaldo Carvalho de Melo

perf evlist: Fix the class prefix for 'struct evlist' sample_type methods

2020-06-22T19:28:09+00:00

To differentiate from libperf's 'struct perf_evlist' methods. Cc: Adrian Hunter Cc: Jiri Olsa Cc: Namhyung Kim Signed-off-by: Arnaldo Carvalho de Melo

perf tools: Remove some duplicated includes

2020-06-02T14:09:41+00:00

There exists some duplicated includes in tools/perf, remove them. Signed-off-by: Tiezhu Yang Cc: Alexander Shishkin Cc: Jiri Olsa Cc: Mark Rutland Cc: Namhyung Kim Cc: Peter Zijlstra Cc: xuefeng li Link: http://lore.kernel.org/lkml/1591071304-19338-2-git-send-email-yangtiezhu@loongson.cn Signed-off-by: Arnaldo Carvalho de Melo

perf script: Better align register values in dump

2020-05-28T13:03:27+00:00

Before: $ perf script --dump-raw-trace [...] 2492031077254920 0x1e08 [0x308]: PERF_RECORD_SAMPLE(IP, 0x1): 47557/47557: 0xc00000000012eeb0 period: 1 addr: 0 ... user regs: mask 0x1fffffffffff ABI 64-bit .... r0 0xb .... r1 0x7ffff3b90fa0 .... r2 0x7fffbabf7300 .... r3 0x7ffff3b9ed60 .... r4 0x7ffff3b95cc0 .... r5 0x1000c5a2940 .... r6 0xfefefefefefefeff .... r7 0x7f7f7f7f7f7f7f7f .... r8 0x7ffff3b9ed60 .... r9 0x0 [...] After: [...] 2492031077254920 0x1e08 [0x308]: PERF_RECORD_SAMPLE(IP, 0x1): 47557/47557: 0xc00000000012eeb0 period: 1 addr: 0 ... user regs: mask 0x1fffffffffff ABI 64-bit .... r0 0x000000000000000b .... r1 0x00007ffff3b90fa0 .... r2 0x00007fffbabf7300 .... r3 0x00007ffff3b9ed60 .... r4 0x00007ffff3b95cc0 .... r5 0x000001000c5a2940 .... r6 0xfefefefefefefeff .... r7 0x7f7f7f7f7f7f7f7f .... r8 0x00007ffff3b9ed60 .... r9 0x0000000000000000 [...] Committer testing: Full set of instructions, testing on x86_64: # perf record -I ^C[ perf record: Woken up 1 times to write data ] [ perf record: Captured and wrote 2.855 MB perf.data (4902 samples) ] # perf evlist -v cycles: size: 120, { sample_period, sample_freq }: 4000, sample_type: IP|TID|TIME|ID|CPU|PERIOD|REGS_INTR, read_format: ID, disabled: 1, inherit: 1, freq: 1, precise_ip: 3, sample_id_all: 1, exclude_guest: 1, sample_regs_intr: 0xff0fff dummy:HG: type: 1, size: 120, config: 0x9, { sample_period, sample_freq }: 4000, sample_type: IP|TID|TIME|ID|CPU|PERIOD|REGS_INTR, read_format: ID, inherit: 1, mmap: 1, comm: 1, freq: 1, task: 1, sample_id_all: 1, mmap2: 1, comm_exec: 1, ksymbol: 1, bpf_event: 1, sample_regs_intr: 0xff0fff # Before: # perf script --dump-raw-trace [...] 0 1542674658099675 0x1cb700 [0xe0]: PERF_RECORD_SAMPLE(IP, 0x4001): 1825/1825: 0xffffffff9506e544 period: 1 addr: 0 ... intr regs: mask 0xff0fff ABI 64-bit .... AX 0xf .... BX 0xffff96e1064125a0 .... CX 0x38f .... DX 0x7 .... SI 0xf .... DI 0x38f .... BP 0x1 .... SP 0xfffffe000000bdf0 .... IP 0xffffffff9506e544 .... FLAGS 0xa .... CS 0x10 .... SS 0x18 .... R8 0x0 .... R9 0x0 .... R10 0xfffffe00000260c8 .... R11 0xfffffe000000bef8 .... R12 0x1 .... R13 0x64 .... R14 0x390 .... R15 0xffff96e1064125a0 ... thread: perf:1825 ...... dso: /proc/kcore perf 1825 [000] 1542674.658099: 1 cycles: ffffffff9506e544 native_write_msr+0x4 (vmlinux [...] After: # perf script --dump-raw-trace [...] 0 1542674658096068 0x1cb620 [0xe0]: PERF_RECORD_SAMPLE(IP, 0x4001): 1825/1825: 0xffffffff9506e544 period: 1 addr: 0 ... intr regs: mask 0xff0fff ABI 64-bit .... AX 0x000000000000000f .... BX 0xffff96e1064125a0 .... CX 0x000000000000038f .... DX 0x0000000000000007 .... SI 0x000000000000000f .... DI 0x000000000000038f .... BP 0x0000000000000000 .... SP 0xffffb3e788fb7c20 .... IP 0xffffffff9506e544 .... FLAGS 0x000000000000000a .... CS 0x0000000000000010 .... SS 0x0000000000000018 .... R8 0x00057b0deeffdfe3 .... R9 0xffff96e106432480 .... R10 0x0000000000000000 .... R11 0xffff96e106412cc0 .... R12 0xffffb3e788fb7d00 .... R13 0xffff96e106432408 .... R14 0xffff96e106432400 .... R15 0xffff96e0e09a4800 ... thread: perf:1825 ...... dso: /proc/kcore perf 1825 [000] 1542674.658096: 1 cycles: ffffffff9506e544 native_write_msr+0x4 (vmlinux) [...] Signed-off-by: Paul Clarke Reviewed-by: Andi Kleen Tested-by: Arnaldo Carvalho de Melo Cc: Jin Yao Cc: Jiri Olsa Cc: Kan Liang Cc: Namhyung Kim LPU-Reference: 1589911102-9460-1-git-send-email-pc@us.ibm.com Signed-off-by: Arnaldo Carvalho de Melo

perf tools: Do not seek in pipe fd during tracing data processing

2020-05-28T13:03:25+00:00

There's no need to set 'fd' position in pipe mode, the file descriptor is already in proper place. Moreover the lseek will fail on pipe descriptor and that's why it's been working properly. I was tempted to remove the lseek calls completely, because it seems that tracing data event was always synthesized only in pipe mode, so there's no need for 'file' mode handling. But I guess there was a reason behind this and there might (however unlikely) be a perf.data that we could break processing for. Signed-off-by: Jiri Olsa Cc: Alexander Shishkin Cc: Ian Rogers Cc: Michael Petlan Cc: Namhyung Kim Cc: Paul Khuong Cc: Peter Zijlstra Link: http://lore.kernel.org/lkml/20200507095024.2789147-3-jolsa@kernel.org Signed-off-by: Arnaldo Carvalho de Melo

perf evsel: Rename perf_evselhas() to evselhas()

2020-05-05T19:35:31+00:00

As those are 'struct evsel' methods, not part of tools/lib/perf/, aka libperf, to whom the perf_ prefix belongs. Cc: Adrian Hunter Cc: Jiri Olsa Cc: Namhyung Kim Signed-off-by: Arnaldo Carvalho de Melo

perf evsel: Rename perf_evselname() to evselname()

2020-05-05T19:35:30+00:00

As they are 'struct evsel' methods or related routines, not part of tools/lib/perf/, aka libperf, to whom the perf_ prefix belongs. Cc: Adrian Hunter Cc: Jiri Olsa Cc: Namhyung Kim Signed-off-by: Arnaldo Carvalho de Melo

perf evsel: Add support for synthesized branch stack sample type

2020-05-05T19:35:29+00:00

Allow for a synthesized branch stack to be added to samples. As with synthesized call chains, the sample type cannot be changed because it is needed to continue to parse events. So add and use helper function evsel__has_br_stack() to indicate a branch stack, whether original or synthesized. Signed-off-by: Adrian Hunter Cc: Andi Kleen Cc: Jiri Olsa Link: http://lore.kernel.org/lkml/20200429150751.12570-6-adrian.hunter@intel.com Signed-off-by: Arnaldo Carvalho de Melo