Messages in this thread |  | | Subject | Re: [PATCH] perf tools: add aarch64 registers to --user-regs | From | John Garry <> | Date | Mon, 30 Nov 2020 17:30:12 +0000 |
| |
On 27/11/2020 15:39, Alexandre Truong wrote: > Previously, this command returns no help message on aarch64: > > -> ./perf record --user-regs=? > > available registers: > Usage: perf record [<options>] [<command>] > or: perf record [<options>] -- <command> [<options>] > > With this change, the registers are listed. > > -> ./perf record --user-regs=? > > available registers: x0 x1 x2 x3 x4 x5 x6 x7 x8 x9 x10 x11 x12 x13 x14 x15 x16 x17 x18 x19 x20 x21 x22 x23 x24 x25 x26 x27 x28 x29 lr sp pc > > It's also now possible to record subsets of registers on aarch64: > > -> ./perf record --user-regs=x4,x5 ls > -> ./perf report --dump-raw-trace > > 12801163749305260 0xc70 [0x40]: PERF_RECORD_SAMPLE(IP, 0x2): 51956/51956: 0xffffaa6571f0 period: 145785 addr: 0 > ... user regs: mask 0x30 ABI 64-bit > .... x4 0x000000000000006c > .... x5 0x0000001001000001 > ... thread: ls:51956 > ...... dso: /usr/lib64/ld-2.17.so > > Cc: John Garry <john.garry@huawei.com> > Cc: Leo Yan <leo.yan@linaro.org> > Cc: Arnaldo Carvalho de Melo <acme@kernel.org> > Cc: Jiri Olsa <jolsa@redhat.com> > Cc: Namhyung Kim <namhyung@kernel.org> > Signed-off-by: Alexandre Truong <alexandre.truong@arm.com>
This looks ok, just adding in more guys recorded as reviewers in MAINTAINERS.
John
> --- > tools/perf/arch/arm64/util/perf_regs.c | 33 ++++++++++++++++++++++++++ > 1 file changed, 33 insertions(+) > > diff --git a/tools/perf/arch/arm64/util/perf_regs.c b/tools/perf/arch/arm64/util/perf_regs.c > index 2833e101a..54efa12fd 100644 > --- a/tools/perf/arch/arm64/util/perf_regs.c > +++ b/tools/perf/arch/arm64/util/perf_regs.c > @@ -2,5 +2,38 @@ > #include "../../../util/perf_regs.h" > > const struct sample_reg sample_reg_masks[] = { > + SMPL_REG(x0, PERF_REG_ARM64_X0), > + SMPL_REG(x1, PERF_REG_ARM64_X1), > + SMPL_REG(x2, PERF_REG_ARM64_X2), > + SMPL_REG(x3, PERF_REG_ARM64_X3), > + SMPL_REG(x4, PERF_REG_ARM64_X4), > + SMPL_REG(x5, PERF_REG_ARM64_X5), > + SMPL_REG(x6, PERF_REG_ARM64_X6), > + SMPL_REG(x7, PERF_REG_ARM64_X7), > + SMPL_REG(x8, PERF_REG_ARM64_X8), > + SMPL_REG(x9, PERF_REG_ARM64_X9), > + SMPL_REG(x10, PERF_REG_ARM64_X10), > + SMPL_REG(x11, PERF_REG_ARM64_X11), > + SMPL_REG(x12, PERF_REG_ARM64_X12), > + SMPL_REG(x13, PERF_REG_ARM64_X13), > + SMPL_REG(x14, PERF_REG_ARM64_X14), > + SMPL_REG(x15, PERF_REG_ARM64_X15), > + SMPL_REG(x16, PERF_REG_ARM64_X16), > + SMPL_REG(x17, PERF_REG_ARM64_X17), > + SMPL_REG(x18, PERF_REG_ARM64_X18), > + SMPL_REG(x19, PERF_REG_ARM64_X19), > + SMPL_REG(x20, PERF_REG_ARM64_X20), > + SMPL_REG(x21, PERF_REG_ARM64_X21), > + SMPL_REG(x22, PERF_REG_ARM64_X22), > + SMPL_REG(x23, PERF_REG_ARM64_X23), > + SMPL_REG(x24, PERF_REG_ARM64_X24), > + SMPL_REG(x25, PERF_REG_ARM64_X25), > + SMPL_REG(x26, PERF_REG_ARM64_X26), > + SMPL_REG(x27, PERF_REG_ARM64_X27), > + SMPL_REG(x28, PERF_REG_ARM64_X28), > + SMPL_REG(x29, PERF_REG_ARM64_X29), > + SMPL_REG(lr, PERF_REG_ARM64_LR), > + SMPL_REG(sp, PERF_REG_ARM64_SP), > + SMPL_REG(pc, PERF_REG_ARM64_PC), > SMPL_REG_END > }; >
|  |