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| author | Anshuman Khandual <anshuman.khandual@arm.com> | 2022-02-24 08:36:54 +0300 |
|---|---|---|
| committer | Peter Zijlstra <peterz@infradead.org> | 2022-03-01 18:19:01 +0300 |
| commit | cedd3614e5d9c80908099c19f8716714ce0610b1 (patch) | |
| tree | 3bea1a0bdb3cae0c743b88c04417ab266bddb8fc /tools/include | |
| parent | 71a412ed4c104bcc239b1a8e06f90b58a4aee0bb (diff) | |
| download | linux-cedd3614e5d9c80908099c19f8716714ce0610b1.tar.xz | |
perf: Add irq and exception return branch types
This expands generic branch type classification by adding two more entries
there in i.e irq and exception return. Also updates the x86 implementation
to process X86_BR_IRET and X86_BR_IRQ records as appropriate. This changes
branch types reported to user space on x86 platform but it should not be a
problem. The possible scenarios and impacts are enumerated here.
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lkml.kernel.org/r/1645681014-3346-1-git-send-email-anshuman.khandual@arm.com
Diffstat (limited to 'tools/include')
| -rw-r--r-- | tools/include/uapi/linux/perf_event.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/tools/include/uapi/linux/perf_event.h b/tools/include/uapi/linux/perf_event.h index 4cd39aaccbe7..d1324c427e8b 100644 --- a/tools/include/uapi/linux/perf_event.h +++ b/tools/include/uapi/linux/perf_event.h @@ -251,6 +251,8 @@ enum { PERF_BR_SYSRET = 8, /* syscall return */ PERF_BR_COND_CALL = 9, /* conditional function call */ PERF_BR_COND_RET = 10, /* conditional function return */ + PERF_BR_ERET = 11, /* exception return */ + PERF_BR_IRQ = 12, /* irq */ PERF_BR_MAX, }; |