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| author | Anshuman Khandual <anshuman.khandual@arm.com> | 2022-02-24 08:36:54 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2023-10-25 12:58:58 +0300 |
| commit | 030099bc9115ec0db1de33665eb47bc8cade9e62 (patch) | |
| tree | 498691ca4e775e5715203698f227cafe40fcd9ce /include/uapi/linux | |
| parent | ae80d5290c1449b4cbe0234cfbfc2c760bc6e1e9 (diff) | |
| download | linux-030099bc9115ec0db1de33665eb47bc8cade9e62.tar.xz | |
perf: Add irq and exception return branch types
[ Upstream commit cedd3614e5d9c80908099c19f8716714ce0610b1 ]
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
Stable-dep-of: e53899771a02 ("perf/x86/lbr: Filter vsyscall addresses")
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'include/uapi/linux')
| -rw-r--r-- | include/uapi/linux/perf_event.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/include/uapi/linux/perf_event.h b/include/uapi/linux/perf_event.h index f92880a15645..a7fb8d2b7709 100644 --- a/include/uapi/linux/perf_event.h +++ b/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, }; |