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| author | Josh Poimboeuf <[email protected]> | 2021-11-08 22:35:59 +0000 |
|---|---|---|
| committer | Josh Poimboeuf <[email protected]> | 2021-12-21 23:09:46 +0000 |
| commit | dcce50e6cc4d86a63dc0a9a6ee7d4f948ccd53a1 (patch) | |
| tree | 924ef38b1c608d28308f4684364482009d39409a /tools/perf/scripts/python/sctop.py | |
| parent | uapi: Fix undefined __always_inline on non-glibc systems (diff) | |
| download | kernel-dcce50e6cc4d86a63dc0a9a6ee7d4f948ccd53a1.tar.gz kernel-dcce50e6cc4d86a63dc0a9a6ee7d4f948ccd53a1.zip | |
compiler.h: Fix annotation macro misplacement with Clang
When building with Clang and CONFIG_TRACE_BRANCH_PROFILING, there are a
lot of unreachable warnings, like:
arch/x86/kernel/traps.o: warning: objtool: handle_xfd_event()+0x134: unreachable instruction
Without an input to the inline asm, 'volatile' is ignored for some
reason and Clang feels free to move the reachable() annotation away from
its intended location.
Fix that by re-adding the counter value to the inputs.
Fixes: f1069a8756b9 ("compiler.h: Avoid using inline asm operand modifiers")
Fixes: c199f64ff93c ("instrumentation.h: Avoid using inline asm operand modifiers")
Reported-by: kernel test robot <[email protected]>
Signed-off-by: Josh Poimboeuf <[email protected]>
Link: https://lore.kernel.org/r/0417e96909b97a406323409210de7bf13df0b170.1636410380.git.jpoimboe@redhat.com
Cc: Peter Zijlstra <[email protected]>
Cc: [email protected]
Cc: Vasily Gorbik <[email protected]>
Cc: Miroslav Benes <[email protected]>
Diffstat (limited to 'tools/perf/scripts/python/sctop.py')
0 files changed, 0 insertions, 0 deletions