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authorVasily Gorbik <gor@linux.ibm.com>2021-05-19 16:03:13 +0300
committerJosh Poimboeuf <jpoimboe@redhat.com>2021-05-19 23:30:59 +0300
commitc199f64ff93c48a45add92eee4456ffcabfc838e (patch)
treeb5de0c0d2863dd48b9ad50f9e15d3259b0b44ad4 /tools/objtool/elf.c
parentf1069a8756b9e9f6c055e709740d2d66650f0fb0 (diff)
downloadlinux-c199f64ff93c48a45add92eee4456ffcabfc838e.tar.xz
instrumentation.h: Avoid using inline asm operand modifiers
The expansion of instrumentation_begin/instrumentation_end on s390 will result in a compiler error if the __COUNTER__ value is high enough. For example with "i" (154) the "%c0" operand of annotate_reachable will be expanded to -102: -102: .pushsection .discard.instr_begin .long -102b - . .popsection This is a quirk of the gcc backend for s390, it interprets the %c0 as a signed byte value. Avoid using operand modifiers in this case by simply converting __COUNTER__ to string, with the same result, but in an arch assembler independent way. Signed-off-by: Vasily Gorbik <gor@linux.ibm.com> Signed-off-by: Josh Poimboeuf <jpoimboe@redhat.com> Link: https://lore.kernel.org/r/patch-2.thread-1a26be.git-1a26be80cb18.your-ad-here.call-01621428935-ext-2104@work.hours Cc: Peter Zijlstra <peterz@infradead.org> Cc: Ingo Molnar <mingo@kernel.org> Cc: Miroslav Benes <mbenes@suse.cz> Cc: Borislav Petkov <bp@suse.de> Cc: linux-kernel@vger.kernel.org
Diffstat (limited to 'tools/objtool/elf.c')
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