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Merge pull request #1326 from joe-lawrence/batch-sibling-calls

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create-diff-object: batch report unsupported sibling calls
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Joe Lawrence 2023-03-06 16:10:09 -05:00 committed by GitHub
commit e8627520c6
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1 changed files with 7 additions and 1 deletions
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kpatch-build/create-diff-object.c
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@ -3860,6 +3860,7 @@ static void kpatch_no_sibling_calls_ppc64le(struct kpatch_elf *kelf)
struct symbol *sym;
unsigned char *insn;
unsigned int offset;
int sibling_call_errors = 0;
if (kelf->arch != PPC64)
return;
@ -3893,10 +3894,15 @@ static void kpatch_no_sibling_calls_ppc64le(struct kpatch_elf *kelf)
if (!find_rela_by_offset(sym->sec->rela, offset))
continue;
ERROR("Found an unsupported sibling call at %s()+0x%lx. Add __attribute__((optimize(\"-fno-optimize-sibling-calls\"))) to %s() definition.",
log_normal("Found an unsupported sibling call at %s()+0x%lx. Add __attribute__((optimize(\"-fno-optimize-sibling-calls\"))) to %s() definition.\n",
sym->name, sym->sym.st_value + offset, sym->name);
sibling_call_errors++;
}
}
if (sibling_call_errors)
ERROR("Found %d unsupported sibling call(s) in the patched code.",
sibling_call_errors);
}
/* Check which functions have fentry/mcount calls; save this info for later use. */