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Add missing ABSL_HAVE_VDSO_SUPPORT conditional (#622)

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Signed-off-by: Sinan Kaya <sinan.kaya@microsoft.com>
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Sinan Kaya 2020-02-20 15:37:01 -05:00 • committed by GitHub
parent 3c81410510
commit 0232c87f21
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1 changed files with 4 additions and 0 deletions
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4
absl/debugging/internal/stacktrace_x86-inl.inc
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@ -173,6 +173,7 @@ static void **NextStackFrame(void **old_fp, const void *uc) {
static const unsigned char *kernel_rt_sigreturn_address = nullptr;
static const unsigned char *kernel_vsyscall_address = nullptr;
if (num_push_instructions == -1) {
#ifdef ABSL_HAVE_VDSO_SUPPORT
absl::debugging_internal::VDSOSupport vdso;
if (vdso.IsPresent()) {
absl::debugging_internal::VDSOSupport::SymbolInfo
@ -201,6 +202,9 @@ static void **NextStackFrame(void **old_fp, const void *uc) {
} else {
num_push_instructions = 0;
}
#else
num_push_instructions = 0;
#endif
}
if (num_push_instructions != 0 && kernel_rt_sigreturn_address != nullptr &&
old_fp[1] == kernel_rt_sigreturn_address) {