mdebray/tvl-depot
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

Add missing ABSL_HAVE_VDSO_SUPPORT conditional (#622)

Browse source 
Signed-off-by: Sinan Kaya <sinan.kaya@microsoft.com>
This commit is contained in:
Sinan Kaya 2020-02-20 15:37:01 -05:00 committed by GitHub
parent 3c81410510
commit 0232c87f21
No known key found for this signature in database
GPG key ID: 4AEE18F83AFDEB23
1 changed files with 4 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

4
absl/debugging/internal/stacktrace_x86-inl.inc
View file

@ -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) {