diff options
| author | Eric Fiselier <eric@efcs.ca> | 2017-09-14 22:19:10 +0000 |
|---|---|---|
| committer | Eric Fiselier <eric@efcs.ca> | 2017-09-14 22:19:10 +0000 |
| commit | 66d44ca6921eaafa08a9ddc886d761e321e78021 (patch) | |
| tree | b9fd6173b7e94b4d0f5abea179d62e6ca6785081 /include | |
| parent | 9ff24034ff195b03df11b09ee2c55462f8489448 (diff) | |
[ASAN] Add macro denoting availability of new `__asan_handle_no_return()` function.
Summary:
Libc++abi attempts to use the newly added `__asan_handle_no_return()` when built under ASAN. Unfortunately older versions of compiler-rt do not provide this symbol, and so libc++abi needs a way to detect if `asan_interface.h` actually provides the function.
This patch adds the macro `SANITIZER_ASAN_INTERFACE_HAS_HANDLE_NO_RETURN` which can be used to detect the availability of the new function.
Reviewers: phosek, kcc, vitalybuka, alekseyshl
Reviewed By: phosek
Subscribers: mclow.lists, cfe-commits
Differential Revision: https://reviews.llvm.org/D37871
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@313303 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'include')
| -rw-r--r-- | include/sanitizer/asan_interface.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/include/sanitizer/asan_interface.h b/include/sanitizer/asan_interface.h index e689a730e..8828392b6 100644 --- a/include/sanitizer/asan_interface.h +++ b/include/sanitizer/asan_interface.h @@ -148,6 +148,10 @@ extern "C" { // before things like _exit and execl to avoid false positives on stack. void __asan_handle_no_return(void); + // Required to allow ASAN versions of libc++abi to build against older + // versions of compiler-rt that do not provide this interface. +# define SANITIZER_ASAN_INTERFACE_HAS_HANDLE_NO_RETURN + #ifdef __cplusplus } // extern "C" #endif |