diff options
| author | Marcin Koscielnicki <koriakin@0x04.net> | 2016-04-27 21:24:21 +0000 |
|---|---|---|
| committer | Marcin Koscielnicki <koriakin@0x04.net> | 2016-04-27 21:24:21 +0000 |
| commit | 9b30f142d2bd6e1e85447e38d3a61ba92405b434 (patch) | |
| tree | 2a8521b172300ae32828648f0008a79dd2137fbe /lib/asan | |
| parent | c97c82cc2895d3ac599c2fe3c09ba3950de33b4f (diff) | |
[sanitizers] Get the proper symbol version when long double transition is involved.
On linux, some architectures had an ABI transition from 64-bit long double
(ie. same as double) to 128-bit long double. On those, glibc symbols
involving long doubles come in two versions, and we need to pass the
correct one to dlvsym when intercepting them.
A few more functions we intercept are also versioned (all printf, scanf,
strtold variants), but there's no need to fix these, as the REAL() versions
are never called.
Differential Revision: http://reviews.llvm.org/D19555
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@267794 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/asan')
| -rw-r--r-- | lib/asan/asan_interceptors.cc | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/lib/asan/asan_interceptors.cc b/lib/asan/asan_interceptors.cc index 859af4a62..7f9a8844b 100644 --- a/lib/asan/asan_interceptors.cc +++ b/lib/asan/asan_interceptors.cc @@ -144,6 +144,8 @@ DECLARE_REAL_AND_INTERCEPTOR(void, free, void *) (void) ctx; \ #define COMMON_INTERCEPT_FUNCTION(name) ASAN_INTERCEPT_FUNC(name) +#define COMMON_INTERCEPT_FUNCTION_VER(name, ver) \ + ASAN_INTERCEPT_FUNC_VER(name, ver) #define COMMON_INTERCEPTOR_WRITE_RANGE(ctx, ptr, size) \ ASAN_WRITE_RANGE(ctx, ptr, size) #define COMMON_INTERCEPTOR_READ_RANGE(ctx, ptr, size) \ |