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8 Commits

Author SHA1 Message Date
Peter Collingbourne
0f43b92980 sanitizer_common: Try looking up symbols with RTLD_DEFAULT if RTLD_NEXT does not work. 
If the lookup using RTLD_NEXT failed, the sanitizer runtime library
is later in the library search order than the DSO that we are trying
to intercept, which means that we cannot intercept this function. We
still want the address of the real definition, though, so look it up
using RTLD_DEFAULT.

Differential Revision: https://reviews.llvm.org/D39779

llvm-svn: 317930
 2017-11-10 22:09:37 +00:00
Kamil Rytarowski
70a3511bd5 Reuse interception_linux for NetBSD 
Summary:
Part of the code inspired by the original work on libsanitizer in GCC 5.4 by Christos Zoulas.

Sponsored by <The NetBSD Foundation>

Reviewers: joerg, kcc, vitalybuka, filcab

Reviewed By: vitalybuka

Subscribers: llvm-commits, #sanitizers

Tags: #sanitizers

Differential Revision: https://reviews.llvm.org/D36321

llvm-svn: 310351
 2017-08-08 12:10:08 +00:00
Kostya Serebryany
04f2bf0f07 [sanitizer] Interception macros for sanitizers on FreeBSD; patch by Viktor Kutuzov 
llvm-svn: 202009
 2014-02-24 08:37:41 +00:00
Dmitry Vyukov
23b80ab87f asan: fix android build 
android does not have dlvsym

llvm-svn: 189781
 2013-09-03 07:53:49 +00:00
Dmitry Vyukov
3a6c7cea77 tsan: properly intercept pthread_cond functions 
llvm-svn: 189767
 2013-09-02 18:06:28 +00:00
Alexey Samsonov
0f840bd240 [Sanitizer] Workaround for a compiler warning - ISO C++ forbids casting pointer-to-function to pointer-to-object, so we use cast via integral type 
llvm-svn: 161168
 2012-08-02 11:19:13 +00:00
Dmitry Vyukov
7fb7330469 asan/tsan: weak interceptors 
The idea isthat asan/tsan can survive if user intercepts the same functions. At the same time user has an ability to call back into asan/tsan runtime. See the following tests for examples:
asan/output_tests/interception_failure_test-linux.cc
asan/output_tests/interception_test-linux.cc
asan/output_tests/interception_malloc_test-linux.cc

llvm-svn: 157388
 2012-05-24 13:54:31 +00:00
Kostya Serebryany
1dd4c606ed [asan] move lib/asan/interception to lib/interception so that other tools (e.g. tsan) can use it 
llvm-svn: 156816
 2012-05-15 12:21:33 +00:00