AddressSanitizer (ASAN) is a fast memory error detector for issues such as out-of-bounds access and more.
AddressSanitizer (ASAN) is a fast memory error detector and consists of compile time instrumentation and a runtime library.
See also:
Questions tagged [address-sanitizer]
381 questions
59
votes
3 answers
How to use AddressSanitizer with GCC?
I'm trying to build my project with
g++ -O0 -g -fsanitize=address -fno-omit-frame-pointer
but get lots of errors like:
/home/user/libs/opencv/include/opencv2/core/mat.hpp:715: undefined reference to `__asan_report_load8'
How to compile project…
mrgloom
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44
votes
6 answers
What's the proper way to enable AddressSanitizer in CMake that works in Xcode
I've added AddressSanitizer flag as follow:
set (CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fsanitize=address")
Everything builds and runs fine when using Unix Makefiles.
The problem comes when generating the Xcode project, it just doesn't want to link…
ObjSal
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38
votes
2 answers
Memory/Address Sanitizer vs Valgrind
I want some tool to diagnose use-after-free bugs and uninitialized bugs. I am considering Sanitizer(Memory and/or Address) and Valgrind. But I have very little idea about their advantages and disadvantages. Can anyone tell the main features,…
kayas
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35
votes
3 answers
How can I break on UBSan reports in gdb and continue?
Recent versions of GCC and Clang feature Undefined Behavior Sanitizer (UBSan) which is a compile flag (-fsanitize=undefined) that adds runtime instrumentation code. On errors, a warning such as this one is shown:
packet-ber.c:1917:23: runtime…
Lekensteyn
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33
votes
3 answers
Meaningful stack traces for address sanitizer in GCC
I just tried compiling with GCC and the -fsanitize=address flag. When I run my program, the address sanitizer finds a flaw, but the stack trace is not helpful. How can I configure this so that it points to the source code locations I need to look…
clstaudt
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27
votes
3 answers
Clang Address Sanitizer on OS X
I would like to use clang address sanitizer on OSX Mountain Lion, because Valgrind have problems with memory check on this platform.
But when I had the -fsanitize=address during the compilation time (like I see on this page :…
Guillaume
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25
votes
3 answers
Why does ASAN_SYMBOLIZER_PATH no longer work with version adorned binaries
On Ubuntu 14.10, the llvm-symbolizer program is installed as /usr/bin/llvm-symbolizer-3.5. Normally, address sanitizer wants to find a binary named llvm-symbolizer in PATH. However, as a workaround, it was possible to explicitly set…
acm
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22
votes
3 answers
How to make AddressSanitizer not stop after one error (and other issues)
I'm running OS X, 10.8.5; I've installed llvm 3.4 via homebrew (clang version 3.4 (tags/RELEASE_34/final) ), and I'm building with -fsanitize=address. I can get asan working with simple demo programs, but when building against our codebase, I have…
Steve Broberg
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21
votes
2 answers
Address sanitizing Boost.Python modules
My project includes a large C++ library and Python bindings (via Boost.Python). The test suite is mostly written on top of the Python bindings, and I would like to run it with sanitizers, starting with ASAN.
I'm running macOS (10.13.1 FWIW, but I…
akim
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19
votes
1 answer
How to detect if building with address sanitizer when building with gcc 4.8?
I'm working on a program written in C that I occasionally build with address sanitizer, basically to catch bugs. The program prints a banner in the logs when it starts up with info such as: who built it, the branch it was built on, compiler etc. I…
fencekicker
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18
votes
1 answer
MinGW-w64's gcc and Address Sanitizer
Installing MinGW-w64 5.1 I find -fsanitize=address is available. It compiles fine, and when it starts linking I get thousands of:
undefined reference to '__asan_report_load1'
undefined reference to '__asan_report_load4'
I googled and found libasan…
Rick C. Hodgin
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17
votes
2 answers
Address Sanitizer-like functionality on MSVC
Coming from Linux/gcc/clang I find myself working more and more on Windows/Visual Studio.
What I am really missing there is the address sanitizer (bounds checking, leaks, use after free,...). I've done some research and also tried a few things but…
Frank Meerkötter
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17
votes
1 answer
-fsanitize not using gold linker in GCC-6.1
Update (30-Sept-2016)
The Ubuntu build of gcc-6.2 ((Ubuntu 6.2.0-3ubuntu11~16.04) 6.2.0 20160901) no longer has this issue.
I'm using the Ubuntu build of gcc-6.1[1] ((Ubuntu 6.1.1-3ubuntu11~14.04.1) 6.1.1 20160511), GNU binutils 2.24, and libstdc++…
Tim
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16
votes
1 answer
std::string_view on temporary string - catch by ASan
This is dangling pointer|reference example:
#include
#include
#include
std::string foo() {
return "test";
}
int main() {
std::string_view bar = foo(); // bar is pointed to destructed string
std::cout…
vladon
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13
votes
5 answers
How do I get line numbers in the debug output with clang's -fsanitize=address?
I am trying to debug a memory error detected by clang with asan, but missed by valgrind. But I cannot get my clang built binary to give me any useful debugging information. I can demonstrate this with a short test program:
#include…
detly
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