address-sanitizer

问题 I'm using Clang to compile my project, on x86_64 OS X(MacOS 10.15.5 Catalina). I want to identify exactly from which file, which function, which line causes memory leaks. I am trying to use Address Sanitizer, specifically Leak Sanitizer. Here are flags that I'm using when compiling: -Wall -Wextra -flto -O3 -march=native -ffast-math -fsanitize=address It successfully compiles. However, when I try to use run-time flag ASAN_OPTIONS=detect_leaks=1 in order to enable Leak Sanitizer, I see the

问题 I'm using Clang to compile my project, on x86_64 OS X(MacOS 10.15.5 Catalina). I want to identify exactly from which file, which function, which line causes memory leaks. I am trying to use Address Sanitizer, specifically Leak Sanitizer. Here are flags that I'm using when compiling: -Wall -Wextra -flto -O3 -march=native -ffast-math -fsanitize=address It successfully compiles. However, when I try to use run-time flag ASAN_OPTIONS=detect_leaks=1 in order to enable Leak Sanitizer, I see the

问题 I got report from AddressSanitizer about heap-buffer-overflow on address, but addresses displayed in shadow bytes do not relate to reported one. ERROR: AddressSanitizer: heap-buffer-overflow on address 0x6160000029a8 at pc 0x7f585f1d646d bp 0x7ffff1ff3430 sp 0x7ffff1ff2bd8 READ of size 80 at 0x6160000029a8 ... Shadow bytes around the buggy address: 0x0c2c7fff84e0 : fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa ... Why they are different? Is it bug in AddressSanitizer? 回答1: 0x6160000029a8

问题 Trying to use the AddressSanitizer tool (ASan) on my C++ project, I get a very verbose output full of undefined reference to '__asan_report_store8' and undefined reference to '__asan_report_load8' , and others like __asan_stack_malloc_2 . My project is built with CMake, and I've added the following line to my CMakeLists.txt: add_definitions(-fsanitize=address -g3 -fno-omit-frame-pointer) following these ASan examples: Example with makefile Jason Turner quick intro video Running the above

问题 Trying to use the AddressSanitizer tool (ASan) on my C++ project, I get a very verbose output full of undefined reference to '__asan_report_store8' and undefined reference to '__asan_report_load8' , and others like __asan_stack_malloc_2 . My project is built with CMake, and I've added the following line to my CMakeLists.txt: add_definitions(-fsanitize=address -g3 -fno-omit-frame-pointer) following these ASan examples: Example with makefile Jason Turner quick intro video Running the above

问题 In a previous question, it was discovered that using recent versions of GNU libstdc++ to read a series of numbers from a space-separated human-readable file (mirror) causes a ton of allocations, scaling linearly with the size of the file. Given the file linked above and this test program: #include <fstream> int main(int, char**) { std::ifstream ww15mgh("ww15mgh.grd"); double value; while (ww15mgh >> value); return 0; } Valgrind --tool=memcheck reports: ==523661== total heap usage: 1,038,970

问题 Clang 8 release notes have this promising line: Allow using Address Sanitizer and Undefined Behaviour Sanitizer on MinGW. However, I unable to figure out how to use those properly. I'm using Clang 8.0.0 with MSYS2 MinGW GCC. Exact details are at the bottom of the question. I'm trying to compile following minimal piece of code: 1.cpp #include <iostream> int main() { // Testing ubsan int x = 0x7fffffff; x++; std::cout << x << std::endl; // Testing asan int *y = new int; delete y; std::cout <<

来源： https://stackoverflow.com/questions/51963570/how-get-output-of-address-sanitizer-when-emiting-sigint-to-halt-a-loop

问题 I have activated address sanitizer for my app's native codes in order to detect some memory leak. But I have a strange problem. Before activating address sanitizer, app just runs normally and I can debug it without any problems. But after activating address sanitizer, I cannot debug app anymore, even though it runs just fine. It is a really strange behavior because after activating address sanitizer, "Waiting for Debugger..." message does not show anymore and I get following error in debug

问题 I have activated address sanitizer for my app's native codes in order to detect some memory leak. But I have a strange problem. Before activating address sanitizer, app just runs normally and I can debug it without any problems. But after activating address sanitizer, I cannot debug app anymore, even though it runs just fine. It is a really strange behavior because after activating address sanitizer, "Waiting for Debugger..." message does not show anymore and I get following error in debug