http://llvm.org/bugs/show_bug.cgi?id=19660
Bug ID: 19660
Summary: Can't build application with redefined new/delete and
ASAN (multiple definition of "operator new")
Product: compiler-rt
Version: 3.4
Hardware: PC
OS: Linux
Status: NEW
Severity: normal
Priority: P
Component: compiler-rt
Assignee: [email protected]
Reporter: [email protected]
CC: [email protected]
Classification: Unclassified
Created attachment 12480
--> http://llvm.org/bugs/attachment.cgi?id=12480&action=edit
Test file with redefined "operator new"
Following test code fails to build with enabled ASAN:
$ cat custom_new.cpp
#include <stdexcept>
void * operator new(std::size_t)
{
throw std::bad_alloc();
}
int main()
{
}
$ clang++ -Wall -O0 -fsanitize=address -std=c++11 custom_new.cpp
/tmp/custom_new-015fb3.o: In function `operator new(unsigned long)':
custom_new.cpp:(.text+0x0): multiple definition of `operator new(unsigned
long)'
/usr/bin/../lib/clang/3.4/lib/linux/libclang_rt.asan-x86_64.a(asan_new_delete.o):(.text+0x10):
first defined here
clang: error: linker command failed with exit code 1 (use -v to see invocation)
Without replacing new operator program builds and works with ASAN enabled.
Same file builds with enabled ASAN using GCC 4.8:
$ g++ -Wall -O0 -fsanitize=address -std=c++11 custom_new.cpp
$ clang++ --version
Ubuntu clang version 3.4-1ubuntu3 (tags/RELEASE_34/final) (based on LLVM 3.4)
Target: x86_64-pc-linux-gnu
Thread model: posix
On Ubuntu 14.04.
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