Hi, I have a problem running valgrind on os x that I cannot replicate on Ubuntu. The problem is as follows:
I'm trying to compile a program with debugging symbols so that valgrind will give me line numbers. I have found that if I compile a simple test program in one go (with -g) then it contains the line numbers. However, if I compile in two passes (i.e. compile then link) then it does not contain the line numbers. Here's the compile command for the single pass case: g++ -g file.c -o file And for two passes g++ -g -c file.c -o file.o g++ -g file.o -o file The actual program looks like this and contains a simple Invalid Write int main(){ int* x = new int[10]; x[10]=1; } If I compile with one pass then valgrind gives the following (note the line number at the end file.c:3) ==24114== 40 bytes in 1 blocks are definitely lost in loss record 2 of 9 ==24114== at 0xB823: malloc (vg_replace_malloc.c:266) ==24114== by 0x5768D: operator new(unsigned long) (in /usr/lib/libstdc++.6.0.9.dylib) ==24114== by 0x576DA: operator new[](unsigned long) (in /usr/lib/libstdc++.6.0.9.dylib) ==24114== by 0x100000F09: main (file.c:3) whereas if I compile in two passes I get this (with no line number): ==24135== 40 bytes in 1 blocks are definitely lost in loss record 2 of 9 ==24135== at 0xB823: malloc (vg_replace_malloc.c:266) ==24135== by 0x5768D: operator new(unsigned long) (in /usr/lib/libstdc++.6.0.9.dylib) ==24135== by 0x576DA: operator new[](unsigned long) (in /usr/lib/libstdc++.6.0.9.dylib) ==24135== by 0x100000F09: main (in ./file) What's interesting is that if I debug my little test program with GDB I can see line numbers. So somehow valgrind is not getting them. My system is OS X 10.7.3 with gcc 4.2.1 and valgrind 3.7.0 Note that I could not reproduce the problem on Ubuntu - there valgrind sees the line numbers no matter what. thanks for any help Peter ------------------------------------------------------------------------------ This SF email is sponsosred by: Try Windows Azure free for 90 days Click Here http://p.sf.net/sfu/sfd2d-msazure _______________________________________________ Valgrind-users mailing list Valgrind-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/valgrind-users