Need line number info in .so files created with GCC 4.3.2

[Brian Dessent]

John Fine wrote:

> Any suggestions on diagnosing or correcting this problem?  How can I
> tell if the problem is in the .so file or in the tools I've tried for
> looking at the .so file.

The first thing to check is whether the .so actually contains debug
info, since it sounds like it has been inadvertently stripped.  You can
check by running objdump -wh and verifying that it contains the .debug_*
sections.  If it doesn't then something in your build system is causing
the debug info to be omitted, e.g. -s in LDFLAGS.

If that doesn't explain it, then you need to provide a standalone
testcase that reproduces the problem.  Or at least show us the exact
list of commands used to compile and link.  I can't think of anything
that changed between gcc 4.1 and 4.3 that would cause this, nor should
the binutils version matter that much (as long as it's not an ancient
version.)  I just checked on an old debian system and binutils 2.15 had
no problem displaying line number info in a .so generated by gcc 4.4.

Brian