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On Thu, Aug 20, 2009 at 6:49 PM, H.J. Lu<hjl.tools@gmail.com> wrote: > On Thu, Aug 20, 2009 at 2:08 PM, Jim Wilson<wilson@codesourcery.com> wrote: >> On Wed, 2009-08-19 at 18:20 -0700, H.J. Lu wrote: >>> I didn't see the problem with my icc, using the patched >>> assembler. Can you provide main.s compiled by your icc? >> >> I tried your patch. ?Gas isn't emitting a spurious warning anymore, but >> it is still emitting bogus debug info, which is what I expected. >> >> To see the problem, just put a breakpoint in the function >> out_debug_line. ?You will see that we hit the breakpoint, even though we >> should not, because the input assembly file already has a fully >> populated debug_line section. >> >> You patch is doing something useful; it is making sure that gas picks up >> up the correct (non-comdat) debug_line section. ?But it doesn't stop gas >> from emitting the bogus debug info. >> >> Jim >> > > Hi Jim, > > I think we have been generate bogus debug line info forever when .loc > directive isn't used. ?Does it patch make any senses? > Here is the updated patch. We should generate DWARF info only when -g or .loc directives are used. OK to install? Thanks. -- H.J. --- bfd/ 2009-08-20 H.J. Lu <hongjiu.lu@intel.com> PR gas/10531 * section.c: Include "elf-bfd.h". (bfd_get_section_by_name): Don't use a section in a section group. (bfd_make_section_old_way): Likewise. binutils/testsuite/ 2009-08-20 H.J. Lu <hongjiu.lu@intel.com> PR gas/10531 * binutils-all/objdump.W: Remove bogus line debug info. gas/ 2009-08-20 H.J. Lu <hongjiu.lu@intel.com> PR gas/10531 * as.c (gen_debug): New. (parse_args): Set gen_debug to debug_type. * as.h (gen_debug): New. * dwarf2dbg.c (dwarf2_loc_directive_used): New. (dwarf2_directive_loc): Set dwarf2_loc_directive_used. (dwarf2_loc_directive_used): Likewise. (dwarf2_finish): Return if -g isn't passed nor any .loc directive is used. * subsegs.c (subseg_get): Don't compare segment name. gas/testsuite/ 2009-08-20 H.J. Lu <hongjiu.lu@intel.com> PR gas/10531 * gas/elf/group2.d: New. * gas/elf/group2.s: Likewise. * gas/i386/debug1.d: Likewise. * gas/i386/debug1.s: Likewise. * gas/elf/elf.exp: Run group2. * gas/i386/i386.exp: Run debug1 for both 32bit and 64bit.
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binutils-group-5.patch
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