On Wed, Feb 6, 2013 at 11:51 AM, Cary Coutant <ccout...@google.com> wrote: > A long time ago, I proposed a -gmlt option to generate "minimal line > tables" (basically -g1 + line tables): > > http://gcc.gnu.org/ml/gcc-patches/2011-04/msg02075.html > > The consensus from that thread was that instead of a new option, we > should just modify -g1 to produce line tables (the documented purpose > of -g1 is to enable stack traces, and stack traces are much more > useful with line numbers). I also proposed, and got no objection, that > -g by itself should set the debugging level to 2 (i.e., -g1 -g should > behave the same as -g1 -g2). > > Here, finally, is that patch again, reworked to generate line tables > at -g1. I plan to commit this when Stage 1 reopens, but I'd like to > verify that earlier consensus. I also plan to commit this to the > google/main branch, and future merges will go more smoothly if what I > put in google/main matches what eventually goes into trunk.
Hmm, Stage 1 has been opened for a while now but I could not find this patch has been committed yet. Is there any plans to include this patch? It would be useful for Sanitizer and other uses. Thanks, Andrew Pinski > > -cary > > 2013-02-06 Cary Coutant <ccout...@google.com> > > gcc/ > * dwarf2out.c (want_pubnames): Don't do pubnames for -g1. > (add_linkage_name): Don't add linkage name for -g1. > (decls_for_scope): Process subblocks for -g1. > (dwarf2out_source_line): Output line tables for -g1. > (dwarf2out_finish): Likewise. > * tree-ssa-live.c (remove_unused_scope_block_p): Don't prune > unused scopes for -g1. > * opts.c (common_handle_option): Handle -g same as -g2. > * doc/invoke.texi: Update description for -g1. > > gcc/testsuite/ > * gcc.dg/debug/dwarf2/mlt1.c: New test. > * gcc.dg/debug/dwarf2/mlt2.c: New test.
