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* [Bug other/48922] New: invalid dwarf2 on ia64 with very old gas @ 2011-05-07 3:28 PHHargrove at lbl dot gov 2011-07-23 23:20 ` [Bug other/48922] " pinskia at gcc dot gnu.org ` (3 more replies) 0 siblings, 4 replies; 5+ messages in thread From: PHHargrove at lbl dot gov @ 2011-05-07 3:28 UTC (permalink / raw) To: gcc-bugs http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48922 Summary: invalid dwarf2 on ia64 with very old gas Product: gcc Version: 4.6.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: other AssignedTo: unassigned@gcc.gnu.org ReportedBy: PHHargrove@lbl.gov I recently built gcc-4.6.0 on an SGI Altix (ia64-unknown-linux-gnu) which has a very old binutils: $ as --version GNU assembler 2.15.90.0.1.1 20040303 (SuSE Linux) Copyright 2002 Free Software Foundation, Inc. This program is free software; you may redistribute it under the terms of the GNU General Public License. This program has absolutely no warranty. This assembler was configured for a target of `ia64-suse-linux'. This assembler is warning thousands of times on the .s files generated by gcc-4.6.0. There are two distinct warnings seen: /tmp/ccDiWUIH.s:343: Warning: rest of line ignored; first ignored character is `i' /tmp/ccDiWUIH.s:705: Warning: rest of line ignored; first ignored character is `d' I traced these to the '.loc' lines in the .s file(s) and was able to "fix" the problem in my build with the following brute-force approach: --- gcc-4.6.0/gcc/dwarf2out.c.orig 2011-05-06 23:07:15.987896522 -0400 +++ gcc-4.6.0/gcc/dwarf2out.c 2011-05-06 22:49:28.496973178 -0400 @@ -22023,6 +22023,7 @@ { /* Emit the .loc directive understood by GNU as. */ fprintf (asm_out_file, "\t.loc %d %d 0", file_num, line); +#if 0 if (is_stmt != last_is_stmt) { fprintf (asm_out_file, " is_stmt %d", is_stmt ? 1 : 0); @@ -22030,6 +22031,7 @@ } if (SUPPORTS_DISCRIMINATOR && discriminator != 0) fprintf (asm_out_file, " discriminator %d", discriminator); +#endif fputc ('\n', asm_out_file); /* Indicate that line number info exists. */ I know this is NOT the proper approach, but I am not familiar enough w/ gcc internals for a proper fix. I suppose one should be doing a configure-time check for the assembler's support for "is_stmt" and "discriminator". Of course, I suspect installing a more recent binutils is a "better" fix, but my approach above was faster for my purposes. ^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug other/48922] invalid dwarf2 on ia64 with very old gas 2011-05-07 3:28 [Bug other/48922] New: invalid dwarf2 on ia64 with very old gas PHHargrove at lbl dot gov @ 2011-07-23 23:20 ` pinskia at gcc dot gnu.org 2011-12-16 1:22 ` pinskia at gcc dot gnu.org ` (2 subsequent siblings) 3 siblings, 0 replies; 5+ messages in thread From: pinskia at gcc dot gnu.org @ 2011-07-23 23:20 UTC (permalink / raw) To: gcc-bugs http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48922 --- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> 2011-07-23 23:20:08 UTC --- SUPPORTS_DISCRIMINATOR should be 0 in your case. ^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug other/48922] invalid dwarf2 on ia64 with very old gas 2011-05-07 3:28 [Bug other/48922] New: invalid dwarf2 on ia64 with very old gas PHHargrove at lbl dot gov 2011-07-23 23:20 ` [Bug other/48922] " pinskia at gcc dot gnu.org @ 2011-12-16 1:22 ` pinskia at gcc dot gnu.org 2011-12-16 2:15 ` PHHargrove at lbl dot gov 2011-12-16 2:16 ` [Bug bootstrap/48922] " pinskia at gcc dot gnu.org 3 siblings, 0 replies; 5+ messages in thread From: pinskia at gcc dot gnu.org @ 2011-12-16 1:22 UTC (permalink / raw) To: gcc-bugs http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48922 Andrew Pinski <pinskia at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |WAITING Last reconfirmed| |2011-12-16 Ever Confirmed|0 |1 --- Comment #2 from Andrew Pinski <pinskia at gcc dot gnu.org> 2011-12-16 01:18:47 UTC --- Can you attach the config.log part under the gcc directory? This should explain why SUPPORTS_DISCRIMINATOR was set to true. ^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug other/48922] invalid dwarf2 on ia64 with very old gas 2011-05-07 3:28 [Bug other/48922] New: invalid dwarf2 on ia64 with very old gas PHHargrove at lbl dot gov 2011-07-23 23:20 ` [Bug other/48922] " pinskia at gcc dot gnu.org 2011-12-16 1:22 ` pinskia at gcc dot gnu.org @ 2011-12-16 2:15 ` PHHargrove at lbl dot gov 2011-12-16 2:16 ` [Bug bootstrap/48922] " pinskia at gcc dot gnu.org 3 siblings, 0 replies; 5+ messages in thread From: PHHargrove at lbl dot gov @ 2011-12-16 2:15 UTC (permalink / raw) To: gcc-bugs http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48922 --- Comment #3 from Paul H. Hargrove <PHHargrove at lbl dot gov> 2011-12-16 01:42:30 UTC --- Created attachment 26105 --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=26105 BUILDDIR/gcc/config.log from the problematic build ^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug bootstrap/48922] invalid dwarf2 on ia64 with very old gas 2011-05-07 3:28 [Bug other/48922] New: invalid dwarf2 on ia64 with very old gas PHHargrove at lbl dot gov ` (2 preceding siblings ...) 2011-12-16 2:15 ` PHHargrove at lbl dot gov @ 2011-12-16 2:16 ` pinskia at gcc dot gnu.org 3 siblings, 0 replies; 5+ messages in thread From: pinskia at gcc dot gnu.org @ 2011-12-16 2:16 UTC (permalink / raw) To: gcc-bugs http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48922 Andrew Pinski <pinskia at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|WAITING |NEW Component|other |bootstrap --- Comment #4 from Andrew Pinski <pinskia at gcc dot gnu.org> 2011-12-16 02:14:58 UTC --- configure:22415: checking assembler for line table discriminator support configure:22430: /usr/bin/as -o conftest.o conftest.s >&5 conftest.s: Assembler messages: conftest.s:3: Warning: rest of line ignored; first ignored character is `d' configure:22433: $? = 0 configure:22444: result: yes looks like the configure check is not checking the warnings ^ permalink raw reply [flat|nested] 5+ messages in thread
end of thread, other threads:[~2011-12-16 2:15 UTC | newest] Thread overview: 5+ messages (download: mbox.gz / follow: Atom feed) -- links below jump to the message on this page -- 2011-05-07 3:28 [Bug other/48922] New: invalid dwarf2 on ia64 with very old gas PHHargrove at lbl dot gov 2011-07-23 23:20 ` [Bug other/48922] " pinskia at gcc dot gnu.org 2011-12-16 1:22 ` pinskia at gcc dot gnu.org 2011-12-16 2:15 ` PHHargrove at lbl dot gov 2011-12-16 2:16 ` [Bug bootstrap/48922] " pinskia at gcc dot gnu.org
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