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* [Bug fortran/39791] New: Bad Dwarf debug information from gfortran for a character string. @ 2009-04-17 1:45 david dot sagan at gmail dot com 2009-04-17 4:40 ` [Bug fortran/39791] " burnus at gcc dot gnu dot org ` (5 more replies) 0 siblings, 6 replies; 7+ messages in thread From: david dot sagan at gmail dot com @ 2009-04-17 1:45 UTC (permalink / raw) To: gcc-bugs A simple example shows the problem: program test implicit none integer i character(16) abc abc = "abc" i = 7 end program Compile with: gfortran -g -O0 test.f90 Run with gdb and "whatis abc" produces: type = character(kind=1) (16) That is, gdb thinks that the variable abc is an array of length 16 with each component in the array being a singe character. I verified with the totalview debugger that the problem was with the compiler and not gdb. Interestingly enough, version 4.1.1 does *not* have this problem. This bug definitely makes debugging a program more painful. -- Summary: Bad Dwarf debug information from gfortran for a character string. Product: gcc Version: 4.3.3 Status: UNCONFIRMED Severity: normal Priority: P3 Component: fortran AssignedTo: unassigned at gcc dot gnu dot org ReportedBy: david dot sagan at gmail dot com http://gcc.gnu.org/bugzilla/show_bug.cgi?id=39791 ^ permalink raw reply [flat|nested] 7+ messages in thread
* [Bug fortran/39791] Bad Dwarf debug information from gfortran for a character string. 2009-04-17 1:45 [Bug fortran/39791] New: Bad Dwarf debug information from gfortran for a character string david dot sagan at gmail dot com @ 2009-04-17 4:40 ` burnus at gcc dot gnu dot org 2009-04-21 17:45 ` [Bug fortran/39791] [4.3 Regression] " pinskia at gcc dot gnu dot org ` (4 subsequent siblings) 5 siblings, 0 replies; 7+ messages in thread From: burnus at gcc dot gnu dot org @ 2009-04-17 4:40 UTC (permalink / raw) To: gcc-bugs ------- Comment #1 from burnus at gcc dot gnu dot org 2009-04-17 04:40 ------- I think this was recently fixed. At least with GCC 4.4.0 20090414 and with the latest 4.5 trunk: (gdb) pt abc type = character*16 (gdb) p abc $1 = 'abc', ' ' <repeats 13 times> I can reproduce the problem with gfortran 4.3.x -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=39791 ^ permalink raw reply [flat|nested] 7+ messages in thread
* [Bug fortran/39791] [4.3 Regression] Bad Dwarf debug information from gfortran for a character string. 2009-04-17 1:45 [Bug fortran/39791] New: Bad Dwarf debug information from gfortran for a character string david dot sagan at gmail dot com 2009-04-17 4:40 ` [Bug fortran/39791] " burnus at gcc dot gnu dot org @ 2009-04-21 17:45 ` pinskia at gcc dot gnu dot org 2009-04-22 13:35 ` rguenth at gcc dot gnu dot org ` (3 subsequent siblings) 5 siblings, 0 replies; 7+ messages in thread From: pinskia at gcc dot gnu dot org @ 2009-04-21 17:45 UTC (permalink / raw) To: gcc-bugs -- pinskia at gcc dot gnu dot org changed: What |Removed |Added ---------------------------------------------------------------------------- Keywords| |wrong-debug Summary|Bad Dwarf debug information |[4.3 Regression] Bad Dwarf |from gfortran for a |debug information from |character string. |gfortran for a character | |string. Target Milestone|--- |4.3.4 http://gcc.gnu.org/bugzilla/show_bug.cgi?id=39791 ^ permalink raw reply [flat|nested] 7+ messages in thread
* [Bug fortran/39791] [4.3 Regression] Bad Dwarf debug information from gfortran for a character string. 2009-04-17 1:45 [Bug fortran/39791] New: Bad Dwarf debug information from gfortran for a character string david dot sagan at gmail dot com 2009-04-17 4:40 ` [Bug fortran/39791] " burnus at gcc dot gnu dot org 2009-04-21 17:45 ` [Bug fortran/39791] [4.3 Regression] " pinskia at gcc dot gnu dot org @ 2009-04-22 13:35 ` rguenth at gcc dot gnu dot org 2009-04-24 7:19 ` burnus at gcc dot gnu dot org ` (2 subsequent siblings) 5 siblings, 0 replies; 7+ messages in thread From: rguenth at gcc dot gnu dot org @ 2009-04-22 13:35 UTC (permalink / raw) To: gcc-bugs ------- Comment #2 from rguenth at gcc dot gnu dot org 2009-04-22 13:35 ------- Fortran, P4. Confirmed as of comment #1. -- rguenth at gcc dot gnu dot org changed: What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |NEW Ever Confirmed|0 |1 Known to fail| |4.3.3 Known to work| |4.1.1 4.4.0 Priority|P3 |P4 Last reconfirmed|0000-00-00 00:00:00 |2009-04-22 13:35:09 date| | http://gcc.gnu.org/bugzilla/show_bug.cgi?id=39791 ^ permalink raw reply [flat|nested] 7+ messages in thread
* [Bug fortran/39791] [4.3 Regression] Bad Dwarf debug information from gfortran for a character string. 2009-04-17 1:45 [Bug fortran/39791] New: Bad Dwarf debug information from gfortran for a character string david dot sagan at gmail dot com ` (2 preceding siblings ...) 2009-04-22 13:35 ` rguenth at gcc dot gnu dot org @ 2009-04-24 7:19 ` burnus at gcc dot gnu dot org 2009-04-24 7:25 ` burnus at gcc dot gnu dot org 2009-05-11 9:17 ` burnus at gcc dot gnu dot org 5 siblings, 0 replies; 7+ messages in thread From: burnus at gcc dot gnu dot org @ 2009-04-24 7:19 UTC (permalink / raw) To: gcc-bugs ------- Comment #3 from burnus at gcc dot gnu dot org 2009-04-24 07:19 ------- Subject: Bug 39791 Author: burnus Date: Fri Apr 24 07:19:12 2009 New Revision: 146672 URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=146672 Log: 2009-04-24 Tobias Burnus <burnus@net-b.de> PR fortran/39791 Backport from mainline: 2008-08-22 Jakub Jelinek <jakub@redhat.com> * dwarf2out.c (add_subscript_info): Stop on Fortran * TYPE_STRING_FLAG types. (gen_array_type_die): Emit DW_TAG_string_type for Fortran character types. Modified: branches/gcc-4_3-branch/gcc/ChangeLog branches/gcc-4_3-branch/gcc/dwarf2out.c -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=39791 ^ permalink raw reply [flat|nested] 7+ messages in thread
* [Bug fortran/39791] [4.3 Regression] Bad Dwarf debug information from gfortran for a character string. 2009-04-17 1:45 [Bug fortran/39791] New: Bad Dwarf debug information from gfortran for a character string david dot sagan at gmail dot com ` (3 preceding siblings ...) 2009-04-24 7:19 ` burnus at gcc dot gnu dot org @ 2009-04-24 7:25 ` burnus at gcc dot gnu dot org 2009-05-11 9:17 ` burnus at gcc dot gnu dot org 5 siblings, 0 replies; 7+ messages in thread From: burnus at gcc dot gnu dot org @ 2009-04-24 7:25 UTC (permalink / raw) To: gcc-bugs ------- Comment #4 from burnus at gcc dot gnu dot org 2009-04-24 07:25 ------- FIXED for 4.3.4. The original patch for the 4.4 trunk was http://gcc.gnu.org/ml/gcc-patches/2008-08/msg01700.html -- burnus at gcc dot gnu dot org changed: What |Removed |Added ---------------------------------------------------------------------------- Status|NEW |RESOLVED Resolution| |FIXED http://gcc.gnu.org/bugzilla/show_bug.cgi?id=39791 ^ permalink raw reply [flat|nested] 7+ messages in thread
* [Bug fortran/39791] [4.3 Regression] Bad Dwarf debug information from gfortran for a character string. 2009-04-17 1:45 [Bug fortran/39791] New: Bad Dwarf debug information from gfortran for a character string david dot sagan at gmail dot com ` (4 preceding siblings ...) 2009-04-24 7:25 ` burnus at gcc dot gnu dot org @ 2009-05-11 9:17 ` burnus at gcc dot gnu dot org 5 siblings, 0 replies; 7+ messages in thread From: burnus at gcc dot gnu dot org @ 2009-05-11 9:17 UTC (permalink / raw) To: gcc-bugs ------- Comment #5 from burnus at gcc dot gnu dot org 2009-05-11 09:17 ------- The patch caused a regression, see PR 40061 -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=39791 ^ permalink raw reply [flat|nested] 7+ messages in thread
end of thread, other threads:[~2009-05-11 9:17 UTC | newest] Thread overview: 7+ messages (download: mbox.gz / follow: Atom feed) -- links below jump to the message on this page -- 2009-04-17 1:45 [Bug fortran/39791] New: Bad Dwarf debug information from gfortran for a character string david dot sagan at gmail dot com 2009-04-17 4:40 ` [Bug fortran/39791] " burnus at gcc dot gnu dot org 2009-04-21 17:45 ` [Bug fortran/39791] [4.3 Regression] " pinskia at gcc dot gnu dot org 2009-04-22 13:35 ` rguenth at gcc dot gnu dot org 2009-04-24 7:19 ` burnus at gcc dot gnu dot org 2009-04-24 7:25 ` burnus at gcc dot gnu dot org 2009-05-11 9:17 ` burnus at gcc dot gnu dot org
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