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gdb/2306: SunOS 5.10, gcc 3.4.3, No breakpoint setting using file:line on files from shared library

From: rohit_jain at mentor dot com
To: gdb-gnats at sources dot redhat dot com
Date: 29 Aug 2007 19:09:03 -0000
Subject: gdb/2306: SunOS 5.10, gcc 3.4.3, No breakpoint setting using file:line on files from shared library
Reply-to: rohit_jain at mentor dot com

>Number:         2306
>Category:       gdb
>Synopsis:       SunOS 5.10, gcc 3.4.3, No breakpoint setting using file:line on files from shared library
>Confidential:   no
>Severity:       critical
>Priority:       high
>Responsible:    unassigned
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Wed Aug 29 19:18:01 UTC 2007
>Closed-Date:
>Last-Modified:
>Originator:     rohit_jain@mentor.com
>Release:        GNU gdb 6.6
>Organization:
>Environment:
Reading specs from /usr/sfw/lib/gcc/sparc-sun-solaris2.10/3.4.3/specs
Configured with: /gates/sfw10/builds/sfw10-gate/usr/src/cmd/gcc/gcc-3.4.3/configure --prefix=/usr/sfw --with-as=/usr/sfw/bin/gas --with-gnu-as --with-ld=/usr/ccs/bin/ld --without-gnu-ld --enable-languages=c,c++ --enable-shared
Thread model: posix
gcc version 3.4.3 (csl-sol210-3_4-branch+sol_rpath)

GNU gdb 6.6
This GDB was configured as "sparc-sun-solaris2.8".

SunOS xxx 5.10 Generic_118833-22 sun4u sparc SUNW,Sun-Blade-2500

                         Solaris 10 3/05 s10_74L2a SPARC
           Copyright 2005 Sun Microsystems, Inc.  All Rights Reserved.
                        Use is subject to license terms.
                            Assembled 22 January 2005

>Description:
Gdb has problem on SunOS 5.10 with setting breakpoint on files from shared library. When the path of these files is different than the current working directory, and when file:line format is used to set the breakpoint (b myfunc.c:4). 

If you try to set breakpoint on a function in the same file it works (b myfunc). or if you give relative path to the file, it works too (b src/myfunc.c:4).

This problem is specific with this version of gcc used and only with 5.10.

I have attached a testcase, which reproduce this problem. I would appreciate a fix as soon as possible.
>How-To-Repeat:
Steps to reproduce:
- 'make'
- 'gdb ./test'
- 'b Startup'
- 'run'
- 'b myfunc'   -- this works fine
- 'b myfunc.c:6'  -- this does not work

(gdb) b myfunc.c:6
No line 6 in file "./src/myfunc.c".
>Fix:

>Release-Note:
>Audit-Trail:
>Unformatted:
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