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* [Bug gdb/14014] New: win64 crash with bad dwarf2 symbols (7.4 crash / 7.3 gives error expected)
@ 2012-04-24 13:35 gdb.bugs at mfriebe dot de
2012-04-24 20:20 ` [Bug gdb/14014] " tromey at redhat dot com
0 siblings, 1 reply; 2+ messages in thread
From: gdb.bugs at mfriebe dot de @ 2012-04-24 13:35 UTC (permalink / raw)
To: gdb-prs
http://sourceware.org/bugzilla/show_bug.cgi?id=14014
Bug #: 14014
Summary: win64 crash with bad dwarf2 symbols (7.4 crash / 7.3
gives error expected)
Product: gdb
Version: 7.4
Status: NEW
Severity: normal
Priority: P2
Component: gdb
AssignedTo: unassigned@sourceware.org
ReportedBy: gdb.bugs@mfriebe.de
Classification: Unclassified
Created attachment 6361
--> http://sourceware.org/bugzilla/attachment.cgi?id=6361
source and exe
Windows 64 bit XP Sp2 (though probably affects any 64 bit win) Intel
Free pascal version 2.4.4 does generate broken dwarf2 info. It is expected that
gdb reports errors in an attempt to use them.
GDB 7.3 reports such errors as expected
GDB 7.4 crashes
Attached is a simple pascal program, and the exe compiled with fpc 2.4.4 (must
be 2.4.4 / other fpc do not generate the required broken dwarf)
The source was compiled using:
fpc.exe -gw hello.pas
GDB was downloaded from http://www.drangon.org/mingw/
mingw-w64-bin-x86_64-20120225.7z : native mingw-w64 toolchain under Windows
XP/2003 x64, build (gcc 4.6 branch) from SVN 2012-02-25 (29M)
http://www.drangon.org/mingw/mirror.php?num=2&fname=mingw-w64-bin-x86_64-20120225.7z
Run gdb as follows:
gdb.exe -i mi hello.exe
Then enter
-break-insert main
this crashes gdb 7.4
While this is primarily an issue of fpc and while such a broken file can not be
debugged, it still should not lead to a crash. Especially since previous gdb
versions were able to detect the error
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2012-04-24 13:35 [Bug gdb/14014] New: win64 crash with bad dwarf2 symbols (7.4 crash / 7.3 gives error expected) gdb.bugs at mfriebe dot de
2012-04-24 20:20 ` [Bug gdb/14014] " tromey at redhat dot com
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