[Bug 21422] New: winedbg cannot find local symbols in EXE.
http://bugs.winehq.org/show_bug.cgi?id=21422 Summary: winedbg cannot find local symbols in EXE. Product: Wine Version: 1.1.36 Platform: x86 OS/Version: Linux Status: UNCONFIRMED Severity: normal Priority: P2 Component: winedbg AssignedTo: wine-bugs(a)winehq.org ReportedBy: donpedro(a)tdcadsl.dk While trying to debug: http://bugs.winehq.org/show_bug.cgi?id=21388 (test.exe - attachment #1). ,i found this bug in winedbg. winedump finds all of the symbols, but winedbg cannot do the same. so: "break __do_global_dtors" cannot find the symbol. I tried to debug winedbg/dbghelp.dll a bit to find the problem and found some hints (i am not sure if all of it is correct): 1) Module_get_container() does not return the correct module. It returns "/lib/libc" as the container for "test.exe". This does not seem right. If i hack myself around this i get to: 2) It would seem that winedbg/debughlp.dll only loads "export" symbols? As the EXE has no exports then no symbols are found.... is this right? What about all of the other symbols? Furthermore, if i force the debugger to break at the correct place, the debugger seems to show the wrong disassembly. Not sure if that is the same bug or a different one. -- Configure bugmail: http://bugs.winehq.org/userprefs.cgi?tab=email Do not reply to this email, post in Bugzilla using the above URL to reply. ------- You are receiving this mail because: ------- You are watching all bug changes.
http://bugs.winehq.org/show_bug.cgi?id=21422 Peter Dons Tychsen <donpedro(a)tdcadsl.dk> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |eric.pouech(a)orange.fr --- Comment #1 from Peter Dons Tychsen <donpedro(a)tdcadsl.dk> 2010-01-19 19:03:26 --- Adding Eric to CC as he seems to be the champion of winedbg/dbghelp. Hope he does not mind. -- Configure bugmail: http://bugs.winehq.org/userprefs.cgi?tab=email Do not reply to this email, post in Bugzilla using the above URL to reply. ------- You are receiving this mail because: ------- You are watching all bug changes.
http://bugs.winehq.org/show_bug.cgi?id=21422 --- Comment #2 from Eric Pouech <eric.pouech(a)orange.fr> 2010-01-20 15:24:29 --- #1 is wrong a/ test.exe doesn't any debug information b/ it just contains a COFF symbol table (likely generated by mingw), and no dwarf/stabs/codeview or even COFF debug info what's wrong is that dbghelp doen't try to load the COFF symbol table when no debug info is present (is just tries to load the EXPORT table, which happens to be empty) the module computation is likely correct, but the symbol you're looking for is present in two modules, but as dbghelp doesn't handle correctly the test.exe module, it only locates one symbol real fix is to try to load the COFF symbol table before the export table that shouldn't be too long to do, just need to find time in order to find time to decide when to do it -- Configure bugmail: http://bugs.winehq.org/userprefs.cgi?tab=email Do not reply to this email, post in Bugzilla using the above URL to reply. ------- You are receiving this mail because: ------- You are watching all bug changes.
http://bugs.winehq.org/show_bug.cgi?id=21422 --- Comment #3 from Peter Dons Tychsen <donpedro(a)tdcadsl.dk> 2010-01-20 15:58:25 --- Thanks for looking at it Eric.
a/ test.exe doesn't any debug information Right, but it does have the symbols and the offsets.
the module computation is likely correct, but the symbol you're looking for is present in two modules, but as dbghelp doesn't handle correctly the test.exe module, it only locates one symbol You might be right, but i still don't understand how module_get_container() can return "lib/libc" for "test.exe". Does it make sense?
real fix is to try to load the COFF symbol table before the export table that shouldn't be too long to do, just need to find time in order to find time to decide when to do it Ok, great. Thanks again for looking into it.
/pedro -- Configure bugmail: http://bugs.winehq.org/userprefs.cgi?tab=email Do not reply to this email, post in Bugzilla using the above URL to reply. ------- You are receiving this mail because: ------- You are watching all bug changes.
http://bugs.winehq.org/show_bug.cgi?id=21422 --- Comment #4 from Eric Pouech <eric.pouech(a)orange.fr> 2010-01-21 15:20:58 --- Created an attachment (id=25825) --> (http://bugs.winehq.org/attachment.cgi?id=25825) tentative patch tentative patch (untested) does it help a bit ? A+ -- Configure bugmail: http://bugs.winehq.org/userprefs.cgi?tab=email Do not reply to this email, post in Bugzilla using the above URL to reply. ------- You are receiving this mail because: ------- You are watching all bug changes.
http://bugs.winehq.org/show_bug.cgi?id=21422 --- Comment #5 from Peter Dons Tychsen <donpedro(a)tdcadsl.dk> 2010-01-23 10:52:23 --- Thanks for the patch, but it does not work. You can test it by "break __do_global_dtors". This should work. Thanks, /pedro -- Configure bugmail: http://bugs.winehq.org/userprefs.cgi?tab=email Do not reply to this email, post in Bugzilla using the above URL to reply. ------- You are receiving this mail because: ------- You are watching all bug changes.
http://bugs.winehq.org/show_bug.cgi?id=21422 --- Comment #6 from Eric Pouech <eric.pouech(a)orange.fr> 2010-06-28 14:43:49 --- this should be fixed in current git A+ -- Configure bugmail: http://bugs.winehq.org/userprefs.cgi?tab=email Do not reply to this email, post in Bugzilla using the above URL to reply. ------- You are receiving this mail because: ------- You are watching all bug changes.
http://bugs.winehq.org/show_bug.cgi?id=21422 Eric Pouech <eric.pouech(a)orange.fr> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |RESOLVED Resolution| |FIXED --- Comment #7 from Eric Pouech <eric.pouech(a)orange.fr> 2010-07-03 06:57:59 --- fixed in current git -- Configure bugmail: http://bugs.winehq.org/userprefs.cgi?tab=email Do not reply to this email, post in Bugzilla using the above URL to reply. ------- You are receiving this mail because: ------- You are watching all bug changes.
http://bugs.winehq.org/show_bug.cgi?id=21422 Alexandre Julliard <julliard(a)winehq.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|RESOLVED |CLOSED --- Comment #8 from Alexandre Julliard <julliard(a)winehq.org> 2010-07-09 11:57:22 --- Closing bugs fixed in 1.2-rc7. -- Configure bugmail: http://bugs.winehq.org/userprefs.cgi?tab=email Do not reply to this email, post in Bugzilla using the above URL to reply. ------- You are receiving this mail because: ------- You are watching all bug changes.
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