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* [Bug middle-end/39291] New: _Unwind_Backtrace fails.
@ 2009-02-24 14:38 pluto at agmk dot net
2009-02-24 14:40 ` [Bug middle-end/39291] " pluto at agmk dot net
` (9 more replies)
0 siblings, 10 replies; 11+ messages in thread
From: pluto at agmk dot net @ 2009-02-24 14:38 UTC (permalink / raw)
To: gcc-bugs
Hi,
during porting some software to mingw i've noticed that
unwind_backtrace has some problems. i've tested it with
sjlj and dw2 variant. here're results:
D:\src\mingw-unwind>u-sjlj.exe
foo:enter
bar:enter
zoo:enter
boom!
signalHandler:enter
D:\src\mingw-unwind>u-dw2.exe
foo:enter
bar:enter
zoo:enter
boom!
signalHandler:enter
lookupSymbol: 00401887
lookupSymbol: 0040166A
signalHandler:longjmp
as far i can see both tests got a sigsegv:
Starting program: D:\src\mingw-unwind/u-sjlj.exe
[New thread 2180.0x1c0]
Error: dll starting at 0x77d40000 not found.
Error while mapping shared library sections:
NOT_AN_IMAGE: No such file or directory.
Error while mapping shared library sections:
C:\WINDOWS\SysWOW64\ntdll32.dll: No such file or directory.
Error: dll starting at 0x77d40000 not found.
Error: dll starting at 0x77c20000 not found.
foo:enter
bar:enter
zoo:enter
boom!
Program received signal SIGSEGV, Segmentation fault.
0x0040184f in zoo () at u.c:36
36 *p = 0;
(gdb) c
Continuing.
signalHandler:enter
Program received signal SIGSEGV, Segmentation fault.
0x00402378 in _Unwind_GetIP ()
(gdb) bt
#0 0x00402378 in _Unwind_GetIP ()
#1 0x004017bc in helper (ctx=0x22fa44, data=0x0) at u.c:14
#2 0x00402b31 in _Unwind_Backtrace ()
#3 0x004017f7 in signalHandler (signalNumber=11) at u.c:24
#4 0x0040166a in _gnu_exception_handler@4 ()
#5 0x00401711 in __mingw_vex ()
#6 0x7d64dbcb in ?? ()
#7 0x0022fad8 in ?? ()
#8 0x0022fb84 in ?? ()
#9 0x0022fb84 in ?? ()
#10 0x003f24f4 in ?? ()
#11 0x0022fb84 in ?? ()
#12 0x0022fbd4 in ?? ()
#13 0x00000000 in ?? ()
Starting program: D:\src\mingw-unwind/u-dw2.exe
[New thread 1308.0x8c8]
Error: dll starting at 0x77d40000 not found.
Error while mapping shared library sections:
NOT_AN_IMAGE: No such file or directory.
Error while mapping shared library sections:
C:\WINDOWS\SysWOW64\ntdll32.dll: No such file or directory.
Error: dll starting at 0x77d40000 not found.
Error: dll starting at 0x77c20000 not found.
foo:enter
bar:enter
zoo:enter
boom!
Program received signal SIGSEGV, Segmentation fault.
0x004018df in zoo () at u.c:36
36 *p = 0;
(gdb) c
Continuing.
signalHandler:enter
lookupSymbol: 00401887
lookupSymbol: 0040166A
signalHandler:longjmp
Program received signal SIGSEGV, Segmentation fault.
0x00409465 in initialized ()
(gdb) bt
#0 0x00409465 in initialized ()
#1 0x004018a7 in signalHandler (signalNumber=11) at u.c:26
#2 0x0040166a in _gnu_exception_handler@4 ()
#3 0x00401711 in __mingw_vex ()
#4 0x7d64dbcb in ?? ()
#5 0x0022fad8 in ?? ()
#6 0x0022fb84 in ?? ()
#7 0x0022fb84 in ?? ()
#8 0x003f24f4 in ?? ()
#9 0x0022fb84 in ?? ()
#10 0x0022fbd4 in ?? ()
#11 0x00000000 in ?? ()
of course on linux it works perfectly.
testcases were built with 4.4.0-20090220 and latest minw64 crt from svn.
--
Summary: _Unwind_Backtrace fails.
Product: gcc
Version: 4.4.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: middle-end
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: pluto at agmk dot net
GCC build triplet: x86_64-gnu-linux
GCC host triplet: x86_64-gnu-linux
GCC target triplet: i486-pc-mingw32
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=39291
^ permalink raw reply [flat|nested] 11+ messages in thread
* [Bug middle-end/39291] _Unwind_Backtrace fails.
2009-02-24 14:38 [Bug middle-end/39291] New: _Unwind_Backtrace fails pluto at agmk dot net
@ 2009-02-24 14:40 ` pluto at agmk dot net
2009-02-25 2:29 ` [Bug target/39291] " dannysmith at users dot sourceforge dot net
` (8 subsequent siblings)
9 siblings, 0 replies; 11+ messages in thread
From: pluto at agmk dot net @ 2009-02-24 14:40 UTC (permalink / raw)
To: gcc-bugs
------- Comment #1 from pluto at agmk dot net 2009-02-24 14:39 -------
Created an attachment (id=17357)
--> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=17357&action=view)
testcase.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=39291
^ permalink raw reply [flat|nested] 11+ messages in thread
* [Bug target/39291] _Unwind_Backtrace fails.
2009-02-24 14:38 [Bug middle-end/39291] New: _Unwind_Backtrace fails pluto at agmk dot net
2009-02-24 14:40 ` [Bug middle-end/39291] " pluto at agmk dot net
@ 2009-02-25 2:29 ` dannysmith at users dot sourceforge dot net
2009-02-25 8:25 ` pluto at agmk dot net
` (7 subsequent siblings)
9 siblings, 0 replies; 11+ messages in thread
From: dannysmith at users dot sourceforge dot net @ 2009-02-25 2:29 UTC (permalink / raw)
To: gcc-bugs
------- Comment #2 from dannysmith at users dot sourceforge dot net 2009-02-25 02:28 -------
I get this with your testcase on mingw32, DW@ build:
GNU C (GCC) version 4.4.0 20090221 (experimental) (mingw32)
gcc -fexceptions -g u.c
foo:enter
bar:enter
zoo:enter
boom!
signalHandler:enter
lookupSymbol: 00401407
lookupSymbol: 00401232
signalHandler:longjmp
zoo:exit
bar:exit
foo:exit
alive!
Danny
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=39291
^ permalink raw reply [flat|nested] 11+ messages in thread
* [Bug target/39291] _Unwind_Backtrace fails.
2009-02-24 14:38 [Bug middle-end/39291] New: _Unwind_Backtrace fails pluto at agmk dot net
2009-02-24 14:40 ` [Bug middle-end/39291] " pluto at agmk dot net
2009-02-25 2:29 ` [Bug target/39291] " dannysmith at users dot sourceforge dot net
@ 2009-02-25 8:25 ` pluto at agmk dot net
2009-02-28 2:38 ` dannysmith at users dot sourceforge dot net
` (6 subsequent siblings)
9 siblings, 0 replies; 11+ messages in thread
From: pluto at agmk dot net @ 2009-02-25 8:25 UTC (permalink / raw)
To: gcc-bugs
------- Comment #3 from pluto at agmk dot net 2009-02-25 08:24 -------
(In reply to comment #2)
> I get this with your testcase on mingw32, DW@ build:
> GNU C (GCC) version 4.4.0 20090221 (experimental) (mingw32)
i have a gcc/dw2 configured with:
Using built-in specs.
Target: i486-pc-mingw32
Configured with: ../configure --target=i486-pc-mingw32 --with-arch=i486
--prefix=/local/devel/toolchain44/i486-pc-mingw32.host64
--with-sysroot=/local/devel/toolchain44/i486-pc-mingw32.host64
--libdir=/local/devel/toolchain44/i486-pc-mingw32.host64/lib
--libexecdir=/local/devel/toolchain44/i486-pc-mingw32.host64/lib
--with-slibdir=/local/devel/toolchain44/i486-pc-mingw32.host64/lib
--with-gmp-include=/home/pawels/toolchain/trunk/gcc-math-runtime/include
--with-gmp-lib=/home/pawels/toolchain/trunk/gcc-math-runtime/lib
--with-mpfr-include=/home/pawels/toolchain/trunk/gcc-math-runtime/include
--with-mpfr-lib=/home/pawels/toolchain/trunk/gcc-math-runtime/lib
--disable-multilib --disable-nls --disable-libgomp --disable-libmudflap
--disable-libssp --disable-libstdcxx-pch --with-pic --enable-c99
--enable-long-long --disable-win32-registry --enable-threads=win32
--disable-sjlj-exceptions --enable-shared --enable-__cxa_atexit
--enable-languages=c,c++ --disable-symvers --with-pic --with-long-double-128
--disable-cld --disable-bootstrap
Thread model: win32
gcc version 4.4.0 20090220 (experimental) (GCC)
> gcc -fexceptions -g u.c
>
> foo:enter
> bar:enter
> zoo:enter
> boom!
> signalHandler:enter
> lookupSymbol: 00401407
> lookupSymbol: 00401232
> signalHandler:longjmp
> zoo:exit
> bar:exit
> foo:exit
> alive!
could you attach a precompiled .exe? i'll check it on my winxp64.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=39291
^ permalink raw reply [flat|nested] 11+ messages in thread
* [Bug target/39291] _Unwind_Backtrace fails.
2009-02-24 14:38 [Bug middle-end/39291] New: _Unwind_Backtrace fails pluto at agmk dot net
` (2 preceding siblings ...)
2009-02-25 8:25 ` pluto at agmk dot net
@ 2009-02-28 2:38 ` dannysmith at users dot sourceforge dot net
2009-02-28 10:44 ` pluto at agmk dot net
` (5 subsequent siblings)
9 siblings, 0 replies; 11+ messages in thread
From: dannysmith at users dot sourceforge dot net @ 2009-02-28 2:38 UTC (permalink / raw)
To: gcc-bugs
------- Comment #4 from dannysmith at users dot sourceforge dot net 2009-02-28 02:38 -------
Created an attachment (id=17376)
--> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=17376&action=view)
testcase executable built on mingw32
testcase executable built on mingw32 attached
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=39291
^ permalink raw reply [flat|nested] 11+ messages in thread
* [Bug target/39291] _Unwind_Backtrace fails.
2009-02-24 14:38 [Bug middle-end/39291] New: _Unwind_Backtrace fails pluto at agmk dot net
` (3 preceding siblings ...)
2009-02-28 2:38 ` dannysmith at users dot sourceforge dot net
@ 2009-02-28 10:44 ` pluto at agmk dot net
2009-03-16 21:24 ` pluto at agmk dot net
` (4 subsequent siblings)
9 siblings, 0 replies; 11+ messages in thread
From: pluto at agmk dot net @ 2009-02-28 10:44 UTC (permalink / raw)
To: gcc-bugs
------- Comment #5 from pluto at agmk dot net 2009-02-28 10:43 -------
(In reply to comment #4)
> Created an attachment (id=17376)
--> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=17376&action=view) [edit]
> testcase executable built on mingw32
>
> testcase executable built on mingw32 attached
yours u.exe works, but yours u.exe has differents size:
118 167 u-dw2.exe
115 557 u.exe
u-dw2.exe: file format pei-i386
Sections:
Idx Name Size VMA LMA File off Algn
0 .text 000054c4 00401000 00401000 00000400 2**4
CONTENTS, ALLOC, LOAD, READONLY, CODE, DATA
1 .data 00000030 00407000 00407000 00005a00 2**2
CONTENTS, ALLOC, LOAD, DATA
2 .rdata 00000c28 00408000 00408000 00005c00 2**2
CONTENTS, ALLOC, LOAD, READONLY, DATA
3 .bss 00000538 00409000 00409000 00000000 2**5
ALLOC
4 .idata 00000558 0040a000 0040a000 00006a00 2**2
CONTENTS, ALLOC, LOAD, DATA
5 .CRT 00000034 0040b000 0040b000 00007000 2**2
CONTENTS, ALLOC, LOAD, DATA
6 .tls 00000008 0040c000 0040c000 00007200 2**2
CONTENTS, ALLOC, LOAD, DATA
(...debug sections...)
u.exe: file format pei-i386
Sections:
Idx Name Size VMA LMA File off Algn
0 .text 000042f4 00401000 00401000 00000400 2**4
CONTENTS, ALLOC, LOAD, READONLY, CODE, DATA
1 .data 00000020 00406000 00406000 00004800 2**2
CONTENTS, ALLOC, LOAD, DATA
2 .rdata 00000d30 00407000 00407000 00004a00 2**2
CONTENTS, ALLOC, LOAD, READONLY, DATA
3 .bss 000000c8 00408000 00408000 00000000 2**3
ALLOC
4 .idata 00000374 00409000 00409000 00005800 2**2
CONTENTS, ALLOC, LOAD, DATA
(...debug sections...)
as you can see my u-dw2.exe has more sections, so i assume
that we're using different win32 crt. i'm using mingw-w64/svn
compiled with i486-pc-mingw-gcc (solution proposed by K.Tietz).
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=39291
^ permalink raw reply [flat|nested] 11+ messages in thread
* [Bug target/39291] _Unwind_Backtrace fails.
2009-02-24 14:38 [Bug middle-end/39291] New: _Unwind_Backtrace fails pluto at agmk dot net
` (4 preceding siblings ...)
2009-02-28 10:44 ` pluto at agmk dot net
@ 2009-03-16 21:24 ` pluto at agmk dot net
2009-03-22 12:17 ` pluto at agmk dot net
` (3 subsequent siblings)
9 siblings, 0 replies; 11+ messages in thread
From: pluto at agmk dot net @ 2009-03-16 21:24 UTC (permalink / raw)
To: gcc-bugs
------- Comment #6 from pluto at agmk dot net 2009-03-16 21:24 -------
i've tested u-dw2.exe on wine and got more info.
$ ./u-dw2.exe
err:process:start_wineboot failed to start wineboot, err 2
err:process:__wine_kernel_init boot event wait timed out
fixme:msvcrt:__lconv_init stub
foo:enter
bar:enter
zoo:enter
boom!
signalHandler:enter
lookupSymbol: 00401887
lookupSymbol: 0040166A
signalHandler:longjmp
err:seh:raise_exception Unhandled exception code c0000096 flags 0 addr 0x409461
$ i486-pc-mingw32-objdump -hw u-dw2.exe
u-dw2.exe: file format pei-i386
Sections:
Idx Name Size VMA LMA File off Algn
Flags
0 .text 000054c4 00401000 00401000 00000400 2**4 CONTENTS,
ALLOC, LOAD, READONLY, CODE, DATA
1 .data 00000030 00407000 00407000 00005a00 2**2 CONTENTS,
ALLOC, LOAD, DATA
2 .rdata 00000c28 00408000 00408000 00005c00 2**2 CONTENTS,
ALLOC, LOAD, READONLY, DATA
3 .bss 00000538 00409000 00409000 00000000 2**5 ALLOC
4 .idata 00000558 0040a000 0040a000 00006a00 2**2 CONTENTS,
ALLOC, LOAD, DATA
5 .CRT 00000034 0040b000 0040b000 00007000 2**2 CONTENTS,
ALLOC, LOAD, DATA
6 .tls 00000008 0040c000 0040c000 00007200 2**2 CONTENTS,
ALLOC, LOAD, DATA
the 0xc0000096 code means 'EXCEPTION_PRIV_INSTRUCTION'
and the 0x409461 points to the .bss section.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=39291
^ permalink raw reply [flat|nested] 11+ messages in thread
* [Bug target/39291] _Unwind_Backtrace fails.
2009-02-24 14:38 [Bug middle-end/39291] New: _Unwind_Backtrace fails pluto at agmk dot net
` (5 preceding siblings ...)
2009-03-16 21:24 ` pluto at agmk dot net
@ 2009-03-22 12:17 ` pluto at agmk dot net
2009-03-22 15:44 ` pluto at agmk dot net
` (2 subsequent siblings)
9 siblings, 0 replies; 11+ messages in thread
From: pluto at agmk dot net @ 2009-03-22 12:17 UTC (permalink / raw)
To: gcc-bugs
------- Comment #7 from pluto at agmk dot net 2009-03-22 12:16 -------
haa! i've found the core problem.
on my winxp64 i have DEP (data execution prevention) turned on
for all programs and this is why the testcase (longjmp?) fails.
this looks weird beacuse longjmp on x86-64 with NX-bit enabled
works fine.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=39291
^ permalink raw reply [flat|nested] 11+ messages in thread
* [Bug target/39291] _Unwind_Backtrace fails.
2009-02-24 14:38 [Bug middle-end/39291] New: _Unwind_Backtrace fails pluto at agmk dot net
` (6 preceding siblings ...)
2009-03-22 12:17 ` pluto at agmk dot net
@ 2009-03-22 15:44 ` pluto at agmk dot net
2009-03-22 15:45 ` pluto at agmk dot net
2009-03-22 21:17 ` pluto at agmk dot net
9 siblings, 0 replies; 11+ messages in thread
From: pluto at agmk dot net @ 2009-03-22 15:44 UTC (permalink / raw)
To: gcc-bugs
------- Comment #8 from pluto at agmk dot net 2009-03-22 15:44 -------
(In reply to comment #7)
> haa! i've found the core problem.
> on my winxp64 i have DEP (data execution prevention) turned on
> for all programs and this is why the testcase (longjmp?) fails.
> this looks weird beacuse longjmp on x86-64 with NX-bit enabled
> works fine.
please ignore this comment, i've just ran wrong .exe after
changing DEP settings :) but i've found new details
with testcase reduced to setjmp/longjmp comparing gcc-4.4.0
and gcc-4.3.3(tdm-dragon-build).
D:\src\mingw-unwind>u-433-dw2-tdm-dragon.exe
longjmp
alive!
D:\src\mingw-unwind>u-440-dw2.exe
longjmp
Program received signal SIGSEGV, Segmentation fault.
0x00405460 in fctMsvcrtLongJmp ()
(gdb) bt
#0 0x00405460 in fctMsvcrtLongJmp ()
#1 0x004017ae in main () at u.c:12
(gdb) disassemble
Dump of assembler code for function fctMsvcrtLongJmp:
0x00405460 <fctMsvcrtLongJmp+0>: sbb %bh,-0x44(%esi)
0x00405463 <fctMsvcrtLongJmp+3>: ja 0x405466 <initialized+2>
the u-440-dw2.exe doesn't import longjmp symbol from msvcrt.dll
while u-433-dw2-tdm-dragon.exe imports longjmp and _setjmp.
Kai, could you check mingw-w64-crt?
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=39291
^ permalink raw reply [flat|nested] 11+ messages in thread
* [Bug target/39291] _Unwind_Backtrace fails.
2009-02-24 14:38 [Bug middle-end/39291] New: _Unwind_Backtrace fails pluto at agmk dot net
` (7 preceding siblings ...)
2009-03-22 15:44 ` pluto at agmk dot net
@ 2009-03-22 15:45 ` pluto at agmk dot net
2009-03-22 21:17 ` pluto at agmk dot net
9 siblings, 0 replies; 11+ messages in thread
From: pluto at agmk dot net @ 2009-03-22 15:45 UTC (permalink / raw)
To: gcc-bugs
------- Comment #9 from pluto at agmk dot net 2009-03-22 15:45 -------
Created an attachment (id=17514)
--> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=17514&action=view)
new testcase with binaries.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=39291
^ permalink raw reply [flat|nested] 11+ messages in thread
* [Bug target/39291] _Unwind_Backtrace fails.
2009-02-24 14:38 [Bug middle-end/39291] New: _Unwind_Backtrace fails pluto at agmk dot net
` (8 preceding siblings ...)
2009-03-22 15:45 ` pluto at agmk dot net
@ 2009-03-22 21:17 ` pluto at agmk dot net
9 siblings, 0 replies; 11+ messages in thread
From: pluto at agmk dot net @ 2009-03-22 21:17 UTC (permalink / raw)
To: gcc-bugs
------- Comment #10 from pluto at agmk dot net 2009-03-22 21:17 -------
finally, not a gcc bug.
the mingw-w64-crt/misc/mingw_getsp.S has bugs:
- it forces .code64 even for 32-bit mode.
- it jumps directly into data segement -> jmp (_fctMsvcrtLongJmp)
i've tested following patch:
@@ -3,8 +3,6 @@
* This file is part of the w64 mingw-runtime package.
* No warranty is given; refer to the file DISCLAIMER within this package.
*/
- .file "ceill.S"
- .code64
.text
.align 4
.globl _mingw_getsp
@@ -26,5 +24,5 @@
leaq _fctMsvcrtLongJmp(%rip), %rax
jmpq *(%rax)
#else
- jmp (_fctMsvcrtLongJmp)
+ jmp *(_fctMsvcrtLongJmp)
#endif
but it crashes later in msvcrt.dll:
Breakpoint 1, 0x004023a5 in longjmp ()
(gdb) disassemble
Dump of assembler code for function longjmp:
0x004023a5 <longjmp+0>: jmp *0x405460
0x004023ab <longjmp+6>: nop
(gdb) disassemble *0x405460
Dump of assembler code for function msvcrt!longjmp:
0x77bc7e18 <msvcrt!longjmp+0>: mov 0x4(%esp),%ebx
0x77bc7e1c <msvcrt!longjmp+4>: mov (%ebx),%ebp
0x77bc7e1e <msvcrt!longjmp+6>: mov 0x18(%ebx),%esi
(...)
(gdb) c
Continuing.
Program received signal SIGSEGV, Segmentation fault.
0x77bc6481 in msvcrt!_local_unwind2 () from C:\WINDOWS\syswow64\msvcrt.dll
(gdb) disassemble
Dump of assembler code for function msvcrt!_local_unwind2:
0x77bc645f <msvcrt!_local_unwind2+0>: push %ebx
0x77bc6460 <msvcrt!_local_unwind2+1>: push %esi
0x77bc6461 <msvcrt!_local_unwind2+2>: push %edi
0x77bc6462 <msvcrt!_local_unwind2+3>: mov 0x10(%esp),%eax
0x77bc6466 <msvcrt!_local_unwind2+7>: push %ebp
0x77bc6467 <msvcrt!_local_unwind2+8>: push %eax
0x77bc6468 <msvcrt!_local_unwind2+9>: push $0xfffffffe
0x77bc646a <msvcrt!_local_unwind2+11>: push $0x77bc6424
0x77bc646f <msvcrt!_local_unwind2+16>: pushl %fs:0x0
0x77bc6476 <msvcrt!_local_unwind2+23>: mov %esp,%fs:0x0
0x77bc647d <msvcrt!_local_unwind2+30>: mov 0x24(%esp),%eax
0x77bc6481 <msvcrt!_local_unwind2+34>: mov 0x8(%eax),%ebx
0x77bc6484 <msvcrt!_local_unwind2+37>: mov 0xc(%eax),%esi
0x77bc6487 <msvcrt!_local_unwind2+40>: cmp $0xffffffff,%esi
0x77bc648a <msvcrt!_local_unwind2+43>: je 0x77bc64c1
<msvcrt!_local_unwind2+98>
0x77bc648c <msvcrt!_local_unwind2+45>: cmpl $0xffffffff,0x28(%esp)
0x77bc6491 <msvcrt!_local_unwind2+50>: je 0x77bc6499
<msvcrt!_local_unwind2+58>
0x77bc6493 <msvcrt!_local_unwind2+52>: cmp 0x28(%esp),%esi
0x77bc6497 <msvcrt!_local_unwind2+56>: jbe 0x77bc64c1
<msvcrt!_local_unwind2+98>
0x77bc6499 <msvcrt!_local_unwind2+58>: lea (%esi,%esi,2),%esi
0x77bc649c <msvcrt!_local_unwind2+61>: mov (%ebx,%esi,4),%ecx
0x77bc649f <msvcrt!_local_unwind2+64>: mov %ecx,0x8(%esp)
0x77bc64a3 <msvcrt!_local_unwind2+68>: mov %ecx,0xc(%eax)
0x77bc64a6 <msvcrt!_local_unwind2+71>: cmpl $0x0,0x4(%ebx,%esi,4)
0x77bc64ab <msvcrt!_local_unwind2+76>: jne 0x77bc64bf
<msvcrt!_local_unwind2+96>
0x77bc64ad <msvcrt!_local_unwind2+78>: push $0x101
0x77bc64b2 <msvcrt!_local_unwind2+83>: mov 0x8(%ebx,%esi,4),%eax
0x77bc64b6 <msvcrt!_local_unwind2+87>: call 0x77bc64fb
<msvcrt!_abnormal_termination+44>
0x77bc64bb <msvcrt!_local_unwind2+92>: call *0x8(%ebx,%esi,4)
0x77bc64bf <msvcrt!_local_unwind2+96>: jmp 0x77bc647d
<msvcrt!_local_unwind2+30>
0x77bc64c1 <msvcrt!_local_unwind2+98>: popl %fs:0x0
0x77bc64c8 <msvcrt!_local_unwind2+105>: add $0x10,%esp
0x77bc64cb <msvcrt!_local_unwind2+108>: pop %edi
0x77bc64cc <msvcrt!_local_unwind2+109>: pop %esi
0x77bc64cd <msvcrt!_local_unwind2+110>: pop %ebx
0x77bc64ce <msvcrt!_local_unwind2+111>: ret
--
pluto at agmk dot net changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |RESOLVED
Resolution| |INVALID
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=39291
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2009-02-24 14:38 [Bug middle-end/39291] New: _Unwind_Backtrace fails pluto at agmk dot net
2009-02-24 14:40 ` [Bug middle-end/39291] " pluto at agmk dot net
2009-02-25 2:29 ` [Bug target/39291] " dannysmith at users dot sourceforge dot net
2009-02-25 8:25 ` pluto at agmk dot net
2009-02-28 2:38 ` dannysmith at users dot sourceforge dot net
2009-02-28 10:44 ` pluto at agmk dot net
2009-03-16 21:24 ` pluto at agmk dot net
2009-03-22 12:17 ` pluto at agmk dot net
2009-03-22 15:44 ` pluto at agmk dot net
2009-03-22 15:45 ` pluto at agmk dot net
2009-03-22 21:17 ` pluto at agmk dot net
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