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Re: crash on the first statement in main()
- From: Sam Steingold <sds at gnu dot org>
- To: cygwin at cygwin dot com
- Date: 08 Jul 2003 18:43:14 -0400
- Subject: Re: crash on the first statement in main()
- Organization: disorganization
- References: <ubrwtwvmi.fsf@gnu.org>
- Reply-to: sds at gnu dot org
> * In message <ubrwtwvmi.fsf@gnu.org>
> * On the subject of "crash on the first statement in main()"
> * Sent on 19 Jun 2003 18:27:49 -0400
> * I write:
>
> I get a segfault on the first executable line in main() (confirmed in
> the debugger), both when produced by cygwin:
>
> gcc -W -Wswitch -Wcomment -Wpointer-arith -Wimplicit -Wreturn-type
> -Wno-sign-compare -falign-functions=4 -g -DDEBUG_OS_ERROR -DDEBUG_SPVW
> -DSAFETY=3 -DUNICODE -DEXPORT_SYSCALLS -DDIR_KEY -DDYNAMIC_FFI
> -DNO_SIGSEGV -I. -x none modules.o regexp.o regexi.o regex.o lisp.a
> -lintl libcharset.a libavcall.a libcallback.a -lreadline -lncurses
> -liconv -lm -o lisp.exe
> ...
> full/lisp.exe -B . -M base/lispinit.mem -norc -q -i regexp/regexp
> -x (saveinitmem "full/lispinit.mem")
> Signal 11
> make: *** [full] Error 1
>
> and mingw:
>
> gcc -mno-cygwin -W -Wswitch -Wcomment -Wpointer-arith -Wimplicit
> -Wreturn-type -falign-functions=4 -D_WIN32 -g -DDEBUG_OS_ERROR
> -DDEBUG_SPVW -DSAFETY=3 -DUNICODE -DEXPORT_SYSCALLS -DDIR_KEY
> -DDYNAMIC_FFI -DNO_GETTEXT -DNO_SIGSEGV -I. -x none modules.o regexp.o
> regexi.o regex.o lisp.a libcharset.a libavcall.a libcallback.a -luser32
> -lws2_32 -lole32 -luuid -o lisp.exe
> full/lisp.exe -B . -M base/lispinit.mem -norc -q -i regexp/regexp
> -x (saveinitmem "full/lispinit.mem")
> <win32 crash dialog box>
>
> the lines don't do anything special, in fact, "p <the offending line>"
> executes just fine in gdb right after the crash.
I forgot a crucial piece of information:
the segfault happens only with "-g"!
when I compile with "-O2", it works like a charm.
--
Sam Steingold (http://www.podval.org/~sds) running w2k
<http://www.camera.org> <http://www.iris.org.il> <http://www.memri.org/>
<http://www.mideasttruth.com/> <http://www.palestine-central.com/links.html>
Daddy, what does "format disk c: complete" mean?
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