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Subject: gnu/4042: gdb stackframe in static library shows not the calling function
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>Number:         4042
>Category:       gnu
>Synopsis:       gdb stackframe in static library shows not the calling function
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    freebsd-bugs
>State:          open
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Sun Jul  6 11:40:01 PDT 1997
>Last-Modified:
>Originator:     Dirk Meyer
>Organization:
privat
>Release:        FreeBSD 2.2.1-RELEASE i386
>Environment:

	

>Description:

	
	gdb doesn't sho the calling stack
	in a function of a static linked library.
	if an error ocurrs in the function,
	ther is no information of the calling stack frame.

>How-To-Repeat:

	
	compile the folowing sample, run it under gdb,
	show the calling stack.
/*
 st.c

 gcc: 2.7.2.1
 gdb: GDB 4.16 (i386-unknown-freebsd), Copyright 1996 Free Software Foundation, Inc.

 cc st.c -static -g
 gdb a.out 

GDB is free software and you are welcome to distribute copies of it
 under certain conditions; type "show copying" to see the conditions.
 There is absolutely no warranty for GDB; type "show warranty" for details.
 GDB 4.16 (i386-unknown-freebsd), Copyright 1996 Free Software Foundation, Inc...
 (gdb) run
 Starting program: /var/spool/dinoex/hub/a.out 
 a

 Program received signal SIGSEGV, Segmentation fault.
 0x11b5 in strlen ()
 (gdb) bt
 #0  0x11b5 in strlen ()
 #1  0x0 in ?? ()
 (gdb) quit
 The program is running.  Quit anyway (and kill it)? (y or n) y
*/

#include <string.h>

void main( void )
{
	size_t len;

	printf( "a\n" );
	len = strlen( NULL );
	printf( "b\n" );
}

/* EOF */

>Fix:

	
	none.

>Audit-Trail:
>Unformatted: