🚀 go-pugleaf

     I wish to report a bug in gcc-2.3.3 on a SUN.
     
     I  have  built  gcc-2.3.3 on a Sun Sparcstation at SunOS4.1.1.  The
configure option was "sparc-sun-sunos4.1" and I  used  CFLAGS=-O  during
the makeing, which completed with no errors.

     The  following  simple  program dies with a segmentation fault.  It
runs correctly with gcc-2.3.3 on an SG Indigo, with Suns own cc compiler
(and with other c compilers on other platforms). 

     It  appears  that the address of the "string-within-a-structure" is
not calculated correctly.  I append the source and the assembler listing
produced by gcc -S. 


====================  Begin test source ====================
#include <stdio.h>
#include <string.h>

struct button {
         char *str ;
         int  opdisp ;
} ;

struct button buttons[2] = {
     { "ab00", 0, },
     { "ab01", 1, },
};
     
void main()
{
 
   printf("Strings are %s and %s\n", buttons[0].str, buttons[1].str);
   strcpy(buttons[0].str, "zz00");
   strcpy(buttons[1].str, "zz01");
   printf("Strings become %s and %s\n", buttons[0].str, buttons[1].str);
   return;
}
==================== End test source ====================

==================== Begin assembler listing ====================
gcc2_compiled.:
	.global _buttons
.text
	.align 8
LC0:
	.ascii "ab00\0"
	.align 8
LC1:
	.ascii "ab01\0"
.data
	.align 4
_buttons:
	.word	LC0
	.word	0
	.word	LC1
	.word	1
.text
	.align 8
LC2:
	.ascii "Strings are %s and %s\12\0"
	.align 8
LC3:
	.ascii "zz00\0"
	.align 8
LC4:
	.ascii "zz01\0"
	.align 8
LC5:
	.ascii "Strings become %s and %s\12\0"
	.align 4
	.global _main
	.proc	020
_main:
	!#PROLOGUE# 0
	save %sp,-136,%sp
	!#PROLOGUE# 1
	call ___main,0
	nop
	sethi %hi(_buttons),%o1
	sethi %hi(_buttons+8),%o2
	sethi %hi(LC2),%o3
	or %o3,%lo(LC2),%o0
	ld [%o1+%lo(_buttons)],%o1
	ld [%o2+%lo(_buttons+8)],%o2
	call _printf,0
	nop
	sethi %hi(_buttons),%o1
	ld [%o1+%lo(_buttons)],%o0
	sethi %hi(LC3),%o2
	or %o2,%lo(LC3),%o1
	call _strcpy,0
	nop
	sethi %hi(_buttons+8),%o1
	ld [%o1+%lo(_buttons+8)],%o0
	sethi %hi(LC4),%o2
	or %o2,%lo(LC4),%o1
	call _strcpy,0
	nop
	sethi %hi(_buttons),%o1
	sethi %hi(_buttons+8),%o2
	sethi %hi(LC5),%o3
	or %o3,%lo(LC5),%o0
	ld [%o1+%lo(_buttons)],%o1
	ld [%o2+%lo(_buttons+8)],%o2
	call _printf,0
	nop
	b L1
	nop
L1:
	ret
	restore
==================== End assembler listing ====================




-------------------------- Gordon Lack ----------------------------------
The contents of this message *may* reflect my personal opinion.  They are
*not* intended to reflect those of my employer, or anyone else.