Script started on Sat Mar 25 13:54:39 2006
~ $ cat >foo.c
char *x = "foo";
char y[8];
^D
~ $ cat >bar.c
extern char *x;
extern char y[8];
^D
~ $ gcc -Wall -O3 -g0 -S foo.c
~ $ gcc -Wall -O3 -g0 -S bar.c
~ $ cat foo.S
    .section __TEXT,__text,regular,pure_instructions
    .section __TEXT,__picsymbolstub1,symbol_stubs,pure_instructions,32
    .machine ppc
    .globl _x
    .cstring
    .align 2
LC0:
    .ascii "foo\0"
    .data
    .align 2
_x:
    .long    LC0
.comm _y,8
    .subsections_via_symbols
~ $ cat bar.S
    .section __TEXT,__text,regular,pure_instructions
    .section __TEXT,__picsymbolstub1,symbol_stubs,pure_instructions,32
    .machine ppc
    .subsections_via_symbols
~ $ exit

Script done on Sat Mar 25 13:56:19 2006