* Q: -fpic and $_GLOBAL_OFFSET_TABLE_
@ 2003-07-16 14:30 Oleg Nesterov
0 siblings, 0 replies; only message in thread
From: Oleg Nesterov @ 2003-07-16 14:30 UTC (permalink / raw)
To: linux-gcc
Hello.
I thought, that &GOT == $_GLOBAL_OFFSET_TABLE_ + .
$ cat test.c
void test(void)
{
asm volatile (
"addl $_GLOBAL_OFFSET_TABLE_, %eax\n"
"addl $_GLOBAL_OFFSET_TABLE_, %ecx\n"
);
}
$ cc -c -fpic -fomit-frame-pointer test.c && ld -shared -o test.so test.o && objdump -d test.so
test.so: file format elf32-i386
Disassembly of section .text:
0000018c <test>:
18c: 05 0d 10 00 00 addl $0x100d,%eax ==> &GOT = 0x18c + 0x100d = 0x1199
191: 81 c1 07 10 00 00 addl $0x1007,%ecx ==> &GOT = 0x191 + 0x1007 = 0x1198
197: c3 ret
How can it be?
Oleg.
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2003-07-16 14:30 Q: -fpic and $_GLOBAL_OFFSET_TABLE_ Oleg Nesterov
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