mirror of
git://git.musl-libc.org/musl
synced 2024-12-16 03:35:06 +00:00
dc031ee0b1
static-linked PIE files need startup code to relocate themselves, much like the dynamic linker does. rcrt1.c reuses the code in dlstart.c, stage 1 of the dynamic linker, which in turn reuses crt_arch.h, to achieve static PIE with no new code. only relative relocations are supported. existing toolchains that don't yet support static PIE directly can be repurposed by passing "-shared -Wl,-Bstatic -Wl,-Bsymbolic" instead of "-static -pie" and substituting rcrt1.o in place of crt1.o. all libraries being linked must be built as PIC/PIE; TEXTRELs are not supported at this time.
16 lines
401 B
C
16 lines
401 B
C
#define SHARED
|
|
#define START "_start"
|
|
#define _dlstart_c _start_c
|
|
#include "../src/ldso/dlstart.c"
|
|
|
|
int main();
|
|
void _init() __attribute__((weak));
|
|
void _fini() __attribute__((weak));
|
|
_Noreturn int __libc_start_main(int (*)(), int, char **,
|
|
void (*)(), void(*)(), void(*)());
|
|
|
|
_Noreturn void __dls2(unsigned char *base, size_t *sp)
|
|
{
|
|
__libc_start_main(main, *sp, (void *)(sp+1), _init, _fini, 0);
|
|
}
|