gnu/usr.bin/ld/sparc/md-static-funcs.c


/*
 * Simple SPARC relocations for the benefit of self-relocation of ld.so
 * avoiding the use of global variables (ie. reloc_bitshift[] et. al.).
 * Only types supported are RELOC_32 and RELOC_RELATIVE.
 *
 * This *must* be a static function, so it is not called through a jmpslot.
 */
static void
md_relocate_simple(r, relocation, addr)
struct relocation_info  *r;
long                    relocation;
char                    *addr;
{
        register unsigned long  mask;
        register unsigned long  shift;

        switch (r->r_type) {
        case RELOC_32:
                mask = 0xffffffff;
                shift = 0;
                break;
        case RELOC_RELATIVE:
                mask = 0x003fffff;
                shift = 10;
                break;
        }
        relocation += (*(long *)addr & mask) << shift;
        relocation >>= shift;
        relocation &= mask;

        *(long *) (addr) &= ~mask;
        *(long *) (addr) |= relocation;
}