NetBSD/libexec/ld.aout_so/arch/sparc/md-static-funcs.c

39 lines
844 B
C

/* $NetBSD: md-static-funcs.c,v 1.4 1998/12/15 21:23:57 pk Exp $ */
/*
* 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;
{
unsigned long mask;
unsigned long shift;
switch (r->r_type) {
case RELOC_32:
mask = 0xffffffff;
shift = 0;
break;
case RELOC_RELATIVE:
mask = 0x003fffff;
shift = 10;
break;
default:
return;
}
relocation += (*(long *)addr & mask) << shift;
relocation >>= shift;
relocation &= mask;
*(long *) (addr) &= ~mask;
*(long *) (addr) |= relocation;
}