1 // SPDX-License-Identifier: GPL-2.0
5 int arch_kexec_do_relocs(int r_type, void *loc, unsigned long val,
11 case R_390_8: /* Direct 8 bit. */
14 case R_390_12: /* Direct 12 bit. */
15 *(u16 *)loc &= 0xf000;
16 *(u16 *)loc |= val & 0xfff;
18 case R_390_16: /* Direct 16 bit. */
21 case R_390_20: /* Direct 20 bit. */
22 *(u32 *)loc &= 0xf00000ff;
23 *(u32 *)loc |= (val & 0xfff) << 16; /* DL */
24 *(u32 *)loc |= (val & 0xff000) >> 4; /* DH */
26 case R_390_32: /* Direct 32 bit. */
29 case R_390_64: /* Direct 64 bit. */
33 case R_390_PC16: /* PC relative 16 bit. */
34 *(u16 *)loc = (val - addr);
36 case R_390_PC16DBL: /* PC relative 16 bit shifted by 1. */
37 *(u16 *)loc = (val - addr) >> 1;
39 case R_390_PC32DBL: /* PC relative 32 bit shifted by 1. */
40 *(u32 *)loc = (val - addr) >> 1;
42 case R_390_PC32: /* PC relative 32 bit. */
43 *(u32 *)loc = (val - addr);
45 case R_390_PC64: /* PC relative 64 bit. */
46 *(u64 *)loc = (val - addr);
49 *(unsigned long *) loc = val;