1 // SPDX-License-Identifier: GPL-2.0
4 int arch_kexec_do_relocs(int r_type, void *loc, unsigned long val,
10 case R_390_8: /* Direct 8 bit. */
13 case R_390_12: /* Direct 12 bit. */
14 *(u16 *)loc &= 0xf000;
15 *(u16 *)loc |= val & 0xfff;
17 case R_390_16: /* Direct 16 bit. */
20 case R_390_20: /* Direct 20 bit. */
21 *(u32 *)loc &= 0xf00000ff;
22 *(u32 *)loc |= (val & 0xfff) << 16; /* DL */
23 *(u32 *)loc |= (val & 0xff000) >> 4; /* DH */
25 case R_390_32: /* Direct 32 bit. */
28 case R_390_64: /* Direct 64 bit. */
31 case R_390_PC16: /* PC relative 16 bit. */
32 *(u16 *)loc = (val - addr);
34 case R_390_PC16DBL: /* PC relative 16 bit shifted by 1. */
35 *(u16 *)loc = (val - addr) >> 1;
37 case R_390_PC32DBL: /* PC relative 32 bit shifted by 1. */
38 *(u32 *)loc = (val - addr) >> 1;
40 case R_390_PC32: /* PC relative 32 bit. */
41 *(u32 *)loc = (val - addr);
43 case R_390_PC64: /* PC relative 64 bit. */
44 *(u64 *)loc = (val - addr);
47 *(unsigned long *) loc = val;