mirror of
https://source.denx.de/u-boot/u-boot.git
synced 2025-11-04 02:11:25 +01:00
b966e5dc54
EFI image handle and system table are not used in _relocate(). Signed-off-by: Ivan Gorinov <ivan.gorinov@intel.com>
65 lines
1.2 KiB
C
65 lines
1.2 KiB
C
// SPDX-License-Identifier: BSD-3-Clause
|
|
/*
|
|
* reloc_arm.c - position-independent ARM ELF shared object relocator
|
|
*
|
|
* Copyright (C) 2014 Linaro Ltd. <ard.biesheuvel@linaro.org>
|
|
* Copyright (C) 1999 Hewlett-Packard Co.
|
|
* Contributed by David Mosberger <davidm@hpl.hp.com>.
|
|
*
|
|
* All rights reserved.
|
|
*
|
|
* This file is taken and modified from the gnu-efi project.
|
|
*/
|
|
|
|
#include <efi.h>
|
|
#include <elf.h>
|
|
|
|
efi_status_t EFIAPI _relocate(long ldbase, Elf32_Dyn *dyn)
|
|
{
|
|
long relsz = 0, relent = 0;
|
|
Elf32_Rel *rel = 0;
|
|
ulong *addr;
|
|
int i;
|
|
|
|
for (i = 0; dyn[i].d_tag != DT_NULL; ++i) {
|
|
switch (dyn[i].d_tag) {
|
|
case DT_REL:
|
|
rel = (Elf32_Rel *)((ulong)dyn[i].d_un.d_ptr
|
|
+ ldbase);
|
|
break;
|
|
case DT_RELSZ:
|
|
relsz = dyn[i].d_un.d_val;
|
|
break;
|
|
case DT_RELENT:
|
|
relent = dyn[i].d_un.d_val;
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (!rel && relent == 0)
|
|
return EFI_SUCCESS;
|
|
|
|
if (!rel || relent == 0)
|
|
return EFI_LOAD_ERROR;
|
|
|
|
while (relsz > 0) {
|
|
/* apply the relocs */
|
|
switch (ELF32_R_TYPE(rel->r_info)) {
|
|
case R_ARM_NONE:
|
|
break;
|
|
case R_ARM_RELATIVE:
|
|
addr = (ulong *)(ldbase + rel->r_offset);
|
|
*addr += ldbase;
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
rel = (Elf32_Rel *)((char *)rel + relent);
|
|
relsz -= relent;
|
|
}
|
|
|
|
return EFI_SUCCESS;
|
|
}
|