mirror of
https://github.com/brain-hackers/u-boot-brain
synced 2024-07-13 14:46:21 +09:00
83d290c56f
When U-Boot started using SPDX tags we were among the early adopters and there weren't a lot of other examples to borrow from. So we picked the area of the file that usually had a full license text and replaced it with an appropriate SPDX-License-Identifier: entry. Since then, the Linux Kernel has adopted SPDX tags and they place it as the very first line in a file (except where shebangs are used, then it's second line) and with slightly different comment styles than us. In part due to community overlap, in part due to better tag visibility and in part for other minor reasons, switch over to that style. This commit changes all instances where we have a single declared license in the tag as both the before and after are identical in tag contents. There's also a few places where I found we did not have a tag and have introduced one. Signed-off-by: Tom Rini <trini@konsulko.com>
66 lines
1.3 KiB
C
66 lines
1.3 KiB
C
// SPDX-License-Identifier: BSD-3-Clause
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/*
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* reloc_arm.c - position-independent ARM ELF shared object relocator
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*
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* Copyright (C) 2014 Linaro Ltd. <ard.biesheuvel@linaro.org>
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* Copyright (C) 1999 Hewlett-Packard Co.
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* Contributed by David Mosberger <davidm@hpl.hp.com>.
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*
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* All rights reserved.
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*
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* This file is taken and modified from the gnu-efi project.
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*/
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#include <efi.h>
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#include <elf.h>
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efi_status_t _relocate(long ldbase, Elf32_Dyn *dyn, efi_handle_t image,
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struct efi_system_table *systab)
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{
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long relsz = 0, relent = 0;
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Elf32_Rel *rel = 0;
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ulong *addr;
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int i;
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for (i = 0; dyn[i].d_tag != DT_NULL; ++i) {
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switch (dyn[i].d_tag) {
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case DT_REL:
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rel = (Elf32_Rel *)((ulong)dyn[i].d_un.d_ptr
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+ ldbase);
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break;
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case DT_RELSZ:
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relsz = dyn[i].d_un.d_val;
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break;
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case DT_RELENT:
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relent = dyn[i].d_un.d_val;
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break;
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default:
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break;
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}
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}
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if (!rel && relent == 0)
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return EFI_SUCCESS;
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if (!rel || relent == 0)
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return EFI_LOAD_ERROR;
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while (relsz > 0) {
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/* apply the relocs */
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switch (ELF32_R_TYPE(rel->r_info)) {
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case R_ARM_NONE:
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break;
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case R_ARM_RELATIVE:
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addr = (ulong *)(ldbase + rel->r_offset);
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*addr += ldbase;
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break;
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default:
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break;
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}
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rel = (Elf32_Rel *)((char *)rel + relent);
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relsz -= relent;
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}
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return EFI_SUCCESS;
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}
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