61 lines
1.9 KiB
C
61 lines
1.9 KiB
C
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/*
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* Copyright (c) 2006-2021, RT-Thread Development Team
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*
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* SPDX-License-Identifier: Apache-2.0
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*
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* Change Logs:
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* Date Author Notes
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* 2021/04/23 chunyexixiaoyu first version
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*/
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#include "../dlmodule.h"
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#include "../dlelf.h"
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#if (__riscv_xlen == 64)
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#define R_RISCV_NONE 0
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#define R_RISCV_32 1
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#define R_RISCV_64 2
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#define R_RISCV_RELATIVE 3
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#define R_RISCV_COPY 4
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#define R_RISCV_JUMP_SLOT 5
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#define R_RISCV_TLS_DTPMOD32 6
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#define R_RISCV_TLS_DTPMOD64 7
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#define R_RISCV_TLS_DTPREL32 8
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#define R_RISCV_TLS_DTPREL64 9
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#define R_RISCV_TLS_TPREL32 10
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#define R_RISCV_TLS_TPREL64 11
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int dlmodule_relocate(struct rt_dlmodule *module, Elf_Rel *rel, Elf_Addr sym_val)
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{
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Elf64_Addr *where, tmp;
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Elf64_Sword addend, offset;
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rt_uint64_t upper, lower, sign, j1, j2;
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where = (Elf64_Addr *)((rt_uint8_t *)module->mem_space
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+ rel->r_offset
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- module->vstart_addr);
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switch (ELF64_R_TYPE(rel->r_info))
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{
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case R_RISCV_NONE:
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break;
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case R_RISCV_64:
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*where = (Elf64_Addr)(sym_val + rel->r_addend);
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RT_DEBUG_LOG(RT_DEBUG_MODULE, ("R_RISCV_64: %x -> %x\n",where, *where));
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break;
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case R_RISCV_RELATIVE:
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*where = (Elf64_Addr)((rt_uint8_t *)module->mem_space - module->vstart_addr + rel->r_addend);
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RT_DEBUG_LOG(RT_DEBUG_MODULE, ("R_RISCV_RELATIVE: %x -> %x\n",where, *where));
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break;
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case R_RISCV_JUMP_SLOT:
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*where = (Elf64_Addr)sym_val;
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RT_DEBUG_LOG(RT_DEBUG_MODULE, ("R_RISCV_JUMP_SLOT: %x -> %x\n",where, *where));
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break;
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default:
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RT_DEBUG_LOG(RT_DEBUG_MODULE, ("__riscv__ELF: invalid relocate TYPE %d\n", ELF64_R_TYPE(rel->r_info)));
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return -1;
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}
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return 0;
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}
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#endif
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