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riscv: tools: Handle addend to absolute reloc in prelink-riscv
Previously the handling of R_RISCV_32 and R_RISCV_64 would simply insert the value of the symbol and ignore any addend. However, there exist relocs where the addend is non-zero: 0000000080250900 R_RISCV_64 efi_runtime_services+0x0000000000000068 0000000080250910 R_RISCV_64 efi_runtime_services+0x0000000000000038 0000000080250920 R_RISCV_64 efi_runtime_services+0x0000000000000018 0000000080250930 R_RISCV_64 efi_runtime_services+0x0000000000000020 0000000080250980 R_RISCV_64 efi_runtime_services+0x0000000000000048 0000000080250990 R_RISCV_64 efi_runtime_services+0x0000000000000050 00000000802509a0 R_RISCV_64 efi_runtime_services+0x0000000000000058 0000000080250940 R_RISCV_64 systab+0x0000000000000030 0000000080250950 R_RISCV_64 systab+0x0000000000000040 0000000080250960 R_RISCV_64 systab+0x0000000000000050 0000000080250970 R_RISCV_64 systab+0x0000000000000060 In these cases the addend needs to be added to the symbol value to get the correct value for the reloc. Signed-off-by: Marcus Comstedt <marcus@mc.pp.se> Cc: Rick Chen <rick@andestech.com>
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commit
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1 changed files with 6 additions and 2 deletions
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@ -27,6 +27,8 @@
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#define target32_to_cpu CONCAT(PRELINK_BYTEORDER, 32_to_cpu)
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#define target64_to_cpu CONCAT(PRELINK_BYTEORDER, 64_to_cpu)
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#define targetnn_to_cpu CONCAT3(PRELINK_BYTEORDER, PRELINK_INC_BITS, _to_cpu)
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#define cpu_to_target32 CONCAT3(cpu_to_, PRELINK_BYTEORDER, 32)
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#define cpu_to_target64 CONCAT3(cpu_to_, PRELINK_BYTEORDER, 64)
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static void* get_offset_bonn (void* data, Elf_Phdr* phdrs, size_t phnum, Elf_Addr addr)
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{
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@ -92,9 +94,9 @@ static void prelink_bonn(void *data)
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if (ELF_R_TYPE(targetnn_to_cpu(r->r_info)) == R_RISCV_RELATIVE)
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*((uintnn_t*) buf) = r->r_addend;
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else if (ELF_R_TYPE(targetnn_to_cpu(r->r_info)) == R_RISCV_32)
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*((uint32_t*) buf) = dynsym[ELF_R_SYM(targetnn_to_cpu(r->r_info))].st_value;
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*((uint32_t*) buf) = cpu_to_target32(targetnn_to_cpu(dynsym[ELF_R_SYM(targetnn_to_cpu(r->r_info))].st_value) + targetnn_to_cpu(r->r_addend));
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else if (ELF_R_TYPE(targetnn_to_cpu(r->r_info)) == R_RISCV_64)
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*((uint64_t*) buf) = dynsym[ELF_R_SYM(targetnn_to_cpu(r->r_info))].st_value;
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*((uint64_t*) buf) = cpu_to_target64(targetnn_to_cpu(dynsym[ELF_R_SYM(targetnn_to_cpu(r->r_info))].st_value) + targetnn_to_cpu(r->r_addend));
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}
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}
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@ -113,6 +115,8 @@ static void prelink_bonn(void *data)
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#undef target32_to_cpu
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#undef target64_to_cpu
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#undef targetnn_to_cpu
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#undef cpu_to_target32
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#undef cpu_to_target64
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#undef CONCAT_IMPL
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#undef CONCAT
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