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40 lines
1.0 KiB
C++
40 lines
1.0 KiB
C++
#include "chibild.h"
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using namespace llvm::ELF;
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OutputEhdr *out::ehdr;
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OutputShdr *out::shdr;
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OutputPhdr *out::phdr;
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void OutputEhdr::relocate(uint8_t *buf) {
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auto *hdr = (ELF64LE::Ehdr *)buf;
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memcpy(&hdr->e_ident, "\177ELF", 4);
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hdr->e_ident[EI_CLASS] = ELFCLASS64;
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hdr->e_ident[EI_DATA] = ELFDATA2LSB;
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hdr->e_ident[EI_VERSION] = EV_CURRENT;
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hdr->e_ident[EI_OSABI] = 0;
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hdr->e_ident[EI_ABIVERSION] = 0;
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hdr->e_machine = EM_X86_64;
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hdr->e_version = EV_CURRENT;
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hdr->e_entry = 0;
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hdr->e_phoff = out::phdr->get_offset();
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hdr->e_shoff = out::shdr->get_offset();
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hdr->e_flags = 0;
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hdr->e_ehsize = sizeof(ELF64LE::Ehdr);
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hdr->e_phentsize = sizeof(ELF64LE::Phdr);
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hdr->e_phnum = out::phdr->hdr.size();
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hdr->e_shentsize = sizeof(ELF64LE::Shdr);
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hdr->e_shnum = out::shdr->hdr.size();
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hdr->e_shstrndx = 0;
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}
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void OutputSection::set_offset(uint64_t off) {
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offset = off;
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for (InputSection *sec : sections) {
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sec->offset = off;
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off += sec->get_size();
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}
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size = off - offset;
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}
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