90 lines
1.6 KiB
C
90 lines
1.6 KiB
C
/* Copyright (c) 2024 Freya Murphy */
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#ifndef __ELF32_H__
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#define __ELF32_H__
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#include <elf.h>
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#include "../gen.h"
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#include "../masm.h"
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///
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/// ELF string table
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///
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struct elf_str_table {
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// size of the ptr in bytes
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size_t size;
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// pointer that contains
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// the strings
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char *ptr;
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};
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/* initalize a string table */
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int strtab_init(struct elf_str_table *strtab);
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/* free a string table */
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void strtab_free(struct elf_str_table *strtab);
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/* get a string form the string table */
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int strtab_get_str(struct elf_str_table *strtab, const char *str, size_t *res);
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/* get or append a string into the string table */
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int strtab_write_str(struct elf_str_table *strtab, const char *str, size_t *res);
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///
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/// elf section
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///
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/* holds a section of the asm file (i.e. .text, .bss, .data) */
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struct elf_section {
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// section data *weak* pointer
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struct section *data;
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// index of the section in
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// the ELF shdr
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size_t shdr_idx;
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// relocation table
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size_t reltab_shidx;
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uint32_t reltab_len;
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Elf32_Rel *reltab;
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};
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///
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/// assembler
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///
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struct elf_assembler {
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// arguments passed in
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struct arguments *args;
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// the code generator
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struct generator *gen;
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/// symbol table
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size_t symtab_shidx;
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size_t symtab_len;
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Elf32_Sym *symbols;
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// sh string table
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size_t strtab_shidx;
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struct elf_str_table strtab;
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// string table
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size_t shstrtab_shidx;
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struct elf_str_table shstrtab;
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/// sections
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uint32_t section_len;
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struct elf_section *sections;
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/// section header
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Elf32_Shdr *shdr;
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uint32_t shdr_len;
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};
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int assemble_elf32(struct generator *gen, struct arguments *args);
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#endif /* __ELF32_H__ */
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