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cleanup pass over elf parsing; base addr calculation?

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This commit is contained in:
Ryan Fleury
2025-07-28 16:13:45 -07:00
parent 09f9cc25df
commit 48f5df2523
10 changed files with 273 additions and 274 deletions
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src/elf/elf_parse.h
+33 -17
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@@ -5,32 +5,48 @@
#define ELF_PARSE_H
////////////////////////////////
//~ rjf: Parsed Structure Types
typedef struct ELF_BinInfo
typedef struct ELF_Shdr64Array ELF_Shdr64Array;
struct ELF_Shdr64Array
{
ELF_Shdr64 *v;
U64 count;
};
typedef struct ELF_Phdr64Array ELF_Phdr64Array;
struct ELF_Phdr64Array
{
ELF_Phdr64 *v;
U64 count;
};
typedef struct ELF_Bin ELF_Bin;
struct ELF_Bin
{
ELF_Hdr64 hdr;
Rng1U64 sh_name_range;
} ELF_BinInfo;
Rng1U64 sh_name_range;
ELF_Shdr64Array shdrs;
ELF_Phdr64Array phdrs;
};
typedef struct ELF_Shdr64Array
{
U64 count;
ELF_Shdr64 *v;
} ELF_Shdr64Array;
typedef struct ELF_GnuDebugLink
typedef struct ELF_GnuDebugLink ELF_GnuDebugLink;
struct ELF_GnuDebugLink
{
String8 path;
U32 checksum;
} ELF_GnuDebugLink;
U32 checksum;
};
////////////////////////////////
//~ rjf: Parsing Functions
internal B32 elf_check_magic(String8 data);
internal ELF_BinInfo elf_bin_from_data(String8 data);
//- rjf: top-level binary parsing
internal ELF_Bin elf_bin_from_data(Arena *arena, String8 data);
internal ELF_Shdr64Array elf_shdr64_array_from_bin(Arena *arena, String8 raw_data, ELF_Hdr64 *hdr);
internal String8 elf_name_from_shdr64(String8 raw_data, ELF_Hdr64 *hdr, Rng1U64 sh_name_range, ELF_Shdr64 *shdr);
internal U64 elf_base_addr_from_bin(ELF_Hdr64 *hdr);
//- rjf: extra bin info extraction
internal B32 elf_is_dwarf_present_from_bin(String8 data, ELF_Bin *bin);
internal String8 elf_name_from_shdr64(String8 raw_data, ELF_Bin *bin, ELF_Shdr64 *shdr);
internal U64 elf_base_addr_from_bin(ELF_Bin *bin);
internal ELF_GnuDebugLink elf_gnu_debug_link_from_bin(String8 raw_data, ELF_Bin *bin);
#endif // ELF_PARSE_H