57 lines
1.7 KiB
C
57 lines
1.7 KiB
C
#include "Tier0/elf.h"
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#include "Tier0/kstdio.h"
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u8 elf_open(TELF *elf, void *Address, u64 Size)
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{
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elf->Address = Address;
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elf->Size = Size;
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TELFHeader *Header = (TELFHeader *)Address;
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if (Header->Identification.Magic != ELF_IDENT_MAGIC)
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{
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kprintf("ELF: bad magic (0x%x)\n", Header->Identification.Magic);
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return 1;
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}
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elf->Header = Header;
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elf->Sections = (TELFSectionHeader *)((u64)Header + (u64)Header->SectionHeaderOffset);
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elf->SectionCount = Header->NumSectionHeaderEntries;
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if (Header->SectionHeaderOffset + elf->SectionCount * sizeof(TELFSectionHeader) > elf->Size)
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{
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kprintf("ELF: invalid section count/offset.\n");
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return 1;
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}
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return 0;
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}
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s8* elf_section_get_name(TELF *elf, u64 SectionID)
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{
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u64 StringSectionID = elf->Header->SectionEntryStrings;
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TELFSectionHeader* StringSection = &elf->Sections[StringSectionID];
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TELFSectionHeader* RequestedSection = &elf->Sections[SectionID];
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return (s8*)elf->Header + StringSection->Offset + RequestedSection->Name;
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}
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u64 elf_section_get_physical_address(TELF *elf, u64 SectionID)
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{
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TELFSectionHeader* RequestedSection = &elf->Sections[SectionID];
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return (u64)elf->Header + RequestedSection->Offset;
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}
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u64 elf_section_get_virtual_address(TELF *elf, u64 SectionID)
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{
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TELFSectionHeader* RequestedSection = &elf->Sections[SectionID];
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return (u64)RequestedSection->Address;
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}
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u64 elf_section_get_size(TELF *elf, u64 SectionID)
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{
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TELFSectionHeader* RequestedSection = &elf->Sections[SectionID];
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return (u64)RequestedSection->Size;
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}
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u64 elf_section_has_bits(TELF *elf, u64 SectionID)
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{
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TELFSectionHeader* RequestedSection = &elf->Sections[SectionID];
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return !(RequestedSection->Type & SHT_NOBITS);
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} |