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load and print program and section headers

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This commit is contained in:
georgemoralis 2023-04-08 13:40:32 +03:00
parent 56616f832e
commit 6e28e369da
2 changed files with 46 additions and 0 deletions
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44
emulator/Loader/Elf.cpp
View file

@ -69,10 +69,14 @@ void Elf::Reset()//reset all variables
delete m_self;
delete m_elf_header;
delete[] m_self_segments;
delete[] m_elf_phdr;
delete[] m_elf_shdr;
m_self = nullptr;
m_self_segments = nullptr;
m_elf_header = nullptr;
m_elf_phdr = nullptr;
m_elf_shdr = nullptr;
}
void Elf::Open(const std::string& file_name)
{
@ -104,6 +108,11 @@ void Elf::Open(const std::string& file_name)
m_elf_header = nullptr;
}
if (m_elf_header != nullptr)
{
m_elf_phdr = load_program_header(*m_f, elfheader_pos + m_elf_header->e_phoff, m_elf_header->e_phnum);
m_elf_shdr = load_section_header(*m_f, elfheader_pos + m_elf_header->e_shoff, m_elf_header->e_shnum);
}
DebugDump();
}
@ -274,4 +283,39 @@ void Elf::DebugDump() {
printf(" shentsize .....: 0x%04" PRIx16 "\n", m_elf_header->e_shentsize);
printf(" shnum .........: %" PRIu16 "\n", m_elf_header->e_shnum);
printf(" shstrndx ......: %" PRIu16 "\n", m_elf_header->e_shstrndx);
if (m_elf_header->e_phentsize > 0)
{
printf("Program headers:\n");
for (u16 i = 0; i < m_elf_header->e_phnum; i++)
{
printf("--- phdr [%d] ---\n", i);
printf("p_type ....: 0x%08" PRIx32 "\n", (m_elf_phdr+i)->p_type);
printf("p_flags ...: 0x%08" PRIx32 "\n", (m_elf_phdr + i)->p_flags);
printf("p_offset ..: 0x%016" PRIx64 "\n", (m_elf_phdr + i)->p_offset);
printf("p_vaddr ...: 0x%016" PRIx64 "\n", (m_elf_phdr + i)->p_vaddr);
printf("p_paddr ...: 0x%016" PRIx64 "\n", (m_elf_phdr + i)->p_paddr);
printf("p_filesz ..: 0x%016" PRIx64 "\n", (m_elf_phdr + i)->p_filesz);
printf("p_memsz ...: 0x%016" PRIx64 "\n", (m_elf_phdr + i)->p_memsz);
printf("p_align ...: 0x%016" PRIx64 "\n", (m_elf_phdr + i)->p_align);
}
}
if (m_elf_header->e_shentsize > 0)
{
printf("Section headers:\n");
for (uint16_t i = 0; i < m_elf_header->e_shnum; i++)
{
printf("--- shdr [%d] --\n", i);
printf("sh_name ........: %d\n", (m_elf_shdr + i)->sh_name);
printf("sh_type ........: 0x%08" PRIx32 "\n", (m_elf_shdr + i)->sh_type);
printf("sh_flags .......: 0x%016" PRIx64 "\n", (m_elf_shdr + i)->sh_flags);
printf("sh_addr ........: 0x%016" PRIx64 "\n", (m_elf_shdr + i)->sh_addr);
printf("sh_offset ......: 0x%016" PRIx64 "\n", (m_elf_shdr + i)->sh_offset);
printf("sh_size ........: 0x%016" PRIx64 "\n", (m_elf_shdr + i)->sh_size);
printf("sh_link ........: %" PRId32 "\n", (m_elf_shdr + i)->sh_link);
printf("sh_info ........: 0x%08" PRIx32 "\n", (m_elf_shdr + i)->sh_info);
printf("sh_addralign ...: 0x%016" PRIx64 "\n", (m_elf_shdr + i)->sh_addralign);
printf("sh_entsize .....: 0x%016" PRIx64 "\n", (m_elf_shdr + i)->sh_entsize);
}
}
}

2
emulator/Loader/Elf.h
View file

@ -126,5 +126,7 @@ private:
self_header* m_self = nullptr;
self_segment_header* m_self_segments = nullptr;
elf_header* m_elf_header = nullptr;
elf_program_header* m_elf_phdr = nullptr;
elf_section_header* m_elf_shdr = nullptr;
};