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ELF: Refactored LoadInto(..) to use memcpy, removed unnecessary code.

This commit is contained in:
bunnei 2014-06-19 17:52:15 -04:00
parent 62b444cd17
commit cedc28dcc6
1 changed files with 8 additions and 19 deletions
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27
src/core/loader/elf.cpp
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@ -265,35 +265,24 @@ bool ElfReader::LoadInto(u32 vaddr) {
} else {
DEBUG_LOG(MASTER_LOG, "Prerelocated executable");
}
INFO_LOG(MASTER_LOG, "%i segments:", header->e_phnum);
// First pass : Get the bits into RAM
u32 segmentVAddr[32];
u32 baseAddress = relocate ? vaddr : 0;
u32 segment_addr[32];
u32 base_addr = relocate ? vaddr : 0;
for (int i = 0; i < header->e_phnum; i++) {
Elf32_Phdr *p = segments + i;
INFO_LOG(MASTER_LOG, "Type: %i Vaddr: %08x Filesz: %i Memsz: %i ", p->p_type, p->p_vaddr, p->p_filesz, p->p_memsz);
INFO_LOG(MASTER_LOG, "Type: %i Vaddr: %08x Filesz: %i Memsz: %i ", p->p_type, p->p_vaddr,
p->p_filesz, p->p_memsz);
if (p->p_type == PT_LOAD) {
segmentVAddr[i] = baseAddress + p->p_vaddr;
u32 writeAddr = segmentVAddr[i];
const u8 *src = GetSegmentPtr(i);
u8 *dst = Memory::GetPointer(writeAddr);
u32 srcSize = p->p_filesz;
u32 dstSize = p->p_memsz;
u32 *s = (u32*)src;
u32 *d = (u32*)dst;
for (int j = 0; j < (int)(srcSize + 3) / 4; j++) {
*d++ = (*s++);
}
INFO_LOG(MASTER_LOG, "Loadable Segment Copied to %08x, size %08x", writeAddr, p->p_memsz);
segment_addr[i] = base_addr + p->p_vaddr;
memcpy(Memory::GetPointer(segment_addr[i]), GetSegmentPtr(i), p->p_filesz);
INFO_LOG(MASTER_LOG, "Loadable Segment Copied to %08x, size %08x", segment_addr[i],
p->p_memsz);
}
}
INFO_LOG(MASTER_LOG, "Done loading.");
return true;
}