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Merge pull request #6 from shinyquagsire23/imports-sigs

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Add SHT_RPL_IMPORT signatures to elf2rpl
This commit is contained in:
James 2016-07-14 22:34:23 +01:00 committed by GitHub
commit 4aa7a245bd
1 changed files with 18 additions and 1 deletions
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19
tools/elf2rpl/main.cpp
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@ -620,7 +620,7 @@ write(ElfFile &file, const std::string &filename)
// Setup data
auto imports = reinterpret_cast<elf::RplImport*>(out->data.data());
imports->count = lib->imports.size();
imports->signature = 0; // TODO: SHT_RPL_IMPORTS Signature
imports->signature = crc32(0, Z_NULL, 0);
memcpy(imports->name, lib->name.data(), lib->name.size());
imports->name[lib->name.size()] = 0;
@ -773,11 +773,28 @@ write(ElfFile &file, const std::string &filename)
sym.other = 0;
sym.shndx = shndx;
//Compound symbol crc into section crc
auto crcSection = outSections[shndx];
if(crcSection->header.type == elf::SHT_RPL_IMPORTS && symbol->type != elf::STT_SECTION) {
auto rplImport = reinterpret_cast<elf::RplImport*>(crcSection->data.data());
rplImport->signature = crc32(rplImport->signature, reinterpret_cast<Bytef *>(strTabSection->data.data() + sym.name),strlen(strTabSection->data.data() + sym.name)+1);
}
// Append to symtab data
char *symData = reinterpret_cast<char *>(&sym);
symTabSection->data.insert(symTabSection->data.end(), symData, symData + sizeof(elf::Symbol));
}
//Finish SHT_RPL_IMPORTS signatures
Bytef *zero_buffer = reinterpret_cast<Bytef *>(calloc(0x10, 1));
for (auto &section : outSections) {
if(section->header.type == elf::SHT_RPL_IMPORTS) {
auto rplImport = reinterpret_cast<elf::RplImport*>(section->data.data());
rplImport->signature = crc32(rplImport->signature, zero_buffer, 0xE);
}
}
free(zero_buffer);
// Create .shstrtab
shStrTabSection->header.name = 0;
shStrTabSection->header.type = elf::SHT_STRTAB;