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[yaml2obj][ELF] Factor out string table section creation.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@184162 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Sean Silva 2013-06-18 01:11:27 +00:00
parent 7dc89c1f3a
commit c60c86dcae
1 changed files with 14 additions and 11 deletions
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25
tools/yaml2obj/yaml2elf.cpp
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@ -120,6 +120,19 @@ static void zero(T &Obj) {
memset(&Obj, 0, sizeof(Obj));
}
/// \brief Create a string table in `SHeader`, which we assume is already
/// zero'd.
template <class Elf_Shdr>
static void createStringTableSectionHeader(Elf_Shdr &SHeader,
StringTableBuilder &STB,
ContiguousBlobAccumulator &CBA) {
SHeader.sh_type = ELF::SHT_STRTAB;
SHeader.sh_offset = CBA.currentOffset();
SHeader.sh_size = STB.size();
STB.writeToStream(CBA.getOS());
SHeader.sh_addralign = 1;
}
template <class ELFT>
static int writeELF(raw_ostream &OS, const ELFYAML::Object &Doc) {
using namespace llvm::ELF;
@ -220,17 +233,7 @@ static int writeELF(raw_ostream &OS, const ELFYAML::Object &Doc) {
// Section header string table header.
Elf_Shdr SHStrTabSHeader;
zero(SHStrTabSHeader);
SHStrTabSHeader.sh_name = 0;
SHStrTabSHeader.sh_type = SHT_STRTAB;
SHStrTabSHeader.sh_flags = 0;
SHStrTabSHeader.sh_addr = 0;
SHStrTabSHeader.sh_offset = CBA.currentOffset();
SHStrTabSHeader.sh_size = SHStrTab.size();
SHStrTab.writeToStream(CBA.getOS());
SHStrTabSHeader.sh_link = 0;
SHStrTabSHeader.sh_info = 0;
SHStrTabSHeader.sh_addralign = 1;
SHStrTabSHeader.sh_entsize = 0;
createStringTableSectionHeader(SHStrTabSHeader, SHStrTab, CBA);
OS.write((const char *)&Header, sizeof(Header));
writeVectorData(OS, SHeaders);