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[Mach-O] wip

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This commit is contained in:
Rui Ueyama 2021-09-21 14:53:38 +09:00
parent a52179d090
commit 02ce171aba
2 changed files with 27 additions and 40 deletions
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58
macho/main.cc
View File

@ -11,46 +11,32 @@
namespace mold::macho {
static void create_synthetic_sections(Context &ctx) {
OutputSegment *text =
new OutputSegment("__TEXT", VM_PROT_READ | VM_PROT_EXECUTE, 0);
ctx.segments.push_back(text);
ctx.text_seg.reset(text);
ctx.segments.push_back(&ctx.text_seg);
ctx.segments.push_back(&ctx.data_const_seg);
ctx.segments.push_back(&ctx.data_seg);
ctx.segments.push_back(&ctx.linkedit_seg);
OutputSegment *data_const =
new OutputSegment("__DATA_CONST", VM_PROT_READ | VM_PROT_WRITE, SG_READ_ONLY);
ctx.segments.push_back(data_const);
ctx.data_const_seg.reset(data_const);
ctx.text_seg.sections.push_back(&ctx.mach_hdr);
ctx.text_seg.sections.push_back(&ctx.load_cmd);
ctx.text_seg.sections.push_back(new TextSection);
ctx.text_seg.sections.push_back(new StubsSection);
ctx.text_seg.sections.push_back(new StubHelperSection);
ctx.text_seg.sections.push_back(new CstringSection);
ctx.text_seg.sections.push_back(new UnwindInfoSection);
OutputSegment *data =
new OutputSegment("__DATA", VM_PROT_READ | VM_PROT_WRITE, 0);
ctx.segments.push_back(data);
ctx.data_seg.reset(data);
ctx.data_const_seg.sections.push_back(new GotSection);
OutputSegment *linkedit = new OutputSegment("__LINKEDIT", VM_PROT_READ, 0);
ctx.segments.push_back(linkedit);
ctx.linkedit_seg.reset(linkedit);
ctx.data_seg.sections.push_back(new LazySymbolPtrSection);
ctx.data_seg.sections.push_back(new DataSection);
ctx.text_seg->sections.push_back(&ctx.mach_hdr);
ctx.text_seg->sections.push_back(&ctx.load_cmd);
ctx.text_seg->sections.push_back(new TextSection);
ctx.text_seg->sections.push_back(new StubsSection);
ctx.text_seg->sections.push_back(new StubHelperSection);
ctx.text_seg->sections.push_back(new CstringSection);
ctx.text_seg->sections.push_back(new UnwindInfoSection);
ctx.data_const_seg->sections.push_back(new GotSection);
ctx.data_seg->sections.push_back(new LazySymbolPtrSection);
ctx.data_seg->sections.push_back(new DataSection);
ctx.linkedit_seg->sections.push_back(&ctx.rebase);
ctx.linkedit_seg->sections.push_back(&ctx.bind);
ctx.linkedit_seg->sections.push_back(&ctx.lazy_bind);
ctx.linkedit_seg->sections.push_back(&ctx.export_);
ctx.linkedit_seg->sections.push_back(&ctx.function_starts);
ctx.linkedit_seg->sections.push_back(&ctx.symtab);
ctx.linkedit_seg->sections.push_back(&ctx.indir_symtab);
ctx.linkedit_seg->sections.push_back(&ctx.strtab);
ctx.linkedit_seg.sections.push_back(&ctx.rebase);
ctx.linkedit_seg.sections.push_back(&ctx.bind);
ctx.linkedit_seg.sections.push_back(&ctx.lazy_bind);
ctx.linkedit_seg.sections.push_back(&ctx.export_);
ctx.linkedit_seg.sections.push_back(&ctx.function_starts);
ctx.linkedit_seg.sections.push_back(&ctx.symtab);
ctx.linkedit_seg.sections.push_back(&ctx.indir_symtab);
ctx.linkedit_seg.sections.push_back(&ctx.strtab);
}
static void fill_symtab(Context &ctx) {

9
macho/mold.h
View File

@ -346,10 +346,11 @@ struct Context {
std::unique_ptr<OutputFile> output_file;
u8 *buf;
std::unique_ptr<OutputSegment> text_seg;
std::unique_ptr<OutputSegment> data_const_seg;
std::unique_ptr<OutputSegment> data_seg;
std::unique_ptr<OutputSegment> linkedit_seg;
OutputSegment text_seg{"__TEXT", VM_PROT_READ | VM_PROT_EXECUTE, 0};
OutputSegment data_const_seg{"__DATA_CONST", VM_PROT_READ | VM_PROT_WRITE,
SG_READ_ONLY};
OutputSegment data_seg{"__DATA", VM_PROT_READ | VM_PROT_WRITE, 0};
OutputSegment linkedit_seg{"__LINKEDIT", VM_PROT_READ, 0};
OutputMachHeader mach_hdr;
OutputLoadCommand load_cmd;