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[Mach-O] wip

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This commit is contained in:
Rui Ueyama 2021-10-27 20:53:27 +09:00
parent 0bdb744918
commit 2ec3b16ffd
2 changed files with 17 additions and 14 deletions
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29
macho/main.cc
View File

@ -33,13 +33,21 @@ static void create_internal_file(Context &ctx) {
}
static void create_synthetic_chunks(Context &ctx) {
for (ObjectFile *obj : ctx.objs)
for (std::unique_ptr<InputSection> &sec : obj->sections)
for (Subsection &subsec : sec->subsections)
sec->osec.members.push_back(&subsec);
for (ObjectFile *obj : ctx.objs) {
for (std::unique_ptr<InputSection> &isec : obj->sections) {
for (Subsection &subsec : isec->subsections)
isec->osec.members.push_back(&subsec);
isec->osec.hdr.attr |= isec->hdr.attr;
isec->osec.hdr.p2align =
std::max(isec->osec.hdr.p2align, isec->hdr.p2align);
}
}
ctx.text = OutputSection::get_instance(ctx, "__TEXT", "__text");
ctx.data = OutputSection::get_instance(ctx, "__DATA", "__data");
ctx.cstring = OutputSection::get_instance(ctx, "__TEXT", "__cstring");
ctx.cstring->hdr.type = S_CSTRING_LITERALS;
ctx.segments.push_back(&ctx.text_seg);
ctx.segments.push_back(&ctx.data_const_seg);
@ -49,19 +57,10 @@ static void create_synthetic_chunks(Context &ctx) {
ctx.text_seg.chunks.push_back(&ctx.mach_hdr);
ctx.text_seg.chunks.push_back(&ctx.load_cmd);
ctx.text_seg.chunks.push_back(&ctx.headerpad);
ctx.headerpad.hdr.size = ctx.arg.headerpad;
ctx.text->hdr.attr = S_ATTR_PURE_INSTRUCTIONS | S_ATTR_SOME_INSTRUCTIONS;
ctx.text->hdr.p2align = 4;
ctx.text_seg.chunks.push_back(ctx.text);
ctx.text_seg.chunks.push_back(&ctx.stubs);
ctx.text_seg.chunks.push_back(&ctx.stub_helper);
OutputSection *cstring = OutputSection::get_instance(ctx, "__TEXT", "__cstring");
cstring->hdr.type = S_CSTRING_LITERALS;
ctx.text_seg.chunks.push_back(cstring);
ctx.text_seg.chunks.push_back(ctx.cstring);
ctx.text_seg.chunks.push_back(&ctx.unwind_info);
ctx.data_const_seg.chunks.push_back(&ctx.got);
@ -77,6 +76,8 @@ static void create_synthetic_chunks(Context &ctx) {
ctx.linkedit_seg.chunks.push_back(&ctx.symtab);
ctx.linkedit_seg.chunks.push_back(&ctx.indir_symtab);
ctx.linkedit_seg.chunks.push_back(&ctx.strtab);
ctx.headerpad.hdr.size = ctx.arg.headerpad;
}
static void export_symbols(Context &ctx) {

2
macho/mold.h
View File

@ -634,8 +634,10 @@ struct Context {
OutputSymtabSection symtab;
OutputIndirectSymtabSection indir_symtab;
OutputStrtabSection strtab;
OutputSection *text = nullptr;
OutputSection *data = nullptr;
OutputSection *cstring = nullptr;
std::vector<OutputSegment *> segments;
};