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Merge pull request #10280 from ziglang/zld-rel-code-path

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macho: add preliminary non-prealloc path to the linker
This commit is contained in:
Jakub Konka
2021-12-06 09:52:09 +01:00
committed by GitHub
parent 2af94e76a3 71d19318e7
commit 933999dad1
3 changed files with 726 additions and 232 deletions
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951
src/link/MachO.zig
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3
src/link/MachO/Atom.zig
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@@ -344,7 +344,8 @@ pub fn parseRelocs(self: *Atom, relocs: []macho.relocation_info, context: RelocC
const local_sym_index = context.object.sections_as_symbols.get(sect_id) orelse blk: {
const seg = context.object.load_commands.items[context.object.segment_cmd_index.?].Segment;
const sect = seg.sections.items[sect_id];
const match = (try context.macho_file.getMatchingSection(sect)) orelse unreachable;
const match = (try context.macho_file.getMatchingSection(sect)) orelse
unreachable;
const local_sym_index = @intCast(u32, context.macho_file.locals.items.len);
try context.macho_file.locals.append(context.allocator, .{
.n_strx = 0,

4
src/link/MachO/Object.zig
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@@ -474,7 +474,9 @@ pub fn parseIntoAtoms(self: *Object, allocator: Allocator, macho_file: *MachO) !
try self.sections_as_symbols.putNoClobber(allocator, sect_id, atom_local_sym_index);
break :blk atom_local_sym_index;
};
const atom = try macho_file.createEmptyAtom(atom_local_sym_index, sect.size, sect.@"align");
const alignment = try math.powi(u32, 2, sect.@"align");
const aligned_size = mem.alignForwardGeneric(u64, sect.size, alignment);
const atom = try macho_file.createEmptyAtom(atom_local_sym_index, aligned_size, sect.@"align");
const is_zerofill = blk: {
const section_type = commands.sectionType(sect);