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macho: init InternalObject and add forced undefined globals

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This commit is contained in:
Jakub Konka 2024-01-11 18:30:22 +01:00
parent 8c7a34ae68
commit b8f67d7985
1 changed files with 45 additions and 0 deletions
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45
src/link/MachO.zig
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@ -48,6 +48,14 @@ eh_frame_sect_index: ?u8 = null,
unwind_info_sect_index: ?u8 = null,
objc_stubs_sect_index: ?u8 = null,
mh_execute_header_index: ?Symbol.Index = null,
mh_dylib_header_index: ?Symbol.Index = null,
dyld_private_index: ?Symbol.Index = null,
dyld_stub_binder_index: ?Symbol.Index = null,
dso_handle_index: ?Symbol.Index = null,
objc_msg_send_index: ?Symbol.Index = null,
entry_index: ?Symbol.Index = null,
/// List of atoms that are either synthetic or map directly to the Zig source program.
atoms: std.ArrayListUnmanaged(Atom) = .{},
thunks: std.ArrayListUnmanaged(Thunk) = .{},
@ -482,6 +490,14 @@ pub fn flushModule(self: *MachO, arena: Allocator, prog_node: *std.Progress.Node
try dylib.initSymbols(self);
}
{
const index = @as(File.Index, @intCast(try self.files.addOne(gpa)));
self.files.set(index, .{ .internal = .{ .index = index } });
self.internal_object = index;
}
try self.addUndefinedGlobals();
state_log.debug("{}", .{self.dumpState()});
@panic("TODO");
@ -1112,6 +1128,35 @@ fn parseTbd(self: *MachO, lib: SystemLib, explicit: bool) ParseError!File.Index
// }
// }
fn addUndefinedGlobals(self: *MachO) !void {
const gpa = self.base.comp.gpa;
try self.undefined_symbols.ensureUnusedCapacity(gpa, self.base.comp.force_undefined_symbols.keys().len);
for (self.base.comp.force_undefined_symbols.keys()) |name| {
const off = try self.strings.insert(gpa, name);
const gop = try self.getOrCreateGlobal(off);
self.undefined_symbols.appendAssumeCapacity(gop.index);
}
if (!self.base.isDynLib() and self.entry_name != null) {
const off = try self.strings.insert(gpa, self.entry_name.?);
const gop = try self.getOrCreateGlobal(off);
self.entry_index = gop.index;
}
{
const off = try self.strings.insert(gpa, "dyld_stub_binder");
const gop = try self.getOrCreateGlobal(off);
self.dyld_stub_binder_index = gop.index;
}
{
const off = try self.strings.insert(gpa, "_objc_msgSend");
const gop = try self.getOrCreateGlobal(off);
self.objc_msg_send_index = gop.index;
}
}
fn shrinkAtom(self: *MachO, atom_index: Atom.Index, new_block_size: u64) void {
_ = self;
_ = atom_index;