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macho: mark imports and exports

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This commit is contained in:
Jakub Konka 2024-01-11 19:15:54 +01:00
parent b0327ff233
commit b28ff75f5d
1 changed files with 40 additions and 0 deletions
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40
src/link/MachO.zig
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@ -505,6 +505,8 @@ pub fn flushModule(self: *MachO, arena: Allocator, prog_node: *std.Progress.Node
try dead_strip.gcAtoms(self);
}
self.markImportsAndExports();
state_log.debug("{}", .{self.dumpState()});
@panic("TODO");
@ -1345,6 +1347,44 @@ fn claimUnresolved(self: *MachO) error{OutOfMemory}!void {
}
}
fn markImportsAndExports(self: *MachO) void {
for (self.objects.items) |index| {
for (self.getFile(index).?.getSymbols()) |sym_index| {
const sym = self.getSymbol(sym_index);
const file = sym.getFile(self) orelse continue;
if (sym.visibility != .global) continue;
if (file == .dylib and !sym.flags.abs) {
sym.flags.import = true;
continue;
}
if (file.getIndex() == index) {
sym.flags.@"export" = true;
}
}
}
for (self.undefined_symbols.items) |index| {
const sym = self.getSymbol(index);
if (sym.getFile(self)) |file| {
if (sym.visibility != .global) continue;
if (file == .dylib and !sym.flags.abs) sym.flags.import = true;
}
}
for (&[_]?Symbol.Index{
self.entry_index,
self.dyld_stub_binder_index,
self.objc_msg_send_index,
}) |index| {
if (index) |idx| {
const sym = self.getSymbol(idx);
if (sym.getFile(self)) |file| {
if (file == .dylib) sym.flags.import = true;
}
}
}
}
fn shrinkAtom(self: *MachO, atom_index: Atom.Index, new_block_size: u64) void {
_ = self;
_ = atom_index;