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macho: skip parsing __eh_frame until we know how to handle it

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This commit is contained in:
Jakub Konka 2022-10-19 16:15:28 +02:00
parent baceaf65f2
commit e70adc7f1a
2 changed files with 17 additions and 2 deletions
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12
src/link/MachO/dead_strip.zig
View File

@ -104,11 +104,12 @@ fn markLive(
alive: *AtomTable,
reverse_lookups: [][]u32,
) anyerror!void {
log.debug("mark(ATOM({d}))", .{atom_index});
if (alive.contains(atom_index)) return;
alive.putAssumeCapacityNoClobber(atom_index, {});
log.debug("marking live", .{});
zld.logAtom(atom_index, log);
const cpu_arch = zld.options.target.cpu.arch;
@ -152,11 +153,15 @@ fn markLive(
const object = zld.objects.items[target.getFile().?];
const target_atom_index = object.getAtomIndexForSymbol(target.sym_index).?;
log.debug(" following ATOM({d})", .{target_atom_index});
try markLive(zld, target_atom_index, alive, reverse_lookups);
}
}
fn refersLive(zld: *Zld, atom_index: AtomIndex, alive: AtomTable, reverse_lookups: [][]u32) !bool {
log.debug("refersLive(ATOM({d}))", .{atom_index});
const cpu_arch = zld.options.target.cpu.arch;
const atom = zld.getAtom(atom_index);
@ -191,7 +196,10 @@ fn refersLive(zld: *Zld, atom_index: AtomIndex, alive: AtomTable, reverse_lookup
log.debug("atom for symbol '{s}' not found; skipping...", .{zld.getSymbolName(target)});
continue;
};
if (alive.contains(target_atom_index)) return true;
if (alive.contains(target_atom_index)) {
log.debug(" refers live ATOM({d})", .{target_atom_index});
return true;
}
}
return false;

7
src/link/MachO/zld.zig
View File

@ -444,6 +444,13 @@ pub const Zld = struct {
);
},
macho.S_COALESCED => {
// TODO unwind info
if (mem.eql(u8, "__TEXT", segname) and mem.eql(u8, "__eh_frame", sectname)) {
log.debug("TODO eh frame section: type 0x{x}, name '{s},{s}'", .{
sect.flags, segname, sectname,
});
break :blk null;
}
break :blk self.getSectionByName(segname, sectname) orelse try self.initSection(
segname,
sectname,