mirror/zig
1
0
Fork 0
mirror of https://github.com/ziglang/zig.git synced 2026-01-25 08:47:55 +00:00
Code Issues Packages Projects Releases Wiki Activity

macho: handle optional non-ptr types in DWARF

Browse Source
This commit is contained in:
Jakub Konka 2022-03-05 14:13:59 +01:00
parent ac936c0aba
commit eaf08bfb84
1 changed files with 37 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

39
src/link/MachO/DebugSymbols.zig
View File

@ -1332,8 +1332,43 @@ fn addDbgInfoType(
// DW.AT.name, DW.FORM.string
try dbg_info_buffer.writer().print("{}\x00", .{ty});
} else {
log.debug("TODO implement .debug_info for type '{}'", .{ty});
try dbg_info_buffer.append(abbrev_pad1);
// Non-pointer optionals are structs: struct { .maybe = *, .val = * }
var buf = try arena.create(Type.Payload.ElemType);
const payload_ty = ty.optionalChild(buf);
// DW.AT.structure_type
try dbg_info_buffer.append(abbrev_struct_type);
// DW.AT.byte_size, DW.FORM.sdata
const abi_size = ty.abiSize(target);
try leb128.writeULEB128(dbg_info_buffer.writer(), abi_size);
// DW.AT.name, DW.FORM.string
try dbg_info_buffer.writer().print("{}\x00", .{ty});
// DW.AT.member
try dbg_info_buffer.ensureUnusedCapacity(7);
dbg_info_buffer.appendAssumeCapacity(abbrev_struct_member);
// DW.AT.name, DW.FORM.string
dbg_info_buffer.appendSliceAssumeCapacity("maybe");
dbg_info_buffer.appendAssumeCapacity(0);
// DW.AT.type, DW.FORM.ref4
var index = dbg_info_buffer.items.len;
try dbg_info_buffer.resize(index + 4);
try relocs.append(.{ .ty = Type.bool, .reloc = @intCast(u32, index) });
// DW.AT.data_member_location, DW.FORM.sdata
try dbg_info_buffer.ensureUnusedCapacity(6);
dbg_info_buffer.appendAssumeCapacity(0);
// DW.AT.member
dbg_info_buffer.appendAssumeCapacity(abbrev_struct_member);
// DW.AT.name, DW.FORM.string
dbg_info_buffer.appendSliceAssumeCapacity("val");
dbg_info_buffer.appendAssumeCapacity(0);
// DW.AT.type, DW.FORM.ref4
index = dbg_info_buffer.items.len;
try dbg_info_buffer.resize(index + 4);
try relocs.append(.{ .ty = payload_ty, .reloc = @intCast(u32, index) });
// DW.AT.data_member_location, DW.FORM.sdata
const offset = abi_size - payload_ty.abiSize(target);
try leb128.writeULEB128(dbg_info_buffer.writer(), offset);
// DW.AT.structure_type delimit children
try dbg_info_buffer.append(0);
}
},
.Pointer => {