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macho: migrate to named struct for slices

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This commit is contained in:
Jakub Konka 2022-03-05 14:43:48 +01:00
parent eaf08bfb84
commit 3318400ea3
1 changed files with 10 additions and 5 deletions
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15
src/link/MachO/DebugSymbols.zig
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@ -1373,13 +1373,16 @@ fn addDbgInfoType(
},
.Pointer => {
if (ty.isSlice()) {
// Slices are anonymous structs: struct { .ptr = *, .len = N }
try dbg_info_buffer.ensureUnusedCapacity(23);
// Slices are structs: struct { .ptr = *, .len = N }
// DW.AT.structure_type
dbg_info_buffer.appendAssumeCapacity(abbrev_anon_struct_type);
try dbg_info_buffer.ensureUnusedCapacity(2);
dbg_info_buffer.appendAssumeCapacity(abbrev_struct_type);
// DW.AT.byte_size, DW.FORM.sdata
dbg_info_buffer.appendAssumeCapacity(16);
dbg_info_buffer.appendAssumeCapacity(@sizeOf(usize) * 2);
// DW.AT.name, DW.FORM.string
try dbg_info_buffer.writer().print("{}\x00", .{ty});
// DW.AT.member
try dbg_info_buffer.ensureUnusedCapacity(5);
dbg_info_buffer.appendAssumeCapacity(abbrev_struct_member);
// DW.AT.name, DW.FORM.string
dbg_info_buffer.appendSliceAssumeCapacity("ptr");
@ -1391,6 +1394,7 @@ fn addDbgInfoType(
const ptr_ty = ty.slicePtrFieldType(buf);
try relocs.append(.{ .ty = ptr_ty, .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);
@ -1402,7 +1406,8 @@ fn addDbgInfoType(
try dbg_info_buffer.resize(index + 4);
try relocs.append(.{ .ty = Type.initTag(.usize), .reloc = @intCast(u32, index) });
// DW.AT.data_member_location, DW.FORM.sdata
dbg_info_buffer.appendAssumeCapacity(8);
try dbg_info_buffer.ensureUnusedCapacity(2);
dbg_info_buffer.appendAssumeCapacity(@sizeOf(usize));
// DW.AT.structure_type delimit children
dbg_info_buffer.appendAssumeCapacity(0);
} else {