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dwarf: actually write out well-defined placeholder bytes for relocs

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This commit is contained in:
Jakub Konka 2024-03-24 20:18:26 +01:00
parent e90583f5d1
commit c5a5b420dc
1 changed files with 17 additions and 17 deletions
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34
src/link/Dwarf.zig
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@ -194,7 +194,7 @@ pub const DeclState = struct {
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 dbg_info_buffer.writer().writeByteNTimes(0, 4);
try self.addTypeRelocGlobal(atom_index, Type.bool, @intCast(index));
// DW.AT.data_member_location, DW.FORM.udata
try dbg_info_buffer.ensureUnusedCapacity(6);
@ -206,7 +206,7 @@ pub const DeclState = struct {
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 dbg_info_buffer.writer().writeByteNTimes(0, 4);
try self.addTypeRelocGlobal(atom_index, payload_ty, @intCast(index));
// DW.AT.data_member_location, DW.FORM.udata
const offset = abi_size - payload_ty.abiSize(mod);
@ -235,7 +235,7 @@ pub const DeclState = struct {
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 dbg_info_buffer.writer().writeByteNTimes(0, 4);
const ptr_ty = ty.slicePtrFieldType(mod);
try self.addTypeRelocGlobal(atom_index, ptr_ty, @intCast(index));
// DW.AT.data_member_location, DW.FORM.udata
@ -248,7 +248,7 @@ pub const DeclState = struct {
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 dbg_info_buffer.writer().writeByteNTimes(0, 4);
try self.addTypeRelocGlobal(atom_index, Type.usize, @intCast(index));
// DW.AT.data_member_location, DW.FORM.udata
try dbg_info_buffer.ensureUnusedCapacity(2);
@ -260,7 +260,7 @@ pub const DeclState = struct {
dbg_info_buffer.appendAssumeCapacity(@intFromEnum(AbbrevCode.ptr_type));
// DW.AT.type, DW.FORM.ref4
const index = dbg_info_buffer.items.len;
try dbg_info_buffer.resize(index + 4);
try dbg_info_buffer.writer().writeByteNTimes(0, 4);
try self.addTypeRelocGlobal(atom_index, ty.childType(mod), @intCast(index));
}
},
@ -271,13 +271,13 @@ pub const DeclState = struct {
try dbg_info_buffer.writer().print("{}\x00", .{ty.fmt(mod)});
// DW.AT.type, DW.FORM.ref4
var index = dbg_info_buffer.items.len;
try dbg_info_buffer.resize(index + 4);
try dbg_info_buffer.writer().writeByteNTimes(0, 4);
try self.addTypeRelocGlobal(atom_index, ty.childType(mod), @intCast(index));
// DW.AT.subrange_type
try dbg_info_buffer.append(@intFromEnum(AbbrevCode.array_dim));
// DW.AT.type, DW.FORM.ref4
index = dbg_info_buffer.items.len;
try dbg_info_buffer.resize(index + 4);
try dbg_info_buffer.writer().writeByteNTimes(0, 4);
try self.addTypeRelocGlobal(atom_index, Type.usize, @intCast(index));
// DW.AT.count, DW.FORM.udata
const len = ty.arrayLenIncludingSentinel(mod);
@ -304,7 +304,7 @@ pub const DeclState = struct {
try dbg_info_buffer.writer().print("{d}\x00", .{field_index});
// DW.AT.type, DW.FORM.ref4
const index = dbg_info_buffer.items.len;
try dbg_info_buffer.resize(index + 4);
try dbg_info_buffer.writer().writeByteNTimes(0, 4);
try self.addTypeRelocGlobal(atom_index, Type.fromInterned(field_ty), @intCast(index));
// DW.AT.data_member_location, DW.FORM.udata
const field_off = ty.structFieldOffset(field_index, mod);
@ -331,7 +331,7 @@ pub const DeclState = struct {
try dbg_info_buffer.writer().print("{d}\x00", .{field_index});
// DW.AT.type, DW.FORM.ref4
const index = dbg_info_buffer.items.len;
try dbg_info_buffer.resize(index + 4);
try dbg_info_buffer.writer().writeByteNTimes(0, 4);
try self.addTypeRelocGlobal(atom_index, Type.fromInterned(field_ty), @intCast(index));
// DW.AT.data_member_location, DW.FORM.udata
try leb128.writeULEB128(dbg_info_buffer.writer(), field_off);
@ -352,7 +352,7 @@ pub const DeclState = struct {
dbg_info_buffer.appendAssumeCapacity(0);
// DW.AT.type, DW.FORM.ref4
const index = dbg_info_buffer.items.len;
try dbg_info_buffer.resize(index + 4);
try dbg_info_buffer.writer().writeByteNTimes(0, 4);
try self.addTypeRelocGlobal(atom_index, Type.fromInterned(field_ty), @intCast(index));
// DW.AT.data_member_location, DW.FORM.udata
try leb128.writeULEB128(dbg_info_buffer.writer(), field_off);
@ -425,7 +425,7 @@ pub const DeclState = struct {
dbg_info_buffer.appendAssumeCapacity(0);
// DW.AT.type, DW.FORM.ref4
const inner_union_index = dbg_info_buffer.items.len;
try dbg_info_buffer.resize(inner_union_index + 4);
try dbg_info_buffer.writer().writeByteNTimes(0, 4);
try self.addTypeRelocLocal(atom_index, @intCast(inner_union_index), 5);
// DW.AT.data_member_location, DW.FORM.udata
try leb128.writeULEB128(dbg_info_buffer.writer(), payload_offset);
@ -452,7 +452,7 @@ pub const DeclState = struct {
try dbg_info_buffer.append(0);
// DW.AT.type, DW.FORM.ref4
const index = dbg_info_buffer.items.len;
try dbg_info_buffer.resize(index + 4);
try dbg_info_buffer.writer().writeByteNTimes(0, 4);
try self.addTypeRelocGlobal(atom_index, Type.fromInterned(field_ty), @intCast(index));
// DW.AT.data_member_location, DW.FORM.udata
try dbg_info_buffer.append(0);
@ -469,7 +469,7 @@ pub const DeclState = struct {
dbg_info_buffer.appendAssumeCapacity(0);
// DW.AT.type, DW.FORM.ref4
const index = dbg_info_buffer.items.len;
try dbg_info_buffer.resize(index + 4);
try dbg_info_buffer.writer().writeByteNTimes(0, 4);
try self.addTypeRelocGlobal(atom_index, Type.fromInterned(union_obj.enum_tag_ty), @intCast(index));
// DW.AT.data_member_location, DW.FORM.udata
try leb128.writeULEB128(dbg_info_buffer.writer(), tag_offset);
@ -505,7 +505,7 @@ pub const DeclState = struct {
dbg_info_buffer.appendAssumeCapacity(0);
// DW.AT.type, DW.FORM.ref4
const index = dbg_info_buffer.items.len;
try dbg_info_buffer.resize(index + 4);
try dbg_info_buffer.writer().writeByteNTimes(0, 4);
try self.addTypeRelocGlobal(atom_index, payload_ty, @intCast(index));
// DW.AT.data_member_location, DW.FORM.udata
try leb128.writeULEB128(dbg_info_buffer.writer(), payload_off);
@ -520,7 +520,7 @@ pub const DeclState = struct {
dbg_info_buffer.appendAssumeCapacity(0);
// DW.AT.type, DW.FORM.ref4
const index = dbg_info_buffer.items.len;
try dbg_info_buffer.resize(index + 4);
try dbg_info_buffer.writer().writeByteNTimes(0, 4);
try self.addTypeRelocGlobal(atom_index, error_ty, @intCast(index));
// DW.AT.data_member_location, DW.FORM.udata
try leb128.writeULEB128(dbg_info_buffer.writer(), error_off);
@ -661,7 +661,7 @@ pub const DeclState = struct {
try dbg_info.ensureUnusedCapacity(5 + name_with_null.len);
const index = dbg_info.items.len;
try dbg_info.resize(index + 4); // dw.at.type, dw.form.ref4
try dbg_info.writer().writeByteNTimes(0, 4);
try self.addTypeRelocGlobal(atom_index, ty, @intCast(index)); // DW.AT.type, DW.FORM.ref4
dbg_info.appendSliceAssumeCapacity(name_with_null); // DW.AT.name, DW.FORM.string
}
@ -877,7 +877,7 @@ pub const DeclState = struct {
try dbg_info.ensureUnusedCapacity(5 + name_with_null.len);
const index = dbg_info.items.len;
try dbg_info.resize(index + 4); // dw.at.type, dw.form.ref4
try dbg_info.writer().writeByteNTimes(0, 4); // dw.at.type, dw.form.ref4
try self.addTypeRelocGlobal(atom_index, child_ty, @intCast(index));
dbg_info.appendSliceAssumeCapacity(name_with_null); // DW.AT.name, DW.FORM.string
}