authorgravatar for kubkon@jakubkonka.comJakub Konka <kubkon@jakubkonka.com> 2024-03-24 20:18:26+01:00
committergravatar for kubkon@jakubkonka.comJakub Konka <kubkon@jakubkonka.com> 2024-03-24 20:18:26+01:00
logc5a5b420dc141c0a78d9f51f5bee986bae5ce8ab
treebd4f80a7697066bc2da76c64908053a33c8ac106
parente90583f5d17a5a841b7ed8e654af9ed8ce119de5

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

1 files changed, 17 insertions(+), 17 deletions(-)

src/link/Dwarf.zig+17-17
...@@ -194,7 +194,7 @@ pub const DeclState = struct {...@@ -194,7 +194,7 @@ pub const DeclState = struct {
194 dbg_info_buffer.appendAssumeCapacity(0);194 dbg_info_buffer.appendAssumeCapacity(0);
195 // DW.AT.type, DW.FORM.ref4195 // DW.AT.type, DW.FORM.ref4
196 var index = dbg_info_buffer.items.len;196 var index = dbg_info_buffer.items.len;
197 try dbg_info_buffer.resize(index + 4);197 try dbg_info_buffer.writer().writeByteNTimes(0, 4);
198 try self.addTypeRelocGlobal(atom_index, Type.bool, @intCast(index));198 try self.addTypeRelocGlobal(atom_index, Type.bool, @intCast(index));
199 // DW.AT.data_member_location, DW.FORM.udata199 // DW.AT.data_member_location, DW.FORM.udata
200 try dbg_info_buffer.ensureUnusedCapacity(6);200 try dbg_info_buffer.ensureUnusedCapacity(6);
...@@ -206,7 +206,7 @@ pub const DeclState = struct {...@@ -206,7 +206,7 @@ pub const DeclState = struct {
206 dbg_info_buffer.appendAssumeCapacity(0);206 dbg_info_buffer.appendAssumeCapacity(0);
207 // DW.AT.type, DW.FORM.ref4207 // DW.AT.type, DW.FORM.ref4
208 index = dbg_info_buffer.items.len;208 index = dbg_info_buffer.items.len;
209 try dbg_info_buffer.resize(index + 4);209 try dbg_info_buffer.writer().writeByteNTimes(0, 4);
210 try self.addTypeRelocGlobal(atom_index, payload_ty, @intCast(index));210 try self.addTypeRelocGlobal(atom_index, payload_ty, @intCast(index));
211 // DW.AT.data_member_location, DW.FORM.udata211 // DW.AT.data_member_location, DW.FORM.udata
212 const offset = abi_size - payload_ty.abiSize(mod);212 const offset = abi_size - payload_ty.abiSize(mod);
...@@ -235,7 +235,7 @@ pub const DeclState = struct {...@@ -235,7 +235,7 @@ pub const DeclState = struct {
235 dbg_info_buffer.appendAssumeCapacity(0);235 dbg_info_buffer.appendAssumeCapacity(0);
236 // DW.AT.type, DW.FORM.ref4236 // DW.AT.type, DW.FORM.ref4
237 var index = dbg_info_buffer.items.len;237 var index = dbg_info_buffer.items.len;
238 try dbg_info_buffer.resize(index + 4);238 try dbg_info_buffer.writer().writeByteNTimes(0, 4);
239 const ptr_ty = ty.slicePtrFieldType(mod);239 const ptr_ty = ty.slicePtrFieldType(mod);
240 try self.addTypeRelocGlobal(atom_index, ptr_ty, @intCast(index));240 try self.addTypeRelocGlobal(atom_index, ptr_ty, @intCast(index));
241 // DW.AT.data_member_location, DW.FORM.udata241 // DW.AT.data_member_location, DW.FORM.udata
...@@ -248,7 +248,7 @@ pub const DeclState = struct {...@@ -248,7 +248,7 @@ pub const DeclState = struct {
248 dbg_info_buffer.appendAssumeCapacity(0);248 dbg_info_buffer.appendAssumeCapacity(0);
249 // DW.AT.type, DW.FORM.ref4249 // DW.AT.type, DW.FORM.ref4
250 index = dbg_info_buffer.items.len;250 index = dbg_info_buffer.items.len;
251 try dbg_info_buffer.resize(index + 4);251 try dbg_info_buffer.writer().writeByteNTimes(0, 4);
252 try self.addTypeRelocGlobal(atom_index, Type.usize, @intCast(index));252 try self.addTypeRelocGlobal(atom_index, Type.usize, @intCast(index));
253 // DW.AT.data_member_location, DW.FORM.udata253 // DW.AT.data_member_location, DW.FORM.udata
254 try dbg_info_buffer.ensureUnusedCapacity(2);254 try dbg_info_buffer.ensureUnusedCapacity(2);
...@@ -260,7 +260,7 @@ pub const DeclState = struct {...@@ -260,7 +260,7 @@ pub const DeclState = struct {
260 dbg_info_buffer.appendAssumeCapacity(@intFromEnum(AbbrevCode.ptr_type));260 dbg_info_buffer.appendAssumeCapacity(@intFromEnum(AbbrevCode.ptr_type));
261 // DW.AT.type, DW.FORM.ref4261 // DW.AT.type, DW.FORM.ref4
262 const index = dbg_info_buffer.items.len;262 const index = dbg_info_buffer.items.len;
263 try dbg_info_buffer.resize(index + 4);263 try dbg_info_buffer.writer().writeByteNTimes(0, 4);
264 try self.addTypeRelocGlobal(atom_index, ty.childType(mod), @intCast(index));264 try self.addTypeRelocGlobal(atom_index, ty.childType(mod), @intCast(index));
265 }265 }
266 },266 },
...@@ -271,13 +271,13 @@ pub const DeclState = struct {...@@ -271,13 +271,13 @@ pub const DeclState = struct {
271 try dbg_info_buffer.writer().print("{}\x00", .{ty.fmt(mod)});271 try dbg_info_buffer.writer().print("{}\x00", .{ty.fmt(mod)});
272 // DW.AT.type, DW.FORM.ref4272 // DW.AT.type, DW.FORM.ref4
273 var index = dbg_info_buffer.items.len;273 var index = dbg_info_buffer.items.len;
274 try dbg_info_buffer.resize(index + 4);274 try dbg_info_buffer.writer().writeByteNTimes(0, 4);
275 try self.addTypeRelocGlobal(atom_index, ty.childType(mod), @intCast(index));275 try self.addTypeRelocGlobal(atom_index, ty.childType(mod), @intCast(index));
276 // DW.AT.subrange_type276 // DW.AT.subrange_type
277 try dbg_info_buffer.append(@intFromEnum(AbbrevCode.array_dim));277 try dbg_info_buffer.append(@intFromEnum(AbbrevCode.array_dim));
278 // DW.AT.type, DW.FORM.ref4278 // DW.AT.type, DW.FORM.ref4
279 index = dbg_info_buffer.items.len;279 index = dbg_info_buffer.items.len;
280 try dbg_info_buffer.resize(index + 4);280 try dbg_info_buffer.writer().writeByteNTimes(0, 4);
281 try self.addTypeRelocGlobal(atom_index, Type.usize, @intCast(index));281 try self.addTypeRelocGlobal(atom_index, Type.usize, @intCast(index));
282 // DW.AT.count, DW.FORM.udata282 // DW.AT.count, DW.FORM.udata
283 const len = ty.arrayLenIncludingSentinel(mod);283 const len = ty.arrayLenIncludingSentinel(mod);
...@@ -304,7 +304,7 @@ pub const DeclState = struct {...@@ -304,7 +304,7 @@ pub const DeclState = struct {
304 try dbg_info_buffer.writer().print("{d}\x00", .{field_index});304 try dbg_info_buffer.writer().print("{d}\x00", .{field_index});
305 // DW.AT.type, DW.FORM.ref4305 // DW.AT.type, DW.FORM.ref4
306 const index = dbg_info_buffer.items.len;306 const index = dbg_info_buffer.items.len;
307 try dbg_info_buffer.resize(index + 4);307 try dbg_info_buffer.writer().writeByteNTimes(0, 4);
308 try self.addTypeRelocGlobal(atom_index, Type.fromInterned(field_ty), @intCast(index));308 try self.addTypeRelocGlobal(atom_index, Type.fromInterned(field_ty), @intCast(index));
309 // DW.AT.data_member_location, DW.FORM.udata309 // DW.AT.data_member_location, DW.FORM.udata
310 const field_off = ty.structFieldOffset(field_index, mod);310 const field_off = ty.structFieldOffset(field_index, mod);
...@@ -331,7 +331,7 @@ pub const DeclState = struct {...@@ -331,7 +331,7 @@ pub const DeclState = struct {
331 try dbg_info_buffer.writer().print("{d}\x00", .{field_index});331 try dbg_info_buffer.writer().print("{d}\x00", .{field_index});
332 // DW.AT.type, DW.FORM.ref4332 // DW.AT.type, DW.FORM.ref4
333 const index = dbg_info_buffer.items.len;333 const index = dbg_info_buffer.items.len;
334 try dbg_info_buffer.resize(index + 4);334 try dbg_info_buffer.writer().writeByteNTimes(0, 4);
335 try self.addTypeRelocGlobal(atom_index, Type.fromInterned(field_ty), @intCast(index));335 try self.addTypeRelocGlobal(atom_index, Type.fromInterned(field_ty), @intCast(index));
336 // DW.AT.data_member_location, DW.FORM.udata336 // DW.AT.data_member_location, DW.FORM.udata
337 try leb128.writeULEB128(dbg_info_buffer.writer(), field_off);337 try leb128.writeULEB128(dbg_info_buffer.writer(), field_off);
...@@ -352,7 +352,7 @@ pub const DeclState = struct {...@@ -352,7 +352,7 @@ pub const DeclState = struct {
352 dbg_info_buffer.appendAssumeCapacity(0);352 dbg_info_buffer.appendAssumeCapacity(0);
353 // DW.AT.type, DW.FORM.ref4353 // DW.AT.type, DW.FORM.ref4
354 const index = dbg_info_buffer.items.len;354 const index = dbg_info_buffer.items.len;
355 try dbg_info_buffer.resize(index + 4);355 try dbg_info_buffer.writer().writeByteNTimes(0, 4);
356 try self.addTypeRelocGlobal(atom_index, Type.fromInterned(field_ty), @intCast(index));356 try self.addTypeRelocGlobal(atom_index, Type.fromInterned(field_ty), @intCast(index));
357 // DW.AT.data_member_location, DW.FORM.udata357 // DW.AT.data_member_location, DW.FORM.udata
358 try leb128.writeULEB128(dbg_info_buffer.writer(), field_off);358 try leb128.writeULEB128(dbg_info_buffer.writer(), field_off);
...@@ -425,7 +425,7 @@ pub const DeclState = struct {...@@ -425,7 +425,7 @@ pub const DeclState = struct {
425 dbg_info_buffer.appendAssumeCapacity(0);425 dbg_info_buffer.appendAssumeCapacity(0);
426 // DW.AT.type, DW.FORM.ref4426 // DW.AT.type, DW.FORM.ref4
427 const inner_union_index = dbg_info_buffer.items.len;427 const inner_union_index = dbg_info_buffer.items.len;
428 try dbg_info_buffer.resize(inner_union_index + 4);428 try dbg_info_buffer.writer().writeByteNTimes(0, 4);
429 try self.addTypeRelocLocal(atom_index, @intCast(inner_union_index), 5);429 try self.addTypeRelocLocal(atom_index, @intCast(inner_union_index), 5);
430 // DW.AT.data_member_location, DW.FORM.udata430 // DW.AT.data_member_location, DW.FORM.udata
431 try leb128.writeULEB128(dbg_info_buffer.writer(), payload_offset);431 try leb128.writeULEB128(dbg_info_buffer.writer(), payload_offset);
...@@ -452,7 +452,7 @@ pub const DeclState = struct {...@@ -452,7 +452,7 @@ pub const DeclState = struct {
452 try dbg_info_buffer.append(0);452 try dbg_info_buffer.append(0);
453 // DW.AT.type, DW.FORM.ref4453 // DW.AT.type, DW.FORM.ref4
454 const index = dbg_info_buffer.items.len;454 const index = dbg_info_buffer.items.len;
455 try dbg_info_buffer.resize(index + 4);455 try dbg_info_buffer.writer().writeByteNTimes(0, 4);
456 try self.addTypeRelocGlobal(atom_index, Type.fromInterned(field_ty), @intCast(index));456 try self.addTypeRelocGlobal(atom_index, Type.fromInterned(field_ty), @intCast(index));
457 // DW.AT.data_member_location, DW.FORM.udata457 // DW.AT.data_member_location, DW.FORM.udata
458 try dbg_info_buffer.append(0);458 try dbg_info_buffer.append(0);
...@@ -469,7 +469,7 @@ pub const DeclState = struct {...@@ -469,7 +469,7 @@ pub const DeclState = struct {
469 dbg_info_buffer.appendAssumeCapacity(0);469 dbg_info_buffer.appendAssumeCapacity(0);
470 // DW.AT.type, DW.FORM.ref4470 // DW.AT.type, DW.FORM.ref4
471 const index = dbg_info_buffer.items.len;471 const index = dbg_info_buffer.items.len;
472 try dbg_info_buffer.resize(index + 4);472 try dbg_info_buffer.writer().writeByteNTimes(0, 4);
473 try self.addTypeRelocGlobal(atom_index, Type.fromInterned(union_obj.enum_tag_ty), @intCast(index));473 try self.addTypeRelocGlobal(atom_index, Type.fromInterned(union_obj.enum_tag_ty), @intCast(index));
474 // DW.AT.data_member_location, DW.FORM.udata474 // DW.AT.data_member_location, DW.FORM.udata
475 try leb128.writeULEB128(dbg_info_buffer.writer(), tag_offset);475 try leb128.writeULEB128(dbg_info_buffer.writer(), tag_offset);
...@@ -505,7 +505,7 @@ pub const DeclState = struct {...@@ -505,7 +505,7 @@ pub const DeclState = struct {
505 dbg_info_buffer.appendAssumeCapacity(0);505 dbg_info_buffer.appendAssumeCapacity(0);
506 // DW.AT.type, DW.FORM.ref4506 // DW.AT.type, DW.FORM.ref4
507 const index = dbg_info_buffer.items.len;507 const index = dbg_info_buffer.items.len;
508 try dbg_info_buffer.resize(index + 4);508 try dbg_info_buffer.writer().writeByteNTimes(0, 4);
509 try self.addTypeRelocGlobal(atom_index, payload_ty, @intCast(index));509 try self.addTypeRelocGlobal(atom_index, payload_ty, @intCast(index));
510 // DW.AT.data_member_location, DW.FORM.udata510 // DW.AT.data_member_location, DW.FORM.udata
511 try leb128.writeULEB128(dbg_info_buffer.writer(), payload_off);511 try leb128.writeULEB128(dbg_info_buffer.writer(), payload_off);
...@@ -520,7 +520,7 @@ pub const DeclState = struct {...@@ -520,7 +520,7 @@ pub const DeclState = struct {
520 dbg_info_buffer.appendAssumeCapacity(0);520 dbg_info_buffer.appendAssumeCapacity(0);
521 // DW.AT.type, DW.FORM.ref4521 // DW.AT.type, DW.FORM.ref4
522 const index = dbg_info_buffer.items.len;522 const index = dbg_info_buffer.items.len;
523 try dbg_info_buffer.resize(index + 4);523 try dbg_info_buffer.writer().writeByteNTimes(0, 4);
524 try self.addTypeRelocGlobal(atom_index, error_ty, @intCast(index));524 try self.addTypeRelocGlobal(atom_index, error_ty, @intCast(index));
525 // DW.AT.data_member_location, DW.FORM.udata525 // DW.AT.data_member_location, DW.FORM.udata
526 try leb128.writeULEB128(dbg_info_buffer.writer(), error_off);526 try leb128.writeULEB128(dbg_info_buffer.writer(), error_off);
...@@ -661,7 +661,7 @@ pub const DeclState = struct {...@@ -661,7 +661,7 @@ pub const DeclState = struct {
661661
662 try dbg_info.ensureUnusedCapacity(5 + name_with_null.len);662 try dbg_info.ensureUnusedCapacity(5 + name_with_null.len);
663 const index = dbg_info.items.len;663 const index = dbg_info.items.len;
664 try dbg_info.resize(index + 4); // dw.at.type, dw.form.ref4664 try dbg_info.writer().writeByteNTimes(0, 4);
665 try self.addTypeRelocGlobal(atom_index, ty, @intCast(index)); // DW.AT.type, DW.FORM.ref4665 try self.addTypeRelocGlobal(atom_index, ty, @intCast(index)); // DW.AT.type, DW.FORM.ref4
666 dbg_info.appendSliceAssumeCapacity(name_with_null); // DW.AT.name, DW.FORM.string666 dbg_info.appendSliceAssumeCapacity(name_with_null); // DW.AT.name, DW.FORM.string
667 }667 }
...@@ -877,7 +877,7 @@ pub const DeclState = struct {...@@ -877,7 +877,7 @@ pub const DeclState = struct {
877877
878 try dbg_info.ensureUnusedCapacity(5 + name_with_null.len);878 try dbg_info.ensureUnusedCapacity(5 + name_with_null.len);
879 const index = dbg_info.items.len;879 const index = dbg_info.items.len;
880 try dbg_info.resize(index + 4); // dw.at.type, dw.form.ref4880 try dbg_info.writer().writeByteNTimes(0, 4); // dw.at.type, dw.form.ref4
881 try self.addTypeRelocGlobal(atom_index, child_ty, @intCast(index));881 try self.addTypeRelocGlobal(atom_index, child_ty, @intCast(index));
882 dbg_info.appendSliceAssumeCapacity(name_with_null); // DW.AT.name, DW.FORM.string882 dbg_info.appendSliceAssumeCapacity(name_with_null); // DW.AT.name, DW.FORM.string
883 }883 }