authorgravatar for kubkon@jakubkonka.comJakub Konka <kubkon@jakubkonka.com> 2023-05-01 09:54:42+02:00
committergravatar for jacobly@ziglang.orgJacob Young <jacobly@ziglang.org> 2023-05-01 19:22:52-04:00
log7064d7dbf0157aed9b497e1158243e472082633f
tree6469bd38ce404ef80b0ad8258934c586cf0318e5
parent0bdfb288ccc58807355221d3e86451c33e390d01

Revert "x86_64: workaround tagName linker issues"

This reverts commit aac97b92532e7492b9145e1562e31c2e1fa66c15.

1 files changed, 45 insertions(+), 34 deletions(-)

src/arch/x86_64/CodeGen.zig+45-34
......@@ -1641,16 +1641,48 @@ fn genLazy(self: *Self, lazy_sym: link.File.LazySymbol) InnerError!void {
16411641 wip_mir_log.debug("{}.@tagName:", .{enum_ty.fmt(self.bin_file.options.module.?)});
16421642
16431643 const param_regs = abi.getCAbiIntParamRegs(self.target.*);
1644 const param_locks = self.register_manager.lockRegsAssumeUnused(3, param_regs[0..3].*);
1644 const param_locks = self.register_manager.lockRegsAssumeUnused(2, param_regs[0..2].*);
16451645 defer for (param_locks) |lock| self.register_manager.unlockReg(lock);
16461646
16471647 const ret_reg = param_regs[0];
16481648 const enum_mcv = MCValue{ .register = param_regs[1] };
1649 const data_mcv = MCValue{ .register = param_regs[2] };
16501649
16511650 var exitlude_jump_relocs = try self.gpa.alloc(u32, enum_ty.enumFieldCount());
16521651 defer self.gpa.free(exitlude_jump_relocs);
16531652
1653 const data_reg = try self.register_manager.allocReg(null, gp);
1654 const data_lock = self.register_manager.lockRegAssumeUnused(data_reg);
1655 defer self.register_manager.unlockReg(data_lock);
1656
1657 const data_lazy_sym = link.File.LazySymbol{ .kind = .const_data, .ty = enum_ty };
1658 if (self.bin_file.cast(link.File.Elf)) |elf_file| {
1659 const atom_index = elf_file.getOrCreateAtomForLazySymbol(data_lazy_sym) catch |err|
1660 return self.fail("{s} creating lazy symbol", .{@errorName(err)});
1661 const atom = elf_file.getAtom(atom_index);
1662 _ = try atom.getOrCreateOffsetTableEntry(elf_file);
1663 const got_addr = atom.getOffsetTableAddress(elf_file);
1664 try self.asmRegisterMemory(
1665 .mov,
1666 data_reg.to64(),
1667 Memory.sib(.qword, .{ .base = .{ .reg = .ds }, .disp = @intCast(i32, got_addr) }),
1668 );
1669 } else if (self.bin_file.cast(link.File.Coff)) |coff_file| {
1670 const atom_index = coff_file.getOrCreateAtomForLazySymbol(data_lazy_sym) catch |err|
1671 return self.fail("{s} creating lazy symbol", .{@errorName(err)});
1672 const sym_index = coff_file.getAtom(atom_index).getSymbolIndex().?;
1673 try self.genSetReg(data_reg, Type.usize, .{ .lea_got = sym_index });
1674 } else if (self.bin_file.cast(link.File.MachO)) |macho_file| {
1675 const atom_index = macho_file.getOrCreateAtomForLazySymbol(data_lazy_sym) catch |err|
1676 return self.fail("{s} creating lazy symbol", .{@errorName(err)});
1677 const sym_index = macho_file.getAtom(atom_index).getSymbolIndex().?;
1678 try self.genSetReg(data_reg, Type.usize, .{ .lea_got = sym_index });
1679 } else {
1680 return self.fail("TODO implement {s} for {}", .{
1681 @tagName(lazy_sym.kind),
1682 lazy_sym.ty.fmt(self.bin_file.options.module.?),
1683 });
1684 }
1685
16541686 var data_off: i32 = 0;
16551687 for (
16561688 exitlude_jump_relocs,
......@@ -1666,7 +1698,12 @@ fn genLazy(self: *Self, lazy_sym: link.File.LazySymbol) InnerError!void {
16661698 try self.genBinOpMir(.cmp, enum_ty, enum_mcv, tag_mcv);
16671699 const skip_reloc = try self.asmJccReloc(undefined, .ne);
16681700
1669 try self.genSetMem(.{ .reg = ret_reg }, 0, Type.usize, data_mcv.offset(data_off));
1701 try self.genSetMem(
1702 .{ .reg = ret_reg },
1703 0,
1704 Type.usize,
1705 .{ .register_offset = .{ .reg = data_reg, .off = data_off } },
1706 );
16701707 try self.genSetMem(.{ .reg = ret_reg }, 8, Type.usize, .{ .immediate = tag_name.len });
16711708
16721709 exitlude_jump_reloc.* = try self.asmJmpReloc(undefined);
......@@ -8626,7 +8663,6 @@ fn airMemcpy(self: *Self, inst: Air.Inst.Index) !void {
86268663}
86278664
86288665fn airTagName(self: *Self, inst: Air.Inst.Index) !void {
8629 const mod = self.bin_file.options.module.?;
86308666 const un_op = self.air.instructions.items(.data)[inst].un_op;
86318667 const inst_ty = self.air.typeOfIndex(inst);
86328668 const enum_ty = self.air.typeOf(un_op);
......@@ -8657,35 +8693,10 @@ fn airTagName(self: *Self, inst: Air.Inst.Index) !void {
86578693 const operand = try self.resolveInst(un_op);
86588694 try self.genSetReg(param_regs[1], enum_ty, operand);
86598695
8660 const data_lazy_sym = link.File.LazySymbol.initDecl(.const_data, enum_ty.getOwnerDecl(), mod);
8661 if (self.bin_file.cast(link.File.Elf)) |elf_file| {
8662 const atom_index = elf_file.getOrCreateAtomForLazySymbol(data_lazy_sym) catch |err|
8663 return self.fail("{s} creating lazy symbol", .{@errorName(err)});
8664 const atom = elf_file.getAtom(atom_index);
8665 _ = try atom.getOrCreateOffsetTableEntry(elf_file);
8666 const got_addr = atom.getOffsetTableAddress(elf_file);
8667 try self.asmRegisterMemory(
8668 .mov,
8669 param_regs[2],
8670 Memory.sib(.qword, .{ .base = .{ .reg = .ds }, .disp = @intCast(i32, got_addr) }),
8671 );
8672 } else if (self.bin_file.cast(link.File.Coff)) |coff_file| {
8673 const atom_index = coff_file.getOrCreateAtomForLazySymbol(data_lazy_sym) catch |err|
8674 return self.fail("{s} creating lazy symbol", .{@errorName(err)});
8675 const sym_index = coff_file.getAtom(atom_index).getSymbolIndex().?;
8676 try self.genSetReg(param_regs[2], Type.usize, .{ .lea_got = sym_index });
8677 } else if (self.bin_file.cast(link.File.MachO)) |macho_file| {
8678 const atom_index = macho_file.getOrCreateAtomForLazySymbol(data_lazy_sym) catch |err|
8679 return self.fail("{s} creating lazy symbol", .{@errorName(err)});
8680 const sym_index = macho_file.getAtom(atom_index).getSymbolIndex().?;
8681 try self.genSetReg(param_regs[2], Type.usize, .{ .lea_got = sym_index });
8682 } else {
8683 return self.fail("TODO implement airTagName for x86_64 {s}", .{@tagName(self.bin_file.tag)});
8684 }
8685
8686 const code_lazy_sym = link.File.LazySymbol.initDecl(.code, enum_ty.getOwnerDecl(), mod);
8696 const mod = self.bin_file.options.module.?;
8697 const lazy_sym = link.File.LazySymbol.initDecl(.code, enum_ty.getOwnerDecl(), mod);
86878698 if (self.bin_file.cast(link.File.Elf)) |elf_file| {
8688 const atom_index = elf_file.getOrCreateAtomForLazySymbol(code_lazy_sym) catch |err|
8699 const atom_index = elf_file.getOrCreateAtomForLazySymbol(lazy_sym) catch |err|
86898700 return self.fail("{s} creating lazy symbol", .{@errorName(err)});
86908701 const atom = elf_file.getAtom(atom_index);
86918702 _ = try atom.getOrCreateOffsetTableEntry(elf_file);
......@@ -8695,13 +8706,13 @@ fn airTagName(self: *Self, inst: Air.Inst.Index) !void {
86958706 Memory.sib(.qword, .{ .base = .{ .reg = .ds }, .disp = @intCast(i32, got_addr) }),
86968707 );
86978708 } else if (self.bin_file.cast(link.File.Coff)) |coff_file| {
8698 const atom_index = coff_file.getOrCreateAtomForLazySymbol(code_lazy_sym) catch |err|
8709 const atom_index = coff_file.getOrCreateAtomForLazySymbol(lazy_sym) catch |err|
86998710 return self.fail("{s} creating lazy symbol", .{@errorName(err)});
87008711 const sym_index = coff_file.getAtom(atom_index).getSymbolIndex().?;
87018712 try self.genSetReg(.rax, Type.usize, .{ .lea_got = sym_index });
87028713 try self.asmRegister(.call, .rax);
87038714 } else if (self.bin_file.cast(link.File.MachO)) |macho_file| {
8704 const atom_index = macho_file.getOrCreateAtomForLazySymbol(code_lazy_sym) catch |err|
8715 const atom_index = macho_file.getOrCreateAtomForLazySymbol(lazy_sym) catch |err|
87058716 return self.fail("{s} creating lazy symbol", .{@errorName(err)});
87068717 const sym_index = macho_file.getAtom(atom_index).getSymbolIndex().?;
87078718 try self.genSetReg(.rax, Type.usize, .{ .lea_got = sym_index });