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x86_64: save TLS to stack for MachO

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This commit is contained in:
Jakub Konka 2024-01-20 21:53:40 +01:00
parent 6ad4062bf2
commit 080ad94249
1 changed files with 21 additions and 20 deletions
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41
src/arch/x86_64/CodeGen.zig
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@ -16051,26 +16051,27 @@ fn resolveInst(self: *Self, ref: Air.Inst.Ref) InnerError!MCValue {
if (!gop.found_existing) gop.value_ptr.* = InstTracking.init(init: {
const const_mcv = try self.genTypedValue(.{ .ty = ty, .val = Value.fromInterned(ip_index) });
switch (const_mcv) {
.lea_tlv => |tlv_sym| if (self.bin_file.cast(link.File.Elf)) |_| {
if (self.mod.pic) {
try self.spillRegisters(&.{ .rdi, .rax });
} else {
try self.spillRegisters(&.{.rax});
}
const frame_index = try self.allocFrameIndex(FrameAlloc.init(.{
.size = 8,
.alignment = .@"8",
}));
try self.genSetMem(
.{ .frame = frame_index },
0,
Type.usize,
.{ .lea_symbol = .{ .sym = tlv_sym } },
);
break :init .{ .load_frame = .{ .index = frame_index } };
} else if (self.bin_file.cast(link.File.MachO)) |_| {
return self.fail("TODO implement saving TLV variable to stack", .{});
} else break :init const_mcv,
.lea_tlv => |tlv_sym| switch (self.bin_file.tag) {
.elf, .macho => {
if (self.mod.pic) {
try self.spillRegisters(&.{ .rdi, .rax });
} else {
try self.spillRegisters(&.{.rax});
}
const frame_index = try self.allocFrameIndex(FrameAlloc.init(.{
.size = 8,
.alignment = .@"8",
}));
try self.genSetMem(
.{ .frame = frame_index },
0,
Type.usize,
.{ .lea_symbol = .{ .sym = tlv_sym } },
);
break :init .{ .load_frame = .{ .index = frame_index } };
},
else => break :init const_mcv,
},
else => break :init const_mcv,
}
});