diff options
Diffstat (limited to 'src/codegen.zig')
| -rw-r--r-- | src/codegen.zig | 12 |
1 files changed, 6 insertions, 6 deletions
diff --git a/src/codegen.zig b/src/codegen.zig index a1d3cc2fc4..919d1ef457 100644 --- a/src/codegen.zig +++ b/src/codegen.zig @@ -1532,12 +1532,12 @@ fn Function(comptime arch: std.Target.Cpu.Arch) type { if (func_inst.val.cast(Value.Payload.Function)) |func_val| { const func = func_val.func; const got = &macho_file.sections.items[macho_file.got_section_index.?]; - const ptr_bytes = 8; - const got_addr = @intCast(u32, got.addr + func.owner_decl.link.macho.offset_table_index.? * ptr_bytes); - // ff 14 25 xx xx xx xx call [addr] - try self.code.ensureCapacity(self.code.items.len + 7); - self.code.appendSliceAssumeCapacity(&[3]u8{ 0xff, 0x14, 0x25 }); - mem.writeIntLittle(u32, self.code.addManyAsArrayAssumeCapacity(4), got_addr); + const got_addr = got.addr + func.owner_decl.link.macho.offset_table_index.? * @sizeOf(u64); + // Here, we store the got address in %rax, and then call %rax + // movabsq [addr], %rax + try self.genSetReg(inst.base.src, .rax, .{ .memory = got_addr }); + // callq *%rax + self.code.appendSliceAssumeCapacity(&[2]u8{ 0xff, 0xd0 }); } else { return self.fail(inst.base.src, "TODO implement calling bitcasted functions", .{}); } |