1 // Copyright 2009 The Go Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style 3 // license that can be found in the LICENSE file. 4 5 #include "textflag.h" 6 7 TEXT _rt0_amd64_darwin(SB),NOSPLIT,$-8 8 LEAQ 8(SP), SI // argv 9 MOVQ 0(SP), DI // argc 10 MOVQ $main(SB), AX 11 JMP AX 12 13 // When linking with -shared, this symbol is called when the shared library 14 // is loaded. 15 TEXT _rt0_amd64_darwin_lib(SB),NOSPLIT,$0x58 16 // Align stack. We don't know whether Go is adding a frame pointer here or not. 17 MOVQ SP, R8 18 SUBQ $16, R8 19 ANDQ $~15, R8 20 XCHGQ SP, R8 21 22 MOVQ R8, 0x48(SP) 23 MOVQ BX, 0x18(SP) 24 MOVQ BP, 0x20(SP) 25 MOVQ R12, 0x28(SP) 26 MOVQ R13, 0x30(SP) 27 MOVQ R14, 0x38(SP) 28 MOVQ R15, 0x40(SP) 29 30 MOVQ DI, _rt0_amd64_darwin_lib_argc<>(SB) 31 MOVQ SI, _rt0_amd64_darwin_lib_argv<>(SB) 32 33 // Synchronous initialization. 34 MOVQ $runtimelibpreinit(SB), AX 35 CALL AX 36 37 // Create a new thread to do the runtime initialization and return. 38 MOVQ _cgo_sys_thread_create(SB), AX 39 TESTQ AX, AX 40 JZ nocgo 41 MOVQ $_rt0_amd64_darwin_lib_go(SB), DI 42 MOVQ $0, SI 43 CALL AX 44 JMP restore 45 46 nocgo: 47 MOVQ $8388608, 0(SP) // stacksize 48 MOVQ $_rt0_amd64_darwin_lib_go(SB), AX 49 MOVQ AX, 8(SP) // fn 50 MOVQ $0, 16(SP) // fnarg 51 MOVQ $runtimenewosproc0(SB), AX 52 CALL AX 53 54 restore: 55 MOVQ 0x18(SP), BX 56 MOVQ 0x20(SP), BP 57 MOVQ 0x28(SP), R12 58 MOVQ 0x30(SP), R13 59 MOVQ 0x38(SP), R14 60 MOVQ 0x40(SP), R15 61 62 MOVQ 0x48(SP), R8 63 MOVQ R8, SP 64 RET 65 66 TEXT _rt0_amd64_darwin_lib_go(SB),NOSPLIT,$0 67 MOVQ _rt0_amd64_darwin_lib_argc<>(SB), DI 68 MOVQ _rt0_amd64_darwin_lib_argv<>(SB), SI 69 MOVQ $runtimert0_go(SB), AX 70 JMP AX 71 72 DATA _rt0_amd64_darwin_lib_argc<>(SB)/8, $0 73 GLOBL _rt0_amd64_darwin_lib_argc<>(SB),NOPTR, $8 74 DATA _rt0_amd64_darwin_lib_argv<>(SB)/8, $0 75 GLOBL _rt0_amd64_darwin_lib_argv<>(SB),NOPTR, $8 76 77 TEXT main(SB),NOSPLIT,$-8 78 MOVQ $runtimert0_go(SB), AX 79 JMP AX 80
