1 // Copyright 2014 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 // +build linux 6 // +build ppc64 ppc64le 7 8 #include "textflag.h" 9 10 // 11 // System calls for ppc64, Linux 12 // 13 14 // func Syscall(trap int64, a1, a2, a3 int64) (r1, r2, err int64); 15 16 TEXT Syscall(SB),NOSPLIT,$0-56 17 BL runtimeentersyscall(SB) 18 MOVD a1+8(FP), R3 19 MOVD a2+16(FP), R4 20 MOVD a3+24(FP), R5 21 MOVD R0, R6 22 MOVD R0, R7 23 MOVD R0, R8 24 MOVD trap+0(FP), R9 // syscall entry 25 SYSCALL R9 26 BVC ok 27 MOVD $-1, R4 28 MOVD R4, r1+32(FP) // r1 29 MOVD R0, r2+40(FP) // r2 30 MOVD R3, err+48(FP) // errno 31 BL runtimeexitsyscall(SB) 32 RET 33 ok: 34 MOVD R3, r1+32(FP) // r1 35 MOVD R4, r2+40(FP) // r2 36 MOVD R0, err+48(FP) // errno 37 BL runtimeexitsyscall(SB) 38 RET 39 40 TEXT Syscall6(SB),NOSPLIT,$0-80 41 BL runtimeentersyscall(SB) 42 MOVD a1+8(FP), R3 43 MOVD a2+16(FP), R4 44 MOVD a3+24(FP), R5 45 MOVD a4+32(FP), R6 46 MOVD a5+40(FP), R7 47 MOVD a6+48(FP), R8 48 MOVD trap+0(FP), R9 // syscall entry 49 SYSCALL R9 50 BVC ok6 51 MOVD $-1, R4 52 MOVD R4, r1+56(FP) // r1 53 MOVD R0, r2+64(FP) // r2 54 MOVD R3, err+72(FP) // errno 55 BL runtimeexitsyscall(SB) 56 RET 57 ok6: 58 MOVD R3, r1+56(FP) // r1 59 MOVD R4, r2+64(FP) // r2 60 MOVD R0, err+72(FP) // errno 61 BL runtimeexitsyscall(SB) 62 RET 63 64 TEXT RawSyscall(SB),NOSPLIT,$0-56 65 MOVD a1+8(FP), R3 66 MOVD a2+16(FP), R4 67 MOVD a3+24(FP), R5 68 MOVD R0, R6 69 MOVD R0, R7 70 MOVD R0, R8 71 MOVD trap+0(FP), R9 // syscall entry 72 SYSCALL R9 73 BVC ok1 74 MOVD $-1, R4 75 MOVD R4, r1+32(FP) // r1 76 MOVD R0, r2+40(FP) // r2 77 MOVD R3, err+48(FP) // errno 78 RET 79 ok1: 80 MOVD R3, r1+32(FP) // r1 81 MOVD R4, r2+40(FP) // r2 82 MOVD R0, err+48(FP) // errno 83 RET 84 85 TEXT RawSyscall6(SB),NOSPLIT,$0-80 86 MOVD a1+8(FP), R3 87 MOVD a2+16(FP), R4 88 MOVD a3+24(FP), R5 89 MOVD a4+32(FP), R6 90 MOVD a5+40(FP), R7 91 MOVD a6+48(FP), R8 92 MOVD trap+0(FP), R9 // syscall entry 93 SYSCALL R9 94 BVC ok2 95 MOVD $-1, R4 96 MOVD R4, r1+56(FP) // r1 97 MOVD R0, r2+64(FP) // r2 98 MOVD R3, err+72(FP) // errno 99 RET 100 ok2: 101 MOVD R3, r1+56(FP) // r1 102 MOVD R4, r2+64(FP) // r2 103 MOVD R0, err+72(FP) // errno 104 RET 105
