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 ppc64 ppc64le 6 7 #include "textflag.h" 8 9 /* 10 * void crosscall2(void (*fn)(void*, int32), void*, int32) 11 * Save registers and call fn with two arguments. 12 * crosscall2 obeys the C ABI; fn obeys the Go ABI. 13 */ 14 TEXT crosscall2(SB),NOSPLIT,$-8 15 // TODO(austin): ABI v1 (fn is probably a function descriptor) 16 17 // Start with standard C stack frame layout and linkage 18 MOVD LR, R0 19 MOVD R0, 16(R1) // Save LR in caller's frame 20 MOVD R2, 24(R1) // Save TOC in caller's frame 21 22 BL saveregs2<>(SB) 23 24 MOVDU R1, (-288-3*8)(R1) 25 26 // Initialize Go ABI environment 27 BL runtimereginit(SB) 28 BL runtimeload_g(SB) 29 30 MOVD R3, CTR 31 MOVD R4, 8(R1) 32 MOVD R5, 16(R1) 33 BL (CTR) 34 35 ADD $(288+3*8), R1 36 37 BL restoreregs2<>(SB) 38 39 MOVD 24(R1), R2 40 MOVD 16(R1), R0 41 MOVD R0, LR 42 RET 43 44 TEXT saveregs2<>(SB),NOSPLIT,$-8 45 // O=-288; for R in R{14..31}; do echo "\tMOVD\t$R, $O(R1)"|sed s/R30/g/; ((O+=8)); done; for F in F{14..31}; do echo "\tFMOVD\t$F, $O(R1)"; ((O+=8)); done 46 MOVD R14, -288(R1) 47 MOVD R15, -280(R1) 48 MOVD R16, -272(R1) 49 MOVD R17, -264(R1) 50 MOVD R18, -256(R1) 51 MOVD R19, -248(R1) 52 MOVD R20, -240(R1) 53 MOVD R21, -232(R1) 54 MOVD R22, -224(R1) 55 MOVD R23, -216(R1) 56 MOVD R24, -208(R1) 57 MOVD R25, -200(R1) 58 MOVD R26, -192(R1) 59 MOVD R27, -184(R1) 60 MOVD R28, -176(R1) 61 MOVD R29, -168(R1) 62 MOVD g, -160(R1) 63 MOVD R31, -152(R1) 64 FMOVD F14, -144(R1) 65 FMOVD F15, -136(R1) 66 FMOVD F16, -128(R1) 67 FMOVD F17, -120(R1) 68 FMOVD F18, -112(R1) 69 FMOVD F19, -104(R1) 70 FMOVD F20, -96(R1) 71 FMOVD F21, -88(R1) 72 FMOVD F22, -80(R1) 73 FMOVD F23, -72(R1) 74 FMOVD F24, -64(R1) 75 FMOVD F25, -56(R1) 76 FMOVD F26, -48(R1) 77 FMOVD F27, -40(R1) 78 FMOVD F28, -32(R1) 79 FMOVD F29, -24(R1) 80 FMOVD F30, -16(R1) 81 FMOVD F31, -8(R1) 82 83 RET 84 85 TEXT restoreregs2<>(SB),NOSPLIT,$-8 86 // O=-288; for R in R{14..31}; do echo "\tMOVD\t$O(R1), $R"|sed s/R30/g/; ((O+=8)); done; for F in F{14..31}; do echo "\tFMOVD\t$O(R1), $F"; ((O+=8)); done 87 MOVD -288(R1), R14 88 MOVD -280(R1), R15 89 MOVD -272(R1), R16 90 MOVD -264(R1), R17 91 MOVD -256(R1), R18 92 MOVD -248(R1), R19 93 MOVD -240(R1), R20 94 MOVD -232(R1), R21 95 MOVD -224(R1), R22 96 MOVD -216(R1), R23 97 MOVD -208(R1), R24 98 MOVD -200(R1), R25 99 MOVD -192(R1), R26 100 MOVD -184(R1), R27 101 MOVD -176(R1), R28 102 MOVD -168(R1), R29 103 MOVD -160(R1), g 104 MOVD -152(R1), R31 105 FMOVD -144(R1), F14 106 FMOVD -136(R1), F15 107 FMOVD -128(R1), F16 108 FMOVD -120(R1), F17 109 FMOVD -112(R1), F18 110 FMOVD -104(R1), F19 111 FMOVD -96(R1), F20 112 FMOVD -88(R1), F21 113 FMOVD -80(R1), F22 114 FMOVD -72(R1), F23 115 FMOVD -64(R1), F24 116 FMOVD -56(R1), F25 117 FMOVD -48(R1), F26 118 FMOVD -40(R1), F27 119 FMOVD -32(R1), F28 120 FMOVD -24(R1), F29 121 FMOVD -16(R1), F30 122 FMOVD -8(R1), F31 123 124 RET 125
