| // Copyright 2012 The Go Authors. All rights reserved. | |
| // Use of this source code is governed by a BSD-style | |
| // license that can be found in the LICENSE file. | |
| #include "../../../cmd/ld/textflag.h" | |
| /* | |
| * void crosscall2(void (*fn)(void*, int32), void*, int32) | |
| * Save registers and call fn with two arguments. | |
| */ | |
| TEXT crosscall2(SB),NOSPLIT,$-4 | |
| /* | |
| * We still need to save all callee save register as before, and then | |
| * push 2 args for fn (R1 and R2). | |
| * Also note that at procedure entry in 5c/5g world, 4(R13) will be the | |
| * first arg, so we must push another dummy reg (R0) for 0(R13). | |
| * Additionally, runtime·load_gm will clobber R0, so we need to save R0 | |
| * nevertheless. | |
| */ | |
| MOVM.WP [R0, R1, R2, R4, R5, R6, R7, R8, m, g, R11, R12, R14], (R13) | |
| BL runtime·load_gm(SB) | |
| MOVW PC, R14 | |
| MOVW 0(R13), PC | |
| MOVM.IAW (R13), [R0, R1, R2, R4, R5, R6, R7, R8, m, g, R11, R12, PC] |