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Editing: msan_arm64.s
// Copyright 2018 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. //go:build msan #include "go_asm.h" #include "textflag.h" #define RARG0 R0 #define RARG1 R1 #define RARG2 R2 #define FARG R3 // func runtime·domsanread(addr unsafe.Pointer, sz uintptr) // Called from msanread. TEXT runtime·domsanread(SB), NOSPLIT, $0-16 MOVD addr+0(FP), RARG0 MOVD sz+8(FP), RARG1 // void __msan_read_go(void *addr, uintptr_t sz); MOVD $__msan_read_go(SB), FARG JMP msancall<>(SB) // func runtime·msanwrite(addr unsafe.Pointer, sz uintptr) // Called from instrumented code. TEXT runtime·msanwrite(SB), NOSPLIT, $0-16 MOVD addr+0(FP), RARG0 MOVD sz+8(FP), RARG1 // void __msan_write_go(void *addr, uintptr_t sz); MOVD $__msan_write_go(SB), FARG JMP msancall<>(SB) // func runtime·msanmalloc(addr unsafe.Pointer, sz uintptr) TEXT runtime·msanmalloc(SB), NOSPLIT, $0-16 MOVD addr+0(FP), RARG0 MOVD sz+8(FP), RARG1 // void __msan_malloc_go(void *addr, uintptr_t sz); MOVD $__msan_malloc_go(SB), FARG JMP msancall<>(SB) // func runtime·msanfree(addr unsafe.Pointer, sz uintptr) TEXT runtime·msanfree(SB), NOSPLIT, $0-16 MOVD addr+0(FP), RARG0 MOVD sz+8(FP), RARG1 // void __msan_free_go(void *addr, uintptr_t sz); MOVD $__msan_free_go(SB), FARG JMP msancall<>(SB) // func runtime·msanmove(dst, src unsafe.Pointer, sz uintptr) TEXT runtime·msanmove(SB), NOSPLIT, $0-24 MOVD dst+0(FP), RARG0 MOVD src+8(FP), RARG1 MOVD sz+16(FP), RARG2 // void __msan_memmove(void *dst, void *src, uintptr_t sz); MOVD $__msan_memmove(SB), FARG JMP msancall<>(SB) // Switches SP to g0 stack and calls (FARG). Arguments already set. TEXT msancall<>(SB), NOSPLIT, $0-0 MOVD RSP, R19 // callee-saved CBZ g, g0stack // no g, still on a system stack MOVD g_m(g), R10 MOVD m_g0(R10), R11 CMP R11, g BEQ g0stack MOVD (g_sched+gobuf_sp)(R11), R4 MOVD R4, RSP g0stack: BL (FARG) MOVD R19, RSP RET
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