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// Copyright 2023 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 R4 #define RARG1 R5 #define RARG2 R6 #define FARG R7 // func runtime·domsanread(addr unsafe.Pointer, sz uintptr) // Called from msanread. TEXT runtime·domsanread(SB), NOSPLIT, $0-16 MOVV addr+0(FP), RARG0 MOVV sz+8(FP), RARG1 // void __msan_read_go(void *addr, uintptr_t sz); MOVV $__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 MOVV addr+0(FP), RARG0 MOVV sz+8(FP), RARG1 // void __msan_write_go(void *addr, uintptr_t sz); MOVV $__msan_write_go(SB), FARG JMP msancall<>(SB) // func runtime·msanmalloc(addr unsafe.Pointer, sz uintptr) TEXT runtime·msanmalloc(SB), NOSPLIT, $0-16 MOVV addr+0(FP), RARG0 MOVV sz+8(FP), RARG1 // void __msan_malloc_go(void *addr, uintptr_t sz); MOVV $__msan_malloc_go(SB), FARG JMP msancall<>(SB) // func runtime·msanfree(addr unsafe.Pointer, sz uintptr) TEXT runtime·msanfree(SB), NOSPLIT, $0-16 MOVV addr+0(FP), RARG0 MOVV sz+8(FP), RARG1 // void __msan_free_go(void *addr, uintptr_t sz); MOVV $__msan_free_go(SB), FARG JMP msancall<>(SB) // func runtime·msanmove(dst, src unsafe.Pointer, sz uintptr) TEXT runtime·msanmove(SB), NOSPLIT, $0-24 MOVV dst+0(FP), RARG0 MOVV src+8(FP), RARG1 MOVV sz+16(FP), RARG2 // void __msan_memmove(void *dst, void *src, uintptr_t sz); MOVV $__msan_memmove(SB), FARG JMP msancall<>(SB) // Switches SP to g0 stack and calls (FARG). Arguments already set. TEXT msancall<>(SB), NOSPLIT, $0-0 MOVV R3, R23 // callee-saved BEQ g, g0stack // no g, still on a system stack MOVV g_m(g), R14 MOVV m_g0(R14), R15 BEQ R15, g, g0stack MOVV (g_sched+gobuf_sp)(R15), R9 MOVV R9, R3 g0stack: JAL (FARG) MOVV R23, R3 RET