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// Copyright 2022 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 asan
#include "go_asm.h"
#include "textflag.h"
// Called from instrumented code.
// func runtime·doasanread(addr unsafe.Pointer, sz, sp, pc uintptr)
TEXT runtime·doasanread(SB), NOSPLIT, $0-32
MOV addr+0(FP), X10
MOV sz+8(FP), X11
MOV sp+16(FP), X12
MOV pc+24(FP), X13
// void __asan_read_go(void *addr, uintptr_t sz);
MOV $__asan_read_go(SB), X14
JMP asancall<>(SB)
// func runtime·doasanwrite(addr unsafe.Pointer, sz, sp, pc uintptr)
TEXT runtime·doasanwrite(SB), NOSPLIT, $0-32
MOV addr+0(FP), X10
MOV sz+8(FP), X11
MOV sp+16(FP), X12
MOV pc+24(FP), X13
// void __asan_write_go(void *addr, uintptr_t sz);
MOV $__asan_write_go(SB), X14
JMP asancall<>(SB)
// func runtime·asanunpoison(addr unsafe.Pointer, sz uintptr)
TEXT runtime·asanunpoison(SB), NOSPLIT, $0-16
MOV addr+0(FP), X10
MOV sz+8(FP), X11
// void __asan_unpoison_go(void *addr, uintptr_t sz);
MOV $__asan_unpoison_go(SB), X14
JMP asancall<>(SB)
// func runtime·asanpoison(addr unsafe.Pointer, sz uintptr)
TEXT runtime·asanpoison(SB), NOSPLIT, $0-16
MOV addr+0(FP), X10
MOV sz+8(FP), X11
// void __asan_poison_go(void *addr, uintptr_t sz);
MOV $__asan_poison_go(SB), X14
JMP asancall<>(SB)
// func runtime·asanregisterglobals(addr unsafe.Pointer, n uintptr)
TEXT runtime·asanregisterglobals(SB), NOSPLIT, $0-16
MOV addr+0(FP), X10
MOV n+8(FP), X11
// void __asan_register_globals_go(void *addr, uintptr_t n);
MOV $__asan_register_globals_go(SB), X14
JMP asancall<>(SB)
// Switches SP to g0 stack and calls (X14). Arguments already set.
TEXT asancall<>(SB), NOSPLIT, $0-0
MOV X2, X8 // callee-saved
BEQZ g, g0stack // no g, still on a system stack
MOV g_m(g), X21
MOV m_g0(X21), X21
BEQ X21, g, g0stack
MOV (g_sched+gobuf_sp)(X21), X2
g0stack:
JALR RA, X14
MOV X8, X2
RET
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