mirror of https://go.googlesource.com/go
69 lines
1.9 KiB
ArmAsm
69 lines
1.9 KiB
ArmAsm
// Copyright 2022 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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//go:build asan
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#include "go_asm.h"
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#include "textflag.h"
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// Called from instrumented code.
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// func runtime·doasanread(addr unsafe.Pointer, sz, sp, pc uintptr)
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TEXT runtime·doasanread(SB), NOSPLIT, $0-32
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MOV addr+0(FP), X10
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MOV sz+8(FP), X11
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MOV sp+16(FP), X12
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MOV pc+24(FP), X13
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// void __asan_read_go(void *addr, uintptr_t sz);
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MOV $__asan_read_go(SB), X14
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JMP asancall<>(SB)
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// func runtime·doasanwrite(addr unsafe.Pointer, sz, sp, pc uintptr)
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TEXT runtime·doasanwrite(SB), NOSPLIT, $0-32
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MOV addr+0(FP), X10
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MOV sz+8(FP), X11
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MOV sp+16(FP), X12
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MOV pc+24(FP), X13
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// void __asan_write_go(void *addr, uintptr_t sz);
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MOV $__asan_write_go(SB), X14
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JMP asancall<>(SB)
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// func runtime·asanunpoison(addr unsafe.Pointer, sz uintptr)
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TEXT runtime·asanunpoison(SB), NOSPLIT, $0-16
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MOV addr+0(FP), X10
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MOV sz+8(FP), X11
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// void __asan_unpoison_go(void *addr, uintptr_t sz);
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MOV $__asan_unpoison_go(SB), X14
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JMP asancall<>(SB)
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// func runtime·asanpoison(addr unsafe.Pointer, sz uintptr)
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TEXT runtime·asanpoison(SB), NOSPLIT, $0-16
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MOV addr+0(FP), X10
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MOV sz+8(FP), X11
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// void __asan_poison_go(void *addr, uintptr_t sz);
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MOV $__asan_poison_go(SB), X14
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JMP asancall<>(SB)
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// func runtime·asanregisterglobals(addr unsafe.Pointer, n uintptr)
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TEXT runtime·asanregisterglobals(SB), NOSPLIT, $0-16
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MOV addr+0(FP), X10
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MOV n+8(FP), X11
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// void __asan_register_globals_go(void *addr, uintptr_t n);
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MOV $__asan_register_globals_go(SB), X14
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JMP asancall<>(SB)
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// Switches SP to g0 stack and calls (X14). Arguments already set.
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TEXT asancall<>(SB), NOSPLIT, $0-0
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MOV X2, X8 // callee-saved
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BEQZ g, g0stack // no g, still on a system stack
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MOV g_m(g), X21
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MOV m_g0(X21), X21
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BEQ X21, g, g0stack
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MOV (g_sched+gobuf_sp)(X21), X2
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g0stack:
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JALR RA, X14
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MOV X8, X2
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RET
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