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Diffstat (limited to '')
| -rw-r--r-- | src/runtime/asan_loong64.s | 75 |
1 files changed, 75 insertions, 0 deletions
diff --git a/src/runtime/asan_loong64.s b/src/runtime/asan_loong64.s new file mode 100644 index 0000000..0034a31 --- /dev/null +++ b/src/runtime/asan_loong64.s @@ -0,0 +1,75 @@ +// 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 asan + +#include "go_asm.h" +#include "textflag.h" + +#define RARG0 R4 +#define RARG1 R5 +#define RARG2 R6 +#define RARG3 R7 +#define FARG R8 + +// Called from instrumented code. +// func runtime·doasanread(addr unsafe.Pointer, sz, sp, pc uintptr) +TEXT runtime·doasanread(SB), NOSPLIT, $0-32 + MOVV addr+0(FP), RARG0 + MOVV sz+8(FP), RARG1 + MOVV sp+16(FP), RARG2 + MOVV pc+24(FP), RARG3 + // void __asan_read_go(void *addr, uintptr_t sz, void *sp, void *pc); + MOVV $__asan_read_go(SB), FARG + JMP asancall<>(SB) + +// func runtime·doasanwrite(addr unsafe.Pointer, sz, sp, pc uintptr) +TEXT runtime·doasanwrite(SB), NOSPLIT, $0-32 + MOVV addr+0(FP), RARG0 + MOVV sz+8(FP), RARG1 + MOVV sp+16(FP), RARG2 + MOVV pc+24(FP), RARG3 + // void __asan_write_go(void *addr, uintptr_t sz, void *sp, void *pc); + MOVV $__asan_write_go(SB), FARG + JMP asancall<>(SB) + +// func runtime·asanunpoison(addr unsafe.Pointer, sz uintptr) +TEXT runtime·asanunpoison(SB), NOSPLIT, $0-16 + MOVV addr+0(FP), RARG0 + MOVV sz+8(FP), RARG1 + // void __asan_unpoison_go(void *addr, uintptr_t sz); + MOVV $__asan_unpoison_go(SB), FARG + JMP asancall<>(SB) + +// func runtime·asanpoison(addr unsafe.Pointer, sz uintptr) +TEXT runtime·asanpoison(SB), NOSPLIT, $0-16 + MOVV addr+0(FP), RARG0 + MOVV sz+8(FP), RARG1 + // void __asan_poison_go(void *addr, uintptr_t sz); + MOVV $__asan_poison_go(SB), FARG + JMP asancall<>(SB) + +// func runtime·asanregisterglobals(addr unsafe.Pointer, n uintptr) +TEXT runtime·asanregisterglobals(SB), NOSPLIT, $0-16 + MOVV addr+0(FP), RARG0 + MOVV n+8(FP), RARG1 + // void __asan_register_globals_go(void *addr, uintptr_t n); + MOVV $__asan_register_globals_go(SB), FARG + JMP asancall<>(SB) + +// Switches SP to g0 stack and calls (FARG). Arguments already set. +TEXT asancall<>(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 |