| // 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 |
