diff options
| author | Jeremie Courreges-Anglas <jca@cvs.openbsd.org> | 2021-09-17 08:17:43 +0000 |
|---|---|---|
| committer | Jeremie Courreges-Anglas <jca@cvs.openbsd.org> | 2021-09-17 08:17:43 +0000 |
| commit | a8ce551f6bb01100afb3c7ca03336979fc8a4aa6 (patch) | |
| tree | 4b6dbf6ec302d6a5463dc6549b1623b09d006d70 /gnu | |
| parent | 273dea9d5c2f3994fcb44301916138e97ea59009 (diff) | |
Implement __builtin_clear_cache() on riscv64
Fixes at least ports/devel/libffi as used by ports/lang/python/2.
ok kettenis@
Diffstat (limited to 'gnu')
| -rw-r--r-- | gnu/llvm/compiler-rt/lib/builtins/clear_cache.c | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/gnu/llvm/compiler-rt/lib/builtins/clear_cache.c b/gnu/llvm/compiler-rt/lib/builtins/clear_cache.c index 29e31f55d49..42532b74790 100644 --- a/gnu/llvm/compiler-rt/lib/builtins/clear_cache.c +++ b/gnu/llvm/compiler-rt/lib/builtins/clear_cache.c @@ -33,7 +33,7 @@ uintptr_t GetCurrentProcess(void); #include <machine/sysarch.h> #endif -#if defined(__OpenBSD__) && (defined(__arm__) || defined(__mips__)) +#if defined(__OpenBSD__) && (defined(__arm__) || defined(__mips__) || defined(__riscv)) // clang-format off #include <sys/types.h> #include <machine/sysarch.h> @@ -157,6 +157,13 @@ void __clear_cache(void *start, void *end) { : "=r"(start_reg) : "r"(start_reg), "r"(end_reg), "r"(flags), "r"(syscall_nr)); assert(start_reg == 0 && "Cache flush syscall failed."); +#elif defined(__riscv) && defined(__OpenBSD__) + struct riscv_sync_icache_args arg; + + arg.addr = (uintptr_t)start; + arg.len = (uintptr_t)end - (uintptr_t)start; + + sysarch(RISCV_SYNC_ICACHE, &arg); #else #if __APPLE__ // On Darwin, sys_icache_invalidate() provides this functionality |