diff options
| author | Jeremie Courreges-Anglas <jca@wxcvbn.org> | 2021-09-17 15:15:46 -0400 |
|---|---|---|
| committer | Tom Stellard <tstellar@redhat.com> | 2021-09-17 20:54:32 -0700 |
| commit | 6a5ccb2ec43887dba71b5ba6a9a035b18e619ad6 (patch) | |
| tree | 2778511f6a2274ec9f3462f51d1c0d8dc92f3180 | |
| parent | 6aa054242d60f7cf9512d927ebf7ca2289115ecd (diff) | |
| download | llvm-6a5ccb2ec43887dba71b5ba6a9a035b18e619ad6.tar.gz | |
[compiler-rt] Implement __clear_cache() on OpenBSD/riscv64
(cherry picked from commit 3db959060546eef76b90733ccde80c75576a97ad)
| -rw-r--r-- | compiler-rt/lib/builtins/clear_cache.c | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/compiler-rt/lib/builtins/clear_cache.c b/compiler-rt/lib/builtins/clear_cache.c index 3c12b74e8fa6..da0715914b41 100644 --- a/compiler-rt/lib/builtins/clear_cache.c +++ b/compiler-rt/lib/builtins/clear_cache.c @@ -35,7 +35,7 @@ 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> @@ -166,6 +166,13 @@ 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 |