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[compiler-rt] Implement __clear_cache() on OpenBSD/riscv64

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Jeremie Courreges-Anglas 2021-09-17 15:15:46 -04:00 committed by Brad Smith
parent 5a6c38fbef
commit 3db9590605
1 changed files with 8 additions and 1 deletions
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9
compiler-rt/lib/builtins/clear_cache.c
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@ -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