| ... | ... | @@ -26,6 +26,10 @@ pub fn clear_cache(start: usize, end: usize) callconv(.C) void { |
| 26 | 26 | .mips, .mipsel, .mips64, .mips64el => true, |
| 27 | 27 | else => false, |
| 28 | 28 | }; |
| 29 | const riscv = switch (arch) { |
| 30 | .riscv32, .riscv64 => true, |
| 31 | else => false, |
| 32 | }; |
| 29 | 33 | const powerpc64 = switch (arch) { |
| 30 | 34 | .powerpc64, .powerpc64le => true, |
| 31 | 35 | else => false, |
| ... | ... | @@ -45,28 +49,31 @@ pub fn clear_cache(start: usize, end: usize) callconv(.C) void { |
| 45 | 49 | @compileError("TODO"); |
| 46 | 50 | // FlushInstructionCache(GetCurrentProcess(), start, end - start); |
| 47 | 51 | } else if (arm32 and !apple) { |
| 48 | | if (os == .freebsd or os == .netbsd) { |
| 49 | | // struct arm_sync_icache_args arg; |
| 50 | | // |
| 51 | | // arg.addr = (uintptr_t)start; |
| 52 | | // arg.len = (uintptr_t)end - (uintptr_t)start; |
| 53 | | // |
| 54 | | // sysarch(ARM_SYNC_ICACHE, &arg); |
| 55 | | @compileError("TODO: implement for NetBSD/FreeBSD"); |
| 56 | | } else if (os == .linux) { |
| 57 | | const result = std.os.linux.syscall3(.cacheflush, start, end, 0); |
| 58 | | std.debug.assert(result == 0); |
| 59 | | } else { |
| 60 | | @compileError("no __clear_cache implementation available for this target"); |
| 52 | switch (os) { |
| 53 | .freebsd, .netbsd => { |
| 54 | var arg = arm_sync_icache_args{ |
| 55 | .addr = start, |
| 56 | .len = end - start, |
| 57 | }; |
| 58 | const result = sysarch(ARM_SYNC_ICACHE, @ptrToInt(&arg)); |
| 59 | std.debug.assert(result == 0); |
| 60 | }, |
| 61 | .linux => { |
| 62 | const result = std.os.linux.syscall3(.cacheflush, start, end, 0); |
| 63 | std.debug.assert(result == 0); |
| 64 | }, |
| 65 | else => @compileError("TODO"), |
| 61 | 66 | } |
| 62 | 67 | } else if (os == .linux and mips) { |
| 63 | | @compileError("TODO"); |
| 64 | | //const uintptr_t start_int = (uintptr_t)start; |
| 65 | | //const uintptr_t end_int = (uintptr_t)end; |
| 66 | | //syscall(__NR_cacheflush, start, (end_int - start_int), BCACHE); |
| 68 | const flags = 3; // ICACHE | DCACHE |
| 69 | const result = std.os.linux.syscall3(std.os.linux.SYS_cacheflush, start, end - start, flags); |
| 70 | std.debug.assert(result == 0); |
| 67 | 71 | } else if (mips and os == .openbsd) { |
| 68 | 72 | @compileError("TODO"); |
| 69 | 73 | //cacheflush(start, (uintptr_t)end - (uintptr_t)start, BCACHE); |
| 74 | } else if (os == .linux and riscv) { |
| 75 | const result = std.os.linux.syscall3(std.os.linux.SYS_riscv_flush_icache, start, end - start, 0); |
| 76 | std.debug.assert(result == 0); |
| 70 | 77 | } else if (arm64 and !apple) { |
| 71 | 78 | // Get Cache Type Info. |
| 72 | 79 | // TODO memoize this? |
| ... | ... | @@ -142,3 +149,10 @@ pub fn clear_cache(start: usize, end: usize) callconv(.C) void { |
| 142 | 149 | |
| 143 | 150 | // Darwin-only |
| 144 | 151 | extern fn sys_icache_invalidate(start: usize, len: usize) void; |
| 152 | // BSD-only |
| 153 | const arm_sync_icache_args = extern struct { |
| 154 | addr: usize, // Virtual start address |
| 155 | len: usize, // Region size |
| 156 | }; |
| 157 | const ARM_SYNC_ICACHE = 0; |
| 158 | extern "c" fn sysarch(number: i32, args: usize) i32; |
LemonBoy <thatlemon@gmail.com> 2020-03-31 12:40:28+02:00
Andrew Kelley <andrew@ziglang.org> 2020-03-31 10:36:12-04:00
Commit is signed but in an unrecognized format.
lib