| author |  Andrew Kelley <andrew@ziglang.org> 2020-03-30 23:15:07-04:00 |
| committer | Andrew Kelley <andrew@ziglang.org> 2020-03-30 23:15:07-04:00 |
| log | 83ff94b1cc761a4f8a222314b26700b13de100a9 |
| tree | b0ae675a8fbd2e8dc69895ffb5168cd693e25611 |
| parent | f6f03cd90f5c0a8cce7981b16f384b088f41c319 |
| signature |  Commit is signed but in an unrecognized format. |
compiler-rt: don't export __clear_cache when no impl available
2 files changed, 24 insertions(+), 10 deletions(-)
lib- std
- special
- compiler_rt.zig
- compiler_rt
lib/std/special/compiler_rt.zig+22-3
| ... | ... | @@ -10,10 +10,29 @@ comptime { |
| 10 | 10 | const strong_linkage = if (is_test) builtin.GlobalLinkage.Internal else builtin.GlobalLinkage.Strong; |
| 11 | 11 | |
| 12 | 12 | switch (builtin.arch) { |
| 13 | .i386, .x86_64 => @export(@import("compiler_rt/stack_probe.zig").zig_probe_stack, .{ .name = "__zig_probe_stack", .linkage = linkage }), | |
| 14 | .aarch64, .aarch64_be, .aarch64_32, .arm, .armeb, .thumb, .thumbeb => { | |
| 15 | @export(@import("compiler_rt/clear_cache.zig").clear_cache, .{ .name = "__clear_cache", .linkage = linkage }); | |
| 13 | .i386, | |
| 14 | .x86_64, | |
| 15 | => @export(@import("compiler_rt/stack_probe.zig").zig_probe_stack, .{ | |
| 16 | .name = "__zig_probe_stack", | |
| 17 | .linkage = linkage, | |
| 18 | }), | |
| 19 | ||
| 20 | .aarch64, | |
| 21 | .aarch64_be, | |
| 22 | .aarch64_32, | |
| 23 | => @export(@import("compiler_rt/clear_cache.zig").clear_cache, .{ | |
| 24 | .name = "__clear_cache", | |
| 25 | .linkage = linkage, | |
| 26 | }), | |
| 27 | ||
| 28 | .arm, .armeb, .thumb, .thumbeb => switch (builtin.os.tag) { | |
| 29 | .linux => @export(@import("compiler_rt/clear_cache.zig").clear_cache, .{ | |
| 30 | .name = "__clear_cache", | |
| 31 | .linkage = linkage, | |
| 32 | }), | |
| 33 | else => {}, | |
| 16 | 34 | }, |
| 35 | ||
| 17 | 36 | else => {}, |
| 18 | 37 | } |
| 19 | 38 |
lib/std/special/compiler_rt/clear_cache.zig+2-7
| ... | ... | @@ -54,15 +54,10 @@ pub fn clear_cache(start: usize, end: usize) callconv(.C) void { |
| 54 | 54 | // sysarch(ARM_SYNC_ICACHE, &arg); |
| 55 | 55 | @compileError("TODO: implement for NetBSD/FreeBSD"); |
| 56 | 56 | } else if (os == .linux) { |
| 57 | const result = std.os.linux.syscall3( | |
| 58 | std.os.linux.SYS_cacheflush, | |
| 59 | start, | |
| 60 | end, | |
| 61 | 0, | |
| 62 | ); | |
| 57 | const result = std.os.linux.syscall3(std.os.linux.SYS_cacheflush, start, end, 0); | |
| 63 | 58 | std.debug.assert(result == 0); |
| 64 | 59 | } else { |
| 65 | @compileError("compilerrt_abort"); | |
| 60 | @compileError("no __clear_cache implementation available for this target"); | |
| 66 | 61 | } |
| 67 | 62 | } else if (os == .linux and mips) { |
| 68 | 63 | @compileError("TODO"); |