mirror of
https://github.com/ziglang/zig.git
synced 2024-11-27 15:42:49 +00:00
30f2bb8464
When we're compiling compiler_rt for any WebAssembly target, we do not want to expose all the compiler-rt functions to the host runtime. By setting the visibility of all exports to `hidden`, we allow the linker to resolve the symbols during linktime, while not expose the functions to the host runtime. This also means the linker can properly garbage collect any compiler-rt function that does not get resolved. The symbol visibility for all target remains the same as before: `default`.
22 lines
707 B
Zig
22 lines
707 B
Zig
const builtin = @import("builtin");
|
|
const common = @import("./common.zig");
|
|
const intToFloat = @import("./int_to_float.zig").intToFloat;
|
|
|
|
pub const panic = common.panic;
|
|
|
|
comptime {
|
|
if (common.want_windows_v2u64_abi) {
|
|
@export(__floatuntidf_windows_x86_64, .{ .name = "__floatuntidf", .linkage = common.linkage, .visibility = common.visibility });
|
|
} else {
|
|
@export(__floatuntidf, .{ .name = "__floatuntidf", .linkage = common.linkage, .visibility = common.visibility });
|
|
}
|
|
}
|
|
|
|
pub fn __floatuntidf(a: u128) callconv(.C) f64 {
|
|
return intToFloat(f64, a);
|
|
}
|
|
|
|
fn __floatuntidf_windows_x86_64(a: @Vector(2, u64)) callconv(.C) f64 {
|
|
return intToFloat(f64, @bitCast(u128, a));
|
|
}
|