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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`.
23 lines
726 B
Zig
23 lines
726 B
Zig
const builtin = @import("builtin");
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const common = @import("./common.zig");
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const floatToInt = @import("./float_to_int.zig").floatToInt;
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pub const panic = common.panic;
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comptime {
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if (common.want_windows_v2u64_abi) {
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@export(__fixunsdfti_windows_x86_64, .{ .name = "__fixunsdfti", .linkage = common.linkage, .visibility = common.visibility });
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} else {
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@export(__fixunsdfti, .{ .name = "__fixunsdfti", .linkage = common.linkage, .visibility = common.visibility });
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}
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}
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pub fn __fixunsdfti(a: f64) callconv(.C) u128 {
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return floatToInt(u128, a);
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}
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const v2u64 = @Vector(2, u64);
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fn __fixunsdfti_windows_x86_64(a: f64) callconv(.C) v2u64 {
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return @bitCast(v2u64, floatToInt(u128, a));
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}
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