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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`.
26 lines
892 B
Zig
26 lines
892 B
Zig
const common = @import("./common.zig");
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const truncf = @import("./truncf.zig").truncf;
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pub const panic = common.panic;
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comptime {
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if (common.gnu_f16_abi) {
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@export(__gnu_f2h_ieee, .{ .name = "__gnu_f2h_ieee", .linkage = common.linkage, .visibility = common.visibility });
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} else if (common.want_aeabi) {
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@export(__aeabi_f2h, .{ .name = "__aeabi_f2h", .linkage = common.linkage, .visibility = common.visibility });
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}
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@export(__truncsfhf2, .{ .name = "__truncsfhf2", .linkage = common.linkage, .visibility = common.visibility });
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}
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pub fn __truncsfhf2(a: f32) callconv(.C) common.F16T {
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return @bitCast(common.F16T, truncf(f16, f32, a));
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}
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fn __gnu_f2h_ieee(a: f32) callconv(.C) common.F16T {
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return @bitCast(common.F16T, truncf(f16, f32, a));
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}
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fn __aeabi_f2h(a: f32) callconv(.AAPCS) u16 {
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return @bitCast(common.F16T, truncf(f16, f32, a));
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}
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