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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
877 B
Zig
26 lines
877 B
Zig
const common = @import("./common.zig");
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const extendf = @import("./extendf.zig").extendf;
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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_h2f_ieee, .{ .name = "__gnu_h2f_ieee", .linkage = common.linkage, .visibility = common.visibility });
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} else if (common.want_aeabi) {
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@export(__aeabi_h2f, .{ .name = "__aeabi_h2f", .linkage = common.linkage, .visibility = common.visibility });
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}
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@export(__extendhfsf2, .{ .name = "__extendhfsf2", .linkage = common.linkage, .visibility = common.visibility });
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}
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pub fn __extendhfsf2(a: common.F16T) callconv(.C) f32 {
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return extendf(f32, f16, @bitCast(u16, a));
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}
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fn __gnu_h2f_ieee(a: common.F16T) callconv(.C) f32 {
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return extendf(f32, f16, @bitCast(u16, a));
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}
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fn __aeabi_h2f(a: u16) callconv(.AAPCS) f32 {
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return extendf(f32, f16, @bitCast(u16, a));
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}
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