getauxval

pub const getauxval = if (extern_getauxval) struct {
    comptime {
        const root = @import("root");
        // Export this only when building an executable, otherwise it is overriding
        // the libc implementation
        if (builtin.output_mode == .Exe or @hasDecl(root, "main")) {
            @export(&getauxvalImpl, .{ .name = "getauxval", .linkage = .weak });
        }
    }
    extern fn getauxval(index: usize) usize;
}.getauxval else getauxvalImpl