vendor dependencies, make some changes to how input is done

vendor/github.com/ebitengine/purego/internal/cgo/dlfcn_cgo_unix.go

@@ -0,0 +1,22 @@
+// SPDX-License-Identifier: Apache-2.0
+// SPDX-FileCopyrightText: 2024 The Ebitengine Authors
+
+//go:build freebsd || linux
+
+package cgo
+
+/*
+ #cgo LDFLAGS: -ldl
+
+#include <dlfcn.h>
+*/
+import "C"
+
+// all that is needed is to assign each dl function because then its
+// symbol will then be made available to the linker and linked to inside dlfcn.go
+var (
+	_ = C.dlopen
+	_ = C.dlsym
+	_ = C.dlerror
+	_ = C.dlclose
+)

vendor/github.com/ebitengine/purego/internal/cgo/empty.go

@@ -0,0 +1,6 @@
+// SPDX-License-Identifier: Apache-2.0
+// SPDX-FileCopyrightText: 2024 The Ebitengine Authors
+
+package cgo
+
+// Empty so that importing this package doesn't cause issue for certain platforms.

vendor/github.com/ebitengine/purego/internal/cgo/syscall_cgo_unix.go

@@ -0,0 +1,55 @@
+// SPDX-License-Identifier: Apache-2.0
+// SPDX-FileCopyrightText: 2022 The Ebitengine Authors
+
+//go:build freebsd || (linux && !(arm64 || amd64))
+
+package cgo
+
+// this file is placed inside internal/cgo and not package purego
+// because Cgo and assembly files can't be in the same package.
+
+/*
+ #cgo LDFLAGS: -ldl
+
+#include <stdint.h>
+#include <dlfcn.h>
+#include <errno.h>
+#include <assert.h>
+
+typedef struct syscall15Args {
+	uintptr_t fn;
+	uintptr_t a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13, a14, a15;
+	uintptr_t f1, f2, f3, f4, f5, f6, f7, f8;
+	uintptr_t r1, r2, err;
+} syscall15Args;
+
+void syscall15(struct syscall15Args *args) {
+	assert((args->f1|args->f2|args->f3|args->f4|args->f5|args->f6|args->f7|args->f8) == 0);
+	uintptr_t (*func_name)(uintptr_t a1, uintptr_t a2, uintptr_t a3, uintptr_t a4, uintptr_t a5, uintptr_t a6,
+		uintptr_t a7, uintptr_t a8, uintptr_t a9, uintptr_t a10, uintptr_t a11, uintptr_t a12,
+		uintptr_t a13, uintptr_t a14, uintptr_t a15);
+	*(void**)(&func_name) = (void*)(args->fn);
+	uintptr_t r1 =  func_name(args->a1,args->a2,args->a3,args->a4,args->a5,args->a6,args->a7,args->a8,args->a9,
+		args->a10,args->a11,args->a12,args->a13,args->a14,args->a15);
+	args->r1 = r1;
+	args->err = errno;
+}
+
+*/
+import "C"
+import "unsafe"
+
+// assign purego.syscall15XABI0 to the C version of this function.
+var Syscall15XABI0 = unsafe.Pointer(C.syscall15)
+
+//go:nosplit
+func Syscall15X(fn, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13, a14, a15 uintptr) (r1, r2, err uintptr) {
+	args := C.syscall15Args{
+		C.uintptr_t(fn), C.uintptr_t(a1), C.uintptr_t(a2), C.uintptr_t(a3),
+		C.uintptr_t(a4), C.uintptr_t(a5), C.uintptr_t(a6),
+		C.uintptr_t(a7), C.uintptr_t(a8), C.uintptr_t(a9), C.uintptr_t(a10), C.uintptr_t(a11), C.uintptr_t(a12),
+		C.uintptr_t(a13), C.uintptr_t(a14), C.uintptr_t(a15), 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	}
+	C.syscall15(&args)
+	return uintptr(args.r1), uintptr(args.r2), uintptr(args.err)
+}