1 // Copyright 2020 The Pigweed Authors
2 //
3 // Licensed under the Apache License, Version 2.0 (the "License"); you may not
4 // use this file except in compliance with the License. You may obtain a copy of
5 // the License at
6 //
7 // https://www.apache.org/licenses/LICENSE-2.0
8 //
9 // Unless required by applicable law or agreed to in writing, software
10 // distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
11 // WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
12 // License for the specific language governing permissions and limitations under
13 // the License.
14
15 // This symbol is defined by the linker script. If the linker script is not
16 // correctly used, this will be missing.
17 extern int _linker_defined_symbol;
18
19 // This file is intentionally very simple and is used only to test that the
20 // linker script generator works as expected.
main()21 int main() {
22 volatile int linker_defined_pointer = _linker_defined_symbol;
23 return 0;
24 }
25
26 // Stub to silence linker warning about this symbol missing.
pw_boot_Entry()27 extern "C" void pw_boot_Entry() { main(); }
28