| /* SPDX-License-Identifier: BSD-2-Clause */ |
| /* |
| * Copyright (c) 2019, Linaro Limited |
| */ |
| |
| #include <asm.S> |
| |
| #if defined(CFG_UNWIND) |
| #define UNWIND(...) __VA_ARGS__ |
| #else |
| #define UNWIND(...) |
| #endif |
| |
| /* |
| * This function is the bottom of the user call stack. Mark it as such so that |
| * the unwinding code won't try to go further down. |
| * We need an assembly wrapper because Clang does not accept asm(".cantunwind") |
| * in a C function: |
| * |
| * user_ta_header.c:44:6: error: .fnstart must precede .cantunwind directive |
| * asm(".cantunwind"); |
| * ^ |
| */ |
| FUNC __ta_entry, : |
| UNWIND( .fnstart) |
| UNWIND( .cantunwind) |
| bl __ta_entry_c |
| /* |
| * The nop makes the stack unwinding more clear (without it, |
| * symbolize.py may show a file/line outside the function). |
| */ |
| nop |
| UNWIND( .fnend) |
| END_FUNC __ta_entry |
