From fa046601a54ddf2137048f11594ed7d72ede995a Mon Sep 17 00:00:00 2001 From: Gareth McMullin Date: Sat, 28 Feb 2015 20:50:10 -0800 Subject: Add exception handling mechanism and raise exception on low-level comms failure. --- src/exception.c | 39 +++++++++++++++++++++++++++++++++++++++ 1 file changed, 39 insertions(+) create mode 100644 src/exception.c (limited to 'src/exception.c') diff --git a/src/exception.c b/src/exception.c new file mode 100644 index 0000000..33e3869 --- /dev/null +++ b/src/exception.c @@ -0,0 +1,39 @@ +/* + * This file is part of the Black Magic Debug project. + * + * Copyright (C) 2015 Black Sphere Technologies Ltd. + * Written by Gareth McMullin + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see . + */ + +#include "general.h" +#include "exception.h" + +struct exception *innermost_exception; + +void raise_exception(uint32_t type, const char *msg) +{ + struct exception *e; + for (e = innermost_exception; e; e = e->outer) { + if (e->mask & type) { + e->type = type; + e->msg = msg; + innermost_exception = e->outer; + longjmp(e->jmpbuf, type); + } + } + PLATFORM_FATAL_ERROR(type); +} + -- cgit v1.2.3