diff options
Diffstat (limited to 'clib/src/exception.c')
| -rw-r--r-- | clib/src/exception.c | 152 |
1 files changed, 0 insertions, 152 deletions
diff --git a/clib/src/exception.c b/clib/src/exception.c deleted file mode 100644 index 747bb7d..0000000 --- a/clib/src/exception.c +++ /dev/null @@ -1,152 +0,0 @@ -/* IBM_PROLOG_BEGIN_TAG */ -/* This is an automatically generated prolog. */ -/* */ -/* $Source: clib/src/exception.c $ */ -/* */ -/* OpenPOWER FFS Project */ -/* */ -/* Contributors Listed Below - COPYRIGHT 2014,2015 */ -/* [+] International Business Machines Corp. */ -/* */ -/* */ -/* Licensed under the Apache License, Version 2.0 (the "License"); */ -/* you may not use this file except in compliance with the License. */ -/* You may obtain a copy of the License at */ -/* */ -/* http://www.apache.org/licenses/LICENSE-2.0 */ -/* */ -/* Unless required by applicable law or agreed to in writing, software */ -/* distributed under the License is distributed on an "AS IS" BASIS, */ -/* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or */ -/* implied. See the License for the specific language governing */ -/* permissions and limitations under the License. */ -/* */ -/* IBM_PROLOG_END_TAG */ - -/* - * File: exc.c - * Author: Shaun Wetzstein <shaun@us.ibm.com> - * Descr: {set,long}jmp implementation of exceptions for C code. - * Note: using these macros will create an exception context - * in each thread. - * Date: 7/06/09 - */ - -#include <errno.h> -#include <assert.h> -#include <pthread.h> -#include <stdio.h> -#include <stdarg.h> -#include <execinfo.h> - -#include "exception.h" -#include "misc.h" - -/* =======================================================================*/ - -const char *exception_name[] = { - "assertion", - "unexpected", - "errno", -}; - -typedef struct exception_context { - pthread_once_t once; - pthread_key_t key; -} exception_context; - -/* =======================================================================*/ - -static exception_context __exc_ctx = { PTHREAD_ONCE_INIT, 0 }; - -static inline void __exc_key_create(void) -{ - if (pthread_key_create(&__exc_ctx.key, NULL)) - __exc_throw(ASSERTION, NULL, 0, __FILE__, __LINE__); -} - -/* =======================================================================*/ - -void __exc_init(void) -{ - if (pthread_once(&__exc_ctx.once, __exc_key_create)) - __exc_throw(ASSERTION, NULL, 0, __FILE__, __LINE__); -} - -exception_frame_t *__exc_get_frame(void) -{ - return (exception_frame_t *) (pthread_getspecific(__exc_ctx.key)); -} - -void __exc_set_frame(exception_frame_t * f) -{ - if (pthread_setspecific(__exc_ctx.key, f)) - __exc_throw(ASSERTION, NULL, 0, __FILE__, __LINE__); -} - -void __exc_backtrace(const char *fmt, ...) -{ - if (fmt != NULL) { - va_list va; - va_start(va, fmt); - vfprintf(stderr, fmt, va); - va_end(va); - } - - fprintf(stderr, "========== backtrace ==========\n"); - void *bt[1024]; - int nr = backtrace(bt, sizeof bt); - backtrace_symbols_fd(bt, nr, fileno(stderr)); - fprintf(stderr, "========== backtrace ==========\n"); -} - -int __exc_throw(int ex, void *data, int size, const char *file, int line) -{ - extern char *program_invocation_short_name; - - exception_frame_t *frame = __exc_get_frame(); - - if (frame == NULL) { - __exc_backtrace - ("*** UNHANDLED EXCEPTION *** -- %s: %s(%d) ex=%d\n\n", - program_invocation_short_name, file, line, ex); - abort(); - } - - if (frame->magic != EXC_MAGIC) { - __exc_backtrace - ("*** CORRUPTED EXCEPTION FRAME *** -- %s: %s(%d) ex=%d\n\n", - program_invocation_short_name, file, line, ex); - abort(); - } - - frame->exc.file = file; - frame->exc.line = line; - - frame->exc.data = data; - frame->exc.size = size; - - longjmp(frame->jmp, ex); - - return -1; -} - -int __exc_rethrow(int ex, void *data, int size, const char *file, int line) -{ - exception_frame_t *frame = __exc_get_frame(); - - if (frame != NULL) - __exc_set_frame(frame->prev); - - return __exc_throw(ex, data, size, file, line); -} - -const char *__exc_name(int exc) -{ - return (exc < 0 || EXC_LAST <= exc) ? NULL : exception_name[exc]; -} - -__constructor void __exc_ctor(void) -{ - __exc_init(); -} |
