mirror of git://gcc.gnu.org/git/gcc.git
73 lines
2.4 KiB
C
73 lines
2.4 KiB
C
/* state.c -- Create the backtrace state.
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Copyright (C) 2012-2014 Free Software Foundation, Inc.
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Written by Ian Lance Taylor, Google.
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions are
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met:
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(1) Redistributions of source code must retain the above copyright
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notice, this list of conditions and the following disclaimer.
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(2) Redistributions in binary form must reproduce the above copyright
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notice, this list of conditions and the following disclaimer in
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the documentation and/or other materials provided with the
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distribution.
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(3) The name of the author may not be used to
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endorse or promote products derived from this software without
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specific prior written permission.
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THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
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INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
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IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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POSSIBILITY OF SUCH DAMAGE. */
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#include "config.h"
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#include <string.h>
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#include <sys/types.h>
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#include "backtrace.h"
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#include "backtrace-supported.h"
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#include "internal.h"
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/* Create the backtrace state. This will then be passed to all the
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other routines. */
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struct backtrace_state *
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backtrace_create_state (const char *filename, int threaded,
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backtrace_error_callback error_callback,
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void *data)
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{
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struct backtrace_state init_state;
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struct backtrace_state *state;
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#ifndef HAVE_SYNC_FUNCTIONS
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if (threaded)
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{
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error_callback (data, "backtrace library does not support threads", 0);
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return NULL;
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}
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#endif
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memset (&init_state, 0, sizeof init_state);
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init_state.filename = filename;
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init_state.threaded = threaded;
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state = ((struct backtrace_state *)
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backtrace_alloc (&init_state, sizeof *state, error_callback, data));
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if (state == NULL)
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return NULL;
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*state = init_state;
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return state;
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}
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