65 lines
2.4 KiB
C
65 lines
2.4 KiB
C
/* unknown.c -- used when backtrace configury does not know file format.
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Copyright (C) 2012-2021 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 <sys/types.h>
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#include "backtrace.h"
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#include "internal.h"
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/* A trivial routine that always fails to find fileline data. */
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static int
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unknown_fileline (struct backtrace_state *state ATTRIBUTE_UNUSED,
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uintptr_t pc, backtrace_full_callback callback,
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backtrace_error_callback error_callback ATTRIBUTE_UNUSED,
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void *data)
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{
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return callback (data, pc, NULL, 0, NULL);
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}
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/* Initialize the backtrace data when we don't know how to read the
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debug info. */
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int
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backtrace_initialize (struct backtrace_state *state ATTRIBUTE_UNUSED,
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const char *filename ATTRIBUTE_UNUSED,
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int descriptor ATTRIBUTE_UNUSED,
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backtrace_error_callback error_callback ATTRIBUTE_UNUSED,
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void *data ATTRIBUTE_UNUSED, fileline *fileline_fn)
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{
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state->fileline_data = NULL;
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*fileline_fn = unknown_fileline;
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return 1;
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}
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