1*38fd1498Szrj /* state.c -- Create the backtrace state.
2*38fd1498Szrj Copyright (C) 2012-2018 Free Software Foundation, Inc.
3*38fd1498Szrj Written by Ian Lance Taylor, Google.
4*38fd1498Szrj
5*38fd1498Szrj Redistribution and use in source and binary forms, with or without
6*38fd1498Szrj modification, are permitted provided that the following conditions are
7*38fd1498Szrj met:
8*38fd1498Szrj
9*38fd1498Szrj (1) Redistributions of source code must retain the above copyright
10*38fd1498Szrj notice, this list of conditions and the following disclaimer.
11*38fd1498Szrj
12*38fd1498Szrj (2) Redistributions in binary form must reproduce the above copyright
13*38fd1498Szrj notice, this list of conditions and the following disclaimer in
14*38fd1498Szrj the documentation and/or other materials provided with the
15*38fd1498Szrj distribution.
16*38fd1498Szrj
17*38fd1498Szrj (3) The name of the author may not be used to
18*38fd1498Szrj endorse or promote products derived from this software without
19*38fd1498Szrj specific prior written permission.
20*38fd1498Szrj
21*38fd1498Szrj THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
22*38fd1498Szrj IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
23*38fd1498Szrj WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
24*38fd1498Szrj DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
25*38fd1498Szrj INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
26*38fd1498Szrj (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
27*38fd1498Szrj SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28*38fd1498Szrj HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
29*38fd1498Szrj STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
30*38fd1498Szrj IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
31*38fd1498Szrj POSSIBILITY OF SUCH DAMAGE. */
32*38fd1498Szrj
33*38fd1498Szrj #include "config.h"
34*38fd1498Szrj
35*38fd1498Szrj #include <string.h>
36*38fd1498Szrj #include <sys/types.h>
37*38fd1498Szrj
38*38fd1498Szrj #include "backtrace.h"
39*38fd1498Szrj #include "backtrace-supported.h"
40*38fd1498Szrj #include "internal.h"
41*38fd1498Szrj
42*38fd1498Szrj /* Create the backtrace state. This will then be passed to all the
43*38fd1498Szrj other routines. */
44*38fd1498Szrj
45*38fd1498Szrj struct backtrace_state *
backtrace_create_state(const char * filename,int threaded,backtrace_error_callback error_callback,void * data)46*38fd1498Szrj backtrace_create_state (const char *filename, int threaded,
47*38fd1498Szrj backtrace_error_callback error_callback,
48*38fd1498Szrj void *data)
49*38fd1498Szrj {
50*38fd1498Szrj struct backtrace_state init_state;
51*38fd1498Szrj struct backtrace_state *state;
52*38fd1498Szrj
53*38fd1498Szrj #ifndef HAVE_SYNC_FUNCTIONS
54*38fd1498Szrj if (threaded)
55*38fd1498Szrj {
56*38fd1498Szrj error_callback (data, "backtrace library does not support threads", 0);
57*38fd1498Szrj return NULL;
58*38fd1498Szrj }
59*38fd1498Szrj #endif
60*38fd1498Szrj
61*38fd1498Szrj memset (&init_state, 0, sizeof init_state);
62*38fd1498Szrj init_state.filename = filename;
63*38fd1498Szrj init_state.threaded = threaded;
64*38fd1498Szrj
65*38fd1498Szrj state = ((struct backtrace_state *)
66*38fd1498Szrj backtrace_alloc (&init_state, sizeof *state, error_callback, data));
67*38fd1498Szrj if (state == NULL)
68*38fd1498Szrj return NULL;
69*38fd1498Szrj *state = init_state;
70*38fd1498Szrj
71*38fd1498Szrj return state;
72*38fd1498Szrj }
73