91 lines
2.4 KiB
C
Executable File
91 lines
2.4 KiB
C
Executable File
/* print_stack_trace() function that prints a stack trace.
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Copyright (C) 2024 Free Software Foundation, Inc.
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This file is free software: you can redistribute it and/or modify
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it under the terms of the GNU Lesser General Public License as
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published by the Free Software Foundation; either version 2.1 of the
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License, or (at your option) any later version.
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This file is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with this program. If not, see <https://www.gnu.org/licenses/>. */
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#if HAVE_LIBBACKTRACE
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# include <backtrace.h>
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static struct backtrace_state *state /* = NULL */;
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static inline void
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# if (__GNUC__ >= 3) || (__clang_major__ >= 4)
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__attribute__ ((always_inline))
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# endif
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print_stack_trace_to (FILE *stream)
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{
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if (state == NULL)
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state = backtrace_create_state (NULL, 0, NULL, NULL);
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fprintf (stream, "Stack trace:\n");
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/* Pass skip=0, to work around <https://github.com/ianlancetaylor/libbacktrace/issues/60>. */
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backtrace_print (state, 0, stream);
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}
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#elif HAVE_LIBASAN
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# include <stdio.h>
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/* We need only one declaration from <sanitizer/asan_interface.h>. */
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extern
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# ifdef __cplusplus
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"C"
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# endif
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void __sanitizer_print_stack_trace (void);
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/* The only supported stream, in this case, is stderr. */
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static inline void
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# if (__GNUC__ >= 3) || (__clang_major__ >= 4)
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__attribute__ ((always_inline))
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# endif
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print_stack_trace_to (FILE *stream)
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{
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fprintf (stream, "Stack trace:\n");
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__sanitizer_print_stack_trace ();
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}
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#elif HAVE_EXECINFO_H
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# include <stdio.h>
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# include "execinfo.h"
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static inline void
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# if (__GNUC__ >= 3) || (__clang_major__ >= 4)
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__attribute__ ((always_inline))
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# endif
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print_stack_trace_to (FILE *stream)
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{
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void *buffer[100];
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int max_size = sizeof (buffer) / sizeof (buffer[0]);
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int size = backtrace (buffer, max_size);
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if (size > 0)
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{
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char **symbols = backtrace_symbols (buffer, size);
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if (symbols != NULL)
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{
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int i;
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fprintf (stream, "Stack trace:\n");
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for (i = 0; i < size; i++)
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fprintf (stream, "%s\n", symbols[i]);
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fflush (stream);
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free (symbols);
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}
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}
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}
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#endif
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