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/*
Copyright (c) 2001, 2011, Oracle and/or its affiliates.
Copyright (c) 2020, MariaDB Corporation.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; version 2 of the License.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1335 USA */
#ifndef _my_stacktrace_h_
#define _my_stacktrace_h_
#ifdef TARGET_OS_LINUX
#if defined (__x86_64__) || defined (__i386__) || \
(defined(__alpha__) && defined(__GNUC__))
#define HAVE_STACKTRACE 1
#endif
#elif defined(_WIN32) || defined(HAVE_PRINTSTACK)
#define HAVE_STACKTRACE 1
#endif
#if HAVE_BACKTRACE && (HAVE_BACKTRACE_SYMBOLS || HAVE_BACKTRACE_SYMBOLS_FD)
#undef HAVE_STACKTRACE
#define HAVE_STACKTRACE 1
#endif
#define HAVE_WRITE_CORE
#if HAVE_BACKTRACE && HAVE_BACKTRACE_SYMBOLS && HAVE_ABI_CXA_DEMANGLE && \
HAVE_WEAK_SYMBOL
#define BACKTRACE_DEMANGLE 1
#endif
C_MODE_START
#if defined(HAVE_STACKTRACE) || defined(HAVE_BACKTRACE)
void my_print_stacktrace(uchar* stack_bottom, ulong thread_stack,
my_bool silent);
int my_safe_print_str(const char* val, size_t max_len);
void my_write_core(int sig);
# if BACKTRACE_DEMANGLE
char *my_demangle(const char *mangled_name, int *status);
# endif /* BACKTRACE_DEMANGLE */
# ifdef _WIN32
# define my_setup_stacktrace()
void my_set_exception_pointers(EXCEPTION_POINTERS *ep);
# else
void my_setup_stacktrace(void);
# endif /* _WIN32 */
#else
# define my_setup_stacktrace()
#endif /* ! (defined(HAVE_STACKTRACE) || defined(HAVE_BACKTRACE)) */
#ifndef _WIN32
#define MY_ADDR_RESOLVE_FORK
#endif
#if defined(HAVE_BFD_H) || defined(MY_ADDR_RESOLVE_FORK)
#define HAVE_MY_ADDR_RESOLVE 1
#endif
typedef struct {
const char *file;
const char *func;
uint line;
} my_addr_loc;
#ifdef HAVE_MY_ADDR_RESOLVE
int my_addr_resolve(void *ptr, my_addr_loc *loc);
const char *my_addr_resolve_init();
#else
#define my_addr_resolve_init() (0)
#define my_addr_resolve(A,B) (1)
#endif
#ifdef HAVE_WRITE_CORE
void my_write_core(int sig);
#endif
/**
A (very) limited version of snprintf, which writes the result to STDERR.
@sa my_safe_snprintf
Implemented with simplicity, and async-signal-safety in mind.
@note Has an internal buffer capacity of 512 bytes,
which should suffice for our signal handling routines.
*/
size_t my_safe_printf_stderr(const char* fmt, ...)
ATTRIBUTE_FORMAT(printf, 1, 2);
/**
Writes up to count bytes from buffer to STDERR.
Implemented with simplicity, and async-signal-safety in mind.
@param buf Buffer containing data to be written.
@param count Number of bytes to write.
@returns Number of bytes written.
*/
size_t my_write_stderr(const void *buf, size_t count);
C_MODE_END
#endif /* _my_stacktrace_h_ */
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