/*
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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(vorverarbeitet am 2026-10-08)
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