1 files changed, 109 insertions, 0 deletions
diff --git a/include/my_stacktrace.h b/include/my_stacktrace.h
new file mode 100644
index 00000000..7cfee0f7
--- /dev/null
+++ b/include/my_stacktrace.h
@@ -0,0 +1,109 @@
+/*
+   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_ */