lib/util: Move log_stack_trace() to common code

[bbaumbach/samba-autobuild/.git] / source3 / lib / util.c

diff --git a/source3/lib/util.c b/source3/lib/util.c
index 98c47b3df9f8e9a59932d76c045f23f715556fa4..5f786f95d3e2eccd113a39eec585d195713c5747 100644 (file)
--- a/source3/lib/util.c
+++ b/source3/lib/util.c
@@ -838,103 +838,6 @@ void smb_panic_s3(const char *why)
        dump_core();
 }
 
-/*******************************************************************
- Print a backtrace of the stack to the debug log. This function
- DELIBERATELY LEAKS MEMORY. The expectation is that you should
- exit shortly after calling it.
-********************************************************************/
-
-#ifdef HAVE_LIBUNWIND_H
-#include <libunwind.h>
-#endif
-
-#ifdef HAVE_EXECINFO_H
-#include <execinfo.h>
-#endif
-
-void log_stack_trace(void)
-{
-#ifdef HAVE_LIBUNWIND
-       /* Try to use libunwind before any other technique since on ia64
-        * libunwind correctly walks the stack in more circumstances than
-        * backtrace.
-        */ 
-       unw_cursor_t cursor;
-       unw_context_t uc;
-       unsigned i = 0;
-
-       char procname[256];
-       unw_word_t ip, sp, off;
-
-       procname[sizeof(procname) - 1] = '\0';
-
-       if (unw_getcontext(&uc) != 0) {
-               goto libunwind_failed;
-       }
-
-       if (unw_init_local(&cursor, &uc) != 0) {
-               goto libunwind_failed;
-       }
-
-       DEBUG(0, ("BACKTRACE:\n"));
-
-       do {
-           ip = sp = 0;
-           unw_get_reg(&cursor, UNW_REG_IP, &ip);
-           unw_get_reg(&cursor, UNW_REG_SP, &sp);
-
-           switch (unw_get_proc_name(&cursor,
-                       procname, sizeof(procname) - 1, &off) ) {
-           case 0:
-                   /* Name found. */
-           case -UNW_ENOMEM:
-                   /* Name truncated. */
-                   DEBUGADD(0, (" #%u %s + %#llx [ip=%#llx] [sp=%#llx]\n",
-                           i, procname, (long long)off,
-                           (long long)ip, (long long) sp));
-                   break;
-           default:
-           /* case -UNW_ENOINFO: */
-           /* case -UNW_EUNSPEC: */
-                   /* No symbol name found. */
-                   DEBUGADD(0, (" #%u %s [ip=%#llx] [sp=%#llx]\n",
-                           i, "<unknown symbol>",
-                           (long long)ip, (long long) sp));
-           }
-           ++i;
-       } while (unw_step(&cursor) > 0);
-
-       return;
-
-libunwind_failed:
-       DEBUG(0, ("unable to produce a stack trace with libunwind\n"));
-
-#elif HAVE_BACKTRACE_SYMBOLS
-       void *backtrace_stack[BACKTRACE_STACK_SIZE];
-       size_t backtrace_size;
-       char **backtrace_strings;
-
-       /* get the backtrace (stack frames) */
-       backtrace_size = backtrace(backtrace_stack,BACKTRACE_STACK_SIZE);
-       backtrace_strings = backtrace_symbols(backtrace_stack, backtrace_size);
-
-       DEBUG(0, ("BACKTRACE: %lu stack frames:\n", 
-                 (unsigned long)backtrace_size));
-
-       if (backtrace_strings) {
-               int i;
-
-               for (i = 0; i < backtrace_size; i++)
-                       DEBUGADD(0, (" #%u %s\n", i, backtrace_strings[i]));
-
-               /* Leak the backtrace_strings, rather than risk what free() might do */
-       }
-
-#else
-       DEBUG(0, ("unable to produce a stack trace on this platform\n"));
-#endif
-}
-
 /*******************************************************************
   A readdir wrapper which just returns the file name.
  ********************************************************************/