lib/util: Move log_stack_trace() to common code

Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
BUG: https://bugzilla.samba.org/show_bug.cgi?id=13454
(cherry picked from commit bf9551902afdb32310db4a3381964c435dd08bf0)

1 files changed, 0 insertions, 97 deletions

diff --git a/source3/lib/util.c b/source3/lib/util.c
index 98c47b3df9f..5f786f95d3e 100644
--- a/source3/lib/util.c
+++ b/source3/lib/util.c
@@ -839,103 +839,6 @@ void smb_panic_s3(const char *why)
 }
 
 /*******************************************************************
- 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.
  ********************************************************************/