PSARC/2007/162 Backtrace() and friends for Solaris

6536146 libc should provide glibc-compatible backtrace() functions

3 files changed, 61 insertions, 6 deletions

diff --git a/usr/src/head/Makefile b/usr/src/head/Makefile
index 800dbc1174..9540f88181 100644
--- a/usr/src/head/Makefile
+++ b/usr/src/head/Makefile
@@ -65,6 +65,7 @@ HDRS=   $($(MACH)_HDRS)  $(ATTRDB_HDRS) \
 	euc.h		\
 	exacct.h	\
 	exacct_impl.h	\
+	execinfo.h	\
 	fatal.h		\
 	fcntl.h		\
 	float.h		\
diff --git a/usr/src/head/execinfo.h b/usr/src/head/execinfo.h
new file mode 100644
index 0000000000..10aa4cb346
--- /dev/null
+++ b/usr/src/head/execinfo.h
@@ -0,0 +1,54 @@
+/*
+ * CDDL HEADER START
+ *
+ * The contents of this file are subject to the terms of the
+ * Common Development and Distribution License (the "License").
+ * You may not use this file except in compliance with the License.
+ *
+ * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
+ * or http://www.opensolaris.org/os/licensing.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ *
+ * When distributing Covered Code, include this CDDL HEADER in each
+ * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
+ * If applicable, add the following below this CDDL HEADER, with the
+ * fields enclosed by brackets "[]" replaced with your own identifying
+ * information: Portions Copyright [yyyy] [name of copyright owner]
+ *
+ * CDDL HEADER END
+ */
+/*
+ * Copyright 2007 Sun Microsystems, Inc.  All rights reserved.
+ * Use is subject to license terms.
+ */
+
+#ifndef	_EXECINFO_H
+#define	_EXECINFO_H
+
+#pragma ident	"%Z%%M%	%I%	%E% SMI"
+
+/*
+ * These functions provide glibc-compatible backtrace functionality.
+ * Improved functionality is available using Solaris-specific APIs;
+ * see man page for walkcontext(), printstack() and addtosymstr().
+ */
+#ifdef	__cplusplus
+extern "C" {
+#endif
+
+#if defined(__STDC__)
+extern int backtrace(void **, int);
+extern char **backtrace_symbols(void *const *, int);
+extern void backtrace_symbols_fd(void *const *, int, int);
+#else
+extern int backtrace();
+extern char **backtrace_symbols();
+extern void backtrace_symbols_fd();
+#endif
+
+#ifdef	__cplusplus
+}
+#endif
+
+#endif /* _EXECINFO_H */
diff --git a/usr/src/head/ucontext.h b/usr/src/head/ucontext.h
index 8fc6fd52bd..15aaeff91e 100644
--- a/usr/src/head/ucontext.h
+++ b/usr/src/head/ucontext.h
@@ -2,9 +2,8 @@
  * CDDL HEADER START
  *
  * The contents of this file are subject to the terms of the
- * Common Development and Distribution License, Version 1.0 only
- * (the "License").  You may not use this file except in compliance
- * with the License.
+ * Common Development and Distribution License (the "License").
+ * You may not use this file except in compliance with the License.
  *
  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
  * or http://www.opensolaris.org/os/licensing.
@@ -24,7 +23,7 @@
 
 
 /*
- * Copyright 2004 Sun Microsystems, Inc.  All rights reserved.
+ * Copyright 2007 Sun Microsystems, Inc.  All rights reserved.
  * Use is subject to license terms.
  */
 
@@ -37,6 +36,7 @@
 
 #if !defined(_XPG4_2) || defined(__EXTENSIONS__)
 #include <sys/siginfo.h>
+#include <execinfo.h>
 #endif
 
 #ifdef	__cplusplus
@@ -63,7 +63,7 @@ extern void makecontext(ucontext_t *, void(*)(), int, ...);
 extern int walkcontext(const ucontext_t *, int (*)(uintptr_t, int, void *),
     void *);
 extern int printstack(int);
-
+extern int addrtosymstr(void *, char *, int);
 extern int getustack(stack_t **);
 extern int setustack(stack_t *);
 
@@ -84,7 +84,7 @@ extern void makecontext();
 #if !defined(_XPG4_2) || defined(__EXTENSIONS__)
 extern int walkcontext();
 extern int printstack();
-
+extern int addrtosymstr();
 extern int getustack();
 extern int setustack();