merge from gcc

7 files changed, 129 insertions, 13 deletions

diff --git a/libiberty/ChangeLog b/libiberty/ChangeLog
index 77f7fe34752..931697500e7 100644
--- a/libiberty/ChangeLog
+++ b/libiberty/ChangeLog
@@ -1,3 +1,14 @@
+2010-10-06  Andi Kleen <ak@linux.intel.com>
+
+	* Makefile.in (CFILES): Add setproctitle.
+	(CONFIGURED_OFILES): Add setproctitle.
+	(setproctitle): Add rule.
+	* config.in: Regenerate.
+	* configure: Regenerate.
+	* configure.ac: Add checks for prctl PR_SET_NAME and setproctitle.
+	* setproctitle.c: Add file.
+	* functions.texi: Regenerate.
+
 2010-09-22 Tristan Gingold  <gingold@adacore.com>
 
 	* cplus-dem.c (ada_demangle): Add comments.
diff --git a/libiberty/Makefile.in b/libiberty/Makefile.in
index c5e992945f1..18932544559 100644
--- a/libiberty/Makefile.in
+++ b/libiberty/Makefile.in
@@ -144,7 +144,8 @@ CFILES = alloca.c argv.c asprintf.c atexit.c				\
 	 pex-unix.c pex-win32.c						\
          physmem.c putenv.c						\
 	random.c regex.c rename.c rindex.c				\
-	safe-ctype.c setenv.c sha1.c sigsetmask.c snprintf.c sort.c	\
+	safe-ctype.c setenv.c setproctitle.c sha1.c sigsetmask.c        \
+         snprintf.c sort.c						\
 	 spaces.c splay-tree.c stpcpy.c stpncpy.c strcasecmp.c		\
 	 strchr.c strdup.c strerror.c strncasecmp.c strncmp.c		\
 	 strrchr.c strsignal.c strstr.c strtod.c strtol.c strtoul.c	\
@@ -201,7 +202,9 @@ CONFIGURED_OFILES = ./asprintf.$(objext) ./atexit.$(objext)		\
 	 ./pex-unix.$(objext) ./pex-win32.$(objext)			\
 	 ./putenv.$(objext)						\
 	./random.$(objext) ./rename.$(objext) ./rindex.$(objext)	\
-	./setenv.$(objext) ./sigsetmask.$(objext) ./snprintf.$(objext)	\
+	./setenv.$(objext) 						\
+	 ./setproctitle.$(objext)					\
+	 ./sigsetmask.$(objext) ./snprintf.$(objext)			\
 	 ./stpcpy.$(objext) ./stpncpy.$(objext) ./strcasecmp.$(objext)	\
 	 ./strchr.$(objext) ./strdup.$(objext) ./strncasecmp.$(objext)	\
 	 ./strncmp.$(objext) ./strndup.$(objext) ./strrchr.$(objext)	\
@@ -944,6 +947,12 @@ $(CONFIGURED_OFILES): stamp-picdir
 	else true; fi
 	$(COMPILE.c) $(srcdir)/setenv.c $(OUTPUT_OPTION)
 
+./setproctitle.$(objext): $(srcdir)/setproctitle.c config.h $(INCDIR)/ansidecl.h
+	if [ x"$(PICFLAG)" != x ]; then \
+	  $(COMPILE.c) $(PICFLAG) $(srcdir)/setproctitle.c -o pic/$@; \
+	else true; fi
+	$(COMPILE.c) $(srcdir)/setproctitle.c $(OUTPUT_OPTION)
+
 ./sha1.$(objext): $(srcdir)/sha1.c config.h $(INCDIR)/ansidecl.h $(INCDIR)/sha1.h
 	if [ x"$(PICFLAG)" != x ]; then \
 	  $(COMPILE.c) $(PICFLAG) $(srcdir)/sha1.c -o pic/$@; \
diff --git a/libiberty/config.in b/libiberty/config.in
index 193164830cf..02d93dac8bf 100644
--- a/libiberty/config.in
+++ b/libiberty/config.in
@@ -44,8 +44,8 @@
    don't. */
 #undef HAVE_DECL_ASPRINTF
 
-/* Define to 1 if you have the declaration of `basename', and to 0 if you
-   don't. */
+/* Define to 1 if you have the declaration of `basename(char *)', and to 0 if
+   you don't. */
 #undef HAVE_DECL_BASENAME
 
 /* Define to 1 if you have the declaration of `calloc', and to 0 if you don't.
@@ -154,9 +154,6 @@
 /* Define to 1 if you have the <memory.h> header file. */
 #undef HAVE_MEMORY_H
 
-/* Define to 1 if you have the `mempcpy' function. */
-#undef HAVE_MEMPCPY
-
 /* Define to 1 if you have the `memset' function. */
 #undef HAVE_MEMSET
 
@@ -169,6 +166,9 @@
 /* Define to 1 if you have the `on_exit' function. */
 #undef HAVE_ON_EXIT
 
+/* Define if you have prctl PR_SET_NAME */
+#undef HAVE_PRCTL_SET_NAME
+
 /* Define to 1 if you have the `psignal' function. */
 #undef HAVE_PSIGNAL
 
@@ -199,6 +199,9 @@
 /* Define to 1 if you have the `setenv' function. */
 #undef HAVE_SETENV
 
+/* Define to 1 if you have the `setproctitle' function. */
+#undef HAVE_SETPROCTITLE
+
 /* Define to 1 if you have the `sigsetmask' function. */
 #undef HAVE_SIGSETMASK
 
@@ -358,9 +361,6 @@
 /* Define to 1 if you have the `vprintf' function. */
 #undef HAVE_VPRINTF
 
-/* Define to 1 if you have the `vsnprintf' function. */
-#undef HAVE_VSNPRINTF
-
 /* Define to 1 if you have the `vsprintf' function. */
 #undef HAVE_VSPRINTF
 
diff --git a/libiberty/configure b/libiberty/configure
index 9a3b2d30859..7ff7792440e 100755
--- a/libiberty/configure
+++ b/libiberty/configure
@@ -5276,6 +5276,7 @@ funcs="$funcs vprintf"
 funcs="$funcs vsnprintf"
 funcs="$funcs vsprintf"
 funcs="$funcs waitpid"
+funcs="$funcs setproctitle"
 
 # Also in the old function.def file: alloca, vfork, getopt.
 
@@ -5298,7 +5299,8 @@ if test "x" = "y"; then
     on_exit \
     psignal pstat_getdynamic pstat_getstatic putenv \
     random realpath rename rindex \
-    sbrk setenv sigsetmask snprintf stpcpy stpncpy strcasecmp strchr strdup \
+    sbrk setenv setproctitle sigsetmask snprintf stpcpy stpncpy strcasecmp strchr \
+    strdup \
      strerror strncasecmp strndup strrchr strsignal strstr strtod strtol \
      strtoul strverscmp sysconf sysctl sysmp \
     table times tmpnam \
@@ -5704,6 +5706,33 @@ fi
 
 
 
+# check for prctl PR_SET_NAME
+if test "$cross_compiling" = yes; then :
+  { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error "cannot run test program while cross compiling
+See \`config.log' for more details." "$LINENO" 5; }
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+#include <sys/prctl.h>
+int main()
+{
+  return (prctl(PR_SET_NAME, "foo") == 0) ? 0 : 1;
+}
+
+_ACEOF
+if ac_fn_c_try_run "$LINENO"; then :
+
+$as_echo "#define HAVE_PRCTL_SET_NAME 1" >>confdefs.h
+
+fi
+rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
+  conftest.$ac_objext conftest.beam conftest.$ac_ext
+fi
+
+
 case "${host}" in
   *-*-cygwin* | *-*-mingw*)
     $as_echo "#define HAVE_SYS_ERRLIST 1" >>confdefs.h
diff --git a/libiberty/configure.ac b/libiberty/configure.ac
index 4de83f95ada..8b7be1835f4 100644
--- a/libiberty/configure.ac
+++ b/libiberty/configure.ac
@@ -351,6 +351,7 @@ funcs="$funcs vprintf"
 funcs="$funcs vsnprintf"
 funcs="$funcs vsprintf"
 funcs="$funcs waitpid"
+funcs="$funcs setproctitle"
 
 # Also in the old function.def file: alloca, vfork, getopt.
 
@@ -373,7 +374,8 @@ if test "x" = "y"; then
     on_exit \
     psignal pstat_getdynamic pstat_getstatic putenv \
     random realpath rename rindex \
-    sbrk setenv sigsetmask snprintf stpcpy stpncpy strcasecmp strchr strdup \
+    sbrk setenv setproctitle sigsetmask snprintf stpcpy stpncpy strcasecmp strchr \
+    strdup \
      strerror strncasecmp strndup strrchr strsignal strstr strtod strtol \
      strtoul strverscmp sysconf sysctl sysmp \
     table times tmpnam \
@@ -533,6 +535,16 @@ fi
 AC_SUBST(CHECK)
 AC_SUBST(target_header_dir)
 
+# check for prctl PR_SET_NAME
+AC_RUN_IFELSE([AC_LANG_SOURCE([[
+#include <sys/prctl.h>
+int main()
+{
+  return (prctl(PR_SET_NAME, "foo") == 0) ? 0 : 1;
+}
+]])], AC_DEFINE(HAVE_PRCTL_SET_NAME, 1,
+	[Define if you have prctl PR_SET_NAME]))
+
 case "${host}" in
   *-*-cygwin* | *-*-mingw*)
     AC_DEFINE(HAVE_SYS_ERRLIST)
diff --git a/libiberty/functions.texi b/libiberty/functions.texi
index d9fef8cb7b3..e074ba716f8 100644
--- a/libiberty/functions.texi
+++ b/libiberty/functions.texi
@@ -667,7 +667,7 @@ relative prefix can be found, return @code{NULL}.
 
 @end deftypefn
 
-@c make-temp-file.c:168
+@c make-temp-file.c:173
 @deftypefn Replacement char* make_temp_file (const char *@var{suffix})
 
 Return a temporary file name (as a string) or @code{NULL} if unable to
@@ -1146,6 +1146,14 @@ environment.  This implementation is not safe for multithreaded code.
 
 @end deftypefn
 
+@c setproctitle.c:30
+@deftypefn Supplemental void setproctitle(const char *@var{fmt} ...)
+
+Set the title of a process to @var{fmt}. va args not supported for now,
+but defined for compatibility with BSD. 
+
+@end deftypefn
+
 @c strsignal.c:348
 @deftypefn Extension int signo_max (void)
 
diff --git a/libiberty/setproctitle.c b/libiberty/setproctitle.c
new file mode 100644
index 00000000000..b176b41f949
--- /dev/null
+++ b/libiberty/setproctitle.c
@@ -0,0 +1,47 @@
+/* Set the title of a process.
+   Copyright (C) 2010 Free Software Foundation, Inc.
+
+This file is part of the libiberty library.
+Libiberty is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public
+License as published by the Free Software Foundation; either
+version 2 of the License, or (at your option) any later version.
+
+Libiberty 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
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with libiberty; see the file COPYING.LIB.  If not,
+write to the Free Software Foundation, Inc., 51 Franklin Street - Fifth Floor,
+Boston, MA 02110-1301, USA.  */
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+#ifdef HAVE_PRCTL_SET_NAME
+#include <sys/prctl.h>
+#endif
+#include "ansidecl.h"
+
+/*
+
+@deftypefn Supplemental void setproctitle(const char *@var{fmt} ...)
+
+Set the title of a process to @var{fmt}. va args not supported for now,
+but defined for compatibility with BSD. 
+
+@end deftypefn
+
+*/
+
+void
+setproctitle (const char *name ATTRIBUTE_UNUSED, ...)
+{
+#ifdef HAVE_PRCTL_SET_NAME
+  /* On Linux this sets the top visible "comm", but not necessarily
+     the name visible in ps. */
+  prctl (PR_SET_NAME, name);
+#endif
+}