2004-11-23  Andrew Cagney  <cagney@redhat.com>

	* Makefile.in (uninstall-gstack, install-gstack): New rules, add
	to install and uninstall.
	* gstack.sh, gstack.1: New files.

Index: gdb-6.8.50.20090226/gdb/Makefile.in
===================================================================
--- gdb-6.8.50.20090226.orig/gdb/Makefile.in	2009-02-26 22:09:59.000000000 +0100
+++ gdb-6.8.50.20090226/gdb/Makefile.in	2009-02-26 22:10:22.000000000 +0100
@@ -973,7 +973,7 @@ install: all install-only 
 
 # The "install-only" target also installs the syscalls' XML files in
 # the system.
-install-only: $(CONFIG_INSTALL) xml-syscall-install
+install-only: install-gstack $(CONFIG_INSTALL) xml-syscall-install
 	transformed_name=`t='$(program_transform_name)'; \
 			  echo gdb | sed -e "$$t"` ; \
 		if test "x$$transformed_name" = x; then \
@@ -1005,9 +1005,26 @@ install-tui:
 			$(DESTDIR)$(man1dir) ; \
 		$(INSTALL_DATA) $(srcdir)/gdb.1 \
 			$(DESTDIR)$(man1dir)/$$transformed_name.1
+GSTACK=gstack
+.PHONY: install-gstack
+install-gstack:
+	transformed_name=`t='$(program_transform_name)'; \
+			  echo $(GSTACK) | sed -e "$$t"` ; \
+		if test "x$$transformed_name" = x; then \
+		  transformed_name=$(GSTACK) ; \
+		else \
+		  true ; \
+		fi ; \
+		$(SHELL) $(srcdir)/../mkinstalldirs $(DESTDIR)$(bindir) ; \
+		$(INSTALL_PROGRAM) $(srcdir)/$(GSTACK).sh \
+			$(DESTDIR)$(bindir)/$$transformed_name$(EXEEXT) ; \
+		: $(SHELL) $(srcdir)/../mkinstalldirs \
+			$(DESTDIR)$(man1dir) ; \
+		: $(INSTALL_DATA) $(srcdir)/gstack.1 \
+			$(DESTDIR)$(man1dir)/$$transformed_name.1
 
 
-uninstall: force $(CONFIG_UNINSTALL)
+uninstall: force uninstall-gstack $(CONFIG_UNINSTALL)
 	transformed_name=`t='$(program_transform_name)'; \
 			  echo gdb | sed -e $$t` ; \
 		if test "x$$transformed_name" = x; then \
@@ -1029,6 +1046,17 @@ uninstall-tui:
 		fi ; \
 		rm -f $(DESTDIR)$(bindir)/$$transformed_name$(EXEEXT) \
 		      $(DESTDIR)$(man1dir)/$$transformed_name.1
+.PHONY: uninstall-gstack
+uninstall-gstack:
+	transformed_name=`t='$(program_transform_name)'; \
+			  echo $(GSTACK) | sed -e $$t` ; \
+		if test "x$$transformed_name" = x; then \
+		  transformed_name=$(GSTACK) ; \
+		else \
+		  true ; \
+		fi ; \
+		rm -f $(DESTDIR)$(bindir)/$$transformed_name$(EXEEXT) \
+		      $(DESTDIR)$(man1dir)/$$transformed_name.1
 
 # The C++ name parser can be built standalone for testing.
 test-cp-name-parser.o: cp-name-parser.c
Index: gdb-6.8.50.20090226/gdb/gstack.sh
===================================================================
--- /dev/null	1970-01-01 00:00:00.000000000 +0000
+++ gdb-6.8.50.20090226/gdb/gstack.sh	2009-02-26 22:10:05.000000000 +0100
@@ -0,0 +1,45 @@
+#!/bin/sh
+
+if test $# -ne 1; then
+    echo "Usage: `basename $0 .sh` <process-id>" 1>&2
+    exit 1
+fi
+
+if test ! -r /proc/$1; then
+    echo "Process $1 not found." 1>&2
+    exit 1
+fi
+
+# GDB doesn't allow "thread apply all bt" when the process isn't
+# threaded; need to peek at the process to determine if that or the
+# simpler "bt" should be used.
+
+backtrace="bt"
+if test -d /proc/$1/task ; then
+    # Newer kernel; has a task/ directory.
+    if test `ls /proc/$1/task | wc -l` -gt 1 2>/dev/null ; then
+	backtrace="thread apply all bt"
+    fi
+elif test -f /proc/$1/maps ; then
+    # Older kernel; go by it loading libpthread.
+    if grep -e libpthread /proc/$1/maps > /dev/null 2>&1 ; then
+	backtrace="thread apply all bt"
+    fi
+fi
+
+GDB=${GDB:-gdb}
+
+if $GDB -nx --quiet --batch --readnever > /dev/null 2>&1; then
+    readnever=--readnever
+else
+    readnever=
+fi
+
+# Run GDB, strip out unwanted noise.
+$GDB --quiet $readnever -nx /proc/$1/exe $1 <<EOF 2>&1 | 
+$backtrace
+EOF
+sed -n \
+    -e 's/^(gdb) //' \
+    -e '/^#/p' \
+    -e '/^Thread/p'