2003-06-04 Jeff Johnston <jjohnstn@redhat.com>

        * acconfig.h: Add HAVE_TKILL_SYSCALL definition check.
        * config.in: Regenerated.
        * configure.in: Add test for syscall function and check for
        __NR_tkill macro in <syscall.h> to set HAVE_TKILL_SYSCALL.
        * configure: Regenerated.
        * lin-lwp.c [HAVE_TKILL_SYSCALL]: Include <unistd.h> and
        <sys/syscall.h>.
        (kill_lwp): New function that uses tkill syscall or
        uses kill, depending on whether threading model is nptl or not.
        All callers of kill() changed to use kill_lwp().
        (lin_lwp_wait): Make special check when WIFEXITED occurs to
        see if all threads have already exited in the nptl model.
        (stop_and_resume_callback): New callback function used by the
        lin_lwp_wait thread exit handling code.
        (stop_wait_callback): Check for threads already having exited and
        delete such threads fromt the lwp list when discovered.
        (stop_callback): Don't assert retcode of kill call.

        Roland McGrath  <roland@redhat.com>
        * i386-linux-nat.c (ps_get_thread_area): New function needed by
        nptl libthread_db.

7 files changed, 519 insertions, 205 deletions

diff --git a/gdb/ChangeLog b/gdb/ChangeLog
index d7f7a95..bbb66b5 100644
--- a/gdb/ChangeLog
+++ b/gdb/ChangeLog
@@ -1,3 +1,27 @@
+2003-06-04  Jeff Johnston  <jjohnstn@redhat.com>
+ 
+	* acconfig.h: Add HAVE_TKILL_SYSCALL definition check.
+	* config.in: Regenerated.
+	* configure.in: Add test for syscall function and check for
+	__NR_tkill macro in <syscall.h> to set HAVE_TKILL_SYSCALL.
+	* configure: Regenerated.
+	* lin-lwp.c [HAVE_TKILL_SYSCALL]: Include <unistd.h> and
+	<sys/syscall.h>.
+	(kill_lwp): New function that uses tkill syscall or
+	uses kill, depending on whether threading model is nptl or not.
+	All callers of kill() changed to use kill_lwp().
+	(lin_lwp_wait): Make special check when WIFEXITED occurs to
+	see if all threads have already exited in the nptl model.
+	(stop_and_resume_callback): New callback function used by the
+	lin_lwp_wait thread exit handling code.
+	(stop_wait_callback): Check for threads already having exited and
+	delete such threads fromt the lwp list when discovered.
+	(stop_callback): Don't assert retcode of kill call.
+ 
+	Roland McGrath  <roland@redhat.com>
+	* i386-linux-nat.c (ps_get_thread_area): New function needed by
+	nptl libthread_db.
+
 2003-06-03  Richard Henderson  <rth@redhat.com>
 
 	* alpha-tdep.c (alpha_next_pc): Use alpha_read_insn.
diff --git a/gdb/acconfig.h b/gdb/acconfig.h
index a9bf0a4..a7d25e8 100644
--- a/gdb/acconfig.h
+++ b/gdb/acconfig.h
@@ -95,6 +95,9 @@
 /* Define if using Solaris thread debugging.  */
 #undef HAVE_THREAD_DB_LIB
 
+/* Define if you support the tkill syscall.  */
+#undef HAVE_TKILL_SYSCALL
+
 /* Define on a GNU/Linux system to work around problems in sys/procfs.h.  */
 #undef START_INFERIOR_TRAPS_EXPECTED
 #undef sys_quotactl
diff --git a/gdb/config.in b/gdb/config.in
index 4500519..9fddbef 100644
--- a/gdb/config.in
+++ b/gdb/config.in
@@ -257,6 +257,9 @@
 /* Define if you have the strchr function.  */
 #undef HAVE_STRCHR
 
+/* Define if you have the syscall function.  */
+#undef HAVE_SYSCALL
+
 /* Define if you have the <argz.h> header file.  */
 #undef HAVE_ARGZ_H
 
@@ -513,6 +516,9 @@
 /* Define if <thread_db.h> has the TD_NOTALLOC error code. */
 #undef THREAD_DB_HAS_TD_NOTALLOC
 
+/* Define if we can use the tkill syscall. */
+#undef HAVE_TKILL_SYSCALL
+
 /* Define to the default OS ABI for this configuration. */
 #undef GDB_OSABI_DEFAULT
 
diff --git a/gdb/configure b/gdb/configure
index 207381a..11699a2 100755
--- a/gdb/configure
+++ b/gdb/configure
@@ -6602,10 +6602,65 @@ else
 fi
 done
 
+for ac_func in syscall
+do
+echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
+echo "configure:6609: checking for $ac_func" >&5
+if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
+  cat > conftest.$ac_ext <<EOF
+#line 6614 "configure"
+#include "confdefs.h"
+/* System header to define __stub macros and hopefully few prototypes,
+    which can conflict with char $ac_func(); below.  */
+#include <assert.h>
+/* Override any gcc2 internal prototype to avoid an error.  */
+/* We use char because int might match the return type of a gcc2
+    builtin and then its argument prototype would still apply.  */
+char $ac_func();
+
+int main() {
+
+/* The GNU C library defines this for functions which it implements
+    to always fail with ENOSYS.  Some functions are actually named
+    something starting with __ and the normal name is an alias.  */
+#if defined (__stub_$ac_func) || defined (__stub___$ac_func)
+choke me
+#else
+$ac_func();
+#endif
+
+; return 0; }
+EOF
+if { (eval echo configure:6637: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+  rm -rf conftest*
+  eval "ac_cv_func_$ac_func=yes"
+else
+  echo "configure: failed program was:" >&5
+  cat conftest.$ac_ext >&5
+  rm -rf conftest*
+  eval "ac_cv_func_$ac_func=no"
+fi
+rm -f conftest*
+fi
+
+if eval "test \"`echo '$ac_cv_func_'$ac_func`\" = yes"; then
+  echo "$ac_t""yes" 1>&6
+    ac_tr_func=HAVE_`echo $ac_func | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`
+  cat >> confdefs.h <<EOF
+#define $ac_tr_func 1
+EOF
+ 
+else
+  echo "$ac_t""no" 1>&6
+fi
+done
+
 
 if test "$cross_compiling" = no; then
   echo $ac_n "checking whether setpgrp takes no argument""... $ac_c" 1>&6
-echo "configure:6609: checking whether setpgrp takes no argument" >&5
+echo "configure:6664: checking whether setpgrp takes no argument" >&5
 if eval "test \"`echo '$''{'ac_cv_func_setpgrp_void'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -6613,7 +6668,7 @@ else
   { echo "configure: error: cannot check setpgrp if cross compiling" 1>&2; exit 1; }
 else
   cat > conftest.$ac_ext <<EOF
-#line 6617 "configure"
+#line 6672 "configure"
 #include "confdefs.h"
 
 #ifdef HAVE_UNISTD_H
@@ -6633,7 +6688,7 @@ main()
 }
 
 EOF
-if { (eval echo configure:6637: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
+if { (eval echo configure:6692: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
 then
   ac_cv_func_setpgrp_void=no
 else
@@ -6658,12 +6713,12 @@ fi
 
 else
   echo $ac_n "checking whether setpgrp takes no argument""... $ac_c" 1>&6
-echo "configure:6662: checking whether setpgrp takes no argument" >&5
+echo "configure:6717: checking whether setpgrp takes no argument" >&5
 if eval "test \"`echo '$''{'ac_cv_func_setpgrp_void'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 6667 "configure"
+#line 6722 "configure"
 #include "confdefs.h"
 
 #include <unistd.h>
@@ -6677,7 +6732,7 @@ int main() {
 
 ; return 0; }
 EOF
-if { (eval echo configure:6681: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:6736: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   ac_cv_func_setpgrp_void=no
 else
@@ -6701,12 +6756,12 @@ fi
 # Check if sigsetjmp is available.  Using AC_CHECK_FUNCS won't do
 # since sigsetjmp might only be defined as a macro.
 echo $ac_n "checking for sigsetjmp""... $ac_c" 1>&6
-echo "configure:6705: checking for sigsetjmp" >&5
+echo "configure:6760: checking for sigsetjmp" >&5
 if eval "test \"`echo '$''{'gdb_cv_func_sigsetjmp'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 6710 "configure"
+#line 6765 "configure"
 #include "confdefs.h"
 
 #include <setjmp.h>
@@ -6715,7 +6770,7 @@ int main() {
 sigjmp_buf env; while (! sigsetjmp (env, 1)) siglongjmp (env, 1);
 ; return 0; }
 EOF
-if { (eval echo configure:6719: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:6774: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   gdb_cv_func_sigsetjmp=yes
 else
@@ -6741,12 +6796,12 @@ gdb_use_included_regex=yes
 # However, if the system regex is GNU regex, then default to *not*
 # using the included regex.
 echo $ac_n "checking for GNU regex""... $ac_c" 1>&6
-echo "configure:6745: checking for GNU regex" >&5
+echo "configure:6800: checking for GNU regex" >&5
 if eval "test \"`echo '$''{'gdb_cv_have_gnu_regex'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 6750 "configure"
+#line 6805 "configure"
 #include "confdefs.h"
 #include <gnu-versions.h>
 int main() {
@@ -6756,7 +6811,7 @@ int main() {
 #endif
 ; return 0; }
 EOF
-if { (eval echo configure:6760: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:6815: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   gdb_cv_have_gnu_regex=yes
 else
@@ -6791,19 +6846,19 @@ fi
 # See if <machine/reg.h> supports the %fs and %gs i386 segment registers.
 # Older i386 BSD's don't have the r_fs and r_gs members of `struct reg'.
 echo $ac_n "checking for r_fs in struct reg""... $ac_c" 1>&6
-echo "configure:6795: checking for r_fs in struct reg" >&5
+echo "configure:6850: checking for r_fs in struct reg" >&5
 if eval "test \"`echo '$''{'gdb_cv_struct_reg_r_fs'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 6800 "configure"
+#line 6855 "configure"
 #include "confdefs.h"
 #include <machine/reg.h>
 int main() {
 struct reg r; r.r_fs;
 ; return 0; }
 EOF
-if { (eval echo configure:6807: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:6862: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   gdb_cv_struct_reg_r_fs=yes
 else
@@ -6823,19 +6878,19 @@ EOF
 
 fi
 echo $ac_n "checking for r_gs in struct reg""... $ac_c" 1>&6
-echo "configure:6827: checking for r_gs in struct reg" >&5
+echo "configure:6882: checking for r_gs in struct reg" >&5
 if eval "test \"`echo '$''{'gdb_cv_struct_reg_r_gs'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 6832 "configure"
+#line 6887 "configure"
 #include "confdefs.h"
 #include <machine/reg.h>
 int main() {
 struct reg r; r.r_gs;
 ; return 0; }
 EOF
-if { (eval echo configure:6839: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:6894: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   gdb_cv_struct_reg_r_gs=yes
 else
@@ -6857,19 +6912,19 @@ fi
 
 # See if <sys/ptrace.h> provides the PTRACE_GETREGS request.
 echo $ac_n "checking for PTRACE_GETREGS""... $ac_c" 1>&6
-echo "configure:6861: checking for PTRACE_GETREGS" >&5
+echo "configure:6916: checking for PTRACE_GETREGS" >&5
 if eval "test \"`echo '$''{'gdb_cv_have_ptrace_getregs'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 6866 "configure"
+#line 6921 "configure"
 #include "confdefs.h"
 #include <sys/ptrace.h>
 int main() {
 PTRACE_GETREGS;
 ; return 0; }
 EOF
-if { (eval echo configure:6873: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:6928: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   gdb_cv_have_ptrace_getregs=yes
 else
@@ -6891,19 +6946,19 @@ fi
 
 # See if <sys/ptrace.h> provides the PTRACE_GETFPXREGS request.
 echo $ac_n "checking for PTRACE_GETFPXREGS""... $ac_c" 1>&6
-echo "configure:6895: checking for PTRACE_GETFPXREGS" >&5
+echo "configure:6950: checking for PTRACE_GETFPXREGS" >&5
 if eval "test \"`echo '$''{'gdb_cv_have_ptrace_getfpxregs'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 6900 "configure"
+#line 6955 "configure"
 #include "confdefs.h"
 #include <sys/ptrace.h>
 int main() {
 PTRACE_GETFPXREGS;
 ; return 0; }
 EOF
-if { (eval echo configure:6907: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:6962: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   gdb_cv_have_ptrace_getfpxregs=yes
 else
@@ -6925,12 +6980,12 @@ fi
 
 # See if <sys/ptrace.h> provides the PT_GETDBREGS request.
 echo $ac_n "checking for PT_GETDBREGS""... $ac_c" 1>&6
-echo "configure:6929: checking for PT_GETDBREGS" >&5
+echo "configure:6984: checking for PT_GETDBREGS" >&5
 if eval "test \"`echo '$''{'gdb_cv_have_pt_getdbregs'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 6934 "configure"
+#line 6989 "configure"
 #include "confdefs.h"
 #include <sys/types.h>
 #include <sys/ptrace.h>
@@ -6938,7 +6993,7 @@ int main() {
 PT_GETDBREGS;
 ; return 0; }
 EOF
-if { (eval echo configure:6942: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:6997: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   gdb_cv_have_pt_getdbregs=yes
 else
@@ -6960,12 +7015,12 @@ fi
 
 # See if <sys/ptrace.h> provides the PT_GETXMMREGS request.
 echo $ac_n "checking for PT_GETXMMREGS""... $ac_c" 1>&6
-echo "configure:6964: checking for PT_GETXMMREGS" >&5
+echo "configure:7019: checking for PT_GETXMMREGS" >&5
 if eval "test \"`echo '$''{'gdb_cv_have_pt_getxmmregs'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 6969 "configure"
+#line 7024 "configure"
 #include "confdefs.h"
 #include <sys/types.h>
 #include <sys/ptrace.h>
@@ -6973,7 +7028,7 @@ int main() {
 PT_GETXMMREGS;
 ; return 0; }
 EOF
-if { (eval echo configure:6977: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:7032: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   gdb_cv_have_pt_getxmmregs=yes
 else
@@ -6996,19 +7051,19 @@ fi
 # See if stdint.h provides the uintptr_t type.
 # Autoconf 2.5X has an improved AC_CHECK_TYPE which will simplify this.
 echo $ac_n "checking for uintptr_t in stdint.h""... $ac_c" 1>&6
-echo "configure:7000: checking for uintptr_t in stdint.h" >&5
+echo "configure:7055: checking for uintptr_t in stdint.h" >&5
 if eval "test \"`echo '$''{'gdb_cv_have_uintptr_t'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 7005 "configure"
+#line 7060 "configure"
 #include "confdefs.h"
 #include <stdint.h>
 int main() {
 uintptr_t foo = 0;
 ; return 0; }
 EOF
-if { (eval echo configure:7012: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:7067: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   gdb_cv_have_uintptr_t=yes
 else
@@ -7030,12 +7085,12 @@ EOF
 fi
 
 echo $ac_n "checking whether malloc must be declared""... $ac_c" 1>&6
-echo "configure:7034: checking whether malloc must be declared" >&5
+echo "configure:7089: checking whether malloc must be declared" >&5
 if eval "test \"`echo '$''{'bfd_cv_decl_needed_malloc'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 7039 "configure"
+#line 7094 "configure"
 #include "confdefs.h"
 
 #include <stdio.h>
@@ -7056,7 +7111,7 @@ int main() {
 char *(*pfn) = (char *(*)) malloc
 ; return 0; }
 EOF
-if { (eval echo configure:7060: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:7115: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   bfd_cv_decl_needed_malloc=no
 else
@@ -7077,12 +7132,12 @@ EOF
 fi
 
 echo $ac_n "checking whether realloc must be declared""... $ac_c" 1>&6
-echo "configure:7081: checking whether realloc must be declared" >&5
+echo "configure:7136: checking whether realloc must be declared" >&5
 if eval "test \"`echo '$''{'bfd_cv_decl_needed_realloc'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 7086 "configure"
+#line 7141 "configure"
 #include "confdefs.h"
 
 #include <stdio.h>
@@ -7103,7 +7158,7 @@ int main() {
 char *(*pfn) = (char *(*)) realloc
 ; return 0; }
 EOF
-if { (eval echo configure:7107: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:7162: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   bfd_cv_decl_needed_realloc=no
 else
@@ -7124,12 +7179,12 @@ EOF
 fi
 
 echo $ac_n "checking whether free must be declared""... $ac_c" 1>&6
-echo "configure:7128: checking whether free must be declared" >&5
+echo "configure:7183: checking whether free must be declared" >&5
 if eval "test \"`echo '$''{'bfd_cv_decl_needed_free'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 7133 "configure"
+#line 7188 "configure"
 #include "confdefs.h"
 
 #include <stdio.h>
@@ -7150,7 +7205,7 @@ int main() {
 char *(*pfn) = (char *(*)) free
 ; return 0; }
 EOF
-if { (eval echo configure:7154: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:7209: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   bfd_cv_decl_needed_free=no
 else
@@ -7171,12 +7226,12 @@ EOF
 fi
 
 echo $ac_n "checking whether strerror must be declared""... $ac_c" 1>&6
-echo "configure:7175: checking whether strerror must be declared" >&5
+echo "configure:7230: checking whether strerror must be declared" >&5
 if eval "test \"`echo '$''{'bfd_cv_decl_needed_strerror'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 7180 "configure"
+#line 7235 "configure"
 #include "confdefs.h"
 
 #include <stdio.h>
@@ -7197,7 +7252,7 @@ int main() {
 char *(*pfn) = (char *(*)) strerror
 ; return 0; }
 EOF
-if { (eval echo configure:7201: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:7256: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   bfd_cv_decl_needed_strerror=no
 else
@@ -7218,12 +7273,12 @@ EOF
 fi
 
 echo $ac_n "checking whether strdup must be declared""... $ac_c" 1>&6
-echo "configure:7222: checking whether strdup must be declared" >&5
+echo "configure:7277: checking whether strdup must be declared" >&5
 if eval "test \"`echo '$''{'bfd_cv_decl_needed_strdup'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 7227 "configure"
+#line 7282 "configure"
 #include "confdefs.h"
 
 #include <stdio.h>
@@ -7244,7 +7299,7 @@ int main() {
 char *(*pfn) = (char *(*)) strdup
 ; return 0; }
 EOF
-if { (eval echo configure:7248: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:7303: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   bfd_cv_decl_needed_strdup=no
 else
@@ -7265,12 +7320,12 @@ EOF
 fi
 
 echo $ac_n "checking whether strstr must be declared""... $ac_c" 1>&6
-echo "configure:7269: checking whether strstr must be declared" >&5
+echo "configure:7324: checking whether strstr must be declared" >&5
 if eval "test \"`echo '$''{'bfd_cv_decl_needed_strstr'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 7274 "configure"
+#line 7329 "configure"
 #include "confdefs.h"
 
 #include <stdio.h>
@@ -7291,7 +7346,7 @@ int main() {
 char *(*pfn) = (char *(*)) strstr
 ; return 0; }
 EOF
-if { (eval echo configure:7295: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:7350: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   bfd_cv_decl_needed_strstr=no
 else
@@ -7312,12 +7367,12 @@ EOF
 fi
 
 echo $ac_n "checking whether canonicalize_file_name must be declared""... $ac_c" 1>&6
-echo "configure:7316: checking whether canonicalize_file_name must be declared" >&5
+echo "configure:7371: checking whether canonicalize_file_name must be declared" >&5
 if eval "test \"`echo '$''{'bfd_cv_decl_needed_canonicalize_file_name'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 7321 "configure"
+#line 7376 "configure"
 #include "confdefs.h"
 
 #include <stdio.h>
@@ -7338,7 +7393,7 @@ int main() {
 char *(*pfn) = (char *(*)) canonicalize_file_name
 ; return 0; }
 EOF
-if { (eval echo configure:7342: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:7397: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   bfd_cv_decl_needed_canonicalize_file_name=no
 else
@@ -7364,9 +7419,9 @@ fi
 # could be expunged. --jsm 1999-03-22
 
 echo $ac_n "checking for HPUX save_state structure""... $ac_c" 1>&6
-echo "configure:7368: checking for HPUX save_state structure" >&5
+echo "configure:7423: checking for HPUX save_state structure" >&5
 cat > conftest.$ac_ext <<EOF
-#line 7370 "configure"
+#line 7425 "configure"
 #include "confdefs.h"
 #include <machine/save_state.h>
 EOF
@@ -7381,7 +7436,7 @@ fi
 rm -f conftest*
 
 cat > conftest.$ac_ext <<EOF
-#line 7385 "configure"
+#line 7440 "configure"
 #include "confdefs.h"
 #include <machine/save_state.h>
 EOF
@@ -7451,12 +7506,12 @@ fi
 
 if test "$ac_cv_header_sys_procfs_h" = yes; then
   echo $ac_n "checking for pstatus_t in sys/procfs.h""... $ac_c" 1>&6
-echo "configure:7455: checking for pstatus_t in sys/procfs.h" >&5
+echo "configure:7510: checking for pstatus_t in sys/procfs.h" >&5
  if eval "test \"`echo '$''{'bfd_cv_have_sys_procfs_type_pstatus_t'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 7460 "configure"
+#line 7515 "configure"
 #include "confdefs.h"
 
 #define _SYSCALL32
@@ -7465,7 +7520,7 @@ int main() {
 pstatus_t avar
 ; return 0; }
 EOF
-if { (eval echo configure:7469: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:7524: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   bfd_cv_have_sys_procfs_type_pstatus_t=yes
 else
@@ -7487,12 +7542,12 @@ EOF
  echo "$ac_t""$bfd_cv_have_sys_procfs_type_pstatus_t" 1>&6
 
   echo $ac_n "checking for prrun_t in sys/procfs.h""... $ac_c" 1>&6
-echo "configure:7491: checking for prrun_t in sys/procfs.h" >&5
+echo "configure:7546: checking for prrun_t in sys/procfs.h" >&5
  if eval "test \"`echo '$''{'bfd_cv_have_sys_procfs_type_prrun_t'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 7496 "configure"
+#line 7551 "configure"
 #include "confdefs.h"
 
 #define _SYSCALL32
@@ -7501,7 +7556,7 @@ int main() {
 prrun_t avar
 ; return 0; }
 EOF
-if { (eval echo configure:7505: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:7560: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   bfd_cv_have_sys_procfs_type_prrun_t=yes
 else
@@ -7523,12 +7578,12 @@ EOF
  echo "$ac_t""$bfd_cv_have_sys_procfs_type_prrun_t" 1>&6
 
   echo $ac_n "checking for gregset_t in sys/procfs.h""... $ac_c" 1>&6
-echo "configure:7527: checking for gregset_t in sys/procfs.h" >&5
+echo "configure:7582: checking for gregset_t in sys/procfs.h" >&5
  if eval "test \"`echo '$''{'bfd_cv_have_sys_procfs_type_gregset_t'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 7532 "configure"
+#line 7587 "configure"
 #include "confdefs.h"
 
 #define _SYSCALL32
@@ -7537,7 +7592,7 @@ int main() {
 gregset_t avar
 ; return 0; }
 EOF
-if { (eval echo configure:7541: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:7596: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   bfd_cv_have_sys_procfs_type_gregset_t=yes
 else
@@ -7559,12 +7614,12 @@ EOF
  echo "$ac_t""$bfd_cv_have_sys_procfs_type_gregset_t" 1>&6
 
   echo $ac_n "checking for fpregset_t in sys/procfs.h""... $ac_c" 1>&6
-echo "configure:7563: checking for fpregset_t in sys/procfs.h" >&5
+echo "configure:7618: checking for fpregset_t in sys/procfs.h" >&5
  if eval "test \"`echo '$''{'bfd_cv_have_sys_procfs_type_fpregset_t'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 7568 "configure"
+#line 7623 "configure"
 #include "confdefs.h"
 
 #define _SYSCALL32
@@ -7573,7 +7628,7 @@ int main() {
 fpregset_t avar
 ; return 0; }
 EOF
-if { (eval echo configure:7577: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:7632: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   bfd_cv_have_sys_procfs_type_fpregset_t=yes
 else
@@ -7595,12 +7650,12 @@ EOF
  echo "$ac_t""$bfd_cv_have_sys_procfs_type_fpregset_t" 1>&6
 
   echo $ac_n "checking for prgregset_t in sys/procfs.h""... $ac_c" 1>&6
-echo "configure:7599: checking for prgregset_t in sys/procfs.h" >&5
+echo "configure:7654: checking for prgregset_t in sys/procfs.h" >&5
  if eval "test \"`echo '$''{'bfd_cv_have_sys_procfs_type_prgregset_t'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 7604 "configure"
+#line 7659 "configure"
 #include "confdefs.h"
 
 #define _SYSCALL32
@@ -7609,7 +7664,7 @@ int main() {
 prgregset_t avar
 ; return 0; }
 EOF
-if { (eval echo configure:7613: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:7668: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   bfd_cv_have_sys_procfs_type_prgregset_t=yes
 else
@@ -7631,12 +7686,12 @@ EOF
  echo "$ac_t""$bfd_cv_have_sys_procfs_type_prgregset_t" 1>&6
 
   echo $ac_n "checking for prfpregset_t in sys/procfs.h""... $ac_c" 1>&6
-echo "configure:7635: checking for prfpregset_t in sys/procfs.h" >&5
+echo "configure:7690: checking for prfpregset_t in sys/procfs.h" >&5
  if eval "test \"`echo '$''{'bfd_cv_have_sys_procfs_type_prfpregset_t'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 7640 "configure"
+#line 7695 "configure"
 #include "confdefs.h"
 
 #define _SYSCALL32
@@ -7645,7 +7700,7 @@ int main() {
 prfpregset_t avar
 ; return 0; }
 EOF
-if { (eval echo configure:7649: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:7704: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   bfd_cv_have_sys_procfs_type_prfpregset_t=yes
 else
@@ -7667,12 +7722,12 @@ EOF
  echo "$ac_t""$bfd_cv_have_sys_procfs_type_prfpregset_t" 1>&6
 
   echo $ac_n "checking for prgregset32_t in sys/procfs.h""... $ac_c" 1>&6
-echo "configure:7671: checking for prgregset32_t in sys/procfs.h" >&5
+echo "configure:7726: checking for prgregset32_t in sys/procfs.h" >&5
  if eval "test \"`echo '$''{'bfd_cv_have_sys_procfs_type_prgregset32_t'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 7676 "configure"
+#line 7731 "configure"
 #include "confdefs.h"
 
 #define _SYSCALL32
@@ -7681,7 +7736,7 @@ int main() {
 prgregset32_t avar
 ; return 0; }
 EOF
-if { (eval echo configure:7685: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:7740: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   bfd_cv_have_sys_procfs_type_prgregset32_t=yes
 else
@@ -7703,12 +7758,12 @@ EOF
  echo "$ac_t""$bfd_cv_have_sys_procfs_type_prgregset32_t" 1>&6
 
   echo $ac_n "checking for prfpregset32_t in sys/procfs.h""... $ac_c" 1>&6
-echo "configure:7707: checking for prfpregset32_t in sys/procfs.h" >&5
+echo "configure:7762: checking for prfpregset32_t in sys/procfs.h" >&5
  if eval "test \"`echo '$''{'bfd_cv_have_sys_procfs_type_prfpregset32_t'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 7712 "configure"
+#line 7767 "configure"
 #include "confdefs.h"
 
 #define _SYSCALL32
@@ -7717,7 +7772,7 @@ int main() {
 prfpregset32_t avar
 ; return 0; }
 EOF
-if { (eval echo configure:7721: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:7776: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   bfd_cv_have_sys_procfs_type_prfpregset32_t=yes
 else
@@ -7739,12 +7794,12 @@ EOF
  echo "$ac_t""$bfd_cv_have_sys_procfs_type_prfpregset32_t" 1>&6
 
   echo $ac_n "checking for lwpid_t in sys/procfs.h""... $ac_c" 1>&6
-echo "configure:7743: checking for lwpid_t in sys/procfs.h" >&5
+echo "configure:7798: checking for lwpid_t in sys/procfs.h" >&5
  if eval "test \"`echo '$''{'bfd_cv_have_sys_procfs_type_lwpid_t'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 7748 "configure"
+#line 7803 "configure"
 #include "confdefs.h"
 
 #define _SYSCALL32
@@ -7753,7 +7808,7 @@ int main() {
 lwpid_t avar
 ; return 0; }
 EOF
-if { (eval echo configure:7757: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:7812: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   bfd_cv_have_sys_procfs_type_lwpid_t=yes
 else
@@ -7775,12 +7830,12 @@ EOF
  echo "$ac_t""$bfd_cv_have_sys_procfs_type_lwpid_t" 1>&6
 
   echo $ac_n "checking for psaddr_t in sys/procfs.h""... $ac_c" 1>&6
-echo "configure:7779: checking for psaddr_t in sys/procfs.h" >&5
+echo "configure:7834: checking for psaddr_t in sys/procfs.h" >&5
  if eval "test \"`echo '$''{'bfd_cv_have_sys_procfs_type_psaddr_t'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 7784 "configure"
+#line 7839 "configure"
 #include "confdefs.h"
 
 #define _SYSCALL32
@@ -7789,7 +7844,7 @@ int main() {
 psaddr_t avar
 ; return 0; }
 EOF
-if { (eval echo configure:7793: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:7848: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   bfd_cv_have_sys_procfs_type_psaddr_t=yes
 else
@@ -7811,12 +7866,12 @@ EOF
  echo "$ac_t""$bfd_cv_have_sys_procfs_type_psaddr_t" 1>&6
 
   echo $ac_n "checking for prsysent_t in sys/procfs.h""... $ac_c" 1>&6
-echo "configure:7815: checking for prsysent_t in sys/procfs.h" >&5
+echo "configure:7870: checking for prsysent_t in sys/procfs.h" >&5
  if eval "test \"`echo '$''{'bfd_cv_have_sys_procfs_type_prsysent_t'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 7820 "configure"
+#line 7875 "configure"
 #include "confdefs.h"
 
 #define _SYSCALL32
@@ -7825,7 +7880,7 @@ int main() {
 prsysent_t avar
 ; return 0; }
 EOF
-if { (eval echo configure:7829: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:7884: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   bfd_cv_have_sys_procfs_type_prsysent_t=yes
 else
@@ -7847,12 +7902,12 @@ EOF
  echo "$ac_t""$bfd_cv_have_sys_procfs_type_prsysent_t" 1>&6
 
   echo $ac_n "checking for pr_sigset_t in sys/procfs.h""... $ac_c" 1>&6
-echo "configure:7851: checking for pr_sigset_t in sys/procfs.h" >&5
+echo "configure:7906: checking for pr_sigset_t in sys/procfs.h" >&5
  if eval "test \"`echo '$''{'bfd_cv_have_sys_procfs_type_pr_sigset_t'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 7856 "configure"
+#line 7911 "configure"
 #include "confdefs.h"
 
 #define _SYSCALL32
@@ -7861,7 +7916,7 @@ int main() {
 pr_sigset_t avar
 ; return 0; }
 EOF
-if { (eval echo configure:7865: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:7920: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   bfd_cv_have_sys_procfs_type_pr_sigset_t=yes
 else
@@ -7883,12 +7938,12 @@ EOF
  echo "$ac_t""$bfd_cv_have_sys_procfs_type_pr_sigset_t" 1>&6
 
   echo $ac_n "checking for pr_sigaction64_t in sys/procfs.h""... $ac_c" 1>&6
-echo "configure:7887: checking for pr_sigaction64_t in sys/procfs.h" >&5
+echo "configure:7942: checking for pr_sigaction64_t in sys/procfs.h" >&5
  if eval "test \"`echo '$''{'bfd_cv_have_sys_procfs_type_pr_sigaction64_t'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 7892 "configure"
+#line 7947 "configure"
 #include "confdefs.h"
 
 #define _SYSCALL32
@@ -7897,7 +7952,7 @@ int main() {
 pr_sigaction64_t avar
 ; return 0; }
 EOF
-if { (eval echo configure:7901: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:7956: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   bfd_cv_have_sys_procfs_type_pr_sigaction64_t=yes
 else
@@ -7919,12 +7974,12 @@ EOF
  echo "$ac_t""$bfd_cv_have_sys_procfs_type_pr_sigaction64_t" 1>&6
 
   echo $ac_n "checking for pr_siginfo64_t in sys/procfs.h""... $ac_c" 1>&6
-echo "configure:7923: checking for pr_siginfo64_t in sys/procfs.h" >&5
+echo "configure:7978: checking for pr_siginfo64_t in sys/procfs.h" >&5
  if eval "test \"`echo '$''{'bfd_cv_have_sys_procfs_type_pr_siginfo64_t'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 7928 "configure"
+#line 7983 "configure"
 #include "confdefs.h"
 
 #define _SYSCALL32
@@ -7933,7 +7988,7 @@ int main() {
 pr_siginfo64_t avar
 ; return 0; }
 EOF
-if { (eval echo configure:7937: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:7992: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   bfd_cv_have_sys_procfs_type_pr_siginfo64_t=yes
 else
@@ -7960,7 +8015,7 @@ EOF
         
   if test $bfd_cv_have_sys_procfs_type_prfpregset_t = yes; then
     echo $ac_n "checking whether prfpregset_t type is broken""... $ac_c" 1>&6
-echo "configure:7964: checking whether prfpregset_t type is broken" >&5
+echo "configure:8019: checking whether prfpregset_t type is broken" >&5
     if eval "test \"`echo '$''{'gdb_cv_prfpregset_t_broken'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -7968,7 +8023,7 @@ else
   gdb_cv_prfpregset_t_broken=yes
 else
   cat > conftest.$ac_ext <<EOF
-#line 7972 "configure"
+#line 8027 "configure"
 #include "confdefs.h"
 #include <sys/procfs.h>
        int main ()
@@ -7978,7 +8033,7 @@ else
          return 0;
        }
 EOF
-if { (eval echo configure:7982: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
+if { (eval echo configure:8037: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
 then
   gdb_cv_prfpregset_t_broken=no
 else
@@ -8003,12 +8058,12 @@ EOF
 
   
   echo $ac_n "checking for PIOCSET ioctl entry in sys/procfs.h""... $ac_c" 1>&6
-echo "configure:8007: checking for PIOCSET ioctl entry in sys/procfs.h" >&5
+echo "configure:8062: checking for PIOCSET ioctl entry in sys/procfs.h" >&5
   if eval "test \"`echo '$''{'gdb_cv_have_procfs_piocset'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 8012 "configure"
+#line 8067 "configure"
 #include "confdefs.h"
 #include <unistd.h>
 #include <sys/types.h>
@@ -8021,7 +8076,7 @@ int main() {
   
 ; return 0; }
 EOF
-if { (eval echo configure:8025: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:8080: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   gdb_cv_have_procfs_piocset=yes
 else
@@ -8045,19 +8100,19 @@ fi
 if test ${host} = ${target} ; then
     
   echo $ac_n "checking for member l_addr in struct link_map""... $ac_c" 1>&6
-echo "configure:8049: checking for member l_addr in struct link_map" >&5
+echo "configure:8104: checking for member l_addr in struct link_map" >&5
   if eval "test \"`echo '$''{'gdb_cv_have_struct_link_map_with_l_members'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 8054 "configure"
+#line 8109 "configure"
 #include "confdefs.h"
 #include <link.h>
 int main() {
 struct link_map lm; (void) lm.l_addr;
 ; return 0; }
 EOF
-if { (eval echo configure:8061: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:8116: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   gdb_cv_have_struct_link_map_with_l_members=yes
 else
@@ -8079,12 +8134,12 @@ EOF
 
     
   echo $ac_n "checking for member lm_addr in struct link_map""... $ac_c" 1>&6
-echo "configure:8083: checking for member lm_addr in struct link_map" >&5
+echo "configure:8138: checking for member lm_addr in struct link_map" >&5
   if eval "test \"`echo '$''{'gdb_cv_have_struct_link_map_with_lm_members'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 8088 "configure"
+#line 8143 "configure"
 #include "confdefs.h"
 #include <sys/types.h>
 #include <link.h>
@@ -8092,7 +8147,7 @@ int main() {
 struct link_map lm; (void) lm.lm_addr;
 ; return 0; }
 EOF
-if { (eval echo configure:8096: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:8151: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   gdb_cv_have_struct_link_map_with_lm_members=yes
 else
@@ -8114,12 +8169,12 @@ EOF
 
     
   echo $ac_n "checking for member som_addr in struct so_map""... $ac_c" 1>&6
-echo "configure:8118: checking for member som_addr in struct so_map" >&5
+echo "configure:8173: checking for member som_addr in struct so_map" >&5
   if eval "test \"`echo '$''{'gdb_cv_have_struct_so_map_with_som_members'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 8123 "configure"
+#line 8178 "configure"
 #include "confdefs.h"
 #include <sys/types.h>
 #ifdef HAVE_NLIST_H
@@ -8130,7 +8185,7 @@ int main() {
 struct so_map lm; (void) lm.som_addr;
 ; return 0; }
 EOF
-if { (eval echo configure:8134: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:8189: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   gdb_cv_have_struct_so_map_with_som_members=yes
 else
@@ -8152,12 +8207,12 @@ EOF
 
     
   echo $ac_n "checking for struct link_map32 in sys/link.h""... $ac_c" 1>&6
-echo "configure:8156: checking for struct link_map32 in sys/link.h" >&5
+echo "configure:8211: checking for struct link_map32 in sys/link.h" >&5
   if eval "test \"`echo '$''{'gdb_cv_have_struct_link_map32'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 8161 "configure"
+#line 8216 "configure"
 #include "confdefs.h"
 #define _SYSCALL32
 #include <sys/link.h>
@@ -8165,7 +8220,7 @@ int main() {
 struct link_map32 l;
 ; return 0; }
 EOF
-if { (eval echo configure:8169: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:8224: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   gdb_cv_have_struct_link_map32=yes
 else
@@ -8192,12 +8247,12 @@ fi
 
 
 echo $ac_n "checking for long long support in compiler""... $ac_c" 1>&6
-echo "configure:8196: checking for long long support in compiler" >&5
+echo "configure:8251: checking for long long support in compiler" >&5
 if eval "test \"`echo '$''{'gdb_cv_c_long_long'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 8201 "configure"
+#line 8256 "configure"
 #include "confdefs.h"
 
 int main() {
@@ -8207,7 +8262,7 @@ int main() {
 
 ; return 0; }
 EOF
-if { (eval echo configure:8211: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:8266: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   gdb_cv_c_long_long=yes
 else
@@ -8229,7 +8284,7 @@ fi
 
 
 echo $ac_n "checking for long long support in printf""... $ac_c" 1>&6
-echo "configure:8233: checking for long long support in printf" >&5
+echo "configure:8288: checking for long long support in printf" >&5
 if eval "test \"`echo '$''{'gdb_cv_printf_has_long_long'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -8237,7 +8292,7 @@ else
   gdb_cv_printf_has_long_long=no
 else
   cat > conftest.$ac_ext <<EOF
-#line 8241 "configure"
+#line 8296 "configure"
 #include "confdefs.h"
 
 int main () {
@@ -8251,7 +8306,7 @@ int main () {
   return (strcmp ("0x0123456789abcdef", buf));
 }
 EOF
-if { (eval echo configure:8255: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
+if { (eval echo configure:8310: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
 then
   gdb_cv_printf_has_long_long=yes
 else
@@ -8275,19 +8330,19 @@ echo "$ac_t""$gdb_cv_printf_has_long_long" 1>&6
 
 
 echo $ac_n "checking for long double support in compiler""... $ac_c" 1>&6
-echo "configure:8279: checking for long double support in compiler" >&5
+echo "configure:8334: checking for long double support in compiler" >&5
 if eval "test \"`echo '$''{'ac_cv_c_long_double'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 8284 "configure"
+#line 8339 "configure"
 #include "confdefs.h"
 
 int main() {
 long double foo;
 ; return 0; }
 EOF
-if { (eval echo configure:8291: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:8346: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   ac_cv_c_long_double=yes
 else
@@ -8309,7 +8364,7 @@ fi
 
 
 echo $ac_n "checking for long double support in printf""... $ac_c" 1>&6
-echo "configure:8313: checking for long double support in printf" >&5
+echo "configure:8368: checking for long double support in printf" >&5
 if eval "test \"`echo '$''{'gdb_cv_printf_has_long_double'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -8317,7 +8372,7 @@ else
   gdb_cv_printf_has_long_double=no
 else
   cat > conftest.$ac_ext <<EOF
-#line 8321 "configure"
+#line 8376 "configure"
 #include "confdefs.h"
 
 int main () {
@@ -8327,7 +8382,7 @@ int main () {
   return (strncmp ("3.14159", buf, 7));
 }
 EOF
-if { (eval echo configure:8331: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
+if { (eval echo configure:8386: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
 then
   gdb_cv_printf_has_long_double=yes
 else
@@ -8351,7 +8406,7 @@ echo "$ac_t""$gdb_cv_printf_has_long_double" 1>&6
 
 
 echo $ac_n "checking for long double support in scanf""... $ac_c" 1>&6
-echo "configure:8355: checking for long double support in scanf" >&5
+echo "configure:8410: checking for long double support in scanf" >&5
 if eval "test \"`echo '$''{'gdb_cv_scanf_has_long_double'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -8359,7 +8414,7 @@ else
   gdb_cv_scanf_has_long_double=no
 else
   cat > conftest.$ac_ext <<EOF
-#line 8363 "configure"
+#line 8418 "configure"
 #include "confdefs.h"
 
 int main () {
@@ -8369,7 +8424,7 @@ int main () {
   return !(f > 3.14159 && f < 3.14160);
 }
 EOF
-if { (eval echo configure:8373: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
+if { (eval echo configure:8428: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
 then
   gdb_cv_scanf_has_long_double=yes
 else
@@ -8394,7 +8449,7 @@ echo "$ac_t""$gdb_cv_scanf_has_long_double" 1>&6
 case ${host_os} in
 aix*)
   echo $ac_n "checking for -bbigtoc option""... $ac_c" 1>&6
-echo "configure:8398: checking for -bbigtoc option" >&5
+echo "configure:8453: checking for -bbigtoc option" >&5
 if eval "test \"`echo '$''{'gdb_cv_bigtoc'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -8408,14 +8463,14 @@ else
 
     LDFLAGS=$LDFLAGS\ $gdb_cv_bigtoc
     cat > conftest.$ac_ext <<EOF
-#line 8412 "configure"
+#line 8467 "configure"
 #include "confdefs.h"
 
 int main() {
 int i;
 ; return 0; }
 EOF
-if { (eval echo configure:8419: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:8474: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   :
 else
   echo "configure: failed program was:" >&5
@@ -8438,7 +8493,7 @@ if test ${build} = ${host} -a ${host} = ${target} ; then
    case ${host_os} in
    hpux*)
       echo $ac_n "checking for HPUX/OSF thread support""... $ac_c" 1>&6
-echo "configure:8442: checking for HPUX/OSF thread support" >&5
+echo "configure:8497: checking for HPUX/OSF thread support" >&5
       if test -f /usr/include/dce/cma_config.h ; then
          if test "$GCC" = "yes" ; then
             echo "$ac_t""yes" 1>&6
@@ -8461,7 +8516,7 @@ EOF
       # because version 0 (present on Solaris 2.4 or earlier) doesn't have
       # the same API.
       echo $ac_n "checking for Solaris thread debugging library""... $ac_c" 1>&6
-echo "configure:8465: checking for Solaris thread debugging library" >&5
+echo "configure:8520: checking for Solaris thread debugging library" >&5
       if test -f /usr/lib/libthread_db.so.1 ; then
          echo "$ac_t""yes" 1>&6
          cat >> confdefs.h <<\EOF
@@ -8471,7 +8526,7 @@ EOF
          CONFIG_LIB_OBS="${CONFIG_LIB_OBS} sol-thread.o"
          CONFIG_SRCS="${CONFIG_SRCS} sol-thread.c"
          echo $ac_n "checking for dlopen in -ldl""... $ac_c" 1>&6
-echo "configure:8475: checking for dlopen in -ldl" >&5
+echo "configure:8530: checking for dlopen in -ldl" >&5
 ac_lib_var=`echo dl'_'dlopen | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -8479,7 +8534,7 @@ else
   ac_save_LIBS="$LIBS"
 LIBS="-ldl  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 8483 "configure"
+#line 8538 "configure"
 #include "confdefs.h"
 /* Override any gcc2 internal prototype to avoid an error.  */
 /* We use char because int might match the return type of a gcc2
@@ -8490,7 +8545,7 @@ int main() {
 dlopen()
 ; return 0; }
 EOF
-if { (eval echo configure:8494: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:8549: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_lib_$ac_lib_var=yes"
 else
@@ -8522,17 +8577,17 @@ fi
             # all symbols visible in the dynamic symbol table.
             hold_ldflags=$LDFLAGS
             echo $ac_n "checking for the ld -export-dynamic flag""... $ac_c" 1>&6
-echo "configure:8526: checking for the ld -export-dynamic flag" >&5
+echo "configure:8581: checking for the ld -export-dynamic flag" >&5
             LDFLAGS="${LDFLAGS} -Wl,-export-dynamic"
             cat > conftest.$ac_ext <<EOF
-#line 8529 "configure"
+#line 8584 "configure"
 #include "confdefs.h"
 
 int main() {
 int i;
 ; return 0; }
 EOF
-if { (eval echo configure:8536: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:8591: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   found=yes
 else
@@ -8551,13 +8606,13 @@ rm -f conftest*
 	 # Sun randomly tweaked the prototypes in <proc_service.h>
 	 # at one point.
 	 echo $ac_n "checking if <proc_service.h> is old""... $ac_c" 1>&6
-echo "configure:8555: checking if <proc_service.h> is old" >&5
+echo "configure:8610: checking if <proc_service.h> is old" >&5
 	 if eval "test \"`echo '$''{'gdb_cv_proc_service_is_old'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   
 	    cat > conftest.$ac_ext <<EOF
-#line 8561 "configure"
+#line 8616 "configure"
 #include "confdefs.h"
 
 		#include <proc_service.h>
@@ -8568,7 +8623,7 @@ int main() {
 
 ; return 0; }
 EOF
-if { (eval echo configure:8572: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:8627: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   gdb_cv_proc_service_is_old=no
 else
@@ -8594,12 +8649,12 @@ EOF
       ;;
    aix*)
       echo $ac_n "checking for AiX thread debugging library""... $ac_c" 1>&6
-echo "configure:8598: checking for AiX thread debugging library" >&5
+echo "configure:8653: checking for AiX thread debugging library" >&5
       if eval "test \"`echo '$''{'gdb_cv_have_aix_thread_debug'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 8603 "configure"
+#line 8658 "configure"
 #include "confdefs.h"
 #include <sys/pthdebug.h>
 int main() {
@@ -8608,7 +8663,7 @@ int main() {
                                     #endif
 ; return 0; }
 EOF
-if { (eval echo configure:8612: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:8667: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   gdb_cv_have_aix_thread_debug=yes
 else
@@ -8633,19 +8688,19 @@ fi
 
 if test "x$ac_cv_header_thread_db_h" = "xyes"; then
    echo $ac_n "checking whether <thread_db.h> has TD_NOTALLOC""... $ac_c" 1>&6
-echo "configure:8637: checking whether <thread_db.h> has TD_NOTALLOC" >&5
+echo "configure:8692: checking whether <thread_db.h> has TD_NOTALLOC" >&5
 if eval "test \"`echo '$''{'gdb_cv_thread_db_h_has_td_notalloc'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 8642 "configure"
+#line 8697 "configure"
 #include "confdefs.h"
 #include <thread_db.h>
 int main() {
 int i = TD_NOTALLOC;
 ; return 0; }
 EOF
-if { (eval echo configure:8649: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:8704: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   gdb_cv_thread_db_h_has_td_notalloc=yes
 else
@@ -8668,6 +8723,43 @@ EOF
 
 fi
 
+if test "x$ac_cv_header_sys_syscall_h" = "xyes"; then
+   echo $ac_n "checking whether <sys/syscall.h> has __NR_tkill""... $ac_c" 1>&6
+echo "configure:8729: checking whether <sys/syscall.h> has __NR_tkill" >&5
+if eval "test \"`echo '$''{'gdb_cv_sys_syscall_h_has_tkill'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
+  cat > conftest.$ac_ext <<EOF
+#line 8734 "configure"
+#include "confdefs.h"
+#include <sys/syscall.h>
+int main() {
+int i = __NR_tkill;
+; return 0; }
+EOF
+if { (eval echo configure:8741: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+  rm -rf conftest*
+  gdb_cv_sys_syscall_h_has_tkill=yes
+else
+  echo "configure: failed program was:" >&5
+  cat conftest.$ac_ext >&5
+  rm -rf conftest*
+  gdb_cv_sys_syscall_h_has_tkill=no
+     
+fi
+rm -f conftest*
+   
+fi
+
+echo "$ac_t""$gdb_cv_sys_syscall_h_has_tkill" 1>&6
+fi
+if test "x$gdb_cv_sys_syscall_h_has_tkill" = "xyes" && test "x$ac_cv_func_syscall" = "xyes"; then
+  cat >> confdefs.h <<\EOF
+#define HAVE_TKILL_SYSCALL 1
+EOF
+
+fi
+
 
 # Check whether --with-sysroot or --without-sysroot was given.
 if test "${with_sysroot+set}" = set; then
@@ -8756,7 +8848,7 @@ WERROR_CFLAGS=""
 if test "x${build_warnings}" != x -a "x$GCC" = xyes
 then
     echo $ac_n "checking compiler warning flags""... $ac_c" 1>&6
-echo "configure:8760: checking compiler warning flags" >&5
+echo "configure:8852: checking compiler warning flags" >&5
     # Separate out the -Werror flag as some files just cannot be
     # compiled with it enabled.
     for w in ${build_warnings}; do
@@ -8766,14 +8858,14 @@ echo "configure:8760: checking compiler warning flags" >&5
 	    saved_CFLAGS="$CFLAGS"
 	    CFLAGS="$CFLAGS $w"
 	    cat > conftest.$ac_ext <<EOF
-#line 8770 "configure"
+#line 8862 "configure"
 #include "confdefs.h"
 
 int main() {
 
 ; return 0; }
 EOF
-if { (eval echo configure:8777: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:8869: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   WARN_CFLAGS="${WARN_CFLAGS} $w"
 else
@@ -8821,12 +8913,12 @@ fi
 
 # In the Cygwin environment, we need some additional flags.
 echo $ac_n "checking for cygwin""... $ac_c" 1>&6
-echo "configure:8825: checking for cygwin" >&5
+echo "configure:8917: checking for cygwin" >&5
 if eval "test \"`echo '$''{'gdb_cv_os_cygwin'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 8830 "configure"
+#line 8922 "configure"
 #include "confdefs.h"
 
 #if defined (__CYGWIN__) || defined (__CYGWIN32__)
@@ -8904,7 +8996,7 @@ if test "${with_tclconfig+set}" = set; then
 fi
 
   echo $ac_n "checking for Tcl configuration""... $ac_c" 1>&6
-echo "configure:8908: checking for Tcl configuration" >&5
+echo "configure:9000: checking for Tcl configuration" >&5
   if eval "test \"`echo '$''{'ac_cv_c_tclconfig'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -9013,7 +9105,7 @@ if test "${with_tkconfig+set}" = set; then
 fi
 
   echo $ac_n "checking for Tk configuration""... $ac_c" 1>&6
-echo "configure:9017: checking for Tk configuration" >&5
+echo "configure:9109: checking for Tk configuration" >&5
   if eval "test \"`echo '$''{'ac_cv_c_tkconfig'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -9122,7 +9214,7 @@ fi
 
 no_tcl=true
 echo $ac_n "checking for Tcl private headers. dir=${configdir}""... $ac_c" 1>&6
-echo "configure:9126: checking for Tcl private headers. dir=${configdir}" >&5
+echo "configure:9218: checking for Tcl private headers. dir=${configdir}" >&5
 # Check whether --with-tclinclude or --without-tclinclude was given.
 if test "${with_tclinclude+set}" = set; then
   withval="$with_tclinclude"
@@ -9188,17 +9280,17 @@ fi
 if test x"${ac_cv_c_tclh}" = x ; then
    ac_safe=`echo "tclInt.h" | sed 'y%./+-%__p_%'`
 echo $ac_n "checking for tclInt.h""... $ac_c" 1>&6
-echo "configure:9192: checking for tclInt.h" >&5
+echo "configure:9284: checking for tclInt.h" >&5
 if eval "test \"`echo '$''{'ac_cv_header_$ac_safe'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 9197 "configure"
+#line 9289 "configure"
 #include "confdefs.h"
 #include <tclInt.h>
 EOF
 ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
-{ (eval echo configure:9202: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
+{ (eval echo configure:9294: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
 ac_err=`grep -v '^ *+' conftest.out | grep -v "^conftest.${ac_ext}\$"`
 if test -z "$ac_err"; then
   rm -rf conftest*
@@ -9258,7 +9350,7 @@ fi
 #
 no_tk=true
 echo $ac_n "checking for Tk private headers""... $ac_c" 1>&6
-echo "configure:9262: checking for Tk private headers" >&5
+echo "configure:9354: checking for Tk private headers" >&5
 # Check whether --with-tkinclude or --without-tkinclude was given.
 if test "${with_tkinclude+set}" = set; then
   withval="$with_tkinclude"
@@ -9324,17 +9416,17 @@ fi
 if test x"${ac_cv_c_tkh}" = x ; then
    ac_safe=`echo "tk.h" | sed 'y%./+-%__p_%'`
 echo $ac_n "checking for tk.h""... $ac_c" 1>&6
-echo "configure:9328: checking for tk.h" >&5
+echo "configure:9420: checking for tk.h" >&5
 if eval "test \"`echo '$''{'ac_cv_header_$ac_safe'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 9333 "configure"
+#line 9425 "configure"
 #include "confdefs.h"
 #include <tk.h>
 EOF
 ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
-{ (eval echo configure:9338: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
+{ (eval echo configure:9430: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
 ac_err=`grep -v '^ *+' conftest.out | grep -v "^conftest.${ac_ext}\$"`
 if test -z "$ac_err"; then
   rm -rf conftest*
@@ -9380,7 +9472,7 @@ fi
 
 	   
 echo $ac_n "checking for Itcl private headers. srcdir=${srcdir}""... $ac_c" 1>&6
-echo "configure:9384: checking for Itcl private headers. srcdir=${srcdir}" >&5
+echo "configure:9476: checking for Itcl private headers. srcdir=${srcdir}" >&5
 if test x"${ac_cv_c_itclh}" = x ; then
   for i in ${srcdir}/../itcl ${srcdir}/../../itcl ${srcdir}/../../../itcl ${srcdir}/../itcl/itcl; do
     if test -f $i/generic/itcl.h ; then
@@ -9403,7 +9495,7 @@ fi
 
 	   
 echo $ac_n "checking for Itk private headers. srcdir=${srcdir}""... $ac_c" 1>&6
-echo "configure:9407: checking for Itk private headers. srcdir=${srcdir}" >&5
+echo "configure:9499: checking for Itk private headers. srcdir=${srcdir}" >&5
 if test x"${ac_cv_c_itkh}" = x ; then
   for i in ${srcdir}/../itcl ${srcdir}/../../itcl ${srcdir}/../../../itcl ${srcdir}/../itcl/itk; do
     if test -f $i/generic/itk.h ; then
@@ -9458,7 +9550,7 @@ if test "${with_itclconfig+set}" = set; then
 fi
 
   echo $ac_n "checking for Itcl configuration""... $ac_c" 1>&6
-echo "configure:9462: checking for Itcl configuration" >&5
+echo "configure:9554: checking for Itcl configuration" >&5
   if eval "test \"`echo '$''{'ac_cv_c_itclconfig'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -9561,7 +9653,7 @@ if test "${with_itkconfig+set}" = set; then
 fi
 
   echo $ac_n "checking for Itk configuration""... $ac_c" 1>&6
-echo "configure:9565: checking for Itk configuration" >&5
+echo "configure:9657: checking for Itk configuration" >&5
   if eval "test \"`echo '$''{'ac_cv_c_itkconfig'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -9704,7 +9796,7 @@ fi
 # Uses ac_ vars as temps to allow command line to override cache and checks.
 # --without-x overrides everything else, but does not touch the cache.
 echo $ac_n "checking for X""... $ac_c" 1>&6
-echo "configure:9708: checking for X" >&5
+echo "configure:9800: checking for X" >&5
 
 # Check whether --with-x or --without-x was given.
 if test "${with_x+set}" = set; then
@@ -9766,12 +9858,12 @@ if test "$ac_x_includes" = NO; then
 
   # First, try using that file with no special directory specified.
 cat > conftest.$ac_ext <<EOF
-#line 9770 "configure"
+#line 9862 "configure"
 #include "confdefs.h"
 #include <$x_direct_test_include>
 EOF
 ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
-{ (eval echo configure:9775: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
+{ (eval echo configure:9867: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
 ac_err=`grep -v '^ *+' conftest.out | grep -v "^conftest.${ac_ext}\$"`
 if test -z "$ac_err"; then
   rm -rf conftest*
@@ -9840,14 +9932,14 @@ if test "$ac_x_libraries" = NO; then
   ac_save_LIBS="$LIBS"
   LIBS="-l$x_direct_test_library $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 9844 "configure"
+#line 9936 "configure"
 #include "confdefs.h"
 
 int main() {
 ${x_direct_test_function}()
 ; return 0; }
 EOF
-if { (eval echo configure:9851: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:9943: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   LIBS="$ac_save_LIBS"
 # We can link X programs with no special library path.
@@ -10095,7 +10187,7 @@ fi
 # We only build gdbserver automatically if host and target are the same.
 if test "x$target" = "x$host"; then
   echo $ac_n "checking whether gdbserver is supported on this host""... $ac_c" 1>&6
-echo "configure:10099: checking whether gdbserver is supported on this host" >&5
+echo "configure:10191: checking whether gdbserver is supported on this host" >&5
   if test "x$build_gdbserver" = xyes; then
     configdirs="$configdirs gdbserver"
     echo "$ac_t""yes" 1>&6
@@ -10159,12 +10251,12 @@ fi
 
 
 echo $ac_n "checking for Cygwin environment""... $ac_c" 1>&6
-echo "configure:10163: checking for Cygwin environment" >&5
+echo "configure:10255: checking for Cygwin environment" >&5
 if eval "test \"`echo '$''{'ac_cv_cygwin'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 10168 "configure"
+#line 10260 "configure"
 #include "confdefs.h"
 
 int main() {
@@ -10175,7 +10267,7 @@ int main() {
 return __CYGWIN__;
 ; return 0; }
 EOF
-if { (eval echo configure:10179: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:10271: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   ac_cv_cygwin=yes
 else
@@ -10192,19 +10284,19 @@ echo "$ac_t""$ac_cv_cygwin" 1>&6
 CYGWIN=
 test "$ac_cv_cygwin" = yes && CYGWIN=yes
 echo $ac_n "checking for mingw32 environment""... $ac_c" 1>&6
-echo "configure:10196: checking for mingw32 environment" >&5
+echo "configure:10288: checking for mingw32 environment" >&5
 if eval "test \"`echo '$''{'ac_cv_mingw32'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 10201 "configure"
+#line 10293 "configure"
 #include "confdefs.h"
 
 int main() {
 return __MINGW32__;
 ; return 0; }
 EOF
-if { (eval echo configure:10208: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:10300: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   ac_cv_mingw32=yes
 else
@@ -10223,7 +10315,7 @@ test "$ac_cv_mingw32" = yes && MINGW32=yes
 
 
 echo $ac_n "checking for executable suffix""... $ac_c" 1>&6
-echo "configure:10227: checking for executable suffix" >&5
+echo "configure:10319: checking for executable suffix" >&5
 if eval "test \"`echo '$''{'ac_cv_exeext'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -10233,7 +10325,7 @@ else
   rm -f conftest*
   echo 'int main () { return 0; }' > conftest.$ac_ext
   ac_cv_exeext=
-  if { (eval echo configure:10237: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; }; then
+  if { (eval echo configure:10329: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; }; then
     for file in conftest.*; do
       case $file in
       *.c | *.o | *.obj | *.ilk | *.pdb) ;;
@@ -10275,7 +10367,7 @@ fi
 
 
   echo $ac_n "checking for iconv""... $ac_c" 1>&6
-echo "configure:10279: checking for iconv" >&5
+echo "configure:10371: checking for iconv" >&5
 if eval "test \"`echo '$''{'am_cv_func_iconv'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -10283,7 +10375,7 @@ else
     am_cv_func_iconv="no, consider installing GNU libiconv"
     am_cv_lib_iconv=no
     cat > conftest.$ac_ext <<EOF
-#line 10287 "configure"
+#line 10379 "configure"
 #include "confdefs.h"
 #include <stdlib.h>
 #include <iconv.h>
@@ -10293,7 +10385,7 @@ iconv_t cd = iconv_open("","");
        iconv_close(cd);
 ; return 0; }
 EOF
-if { (eval echo configure:10297: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:10389: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   am_cv_func_iconv=yes
 else
@@ -10305,7 +10397,7 @@ rm -f conftest*
       am_save_LIBS="$LIBS"
       LIBS="$LIBS -liconv"
       cat > conftest.$ac_ext <<EOF
-#line 10309 "configure"
+#line 10401 "configure"
 #include "confdefs.h"
 #include <stdlib.h>
 #include <iconv.h>
@@ -10315,7 +10407,7 @@ iconv_t cd = iconv_open("","");
          iconv_close(cd);
 ; return 0; }
 EOF
-if { (eval echo configure:10319: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:10411: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   am_cv_lib_iconv=yes
         am_cv_func_iconv=yes
@@ -10336,13 +10428,13 @@ echo "$ac_t""$am_cv_func_iconv" 1>&6
 EOF
 
     echo $ac_n "checking for iconv declaration""... $ac_c" 1>&6
-echo "configure:10340: checking for iconv declaration" >&5
+echo "configure:10432: checking for iconv declaration" >&5
     if eval "test \"`echo '$''{'am_cv_proto_iconv'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   
       cat > conftest.$ac_ext <<EOF
-#line 10346 "configure"
+#line 10438 "configure"
 #include "confdefs.h"
 
 #include <stdlib.h>
@@ -10361,7 +10453,7 @@ int main() {
 
 ; return 0; }
 EOF
-if { (eval echo configure:10365: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:10457: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   am_cv_proto_iconv_arg1=""
 else
diff --git a/gdb/configure.in b/gdb/configure.in
index 07aab35..2cf9f6c 100644
--- a/gdb/configure.in
+++ b/gdb/configure.in
@@ -384,6 +384,7 @@ AC_CHECK_FUNCS(sbrk)
 AC_CHECK_FUNCS(setpgid setpgrp)
 AC_CHECK_FUNCS(sigaction sigprocmask sigsetmask)
 AC_CHECK_FUNCS(socketpair)
+AC_CHECK_FUNCS(syscall)
 
 dnl AC_FUNC_SETPGRP does not work when cross compiling
 dnl Instead, assume we will have a prototype for setpgrp if cross compiling.
@@ -911,6 +912,24 @@ if test "x$gdb_cv_thread_db_h_has_td_notalloc" = "xyes"; then
             [Define if <thread_db.h> has the TD_NOTALLOC error code.])
 fi
 
+dnl See if we have a sys/syscall header file that has __NR_tkill.
+if test "x$ac_cv_header_sys_syscall_h" = "xyes"; then
+   AC_CACHE_CHECK([whether <sys/syscall.h> has __NR_tkill],
+                  gdb_cv_sys_syscall_h_has_tkill,
+     AC_TRY_COMPILE(
+       [#include <sys/syscall.h>],
+       [int i = __NR_tkill;],
+       gdb_cv_sys_syscall_h_has_tkill=yes,
+       gdb_cv_sys_syscall_h_has_tkill=no
+     )
+   )
+fi
+dnl See if we can issue tkill syscall.
+if test "x$gdb_cv_sys_syscall_h_has_tkill" = "xyes" && test "x$ac_cv_func_syscall" = "xyes"; then
+  AC_DEFINE(HAVE_TKILL_SYSCALL, 1,
+            [Define if we can use the tkill syscall.])
+fi
+
 dnl Handle optional features that can be enabled.
 
 AC_ARG_WITH(sysroot,
diff --git a/gdb/i386-linux-nat.c b/gdb/i386-linux-nat.c
index 1928a55..81be404 100644
--- a/gdb/i386-linux-nat.c
+++ b/gdb/i386-linux-nat.c
@@ -70,6 +70,9 @@
 /* Defines I386_LINUX_ORIG_EAX_REGNUM.  */
 #include "i386-linux-tdep.h"
 
+/* Defines ps_err_e, struct ps_prochandle.  */
+#include "gdb_proc_service.h"
+
 /* Prototypes for local functions.  */
 static void dummy_sse_values (void);
 
@@ -683,6 +686,21 @@ i386_linux_dr_set (int regnum, unsigned long value)
     perror_with_name ("Couldn't write debug register");
 }
 
+extern ps_err_e
+ps_get_thread_area(const struct ps_prochandle *ph, 
+		   lwpid_t lwpid, int idx, void **base)
+{
+  unsigned long int desc[3];
+#define PTRACE_GET_THREAD_AREA 25
+
+  if  (ptrace (PTRACE_GET_THREAD_AREA, 
+	       lwpid, (void *) idx, (unsigned long) &desc) < 0)
+    return PS_ERR;
+
+  *(int *)base = desc[1];
+  return PS_OK;
+}
+
 void
 i386_linux_dr_set_control (unsigned long control)
 {
diff --git a/gdb/lin-lwp.c b/gdb/lin-lwp.c
index c36394e..48fd516 100644
--- a/gdb/lin-lwp.c
+++ b/gdb/lin-lwp.c
@@ -24,6 +24,10 @@
 #include "gdb_string.h"
 #include <errno.h>
 #include <signal.h>
+#ifdef HAVE_TKILL_SYSCALL
+#include <unistd.h>
+#include <sys/syscall.h>
+#endif
 #include <sys/ptrace.h>
 #include "gdb_wait.h"
 
@@ -156,6 +160,7 @@ static sigset_t blocked_mask;
 
 /* Prototypes for local functions.  */
 static int stop_wait_callback (struct lwp_info *lp, void *data);
+static int lin_lwp_thread_alive (ptid_t ptid);
 
 /* Convert wait status STATUS to a string.  Used for printing debug
    messages only.  */
@@ -627,6 +632,32 @@ lin_lwp_resume (ptid_t ptid, int step, enum target_signal signo)
 }
 
 
+/* Issue kill to specified lwp.  */
+
+static int tkill_failed;
+
+static int
+kill_lwp (int lwpid, int signo)
+{
+  errno = 0;
+
+/* Use tkill, if possible, in case we are using nptl threads.  If tkill
+   fails, then we are not using nptl threads and we should be using kill.  */
+
+#ifdef HAVE_TKILL_SYSCALL
+  if (!tkill_failed)
+    {
+      int ret = syscall (__NR_tkill, lwpid, signo);
+      if (errno != ENOSYS)
+	return ret;
+      errno = 0;
+      tkill_failed = 1;
+    }
+#endif
+
+  return kill (lwpid, signo);
+}
+
 /* Send a SIGSTOP to LP.  */
 
 static int
@@ -642,8 +673,15 @@ stop_callback (struct lwp_info *lp, void *data)
 			      "SC:  kill %s **<SIGSTOP>**\n",
 			      target_pid_to_str (lp->ptid));
 	}
-      ret = kill (GET_LWP (lp->ptid), SIGSTOP);
-      gdb_assert (ret == 0);
+      errno = 0;
+      ret = kill_lwp (GET_LWP (lp->ptid), SIGSTOP);
+      if (debug_lin_lwp)
+	{
+	  fprintf_unfiltered (gdb_stdlog,
+			      "SC:  lwp kill %d %s\n",
+			      ret,
+			      errno ? safe_strerror (errno) : "ERRNO-OK");
+	}
 
       lp->signalled = 1;
       gdb_assert (lp->status == 0);
@@ -667,11 +705,23 @@ stop_wait_callback (struct lwp_info *lp, void *data)
 
       gdb_assert (lp->status == 0);
 
-      pid = waitpid (GET_LWP (lp->ptid), &status, lp->cloned ? __WCLONE : 0);
+      pid = waitpid (GET_LWP (lp->ptid), &status, 0);
       if (pid == -1 && errno == ECHILD)
-	/* OK, the proccess has disappeared.  We'll catch the actual
-	   exit event in lin_lwp_wait.  */
-	return 0;
+	{
+	  pid = waitpid (GET_LWP (lp->ptid), &status, __WCLONE);
+	  if (pid == -1 && errno == ECHILD)
+	    {
+	      /* The thread has previously exited.  We need to delete it now
+	         because in the case of nptl threads, there won't be an
+	         exit event unless it is the main thread.  */
+	      if (debug_lin_lwp)
+		fprintf_unfiltered (gdb_stdlog,
+				    "SWC: %s exited.\n",
+				    target_pid_to_str (lp->ptid));
+	      delete_lwp (lp->ptid);
+	      return 0;
+	    }
+	}
 
       gdb_assert (pid == GET_LWP (lp->ptid));
 
@@ -683,6 +733,7 @@ stop_wait_callback (struct lwp_info *lp, void *data)
 			      status_to_str (status));
 	}
 
+      /* Check if the thread has exited.  */
       if (WIFEXITED (status) || WIFSIGNALED (status))
 	{
 	  gdb_assert (num_lwps > 1);
@@ -697,7 +748,31 @@ stop_wait_callback (struct lwp_info *lp, void *data)
 				 target_pid_to_str (lp->ptid));
 	    }
 	  if (debug_lin_lwp)
-	    fprintf_unfiltered (gdb_stdlog, "SWC: %s exited.\n",
+	    fprintf_unfiltered (gdb_stdlog,
+				"SWC: %s exited.\n",
+				target_pid_to_str (lp->ptid));
+
+	  delete_lwp (lp->ptid);
+	  return 0;
+	}
+
+      /* Check if the current LWP has previously exited.  For nptl threads,
+         there is no exit signal issued for LWPs that are not the
+         main thread so we should check whenever the thread is stopped.  */
+      if (!lin_lwp_thread_alive (lp->ptid))
+	{
+	  if (in_thread_list (lp->ptid))
+	    {
+	      /* Core GDB cannot deal with us deleting the current
+	         thread.  */
+	      if (!ptid_equal (lp->ptid, inferior_ptid))
+		delete_thread (lp->ptid);
+	      printf_unfiltered ("[%s exited]\n",
+				 target_pid_to_str (lp->ptid));
+	    }
+	  if (debug_lin_lwp)
+	    fprintf_unfiltered (gdb_stdlog,
+				"SWC: %s already exited.\n",
 				target_pid_to_str (lp->ptid));
 
 	  delete_lwp (lp->ptid);
@@ -756,7 +831,14 @@ stop_wait_callback (struct lwp_info *lp, void *data)
 	      /* If there's another event, throw it back into the queue. */
 	      if (lp->status)
 		{
-		  kill (GET_LWP (lp->ptid), WSTOPSIG (lp->status));
+		  if (debug_lin_lwp)
+		    {
+		      fprintf_unfiltered (gdb_stdlog,
+					  "SWC: kill %s, %s\n",
+					  target_pid_to_str (lp->ptid),
+					  status_to_str ((int) status));
+		    }
+		  kill_lwp (GET_LWP (lp->ptid), WSTOPSIG (lp->status));
 		}
 	      /* Save the sigtrap event. */
 	      lp->status = status;
@@ -800,7 +882,7 @@ stop_wait_callback (struct lwp_info *lp, void *data)
 					  target_pid_to_str (lp->ptid),
 					  status_to_str ((int) status));
 		    }
-		  kill (GET_LWP (lp->ptid), WSTOPSIG (status));
+		  kill_lwp (GET_LWP (lp->ptid), WSTOPSIG (status));
 		}
 	      return 0;
 	    }
@@ -1049,6 +1131,25 @@ child_wait (ptid_t ptid, struct target_waitstatus *ourstatus)
 
 #endif
 
+/* Stop an active thread, verify it still exists, then resume it.  */
+
+static int
+stop_and_resume_callback (struct lwp_info *lp, void *data)
+{
+  struct lwp_info *ptr;
+
+  if (!lp->stopped && !lp->signalled)
+    {
+      stop_callback (lp, NULL);
+      stop_wait_callback (lp, NULL);
+      /* Resume if the lwp still exists.  */
+      for (ptr = lwp_list; ptr; ptr = ptr->next)
+	if (lp == ptr)
+	  resume_callback (lp, NULL);
+    }
+  return 0;
+}
+
 static ptid_t
 lin_lwp_wait (ptid_t ptid, struct target_waitstatus *ourstatus)
 {
@@ -1206,9 +1307,7 @@ retry:
 		}
 	    }
 
-	  /* Make sure we don't report a TARGET_WAITKIND_EXITED or
-	     TARGET_WAITKIND_SIGNALLED event if there are still LWP's
-	     left in the process.  */
+	  /* Check if the thread has exited.  */
 	  if ((WIFEXITED (status) || WIFSIGNALED (status)) && num_lwps > 1)
 	    {
 	      if (in_thread_list (lp->ptid))
@@ -1220,6 +1319,59 @@ retry:
 		  printf_unfiltered ("[%s exited]\n",
 				     target_pid_to_str (lp->ptid));
 		}
+
+	      /* If this is the main thread, we must stop all threads and
+	         verify if they are still alive.  This is because in the nptl
+	         thread model, there is no signal issued for exiting LWPs
+	         other than the main thread.  We only get the main thread
+	         exit signal once all child threads have already exited.
+	         If we stop all the threads and use the stop_wait_callback
+	         to check if they have exited we can determine whether this
+	         signal should be ignored or whether it means the end of the
+	         debugged application, regardless of which threading model
+	         is being used.  */
+	      if (GET_PID (lp->ptid) == GET_LWP (lp->ptid))
+		{
+		  lp->stopped = 1;
+		  iterate_over_lwps (stop_and_resume_callback, NULL);
+		}
+
+	      if (debug_lin_lwp)
+		fprintf_unfiltered (gdb_stdlog,
+				    "LLW: %s exited.\n",
+				    target_pid_to_str (lp->ptid));
+
+	      delete_lwp (lp->ptid);
+
+	      /* If there is at least one more LWP, then the exit signal
+	         was not the end of the debugged application and should be
+	         ignored.  */
+	      if (num_lwps > 0)
+		{
+		  /* Make sure there is at least one thread running.  */
+		  gdb_assert (iterate_over_lwps (running_callback, NULL));
+
+		  /* Discard the event.  */
+		  status = 0;
+		  continue;
+		}
+	    }
+
+	  /* Check if the current LWP has previously exited.  In the nptl
+	     thread model, LWPs other than the main thread do not issue
+	     signals when they exit so we must check whenever the thread
+	     has stopped.  A similar check is made in stop_wait_callback().  */
+	  if (num_lwps > 1 && !lin_lwp_thread_alive (lp->ptid))
+	    {
+	      if (in_thread_list (lp->ptid))
+		{
+		  /* Core GDB cannot deal with us deleting the current
+		     thread.  */
+		  if (!ptid_equal (lp->ptid, inferior_ptid))
+		    delete_thread (lp->ptid);
+		  printf_unfiltered ("[%s exited]\n",
+				     target_pid_to_str (lp->ptid));
+		}
 	      if (debug_lin_lwp)
 		fprintf_unfiltered (gdb_stdlog,
 				    "LLW: %s exited.\n",