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.

1 files changed, 6 insertions, 0 deletions

diff --git a/gdb/config.in b/gdb/config.in
index 450051976a..9fddbef4b5 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