Update.

2002-08-23  Ulrich Drepper  <drepper@redhat.com>

	* pthread.c (__linuxthreads_version): New global constant.

5 files changed, 28 insertions, 2 deletions

diff --git a/linuxthreads_db/ChangeLog b/linuxthreads_db/ChangeLog
index f8028b4fcc..a869c3c90a 100644
--- a/linuxthreads_db/ChangeLog
+++ b/linuxthreads_db/ChangeLog
@@ -1,3 +1,11 @@
+2002-08-23  Ulrich Drepper  <drepper@redhat.com>
+
+	* thread_dbP.h: Define LINUXTHREADS_VERSION.
+	* td_symbol_list.c (symbol_list_arr): Add LINUXTHREADS_VERSION string.
+	* td_ta_new.c (td_ta_new): After verifying the thread library is
+	there check version.
+	* thread_db.h: Add new error TD_VERSION.
+
 2002-08-21  Roland McGrath  <roland@redhat.com>
 
 	* td_thr_tls_get_addr.c (td_thr_tls_get_addr): __attribute_used__ ->
diff --git a/linuxthreads_db/td_symbol_list.c b/linuxthreads_db/td_symbol_list.c
index 813261875c..2e8edeca4f 100644
--- a/linuxthreads_db/td_symbol_list.c
+++ b/linuxthreads_db/td_symbol_list.c
@@ -37,6 +37,7 @@ static const char *symbol_list_arr[] =
   [LINUXTHREADS_DEATH_EVENT] = "__linuxthreads_death_event",
   [LINUXTHREADS_REAP_EVENT] = "__linuxthreads_reap_event",
   [LINUXTHREADS_INITIAL_REPORT_EVENTS] = "__linuxthreads_initial_report_events",
+  [LINUXTHREADS_VERSION] = "__linuxthreads_version",
   [NUM_MESSAGES] = NULL
 };
 
diff --git a/linuxthreads_db/td_ta_new.c b/linuxthreads_db/td_ta_new.c
index 7505f53e63..50ddf0acc3 100644
--- a/linuxthreads_db/td_ta_new.c
+++ b/linuxthreads_db/td_ta_new.c
@@ -1,5 +1,5 @@
 /* Attach to target process.
-   Copyright (C) 1999, 2001 Free Software Foundation, Inc.
+   Copyright (C) 1999, 2001, 2002 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Ulrich Drepper <drepper@cygnus.com>, 1999.
 
@@ -20,6 +20,8 @@
 
 #include <stddef.h>
 #include <stdlib.h>
+#include <string.h>
+#include <version.h>
 
 #include "thread_dbP.h"
 
@@ -33,6 +35,8 @@ td_err_e
 td_ta_new (struct ps_prochandle *ps, td_thragent_t **ta)
 {
   psaddr_t addr;
+  psaddr_t versaddr;
+  char versbuf[sizeof (VERSION)];
   struct agent_list *elemp;
 
   LOG ("td_ta_new");
@@ -43,6 +47,17 @@ td_ta_new (struct ps_prochandle *ps, td_thragent_t **ta)
   if (td_lookup (ps, PTHREAD_THREADS_EVENTS, &addr) != PS_OK)
     return TD_NOLIBTHREAD;
 
+  /* Check whether the versions match.  */
+  if (td_lookup (ps, LINUXTHREADS_VERSION, &versaddr) != PS_OK)
+    return TD_VERSION;
+  if (ps_pdread (ps, versaddr, versbuf, sizeof (versbuf)) != PS_OK)
+    return TD_ERR;
+
+  versbuf[sizeof (versbuf) - 1] = '\0';
+  if (strcmp (versbuf, VERSION) != 0)
+    /* Not the right version.  */
+    return TD_VERSION;
+
   /* Fill in the appropriate information.  */
   *ta = (td_thragent_t *) malloc (sizeof (td_thragent_t));
   if (*ta == NULL)
diff --git a/linuxthreads_db/thread_db.h b/linuxthreads_db/thread_db.h
index 65cdb84886..906f48cd6e 100644
--- a/linuxthreads_db/thread_db.h
+++ b/linuxthreads_db/thread_db.h
@@ -52,7 +52,8 @@ typedef enum
   TD_MALLOC,	  /* Out of memory.  */
   TD_PARTIALREG,  /* Not entire register set was read or written.  */
   TD_NOXREGS,	  /* X register set not available for given thread.  */
-  TD_NOTALLOC	  /* TLS memory not yet allocated.  */
+  TD_NOTALLOC,	  /* TLS memory not yet allocated.  */
+  TD_VERSION	  /* Version if libpthread and libthread_db do not match.  */
 } td_err_e;
 
 
diff --git a/linuxthreads_db/thread_dbP.h b/linuxthreads_db/thread_dbP.h
index 85222abdf3..8e0a78a3ac 100644
--- a/linuxthreads_db/thread_dbP.h
+++ b/linuxthreads_db/thread_dbP.h
@@ -24,6 +24,7 @@ enum
     LINUXTHREADS_DEATH_EVENT,
     LINUXTHREADS_REAP_EVENT,
     LINUXTHREADS_INITIAL_REPORT_EVENTS,
+    LINUXTHREADS_VERSION,
     NUM_MESSAGES
   };