* gdbarch.sh: Document the return_value method. Explain that

[deliverable/binutils-gdb.git] / gdb / gdbserver / linux-low.h

diff --git a/gdb/gdbserver/linux-low.h b/gdb/gdbserver/linux-low.h
index 516b40d871782503ddda5207aad750a112e9ce04..78734e76b6973aac3fa0440f8da53d4bc61854a0 100644 (file)
--- a/gdb/gdbserver/linux-low.h
+++ b/gdb/gdbserver/linux-low.h
@@ -1,11 +1,11 @@
 /* Internal interfaces for the GNU/Linux specific target code for gdbserver.
-   Copyright (C) 2002, 2004, 2005 Free Software Foundation, Inc.
+   Copyright (C) 2002, 2004, 2005, 2007, 2008 Free Software Foundation, Inc.
 
    This file is part of GDB.
 
    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
-   the Free Software Foundation; either version 2 of the License, or
+   the Free Software Foundation; either version 3 of the License, or
    (at your option) any later version.
 
    This program is distributed in the hope that it will be useful,
@@ -14,9 +14,11 @@
    GNU General Public License for more details.
 
    You should have received a copy of the GNU General Public License
-   along with this program; if not, write to the Free Software
-   Foundation, Inc., 51 Franklin Street, Fifth Floor,
-   Boston, MA 02110-1301, USA.  */
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+
+#ifdef HAVE_THREAD_DB_H
+#include <thread_db.h>
+#endif
 
 #ifdef HAVE_LINUX_REGSETS
 typedef void (*regset_fill_func) (void *);
@@ -40,6 +42,9 @@ extern struct regset_info target_regsets[];
 
 struct linux_target_ops
 {
+  /* Architecture-specific setup.  */
+  void (*arch_setup) (void);
+
   int num_regs;
   int *regmap;
   int (*cannot_fetch_register) (int);
@@ -64,9 +69,10 @@ struct linux_target_ops
   int (*stopped_by_watchpoint) (void);
   CORE_ADDR (*stopped_data_address) (void);
 
-  /* Whether to left-pad registers for PEEKUSR/POKEUSR if they are smaller
-     than an xfer unit.  */
-  int left_pad_xfer;
+  /* Hooks to reformat register data for PEEKUSR/POKEUSR (in particular
+     for registers smaller than an xfer unit).  */
+  void (*collect_ptrace_register) (int regno, char *buf);
+  void (*supply_ptrace_register) (int regno, const char *buf);
 };
 
 extern struct linux_target_ops the_low_target;
@@ -75,26 +81,27 @@ extern struct linux_target_ops the_low_target;
 #define get_thread_process(thr) (get_process (inferior_target_data (thr)))
 #define get_process_thread(proc) ((struct thread_info *) \
                                  find_inferior_id (&all_threads, \
-                                 get_process (proc)->tid))
+                                 get_process (proc)->lwpid))
 
 struct process_info
 {
   struct inferior_list_entry head;
-  int thread_known;
   unsigned long lwpid;
-  unsigned long tid;
 
-  /* If this flag is set, the next SIGSTOP will be ignored (the process will
-     be immediately resumed).  */
+  /* If this flag is set, the next SIGSTOP will be ignored (the
+     process will be immediately resumed).  This means that either we
+     sent the SIGSTOP to it ourselves and got some other pending event
+     (so the SIGSTOP is still pending), or that we stopped the
+     inferior implicitly via PTRACE_ATTACH and have not waited for it
+     yet.  */
   int stop_expected;
 
   /* If this flag is set, the process is known to be stopped right now (stop
      event already received in a wait()).  */
   int stopped;
 
-  /* If this flag is set, we have sent a SIGSTOP to this process and are
-     waiting for it to stop.  */
-  int sigstop_sent;
+  /* When stopped is set, the last wait status recorded for this process.  */
+  int last_status;
 
   /* If this flag is set, STATUS_PENDING is a waitstatus that has not yet
      been reported.  */
@@ -121,10 +128,20 @@ struct process_info
      and then processed and cleared in linux_resume_one_process.  */
 
   struct thread_resume *resume;
+
+  int thread_known;
+  unsigned long tid;
+#ifdef HAVE_THREAD_DB_H
+  /* The thread handle, used for e.g. TLS access.  Only valid if
+     THREAD_KNOWN is set.  */
+  td_thrhandle_t th;
+#endif
 };
 
 extern struct inferior_list all_processes;
 
-void linux_attach_lwp (unsigned long pid, unsigned long tid);
+void linux_attach_lwp (unsigned long pid);
 
-int thread_db_init (void);
+int thread_db_init (int use_events);
+int thread_db_get_tls_address (struct thread_info *thread, CORE_ADDR offset,
+                              CORE_ADDR load_module, CORE_ADDR *address);