Merge GDB 7.5.1

gdb/gdbserver/linux-low.h

 /* Internal interfaces for the GNU/Linux specific target code for gdbserver.
    Copyright (C) 2002, 2004-2005, 2007-2012 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 3 of the License, or
    (at your option) any later version.
 
    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    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, see <http://www.gnu.org/licenses/>.  */
 
 #ifdef HAVE_THREAD_DB_H
 #include <thread_db.h>
 #endif
+#include <signal.h>
 
+#include "gdbthread.h"
 #include "gdb_proc_service.h"
 
+#define PTRACE_ARG3_TYPE void *
+#define PTRACE_ARG4_TYPE void *
+#define PTRACE_XFER_TYPE long
+
 #ifdef HAVE_LINUX_REGSETS
 typedef void (*regset_fill_func) (struct regcache *, void *);
 typedef void (*regset_store_func) (struct regcache *, const void *);
 enum regset_type {
   GENERAL_REGS,
   FP_REGS,
   EXTENDED_REGS,
 };
 
 struct regset_info
 {
   int get_request, set_request;
   /* If NT_TYPE isn't 0, it will be passed to ptrace as the 3rd
      argument and the 4th argument should be "const struct iovec *".  */
   int nt_type;
   int size;
   enum regset_type type;
   regset_fill_func fill_function;
   regset_store_func store_function;
 };
 extern struct regset_info target_regsets[];
 #endif
 
-struct siginfo;
-
 struct process_info_private
 {
   /* Arch-specific additions.  */
   struct arch_process_info *arch_private;
 
   /* libthread_db-specific additions.  Not NULL if this process has loaded
      thread_db, and it is active.  */
   struct thread_db *thread_db;
 
   /* &_r_debug.  0 if not yet determined.  -1 if no PT_DYNAMIC in Phdrs.  */
   CORE_ADDR r_debug;
 };
 
 struct lwp_info;
 
 struct linux_target_ops
 {
   /* Architecture-specific setup.  */
   void (*arch_setup) (void);
 
   int num_regs;
   int *regmap;
+
+  /* Regset support bitmap: 1 for registers that are transferred as a part
+     of a regset, 0 for ones that need to be handled individually.  This
+     can be NULL if all registers are transferred with regsets or regsets
+     are not supported.  */
+  unsigned char *regset_bitmap;
   int (*cannot_fetch_register) (int);
 
   /* Returns 0 if we can store the register, 1 if we can not
      store the register, and 2 if failure to store the register
      is acceptable.  */
   int (*cannot_store_register) (int);
+
+  /* Hook to fetch a register in some non-standard way.  Used for
+     example by backends that have read-only registers with hardcoded
+     values (e.g., IA64's gr0/fr0/fr1).  Returns true if register
+     REGNO was supplied, false if not, and we should fallback to the
+     standard ptrace methods.  */
+  int (*fetch_register) (struct regcache *regcache, int regno);
+
   CORE_ADDR (*get_pc) (struct regcache *regcache);
   void (*set_pc) (struct regcache *regcache, CORE_ADDR newpc);
   const unsigned char *breakpoint;
   int breakpoint_len;
   CORE_ADDR (*breakpoint_reinsert_addr) (void);
 
   int decr_pc_after_break;
   int (*breakpoint_at) (CORE_ADDR pc);
 
   /* Breakpoint and watchpoint related functions.  See target.h for
      comments.  */
   int (*insert_point) (char type, CORE_ADDR addr, int len);
   int (*remove_point) (char type, CORE_ADDR addr, int len);
   int (*stopped_by_watchpoint) (void);
   CORE_ADDR (*stopped_data_address) (void);
 
   /* Hooks to reformat register data for PEEKUSR/POKEUSR (in particular
      for registers smaller than an xfer unit).  */
   void (*collect_ptrace_register) (struct regcache *regcache,
                                    int regno, char *buf);
   void (*supply_ptrace_register) (struct regcache *regcache,
                                   int regno, const char *buf);
 
   /* Hook to convert from target format to ptrace format and back.
      Returns true if any conversion was done; false otherwise.
      If DIRECTION is 1, then copy from INF to NATIVE.
      If DIRECTION is 0, copy from NATIVE to INF.  */
-  int (*siginfo_fixup) (struct siginfo *native, void *inf, int direction);
+  int (*siginfo_fixup) (siginfo_t *native, void *inf, int direction);
 
   /* Hook to call when a new process is created or attached to.
      If extra per-process architecture-specific data is needed,
      allocate it here.  */
   struct arch_process_info * (*new_process) (void);
 
   /* Hook to call when a new thread is detected.
      If extra per-thread architecture-specific data is needed,
      allocate it here.  */
   struct arch_lwp_info * (*new_thread) (void);
@@ skipping 141 matching lines @@
      THREAD_KNOWN is set.  */
   td_thrhandle_t th;
 #endif
 
   /* Arch-specific additions.  */
   struct arch_lwp_info *arch_private;
 };
 
 extern struct inferior_list all_lwps;
 
-char *linux_child_pid_to_exec_file (int pid);
-int elf_64_file_p (const char *file);
+int linux_pid_exe_is_elf_64_file (int pid, unsigned int *machine);
 
 void linux_attach_lwp (unsigned long pid);
 struct lwp_info *find_lwp_pid (ptid_t ptid);
 void linux_stop_lwp (struct lwp_info *lwp);
 
 /* From thread-db.c  */
 int thread_db_init (int use_events);
 void thread_db_detach (struct process_info *);
 void thread_db_mourn (struct process_info *);
 int thread_db_handle_monitor_command (char *);
 int thread_db_get_tls_address (struct thread_info *thread, CORE_ADDR offset,
                                CORE_ADDR load_module, CORE_ADDR *address);
 int thread_db_look_up_one_symbol (const char *name, CORE_ADDR *addrp);