2009-08-10 Paul Pluzhnikov <ppluzhnikov@google.com>

[deliverable/binutils-gdb.git] / gdb / target.h

diff --git a/gdb/target.h b/gdb/target.h
index 89d99bba0298820639bc8bc89e21be71ac8dad29..2c743e93fcc9f0826097c09d422a1bd7432c39c4 100644 (file)
--- a/gdb/target.h
+++ b/gdb/target.h
@@ -65,7 +65,8 @@ enum strata
     core_stratum,              /* Core dump files */
     process_stratum,           /* Executing processes */
     thread_stratum,            /* Executing threads */
-    record_stratum             /* Support record debugging */
+    record_stratum,            /* Support record debugging */
+    arch_stratum               /* Architecture overrides */
   };
 
 enum thread_control_capabilities
@@ -305,7 +306,8 @@ extern char *target_read_stralloc (struct target_ops *ops,
 extern void get_target_memory (struct target_ops *ops, CORE_ADDR addr,
                               gdb_byte *buf, LONGEST len);
 extern ULONGEST get_target_memory_unsigned (struct target_ops *ops,
-                                           CORE_ADDR addr, int len);
+                                           CORE_ADDR addr, int len,
+                                           enum bfd_endian byte_order);
 \f
 struct thread_info;            /* fwd decl for parameter list below: */
 
@@ -367,11 +369,11 @@ struct target_ops
                                   struct target_ops *target);
 
     void (*to_files_info) (struct target_ops *);
-    int (*to_insert_breakpoint) (struct bp_target_info *);
-    int (*to_remove_breakpoint) (struct bp_target_info *);
+    int (*to_insert_breakpoint) (struct gdbarch *, struct bp_target_info *);
+    int (*to_remove_breakpoint) (struct gdbarch *, struct bp_target_info *);
     int (*to_can_use_hw_breakpoint) (int, int, int);
-    int (*to_insert_hw_breakpoint) (struct bp_target_info *);
-    int (*to_remove_hw_breakpoint) (struct bp_target_info *);
+    int (*to_insert_hw_breakpoint) (struct gdbarch *, struct bp_target_info *);
+    int (*to_remove_hw_breakpoint) (struct gdbarch *, struct bp_target_info *);
     int (*to_remove_watchpoint) (CORE_ADDR, int, int);
     int (*to_insert_watchpoint) (CORE_ADDR, int, int);
     int (*to_stopped_by_watchpoint) (void);
@@ -542,6 +544,18 @@ struct target_ops
        simultaneously?  */
     int (*to_supports_multi_process) (void);
 
+    /* Determine current architecture of thread PTID.
+
+       The target is supposed to determine the architecture of the code where
+       the target is currently stopped at (on Cell, if a target is in spu_run,
+       to_thread_architecture would return SPU, otherwise PPC32 or PPC64).
+       This is architecture used to perform decr_pc_after_break adjustment,
+       and also determines the frame architecture of the innermost frame.
+       ptrace operations need to operate according to target_gdbarch.
+
+       The default implementation always returns target_gdbarch.  */
+    struct gdbarch *(*to_thread_architecture) (struct target_ops *, ptid_t);
+
     int to_magic;
     /* Need sub-structure for target machine related rather than comm related?
      */
@@ -736,14 +750,14 @@ extern int inferior_has_execd (ptid_t pid, char **execd_pathname);
 /* Insert a breakpoint at address BP_TGT->placed_address in the target
    machine.  Result is 0 for success, or an errno value.  */
 
-#define        target_insert_breakpoint(bp_tgt)        \
-     (*current_target.to_insert_breakpoint) (bp_tgt)
+#define        target_insert_breakpoint(gdbarch, bp_tgt)       \
+     (*current_target.to_insert_breakpoint) (gdbarch, bp_tgt)
 
 /* Remove a breakpoint at address BP_TGT->placed_address in the target
    machine.  Result is 0 for success, or an errno value.  */
 
-#define        target_remove_breakpoint(bp_tgt)        \
-     (*current_target.to_remove_breakpoint) (bp_tgt)
+#define        target_remove_breakpoint(gdbarch, bp_tgt)       \
+     (*current_target.to_remove_breakpoint) (gdbarch, bp_tgt)
 
 /* Initialize the terminal settings we record for the inferior,
    before we actually run the inferior.  */
@@ -1039,6 +1053,11 @@ extern char *normal_pid_to_str (ptid_t ptid);
 #define target_pid_to_exec_file(pid) \
      (current_target.to_pid_to_exec_file) (pid)
 
+/* See the to_thread_architecture description in struct target_ops.  */
+
+#define target_thread_architecture(ptid) \
+     (current_target.to_thread_architecture (&current_target, ptid))
+
 /*
  * Iterator function for target memory regions.
  * Calls a callback function once for each memory region 'mapped'
@@ -1101,11 +1120,11 @@ extern char *normal_pid_to_str (ptid_t ptid);
 #define        target_remove_watchpoint(addr, len, type)       \
      (*current_target.to_remove_watchpoint) (addr, len, type)
 
-#define target_insert_hw_breakpoint(bp_tgt) \
-     (*current_target.to_insert_hw_breakpoint) (bp_tgt)
+#define target_insert_hw_breakpoint(gdbarch, bp_tgt) \
+     (*current_target.to_insert_hw_breakpoint) (gdbarch, bp_tgt)
 
-#define target_remove_hw_breakpoint(bp_tgt) \
-     (*current_target.to_remove_hw_breakpoint) (bp_tgt)
+#define target_remove_hw_breakpoint(gdbarch, bp_tgt) \
+     (*current_target.to_remove_hw_breakpoint) (gdbarch, bp_tgt)
 
 #define target_stopped_data_address(target, x) \
     (*target.to_stopped_data_address) (target, x)
@@ -1221,9 +1240,9 @@ extern struct target_section_table *target_get_section_table
 
 /* From mem-break.c */
 
-extern int memory_remove_breakpoint (struct bp_target_info *);
+extern int memory_remove_breakpoint (struct gdbarch *, struct bp_target_info *);
 
-extern int memory_insert_breakpoint (struct bp_target_info *);
+extern int memory_insert_breakpoint (struct gdbarch *, struct bp_target_info *);
 
 extern int default_memory_remove_breakpoint (struct gdbarch *, struct bp_target_info *);