X-Git-Url: http://drtracing.org/?a=blobdiff_plain;f=gdb%2Farch-utils.h;h=77ee9af2bfc9ad2e376071161bdf0b2d6f9279b5;hb=e98ee8c458f3a8405eb93e71b00f801b4bbe3635;hp=625a37e6c8c257771c9c640d9938e668bb6dbf64;hpb=93ce7684566b4347cf4135f828dcffdb48417ebb;p=deliverable%2Fbinutils-gdb.git

diff --git a/gdb/arch-utils.h b/gdb/arch-utils.h
index 625a37e6c8..77ee9af2bf 100644
--- a/gdb/arch-utils.h
+++ b/gdb/arch-utils.h
@@ -1,13 +1,12 @@
 /* Dynamic architecture support for GDB, the GNU debugger.
 
-   Copyright (C) 1998, 1999, 2000, 2002, 2003, 2004, 2007
-   Free Software Foundation, Inc.
+   Copyright (C) 1998-2018 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,
@@ -16,9 +15,7 @@
    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/>.  */
 
 #ifndef GDBARCH_UTILS_H
 #define GDBARCH_UTILS_H
@@ -28,66 +25,132 @@ struct frame_info;
 struct minimal_symbol;
 struct type;
 struct gdbarch_info;
-
-/* gdbarch trace variable */
-extern int gdbarch_debug;
-
-/* An implementation of return_value that props up architectures still
-   using USE_STRUCT_RETURN, EXTRACT_RETURN_VALUE and
-   STORE_RETURN_VALUE.  See also the hacks in "stack.c".  */
-enum return_value_convention legacy_return_value (struct gdbarch *gdbarch,
-						  struct type *valtype,
-						  struct regcache *regcache,
-						  gdb_byte *readbuf,
-						  const gdb_byte *writebuf);
-
-/* To return any structure or union type by value, store it at the
-   address passed as an invisible first argument to the function.  */
-extern gdbarch_deprecated_use_struct_convention_ftype always_use_struct_convention;
-
-/* The only possible cases for inner_than. */
+struct dwarf2_frame_state;
+
+template <size_t bp_size, const gdb_byte *break_insn>
+struct bp_manipulation
+{
+  static int
+  kind_from_pc (struct gdbarch *gdbarch, CORE_ADDR *pcptr)
+  {
+    return bp_size;
+  }
+
+  static const gdb_byte *
+  bp_from_kind (struct gdbarch *gdbarch, int kind, int *size)
+  {
+    *size = kind;
+    return break_insn;
+  }
+};
+
+template <size_t bp_size,
+	  const gdb_byte *break_insn_little,
+	  const gdb_byte *break_insn_big>
+struct bp_manipulation_endian
+{
+  static int
+  kind_from_pc (struct gdbarch *gdbarch, CORE_ADDR *pcptr)
+  {
+    return bp_size;
+  }
+
+  static const gdb_byte *
+  bp_from_kind (struct gdbarch *gdbarch, int kind, int *size)
+  {
+    *size = kind;
+    if (gdbarch_byte_order (gdbarch) == BFD_ENDIAN_BIG)
+      return break_insn_big;
+    else
+      return break_insn_little;
+  }
+};
+
+#define BP_MANIPULATION(BREAK_INSN) \
+  bp_manipulation<sizeof (BREAK_INSN), BREAK_INSN>
+
+#define BP_MANIPULATION_ENDIAN(BREAK_INSN_LITTLE, BREAK_INSN_BIG) \
+  bp_manipulation_endian<sizeof (BREAK_INSN_LITTLE),		  \
+  BREAK_INSN_LITTLE, BREAK_INSN_BIG>
+
+/* Default implementation of gdbarch_displaced_hw_singlestep.  */
+extern int
+  default_displaced_step_hw_singlestep (struct gdbarch *,
+					struct displaced_step_closure *);
+
+/* Possible value for gdbarch_displaced_step_location:
+   Place displaced instructions at the program's entry point,
+   leaving space for inferior function call return breakpoints.  */
+extern CORE_ADDR displaced_step_at_entry_point (struct gdbarch *gdbarch);
+
+/* The only possible cases for inner_than.  */
 extern int core_addr_lessthan (CORE_ADDR lhs, CORE_ADDR rhs);
 extern int core_addr_greaterthan (CORE_ADDR lhs, CORE_ADDR rhs);
 
 /* Identity functions on a CORE_ADDR.  Just return the "addr".  */
 
-extern CORE_ADDR core_addr_identity (CORE_ADDR addr);
+extern CORE_ADDR core_addr_identity (struct gdbarch *gdbarch, CORE_ADDR addr);
 extern gdbarch_convert_from_func_ptr_addr_ftype convert_from_func_ptr_addr_identity;
 
-/* No-op conversion of reg to regnum. */
+/* No-op conversion of reg to regnum.  */
 
-extern int no_op_reg_to_regnum (int reg);
+extern int no_op_reg_to_regnum (struct gdbarch *gdbarch, int reg);
 
-/* Do nothing version of elf_make_msymbol_special. */
+/* Do nothing version of coff_make_msymbol_special.  */
 
-void default_elf_make_msymbol_special (asymbol *sym, struct minimal_symbol *msym);
+void default_coff_make_msymbol_special (int val, struct minimal_symbol *msym);
 
-/* Do nothing version of coff_make_msymbol_special. */
+/* Do nothing default implementation of gdbarch_make_symbol_special.  */
 
-void default_coff_make_msymbol_special (int val, struct minimal_symbol *msym);
+void default_make_symbol_special (struct symbol *sym, struct objfile *objfile);
+
+/* Do nothing default implementation of gdbarch_adjust_dwarf2_addr.  */
+
+CORE_ADDR default_adjust_dwarf2_addr (CORE_ADDR pc);
+
+/* Do nothing default implementation of gdbarch_adjust_dwarf2_line.  */
+
+CORE_ADDR default_adjust_dwarf2_line (CORE_ADDR addr, int rel);
+
+/* Default DWARF vendor CFI handler.  */
+
+bool default_execute_dwarf_cfa_vendor_op (struct gdbarch *gdbarch, gdb_byte op,
+					  struct dwarf2_frame_state *fs);
 
 /* Version of cannot_fetch_register() / cannot_store_register() that
-   always fails. */
+   always fails.  */
 
-int cannot_register_not (int regnum);
+int cannot_register_not (struct gdbarch *gdbarch, int regnum);
 
 /* Legacy version of target_virtual_frame_pointer().  Assumes that
-   there is an DEPRECATED_FP_REGNUM and that it is the same, cooked or
+   there is an gdbarch_deprecated_fp_regnum and that it is the same, cooked or
    raw.  */
 
 extern gdbarch_virtual_frame_pointer_ftype legacy_virtual_frame_pointer;
 
-extern CORE_ADDR generic_skip_trampoline_code (CORE_ADDR pc);
+/* Default implementation of gdbarch_floatformat_for_type.  */
+extern const struct floatformat **
+  default_floatformat_for_type (struct gdbarch *gdbarch,
+				const char *name, int len);
+
+extern CORE_ADDR generic_skip_trampoline_code (struct frame_info *frame,
+					       CORE_ADDR pc);
 
 extern CORE_ADDR generic_skip_solib_resolver (struct gdbarch *gdbarch,
 					      CORE_ADDR pc);
 
-extern int generic_in_solib_return_trampoline (CORE_ADDR pc, char *name);
+extern int generic_in_solib_return_trampoline (struct gdbarch *gdbarch,
+					       CORE_ADDR pc, const char *name);
+
+extern int generic_stack_frame_destroyed_p (struct gdbarch *gdbarch,
+					    CORE_ADDR pc);
 
-extern int generic_in_function_epilogue_p (struct gdbarch *gdbarch, CORE_ADDR pc);
+extern int default_code_of_frame_writable (struct gdbarch *gdbarch,
+					   struct frame_info *frame);
 
 /* By default, registers are not convertible.  */
-extern int generic_convert_register_p (int regnum, struct type *type);
+extern int generic_convert_register_p (struct gdbarch *gdbarch, int regnum,
+				       struct type *type);
 
 extern int default_stabs_argument_has_addr (struct gdbarch *gdbarch,
 					    struct type *type);
@@ -102,7 +165,7 @@ int default_remote_register_number (struct gdbarch *gdbarch,
    (LEGACY_SIM_REGNO_IGNORE) when the register doesn't have a valid
    name.  */
 
-extern int legacy_register_sim_regno (int regnum);
+extern int legacy_register_sim_regno (struct gdbarch *gdbarch, int regnum);
 
 /* Return the selected byte order, or BFD_ENDIAN_UNKNOWN if no byte
    order was explicitly selected.  */
@@ -128,4 +191,84 @@ extern void gdbarch_info_fill (struct gdbarch_info *info);
 
 extern struct gdbarch *gdbarch_from_bfd (bfd *abfd);
 
+/* Return "current" architecture.  If the target is running, this is the
+   architecture of the selected frame.  Otherwise, the "current" architecture
+   defaults to the target architecture.
+
+   This function should normally be called solely by the command interpreter
+   routines to determine the architecture to execute a command in.  */
+extern struct gdbarch *get_current_arch (void);
+
+extern int default_has_shared_address_space (struct gdbarch *);
+
+extern int default_fast_tracepoint_valid_at (struct gdbarch *gdbarch,
+					     CORE_ADDR addr, std::string *msg);
+
+extern const gdb_byte *default_breakpoint_from_pc (struct gdbarch *gdbarch,
+						   CORE_ADDR *pcptr,
+						   int *lenptr);
+
+extern int default_breakpoint_kind_from_current_state (struct gdbarch *gdbarch,
+						       struct regcache *regcache,
+						       CORE_ADDR *pcptr);
+
+extern void default_gen_return_address (struct gdbarch *gdbarch,
+					struct agent_expr *ax,
+					struct axs_value *value,
+					CORE_ADDR scope);
+
+extern const char *default_auto_charset (void);
+extern const char *default_auto_wide_charset (void);
+
+extern int default_return_in_first_hidden_param_p (struct gdbarch *,
+						   struct type *);
+
+extern int default_insn_is_call (struct gdbarch *, CORE_ADDR);
+extern int default_insn_is_ret (struct gdbarch *, CORE_ADDR);
+extern int default_insn_is_jump (struct gdbarch *, CORE_ADDR);
+
+/* Do-nothing version of vsyscall_range.  Returns false.  */
+
+extern int default_vsyscall_range (struct gdbarch *gdbarch, struct mem_range *range);
+
+/* Default way to advance the PC to the next instruction in order to
+   skip a permanent breakpoint.  Increments the PC by the size of a
+   software breakpoint instruction, as determined with
+   gdbarch_breakpoint_from_pc.  This matches how the breakpoints
+   module determines whether a breakpoint is permanent.  */
+extern void default_skip_permanent_breakpoint (struct regcache *regcache);
+
+/* Symbols for gdbarch_infcall_mmap; their Linux PROT_* system
+   definitions would be dependent on compilation host.  */
+#define GDB_MMAP_PROT_READ	0x1	/* Page can be read.  */
+#define GDB_MMAP_PROT_WRITE	0x2	/* Page can be written.  */
+#define GDB_MMAP_PROT_EXEC	0x4	/* Page can be executed.  */
+
+extern CORE_ADDR default_infcall_mmap (CORE_ADDR size, unsigned prot);
+extern void default_infcall_munmap (CORE_ADDR addr, CORE_ADDR size);
+extern char *default_gcc_target_options (struct gdbarch *gdbarch);
+extern const char *default_gnu_triplet_regexp (struct gdbarch *gdbarch);
+extern int default_addressable_memory_unit_size (struct gdbarch *gdbarch);
+
+extern void default_guess_tracepoint_registers (struct gdbarch *gdbarch,
+						struct regcache *regcache,
+						CORE_ADDR addr);
+
+extern int default_print_insn (bfd_vma memaddr, disassemble_info *info);
+
+/* Wrapper to gdbarch_skip_prologue, but doesn't throw exception.  Catch
+   exception thrown from gdbarch_skip_prologue, and return PC.  */
+
+extern CORE_ADDR gdbarch_skip_prologue_noexcept (gdbarch *gdbarch,
+						 CORE_ADDR pc) noexcept;
+
+/* Default implementation of gdbarch_in_indirect_branch_thunk that returns
+   false.  */
+extern bool default_in_indirect_branch_thunk (gdbarch *gdbarch,
+					      CORE_ADDR pc);
+
+/* Default implementation of gdbarch type_align method.  */
+extern ULONGEST default_type_align (struct gdbarch *gdbarch,
+				    struct type *type);
+
 #endif