/* Common target dependent code for GDB on ARM systems.
- Copyright 2002 Free Software Foundation, Inc.
+ Copyright (C) 2002, 2003, 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,
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., 59 Temple Place - Suite 330,
- Boston, MA 02111-1307, USA. */
+ along with this program. If not, see <http://www.gnu.org/licenses/>. */
-#include "osabi.h"
+#ifndef ARM_TDEP_H
+#define ARM_TDEP_H
-/* Register numbers of various important registers. Note that some of
- these values are "real" register numbers, and correspond to the
- general registers of the machine, and some are "phony" register
- numbers which are too large to be actual register numbers as far as
- the user is concerned but do serve to get the desired values when
- passed to read_register. */
+/* Forward declarations. */
+struct gdbarch;
+struct regset;
+
+/* Register numbers of various important registers. */
enum gdb_regnum {
ARM_A1_REGNUM = 0, /* first integer-like argument */
ARM_A4_REGNUM = 3, /* last integer-like argument */
ARM_AP_REGNUM = 11,
+ ARM_IP_REGNUM = 12,
ARM_SP_REGNUM = 13, /* Contains address of top of stack */
ARM_LR_REGNUM = 14, /* address to return to from a function call */
ARM_PC_REGNUM = 15, /* Contains program counter */
ARM_F7_REGNUM = 23, /* last floating point register */
ARM_FPS_REGNUM = 24, /* floating point status register */
ARM_PS_REGNUM = 25, /* Contains processor status */
+ ARM_WR0_REGNUM, /* WMMX data registers. */
+ ARM_WR15_REGNUM = ARM_WR0_REGNUM + 15,
+ ARM_WC0_REGNUM, /* WMMX control registers. */
+ ARM_WCSSF_REGNUM = ARM_WC0_REGNUM + 2,
+ ARM_WCASF_REGNUM = ARM_WC0_REGNUM + 3,
+ ARM_WC7_REGNUM = ARM_WC0_REGNUM + 7,
+ ARM_WCGR0_REGNUM, /* WMMX general purpose registers. */
+ ARM_WCGR3_REGNUM = ARM_WCGR0_REGNUM + 3,
+ ARM_WCGR7_REGNUM = ARM_WCGR0_REGNUM + 7,
+
+ ARM_NUM_REGS,
+
+ /* Other useful registers. */
ARM_FP_REGNUM = 11, /* Frame register in ARM code, if used. */
THUMB_FP_REGNUM = 7, /* Frame register in Thumb code, if used. */
ARM_NUM_ARG_REGS = 4,
ARM_LAST_FP_ARG_REGNUM = ARM_F3_REGNUM
};
-/* Used in target-specific code when we need to know the size of the
- largest type of register we need to handle. */
-#define ARM_MAX_REGISTER_RAW_SIZE 12
-#define ARM_MAX_REGISTER_VIRTUAL_SIZE 8
-
/* Size of integer registers. */
-#define INT_REGISTER_RAW_SIZE 4
-#define INT_REGISTER_VIRTUAL_SIZE 4
+#define INT_REGISTER_SIZE 4
/* Say how long FP registers are. Used for documentation purposes and
code readability in this header. IEEE extended doubles are 80
bits. DWORD aligned they use 96 bits. */
-#define FP_REGISTER_RAW_SIZE 12
-
-/* GCC doesn't support long doubles (extended IEEE values). The FP
- register virtual size is therefore 64 bits. Used for documentation
- purposes and code readability in this header. */
-#define FP_REGISTER_VIRTUAL_SIZE 8
+#define FP_REGISTER_SIZE 12
/* Status registers are the same size as general purpose registers.
Used for documentation purposes and code readability in this
#define STATUS_REGISTER_SIZE 4
/* Number of machine registers. The only define actually required
- is NUM_REGS. The other definitions are used for documentation
+ is gdbarch_num_regs. The other definitions are used for documentation
purposes and code readability. */
/* For 26 bit ARM code, a fake copy of the PC is placed in register 25 (PS)
(and called PS for processor status) so the status bits can be cleared
only generate 2 of those. The third is APCS_FLOAT, where arguments to
functions are passed in floating-point registers.
- In addition to the traditional models, VFP adds two more. */
+ In addition to the traditional models, VFP adds two more.
+
+ If you update this enum, don't forget to update fp_model_strings in
+ arm-tdep.c. */
enum arm_float_model
{
- ARM_FLOAT_SOFT,
- ARM_FLOAT_FPA,
- ARM_FLOAT_SOFT_VFP,
- ARM_FLOAT_VFP
+ ARM_FLOAT_AUTO, /* Automatic detection. Do not set in tdep. */
+ ARM_FLOAT_SOFT_FPA, /* Traditional soft-float (mixed-endian on LE ARM). */
+ ARM_FLOAT_FPA, /* FPA co-processor. GCC calling convention. */
+ ARM_FLOAT_SOFT_VFP, /* Soft-float with pure-endian doubles. */
+ ARM_FLOAT_VFP, /* Full VFP calling convention. */
+ ARM_FLOAT_LAST /* Keep at end. */
+};
+
+/* ABI used by the inferior. */
+enum arm_abi_kind
+{
+ ARM_ABI_AUTO,
+ ARM_ABI_APCS,
+ ARM_ABI_AAPCS,
+ ARM_ABI_LAST
+};
+
+/* Convention for returning structures. */
+
+enum struct_return
+{
+ pcc_struct_return, /* Return "short" structures in memory. */
+ reg_struct_return /* Return "short" structures in registers. */
};
/* Target-dependent structure in gdbarch. */
struct gdbarch_tdep
{
- enum gdb_osabi osabi; /* OS/ABI of inferior. */
+ /* The ABI for this architecture. It should never be set to
+ ARM_ABI_AUTO. */
+ enum arm_abi_kind arm_abi;
enum arm_float_model fp_model; /* Floating point calling conventions. */
+ int have_fpa_registers; /* Does the target report the FPA registers? */
+
CORE_ADDR lowest_pc; /* Lowest address at which instructions
will appear. */
If this is negative, longjmp support
will be disabled. */
size_t jb_elt_size; /* And the size of each entry in the buf. */
+
+ /* Convention for returning structures. */
+ enum struct_return struct_return;
+
+ /* Cached core file helpers. */
+ struct regset *gregset, *fpregset;
};
-#ifndef LOWEST_PC
-#define LOWEST_PC (gdbarch_tdep (current_gdbarch)->lowest_pc)
-#endif
-/* Prototypes for internal interfaces needed by more than one MD file. */
-int arm_pc_is_thumb_dummy (CORE_ADDR);
+CORE_ADDR arm_skip_stub (struct frame_info *, CORE_ADDR);
+CORE_ADDR arm_get_next_pc (struct frame_info *, CORE_ADDR);
+int arm_software_single_step (struct frame_info *);
+
+/* Functions exported from armbsd-tdep.h. */
-int arm_pc_is_thumb (CORE_ADDR);
+/* Return the appropriate register set for the core section identified
+ by SECT_NAME and SECT_SIZE. */
-CORE_ADDR thumb_get_next_pc (CORE_ADDR);
+extern const struct regset *
+ armbsd_regset_from_core_section (struct gdbarch *gdbarch,
+ const char *sect_name, size_t sect_size);
-CORE_ADDR arm_get_next_pc (CORE_ADDR);
+#endif /* arm-tdep.h */
projects / deliverable / binutils-gdb.git / blobdiff