/* Common target dependent code for GDB on ARM systems.
- Copyright 2002 Free Software Foundation, Inc.
+ Copyright 2002, 2003 Free Software Foundation, Inc.
This file is part of GDB.
the user is concerned but do serve to get the desired values when
passed to read_register. */
-#define ARM_A1_REGNUM 0 /* first integer-like argument */
-#define ARM_A4_REGNUM 3 /* last integer-like argument */
-#define ARM_AP_REGNUM 11
-#define ARM_SP_REGNUM 13 /* Contains address of top of stack */
-#define ARM_LR_REGNUM 14 /* address to return to from a function call */
-#define ARM_PC_REGNUM 15 /* Contains program counter */
-#define ARM_F0_REGNUM 16 /* first floating point register */
-#define ARM_F3_REGNUM 19 /* last floating point argument register */
-#define ARM_F7_REGNUM 23 /* last floating point register */
-#define ARM_FPS_REGNUM 24 /* floating point status register */
-#define ARM_PS_REGNUM 25 /* Contains processor status */
-
-#define ARM_FP_REGNUM 11 /* Frame register in ARM code, if used. */
-#define THUMB_FP_REGNUM 7 /* Frame register in Thumb code, if used. */
-
-#define ARM_NUM_ARG_REGS 4
-#define ARM_LAST_ARG_REGNUM ARM_A4_REGNUM
-#define ARM_NUM_FP_ARG_REGS 4
-#define ARM_LAST_FP_ARG_REGNUM ARM_F3_REGNUM
+enum gdb_regnum {
+ ARM_A1_REGNUM = 0, /* first integer-like argument */
+ ARM_A4_REGNUM = 3, /* last integer-like argument */
+ ARM_AP_REGNUM = 11,
+ 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_F0_REGNUM = 16, /* first floating point register */
+ ARM_F3_REGNUM = 19, /* last floating point argument register */
+ ARM_F7_REGNUM = 23, /* last floating point register */
+ ARM_FPS_REGNUM = 24, /* floating point status register */
+ ARM_PS_REGNUM = 25, /* Contains processor status */
+ 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_ARG_REGNUM = ARM_A4_REGNUM,
+ ARM_NUM_FP_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 FLAG_C 0x20000000
#define FLAG_V 0x10000000
+/* Type of floating-point code in use by inferior. There are really 3 models
+ that are traditionally supported (plus the endianness issue), but gcc can
+ 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.
+
+ If you update this enum, don't forget to update fp_model_strings in
+ arm-tdep.c. */
+
+enum arm_float_model
+{
+ 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. */
+};
+
+/* A method to the setting based on user's choice and ABI setting. */
+enum arm_float_model arm_get_fp_model (struct gdbarch *);
+
+/* Target-dependent structure in gdbarch. */
+struct gdbarch_tdep
+{
+ enum arm_float_model fp_model; /* Floating point calling conventions. */
+
+ CORE_ADDR lowest_pc; /* Lowest address at which instructions
+ will appear. */
+
+ const char *arm_breakpoint; /* Breakpoint pattern for an ARM insn. */
+ int arm_breakpoint_size; /* And its size. */
+ const char *thumb_breakpoint; /* Breakpoint pattern for an ARM insn. */
+ int thumb_breakpoint_size; /* And its size. */
+
+ int jb_pc; /* Offset to PC value in jump buffer.
+ If this is negative, longjmp support
+ will be disabled. */
+ size_t jb_elt_size; /* And the size of each entry in the buf. */
+};
+
+#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);