/* 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
+};
/* 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 FLAG_C 0x20000000
#define FLAG_V 0x10000000
-/* ABI variants that we know about. If you add to this enum, please
- update the table of names in tm-arm.c. */
-enum arm_abi
+/* 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_ABI_UNKNOWN = 0,
- ARM_ABI_EABI_V1,
- ARM_ABI_EABI_V2,
- ARM_ABI_LINUX,
- ARM_ABI_NETBSD_AOUT,
- ARM_ABI_NETBSD_ELF,
- ARM_ABI_APCS,
- ARM_ABI_FREEBSD,
- ARM_ABI_WINCE,
+ 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. */
+};
- ARM_ABI_INVALID /* Keep this last. */
+/* ABI used by the inferior. */
+enum arm_abi_kind
+{
+ ARM_ABI_AUTO,
+ ARM_ABI_APCS,
+ ARM_ABI_AAPCS,
+ ARM_ABI_LAST
};
/* Target-dependent structure in gdbarch. */
struct gdbarch_tdep
{
- enum arm_abi arm_abi; /* OS/ABI of inferior. */
- const char *abi_name; /* Name of the above. */
+ /* 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. */
+
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
CORE_ADDR thumb_get_next_pc (CORE_ADDR);
CORE_ADDR arm_get_next_pc (CORE_ADDR);
-
-/* How a OS variant tells the ARM generic code that it can handle an ABI
- type. */
-void
-arm_gdbarch_register_os_abi (enum arm_abi abi,
- void (*init_abi)(struct gdbarch_info,
- struct gdbarch *));
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