* 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/>. *
***************************************************************************/
+
#ifndef ARMV4_5_H
#define ARMV4_5_H
-#include "register.h"
-#include "target.h"
-#include "log.h"
-#include "etm.h"
-
-typedef enum armv4_5_mode
-{
- ARMV4_5_MODE_USR = 16,
- ARMV4_5_MODE_FIQ = 17,
- ARMV4_5_MODE_IRQ = 18,
- ARMV4_5_MODE_SVC = 19,
- ARMV4_5_MODE_ABT = 23,
- ARMV4_5_MODE_UND = 27,
- ARMV4_5_MODE_SYS = 31,
- ARMV4_5_MODE_ANY = -1
-} armv4_5_mode_t;
-
-extern char** armv4_5_mode_strings;
-
-typedef enum armv4_5_state
-{
- ARMV4_5_STATE_ARM,
- ARMV4_5_STATE_THUMB,
- ARMV4_5_STATE_JAZELLE,
-} armv4_5_state_t;
-
-extern char* armv4_5_state_strings[];
-
-extern int armv4_5_core_reg_map[7][17];
-
-#define ARMV4_5_CORE_REG_MODE(cache, mode, num) \
- cache->reg_list[armv4_5_core_reg_map[armv4_5_mode_to_number(mode)][num]]
-#define ARMV4_5_CORE_REG_MODENUM(cache, mode, num) \
- cache->reg_list[armv4_5_core_reg_map[mode][num]]
-
-/* offsets into armv4_5 core register cache */
-enum
-{
- ARMV4_5_CPSR = 31,
- ARMV4_5_SPSR_FIQ = 32,
- ARMV4_5_SPSR_IRQ = 33,
- ARMV4_5_SPSR_SVC = 34,
- ARMV4_5_SPSR_ABT = 35,
- ARMV4_5_SPSR_UND = 36
-};
-
-#define ARMV4_5_COMMON_MAGIC 0x0A450A45
-
-/* NOTE: this is being morphed into a generic toplevel holder for ARMs. */
-#define armv4_5_common_s arm
-
-/**
- * Represents a generic ARM core, with standard application registers.
- *
- * There are sixteen application registers (including PC, SP, LR) and a PSR.
- * Cortex-M series cores do not support as many core states or shadowed
- * registers as traditional ARM cores, and only support Thumb2 instructions.
+/* This stuff "knows" that its callers aren't talking
+ * to microcontroller profile (current Cortex-M) parts.
+ * We want to phase it out so core code can be shared.
*/
-struct arm
-{
- int common_magic;
- struct reg_cache *core_cache;
-
- int /* armv4_5_mode */ core_mode;
- enum armv4_5_state core_state;
-
- /** Flag reporting unavailability of the BKPT instruction. */
- bool is_armv4;
-
- /** Handle for the Embedded Trace Module, if one is present. */
- struct etm_context *etm;
-
- int (*full_context)(struct target *target);
- int (*read_core_reg)(struct target *target,
- int num, enum armv4_5_mode mode);
- int (*write_core_reg)(struct target *target,
- int num, enum armv4_5_mode mode, uint32_t value);
- void *arch_info;
-};
-
-#define target_to_armv4_5 target_to_arm
-
-/** Convert target handle to generic ARM target state handle. */
-static inline struct arm *target_to_arm(struct target *target)
-{
- return target->arch_info;
-}
-
-static inline bool is_arm(struct arm *arm)
-{
- return arm && arm->common_magic == ARMV4_5_COMMON_MAGIC;
-}
-
-struct armv4_5_algorithm
-{
- int common_magic;
-
- enum armv4_5_mode core_mode;
- enum armv4_5_state core_state;
-};
-
-struct armv4_5_core_reg
-{
- int num;
- enum armv4_5_mode mode;
- struct target *target;
- struct arm *armv4_5_common;
-};
-struct reg_cache* armv4_5_build_reg_cache(struct target *target,
- struct arm *armv4_5_common);
-
-/* map psr mode bits to linear number */
-static __inline int armv4_5_mode_to_number(enum armv4_5_mode mode)
-{
- switch (mode)
- {
- case ARMV4_5_MODE_USR: return 0; break;
- case ARMV4_5_MODE_FIQ: return 1; break;
- case ARMV4_5_MODE_IRQ: return 2; break;
- case ARMV4_5_MODE_SVC: return 3; break;
- case ARMV4_5_MODE_ABT: return 4; break;
- case ARMV4_5_MODE_UND: return 5; break;
- case ARMV4_5_MODE_SYS: return 6; break;
- case ARMV4_5_MODE_ANY: return 0; break; /* map MODE_ANY to user mode */
- default:
- LOG_ERROR("invalid mode value encountered %d", mode);
- return -1;
- }
-}
-
-/* map linear number to mode bits */
-static __inline enum armv4_5_mode armv4_5_number_to_mode(int number)
-{
- switch (number)
- {
- case 0: return ARMV4_5_MODE_USR; break;
- case 1: return ARMV4_5_MODE_FIQ; break;
- case 2: return ARMV4_5_MODE_IRQ; break;
- case 3: return ARMV4_5_MODE_SVC; break;
- case 4: return ARMV4_5_MODE_ABT; break;
- case 5: return ARMV4_5_MODE_UND; break;
- case 6: return ARMV4_5_MODE_SYS; break;
- default:
- LOG_ERROR("mode index out of bounds %d", number);
- return ARMV4_5_MODE_ANY;
- }
-};
-
-int armv4_5_arch_state(struct target *target);
-int armv4_5_get_gdb_reg_list(struct target *target,
- struct reg **reg_list[], int *reg_list_size);
-
-int armv4_5_register_commands(struct command_context *cmd_ctx);
-int armv4_5_init_arch_info(struct target *target, struct arm *armv4_5);
-
-int armv4_5_run_algorithm(struct target *target,
- int num_mem_params, struct mem_param *mem_params,
- int num_reg_params, struct reg_param *reg_params,
- uint32_t entry_point, uint32_t exit_point,
- int timeout_ms, void *arch_info);
-
-int armv4_5_invalidate_core_regs(struct target *target);
-
-int arm_checksum_memory(struct target *target,
- uint32_t address, uint32_t count, uint32_t *checksum);
-int arm_blank_check_memory(struct target *target,
- uint32_t address, uint32_t count, uint32_t *blank);
-
-
-/* ARM mode instructions
- */
-
-/* Store multiple increment after
- * Rn: base register
- * List: for each bit in list: store register
- * S: in priviledged mode: store user-mode registers
- * W = 1: update the base register. W = 0: leave the base register untouched
+/* OBSOLETE, DO NOT USE IN NEW CODE! The "number" of an arm_mode is an
+ * index into the armv4_5_core_reg_map array. Its remaining users are
+ * remnants which could as easily walk * the register cache directly as
+ * use the expensive ARMV4_5_CORE_REG_MODE() macro.
*/
-#define ARMV4_5_STMIA(Rn, List, S, W) (0xe8800000 | ((S) << 22) | ((W) << 21) | ((Rn) << 16) | (List))
+int arm_mode_to_number(enum arm_mode mode);
+enum arm_mode armv4_5_number_to_mode(int number);
-/* Load multiple increment after
- * Rn: base register
- * List: for each bit in list: store register
- * S: in priviledged mode: store user-mode registers
- * W = 1: update the base register. W = 0: leave the base register untouched
- */
-#define ARMV4_5_LDMIA(Rn, List, S, W) (0xe8900000 | ((S) << 22) | ((W) << 21) | ((Rn) << 16) | (List))
-
-/* MOV r8, r8 */
-#define ARMV4_5_NOP (0xe1a08008)
-
-/* Move PSR to general purpose register
- * R = 1: SPSR R = 0: CPSR
- * Rn: target register
- */
-#define ARMV4_5_MRS(Rn, R) (0xe10f0000 | ((R) << 22) | ((Rn) << 12))
-
-/* Store register
- * Rd: register to store
- * Rn: base register
- */
-#define ARMV4_5_STR(Rd, Rn) (0xe5800000 | ((Rd) << 12) | ((Rn) << 16))
-
-/* Load register
- * Rd: register to load
- * Rn: base register
- */
-#define ARMV4_5_LDR(Rd, Rn) (0xe5900000 | ((Rd) << 12) | ((Rn) << 16))
-
-/* Move general purpose register to PSR
- * R = 1: SPSR R = 0: CPSR
- * Field: Field mask
- * 1: control field 2: extension field 4: status field 8: flags field
- * Rm: source register
- */
-#define ARMV4_5_MSR_GP(Rm, Field, R) (0xe120f000 | (Rm) | ((Field) << 16) | ((R) << 22))
-#define ARMV4_5_MSR_IM(Im, Rotate, Field, R) (0xe320f000 | (Im) | ((Rotate) << 8) | ((Field) << 16) | ((R) << 22))
+extern const int armv4_5_core_reg_map[8][17];
-/* Load Register Halfword Immediate Post-Index
- * Rd: register to load
- * Rn: base register
- */
-#define ARMV4_5_LDRH_IP(Rd, Rn) (0xe0d000b2 | ((Rd) << 12) | ((Rn) << 16))
-
-/* Load Register Byte Immediate Post-Index
- * Rd: register to load
- * Rn: base register
- */
-#define ARMV4_5_LDRB_IP(Rd, Rn) (0xe4d00001 | ((Rd) << 12) | ((Rn) << 16))
-
-/* Store register Halfword Immediate Post-Index
- * Rd: register to store
- * Rn: base register
- */
-#define ARMV4_5_STRH_IP(Rd, Rn) (0xe0c000b2 | ((Rd) << 12) | ((Rn) << 16))
-
-/* Store register Byte Immediate Post-Index
- * Rd: register to store
- * Rn: base register
- */
-#define ARMV4_5_STRB_IP(Rd, Rn) (0xe4c00001 | ((Rd) << 12) | ((Rn) << 16))
-
-/* Branch (and Link)
- * Im: Branch target (left-shifted by 2 bits, added to PC)
- * L: 1: branch and link 0: branch only
- */
-#define ARMV4_5_B(Im, L) (0xea000000 | (Im) | ((L) << 24))
-
-/* Branch and exchange (ARM state)
- * Rm: register holding branch target address
- */
-#define ARMV4_5_BX(Rm) (0xe12fff10 | (Rm))
-
-/* Move to ARM register from coprocessor
- * CP: Coprocessor number
- * op1: Coprocessor opcode
- * Rd: destination register
- * CRn: first coprocessor operand
- * CRm: second coprocessor operand
- * op2: Second coprocessor opcode
- */
-#define ARMV4_5_MRC(CP, op1, Rd, CRn, CRm, op2) (0xee100010 | (CRm) | ((op2) << 5) | ((CP) << 8) | ((Rd) << 12) | ((CRn) << 16) | ((op1) << 21))
-
-/* Move to coprocessor from ARM register
- * CP: Coprocessor number
- * op1: Coprocessor opcode
- * Rd: destination register
- * CRn: first coprocessor operand
- * CRm: second coprocessor operand
- * op2: Second coprocessor opcode
- */
-#define ARMV4_5_MCR(CP, op1, Rd, CRn, CRm, op2) (0xee000010 | (CRm) | ((op2) << 5) | ((CP) << 8) | ((Rd) << 12) | ((CRn) << 16) | ((op1) << 21))
-
-/* Breakpoint instruction (ARMv5)
- * Im: 16-bit immediate
- */
-#define ARMV5_BKPT(Im) (0xe1200070 | ((Im & 0xfff0) << 8) | (Im & 0xf))
-
-
-/* Thumb mode instructions
- */
-
-/* Store register (Thumb mode)
- * Rd: source register
- * Rn: base register
- */
-#define ARMV4_5_T_STR(Rd, Rn) ((0x6000 | (Rd) | ((Rn) << 3)) | ((0x6000 | (Rd) | ((Rn) << 3)) << 16))
-
-/* Load register (Thumb state)
- * Rd: destination register
- * Rn: base register
- */
-#define ARMV4_5_T_LDR(Rd, Rn) ((0x6800 | ((Rn) << 3) | (Rd)) | ((0x6800 | ((Rn) << 3) | (Rd)) << 16))
-
-/* Load multiple (Thumb state)
- * Rn: base register
- * List: for each bit in list: store register
- */
-#define ARMV4_5_T_LDMIA(Rn, List) ((0xc800 | ((Rn) << 8) | (List)) | ((0xc800 | ((Rn) << 8) | List) << 16))
-
-/* Load register with PC relative addressing
- * Rd: register to load
- */
-#define ARMV4_5_T_LDR_PCREL(Rd) ((0x4800 | ((Rd) << 8)) | ((0x4800 | ((Rd) << 8)) << 16))
-
-/* Move hi register (Thumb mode)
- * Rd: destination register
- * Rm: source register
- */
-#define ARMV4_5_T_MOV(Rd, Rm) ((0x4600 | ((Rd) & 0x7) | (((Rd) & 0x8) << 4) | (((Rm) & 0x7) << 3) | (((Rm) & 0x8) << 3)) | ((0x4600 | ((Rd) & 0x7) | (((Rd) & 0x8) << 4) | (((Rm) & 0x7) << 3) | (((Rm) & 0x8) << 3)) << 16))
-
-/* No operation (Thumb mode)
- */
-#define ARMV4_5_T_NOP (0x46c0 | (0x46c0 << 16))
-
-/* Move immediate to register (Thumb state)
- * Rd: destination register
- * Im: 8-bit immediate value
- */
-#define ARMV4_5_T_MOV_IM(Rd, Im) ((0x2000 | ((Rd) << 8) | (Im)) | ((0x2000 | ((Rd) << 8) | (Im)) << 16))
-
-/* Branch and Exchange
- * Rm: register containing branch target
- */
-#define ARMV4_5_T_BX(Rm) ((0x4700 | ((Rm) << 3)) | ((0x4700 | ((Rm) << 3)) << 16))
-
-/* Branch (Thumb state)
- * Imm: Branch target
- */
-#define ARMV4_5_T_B(Imm) ((0xe000 | (Imm)) | ((0xe000 | (Imm)) << 16))
-
-/* Breakpoint instruction (ARMv5) (Thumb state)
- * Im: 8-bit immediate
- */
-#define ARMV5_T_BKPT(Im) ((0xbe00 | Im) | ((0xbe00 | Im) << 16))
-
-/* build basic mrc/mcr opcode */
+#define ARMV4_5_CORE_REG_MODE(cache, mode, num) \
+ (cache->reg_list[armv4_5_core_reg_map[arm_mode_to_number(mode)][num]])
-static inline uint32_t mrc_opcode(int cpnum, uint32_t op1, uint32_t op2, uint32_t CRn, uint32_t CRm)
-{
- uint32_t t = 0;
- t|=op1<<21;
- t|=op2<<5;
- t|=CRn<<16;
- t|=CRm<<0;
- return t;
-}
+/* offset into armv4_5 core register cache -- OBSOLETE, DO NOT USE! */
+enum { ARMV4_5_CPSR = 31, };
#endif /* ARMV4_5_H */
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