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ARM: use <target/arm.h> not armv4_5.h

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Move most declarations in <target/armv4_5.h> to <target/arm.h>
and update users.

What's left in the older file is stuff that I think should be
removed ... the old register cache access stuff, which makes it
awkward to support microcontroller profile (Cortex-M) cores.

The armv4_5_run_algorithm() declaration was moved too, even
though it's not yet as generic as it probably ought to be.

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
This commit is contained in:
David Brownell
2009-12-07 14:54:13 -08:00
parent 0529c14bfe
commit 0a1b7dcfc4
24 changed files with 231 additions and 200 deletions
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171
src/target/armv4_5.h
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@@ -26,39 +26,10 @@
#ifndef ARMV4_5_H
#define ARMV4_5_H
#include <target/target.h>
#include <helper/command.h>
/**
* These numbers match the five low bits of the *PSR registers on
* "classic ARM" processors, which build on the ARMv4 processor
* modes and register set.
/* 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.
*/
enum arm_mode {
ARM_MODE_USR = 16,
ARM_MODE_FIQ = 17,
ARM_MODE_IRQ = 18,
ARM_MODE_SVC = 19,
ARM_MODE_ABT = 23,
ARM_MODE_MON = 26,
ARM_MODE_UND = 27,
ARM_MODE_SYS = 31,
ARM_MODE_ANY = -1
};
const char *arm_mode_name(unsigned psr_mode);
bool is_arm_mode(unsigned psr_mode);
/** The PSR "T" and "J" bits define the mode of "classic ARM" cores. */
enum arm_state {
ARM_STATE_ARM,
ARM_STATE_THUMB,
ARM_STATE_JAZELLE,
ARM_STATE_THUMB_EE,
};
extern const char *arm_state_strings[];
/* 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
@@ -76,140 +47,4 @@ extern const int armv4_5_core_reg_map[8][17];
/* offset into armv4_5 core register cache -- OBSOLETE, DO NOT USE! */
enum { ARMV4_5_CPSR = 31, };
#define ARM_COMMON_MAGIC 0x0A450A45
/**
* 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.
*/
struct arm
{
int common_magic;
struct reg_cache *core_cache;
/** Handle to the CPSR; valid in all core modes. */
struct reg *cpsr;
/** Handle to the SPSR; valid only in core modes with an SPSR. */
struct reg *spsr;
/** Support for arm_reg_current() */
const int *map;
/**
* Indicates what registers are in the ARM state core register set.
* ARM_MODE_ANY indicates the standard set of 37 registers,
* seen on for example ARM7TDMI cores. ARM_MODE_MON indicates three
* more registers are shadowed, for "Secure Monitor" mode.
*/
enum arm_mode core_type;
/** Record the current core mode: SVC, USR, or some other mode. */
enum arm_mode core_mode;
/** Record the current core state: ARM, Thumb, or otherwise. */
enum arm_state core_state;
/** Flag reporting unavailability of the BKPT instruction. */
bool is_armv4;
/** Flag reporting whether semihosting is active. */
bool is_semihosting;
/** Value to be returned by semihosting SYS_ERRNO request. */
int semihosting_errno;
/** Backpointer to the target. */
struct target *target;
/** Handle for the debug module, if one is present. */
struct arm_dpm *dpm;
/** Handle for the Embedded Trace Module, if one is present. */
struct etm_context *etm;
/* FIXME all these methods should take "struct arm *" not target */
/** Retrieve all core registers, for display. */
int (*full_context)(struct target *target);
/** Retrieve a single core register. */
int (*read_core_reg)(struct target *target, struct reg *reg,
int num, enum arm_mode mode);
int (*write_core_reg)(struct target *target, struct reg *reg,
int num, enum arm_mode mode, uint32_t value);
/** Read coprocessor register. */
int (*mrc)(struct target *target, int cpnum,
uint32_t op1, uint32_t op2,
uint32_t CRn, uint32_t CRm,
uint32_t *value);
/** Write coprocessor register. */
int (*mcr)(struct target *target, int cpnum,
uint32_t op1, uint32_t op2,
uint32_t CRn, uint32_t CRm,
uint32_t value);
void *arch_info;
};
/** 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 == ARM_COMMON_MAGIC;
}
struct arm_algorithm
{
int common_magic;
enum arm_mode core_mode;
enum arm_state core_state;
};
struct arm_reg
{
int num;
enum arm_mode mode;
struct target *target;
struct arm *armv4_5_common;
uint32_t value;
};
struct reg_cache *arm_build_reg_cache(struct target *target, struct arm *arm);
int arm_arch_state(struct target *target);
int arm_get_gdb_reg_list(struct target *target,
struct reg **reg_list[], int *reg_list_size);
extern const struct command_registration arm_command_handlers[];
int arm_init_arch_info(struct target *target, struct arm *arm);
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 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);
void arm_set_cpsr(struct arm *arm, uint32_t cpsr);
struct reg *arm_reg_current(struct arm *arm, unsigned regnum);
extern struct reg arm_gdb_dummy_fp_reg;
extern struct reg arm_gdb_dummy_fps_reg;
#endif /* ARMV4_5_H */