with this program; if not, write to the Free Software Foundation, Inc.,
59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
-/* This file is meant to be included by sim-basics.h. */
+
+/* Simulator state pseudo baseclass.
+
+ Each simulator is required to have a sim-main.h file that includes
+ sim-basics.h, defines the base type sim_cia (the data type that
+ contains the complete current instruction address information), and
+ then sim-base.h:
+
+ #include "sim-basics.h"
+ typedef address_word sim_cia;
+ #include "sim-base.h"
+
+ and defines two key simulator structures. Firstly, struct
+ _sim_cpu:
+
+ struct _sim_cpu {
+ ... simulator specific members ...
+ sim_cpu_base base;
+ };
+
+ and secondly, struct sim_state (which uses the sim_cpu structure):
+
+ struct sim_state {
+ sim_cpu cpu[MAX_NR_PROCESSORS];
+ #if (WITH_SMP)
+ #define STATE_CPU(sd,n) (&(sd)->cpu[n])
+ #else
+ #define STATE_CPU(sd,n) (&(sd)->cpu[0])
+ #endif
+ ... simulator specific members ...
+ sim_state_base base;
+ };
+
+ Note that `base' appears last. This makes `base.magic' appear last
+ in the entire struct and helps catch miscompilation errors. */
+
#ifndef SIM_BASE_H
#define SIM_BASE_H
+/* Pre-declare certain types. */
+
+/* typedef <target-dependant> sim_cia; */
+#ifndef NULL_CIA
+#define NULL_CIA ((sim_cia) 0)
+#endif
+typedef struct _sim_cpu sim_cpu;
+
+#include "sim-module.h"
+
+#include "sim-trace.h"
+#include "sim-profile.h"
+#include "sim-model.h"
+#include "sim-core.h"
+#include "sim-events.h"
+#include "sim-io.h"
+#include "sim-engine.h"
+#include "sim-watch.h"
+
+
/* Global pointer to current state while sim_resume is running.
On a machine with lots of registers, it might be possible to reserve
one of them for current_state. However on a machine with few registers
If CURRENT_STATE_REG is defined, it means current_state is living in
a global register. */
+
#ifdef CURRENT_STATE_REG
/* FIXME: wip */
#else
extern struct sim_state *current_state;
#endif
+
/* The simulator may provide different (and faster) definition. */
#ifndef CURRENT_STATE
#define CURRENT_STATE current_state
#endif
-/* Simulator state pseudo baseclass.
- Each simulator is required to have a sim-main.h file that includes
- sim-basics.h and defines struct sim_state to be:
-
- struct sim_state {
- sim_cpu cpu;
- #define STATE_CPU(sd,n) (&(sd)->cpu)
- ... simulator specific members ...
- sim_state_base base;
- };
-
- for a single processor or
-
- struct sim_state {
- sim_cpu cpu[MAX_CPUS]; -- could be also be array of pointers
- #define STATE_CPU(sd,n) (&(sd)->cpu[n])
- ... simulator specific members ...
- sim_state_base base;
- };
-
- for multiprocessors.
- Note that `base' appears last. This makes `base.magic' appear last
- in the entire struct and helps catch miscompilation errors.
-
- sim_cpu is defined to be:
-
- typedef struct _sim_cpu {
- ... simulator specific members ...
- sim_cpu_base base;
- } sim_cpu;
- */
typedef struct {
+
/* Simulator's argv[0]. */
const char *my_name;
#define STATE_MY_NAME(sd) ((sd)->base.my_name)
#define STATE_CONFIG(sd) ((sd)->base.config)
#endif
+ /* List of installed module `init' handlers. */
+ MODULE_INIT_LIST *init_list;
+#define STATE_INIT_LIST(sd) ((sd)->base.init_list)
+ /* List of installed module `uninstall' handlers. */
+ MODULE_UNINSTALL_LIST *uninstall_list;
+#define STATE_UNINSTALL_LIST(sd) ((sd)->base.uninstall_list)
+
+ /* ??? This might be more appropriate in sim_cpu. */
+ /* Machine tables for this cpu. See sim-model.h. */
+ const MODEL *model;
+#define STATE_MODEL(sd) ((sd)->base.model)
+
/* Supported options. */
struct option_list *options;
#define STATE_OPTIONS(sd) ((sd)->base.options)
int verbose_p;
#define STATE_VERBOSE_P(sd) ((sd)->base.verbose_p)
+ /* If non NULL, the BFD architecture specified on the command line */
+ const struct bfd_arch_info *architecture;
+#define STATE_ARCHITECTURE(sd) ((sd)->base.architecture)
+
+ /* If non NULL, the bfd target specified on the command line */
+ const char *target;
+#define STATE_TARGET(sd) ((sd)->base.target)
+
/* In standalone simulator, this is the program's arguments passed
on the command line. */
char **prog_argv;
SIM_ADDR start_addr;
#define STATE_START_ADDR(sd) ((sd)->base.start_addr)
+#if WITH_SCACHE
/* Size of the simulator's cache, if any.
This is not the target's cache. It is the cache the simulator uses
to process instructions. */
- unsigned int simcache_size;
-#define STATE_SIMCACHE_SIZE(sd) ((sd)->base.simcache_size)
+ unsigned int scache_size;
+#define STATE_SCACHE_SIZE(sd) ((sd)->base.scache_size)
+#endif
/* FIXME: Move to top level sim_state struct (as some struct)? */
#ifdef SIM_HAVE_FLATMEM
unsigned int mem_size;
#define STATE_MEM_SIZE(sd) ((sd)->base.mem_size)
+ unsigned int mem_base;
+#define STATE_MEM_BASE(sd) ((sd)->base.mem_base)
unsigned char *memory;
#define STATE_MEMORY(sd) ((sd)->base.memory)
#endif
+ /* core memory bus */
+#define STATE_CORE(sd) (&(sd)->base.core)
+ sim_core core;
+
+ /* event handler */
+#define STATE_EVENTS(sd) (&(sd)->base.events)
+ sim_events events;
+
+ /* generic halt/resume engine */
+ sim_engine engine;
+#define STATE_ENGINE(sd) (&(sd)->base.engine)
+
+ /* generic watchpoint support */
+ sim_watchpoints watchpoints;
+#define STATE_WATCHPOINTS(sd) (&(sd)->base.watchpoints)
+
/* Marker for those wanting to do sanity checks.
This should remain the last member of this struct to help catch
miscompilation errors. */
int magic;
#define SIM_MAGIC_NUMBER 0x4242
#define STATE_MAGIC(sd) ((sd)->base.magic)
+
} sim_state_base;
+
/* Pseudo baseclass for each cpu. */
typedef struct {
+
/* Backlink to main state struct. */
- SIM_DESC sd;
-#define CPU_STATE(cpu) ((cpu)->base.sd)
+ SIM_DESC state;
+#define CPU_STATE(cpu) ((cpu)->base.state)
- /* Maximum number of traceable entities. */
-#ifndef MAX_TRACE_VALUES
-#define MAX_TRACE_VALUES 12
-#endif
+ /* Processor specific core data */
+ sim_cpu_core core;
+#define CPU_CORE(cpu) (& (cpu)->base.core)
- /* Boolean array of specified tracing flags. */
- /* ??? It's not clear that using an array vs a bit mask is faster.
- Consider the case where one wants to test whether any of several bits
- are set. */
- char trace_flags[MAX_TRACE_VALUES];
-#define CPU_TRACE_FLAGS(cpu) ((cpu)->base.trace_flags)
- /* Standard values. */
-#define TRACE_INSN_IDX 0
-#define TRACE_DECODE_IDX 1
-#define TRACE_EXTRACT_IDX 2
-#define TRACE_LINENUM_IDX 3
-#define TRACE_MEMORY_IDX 4
-#define TRACE_MODEL_IDX 5
-#define TRACE_ALU_IDX 6
-#define TRACE_NEXT_IDX 8 /* simulator specific trace bits begin here */
-
- /* Tracing output goes to this or stdout if NULL.
- We can't store `stdout' here as stdout goes through a callback. */
- FILE *trace_file;
-#define CPU_TRACE_FILE(cpu) ((cpu)->base.trace_file)
+ /* Trace data. See sim-trace.h. */
+ TRACE_DATA trace_data;
+#define CPU_TRACE_DATA(cpu) (& (cpu)->base.trace_data)
/* Maximum number of debuggable entities.
This debugging is not intended for normal use.
FILE *debug_file;
#define CPU_DEBUG_FILE(cpu) ((cpu)->base.debug_file)
-#ifdef SIM_HAVE_PROFILE
- /* Maximum number of profilable entities. */
-#ifndef MAX_PROFILE_VALUES
-#define MAX_PROFILE_VALUES 8
-#endif
-
- /* Boolean array of specified profiling flags. */
- char profile_flags[MAX_PROFILE_VALUES];
-#define CPU_PROFILE_FLAGS(cpu) ((cpu)->base.profile_flags)
- /* Standard masks. */
-#define PROFILE_INSN_MASK 0
-#define PROFILE_MEMORY_MASK 1
-#define PROFILE_MODEL_MASK 2
-#define PROFILE_SIMCACHE_MASK 3
-#define PROFILE_NEXT_MASK 6 /* simulator specific profile bits begin here */
-
- /* PC profiling attempts to determine function usage by sampling the PC
- every so many instructions. */
-#ifdef SIM_HAVE_PROFILE_PC
- unsigned int profile_pc_freq;
-#define STATE_PROFILE_PC_FREQ(sd) ((sd)->base.profile_pc_freq)
- unsigned int profile_pc_size;
-#define STATE_PROFILE_PC_SIZE(sd) ((sd)->base.profile_pc_size)
-#endif
+ /* Profile data. See sim-profile.h. */
+ PROFILE_DATA profile_data;
+#define CPU_PROFILE_DATA(cpu) (& (cpu)->base.profile_data)
- /* Profile output goes to this or stdout if NULL.
- We can't store `stderr' here as stdout goes through a callback. */
- FILE *profile_file;
-#define CPU_PROFILE_FILE(cpu) ((cpu)->base.profile_file)
-#endif /* SIM_HAVE_PROFILE */
} sim_cpu_base;
+
/* Functions for allocating/freeing a sim_state. */
SIM_DESC sim_state_alloc PARAMS ((void));
void sim_state_free PARAMS ((SIM_DESC));
+
#endif /* SIM_BASE_H */
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