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Use sim_state_alloc to create common sim object.

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This commit is contained in:
Andrew Cagney 1997-09-01 03:26:31 +00:00
parent 9f3f352539
commit 4b2a6aed84
5 changed files with 37 additions and 22 deletions
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19
sim/common/sim-base.h
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@ -21,25 +21,23 @@ with this program; if not, write to the Free Software Foundation, Inc.,
/* 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:
Each simulator is required to have the file ``sim-main.h''. That
file includes ``sim-basics.h'', defines the base type ``sim_cia''
(the data type that contains complete current instruction address
information), include ``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:
finally, two data types ``struct _sim_cpu' and ``struct sim_state'
are defined:
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)
@ -64,6 +62,9 @@ with this program; if not, write to the Free Software Foundation, Inc.,
#ifndef NULL_CIA
#define NULL_CIA ((sim_cia) 0)
#endif
#ifndef INVALID_INSTRUCTION_ADDRESS
#define INVALID_INSTRUCTION_ADDRESS ((address_word)0 - 1)
#endif
typedef struct _sim_cpu sim_cpu;
#include "sim-module.h"
@ -258,7 +259,7 @@ typedef struct {
/* Functions for allocating/freeing a sim_state. */
SIM_DESC sim_state_alloc PARAMS ((void));
SIM_DESC sim_state_alloc PARAMS ((SIM_OPEN_KIND kind, host_callback *callback));
void sim_state_free PARAMS ((SIM_DESC));