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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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10
sim/common/ChangeLog
View File

@ -1,3 +1,13 @@
Mon Sep 1 10:50:11 1997 Andrew Cagney <cagney@b1.cygnus.com>
* sim-utils.c (sim_state_alloc): Set CPU backlinks, callback and
kind.
* sim-base.h (sim_state_alloc): Add callback and kind arguments.
* sim-base.h (INVALID_INSTRUCTION_ADDRESS): Add default
definition.
Sat Aug 30 09:47:21 1997 Andrew Cagney <cagney@b1.cygnus.com>
* sim-fpu.c (DP_GARDMSB, ...): Make unsigned.

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));

15
sim/common/sim-utils.c
View File

@ -53,7 +53,8 @@ with this program; if not, write to the Free Software Foundation, Inc.,
Set by sim_resume. */
struct sim_state *current_state;
/* Allocate zero filled memory with xmalloc. */
/* Allocate zero filled memory with xmalloc - xmalloc aborts of the
allocation fails. */
void *
zalloc (unsigned long size)
@ -72,10 +73,16 @@ zfree (void *data)
/* Allocate a sim_state struct. */
SIM_DESC
sim_state_alloc (void)
sim_state_alloc (SIM_OPEN_KIND kind,
host_callback *callback)
{
SIM_DESC sd = zalloc (sizeof (struct sim_state));
sd->base.magic = SIM_MAGIC_NUMBER;
int cpu_nr;
SIM_DESC sd = ZALLOC (struct sim_state);
STATE_MAGIC (sd) = SIM_MAGIC_NUMBER;
STATE_CALLBACK (sd) = callback;
STATE_OPEN_KIND (sd) = kind;
for (cpu_nr = 0; cpu_nr < MAX_NR_PROCESSORS; cpu_nr++)
CPU_STATE (STATE_CPU (sd, cpu_nr)) = sd;
return sd;
}

5
sim/tic80/ChangeLog
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@ -1,3 +1,8 @@
Mon Sep 1 11:06:30 1997 Andrew Cagney <cagney@b1.cygnus.com>
* sim-calls.c (sim_open): Use sim_state_alloc
(simulation): Delete.
Sat Aug 30 09:40:47 1997 Andrew Cagney <cagney@b1.cygnus.com>
* insns (do_trap): Unsigned `i' for unsigned iterator.

10
sim/tic80/sim-calls.c
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@ -44,21 +44,13 @@
#define SIM_ADDR unsigned
/* Structures used by the simulator, for gdb just have static structures */
struct sim_state simulation = { 0 };
SIM_DESC
sim_open (SIM_OPEN_KIND kind,
host_callback *callback,
struct _bfd *abfd,
char **argv)
{
SIM_DESC sd = &simulation;
STATE_OPEN_KIND (sd) = kind;
STATE_MAGIC (sd) = SIM_MAGIC_NUMBER;
STATE_CALLBACK (&simulation) = callback;
SIM_DESC sd = sim_state_alloc (kind, callback);
if (sim_pre_argv_init (sd, argv[0]) != SIM_RC_OK)
return 0;