#include <signal.h>
#include <string.h>
#include <stdio.h>
+#include <stdlib.h>
+#include <time.h>
#include <sys/fcntl.h>
#include "sis.h"
#include "bfd.h"
#include <dis-asm.h>
+#include "sim-config.h"
-#include "remote-sim.h"
+#include "gdb/remote-sim.h"
#ifndef fprintf
extern fprintf();
#endif
-#define VAL(x) strtol(x,(char *)NULL,0)
+#define PSR_CWP 0x7
+
+#define VAL(x) strtol(x,(char **)NULL,0)
extern char **buildargv(char *input);
extern struct pstate sregs;
extern struct estate ebase;
+extern int current_target_byte_order;
extern int ctrl_c;
extern int nfp;
extern int ift;
extern int rom8;
extern int wrp;
+extern int uben;
extern int sis_verbose;
extern char *sis_version;
extern struct estate ebase;
extern struct irqcell irqarr[];
extern int irqpend, ext_irl;
extern int sparclite;
+extern int dumbio;
+extern int sparclite_board;
extern int termsave;
extern char uart_dev1[], uart_dev2[];
host_callback *sim_callback;
-run_sim(sregs, go, icount, dis)
+int
+run_sim(sregs, icount, dis)
struct pstate *sregs;
- int go;
unsigned int icount;
int dis;
{
- int mexc, ws;
+ int mexc, irq;
if (sis_verbose)
(*sim_callback->printf_filtered) (sim_callback, "resuming at %x\n",
sregs->pc);
init_stdio();
sregs->starttime = time(NULL);
- while ((!sregs->err_mode & (go || (icount > 0))) &&
- ((sregs->bptnum == 0) || !(sregs->bphit = check_bpt(sregs)))) {
+ irq = 0;
+ while (!sregs->err_mode & (icount > 0)) {
sregs->fhold = 0;
sregs->hold = 0;
- sregs->icnt = 0;
-
- check_interrupts(sregs);
- if (sregs->trap) {
- sregs->err_mode = execute_trap(sregs);
- } else {
- if (sregs->psr & 0x080)
- sregs->asi = 8;
- else
- sregs->asi = 9;
-
- mexc = memory_read(sregs->asi, sregs->pc, &sregs->inst, &sregs->hold);
- if (sregs->annul) {
- sregs->annul = 0;
- sregs->icnt = 1;
- sregs->pc = sregs->npc;
- sregs->npc = sregs->npc + 4;
- } else {
+ sregs->icnt = 1;
+
+ if (sregs->psr & 0x080)
+ sregs->asi = 8;
+ else
+ sregs->asi = 9;
+
+#if 0 /* DELETE ME! for debugging purposes only */
+ if (sis_verbose > 1)
+ if (sregs->pc == 0 || sregs->npc == 0)
+ printf ("bogus pc or npc\n");
+#endif
+ mexc = memory_read(sregs->asi, sregs->pc, &sregs->inst,
+ 2, &sregs->hold);
+#if 1 /* DELETE ME! for debugging purposes only */
+ if (sis_verbose > 2)
+ printf("pc %x, np %x, sp %x, fp %x, wm %x, cw %x, i %08x\n",
+ sregs->pc, sregs->npc,
+ sregs->r[(((sregs->psr & 7) << 4) + 14) & 0x7f],
+ sregs->r[(((sregs->psr & 7) << 4) + 30) & 0x7f],
+ sregs->wim,
+ sregs->psr & 7,
+ sregs->inst);
+#endif
+ if (sregs->annul) {
+ sregs->annul = 0;
+ sregs->icnt = 1;
+ sregs->pc = sregs->npc;
+ sregs->npc = sregs->npc + 4;
+ } else {
+ if (ext_irl) irq = check_interrupts(sregs);
+ if (!irq) {
if (mexc) {
sregs->trap = I_ACC_EXC;
} else {
- if (sregs->histlen) {
- sregs->histbuf[sregs->histind].addr = sregs->pc;
- sregs->histbuf[sregs->histind].time = ebase.simtime;
- sregs->histind++;
- if (sregs->histind >= sregs->histlen)
- sregs->histind = 0;
- }
- if (dis) {
- printf(" %8d ", ebase.simtime);
- dis_mem(sregs->pc, 1, &dinfo);
- }
if ((sis_gdb_break) && (sregs->inst == 0x91d02001)) {
if (sis_verbose)
(*sim_callback->printf_filtered) (sim_callback,
"SW BP hit at %x\n", sregs->pc);
+ sim_halt();
+ restore_stdio();
+ clearerr(stdin);
return (BPT_HIT);
} else
dispatch_instruction(sregs);
icount--;
}
if (sregs->trap) {
+ irq = 0;
sregs->err_mode = execute_trap(sregs);
}
}
advance_time(sregs);
if (ctrl_c) {
- go = icount = 0;
+ icount = 0;
}
}
- sim_stop();
+ sim_halt();
sregs->tottime += time(NULL) - sregs->starttime;
restore_stdio();
clearerr(stdin);
{
}
-void
-sim_open(args)
- char *args;
+SIM_DESC
+sim_open (kind, callback, abfd, argv)
+ SIM_OPEN_KIND kind;
+ struct host_callback_struct *callback;
+ struct bfd *abfd;
+ char **argv;
{
int argc = 0;
- char **argv;
- int cont = 1;
- int stat = 0;
- int grdl = 0;
- int freq = 15;
-
- (*sim_callback->printf_filtered) (sim_callback, "\n SIS - SPARC instruction simulator %s\n", sis_version);
- (*sim_callback->printf_filtered) (sim_callback, " Bug-reports to Jiri Gaisler ESA/ESTEC (jgais@wd.estec.esa.nl)\n");
- argv = buildargv(args);
- if (argv != NULL)
- while (argv[argc])
- argc++;
+ int stat = 1;
+ int freq = 0;
+
+ sim_callback = callback;
+
+ while (argv[argc])
+ argc++;
while (stat < argc) {
if (argv[stat][0] == '-') {
if (strcmp(argv[stat], "-v") == 0) {
- sis_verbose = 1;
+ sis_verbose++;
} else
if (strcmp(argv[stat], "-nfp") == 0) {
- (*sim_callback->printf_filtered) (sim_callback, "no FPU\n");
nfp = 1;
} else
if (strcmp(argv[stat], "-ift") == 0) {
ift = 1;
} else
if (strcmp(argv[stat], "-sparclite") == 0) {
- (*sim_callback->printf_filtered) (sim_callback, "simulating Sparclite\n");
sparclite = 1;
} else
+ if (strcmp(argv[stat], "-sparclite-board") == 0) {
+ sparclite_board = 1;
+ } else
+ if (strcmp(argv[stat], "-dumbio") == 0) {
+ dumbio = 1;
+ } else
if (strcmp(argv[stat], "-wrp") == 0) {
wrp = 1;
} else
if (strcmp(argv[stat], "-rom8") == 0) {
rom8 = 1;
} else
+ if (strcmp(argv[stat], "-uben") == 0) {
+ uben = 1;
+ } else
if (strcmp(argv[stat], "-uart1") == 0) {
if ((stat + 1) < argc)
strcpy(uart_dev1, argv[++stat]);
strcpy(uart_dev2, argv[++stat]);
} else
if (strcmp(argv[stat], "-nogdb") == 0) {
- (*sim_callback->printf_filtered) (sim_callback, "disabling GDB trap handling for breakpoints\n");
sis_gdb_break = 0;
} else
- if (strcmp(argv[stat], "-freq") == 0)
+ if (strcmp(argv[stat], "-freq") == 0) {
if ((stat + 1) < argc) {
freq = VAL(argv[++stat]);
- (*sim_callback->printf_filtered) (sim_callback, " ERC32 freq %d Mhz\n", freq);
}
+ } else {
+ (*sim_callback->printf_filtered) (sim_callback,
+ "unknown option %s\n",
+ argv[stat]);
+ }
} else
bfd_load(argv[stat]);
stat++;
}
- freeargv(argv);
- sregs.freq = freq;
+
+ if (sis_verbose) {
+ (*sim_callback->printf_filtered) (sim_callback, "\n SIS - SPARC instruction simulator %s\n", sis_version);
+ (*sim_callback->printf_filtered) (sim_callback, " Bug-reports to Jiri Gaisler ESA/ESTEC (jgais@wd.estec.esa.nl)\n");
+ if (nfp)
+ (*sim_callback->printf_filtered) (sim_callback, "no FPU\n");
+ if (sparclite)
+ (*sim_callback->printf_filtered) (sim_callback, "simulating Sparclite\n");
+ if (dumbio)
+ (*sim_callback->printf_filtered) (sim_callback, "dumb IO (no input, dumb output)\n");
+ if (sis_gdb_break == 0)
+ (*sim_callback->printf_filtered) (sim_callback, "disabling GDB trap handling for breakpoints\n");
+ if (freq)
+ (*sim_callback->printf_filtered) (sim_callback, " ERC32 freq %d Mhz\n", freq);
+ }
+
+ sregs.freq = freq ? freq : 15;
termsave = fcntl(0, F_GETFL, 0);
INIT_DISASSEMBLE_INFO(dinfo, stdout,(fprintf_ftype)fprintf);
- init_signals();
+ dinfo.endian = BFD_ENDIAN_BIG;
reset_all();
ebase.simtime = 0;
init_sim();
init_bpt(&sregs);
reset_stat(&sregs);
+
+ /* Fudge our descriptor for now. */
+ return (SIM_DESC) 1;
}
void
-sim_close(int quitting)
+sim_close(sd, quitting)
+ SIM_DESC sd;
+ int quitting;
{
exit_sim();
};
-/* Return non-zero if the caller should handle the load. Zero if
- we have loaded the image. */
-
-int sim_load PARAMS ((char *prog, int from_tty));
-
-int
-sim_load(prog, from_tty)
+SIM_RC
+sim_load(sd, prog, abfd, from_tty)
+ SIM_DESC sd;
char *prog;
+ bfd *abfd;
int from_tty;
{
- bfd_load(prog);
- return (0);
+ bfd_load (prog);
+ return SIM_RC_OK;
}
-void sim_create_inferior PARAMS ((SIM_ADDR start_address, char **argv, char **env));
-
-void
-sim_create_inferior(start_address, argv, env)
- SIM_ADDR start_address;
+SIM_RC
+sim_create_inferior(sd, abfd, argv, env)
+ SIM_DESC sd;
+ struct bfd *abfd;
char **argv;
char **env;
{
+ bfd_vma start_address = 0;
+ if (abfd != NULL)
+ start_address = bfd_get_start_address (abfd);
+
ebase.simtime = 0;
reset_all();
reset_stat(&sregs);
sregs.pc = start_address & ~3;
sregs.npc = sregs.pc + 4;
-
+ return SIM_RC_OK;
}
-void
-sim_store_register(regno, value)
+int
+sim_store_register(sd, regno, value, length)
+ SIM_DESC sd;
int regno;
unsigned char *value;
+ int length;
{
/* FIXME: Review the computation of regval. */
- int regval = (value[0] << 24) | (value[1] << 16) | (value[2] << 8) | value[3];
+ int regval;
+ if (current_target_byte_order == BIG_ENDIAN)
+ regval = (value[0] << 24) | (value[1] << 16)
+ | (value[2] << 8) | value[3];
+ else
+ regval = (value[3] << 24) | (value[2] << 16)
+ | (value[1] << 8) | value[0];
set_regi(&sregs, regno, regval);
+ return -1;
}
-void
-sim_fetch_register(regno, buf)
+int
+sim_fetch_register(sd, regno, buf, length)
+ SIM_DESC sd;
int regno;
unsigned char *buf;
+ int length;
{
get_regi(&sregs, regno, buf);
+ return -1;
}
int
-sim_write(mem, buf, length)
+sim_write(sd, mem, buf, length)
+ SIM_DESC sd;
SIM_ADDR mem;
unsigned char *buf;
int length;
return (sis_memory_write(mem, buf, length));
}
-int sim_read PARAMS ((SIM_ADDR mem, unsigned char *buf, int length));
-
int
-sim_read(mem, buf, length)
+sim_read(sd, mem, buf, length)
+ SIM_DESC sd;
SIM_ADDR mem;
unsigned char *buf;
int length;
}
void
-sim_info(int verbose)
+sim_info(sd, verbose)
+ SIM_DESC sd;
+ int verbose;
{
show_stat(&sregs);
-
-
}
int simstat = OK;
void
-sim_stop_reason(enum sim_stop * reason, int *sigrc)
+sim_stop_reason(sd, reason, sigrc)
+ SIM_DESC sd;
+ enum sim_stop * reason;
+ int *sigrc;
{
switch (simstat) {
handlers.
*/
-#define PSR_CWP 0x7
-
static void
flush_windows ()
{
int i;
sp = sregs.r[(win * 16 + 14) & 0x7f];
+#if 1
+ if (sis_verbose > 2) {
+ uint32 fp = sregs.r[(win * 16 + 30) & 0x7f];
+ printf("flush_window: win %d, sp %x, fp %x\n", win, sp, fp);
+ }
+#endif
for (i = 0; i < 16; i++)
memory_write (11, sp + 4 * i, &sregs.r[(win * 16 + 16 + i) & 0x7f], 2,
}
void
-sim_resume(int step, int siggnal)
+sim_resume(SIM_DESC sd, int step, int siggnal)
{
- simstat = run_sim(&sregs, 1, 0, 0);
+ simstat = run_sim(&sregs, -1, 0);
if (sis_gdb_break) flush_windows ();
}
int
-sim_trace ()
+sim_trace (sd)
+ SIM_DESC sd;
{
/* FIXME: unfinished */
- sim_resume (0, 0);
+ sim_resume (sd, 0, 0);
return 1;
}
void
-sim_kill(void)
-{
-}
-
-void
-sim_do_command(cmd)
+sim_do_command(sd, cmd)
+ SIM_DESC sd;
char *cmd;
{
exec_cmd(&sregs, cmd);
projects / deliverable / binutils-gdb.git / blobdiff