X-Git-Url: http://drtracing.org/?a=blobdiff_plain;f=sim%2Ferc32%2Ffunc.c;h=4743aadf04c676cca919596d130da79ddc68c330;hb=3922b302645fda04da42a5279399578ae2f6206c;hp=d2427b795e287b5dc3a75cd3d656545a71ed5e9d;hpb=e98fe4f7b54cbdf29aef9287bbb1bea8801dd05a;p=deliverable%2Fbinutils-gdb.git
diff --git a/sim/erc32/func.c b/sim/erc32/func.c
index d2427b795e..4743aadf04 100644
--- a/sim/erc32/func.c
+++ b/sim/erc32/func.c
@@ -1,39 +1,34 @@
-/*
- * func.c, misc simulator functions. This file is part of SIS.
- *
- * SIS, SPARC instruction simulator V1.8 Copyright (C) 1995 Jiri Gaisler,
- * European Space Agency
- *
- * This program is free software; you can redistribute it and/or modify it under
- * the terms of the GNU General Public License as published by the Free
- * Software Foundation; either version 2 of the License, or (at your option)
- * any later version.
- *
- * This program is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
- * more details.
- *
- * You should have received a copy of the GNU General Public License along with
- * this program; if not, write to the Free Software Foundation, Inc., 675
- * Mass Ave, Cambridge, MA 02139, USA.
- *
- */
+/* This file is part of SIS (SPARC instruction simulator)
+ Copyright (C) 1995-2020 Free Software Foundation, Inc.
+ Contributed by Jiri Gaisler, European Space Agency
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 3 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program. If not, see . */
+
+#include "config.h"
#include
#include
#include
#include
#include
#include "sis.h"
-#include "end.h"
#include
#include "sim-config.h"
-
+#include
#define VAL(x) strtoul(x,(char **)NULL,0)
-extern int current_target_byte_order;
struct disassemble_info dinfo;
struct pstate sregs;
extern struct estate ebase;
@@ -63,16 +58,16 @@ uint32 errmec = 0;
/* Forward declarations */
-static int batch PARAMS ((struct pstate *sregs, char *fname));
-static void set_rega PARAMS ((struct pstate *sregs, char *reg, uint32 rval));
-static void disp_reg PARAMS ((struct pstate *sregs, char *reg));
-static uint32 limcalc PARAMS ((float32 freq));
-static void int_handler PARAMS ((int32 sig));
-static void init_event PARAMS ((void));
-static int disp_fpu PARAMS ((struct pstate *sregs));
-static void disp_regs PARAMS ((struct pstate *sregs, int cwp));
-static void disp_ctrl PARAMS ((struct pstate *sregs));
-static void disp_mem PARAMS ((uint32 addr, uint32 len));
+static int batch (struct pstate *sregs, char *fname);
+static void set_rega (struct pstate *sregs, char *reg, uint32 rval);
+static void disp_reg (struct pstate *sregs, char *reg);
+static uint32 limcalc (float32 freq);
+static void int_handler (int32 sig);
+static void init_event (void);
+static int disp_fpu (struct pstate *sregs);
+static void disp_regs (struct pstate *sregs, int cwp);
+static void disp_ctrl (struct pstate *sregs);
+static void disp_mem (uint32 addr, uint32 len);
static int
batch(sregs, fname)
@@ -80,22 +75,25 @@ batch(sregs, fname)
char *fname;
{
FILE *fp;
- char lbuf[1024];
+ char *lbuf = NULL;
+ size_t len = 0;
+ size_t slen;
if ((fp = fopen(fname, "r")) == NULL) {
fprintf(stderr, "couldn't open batch file %s\n", fname);
- return (0);
+ return 0;
}
- while (!feof(fp)) {
- lbuf[0] = 0;
- fgets(lbuf, 1023, fp);
- if ((strlen(lbuf) > 0) && (lbuf[strlen(lbuf) - 1] == '\n'))
- lbuf[strlen(lbuf) - 1] = 0;
- printf("sis> %s\n", lbuf);
- exec_cmd(sregs, lbuf);
+ while (getline(&lbuf, &len, fp) > -1) {
+ slen = strlen(lbuf);
+ if (slen && (lbuf[slen - 1] == '\n')) {
+ lbuf[slen - 1] = 0;
+ printf("sis> %s\n", lbuf);
+ exec_cmd(sregs, lbuf);
+ }
}
+ free(lbuf);
fclose(fp);
- return (1);
+ return 1;
}
void
@@ -181,18 +179,10 @@ get_regi(struct pstate * sregs, int32 reg, char *buf)
default:break;
}
}
- if (current_target_byte_order == BIG_ENDIAN) {
- buf[0] = (rval >> 24) & 0x0ff;
- buf[1] = (rval >> 16) & 0x0ff;
- buf[2] = (rval >> 8) & 0x0ff;
- buf[3] = rval & 0x0ff;
- }
- else {
- buf[3] = (rval >> 24) & 0x0ff;
- buf[2] = (rval >> 16) & 0x0ff;
- buf[1] = (rval >> 8) & 0x0ff;
- buf[0] = rval & 0x0ff;
- }
+ buf[0] = (rval >> 24) & 0x0ff;
+ buf[1] = (rval >> 16) & 0x0ff;
+ buf[2] = (rval >> 8) & 0x0ff;
+ buf[3] = rval & 0x0ff;
}
@@ -372,23 +362,22 @@ limcalc (freq)
lim = -1;
}
}
- return (lim);
+ return lim;
}
-
+
int
-exec_cmd(sregs, cmd)
- char *cmd;
- struct pstate *sregs;
+exec_cmd(struct pstate *sregs, const char *cmd)
{
char *cmd1, *cmd2;
int32 stat;
uint32 len, i, clen, j;
static uint32 daddr = 0;
- char *cmdsave;
+ char *cmdsave, *cmdsave2 = NULL;
stat = OK;
cmdsave = strdup(cmd);
- if ((cmd1 = strtok(cmd, " \t")) != NULL) {
+ cmdsave2 = strdup (cmd);
+ if ((cmd1 = strtok (cmdsave2, " \t")) != NULL) {
clen = strlen(cmd1);
if (strncmp(cmd1, "bp", clen) == 0) {
for (i = 0; i < sregs->bptnum; i++) {
@@ -421,7 +410,7 @@ exec_cmd(sregs, cmd)
}
} else if (strncmp(cmd1, "cont", clen) == 0) {
if ((cmd1 = strtok(NULL, " \t\n\r")) == NULL) {
- stat = run_sim(sregs, -1, 0);
+ stat = run_sim(sregs, UINT64_MAX, 0);
} else {
stat = run_sim(sregs, VAL(cmd1), 0);
}
@@ -468,11 +457,13 @@ exec_cmd(sregs, cmd)
}
sregs->pc = len & ~3;
sregs->npc = sregs->pc + 4;
+ if ((sregs->pc != 0) && (ebase.simtime == 0))
+ boot_init();
printf("resuming at 0x%08x\n",sregs->pc);
if ((cmd2 = strtok(NULL, " \t\n\r")) != NULL) {
stat = run_sim(sregs, VAL(cmd2), 0);
} else {
- stat = run_sim(sregs, -1, 0);
+ stat = run_sim(sregs, UINT64_MAX, 0);
}
daddr = sregs->pc;
sim_halt();
@@ -544,7 +535,7 @@ exec_cmd(sregs, cmd)
reset_all();
reset_stat(sregs);
if ((cmd1 = strtok(NULL, " \t\n\r")) == NULL) {
- stat = run_sim(sregs, -1, 0);
+ stat = run_sim(sregs, UINT64_MAX, 0);
} else {
stat = run_sim(sregs, VAL(cmd1), 0);
}
@@ -552,7 +543,9 @@ exec_cmd(sregs, cmd)
sim_halt();
} else if (strncmp(cmd1, "shell", clen) == 0) {
if ((cmd1 = strtok(NULL, " \t\n\r")) != NULL) {
- system(&cmdsave[clen]);
+ if (system(&cmdsave[clen])) {
+ /* Silence unused return value warning. */
+ }
}
} else if (strncmp(cmd1, "step", clen) == 0) {
stat = run_sim(sregs, 1, 1);
@@ -560,7 +553,7 @@ exec_cmd(sregs, cmd)
sim_halt();
} else if (strncmp(cmd1, "tcont", clen) == 0) {
sregs->tlimit = limcalc(sregs->freq);
- stat = run_sim(sregs, -1, 0);
+ stat = run_sim(sregs, UINT64_MAX, 0);
daddr = sregs->pc;
sim_halt();
} else if (strncmp(cmd1, "tgo", clen) == 0) {
@@ -573,7 +566,7 @@ exec_cmd(sregs, cmd)
sregs->pc = len & ~3;
sregs->npc = sregs->pc + 4;
printf("resuming at 0x%08x\n",sregs->pc);
- stat = run_sim(sregs, -1, 0);
+ stat = run_sim(sregs, UINT64_MAX, 0);
daddr = sregs->pc;
sim_halt();
} else if (strncmp(cmd1, "tlimit", clen) == 0) {
@@ -583,7 +576,7 @@ exec_cmd(sregs, cmd)
sregs->tlimit / sregs->freq / 1000);
} else if (strncmp(cmd1, "tra", clen) == 0) {
if ((cmd1 = strtok(NULL, " \t\n\r")) == NULL) {
- stat = run_sim(sregs, -1, 1);
+ stat = run_sim(sregs, UINT64_MAX, 1);
} else {
stat = run_sim(sregs, VAL(cmd1), 1);
}
@@ -595,15 +588,17 @@ exec_cmd(sregs, cmd)
reset_all();
reset_stat(sregs);
sregs->tlimit = limcalc(sregs->freq);
- stat = run_sim(sregs, -1, 0);
+ stat = run_sim(sregs, UINT64_MAX, 0);
daddr = sregs->pc;
sim_halt();
} else
printf("syntax error\n");
}
+ if (cmdsave2 != NULL)
+ free(cmdsave2);
if (cmdsave != NULL)
free(cmdsave);
- return (stat);
+ return stat;
}
@@ -611,7 +606,7 @@ void
reset_stat(sregs)
struct pstate *sregs;
{
- sregs->tottime = 0;
+ sregs->tottime = 0.0;
sregs->pwdtime = 0;
sregs->ninst = 0;
sregs->fholdt = 0;
@@ -630,9 +625,10 @@ show_stat(sregs)
struct pstate *sregs;
{
uint32 iinst;
- uint32 stime, tottime;
+ uint32 stime;
- if (sregs->tottime == 0) tottime = 1; else tottime = sregs->tottime;
+ if (sregs->tottime == 0.0)
+ sregs->tottime += 1E-6;
stime = ebase.simtime - sregs->simstart; /* Total simulated time */
#ifdef STAT
@@ -640,8 +636,8 @@ show_stat(sregs)
sregs->nbranch;
#endif
- printf("\n Cycles : %9d\n\r", ebase.simtime - sregs->simstart);
- printf(" Instructions : %9d\n", sregs->ninst);
+ printf("\n Cycles : %9" PRIu64 "\n\r", ebase.simtime - sregs->simstart);
+ printf(" Instructions : %9" PRIu64 "\n", sregs->ninst);
#ifdef STAT
printf(" integer : %9.2f %%\n", 100.0 * (float) iinst / (float) sregs->ninst);
@@ -667,12 +663,15 @@ show_stat(sregs)
sregs->freq * (float) (sregs->ninst - sregs->finst) /
(float) (stime - sregs->pwdtime),
sregs->freq * (float) sregs->finst / (float) (stime - sregs->pwdtime));
- printf(" Simulated ERC32 time : %5.2f ms\n", (float) (ebase.simtime - sregs->simstart) / 1000.0 / sregs->freq);
- printf(" Processor utilisation : %5.2f %%\n", 100.0 * (1.0 - ((float) sregs->pwdtime / (float) stime)));
- printf(" Real-time / simulator-time : 1/%.2f \n",
- ((float) sregs->tottime) / ((float) (stime) / (sregs->freq * 1.0E6)));
- printf(" Simulator performance : %d KIPS\n",sregs->ninst/tottime/1000);
- printf(" Used time (sys + user) : %3d s\n\n", sregs->tottime);
+ printf(" Simulated ERC32 time : %.2f s\n",
+ (float) (ebase.simtime - sregs->simstart) / 1000000.0 / sregs->freq);
+ printf(" Processor utilisation : %.2f %%\n",
+ 100.0 * (1.0 - ((float) sregs->pwdtime / (float) stime)));
+ printf(" Real-time performance : %.2f %%\n",
+ 100.0 / (sregs->tottime / ((double) (stime) / (sregs->freq * 1.0E6))));
+ printf(" Simulator performance : %.2f MIPS\n",
+ (double)(sregs->ninst) / sregs->tottime / 1E6);
+ printf(" Used time (sys + user) : %.2f s\n\n", sregs->tottime);
}
@@ -724,7 +723,7 @@ disp_fpu(sregs)
printf("\n fsr: %08X\n\n", sregs->fsr);
-#ifdef HOST_LITTLE_ENDIAN_FLOAT
+#ifdef HOST_LITTLE_ENDIAN
for (i = 0; i < 32; i++)
sregs->fdp[i ^ 1] = sregs->fs[i];
#endif
@@ -738,7 +737,7 @@ disp_fpu(sregs)
printf("\n");
}
printf("\n");
- return (OK);
+ return OK;
}
static void
@@ -759,21 +758,32 @@ disp_regs(sregs,cwp)
}
}
+static void print_insn_sparc_sis(uint32 addr, struct disassemble_info *info)
+{
+ unsigned char i[4];
+
+ sis_memory_read(addr, i, 4);
+ dinfo.buffer_vma = addr;
+ dinfo.buffer_length = 4;
+ dinfo.buffer = i;
+ print_insn_sparc(addr, info);
+}
+
static void
disp_ctrl(sregs)
struct pstate *sregs;
{
- unsigned char i[4];
+ uint32 i;
printf("\n psr: %08X wim: %08X tbr: %08X y: %08X\n",
sregs->psr, sregs->wim, sregs->tbr, sregs->y);
- sis_memory_read(sregs->pc, i, 4);
- printf("\n pc: %08X = %02X%02X%02X%02X ", sregs->pc,i[0],i[1],i[2],i[3]);
- print_insn_sparc(sregs->pc, &dinfo);
- sis_memory_read(sregs->npc, i, 4);
- printf("\n npc: %08X = %02X%02X%02X%02X ",sregs->npc,i[0],i[1],i[2],i[3]);
- print_insn_sparc(sregs->npc, &dinfo);
+ sis_memory_read (sregs->pc, (char *) &i, 4);
+ printf ("\n pc: %08X = %08X ", sregs->pc, i);
+ print_insn_sparc_sis(sregs->pc, &dinfo);
+ sis_memory_read (sregs->npc, (char *) &i, 4);
+ printf ("\n npc: %08X = %08X ", sregs->npc, i);
+ print_insn_sparc_sis(sregs->npc, &dinfo);
if (sregs->err_mode)
printf("\n IU in error mode");
printf("\n\n");
@@ -786,22 +796,25 @@ disp_mem(addr, len)
{
uint32 i;
- unsigned char data[4];
+ union {
+ unsigned char u8[4];
+ uint32 u32;
+ } data;
uint32 mem[4], j;
char *p;
for (i = addr & ~3; i < ((addr + len) & ~3); i += 16) {
printf("\n %8X ", i);
for (j = 0; j < 4; j++) {
- sis_memory_read((i + (j * 4)), data, 4);
- printf("%02x%02x%02x%02x ", data[0],data[1],data[2],data[3]);
- mem[j] = *((int *) &data);
+ sis_memory_read ((i + (j * 4)), data.u8, 4);
+ printf ("%08x ", data.u32);
+ mem[j] = data.u32;
}
printf(" ");
p = (char *) mem;
for (j = 0; j < 16; j++) {
- if (isprint(p[j]))
- putchar(p[j]);
+ if (isprint (p[j ^ EBT]))
+ putchar (p[j ^ EBT]);
else
putchar('.');
}
@@ -816,67 +829,27 @@ dis_mem(addr, len, info)
struct disassemble_info *info;
{
uint32 i;
- unsigned char data[4];
+ union {
+ unsigned char u8[4];
+ uint32 u32;
+ } data;
for (i = addr & -3; i < ((addr & -3) + (len << 2)); i += 4) {
- sis_memory_read(i, data, 4);
- printf(" %08x %02x%02x%02x%02x ", i, data[0],data[1],data[2],data[3]);
- print_insn_sparc(i, info);
+ sis_memory_read (i, data.u8, 4);
+ printf (" %08x %08x ", i, data.u32);
+ print_insn_sparc_sis(i, info);
if (i >= 0xfffffffc) break;
printf("\n");
}
}
-int
-buffer_read_memory(addr, buffer, size, info)
- bfd_vma addr;
- bfd_byte *buffer;
- int32 size;
- struct disassemble_info *info;
-{
- if (size == sis_memory_read(addr, buffer, size))
- return (0);
- else
- return (1);
-}
-
-void
-perror_memory(status, addr, info)
- int32 status;
- bfd_vma addr;
- struct disassemble_info *info;
-{
-
- printf("Could not read address 0x%08x\n", (unsigned int) addr);
-}
-
-void
-generic_print_address(addr, info)
- bfd_vma addr;
- struct disassemble_info *info;
-{
-
- printf("0x%x", (unsigned int) addr);
-}
-
-/* Just return the given address. */
-
-int
-generic_symbol_at_address (addr, info)
- bfd_vma addr;
- struct disassemble_info * info;
-{
- return 1;
-}
-
-
/* Add event to event queue */
void
event(cfunc, arg, delta)
void (*cfunc) ();
int32 arg;
- uint32 delta;
+ uint64 delta;
{
struct evcell *ev1, *evins;
@@ -943,7 +916,8 @@ advance_time(sregs)
struct evcell *evrem;
void (*cfunc) ();
- uint32 arg, endtime;
+ uint32 arg;
+ uint64 endtime;
#ifdef STAT
sregs->fholdt += sregs->fhold;
@@ -970,7 +944,7 @@ advance_time(sregs)
uint32
now()
{
- return(ebase.simtime);
+ return ebase.simtime;
}
@@ -981,7 +955,8 @@ wait_for_irq()
{
struct evcell *evrem;
void (*cfunc) ();
- int32 arg, endtime;
+ int32 arg;
+ uint64 endtime;
if (ebase.eq.nxt == NULL)
printf("Warning: event queue empty - power-down mode not entered\n");
@@ -1001,7 +976,7 @@ wait_for_irq()
}
}
sregs.pwdtime += ebase.simtime - endtime;
- return (ebase.simtime - endtime);
+ return ebase.simtime - endtime;
}
int
@@ -1011,12 +986,12 @@ check_bpt(sregs)
int32 i;
if ((sregs->bphit) || (sregs->annul))
- return (0);
+ return 0;
for (i = 0; i < (int32) sregs->bptnum; i++) {
if (sregs->pc == sregs->bpts[i])
- return (BPT_HIT);
+ return BPT_HIT;
}
- return (0);
+ return 0;
}
void
@@ -1045,11 +1020,7 @@ sys_halt()
#include "ansidecl.h"
-#ifdef ANSI_PROTOTYPES
#include
-#else
-#include
-#endif
#include "libiberty.h"
#include "bfd.h"
@@ -1058,57 +1029,69 @@ sys_halt()
#define LOAD_ADDRESS 0
int
-bfd_load(fname)
- char *fname;
+bfd_load (const char *fname)
{
asection *section;
bfd *pbfd;
const bfd_arch_info_type *arch;
+ int i;
pbfd = bfd_openr(fname, 0);
if (pbfd == NULL) {
printf("open of %s failed\n", fname);
- return (-1);
+ return -1;
}
if (!bfd_check_format(pbfd, bfd_object)) {
printf("file %s doesn't seem to be an object file\n", fname);
- return (-1);
+ return -1;
}
arch = bfd_get_arch_info (pbfd);
- if (bfd_little_endian (pbfd) || arch->mach == bfd_mach_sparc_sparclite_le)
- current_target_byte_order = LITTLE_ENDIAN;
- else
- current_target_byte_order = BIG_ENDIAN;
- if (sis_verbose)
- printf("file %s is little-endian.\n", fname);
-
if (sis_verbose)
printf("loading %s:", fname);
for (section = pbfd->sections; section; section = section->next) {
- if (bfd_get_section_flags(pbfd, section) & SEC_ALLOC) {
+ if (bfd_section_flags (section) & SEC_ALLOC) {
bfd_vma section_address;
unsigned long section_size;
const char *section_name;
- section_name = bfd_get_section_name(pbfd, section);
+ section_name = bfd_section_name (section);
- section_address = bfd_get_section_vma(pbfd, section);
+ section_address = bfd_section_vma (section);
/*
* Adjust sections from a.out files, since they don't carry their
* addresses with.
*/
- if (bfd_get_flavour(pbfd) == bfd_target_aout_flavour)
- section_address += bfd_get_start_address (pbfd);
- section_size = bfd_section_size(pbfd, section);
+ if (bfd_get_flavour(pbfd) == bfd_target_aout_flavour) {
+ if (strcmp (section_name, ".text") == 0)
+ section_address = bfd_get_start_address (pbfd);
+ else if (strcmp (section_name, ".data") == 0) {
+ /* Read the first 8 bytes of the data section.
+ There should be the string 'DaTa' followed by
+ a word containing the actual section address. */
+ struct data_marker
+ {
+ char signature[4]; /* 'DaTa' */
+ unsigned char sdata[4]; /* &sdata */
+ } marker;
+ bfd_get_section_contents (pbfd, section, &marker, 0,
+ sizeof (marker));
+ if (strncmp (marker.signature, "DaTa", 4) == 0)
+ {
+ section_address = bfd_getb32 (marker.sdata);
+ }
+ }
+ }
+
+ section_size = bfd_section_size (section);
if (sis_verbose)
- printf("\nsection %s at 0x%08lx (%ld bytes)",
+ printf("\nsection %s at 0x%08lx (0x%lx bytes)",
section_name, section_address, section_size);
/* Text, data or lit */
- if (bfd_get_section_flags(pbfd, section) & SEC_LOAD) {
+ if (bfd_section_flags (section) & SEC_LOAD) {
file_ptr fptr;
fptr = 0;
@@ -1121,7 +1104,8 @@ bfd_load(fname)
bfd_get_section_contents(pbfd, section, buffer, fptr, count);
- sis_memory_write(section_address, buffer, count);
+ for (i = 0; i < count; i++)
+ sis_memory_write ((section_address + i) ^ EBT, &buffer[i], 1);
section_address += count;
fptr += count;
@@ -1135,5 +1119,16 @@ bfd_load(fname)
if (sis_verbose)
printf("\n");
- return(bfd_get_start_address (pbfd));
+ return bfd_get_start_address (pbfd);
+}
+
+double get_time (void)
+{
+ double usec;
+
+ struct timeval tm;
+
+ gettimeofday (&tm, NULL);
+ usec = ((double) tm.tv_sec) * 1E6 + ((double) tm.tv_usec);
+ return usec / 1E6;
}