#include "config.h"
+#include <ctype.h>
+#include <stdio.h>
+#include <errno.h>
#include <signal.h>
#ifdef HAVE_UNISTD_H
#include <unistd.h>
#endif
+#ifdef HAVE_MMAP
+#include <sys/mman.h>
+# ifndef MAP_FAILED
+# define MAP_FAILED -1
+# endif
+# if !defined (MAP_ANONYMOUS) && defined (MAP_ANON)
+# define MAP_ANONYMOUS MAP_ANON
+# endif
+#endif
+
+#ifdef HAVE_STRING_H
+#include <string.h>
+#else
+#ifdef HAVE_STRINGS_H
+#include <strings.h>
+#endif
+#endif
+
+#ifdef HAVE_STDLIB_H
+#include <stdlib.h>
+#endif
+
+#ifdef HAVE_SYS_STAT_H
+#include <sys/stat.h>
+#endif
+#ifdef HAVE_TIME_H
+#include <time.h>
+#endif
+#ifdef HAVE_SYS_TIME_H
+#include <sys/time.h>
+#endif
+#ifndef _WIN32
+#include <utime.h>
+#include <sys/wait.h>
+#endif
-#include "sysdep.h"
#include "bfd.h"
#include "gdb/callback.h"
#include "gdb/remote-sim.h"
#include "gdb/sim-sh.h"
+#include "sim-main.h"
+#include "sim-base.h"
+#include "sim-options.h"
+
/* This file is local - if newlib changes, then so should this. */
#include "syscall.h"
#define SIGTRAP 5
#endif
-extern unsigned short sh_jump_table[], sh_dsp_table[0x1000], ppi_table[];
+/* TODO: Stop using these names. */
+#undef SEXT
+#undef SEXT32
-int sim_write (SIM_DESC sd, SIM_ADDR addr, unsigned char *buffer, int size);
+extern unsigned short sh_jump_table[], sh_dsp_table[0x1000], ppi_table[];
#define O_RECOMPILE 85
#define DEFINE_TABLE
for a quit. */
#define POLL_QUIT_INTERVAL 0x60000
-typedef struct
-{
- int regs[20];
-} regstacktype;
-
-typedef union
-{
-
- struct
- {
- int regs[16];
- int pc;
-
- /* System registers. For sh-dsp this also includes A0 / X0 / X1 / Y0 / Y1
- which are located in fregs, i.e. strictly speaking, these are
- out-of-bounds accesses of sregs.i . This wart of the code could be
- fixed by making fregs part of sregs, and including pc too - to avoid
- alignment repercussions - but this would cause very onerous union /
- structure nesting, which would only be managable with anonymous
- unions and structs. */
- union
- {
- struct
- {
- int mach;
- int macl;
- int pr;
- int dummy3, dummy4;
- int fpul; /* A1 for sh-dsp - but only for movs etc. */
- int fpscr; /* dsr for sh-dsp */
- } named;
- int i[7];
- } sregs;
-
- /* sh3e / sh-dsp */
- union fregs_u
- {
- float f[16];
- double d[8];
- int i[16];
- }
- fregs[2];
-
- /* Control registers; on the SH4, ldc / stc is privileged, except when
- accessing gbr. */
- union
- {
- struct
- {
- int sr;
- int gbr;
- int vbr;
- int ssr;
- int spc;
- int mod;
- /* sh-dsp */
- int rs;
- int re;
- /* sh3 */
- int bank[8];
- int dbr; /* debug base register */
- int sgr; /* saved gr15 */
- int ldst; /* load/store flag (boolean) */
- int tbr;
- int ibcr; /* sh2a bank control register */
- int ibnr; /* sh2a bank number register */
- } named;
- int i[16];
- } cregs;
-
- unsigned char *insn_end;
-
- int ticks;
- int stalls;
- int memstalls;
- int cycles;
- int insts;
-
- int prevlock;
- int thislock;
- int exception;
-
- int end_of_registers;
-
- int msize;
-#define PROFILE_FREQ 1
-#define PROFILE_SHIFT 2
- int profile;
- unsigned short *profile_hist;
- unsigned char *memory;
- int xyram_select, xram_start, yram_start;
- unsigned char *xmem;
- unsigned char *ymem;
- unsigned char *xmem_offset;
- unsigned char *ymem_offset;
- unsigned long bfd_mach;
- regstacktype *regstack;
- }
- asregs;
- int asints[40];
-} saved_state_type;
-
+/* TODO: Move into sim_cpu. */
saved_state_type saved_state;
struct loop_bounds { unsigned char *start, *end; };
/* These variables are at file scope so that functions other than
sim_resume can use the fetch/store macros */
-static int target_little_endian;
+#define target_little_endian (CURRENT_TARGET_BYTE_ORDER == BFD_ENDIAN_LITTLE)
static int global_endianw, endianb;
static int target_dsp;
-static int host_little_endian;
-static char **prog_argv;
+#define host_little_endian (HOST_BYTE_ORDER == BFD_ENDIAN_LITTLE)
static int maskw = 0;
static int maskl = 0;
-static SIM_OPEN_KIND sim_kind;
-static char *myname;
-static int tracing = 0;
-
-
/* Short hand definitions of the registers */
#define SBIT(x) ((x)&sbit)
#define FPSCR_SZ ((GET_FPSCR () & FPSCR_MASK_SZ) != 0)
#define FPSCR_PR ((GET_FPSCR () & FPSCR_MASK_PR) != 0)
-/* Count the number of arguments in an argv. */
-static int
-count_argc (char **argv)
-{
- int i;
-
- if (! argv)
- return -1;
-
- for (i = 0; argv[i] != NULL; ++i)
- continue;
- return i;
-}
-
static void
-set_fpscr1 (x)
- int x;
+set_fpscr1 (int x)
{
int old = saved_state.asregs.sregs.named.fpscr;
saved_state.asregs.sregs.named.fpscr = (x);
#define DSR (saved_state.asregs.sregs.named.fpscr)
-int
-fail ()
-{
- abort ();
-}
-
#define RAISE_EXCEPTION(x) \
(saved_state.asregs.exception = x, saved_state.asregs.insn_end = 0)
/* This function exists mainly for the purpose of setting a breakpoint to
catch simulated bus errors when running the simulator under GDB. */
-void
-raise_exception (x)
- int x;
+static void
+raise_exception (int x)
{
RAISE_EXCEPTION (x);
}
-void
-raise_buserror ()
+static void
+raise_buserror (void)
{
raise_exception (SIGBUS);
}
#define UNDEF(x)
#endif
-static void parse_and_set_memory_size PARAMS ((char *str));
-static int IOMEM PARAMS ((int addr, int write, int value));
-static struct loop_bounds get_loop_bounds PARAMS ((int, int, unsigned char *,
- unsigned char *, int, int));
-static void process_wlat_addr PARAMS ((int, int));
-static void process_wwat_addr PARAMS ((int, int));
-static void process_wbat_addr PARAMS ((int, int));
-static int process_rlat_addr PARAMS ((int));
-static int process_rwat_addr PARAMS ((int));
-static int process_rbat_addr PARAMS ((int));
-static void INLINE wlat_fast PARAMS ((unsigned char *, int, int, int));
-static void INLINE wwat_fast PARAMS ((unsigned char *, int, int, int, int));
-static void INLINE wbat_fast PARAMS ((unsigned char *, int, int, int));
-static int INLINE rlat_fast PARAMS ((unsigned char *, int, int));
-static int INLINE rwat_fast PARAMS ((unsigned char *, int, int, int));
-static int INLINE rbat_fast PARAMS ((unsigned char *, int, int));
-
-static host_callback *callback;
-
-
+static void parse_and_set_memory_size (SIM_DESC sd, const char *str);
+static int IOMEM (int addr, int write, int value);
+static struct loop_bounds get_loop_bounds (int, int, unsigned char *,
+ unsigned char *, int, int);
+static void process_wlat_addr (int, int);
+static void process_wwat_addr (int, int);
+static void process_wbat_addr (int, int);
+static int process_rlat_addr (int);
+static int process_rwat_addr (int);
+static int process_rbat_addr (int);
/* Floating point registers */
#define DR(n) (get_dr (n))
static double
-get_dr (n)
- int n;
+get_dr (int n)
{
n = (n & ~1);
if (host_little_endian)
#define SET_DR(n, EXP) set_dr ((n), (EXP))
static void
-set_dr (n, exp)
- int n;
- double exp;
+set_dr (int n, double exp)
{
n = (n & ~1);
if (host_little_endian)
} while (0)
static void
-set_sr (new_sr)
- int new_sr;
+set_sr (int new_sr)
{
/* do we need to swap banks */
int old_gpr = SR_MD && SR_RB;
SET_MOD (MOD);
}
-static void INLINE
-wlat_fast (memory, x, value, maskl)
- unsigned char *memory;
+static INLINE void
+wlat_fast (unsigned char *memory, int x, int value, int maskl)
{
int v = value;
unsigned int *p = (unsigned int *) (memory + x);
*p = v;
}
-static void INLINE
-wwat_fast (memory, x, value, maskw, endianw)
- unsigned char *memory;
+static INLINE void
+wwat_fast (unsigned char *memory, int x, int value, int maskw, int endianw)
{
int v = value;
unsigned short *p = (unsigned short *) (memory + (x ^ endianw));
*p = v;
}
-static void INLINE
-wbat_fast (memory, x, value, maskb)
- unsigned char *memory;
+static INLINE void
+wbat_fast (unsigned char *memory, int x, int value, int maskb)
{
unsigned char *p = memory + (x ^ endianb);
WRITE_BUSERROR (x, maskb, value, process_wbat_addr);
/* Read functions */
-static int INLINE
-rlat_fast (memory, x, maskl)
- unsigned char *memory;
+static INLINE int
+rlat_fast (unsigned char *memory, int x, int maskl)
{
unsigned int *p = (unsigned int *) (memory + x);
READ_BUSERROR (x, maskl, process_rlat_addr);
return *p;
}
-static int INLINE
-rwat_fast (memory, x, maskw, endianw)
- unsigned char *memory;
- int x, maskw, endianw;
+static INLINE int
+rwat_fast (unsigned char *memory, int x, int maskw, int endianw)
{
unsigned short *p = (unsigned short *) (memory + (x ^ endianw));
READ_BUSERROR (x, maskw, process_rwat_addr);
return *p;
}
-static int INLINE
-riat_fast (insn_ptr, endianw)
- unsigned char *insn_ptr;
+static INLINE int
+riat_fast (unsigned char *insn_ptr, int endianw)
{
- unsigned short *p = (unsigned short *) ((size_t) insn_ptr ^ endianw);
+ unsigned short *p = (unsigned short *) ((uintptr_t) insn_ptr ^ endianw);
return *p;
}
-static int INLINE
-rbat_fast (memory, x, maskb)
- unsigned char *memory;
+static INLINE int
+rbat_fast (unsigned char *memory, int x, int maskb)
{
unsigned char *p = memory + (x ^ endianb);
READ_BUSERROR (x, maskb, process_rbat_addr);
#define RDAT(x, n) (do_rdat (memory, (x), (n), (maskl)))
static int
-do_rdat (memory, x, n, maskl)
- char *memory;
- int x;
- int n;
- int maskl;
+do_rdat (unsigned char *memory, int x, int n, int maskl)
{
int f0;
int f1;
#define WDAT(x, n) (do_wdat (memory, (x), (n), (maskl)))
static int
-do_wdat (memory, x, n, maskl)
- char *memory;
- int x;
- int n;
- int maskl;
+do_wdat (unsigned char *memory, int x, int n, int maskl)
{
int f0;
int f1;
}
static void
-process_wlat_addr (addr, value)
- int addr;
- int value;
+process_wlat_addr (int addr, int value)
{
unsigned int *ptr;
}
static void
-process_wwat_addr (addr, value)
- int addr;
- int value;
+process_wwat_addr (int addr, int value)
{
unsigned short *ptr;
}
static void
-process_wbat_addr (addr, value)
- int addr;
- int value;
+process_wbat_addr (int addr, int value)
{
unsigned char *ptr;
}
static int
-process_rlat_addr (addr)
- int addr;
+process_rlat_addr (int addr)
{
unsigned char *ptr;
}
static int
-process_rwat_addr (addr)
- int addr;
+process_rwat_addr (int addr)
{
unsigned char *ptr;
}
static int
-process_rbat_addr (addr)
- int addr;
+process_rbat_addr (int addr)
{
unsigned char *ptr;
#else
#define MA(n) \
- do { memstalls += ((((int) PC & 3) != 0) ? (n) : ((n) - 1)); } while (0)
+ do { memstalls += ((((long) PC & 3) != 0) ? (n) : ((n) - 1)); } while (0)
#define L(x) thislock = x;
#define TL(x) if ((x) == prevlock) stalls++;
#endif
-#if defined(__GO32__) || defined(_WIN32)
+#if defined(__GO32__)
int sim_memory_size = 19;
#else
-int sim_memory_size = 24;
+int sim_memory_size = 30;
#endif
static int sim_profile_size = 17;
#define SCI_TDRE 0x80 /* Transmit data register empty */
static int
-IOMEM (addr, write, value)
- int addr;
- int write;
- int value;
+IOMEM (int addr, int write, int value)
{
if (write)
{
}
static int
-get_now ()
+get_now (void)
{
return time ((long *) 0);
}
static int
-now_persec ()
+now_persec (void)
{
return 1;
}
static FILE *profile_file;
-static unsigned INLINE
-swap (n)
- unsigned n;
+static INLINE unsigned
+swap (unsigned n)
{
if (endianb)
n = (n << 24 | (n & 0xff00) << 8
return n;
}
-static unsigned short INLINE
-swap16 (n)
- unsigned short n;
+static INLINE unsigned short
+swap16 (unsigned short n)
{
if (endianb)
n = n << 8 | (n & 0xff00) >> 8;
}
static void
-swapout (n)
- int n;
+swapout (int n)
{
if (profile_file)
{
}
static void
-swapout16 (n)
- int n;
+swapout16 (int n)
{
union { char b[4]; int n; } u;
u.n = swap16 (n);
/* Turn a pointer in a register into a pointer into real memory. */
static char *
-ptr (x)
- int x;
+ptr (int x)
{
return (char *) (x + saved_state.asregs.memory);
}
+/* STR points to a zero-terminated string in target byte order. Return
+ the number of bytes that need to be converted to host byte order in order
+ to use this string as a zero-terminated string on the host.
+ (Not counting the rounding up needed to operate on entire words.) */
static int
-strswaplen (str)
- int str;
+strswaplen (int str)
{
unsigned char *memory = saved_state.asregs.memory;
int start, end;
return 0;
end = str;
for (end = str; memory[end ^ endian]; end++) ;
- return end - str;
+ return end - str + 1;
}
static void
-strnswap (str, len)
- int str;
- int len;
+strnswap (int str, int len)
{
int *start, *end;
return offset by which to adjust pc. */
static int
-trap (i, regs, insn_ptr, memory, maskl, maskw, endianw)
- int i;
- int *regs;
- unsigned char *insn_ptr;
- unsigned char *memory;
+trap (SIM_DESC sd, int i, int *regs, unsigned char *insn_ptr,
+ unsigned char *memory, int maskl, int maskw, int endianw)
{
+ host_callback *callback = STATE_CALLBACK (sd);
+ char **prog_argv = STATE_PROG_ARGV (sd);
+
switch (i)
{
case 1:
break;
case SYS_wait:
- regs[0] = wait (ptr (regs[5]));
+ regs[0] = wait ((int *) ptr (regs[5]));
break;
#endif /* !defined(__GO32__) && !defined(_WIN32) */
break;
}
case SYS_argc:
- regs[0] = count_argc (prog_argv);
+ regs[0] = countargv (prog_argv);
break;
case SYS_argnlen:
- if (regs[5] < count_argc (prog_argv))
+ if (regs[5] < countargv (prog_argv))
regs[0] = strlen (prog_argv[regs[5]]);
else
regs[0] = -1;
break;
case SYS_argn:
- if (regs[5] < count_argc (prog_argv))
+ if (regs[5] < countargv (prog_argv))
{
/* Include the termination byte. */
int i = strlen (prog_argv[regs[5]]) + 1;
- regs[0] = sim_write (0, regs[6], prog_argv[regs[5]], i);
+ regs[0] = sim_write (0, regs[6], (void *) prog_argv[regs[5]], i);
}
else
regs[0] = -1;
return 0;
}
-void
-control_c (sig, code, scp, addr)
- int sig;
- int code;
- char *scp;
- char *addr;
-{
- raise_exception (SIGINT);
-}
-
-static int
-div1 (R, iRn2, iRn1/*, T*/)
- int *R;
- int iRn1;
- int iRn2;
- /* int T;*/
+static void
+div1 (int *R, int iRn2, int iRn1/*, int T*/)
{
unsigned long tmp0;
unsigned char old_q, tmp1;
}
static void
-dmul (sign, rm, rn)
- int sign;
- unsigned int rm;
- unsigned int rn;
+dmul_s (uint32_t rm, uint32_t rn)
{
- unsigned long RnL, RnH;
- unsigned long RmL, RmH;
- unsigned long temp0, temp1, temp2, temp3;
- unsigned long Res2, Res1, Res0;
-
- RnL = rn & 0xffff;
- RnH = (rn >> 16) & 0xffff;
- RmL = rm & 0xffff;
- RmH = (rm >> 16) & 0xffff;
- temp0 = RmL * RnL;
- temp1 = RmH * RnL;
- temp2 = RmL * RnH;
- temp3 = RmH * RnH;
- Res2 = 0;
- Res1 = temp1 + temp2;
- if (Res1 < temp1)
- Res2 += 0x00010000;
- temp1 = (Res1 << 16) & 0xffff0000;
- Res0 = temp0 + temp1;
- if (Res0 < temp0)
- Res2 += 1;
- Res2 += ((Res1 >> 16) & 0xffff) + temp3;
-
- if (sign)
- {
- if (rn & 0x80000000)
- Res2 -= rm;
- if (rm & 0x80000000)
- Res2 -= rn;
- }
+ int64_t res = (int64_t)(int32_t)rm * (int64_t)(int32_t)rn;
+ MACH = (uint32_t)((uint64_t)res >> 32);
+ MACL = (uint32_t)res;
+}
- MACH = Res2;
- MACL = Res0;
+static void
+dmul_u (uint32_t rm, uint32_t rn)
+{
+ uint64_t res = (uint64_t)(uint32_t)rm * (uint64_t)(uint32_t)rn;
+ MACH = (uint32_t)(res >> 32);
+ MACL = (uint32_t)res;
}
static void
-macw (regs, memory, n, m, endianw)
- int *regs;
- unsigned char *memory;
- int m, n;
- int endianw;
+macw (int *regs, unsigned char *memory, int n, int m, int endianw)
{
long tempm, tempn;
long prod, macl, sum;
}
static void
-macl (regs, memory, n, m)
- int *regs;
- unsigned char *memory;
- int m, n;
+macl (int *regs, unsigned char *memory, int n, int m)
{
long tempm, tempn;
- long prod, macl, mach, sum;
- long long ans,ansl,ansh,t;
- unsigned long long high,low,combine;
- union mac64
- {
- long m[2]; /* mach and macl*/
- long long m64; /* 64 bit MAC */
- }mac64;
+ long macl, mach;
+ long long ans;
+ long long mac64;
tempm = RSLAT (regs[m]);
regs[m] += 4;
mach = MACH;
macl = MACL;
- mac64.m[0] = macl;
- mac64.m[1] = mach;
+ mac64 = ((long long) macl & 0xffffffff) |
+ ((long long) mach & 0xffffffff) << 32;
ans = (long long) tempm * (long long) tempn; /* Multiply 32bit * 32bit */
- mac64.m64 += ans; /* Accumulate 64bit + 64 bit */
+ mac64 += ans; /* Accumulate 64bit + 64 bit */
- macl = mac64.m[0];
- mach = mac64.m[1];
+ macl = (long) (mac64 & 0xffffffff);
+ mach = (long) ((mac64 >> 32) & 0xffffffff);
if (S) /* Store only 48 bits of the result */
{
};
/* Do extended displacement move instructions. */
-void
+static void
do_long_move_insn (int op, int disp12, int m, int n, int *thatlock)
{
int memstalls = 0;
}
/* Do binary logical bit-manipulation insns. */
-void
+static void
do_blog_insn (int imm, int addr, int binop,
unsigned char *memory, int maskb)
{
break;
}
}
-float
+
+static float
fsca_s (int in, double (*f) (double))
{
double rad = ldexp ((in & 0xffff), -15) * 3.141592653589793238462643383;
return abs (upper - result) >= abs (lower - result) ? upper : lower;
}
-float
+static float
fsrra_s (float in)
{
double result = 1. / sqrt (in);
pointed to by RS and RE -- for SETRC, they're not (see docs). */
static struct loop_bounds
-get_loop_bounds_ext (rs, re, memory, mem_end, maskw, endianw)
- int rs, re;
- unsigned char *memory, *mem_end;
- int maskw, endianw;
+get_loop_bounds_ext (int rs, int re, unsigned char *memory,
+ unsigned char *mem_end, int maskw, int endianw)
{
struct loop_bounds loop;
}
static struct loop_bounds
-get_loop_bounds (rs, re, memory, mem_end, maskw, endianw)
- int rs, re;
- unsigned char *memory, *mem_end;
- int maskw, endianw;
+get_loop_bounds (int rs, int re, unsigned char *memory, unsigned char *mem_end,
+ int maskw, int endianw)
{
struct loop_bounds loop;
#include "ppi.c"
-/* Set the memory size to the power of two provided. */
+/* Provide calloc / free versions that use an anonymous mmap. This can
+ significantly cut the start-up time when a large simulator memory is
+ required, because pages are only zeroed on demand. */
+#ifdef MAP_ANONYMOUS
+static void *
+mcalloc (size_t nmemb, size_t size)
+{
+ void *page;
-void
-sim_size (power)
- int power;
+ if (nmemb != 1)
+ size *= nmemb;
+ return mmap (0, size, PROT_READ | PROT_WRITE, MAP_PRIVATE | MAP_ANONYMOUS,
+ -1, 0);
+}
-{
- saved_state.asregs.msize = 1 << power;
+#define mfree(start,length) munmap ((start), (length))
+#else
+#define mcalloc calloc
+#define mfree(start,length) free(start)
+#endif
+/* Set the memory size to the power of two provided. */
+
+static void
+sim_size (int power)
+{
sim_memory_size = power;
if (saved_state.asregs.memory)
{
- free (saved_state.asregs.memory);
+ mfree (saved_state.asregs.memory, saved_state.asregs.msize);
}
+ saved_state.asregs.msize = 1 << power;
+
saved_state.asregs.memory =
- (unsigned char *) calloc (64, saved_state.asregs.msize / 64);
+ (unsigned char *) mcalloc (1, saved_state.asregs.msize);
if (!saved_state.asregs.memory)
{
saved_state.asregs.msize);
saved_state.asregs.msize = 1;
- saved_state.asregs.memory = (unsigned char *) calloc (1, 1);
+ saved_state.asregs.memory = (unsigned char *) mcalloc (1, 1);
}
}
static void
-init_dsp (abfd)
- struct bfd *abfd;
+init_dsp (struct bfd *abfd)
{
int was_dsp = target_dsp;
unsigned long mach = bfd_get_mach (abfd);
{
int i, tmp;
- for (i = (sizeof sh_dsp_table / sizeof sh_dsp_table[0]) - 1; i >= 0; i--)
+ for (i = ARRAY_SIZE (sh_dsp_table) - 1; i >= 0; i--)
{
tmp = sh_jump_table[0xf000 + i];
sh_jump_table[0xf000 + i] = sh_dsp_table[i];
}
static void
-init_pointers ()
+init_pointers (void)
{
- host_little_endian = 0;
- * (char*) &host_little_endian = 1;
- host_little_endian &= 1;
-
if (saved_state.asregs.msize != 1 << sim_memory_size)
{
sim_size (sim_memory_size);
}
static void
-dump_profile ()
+dump_profile (void)
{
unsigned int minpc;
unsigned int maxpc;
}
static void
-gotcall (from, to)
- int from;
- int to;
+gotcall (int from, int to)
{
swapout (from);
swapout (to);
#define MMASKB ((saved_state.asregs.msize -1) & ~0)
-int
-sim_stop (sd)
- SIM_DESC sd;
-{
- raise_exception (SIGINT);
- return 1;
-}
-
void
-sim_resume (sd, step, siggnal)
- SIM_DESC sd;
- int step, siggnal;
+sim_resume (SIM_DESC sd, int step, int siggnal)
{
register unsigned char *insn_ptr;
unsigned char *mem_end;
register int endianw = global_endianw;
int tick_start = get_now ();
- void (*prev) ();
void (*prev_fpe) ();
register unsigned short *jump_table = sh_jump_table;
register unsigned char *memory;
register unsigned int sbit = ((unsigned int) 1 << 31);
- prev = signal (SIGINT, control_c);
prev_fpe = signal (SIGFPE, SIG_IGN);
init_pointers ();
insts++;
#endif
top:
- if (tracing)
- fprintf (stderr, "PC: %08x, insn: %04x\n", PH2T (insn_ptr), iword);
#include "code.c"
if (--pollcount < 0)
{
+ host_callback *callback = STATE_CALLBACK (sd);
+
pollcount = POLL_QUIT_INTERVAL;
if ((*callback->poll_quit) != NULL
&& (*callback->poll_quit) (callback))
}
signal (SIGFPE, prev_fpe);
- signal (SIGINT, prev);
}
int
-sim_write (sd, addr, buffer, size)
- SIM_DESC sd;
- SIM_ADDR addr;
- unsigned char *buffer;
- int size;
+sim_write (SIM_DESC sd, SIM_ADDR addr, const unsigned char *buffer, int size)
{
int i;
}
int
-sim_read (sd, addr, buffer, size)
- SIM_DESC sd;
- SIM_ADDR addr;
- unsigned char *buffer;
- int size;
+sim_read (SIM_DESC sd, SIM_ADDR addr, unsigned char *buffer, int size)
{
int i;
REGBANK_MACL = 19
};
-int
-sim_store_register (sd, rn, memory, length)
- SIM_DESC sd;
- int rn;
- unsigned char *memory;
- int length;
+static int
+sh_reg_store (SIM_CPU *cpu, int rn, unsigned char *memory, int length)
{
unsigned val;
default:
return 0;
}
- return -1;
+ return length;
}
-int
-sim_fetch_register (sd, rn, memory, length)
- SIM_DESC sd;
- int rn;
- unsigned char *memory;
- int length;
+static int
+sh_reg_fetch (SIM_CPU *cpu, int rn, unsigned char *memory, int length)
{
int val;
return 0;
}
* (int *) memory = swap (val);
- return -1;
-}
-
-int
-sim_trace (sd)
- SIM_DESC sd;
-{
- tracing = 1;
- sim_resume (sd, 0, 0);
- tracing = 0;
- return 1;
+ return length;
}
void
-sim_stop_reason (sd, reason, sigrc)
- SIM_DESC sd;
- enum sim_stop *reason;
- int *sigrc;
+sim_stop_reason (SIM_DESC sd, enum sim_stop *reason, int *sigrc)
{
/* The SH simulator uses SIGQUIT to indicate that the program has
exited, so we must check for it here and translate it to exit. */
}
void
-sim_info (sd, verbose)
- SIM_DESC sd;
- int verbose;
+sim_info (SIM_DESC sd, int verbose)
{
double timetaken =
(double) saved_state.asregs.ticks / (double) now_persec ();
double virttime = saved_state.asregs.cycles / 36.0e6;
- callback->printf_filtered (callback, "\n\n# instructions executed %10d\n",
- saved_state.asregs.insts);
- callback->printf_filtered (callback, "# cycles %10d\n",
- saved_state.asregs.cycles);
- callback->printf_filtered (callback, "# pipeline stalls %10d\n",
- saved_state.asregs.stalls);
- callback->printf_filtered (callback, "# misaligned load/store %10d\n",
- saved_state.asregs.memstalls);
- callback->printf_filtered (callback, "# real time taken %10.4f\n",
- timetaken);
- callback->printf_filtered (callback, "# virtual time taken %10.4f\n",
- virttime);
- callback->printf_filtered (callback, "# profiling size %10d\n",
- sim_profile_size);
- callback->printf_filtered (callback, "# profiling frequency %10d\n",
- saved_state.asregs.profile);
- callback->printf_filtered (callback, "# profile maxpc %10x\n",
- (1 << sim_profile_size) << PROFILE_SHIFT);
+ sim_io_printf (sd, "\n\n# instructions executed %10d\n",
+ saved_state.asregs.insts);
+ sim_io_printf (sd, "# cycles %10d\n",
+ saved_state.asregs.cycles);
+ sim_io_printf (sd, "# pipeline stalls %10d\n",
+ saved_state.asregs.stalls);
+ sim_io_printf (sd, "# misaligned load/store %10d\n",
+ saved_state.asregs.memstalls);
+ sim_io_printf (sd, "# real time taken %10.4f\n", timetaken);
+ sim_io_printf (sd, "# virtual time taken %10.4f\n", virttime);
+ sim_io_printf (sd, "# profiling size %10d\n", sim_profile_size);
+ sim_io_printf (sd, "# profiling frequency %10d\n",
+ saved_state.asregs.profile);
+ sim_io_printf (sd, "# profile maxpc %10x\n",
+ (1 << sim_profile_size) << PROFILE_SHIFT);
if (timetaken != 0)
{
- callback->printf_filtered (callback, "# cycles/second %10d\n",
- (int) (saved_state.asregs.cycles / timetaken));
- callback->printf_filtered (callback, "# simulation ratio %10.4f\n",
- virttime / timetaken);
+ sim_io_printf (sd, "# cycles/second %10d\n",
+ (int) (saved_state.asregs.cycles / timetaken));
+ sim_io_printf (sd, "# simulation ratio %10.4f\n",
+ virttime / timetaken);
}
}
-void
-sim_set_profile (n)
- int n;
+static sim_cia
+sh_pc_get (sim_cpu *cpu)
{
- saved_state.asregs.profile = n;
+ return saved_state.asregs.pc;
}
-void
-sim_set_profile_size (n)
- int n;
+static void
+sh_pc_set (sim_cpu *cpu, sim_cia pc)
+{
+ saved_state.asregs.pc = pc;
+}
+
+static void
+free_state (SIM_DESC sd)
{
- sim_profile_size = n;
+ if (STATE_MODULES (sd) != NULL)
+ sim_module_uninstall (sd);
+ sim_cpu_free_all (sd);
+ sim_state_free (sd);
}
SIM_DESC
-sim_open (kind, cb, abfd, argv)
- SIM_OPEN_KIND kind;
- host_callback *cb;
- struct bfd *abfd;
- char **argv;
+sim_open (SIM_OPEN_KIND kind, host_callback *cb,
+ struct bfd *abfd, char * const *argv)
{
char **p;
- int endian_set = 0;
int i;
union
{
}
mem_word;
- sim_kind = kind;
- myname = argv[0];
- callback = cb;
+ SIM_DESC sd = sim_state_alloc (kind, cb);
+ SIM_ASSERT (STATE_MAGIC (sd) == SIM_MAGIC_NUMBER);
- for (p = argv + 1; *p != NULL; ++p)
+ /* The cpu data is kept in a separately allocated chunk of memory. */
+ if (sim_cpu_alloc_all (sd, 1, /*cgen_cpu_max_extra_bytes ()*/0) != SIM_RC_OK)
{
- if (strcmp (*p, "-E") == 0)
- {
- ++p;
- if (*p == NULL)
- {
- /* FIXME: This doesn't use stderr, but then the rest of the
- file doesn't either. */
- callback->printf_filtered (callback, "Missing argument to `-E'.\n");
- return 0;
- }
- target_little_endian = strcmp (*p, "big") != 0;
- endian_set = 1;
- }
- else if (isdigit (**p))
- parse_and_set_memory_size (*p);
+ free_state (sd);
+ return 0;
+ }
+
+ if (sim_pre_argv_init (sd, argv[0]) != SIM_RC_OK)
+ {
+ free_state (sd);
+ return 0;
+ }
+
+ /* The parser will print an error message for us, so we silently return. */
+ if (sim_parse_args (sd, argv) != SIM_RC_OK)
+ {
+ free_state (sd);
+ return 0;
}
- if (abfd != NULL && ! endian_set)
- target_little_endian = ! bfd_big_endian (abfd);
+ /* Check for/establish the a reference program image. */
+ if (sim_analyze_program (sd,
+ (STATE_PROG_ARGV (sd) != NULL
+ ? *STATE_PROG_ARGV (sd)
+ : NULL), abfd) != SIM_RC_OK)
+ {
+ free_state (sd);
+ return 0;
+ }
+
+ /* Configure/verify the target byte order and other runtime
+ configuration options. */
+ if (sim_config (sd) != SIM_RC_OK)
+ {
+ sim_module_uninstall (sd);
+ return 0;
+ }
+
+ if (sim_post_argv_init (sd) != SIM_RC_OK)
+ {
+ /* Uninstall the modules to avoid memory leaks,
+ file descriptor leaks, etc. */
+ sim_module_uninstall (sd);
+ return 0;
+ }
+
+ /* CPU specific initialization. */
+ for (i = 0; i < MAX_NR_PROCESSORS; ++i)
+ {
+ SIM_CPU *cpu = STATE_CPU (sd, i);
+
+ CPU_REG_FETCH (cpu) = sh_reg_fetch;
+ CPU_REG_STORE (cpu) = sh_reg_store;
+ CPU_PC_FETCH (cpu) = sh_pc_get;
+ CPU_PC_STORE (cpu) = sh_pc_set;
+ }
+
+ for (p = argv + 1; *p != NULL; ++p)
+ {
+ if (isdigit (**p))
+ parse_and_set_memory_size (sd, *p);
+ }
if (abfd)
init_dsp (abfd);
mem_word.c[i] = i;
endianb = mem_word.i >> (target_little_endian ? 0 : 24) & 0xff;
- /* fudge our descriptor for now */
- return (SIM_DESC) 1;
+ return sd;
}
static void
-parse_and_set_memory_size (str)
- char *str;
+parse_and_set_memory_size (SIM_DESC sd, const char *str)
{
int n;
n = strtol (str, NULL, 10);
- if (n > 0 && n <= 24)
+ if (n > 0 && n <= 31)
sim_memory_size = n;
else
- callback->printf_filtered (callback, "Bad memory size %d; must be 1 to 24, inclusive\n", n);
-}
-
-void
-sim_close (sd, quitting)
- SIM_DESC sd;
- int quitting;
-{
- /* nothing to do */
+ sim_io_printf (sd, "Bad memory size %d; must be 1 to 31, inclusive\n", n);
}
SIM_RC
-sim_load (sd, prog, abfd, from_tty)
- SIM_DESC sd;
- char *prog;
- bfd *abfd;
- int from_tty;
-{
- extern bfd *sim_load_file (); /* ??? Don't know where this should live. */
- bfd *prog_bfd;
-
- prog_bfd = sim_load_file (sd, myname, callback, prog, abfd,
- sim_kind == SIM_OPEN_DEBUG,
- 0, sim_write);
-
- /* Set the bfd machine type. */
- if (prog_bfd)
- saved_state.asregs.bfd_mach = bfd_get_mach (prog_bfd);
- else if (abfd)
- saved_state.asregs.bfd_mach = bfd_get_mach (abfd);
- else
- saved_state.asregs.bfd_mach = 0;
-
- if (prog_bfd == NULL)
- return SIM_RC_FAIL;
- if (abfd == NULL)
- bfd_close (prog_bfd);
- return SIM_RC_OK;
-}
-
-SIM_RC
-sim_create_inferior (sd, prog_bfd, argv, env)
- SIM_DESC sd;
- struct bfd *prog_bfd;
- char **argv;
- char **env;
+sim_create_inferior (SIM_DESC sd, struct bfd *prog_bfd,
+ char * const *argv, char * const *env)
{
/* Clear the registers. */
memset (&saved_state, 0,
if (prog_bfd != NULL)
saved_state.asregs.bfd_mach = bfd_get_mach (prog_bfd);
- /* Record the program's arguments. */
- prog_argv = argv;
+ if (prog_bfd != NULL)
+ init_dsp (prog_bfd);
return SIM_RC_OK;
}
void
-sim_do_command (sd, cmd)
- SIM_DESC sd;
- char *cmd;
+sim_do_command (SIM_DESC sd, const char *cmd)
{
- char *sms_cmd = "set-memory-size";
+ const char *sms_cmd = "set-memory-size";
int cmdsize;
if (cmd == NULL || *cmd == '\0')
if (strncmp (cmd, sms_cmd, cmdsize) == 0
&& strchr (" \t", cmd[cmdsize]) != NULL)
{
- parse_and_set_memory_size (cmd + cmdsize + 1);
+ parse_and_set_memory_size (sd, cmd + cmdsize + 1);
}
else if (strcmp (cmd, "help") == 0)
{
- (callback->printf_filtered) (callback,
- "List of SH simulator commands:\n\n");
- (callback->printf_filtered) (callback, "set-memory-size <n> -- Set the number of address bits to use\n");
- (callback->printf_filtered) (callback, "\n");
+ sim_io_printf (sd, "List of SH simulator commands:\n\n");
+ sim_io_printf (sd, "set-memory-size <n> -- Set the number of address bits to use\n");
+ sim_io_printf (sd, "\n");
}
else
{
- (callback->printf_filtered) (callback, "Error: \"%s\" is not a valid SH simulator command.\n", cmd);
+ sim_io_printf (sd, "Error: \"%s\" is not a valid SH simulator command.\n", cmd);
}
}
-
-void
-sim_set_callbacks (p)
- host_callback *p;
-{
- callback = p;
-}
projects / deliverable / binutils-gdb.git / blobdiff