#include "gdb/callback.h"
#include "gdb/remote-sim.h"
#include "gdb/sim-sh.h"
-#include "run-sim.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, const 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 (int x)
{
#define UNDEF(x)
#endif
-static void parse_and_set_memory_size (const char *str);
+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 int process_rwat_addr (int);
static int process_rbat_addr (int);
-static host_callback *callback;
-
-
-
/* Floating point registers */
#define DR(n) (get_dr (n))
return offset by which to adjust pc. */
static int
-trap (int i, int *regs, unsigned char *insn_ptr, unsigned char *memory,
- int maskl, int maskw, int endianw)
+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_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;
/* Set the memory size to the power of two provided. */
-void
+static void
sim_size (int power)
{
sim_memory_size = power;
static void
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);
#define MMASKB ((saved_state.asregs.msize -1) & ~0)
-int
-sim_stop (SIM_DESC sd)
-{
- raise_exception (SIGINT);
- return 1;
-}
-
void
sim_resume (SIM_DESC sd, int step, int siggnal)
{
insts++;
#endif
top:
- if (tracing)
- fprintf (stderr, "PC: %08lx, insn: %04x\n",
- (unsigned long) 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))
REGBANK_MACL = 19
};
-int
-sim_store_register (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;
return length;
}
-int
-sim_fetch_register (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 length;
}
-int
-sim_trace (SIM_DESC sd)
-{
- tracing = 1;
- sim_resume (sd, 0, 0);
- tracing = 0;
- return 1;
-}
-
void
sim_stop_reason (SIM_DESC sd, enum sim_stop *reason, int *sigrc)
{
(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 (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 (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 (SIM_OPEN_KIND kind, host_callback *cb, struct bfd *abfd, char **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;
+ }
+
+ /* 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 (abfd != NULL && ! endian_set)
- target_little_endian = ! bfd_big_endian (abfd);
+ 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 (const char *str)
+parse_and_set_memory_size (SIM_DESC sd, const char *str)
{
int n;
if (n > 0 && n <= 24)
sim_memory_size = n;
else
- callback->printf_filtered (callback, "Bad memory size %d; must be 1 to 24, inclusive\n", n);
-}
-
-void
-sim_close (SIM_DESC sd, int quitting)
-{
- /* nothing to do */
-}
-
-SIM_RC
-sim_load (SIM_DESC sd, const 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_io_printf (sd, "Bad memory size %d; must be 1 to 24, inclusive\n", n);
}
SIM_RC
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;
}
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 (host_callback *p)
-{
- callback = p;
-}
-
-char **
-sim_complete_command (SIM_DESC sd, const char *text, const char *word)
-{
- return NULL;
-}
projects / thirdparty / binutils-gdb.git / blobdiff