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-rw-r--r--sim/sh/interp.c278
1 files changed, 74 insertions, 204 deletions
diff --git a/sim/sh/interp.c b/sim/sh/interp.c
index adf05ee..13f6e65 100644
--- a/sim/sh/interp.c
+++ b/sim/sh/interp.c
@@ -67,7 +67,10 @@
#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"
@@ -91,9 +94,11 @@
#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
@@ -103,108 +108,7 @@ int sim_write (SIM_DESC sd, SIM_ADDR addr, const unsigned char *buffer, int size
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; };
@@ -212,20 +116,15 @@ 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 == LITTLE_ENDIAN)
static int global_endianw, endianb;
static int target_dsp;
-static int host_little_endian;
+#define host_little_endian (CURRENT_HOST_BYTE_ORDER == LITTLE_ENDIAN)
static char **prog_argv;
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)
@@ -1687,7 +1586,7 @@ mcalloc (size_t nmemb, size_t size)
/* Set the memory size to the power of two provided. */
-void
+static void
sim_size (int power)
{
sim_memory_size = power;
@@ -1809,10 +1708,6 @@ init_dsp (struct bfd *abfd)
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);
@@ -1869,13 +1764,6 @@ gotcall (int from, int to)
#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)
{
@@ -1968,9 +1856,6 @@ 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"
@@ -2436,15 +2321,6 @@ sim_fetch_register (SIM_DESC sd, int rn, unsigned char *memory, int length)
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)
{
@@ -2497,23 +2373,19 @@ sim_info (SIM_DESC sd, int verbose)
}
}
-void
-sim_set_profile (int n)
-{
- saved_state.asregs.profile = n;
-}
-
-void
-sim_set_profile_size (int n)
+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
{
@@ -2523,32 +2395,65 @@ sim_open (SIM_OPEN_KIND kind, host_callback *cb, struct bfd *abfd, char **argv)
}
mem_word;
- sim_kind = kind;
- myname = argv[0];
+ SIM_DESC sd = sim_state_alloc (kind, cb);
+ SIM_ASSERT (STATE_MAGIC (sd) == SIM_MAGIC_NUMBER);
+
callback = cb;
+ /* 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)
+ {
+ free_state (sd);
+ return 0;
+ }
+
+ if (sim_pre_argv_init (sd, argv[0]) != SIM_RC_OK)
+ {
+ free_state (sd);
+ return 0;
+ }
+
+ /* getopt will print the error message so we just have to exit if this fails.
+ FIXME: Hmmm... in the case of gdb we need getopt to call
+ print_filtered. */
+ 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 (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;
+ }
+
for (p = argv + 1; *p != NULL; ++p)
{
- 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))
+ if (isdigit (**p))
parse_and_set_memory_size (*p);
}
- if (abfd != NULL && ! endian_set)
- target_little_endian = ! bfd_big_endian (abfd);
-
if (abfd)
init_dsp (abfd);
@@ -2560,8 +2465,7 @@ sim_open (SIM_OPEN_KIND kind, host_callback *cb, struct bfd *abfd, char **argv)
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
@@ -2583,31 +2487,6 @@ sim_close (SIM_DESC sd, int quitting)
}
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_RC
sim_create_inferior (SIM_DESC sd, struct bfd *prog_bfd, char **argv, char **env)
{
/* Clear the registers. */
@@ -2622,6 +2501,9 @@ sim_create_inferior (SIM_DESC sd, struct bfd *prog_bfd, char **argv, char **env)
if (prog_bfd != NULL)
saved_state.asregs.bfd_mach = bfd_get_mach (prog_bfd);
+ if (prog_bfd != NULL)
+ init_dsp (prog_bfd);
+
/* Record the program's arguments. */
prog_argv = argv;
@@ -2657,15 +2539,3 @@ sim_do_command (SIM_DESC sd, const char *cmd)
(callback->printf_filtered) (callback, "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;
-}
generated by cgit v1.1 at 2024-12-12 13:50:59 +0000