nuke lseek

2 files changed, 224 insertions, 56 deletions

diff --git a/sim/common/ChangeLog b/sim/common/ChangeLog
index b739491..7715b5b 100644
--- a/sim/common/ChangeLog
+++ b/sim/common/ChangeLog
@@ -1,3 +1,7 @@
+Tue Nov 25 20:12:46 1997  Michael Meissner  <meissner@cygnus.com>
+
+	* sim-io.c (sim_io_syscalls): Disable lseek.
+
 Tue Nov 25 00:12:38 1997  Doug Evans  <devans@seba.cygnus.com>
 
 	* gennltvals.sh: Generate syscall values for d30v.
diff --git a/sim/common/sim-io.c b/sim/common/sim-io.c
index 6d661c3..cea418f 100644
--- a/sim/common/sim-io.c
+++ b/sim/common/sim-io.c
@@ -19,71 +19,70 @@
     */
 
 
-#ifndef _SIM_IO_C_
-#define _SIM_IO_C_
-
-#include "sim-state.h"
+#include "sim-main.h"
+#include "sim-io.h"
+#include "targ-vals.h"
 
 /* See the file include/callbacks.h for a description */
 
 
-INLINE_SIM_IO(int)
+int
 sim_io_init(SIM_DESC sd)
 {
-  return sd->callback->init (sd->callback);
+  return STATE_CALLBACK (sd)->init (STATE_CALLBACK (sd));
 }
 
 
-INLINE_SIM_IO(int)
+int
 sim_io_shutdown(SIM_DESC sd)
 {
-  return sd->callback->shutdown (sd->callback);
+  return STATE_CALLBACK (sd)->shutdown (STATE_CALLBACK (sd));
 }
 
 
-INLINE_SIM_IO(int)
+int
 sim_io_unlink(SIM_DESC sd,
 	      const char *f1)
 {
-  return sd->callback->unlink (sd->callback, f1);
+  return STATE_CALLBACK (sd)->unlink (STATE_CALLBACK (sd), f1);
 }
 
 
-INLINE_SIM_IO(long)
+long
 sim_io_time(SIM_DESC sd,
 	    long *t)
 {
-  return sd->callback->time (sd->callback, t);
+  return STATE_CALLBACK (sd)->time (STATE_CALLBACK (sd), t);
 }
 
 
-INLINE_SIM_IO(int)
+int
 sim_io_system(SIM_DESC sd, const char *s)
 {
-  return sd->callback->system (sd->callback, s);
+  return STATE_CALLBACK (sd)->system (STATE_CALLBACK (sd), s);
 }
 
 
-INLINE_SIM_IO(int)
+int
 sim_io_rename(SIM_DESC sd,
 	      const char *f1,
 	      const char *f2)
 {
-  return sd->callback->rename (sd->callback, f1, f2);
+  return STATE_CALLBACK (sd)->rename (STATE_CALLBACK (sd), f1, f2);
 }
 
 
-INLINE_SIM_IO(int)
+int
 sim_io_write_stdout(SIM_DESC sd,
 		    const char *buf,
 		    int len)
 {
   switch (CURRENT_STDIO) {
   case DO_USE_STDIO:
-    return sd->callback->write_stdout (sd->callback, buf, len);
+    return STATE_CALLBACK (sd)->write_stdout (STATE_CALLBACK (sd), buf, len);
     break;
   case DONT_USE_STDIO:
-    return sd->callback->write (sd->callback, 1, buf, len);
+    return STATE_CALLBACK (sd)->write (STATE_CALLBACK (sd), 1, buf, len);
     break;
   default:
     sim_io_error (sd, "sim_io_write_stdout: unaccounted switch\n");
@@ -93,12 +92,12 @@ sim_io_write_stdout(SIM_DESC sd,
 }
 
 
-INLINE_SIM_IO(void)
+void
 sim_io_flush_stdout(SIM_DESC sd)
 {
   switch (CURRENT_STDIO) {
   case DO_USE_STDIO:
-    sd->callback->flush_stdout (sd->callback);
+    STATE_CALLBACK (sd)->flush_stdout (STATE_CALLBACK (sd));
     break;
   case DONT_USE_STDIO:
     break;
@@ -109,17 +108,17 @@ sim_io_flush_stdout(SIM_DESC sd)
 }
 
 
-INLINE_SIM_IO(int)
+int
 sim_io_write_stderr(SIM_DESC sd,
 		    const char *buf,
 		    int len)
 {
   switch (CURRENT_STDIO) {
   case DO_USE_STDIO:
-    return sd->callback->write_stderr (sd->callback, buf, len);
+    return STATE_CALLBACK (sd)->write_stderr (STATE_CALLBACK (sd), buf, len);
     break;
   case DONT_USE_STDIO:
-    return sd->callback->write (sd->callback, 2, buf, len);
+    return STATE_CALLBACK (sd)->write (STATE_CALLBACK (sd), 2, buf, len);
     break;
   default:
     sim_io_error (sd, "sim_io_write_stderr: unaccounted switch\n");
@@ -129,12 +128,12 @@ sim_io_write_stderr(SIM_DESC sd,
 }
 
 
-INLINE_SIM_IO(void)
+void
 sim_io_flush_stderr(SIM_DESC sd)
 {
   switch (CURRENT_STDIO) {
   case DO_USE_STDIO:
-    sd->callback->flush_stderr (sd->callback);
+    STATE_CALLBACK (sd)->flush_stderr (STATE_CALLBACK (sd));
     break;
   case DONT_USE_STDIO:
     break;
@@ -145,27 +144,27 @@ sim_io_flush_stderr(SIM_DESC sd)
 }
 
 
-INLINE_SIM_IO(int)
+int
 sim_io_write(SIM_DESC sd,
 	     int fd,
 	     const char *buf,
 	     int len)
 {
-  return sd->callback->write (sd->callback, fd, buf, len);
+  return STATE_CALLBACK (sd)->write (STATE_CALLBACK (sd), fd, buf, len);
 }
 
 
-INLINE_SIM_IO(int)
+int
 sim_io_read_stdin(SIM_DESC sd,
 		  char *buf,
 		  int len)
 {
   switch (CURRENT_STDIO) {
   case DO_USE_STDIO:
-    return sd->callback->read_stdin (sd->callback, buf, len);
+    return STATE_CALLBACK (sd)->read_stdin (STATE_CALLBACK (sd), buf, len);
     break;
   case DONT_USE_STDIO:
-    return sd->callback->read (sd->callback, 0, buf, len);
+    return STATE_CALLBACK (sd)->read (STATE_CALLBACK (sd), 0, buf, len);
     break;
   default:
     sim_io_error (sd, "sim_io_read_stdin: unaccounted switch\n");
@@ -175,118 +174,283 @@ sim_io_read_stdin(SIM_DESC sd,
 }
 
 
-INLINE_SIM_IO(int)
+int
 sim_io_read(SIM_DESC sd, int fd,
 	    char *buf,
 	    int len)
 {
-  return sd->callback->read (sd->callback, fd, buf, len);
+  return STATE_CALLBACK (sd)->read (STATE_CALLBACK (sd), fd, buf, len);
 }
 
 
-INLINE_SIM_IO(int)
+int
 sim_io_open(SIM_DESC sd,
 	    const char *name,
 	    int flags)
 {
-  return sd->callback->open (sd->callback, name, flags);
+  return STATE_CALLBACK (sd)->open (STATE_CALLBACK (sd), name, flags);
 }
 
 
-INLINE_SIM_IO(int)
+int
 sim_io_lseek(SIM_DESC sd,
 	     int fd,
 	     long off,
 	     int way)
 {
-  return sd->callback->lseek (sd->callback, fd, off, way);
+  return STATE_CALLBACK (sd)->lseek (STATE_CALLBACK (sd), fd, off, way);
 }
 
 
-INLINE_SIM_IO(int)
+int
 sim_io_isatty(SIM_DESC sd,
 	      int fd)
 {
-  return sd->callback->isatty (sd->callback, fd);
+  return STATE_CALLBACK (sd)->isatty (STATE_CALLBACK (sd), fd);
 }
 
 
-INLINE_SIM_IO(int)
+int
 sim_io_get_errno(SIM_DESC sd)
 {
-  return sd->callback->get_errno (sd->callback);
+  return STATE_CALLBACK (sd)->get_errno (STATE_CALLBACK (sd));
 }
 
 
-INLINE_SIM_IO(int)
+int
 sim_io_close(SIM_DESC sd,
 	     int fd)
 {
-  return sd->callback->close (sd->callback, fd);
+  return STATE_CALLBACK (sd)->close (STATE_CALLBACK (sd), fd);
 }
 
 
-INLINE_SIM_IO(void)
+void
 sim_io_printf(SIM_DESC sd,
 	      const char *fmt,
 	      ...)
 {
   va_list ap;
   va_start(ap, fmt);
-  sd->callback->vprintf_filtered (sd->callback, fmt, ap);
+  STATE_CALLBACK (sd)->vprintf_filtered (STATE_CALLBACK (sd), fmt, ap);
   va_end(ap);
 }
 
 
-INLINE_SIM_IO(void)
+void
 sim_io_vprintf(SIM_DESC sd,
 	       const char *fmt,
 	       va_list ap)
 {
-  sd->callback->vprintf_filtered (sd->callback, fmt, ap);
+  STATE_CALLBACK (sd)->vprintf_filtered (STATE_CALLBACK (sd), fmt, ap);
 }
 
 
-INLINE_SIM_IO(void)
+void
 sim_io_eprintf(SIM_DESC sd,
 	      const char *fmt,
 	      ...)
 {
   va_list ap;
   va_start(ap, fmt);
-  sd->callback->evprintf_filtered (sd->callback, fmt, ap);
+  STATE_CALLBACK (sd)->evprintf_filtered (STATE_CALLBACK (sd), fmt, ap);
   va_end(ap);
 }
 
 
-INLINE_SIM_IO(void)
+void
 sim_io_evprintf(SIM_DESC sd,
 		const char *fmt,
 		va_list ap)
 {
-  sd->callback->evprintf_filtered (sd->callback, fmt, ap);
+  STATE_CALLBACK (sd)->evprintf_filtered (STATE_CALLBACK (sd), fmt, ap);
 }
 
 
-INLINE_SIM_IO(void)
+void
 sim_io_error(SIM_DESC sd,
 	     const char *fmt,
 	     ...)
 {
-  if (sd == NULL || sd->callback == NULL) {
+  if (sd == NULL || STATE_CALLBACK (sd) == NULL) {
     va_list ap;
     va_start(ap, fmt);
     vfprintf (stderr, fmt, ap);
     va_end(ap);
+    fprintf (stderr, "\n");
     abort ();
   }
   else {
     va_list ap;
     va_start(ap, fmt);
-    sd->callback->evprintf_filtered (sd->callback, fmt, ap);
+    STATE_CALLBACK (sd)->evprintf_filtered (STATE_CALLBACK (sd), fmt, ap);
     va_end(ap);
-    sd->callback->error (sd->callback, "");
+    STATE_CALLBACK (sd)->error (STATE_CALLBACK (sd), "");
   }
 }
 
-#endif
+
+void
+sim_io_poll_quit(SIM_DESC sd)
+{
+  if (STATE_CALLBACK (sd)->poll_quit != NULL)
+    if (STATE_CALLBACK (sd)->poll_quit (STATE_CALLBACK (sd)))
+      sim_stop (sd);
+}
+
+
+static char *
+sim_io_getstring(SIM_DESC sd,
+		 sim_cpu *cpu,
+		 address_word cia,
+		 address_word target_string)
+{
+  int len = 0;
+  int len2;
+  char *buf;
+
+  while (sim_core_read_1 (cpu, cia, sim_core_read_map, target_string+len) != 0)
+    len++;
+
+  buf = NZALLOC (char, len+1);
+  buf[len] = '\0';
+  sim_core_read_buffer (sd, cpu, sim_core_read_map, buf, target_string, len);
+  return buf;
+}
+
+void
+sim_io_syscalls(SIM_DESC sd,
+		int syscall,
+		address_word cia,
+		address_word parm1,
+		address_word parm2,
+		address_word parm3,
+		address_word parm4,
+		address_word *syscall_return,
+		address_word *errno_return)
+{
+  sim_cpu *cpu = STATE_CPU (sd, 0);
+  struct host_callback_struct *callback = STATE_CALLBACK (sd);
+  int len, len2, len3;
+  int ret;
+  char *buf;
+  int fd;
+  int sys_errno = 0;
+
+  *errno_return = 0;
+  *syscall_return = 0;
+
+  switch (syscall)
+    {
+    case 1:			/* exit (status) */
+      sim_engine_halt (sd, STATE_CPU (sd, 0), NULL, cia, sim_exited, parm1);
+      break;
+
+    case 2:			/* open (filename, flags, mode) */
+      buf = sim_io_getstring (sd, cpu, cia, parm1);
+      ret = *syscall_return = callback->open (callback, buf, parm2);
+      if (ret < 0)
+	*errno_return = callback->get_errno (callback);
+
+      zfree (buf);
+      break;
+
+    case 3:			/* close (filedes) */
+      ret = *syscall_return = callback->close (callback, parm1);
+      if (ret < 0)
+	*errno_return = callback->get_errno (callback);
+      break;
+
+    case 4:			/* read (filedes, buffer, len) */
+      fd = parm1;
+      len = parm3;
+      buf = NZALLOC (char, len);
+
+      if (fd == 0)
+	len2 = sim_io_read_stdin (sd, buf, len);
+      else
+	len2 = sim_io_read (sd, fd, buf, len);
+
+      if (len2 > 0)
+	{
+	  len3 = sim_core_write_buffer (sd, cpu, sim_core_write_map, buf, parm2,
+					len);
+
+	  if (len3 < len2)
+	    sim_engine_abort (sd, cpu, cia,
+			      "Could only write back %d bytes for read system call, wanted to write %d\n",
+			      len3, len2);
+
+	  *syscall_return = len2;
+	}
+      else
+	*errno_return = callback->get_errno (callback);
+
+      zfree (buf);
+      break;
+
+    case 5:			/* write (filedes, buffer, len) */
+      fd = parm1;
+      len = parm3;
+      buf = NZALLOC (char, len);
+
+      len = sim_core_read_buffer (sd, cpu, sim_core_read_map, buf, parm2, len);
+      if (fd == 1)
+	{
+	  len2 = sim_io_write_stdout (sd, buf, len);
+	  sim_io_flush_stdout (sd);
+	}
+      else if (fd == 2)
+	{
+	  len2 = sim_io_write_stderr (sd, buf, len);
+	  sim_io_flush_stderr (sd);
+	}
+      else
+	len2 = sim_io_write (sd, fd, buf, len);
+
+      if (len2 > 0)
+	*syscall_return = len2;
+      else
+	*errno_return = callback->get_errno (callback);
+
+      zfree (buf);
+      break;
+      
+    case 6:			/* lseek (filedes, offset, whence) */
+      *errno_return = TARGET_ENOSYS;
+      break;
+
+    case 7:			/* unlink (filename) */
+      buf = sim_io_getstring (sd, cpu, cia, parm1);
+      ret = *syscall_return = callback->unlink (callback, buf);
+      if (ret < 0)
+	*errno_return = callback->get_errno (callback);
+
+      zfree (buf);
+      break;
+
+    case 8:			/* getpid () */
+    case 9:			/* kill (signal, pid) */
+    case 10:			/* fstat (filedes, packet) */
+    case 11:			/* reserved for sbrk */
+    case 12:			/* argvlen () */
+    case 13:			/* argv () */
+    case 14:			/* chdir (dir) */
+    case 15:			/* stat (filename, packet) */
+    case 16:			/* chmod (filename, mode) */
+    case 17:			/* utime (filename, packet) */
+    case 18:			/* time (time_t *) */
+      *errno_return = TARGET_ENOSYS;
+      break;
+
+    default:
+      sim_engine_abort (sd, cpu, cia, "Unknown monitor call %d", syscall);
+      break;
+    }
+
+  if (*errno_return)
+    *syscall_return = -1;
+
+  return;
+}
+