Enable to track git://github.com/monaka/binutils.git

[pf3gnuchains/pf3gnuchains3x.git] / sid / component / gloss / angel.h

diff --git a/sid/component/gloss/angel.h b/sid/component/gloss/angel.h
new file mode 100644 (file)
index 0000000..adc92a2
--- /dev/null
+++ b/sid/component/gloss/angel.h
@@ -0,0 +1,120 @@
+// angel.h - A limited emulation component for the Angel ROM monitor
+// that features onthe ARM PID7T development board.  -*- C++ -*-
+
+// Copyright (C) 1999-2001 Red Hat.
+// This file is part of SID and is licensed under the GPL.
+// See the file COPYING.SID for conditions for redistribution.
+
+// Details of the Angel ROM monitor and, specifically, the system call
+// interface, can be found in Chapter 8 of the ARM Software
+// Development Toolkit Reference Guide (ARM part no. DUI 0041B).
+
+#ifndef ANGEL_H
+#define ANGEL_H
+
+// FIXME: Move to common area.
+extern "C" {
+#ifdef HAVE_SYS_TYPES_H
+#include <sys/types.h>
+#endif
+#ifdef HAVE_SYS_TIME_H
+#include <sys/time.h>
+#endif
+#ifdef HAVE_TIME_H
+#include <time.h>
+#endif
+}
+
+#include "gloss.h"
+
+using sidutil::make_attribute;
+using sidutil::parse_attribute;
+
+class arm_angel: public gloss32
+{
+public:
+
+  arm_angel();
+
+private:
+
+  enum syscalls /* See also: newlib/libc/sys/arm/swi.h AngelSWI_Reason_* */
+  {
+    syscall_open = 0x1,
+    syscall_close = 0x2,
+    syscall_writec = 0x3,
+    syscall_write0 = 0x4,
+    syscall_write = 0x5,
+    syscall_read = 0x6,
+    syscall_readc = 0x7,
+    syscall_iserror,
+    syscall_istty = 0x9,
+    syscall_seek = 0xA,
+    syscall_flen = 0xC,
+    syscall_tmpnam = 0xD,
+    syscall_remove = 0xE,
+    syscall_rename = 0xF,
+    syscall_clock = 0x10,
+    syscall_time = 0x11,
+    syscall_system = 0x12,
+    syscall_errno = 0x13,
+    syscall_get_cmdline = 0x15,
+    syscall_heapinfo = 0x16,
+    syscall_report_exception = 0x18
+  };
+
+  enum exceptions {
+    exception_rte = 0x20022,  // Runtime error.
+    exception_exit = 0x20026
+  };
+
+  int32 errnum;
+  uint32 heapBase, heapLimit;
+  uint32 stackBase, stackLimit;
+
+  clock_t startupTime;
+
+  // We need to do some extra processing at reset time.
+  void reset();
+
+  // ABI-specifics, for getting syscall arguments and setting results.
+  // ??? Class by itself.
+  // ??? Perhaps this shouldn't be here at all as it's really an
+  // implementation detail (but lots of implementations will probably use it).
+  bool get_int_argument(unsigned index, int32& value);
+  bool set_int_result(int32 value);
+  bool set_error_result(int32 value);
+
+  // Return boolean indicating if cpu is requesting something we're to handle.
+  bool syscall_trap_p();
+  // Perform a system call trap.
+  void syscall_trap();
+
+  // Convert host errno to target errno.
+  int host_to_target_errno (int errno_);
+  // Cover fn for set_error_result (host_to_target_errno (errcode)).
+  bool set_host_error_result (int32 errcode);
+
+  // Methods to handle the individual system calls.
+  void do_clock();
+  void do_close();
+  void do_flen();
+  void do_get_cmdline();
+  void do_heapinfo();
+  void do_iserror();
+  void do_istty();
+  void do_open();
+  void do_read();
+  void do_readc();
+  void do_remove();
+  void do_rename();
+  void do_report_exception();
+  void do_seek();
+  void do_system();
+  void do_tmpnam();
+  void do_write();
+  void do_write0();
+  void do_writec();
+};
+
+#endif // ANGEL_H