Initial creation of sourceware repositorygdb-4_18-branchpoint

1 files changed, 60 insertions, 0 deletions

diff --git a/sim/ppc/os_emul.h b/sim/ppc/os_emul.h
new file mode 100644
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+++ b/sim/ppc/os_emul.h
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+/*  This file is part of the program psim.
+
+    Copyright (C) 1994-1995, Andrew Cagney <cagney@highland.com.au>
+
+    This program is free software; you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation; either version 2 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+ 
+    You should have received a copy of the GNU General Public License
+    along with this program; if not, write to the Free Software
+    Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ 
+    */
+
+
+#ifndef _OS_EMUL_H_
+#define _OS_EMUL_H_
+
+typedef struct _os_emul os_emul;
+
+INLINE_OS_EMUL\
+(os_emul *) os_emul_create
+(const char *file_name,
+ device *root);
+
+INLINE_OS_EMUL\
+(void) os_emul_init
+(os_emul *emulation,
+ int nr_cpus);
+
+
+/* System-call emulation - for user code.  Instead of trapping system
+   calls to kernel mode, the simulator emulates the kernels behavour */
+
+INLINE_OS_EMUL\
+(void) os_emul_system_call
+(cpu *processor,
+ unsigned_word cia);
+
+
+/* Instruction emulation - for kernel code.  Extra (normally illegal)
+   instructions are added to the instruction table that when executed
+   call this emulation function. The instruction call emulator should
+   verify the address that the instruction appears before emulating
+   the required behavour.  If the verification fails, a zero value
+   should be returned (indicating instruction illegal). */
+
+INLINE_OS_EMUL\
+(int) os_emul_instruction_call
+(cpu *processor,
+ unsigned_word cia,
+ unsigned_word ra);
+
+#endif