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952170707b
If the OS headers define the "errno" symbol, it breaks some of these funcs that were using "int errno" itself. Rename local vars to "err" to avoid that, and delete the old "extern int errno".
179 lines
4.0 KiB
C
179 lines
4.0 KiB
C
/* This file is part of the program psim.
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Copyright (C) 1994-1996, Andrew Cagney <cagney@highland.com.au>
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef _EMUL_GENERIC_H_
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#define _EMUL_GENERIC_H_
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#include "cpu.h"
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#include "idecode.h"
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#include "os_emul.h"
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#include "tree.h"
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#include "bfd.h"
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#include "libiberty.h"
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#ifndef INLINE_EMUL_GENERIC
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#define INLINE_EMUL_GENERIC
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#endif
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/* various PowerPC instructions for writing into memory */
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enum {
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emul_call_instruction = 0x1,
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emul_loop_instruction = 0x48000000, /* branch to . */
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emul_rfi_instruction = 0x4c000064,
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emul_blr_instruction = 0x4e800020,
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};
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/* emulation specific data */
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typedef struct _os_emul_data os_emul_data;
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typedef os_emul_data *(os_emul_create_handler)
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(device *tree,
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bfd *image,
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const char *emul_name);
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typedef void (os_emul_init_handler)
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(os_emul_data *emul_data,
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int nr_cpus);
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typedef void (os_emul_system_call_handler)
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(cpu *processor,
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unsigned_word cia,
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os_emul_data *emul_data);
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typedef int (os_emul_instruction_call_handler)
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(cpu *processor,
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unsigned_word cia,
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unsigned_word ra,
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os_emul_data *emul_data);
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struct _os_emul {
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const char *name;
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os_emul_create_handler *create;
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os_emul_init_handler *init;
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os_emul_system_call_handler *system_call;
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os_emul_instruction_call_handler *instruction_call;
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os_emul_data *data;
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};
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/* One class of emulation - system call is pretty general, provide a
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common template for implementing this */
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typedef struct _emul_syscall emul_syscall;
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typedef struct _emul_syscall_descriptor emul_syscall_descriptor;
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typedef void (emul_syscall_handler)
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(os_emul_data *emul_data,
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unsigned call,
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const int arg0,
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cpu *processor,
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unsigned_word cia);
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struct _emul_syscall_descriptor {
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emul_syscall_handler *handler;
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const char *name;
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};
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struct _emul_syscall {
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emul_syscall_descriptor *syscall_descriptor;
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int nr_system_calls;
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char **error_names;
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int nr_error_names;
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char **signal_names;
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int nr_signal_names;
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};
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INLINE_EMUL_GENERIC void emul_do_system_call
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(os_emul_data *emul_data,
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emul_syscall *syscall,
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unsigned call,
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const int arg0,
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cpu *processor,
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unsigned_word cia);
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INLINE_EMUL_GENERIC unsigned64 emul_read_gpr64
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(cpu *processor,
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int g);
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INLINE_EMUL_GENERIC void emul_write_gpr64
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(cpu *processor,
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int g,
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unsigned64 val);
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INLINE_EMUL_GENERIC void emul_write_status
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(cpu *processor,
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int status,
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int err);
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INLINE_EMUL_GENERIC void emul_write2_status
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(cpu *processor,
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int status1,
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int status2,
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int err);
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INLINE_EMUL_GENERIC char *emul_read_string
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(char *dest,
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unsigned_word addr,
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unsigned nr_bytes,
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cpu *processor,
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unsigned_word cia);
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INLINE_EMUL_GENERIC unsigned_word emul_read_word
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(unsigned_word addr,
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cpu *processor,
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unsigned_word cia);
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INLINE_EMUL_GENERIC void emul_write_word
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(unsigned_word addr,
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unsigned_word buf,
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cpu *processor,
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unsigned_word cia);
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INLINE_EMUL_GENERIC void emul_read_buffer
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(void *dest,
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unsigned_word addr,
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unsigned nr_bytes,
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cpu *processor,
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unsigned_word cia);
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INLINE_EMUL_GENERIC void emul_write_buffer
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(const void *source,
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unsigned_word addr,
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unsigned nr_bytes,
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cpu *processor,
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unsigned_word cia);
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/* Simplify the construction of device trees */
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INLINE_EMUL_GENERIC void emul_add_tree_options
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(device *tree,
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bfd *image,
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const char *emul,
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const char *env,
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int oea_interrupt_prefix);
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INLINE_EMUL_GENERIC void emul_add_tree_hardware
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(device *tree);
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#endif /* _EMUL_GENERIC_H_ */
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