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/*==========================================================================
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//
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// syscall.c
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//
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// Redboot syscall handling for GNUPro bsp support
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//
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//==========================================================================
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//####ECOSGPLCOPYRIGHTBEGIN####
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// -------------------------------------------
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// This file is part of eCos, the Embedded Configurable Operating System.
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// Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003 Red Hat, Inc.
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//
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// eCos is free software; you can redistribute it and/or modify it under
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// the terms of the GNU General Public License as published by the Free
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// Software Foundation; either version 2 or (at your option) any later version.
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//
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// eCos is distributed in the hope that it will be useful, but WITHOUT ANY
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// WARRANTY; without even the implied warranty of MERCHANTABILITY or
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// FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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// for more details.
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//
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// You should have received a copy of the GNU General Public License along
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// with eCos; if not, write to the Free Software Foundation, Inc.,
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// 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
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//
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// As a special exception, if other files instantiate templates or use macros
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// or inline functions from this file, or you compile this file and link it
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// with other works to produce a work based on this file, this file does not
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// by itself cause the resulting work to be covered by the GNU General Public
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// License. However the source code for this file must still be made available
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// in accordance with section (3) of the GNU General Public License.
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//
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// This exception does not invalidate any other reasons why a work based on
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// this file might be covered by the GNU General Public License.
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//
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// Alternative licenses for eCos may be arranged by contacting Red Hat, Inc.
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// at http://sources.redhat.com/ecos/ecos-license/
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// -------------------------------------------
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//####ECOSGPLCOPYRIGHTEND####
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//==========================================================================
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//#####DESCRIPTIONBEGIN####
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//
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// Author(s): msalter
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// Contributors: msalter
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// Date: 1999-02-20
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// Purpose: Temporary support for gnupro bsp
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//
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//####DESCRIPTIONEND####
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//
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//=========================================================================*/
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#include <redboot.h>
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#include <cyg/hal/hal_intr.h>
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#include <cyg/hal/drv_api.h>
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#include <cyg/hal/hal_stub.h>
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#ifdef CYGSEM_REDBOOT_BSP_SYSCALLS
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#define NEWLIB_EIO 5 /* I/O error */
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#define NEWLIB_ENOSYS 88 /* Syscall not supported */
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/*
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* Clients of this BSP will need to have access to BSP functions and
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* data structures. Because, the client and the BSP may not be linked
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* together, a structure of vectors is used to gain this access. A
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* pointer to this structure can be gotten via a syscall. This syscall
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* is made automatically from within the crt0.o file.
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*/
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typedef struct {
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int version; /* version number for future expansion */
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const void **__ictrl_table;
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void **__exc_table;
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void *__dbg_vector;
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void *__kill_vector;
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void *__console_procs;
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void *__debug_procs;
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void (*__flush_dcache)(void *__p, int __nbytes);
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void (*__flush_icache)(void *__p, int __nbytes);
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void *__cpu_data;
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void *__board_data;
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void *__sysinfo;
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int (*__set_debug_comm)(int __comm_id);
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83 |
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int (*__set_console_comm)(int __comm_id);
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int (*__set_serial_baud)(int __comm_id, int baud);
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85 |
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void *__dbg_data;
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void (*__reset)(void);
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int __console_interrupt_flag;
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88 |
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} __shared_t;
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static __shared_t __shared_data = { 2 };
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// this is used by newlib's mode_t so we should match it
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#ifdef __GNUC__
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#define _ST_INT32 __attribute__ ((__mode__ (__SI__)))
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#else
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#define _ST_INT32
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#endif
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typedef unsigned int newlib_mode_t _ST_INT32;
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typedef short newlib_dev_t;
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typedef unsigned short newlib_ino_t;
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101 |
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typedef unsigned short newlib_nlink_t;
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102 |
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typedef long newlib_off_t;
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typedef unsigned short newlib_uid_t;
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typedef unsigned short newlib_gid_t;
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typedef long newlib_time_t;
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typedef long newlib_long_t;
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struct newlib_stat
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{
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newlib_dev_t st_dev;
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newlib_ino_t st_ino;
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newlib_mode_t st_mode;
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newlib_nlink_t st_nlink;
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newlib_uid_t st_uid;
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newlib_gid_t st_gid;
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newlib_dev_t st_rdev;
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newlib_off_t st_size;
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// We assume we've been compiled with the same flags as newlib here
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#if defined(__svr4__) && !defined(__PPC__) && !defined(__sun__)
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newlib_time_t st_atime;
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newlib_time_t st_mtime;
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newlib_time_t st_ctime;
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#else
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newlib_time_t st_atime;
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newlib_long_t st_spare1;
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newlib_time_t st_mtime;
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newlib_long_t st_spare2;
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newlib_time_t st_ctime;
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129 |
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newlib_long_t st_spare3;
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130 |
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newlib_long_t st_blksize;
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131 |
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newlib_long_t st_blocks;
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132 |
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newlib_long_t st_spare4[2];
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#endif
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};
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135 |
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#define NEWLIB_S_IFCHR 0020000 // character special file
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136 |
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|
137 |
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static inline char __getc(void)
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138 |
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{
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139 |
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char c;
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140 |
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hal_virtual_comm_table_t* __chan = CYGACC_CALL_IF_CONSOLE_PROCS();
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141 |
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142 |
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if (__chan)
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c = CYGACC_COMM_IF_GETC(*__chan);
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144 |
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else {
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145 |
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__chan = CYGACC_CALL_IF_DEBUG_PROCS();
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146 |
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c = CYGACC_COMM_IF_GETC(*__chan);
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147 |
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}
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148 |
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return c;
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149 |
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}
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150 |
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151 |
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static inline void __putc(char c)
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152 |
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{
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153 |
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hal_virtual_comm_table_t* __chan = CYGACC_CALL_IF_CONSOLE_PROCS();
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154 |
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if (__chan)
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CYGACC_COMM_IF_PUTC(*__chan, c);
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156 |
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else {
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157 |
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__chan = CYGACC_CALL_IF_DEBUG_PROCS();
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158 |
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CYGACC_COMM_IF_PUTC(*__chan, c);
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159 |
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}
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160 |
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}
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161 |
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162 |
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163 |
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static inline void __flush(void)
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164 |
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{
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165 |
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hal_virtual_comm_table_t* __chan = CYGACC_CALL_IF_CONSOLE_PROCS();
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166 |
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167 |
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if (__chan == NULL)
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168 |
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__chan = CYGACC_CALL_IF_DEBUG_PROCS();
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169 |
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170 |
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CYGACC_COMM_IF_CONTROL(*__chan, __COMMCTL_FLUSH_OUTPUT);
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171 |
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}
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172 |
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173 |
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// Timer support
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174 |
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static cyg_handle_t sys_timer_handle;
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static cyg_interrupt sys_timer_interrupt;
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static cyg_uint64 sys_timer_ticks = 0;
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178 |
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179 |
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#ifdef CYGSEM_REDBOOT_BSP_SYSCALLS_GPROF
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180 |
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181 |
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static unsigned int set_period = CYGNUM_HAL_RTC_PERIOD; // The default
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182 |
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183 |
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typedef void *callback_func( char *pc, char *sp );
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184 |
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static callback_func *timer_callback = 0;
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185 |
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186 |
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#endif // CYGSEM_REDBOOT_BSP_SYSCALLS_GPROF
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187 |
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188 |
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static void
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189 |
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sys_timer_dsr(cyg_vector_t vector, cyg_ucount32 count, cyg_addrword_t data)
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190 |
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{
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191 |
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// do nothing
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192 |
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}
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193 |
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194 |
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195 |
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static cyg_uint32
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196 |
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sys_timer_isr(cyg_vector_t vector, cyg_addrword_t data)
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197 |
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{
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198 |
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++sys_timer_ticks;
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199 |
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|
200 |
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#ifdef CYGSEM_REDBOOT_BSP_SYSCALLS_GPROF
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201 |
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HAL_CLOCK_RESET(CYGNUM_HAL_INTERRUPT_RTC, set_period);
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202 |
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#else
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203 |
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HAL_CLOCK_RESET(CYGNUM_HAL_INTERRUPT_RTC, CYGNUM_HAL_RTC_PERIOD);
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204 |
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#endif // CYGSEM_REDBOOT_BSP_SYSCALLS_GPROF
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205 |
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206 |
|
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cyg_drv_interrupt_acknowledge(CYGNUM_HAL_INTERRUPT_RTC);
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207 |
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208 |
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#ifdef CYGSEM_REDBOOT_BSP_SYSCALLS_GPROF
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209 |
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if ( timer_callback ) {
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210 |
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char *intrpc = (char *)0;
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211 |
|
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char *intrsp = (char *)0;
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212 |
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|
213 |
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// There may be a number of ways to get the PC and (optional) SP
|
214 |
|
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// information out of the HAL. Hence this is conditioned. In some
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215 |
|
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// configurations, a register-set pointer is available as
|
216 |
|
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// (invisible) argument 3 to this ISR call.
|
217 |
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|
218 |
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#ifdef HAL_GET_PROFILE_INFO
|
219 |
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HAL_GET_PROFILE_INFO( intrpc, intrsp );
|
220 |
|
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#endif // HAL_GET_PROFILE_INFO available
|
221 |
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|
222 |
|
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CYGARC_HAL_SAVE_GP();
|
223 |
|
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timer_callback( intrpc, intrsp );
|
224 |
|
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CYGARC_HAL_RESTORE_GP();
|
225 |
|
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}
|
226 |
|
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#endif // CYGSEM_REDBOOT_BSP_SYSCALLS_GPROF
|
227 |
|
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return CYG_ISR_HANDLED;
|
228 |
|
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}
|
229 |
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|
230 |
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|
231 |
|
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static void sys_timer_init(void)
|
232 |
|
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{
|
233 |
|
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#ifdef CYGSEM_REDBOOT_BSP_SYSCALLS_GPROF
|
234 |
|
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HAL_CLOCK_INITIALIZE(set_period);
|
235 |
|
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#else
|
236 |
|
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HAL_CLOCK_INITIALIZE(CYGNUM_HAL_RTC_PERIOD);
|
237 |
|
|
#endif // CYGSEM_REDBOOT_BSP_SYSCALLS_GPROF
|
238 |
|
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|
239 |
|
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cyg_drv_interrupt_create(
|
240 |
|
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CYGNUM_HAL_INTERRUPT_RTC,
|
241 |
|
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0, // Priority - unused
|
242 |
|
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(CYG_ADDRWORD)0, // Data item passed to ISR & DSR
|
243 |
|
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sys_timer_isr, // ISR
|
244 |
|
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sys_timer_dsr, // DSR
|
245 |
|
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&sys_timer_handle, // handle to intr obj
|
246 |
|
|
&sys_timer_interrupt ); // space for int obj
|
247 |
|
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|
248 |
|
|
cyg_drv_interrupt_attach(sys_timer_handle);
|
249 |
|
|
|
250 |
|
|
cyg_drv_interrupt_unmask(CYGNUM_HAL_INTERRUPT_RTC);
|
251 |
|
|
}
|
252 |
|
|
|
253 |
|
|
|
254 |
|
|
//
|
255 |
|
|
// read -- read bytes from the serial port. Ignore fd, since
|
256 |
|
|
// we only have stdin.
|
257 |
|
|
static int
|
258 |
|
|
sys_read(int fd, char *buf, int nbytes)
|
259 |
|
|
{
|
260 |
|
|
int i = 0;
|
261 |
|
|
|
262 |
|
|
for (i = 0; i < nbytes; i++) {
|
263 |
|
|
*(buf + i) = __getc();
|
264 |
|
|
if ((*(buf + i) == '\n') || (*(buf + i) == '\r')) {
|
265 |
|
|
(*(buf + i + 1)) = 0;
|
266 |
|
|
break;
|
267 |
|
|
}
|
268 |
|
|
}
|
269 |
|
|
return (i);
|
270 |
|
|
}
|
271 |
|
|
|
272 |
|
|
|
273 |
|
|
//
|
274 |
|
|
// write -- write bytes to the serial port. Ignore fd, since
|
275 |
|
|
// stdout and stderr are the same. Since we have no filesystem,
|
276 |
|
|
// open will only return an error.
|
277 |
|
|
//
|
278 |
|
|
static int
|
279 |
|
|
sys_write(int fd, char *buf, int nbytes)
|
280 |
|
|
{
|
281 |
|
|
#define WBUFSIZE 256
|
282 |
|
|
int tosend;
|
283 |
|
|
|
284 |
|
|
tosend = nbytes;
|
285 |
|
|
|
286 |
|
|
while (tosend > 0) {
|
287 |
|
|
if (*buf == '\n')
|
288 |
|
|
__putc('\r');
|
289 |
|
|
__putc(*buf++);
|
290 |
|
|
tosend--;
|
291 |
|
|
}
|
292 |
|
|
__flush();
|
293 |
|
|
|
294 |
|
|
return (nbytes);
|
295 |
|
|
}
|
296 |
|
|
|
297 |
|
|
|
298 |
|
|
//
|
299 |
|
|
// open -- open a file descriptor. We don't have a filesystem, so
|
300 |
|
|
// we return an error.
|
301 |
|
|
//
|
302 |
|
|
static int
|
303 |
|
|
sys_open (const char *buf, int flags, int mode)
|
304 |
|
|
{
|
305 |
|
|
return (-NEWLIB_EIO);
|
306 |
|
|
}
|
307 |
|
|
|
308 |
|
|
//
|
309 |
|
|
// close -- We don't need to do anything, but pretend we did.
|
310 |
|
|
//
|
311 |
|
|
static int
|
312 |
|
|
sys_close(int fd)
|
313 |
|
|
{
|
314 |
|
|
return (0);
|
315 |
|
|
}
|
316 |
|
|
|
317 |
|
|
|
318 |
|
|
//
|
319 |
|
|
// lseek -- Since a serial port is non-seekable, we return an error.
|
320 |
|
|
//
|
321 |
|
|
static int
|
322 |
|
|
sys_lseek(int fd, int offset, int whence)
|
323 |
|
|
{
|
324 |
|
|
return (-NEWLIB_EIO);
|
325 |
|
|
}
|
326 |
|
|
|
327 |
|
|
|
328 |
|
|
#define NS_PER_TICK (CYGNUM_HAL_RTC_NUMERATOR/CYGNUM_HAL_RTC_DENOMINATOR)
|
329 |
|
|
#define TICKS_PER_SEC (1000000000ULL / NS_PER_TICK)
|
330 |
|
|
|
331 |
|
|
// This needs to match newlib HZ which is normally 60.
|
332 |
|
|
#define HZ (60ULL)
|
333 |
|
|
|
334 |
|
|
#ifdef CYGSEM_REDBOOT_BSP_SYSCALLS_GPROF
|
335 |
|
|
static unsigned int set_freq = TICKS_PER_SEC; // The default
|
336 |
|
|
#endif // CYGSEM_REDBOOT_BSP_SYSCALLS_GPROF
|
337 |
|
|
static int
|
338 |
|
|
sys_times(unsigned long *p)
|
339 |
|
|
{
|
340 |
|
|
static int inited = 0;
|
341 |
|
|
|
342 |
|
|
if (!inited) {
|
343 |
|
|
inited = 1;
|
344 |
|
|
sys_timer_init();
|
345 |
|
|
}
|
346 |
|
|
|
347 |
|
|
/* target clock runs at CLOCKS_PER_SEC. Convert to HZ */
|
348 |
|
|
if (p)
|
349 |
|
|
#ifdef CYGSEM_REDBOOT_BSP_SYSCALLS_GPROF
|
350 |
|
|
*p = (sys_timer_ticks * HZ) / (cyg_uint64)set_freq;
|
351 |
|
|
#else
|
352 |
|
|
*p = (sys_timer_ticks * HZ) / TICKS_PER_SEC;
|
353 |
|
|
#endif // CYGSEM_REDBOOT_BSP_SYSCALLS_GPROF
|
354 |
|
|
|
355 |
|
|
return 0;
|
356 |
|
|
}
|
357 |
|
|
|
358 |
|
|
#ifdef CYGSEM_REDBOOT_BSP_SYSCALLS_GPROF
|
359 |
|
|
|
360 |
|
|
static void sys_profile_call_back( char *func, char **previous_call_back )
|
361 |
|
|
{
|
362 |
|
|
if ( previous_call_back )
|
363 |
|
|
*previous_call_back = (char *)timer_callback;
|
364 |
|
|
|
365 |
|
|
timer_callback = (callback_func *)func;
|
366 |
|
|
|
367 |
|
|
// Ensure the timer is started
|
368 |
|
|
(void)sys_times( (unsigned long *)0 );
|
369 |
|
|
}
|
370 |
|
|
|
371 |
|
|
static void sys_profile_frequency( int freq, int *previous_freq )
|
372 |
|
|
{
|
373 |
|
|
// Requested HZ:
|
374 |
|
|
// 0 => tell me the current value (no change, IMPLEMENTED HERE)
|
375 |
|
|
// - 1 => tell me the slowest (no change)
|
376 |
|
|
// - 2 => tell me the default (no change, IMPLEMENTED HERE)
|
377 |
|
|
// -nnn => tell me what you would choose for nnn (no change)
|
378 |
|
|
// MIN_INT => tell me the fastest (no change)
|
379 |
|
|
//
|
380 |
|
|
// 1 => tell me the slowest (sets the clock)
|
381 |
|
|
// MAX_INT => tell me the fastest (sets the clock)
|
382 |
|
|
|
383 |
|
|
// Ensure the timer is started
|
384 |
|
|
(void)sys_times( (unsigned long *)0 );
|
385 |
|
|
|
386 |
|
|
if ( -2 == freq )
|
387 |
|
|
freq = TICKS_PER_SEC; // default value
|
388 |
|
|
else if ( 0 == freq )
|
389 |
|
|
freq = set_freq; // collect current value
|
390 |
|
|
else {
|
391 |
|
|
int do_set_freq = (freq > 0);
|
392 |
|
|
unsigned int period = CYGNUM_HAL_RTC_PERIOD;
|
393 |
|
|
|
394 |
|
|
if ( 0 == (freq ^ -freq) ) // Then it's MIN_INT in local size
|
395 |
|
|
freq++; // just so that it will negate correctly
|
396 |
|
|
|
397 |
|
|
// Then set the timer to that fast - or pass on the enquiry
|
398 |
|
|
#ifdef HAL_CLOCK_REINITIALIZE
|
399 |
|
|
// Give the HAL enough info to do the division sum relative to
|
400 |
|
|
// the default setup, in period and TICKS_PER_SEC.
|
401 |
|
|
HAL_CLOCK_REINITIALIZE( freq, period, TICKS_PER_SEC );
|
402 |
|
|
#else
|
403 |
|
|
freq = TICKS_PER_SEC; // the only choice
|
404 |
|
|
#endif
|
405 |
|
|
if ( do_set_freq ) { // update the global variables
|
406 |
|
|
unsigned int orig = set_freq;
|
407 |
|
|
set_freq = freq;
|
408 |
|
|
set_period = period;
|
409 |
|
|
// We must "correct" sys_timer_ticks for the new scale factor.
|
410 |
|
|
sys_timer_ticks = sys_timer_ticks * set_freq / orig;
|
411 |
|
|
}
|
412 |
|
|
}
|
413 |
|
|
|
414 |
|
|
if ( previous_freq ) // Return the current value (new value)
|
415 |
|
|
*previous_freq = freq;
|
416 |
|
|
}
|
417 |
|
|
|
418 |
|
|
void sys_profile_reset( void )
|
419 |
|
|
{
|
420 |
|
|
timer_callback = NULL;
|
421 |
|
|
// Want to preserve the frequency between runs, for clever GDB users!
|
422 |
|
|
// sys_profile_frequency( TICKS_PER_SEC, NULL );
|
423 |
|
|
}
|
424 |
|
|
|
425 |
|
|
#endif // CYGSEM_REDBOOT_BSP_SYSCALLS_GPROF
|
426 |
|
|
|
427 |
|
|
//
|
428 |
|
|
// Generic syscall handler.
|
429 |
|
|
//
|
430 |
|
|
// Returns 0 if syscall number is not handled by this
|
431 |
|
|
// module, 1 otherwise. This allows applications to
|
432 |
|
|
// extend the syscall handler by using exception chaining.
|
433 |
|
|
//
|
434 |
|
|
CYG_ADDRWORD
|
435 |
|
|
__do_syscall(CYG_ADDRWORD func, // syscall function number
|
436 |
|
|
CYG_ADDRWORD arg1, CYG_ADDRWORD arg2, // up to four args.
|
437 |
|
|
CYG_ADDRWORD arg3, CYG_ADDRWORD arg4,
|
438 |
|
|
CYG_ADDRWORD *retval, CYG_ADDRWORD *sig) // syscall return value
|
439 |
|
|
{
|
440 |
|
|
int err = 0;
|
441 |
|
|
*sig = 0;
|
442 |
|
|
|
443 |
|
|
switch (func) {
|
444 |
|
|
|
445 |
|
|
case SYS_open:
|
446 |
|
|
{
|
447 |
|
|
#ifdef CYGPKG_HAL_GDB_FILEIO // File I/O over the GDB remote protocol
|
448 |
|
|
__externC int cyg_hal_gdbfileio_open( const char *name, int flags,
|
449 |
|
|
int mode, int *sig );
|
450 |
|
|
if (gdb_active)
|
451 |
|
|
err = cyg_hal_gdbfileio_open((const char *)arg1, (int)arg2, (int)arg3,
|
452 |
|
|
(int *)sig);
|
453 |
|
|
else
|
454 |
|
|
#endif
|
455 |
|
|
err = sys_open((const char *)arg1, (int)arg2, (int)arg3);
|
456 |
|
|
break;
|
457 |
|
|
}
|
458 |
|
|
case SYS_read:
|
459 |
|
|
{
|
460 |
|
|
#ifdef CYGPKG_HAL_GDB_FILEIO // File I/O over the GDB remote protocol
|
461 |
|
|
__externC int cyg_hal_gdbfileio_read( int fd, void *buf, size_t count,
|
462 |
|
|
int *sig );
|
463 |
|
|
if (gdb_active)
|
464 |
|
|
err = cyg_hal_gdbfileio_read((int)arg1, (void *)arg2, (size_t)arg3,
|
465 |
|
|
(int *)sig);
|
466 |
|
|
else
|
467 |
|
|
#endif
|
468 |
|
|
err = sys_read((int)arg1, (char *)arg2, (int)arg3);
|
469 |
|
|
break;
|
470 |
|
|
}
|
471 |
|
|
case SYS_write:
|
472 |
|
|
{
|
473 |
|
|
#ifdef CYGPKG_HAL_GDB_FILEIO // File I/O over the GDB remote protocol
|
474 |
|
|
__externC int cyg_hal_gdbfileio_write( int fd, const void *buf,
|
475 |
|
|
size_t count, int *sig );
|
476 |
|
|
if (gdb_active)
|
477 |
|
|
err = cyg_hal_gdbfileio_write((int)arg1, (const void *)arg2,
|
478 |
|
|
(size_t)arg3, (int *)sig);
|
479 |
|
|
else
|
480 |
|
|
#endif
|
481 |
|
|
err = sys_write((int)arg1, (char *)arg2, (int)arg3);
|
482 |
|
|
break;
|
483 |
|
|
}
|
484 |
|
|
case SYS_close:
|
485 |
|
|
{
|
486 |
|
|
#ifdef CYGPKG_HAL_GDB_FILEIO // File I/O over the GDB remote protocol
|
487 |
|
|
__externC int cyg_hal_gdbfileio_close( int fd, int *sig );
|
488 |
|
|
if (gdb_active)
|
489 |
|
|
err = cyg_hal_gdbfileio_close((int)arg1, (int *)sig);
|
490 |
|
|
else
|
491 |
|
|
#endif
|
492 |
|
|
err = sys_close((int)arg1);
|
493 |
|
|
break;
|
494 |
|
|
}
|
495 |
|
|
case SYS_lseek:
|
496 |
|
|
{
|
497 |
|
|
#ifdef CYGPKG_HAL_GDB_FILEIO // File I/O over the GDB remote protocol
|
498 |
|
|
__externC int cyg_hal_gdbfileio_lseek( int fd, long offset,
|
499 |
|
|
int whence, int *sig );
|
500 |
|
|
if (gdb_active)
|
501 |
|
|
err = cyg_hal_gdbfileio_lseek((int)arg1, (long)arg2, (int)arg3,
|
502 |
|
|
(int *)sig);
|
503 |
|
|
else
|
504 |
|
|
#endif
|
505 |
|
|
err = sys_lseek((int)arg1, (int)arg2, (int)arg3);
|
506 |
|
|
break;
|
507 |
|
|
}
|
508 |
|
|
case SYS_stat:
|
509 |
|
|
{
|
510 |
|
|
#ifdef CYGPKG_HAL_GDB_FILEIO // File I/O over the GDB remote protocol
|
511 |
|
|
__externC int cyg_hal_gdbfileio_stat( const char *pathname,
|
512 |
|
|
void *statbuf, int *sig );
|
513 |
|
|
if (gdb_active)
|
514 |
|
|
err = cyg_hal_gdbfileio_stat((const char *)arg1, (void *)arg2,
|
515 |
|
|
(int *)sig);
|
516 |
|
|
else
|
517 |
|
|
#endif
|
518 |
|
|
err = -NEWLIB_ENOSYS;
|
519 |
|
|
break;
|
520 |
|
|
}
|
521 |
|
|
case SYS_fstat:
|
522 |
|
|
{
|
523 |
|
|
#ifdef CYGPKG_HAL_GDB_FILEIO // File I/O over the GDB remote protocol
|
524 |
|
|
__externC int cyg_hal_gdbfileio_fstat( int fd, void *statbuf,
|
525 |
|
|
int *sig );
|
526 |
|
|
if (gdb_active)
|
527 |
|
|
err = cyg_hal_gdbfileio_fstat((int)arg1, (void *)arg2,
|
528 |
|
|
(int *)sig);
|
529 |
|
|
else
|
530 |
|
|
#endif
|
531 |
|
|
{
|
532 |
|
|
struct newlib_stat *st = (struct newlib_stat *)arg2;
|
533 |
|
|
st->st_mode = NEWLIB_S_IFCHR;
|
534 |
|
|
st->st_blksize = 4096;
|
535 |
|
|
err = 0;
|
536 |
|
|
}
|
537 |
|
|
break;
|
538 |
|
|
}
|
539 |
|
|
case SYS_rename:
|
540 |
|
|
{
|
541 |
|
|
#ifdef CYGPKG_HAL_GDB_FILEIO // File I/O over the GDB remote protocol
|
542 |
|
|
__externC int cyg_hal_gdbfileio_rename( const char *oldpath,
|
543 |
|
|
const char *newpath,
|
544 |
|
|
int *sig );
|
545 |
|
|
if (gdb_active)
|
546 |
|
|
err = cyg_hal_gdbfileio_rename((const char *)arg1, (const char *)arg2,
|
547 |
|
|
(int *)sig);
|
548 |
|
|
else
|
549 |
|
|
#endif
|
550 |
|
|
err = -NEWLIB_ENOSYS;
|
551 |
|
|
break;
|
552 |
|
|
}
|
553 |
|
|
case SYS_unlink:
|
554 |
|
|
{
|
555 |
|
|
#ifdef CYGPKG_HAL_GDB_FILEIO // File I/O over the GDB remote protocol
|
556 |
|
|
__externC int cyg_hal_gdbfileio_unlink( const char *pathname,
|
557 |
|
|
int *sig );
|
558 |
|
|
if (gdb_active)
|
559 |
|
|
err = cyg_hal_gdbfileio_unlink((const char *)arg1, (int *)sig);
|
560 |
|
|
else
|
561 |
|
|
#endif
|
562 |
|
|
err = -NEWLIB_ENOSYS;
|
563 |
|
|
break;
|
564 |
|
|
}
|
565 |
|
|
case SYS_isatty:
|
566 |
|
|
{
|
567 |
|
|
#ifdef CYGPKG_HAL_GDB_FILEIO // File I/O over the GDB remote protocol
|
568 |
|
|
__externC int cyg_hal_gdbfileio_isatty( int fd, int *sig );
|
569 |
|
|
if (gdb_active)
|
570 |
|
|
err = cyg_hal_gdbfileio_isatty((int)arg1, (int *)sig);
|
571 |
|
|
else
|
572 |
|
|
#endif
|
573 |
|
|
err = 1;
|
574 |
|
|
break;
|
575 |
|
|
}
|
576 |
|
|
case SYS_system:
|
577 |
|
|
{
|
578 |
|
|
#ifdef CYGPKG_HAL_GDB_FILEIO // File I/O over the GDB remote protocol
|
579 |
|
|
__externC int cyg_hal_gdbfileio_system( const char *command,
|
580 |
|
|
int *sig );
|
581 |
|
|
if (gdb_active)
|
582 |
|
|
err = cyg_hal_gdbfileio_system((const char *)arg1, (int *)sig);
|
583 |
|
|
else
|
584 |
|
|
#endif
|
585 |
|
|
err = -1;
|
586 |
|
|
break;
|
587 |
|
|
}
|
588 |
|
|
case SYS_gettimeofday:
|
589 |
|
|
{
|
590 |
|
|
#ifdef CYGPKG_HAL_GDB_FILEIO // File I/O over the GDB remote protocol
|
591 |
|
|
__externC int cyg_hal_gdbfileio_gettimeofday( void *tv, void *tz,
|
592 |
|
|
int *sig );
|
593 |
|
|
if (gdb_active)
|
594 |
|
|
err = cyg_hal_gdbfileio_gettimeofday((void *)arg1, (void *)arg2,
|
595 |
|
|
(int *)sig);
|
596 |
|
|
else
|
597 |
|
|
#endif
|
598 |
|
|
err = 0;
|
599 |
|
|
break;
|
600 |
|
|
}
|
601 |
|
|
case SYS_utime:
|
602 |
|
|
// FIXME. Some libglosses depend on this behavior.
|
603 |
|
|
err = sys_times((unsigned long *)arg1);
|
604 |
|
|
break;
|
605 |
|
|
|
606 |
|
|
case SYS_times:
|
607 |
|
|
err = sys_times((unsigned long *)arg1);
|
608 |
|
|
break;
|
609 |
|
|
|
610 |
|
|
case SYS_meminfo:
|
611 |
|
|
err = 1;
|
612 |
|
|
*(unsigned long *)arg1 = (unsigned long)(ram_end-ram_start);
|
613 |
|
|
*(unsigned long *)arg2 = (unsigned long)ram_end;
|
614 |
|
|
break;
|
615 |
|
|
#ifdef CYGSEM_REDBOOT_BSP_SYSCALLS_GPROF
|
616 |
|
|
case SYS_timer_call_back:
|
617 |
|
|
sys_profile_call_back( (char *)arg1, (char **)arg2 );
|
618 |
|
|
break;
|
619 |
|
|
|
620 |
|
|
case SYS_timer_frequency:
|
621 |
|
|
sys_profile_frequency( (int)arg1, (unsigned int *)arg2 );
|
622 |
|
|
break;
|
623 |
|
|
|
624 |
|
|
case SYS_timer_reset:
|
625 |
|
|
sys_profile_reset();
|
626 |
|
|
break;
|
627 |
|
|
|
628 |
|
|
#endif // CYGSEM_REDBOOT_BSP_SYSCALLS_GPROF
|
629 |
|
|
case __GET_SHARED:
|
630 |
|
|
*(__shared_t **)arg1 = &__shared_data;
|
631 |
|
|
break;
|
632 |
|
|
|
633 |
|
|
case SYS_exit:
|
634 |
|
|
if (gdb_active) {
|
635 |
|
|
*sig = SIGTRAP;
|
636 |
|
|
err = func;
|
637 |
|
|
} else {
|
638 |
|
|
CYGACC_CALL_IF_MONITOR_RETURN(arg1);
|
639 |
|
|
// never returns
|
640 |
|
|
}
|
641 |
|
|
break;
|
642 |
|
|
|
643 |
|
|
default:
|
644 |
|
|
return 0;
|
645 |
|
|
}
|
646 |
|
|
|
647 |
|
|
*retval = err;
|
648 |
|
|
return 1;
|
649 |
|
|
}
|
650 |
|
|
|
651 |
|
|
#endif
|