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annotate packages/redboot/current/src/syscall.c @ 556:f2b5df359050

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Support return to redboot from go
author msalter
date Fri, 31 Jan 2003 16:45:57 +0000
parents 59d0679e58c3
children 609c8b1447ee
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 /*==========================================================================
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2 //
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3 // syscall.c
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4 //
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5 // Redboot syscall handling for GNUPro bsp support
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6 //
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7 //==========================================================================
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8 //####ECOSGPLCOPYRIGHTBEGIN####
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9 // -------------------------------------------
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10 // This file is part of eCos, the Embedded Configurable Operating System.
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11 // Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003 Red Hat, Inc.
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12 //
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13 // eCos is free software; you can redistribute it and/or modify it under
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14 // the terms of the GNU General Public License as published by the Free
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15 // Software Foundation; either version 2 or (at your option) any later version.
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16 //
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17 // eCos is distributed in the hope that it will be useful, but WITHOUT ANY
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18 // WARRANTY; without even the implied warranty of MERCHANTABILITY or
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19 // FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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20 // for more details.
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21 //
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22 // You should have received a copy of the GNU General Public License along
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23 // with eCos; if not, write to the Free Software Foundation, Inc.,
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24 // 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
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25 //
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26 // As a special exception, if other files instantiate templates or use macros
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27 // or inline functions from this file, or you compile this file and link it
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28 // with other works to produce a work based on this file, this file does not
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29 // by itself cause the resulting work to be covered by the GNU General Public
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30 // License. However the source code for this file must still be made available
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31 // in accordance with section (3) of the GNU General Public License.
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32 //
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33 // This exception does not invalidate any other reasons why a work based on
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34 // this file might be covered by the GNU General Public License.
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35 //
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36 // Alternative licenses for eCos may be arranged by contacting Red Hat, Inc.
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37 // at http://sources.redhat.com/ecos/ecos-license/
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38 // -------------------------------------------
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39 //####ECOSGPLCOPYRIGHTEND####
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40 //==========================================================================
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41 //#####DESCRIPTIONBEGIN####
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42 //
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43 // Author(s): msalter
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44 // Contributors: msalter
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45 // Date: 1999-02-20
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46 // Purpose: Temporary support for gnupro bsp
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47 //
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48 //####DESCRIPTIONEND####
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49 //
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50 //=========================================================================*/
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51
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52 #include <redboot.h>
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53 #include <cyg/hal/hal_intr.h>
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54 #include <cyg/hal/drv_api.h>
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55 #include <cyg/hal/hal_stub.h>
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56
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57 #ifdef CYGSEM_REDBOOT_BSP_SYSCALLS
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58
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59 #define NEWLIB_EIO 5 /* I/O error */
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60 #define NEWLIB_ENOSYS 88 /* Syscall not supported */
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61
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62 /*
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63 * Clients of this BSP will need to have access to BSP functions and
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64 * data structures. Because, the client and the BSP may not be linked
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65 * together, a structure of vectors is used to gain this access. A
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66 * pointer to this structure can be gotten via a syscall. This syscall
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67 * is made automatically from within the crt0.o file.
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68 */
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69 typedef struct {
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70 int version; /* version number for future expansion */
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71 const void **__ictrl_table;
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72 void **__exc_table;
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73 void *__dbg_vector;
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74 void *__kill_vector;
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75 void *__console_procs;
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76 void *__debug_procs;
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77 void (*__flush_dcache)(void *__p, int __nbytes);
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78 void (*__flush_icache)(void *__p, int __nbytes);
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79 void *__cpu_data;
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80 void *__board_data;
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81 void *__sysinfo;
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82 int (*__set_debug_comm)(int __comm_id);
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83 int (*__set_console_comm)(int __comm_id);
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84 int (*__set_serial_baud)(int __comm_id, int baud);
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85 void *__dbg_data;
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86 void (*__reset)(void);
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87 int __console_interrupt_flag;
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88 } __shared_t;
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89
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90 static __shared_t __shared_data = { 2 };
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91
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92 // this is used by newlib's mode_t so we should match it
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93 #ifdef __GNUC__
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94 #define _ST_INT32 __attribute__ ((__mode__ (__SI__)))
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95 #else
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96 #define _ST_INT32
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97 #endif
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98 typedef unsigned int newlib_mode_t _ST_INT32;
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99 typedef short newlib_dev_t;
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100 typedef unsigned short newlib_ino_t;
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101 typedef unsigned short newlib_nlink_t;
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102 typedef long newlib_off_t;
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103 typedef unsigned short newlib_uid_t;
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104 typedef unsigned short newlib_gid_t;
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105 typedef long newlib_time_t;
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106 typedef long newlib_long_t;
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107
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108 struct newlib_stat
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109 {
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110 newlib_dev_t st_dev;
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111 newlib_ino_t st_ino;
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112 newlib_mode_t st_mode;
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113 newlib_nlink_t st_nlink;
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114 newlib_uid_t st_uid;
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115 newlib_gid_t st_gid;
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116 newlib_dev_t st_rdev;
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117 newlib_off_t st_size;
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118 // We assume we've been compiled with the same flags as newlib here
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119 #if defined(__svr4__) && !defined(__PPC__) && !defined(__sun__)
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120 newlib_time_t st_atime;
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121 newlib_time_t st_mtime;
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122 newlib_time_t st_ctime;
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123 #else
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124 newlib_time_t st_atime;
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125 newlib_long_t st_spare1;
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126 newlib_time_t st_mtime;
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127 newlib_long_t st_spare2;
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128 newlib_time_t st_ctime;
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129 newlib_long_t st_spare3;
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130 newlib_long_t st_blksize;
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131 newlib_long_t st_blocks;
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132 newlib_long_t st_spare4[2];
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133 #endif
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134 };
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135 #define NEWLIB_S_IFCHR 0020000 // character special file
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136
136
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137 static inline char __getc(void)
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138 {
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139 char c;
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140 hal_virtual_comm_table_t* __chan = CYGACC_CALL_IF_CONSOLE_PROCS();
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141
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142 if (__chan)
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143 c = CYGACC_COMM_IF_GETC(*__chan);
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144 else {
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145 __chan = CYGACC_CALL_IF_DEBUG_PROCS();
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146 c = CYGACC_COMM_IF_GETC(*__chan);
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147 }
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148 return c;
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149 }
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150
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151 static inline void __putc(char c)
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152 {
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153 hal_virtual_comm_table_t* __chan = CYGACC_CALL_IF_CONSOLE_PROCS();
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154 if (__chan)
182
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155 CYGACC_COMM_IF_PUTC(*__chan, c);
136
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156 else {
182
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157 __chan = CYGACC_CALL_IF_DEBUG_PROCS();
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158 CYGACC_COMM_IF_PUTC(*__chan, c);
136
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159 }
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160 }
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161
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162
208
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163 static inline void __flush(void)
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164 {
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165 hal_virtual_comm_table_t* __chan = CYGACC_CALL_IF_CONSOLE_PROCS();
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166
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167 if (__chan == NULL)
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168 __chan = CYGACC_CALL_IF_DEBUG_PROCS();
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169
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170 CYGACC_COMM_IF_CONTROL(*__chan, __COMMCTL_FLUSH_OUTPUT);
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171 }
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172
182
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173 // Timer support
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174
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175 static cyg_handle_t sys_timer_handle;
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176 static cyg_interrupt sys_timer_interrupt;
208
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177 static cyg_uint64 sys_timer_ticks = 0;
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178
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179 #ifdef CYGSEM_REDBOOT_BSP_SYSCALLS_GPROF
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180
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181 static unsigned int set_period = CYGNUM_HAL_RTC_PERIOD; // The default
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182
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183 typedef void *callback_func( char *pc, char *sp );
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184 static callback_func *timer_callback = 0;
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185
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186 #endif // CYGSEM_REDBOOT_BSP_SYSCALLS_GPROF
182
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187
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188 static void
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189 sys_timer_dsr(cyg_vector_t vector, cyg_ucount32 count, cyg_addrword_t data)
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190 {
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191 // do nothing
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192 }
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193
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194
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195 static cyg_uint32
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196 sys_timer_isr(cyg_vector_t vector, cyg_addrword_t data)
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197 {
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198 ++sys_timer_ticks;
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199
208
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200 #ifdef CYGSEM_REDBOOT_BSP_SYSCALLS_GPROF
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201 HAL_CLOCK_RESET(CYGNUM_HAL_INTERRUPT_RTC, set_period);
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202 #else
182
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203 HAL_CLOCK_RESET(CYGNUM_HAL_INTERRUPT_RTC, CYGNUM_HAL_RTC_PERIOD);
208
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204 #endif // CYGSEM_REDBOOT_BSP_SYSCALLS_GPROF
182
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205
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206 cyg_drv_interrupt_acknowledge(CYGNUM_HAL_INTERRUPT_RTC);
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207
208
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208 #ifdef CYGSEM_REDBOOT_BSP_SYSCALLS_GPROF
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209 if ( timer_callback ) {
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210 char *intrpc = (char *)0;
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211 char *intrsp = (char *)0;
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212
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213 // There may be a number of ways to get the PC and (optional) SP
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214 // information out of the HAL. Hence this is conditioned. In some
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215 // configurations, a register-set pointer is available as
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216 // (invisible) argument 3 to this ISR call.
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217
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218 #ifdef HAL_GET_PROFILE_INFO
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219 HAL_GET_PROFILE_INFO( intrpc, intrsp );
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220 #endif // HAL_GET_PROFILE_INFO available
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221
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222 CYGARC_HAL_SAVE_GP();
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223 timer_callback( intrpc, intrsp );
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224 CYGARC_HAL_RESTORE_GP();
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225 }
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226 #endif // CYGSEM_REDBOOT_BSP_SYSCALLS_GPROF
556
f2b5df359050 Support return to redboot from go
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227 return CYG_ISR_HANDLED;
182
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228 }
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229
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230
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231 static void sys_timer_init(void)
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232 {
208
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233 #ifdef CYGSEM_REDBOOT_BSP_SYSCALLS_GPROF
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234 HAL_CLOCK_INITIALIZE(set_period);
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235 #else
182
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236 HAL_CLOCK_INITIALIZE(CYGNUM_HAL_RTC_PERIOD);
208
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237 #endif // CYGSEM_REDBOOT_BSP_SYSCALLS_GPROF
182
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238
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239 cyg_drv_interrupt_create(
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240 CYGNUM_HAL_INTERRUPT_RTC,
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241 0, // Priority - unused
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242 (CYG_ADDRWORD)0, // Data item passed to ISR & DSR
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243 sys_timer_isr, // ISR
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244 sys_timer_dsr, // DSR
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245 &sys_timer_handle, // handle to intr obj
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246 &sys_timer_interrupt ); // space for int obj
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247
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248 cyg_drv_interrupt_attach(sys_timer_handle);
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249
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250 cyg_drv_interrupt_unmask(CYGNUM_HAL_INTERRUPT_RTC);
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251 }
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252
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253
136
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254 //
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255 // read -- read bytes from the serial port. Ignore fd, since
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256 // we only have stdin.
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257 static int
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258 sys_read(int fd, char *buf, int nbytes)
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259 {
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260 int i = 0;
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261
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262 for (i = 0; i < nbytes; i++) {
182
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263 *(buf + i) = __getc();
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264 if ((*(buf + i) == '\n') || (*(buf + i) == '\r')) {
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265 (*(buf + i + 1)) = 0;
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266 break;
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267 }
136
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268 }
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269 return (i);
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270 }
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271
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272
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273 //
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274 // write -- write bytes to the serial port. Ignore fd, since
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275 // stdout and stderr are the same. Since we have no filesystem,
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276 // open will only return an error.
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277 //
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278 static int
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279 sys_write(int fd, char *buf, int nbytes)
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280 {
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281 #define WBUFSIZE 256
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282 int tosend;
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283
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284 tosend = nbytes;
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285
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286 while (tosend > 0) {
182
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287 if (*buf == '\n')
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288 __putc('\r');
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289 __putc(*buf++);
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290 tosend--;
136
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291 }
208
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292 __flush();
136
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293
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294 return (nbytes);
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295 }
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296
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297
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298 //
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299 // open -- open a file descriptor. We don't have a filesystem, so
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300 // we return an error.
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301 //
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302 static int
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303 sys_open (const char *buf, int flags, int mode)
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304 {
208
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305 return (-NEWLIB_EIO);
136
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306 }
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307
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308 //
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309 // close -- We don't need to do anything, but pretend we did.
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310 //
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311 static int
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312 sys_close(int fd)
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313 {
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314 return (0);
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315 }
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316
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317
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318 //
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319 // lseek -- Since a serial port is non-seekable, we return an error.
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320 //
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321 static int
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322 sys_lseek(int fd, int offset, int whence)
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323 {
208
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324 return (-NEWLIB_EIO);
136
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325 }
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326
208
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327
182
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328 #define NS_PER_TICK (CYGNUM_HAL_RTC_NUMERATOR/CYGNUM_HAL_RTC_DENOMINATOR)
208
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329 #define TICKS_PER_SEC (1000000000ULL / NS_PER_TICK)
182
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330
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331 // This needs to match newlib HZ which is normally 60.
208
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332 #define HZ (60ULL)
136
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333
208
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334 #ifdef CYGSEM_REDBOOT_BSP_SYSCALLS_GPROF
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335 static unsigned int set_freq = TICKS_PER_SEC; // The default
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336 #endif // CYGSEM_REDBOOT_BSP_SYSCALLS_GPROF
136
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337 static int
191
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338 sys_times(unsigned long *p)
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339 {
182
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340 static int inited = 0;
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341
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342 if (!inited) {
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343 inited = 1;
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344 sys_timer_init();
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345 }
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346
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347 /* target clock runs at CLOCKS_PER_SEC. Convert to HZ */
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348 if (p)
208
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349 #ifdef CYGSEM_REDBOOT_BSP_SYSCALLS_GPROF
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350 *p = (sys_timer_ticks * HZ) / (cyg_uint64)set_freq;
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351 #else
182
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352 *p = (sys_timer_ticks * HZ) / TICKS_PER_SEC;
208
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353 #endif // CYGSEM_REDBOOT_BSP_SYSCALLS_GPROF
182
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354
136
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355 return 0;
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356 }
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357
208
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358 #ifdef CYGSEM_REDBOOT_BSP_SYSCALLS_GPROF
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359
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360 static void sys_profile_call_back( char *func, char **previous_call_back )
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361 {
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362 if ( previous_call_back )
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363 *previous_call_back = (char *)timer_callback;
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364
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365 timer_callback = (callback_func *)func;
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366
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367 // Ensure the timer is started
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368 (void)sys_times( (unsigned long *)0 );
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369 }
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370
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371 static void sys_profile_frequency( int freq, int *previous_freq )
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372 {
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373 // Requested HZ:
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374 // 0 => tell me the current value (no change, IMPLEMENTED HERE)
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375 // - 1 => tell me the slowest (no change)
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376 // - 2 => tell me the default (no change, IMPLEMENTED HERE)
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377 // -nnn => tell me what you would choose for nnn (no change)
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378 // MIN_INT => tell me the fastest (no change)
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379 //
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380 // 1 => tell me the slowest (sets the clock)
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381 // MAX_INT => tell me the fastest (sets the clock)
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382
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383 // Ensure the timer is started
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384 (void)sys_times( (unsigned long *)0 );
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385
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386 if ( -2 == freq )
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387 freq = TICKS_PER_SEC; // default value
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388 else if ( 0 == freq )
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389 freq = set_freq; // collect current value
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390 else {
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391 int do_set_freq = (freq > 0);
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392 unsigned int period = CYGNUM_HAL_RTC_PERIOD;
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393
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394 if ( 0 == (freq ^ -freq) ) // Then it's MIN_INT in local size
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395 freq++; // just so that it will negate correctly
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396
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397 // Then set the timer to that fast - or pass on the enquiry
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398 #ifdef HAL_CLOCK_REINITIALIZE
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399 // Give the HAL enough info to do the division sum relative to
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400 // the default setup, in period and TICKS_PER_SEC.
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401 HAL_CLOCK_REINITIALIZE( freq, period, TICKS_PER_SEC );
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402 #else
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403 freq = TICKS_PER_SEC; // the only choice
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404 #endif
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405 if ( do_set_freq ) { // update the global variables
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406 unsigned int orig = set_freq;
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407 set_freq = freq;
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408 set_period = period;
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409 // We must "correct" sys_timer_ticks for the new scale factor.
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410 sys_timer_ticks = sys_timer_ticks * set_freq / orig;
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411 }
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412 }
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413
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414 if ( previous_freq ) // Return the current value (new value)
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415 *previous_freq = freq;
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416 }
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417
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418 void sys_profile_reset( void )
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419 {
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420 timer_callback = NULL;
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421 // Want to preserve the frequency between runs, for clever GDB users!
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422 // sys_profile_frequency( TICKS_PER_SEC, NULL );
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST
jlarmour
parents: 202
diff changeset
423 }
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST
jlarmour
parents: 202
diff changeset
424
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST
jlarmour
parents: 202
diff changeset
425 #endif // CYGSEM_REDBOOT_BSP_SYSCALLS_GPROF
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jlarmour
parents: 202
diff changeset
426
136
a9ac27ec7abc Merge from eCos master repository on 2000-11-17-18:24:25-GMT
jlarmour
parents:
diff changeset
427 //
a9ac27ec7abc Merge from eCos master repository on 2000-11-17-18:24:25-GMT
jlarmour
parents:
diff changeset
428 // Generic syscall handler.
a9ac27ec7abc Merge from eCos master repository on 2000-11-17-18:24:25-GMT
jlarmour
parents:
diff changeset
429 //
a9ac27ec7abc Merge from eCos master repository on 2000-11-17-18:24:25-GMT
jlarmour
parents:
diff changeset
430 // Returns 0 if syscall number is not handled by this
a9ac27ec7abc Merge from eCos master repository on 2000-11-17-18:24:25-GMT
jlarmour
parents:
diff changeset
431 // module, 1 otherwise. This allows applications to
a9ac27ec7abc Merge from eCos master repository on 2000-11-17-18:24:25-GMT
jlarmour
parents:
diff changeset
432 // extend the syscall handler by using exception chaining.
a9ac27ec7abc Merge from eCos master repository on 2000-11-17-18:24:25-GMT
jlarmour
parents:
diff changeset
433 //
151
25e238959bae Merge from eCos master repository on 2001-02-12-23:44:24-GMT
jlarmour
parents: 136
diff changeset
434 CYG_ADDRWORD
182
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents: 151
diff changeset
435 __do_syscall(CYG_ADDRWORD func, // syscall function number
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents: 151
diff changeset
436 CYG_ADDRWORD arg1, CYG_ADDRWORD arg2, // up to four args.
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents: 151
diff changeset
437 CYG_ADDRWORD arg3, CYG_ADDRWORD arg4,
208
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST
jlarmour
parents: 202
diff changeset
438 CYG_ADDRWORD *retval, CYG_ADDRWORD *sig) // syscall return value
136
a9ac27ec7abc Merge from eCos master repository on 2000-11-17-18:24:25-GMT
jlarmour
parents:
diff changeset
439 {
a9ac27ec7abc Merge from eCos master repository on 2000-11-17-18:24:25-GMT
jlarmour
parents:
diff changeset
440 int err = 0;
208
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST
jlarmour
parents: 202
diff changeset
441 *sig = 0;
136
a9ac27ec7abc Merge from eCos master repository on 2000-11-17-18:24:25-GMT
jlarmour
parents:
diff changeset
442
a9ac27ec7abc Merge from eCos master repository on 2000-11-17-18:24:25-GMT
jlarmour
parents:
diff changeset
443 switch (func) {
a9ac27ec7abc Merge from eCos master repository on 2000-11-17-18:24:25-GMT
jlarmour
parents:
diff changeset
444
208
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jlarmour
parents: 202
diff changeset
445 case SYS_open:
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jlarmour
parents: 202
diff changeset
446 {
309
59d0679e58c3 fileio tweak
msalter
parents: 210
diff changeset
447 #ifdef CYGPKG_HAL_GDB_FILEIO // File I/O over the GDB remote protocol
208
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST
jlarmour
parents: 202
diff changeset
448 __externC int cyg_hal_gdbfileio_open( const char *name, int flags,
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST
jlarmour
parents: 202
diff changeset
449 int mode, int *sig );
309
59d0679e58c3 fileio tweak
msalter
parents: 210
diff changeset
450 if (gdb_active)
59d0679e58c3 fileio tweak
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parents: 210
diff changeset
451 err = cyg_hal_gdbfileio_open((const char *)arg1, (int)arg2, (int)arg3,
59d0679e58c3 fileio tweak
msalter
parents: 210
diff changeset
452 (int *)sig);
59d0679e58c3 fileio tweak
msalter
parents: 210
diff changeset
453 else
59d0679e58c3 fileio tweak
msalter
parents: 210
diff changeset
454 #endif
59d0679e58c3 fileio tweak
msalter
parents: 210
diff changeset
455 err = sys_open((const char *)arg1, (int)arg2, (int)arg3);
208
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST
jlarmour
parents: 202
diff changeset
456 break;
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST
jlarmour
parents: 202
diff changeset
457 }
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST
jlarmour
parents: 202
diff changeset
458 case SYS_read:
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST
jlarmour
parents: 202
diff changeset
459 {
309
59d0679e58c3 fileio tweak
msalter
parents: 210
diff changeset
460 #ifdef CYGPKG_HAL_GDB_FILEIO // File I/O over the GDB remote protocol
208
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST
jlarmour
parents: 202
diff changeset
461 __externC int cyg_hal_gdbfileio_read( int fd, void *buf, size_t count,
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST
jlarmour
parents: 202
diff changeset
462 int *sig );
309
59d0679e58c3 fileio tweak
msalter
parents: 210
diff changeset
463 if (gdb_active)
59d0679e58c3 fileio tweak
msalter
parents: 210
diff changeset
464 err = cyg_hal_gdbfileio_read((int)arg1, (void *)arg2, (size_t)arg3,
59d0679e58c3 fileio tweak
msalter
parents: 210
diff changeset
465 (int *)sig);
59d0679e58c3 fileio tweak
msalter
parents: 210
diff changeset
466 else
59d0679e58c3 fileio tweak
msalter
parents: 210
diff changeset
467 #endif
59d0679e58c3 fileio tweak
msalter
parents: 210
diff changeset
468 err = sys_read((int)arg1, (char *)arg2, (int)arg3);
208
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST
jlarmour
parents: 202
diff changeset
469 break;
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST
jlarmour
parents: 202
diff changeset
470 }
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST
jlarmour
parents: 202
diff changeset
471 case SYS_write:
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST
jlarmour
parents: 202
diff changeset
472 {
309
59d0679e58c3 fileio tweak
msalter
parents: 210
diff changeset
473 #ifdef CYGPKG_HAL_GDB_FILEIO // File I/O over the GDB remote protocol
208
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST
jlarmour
parents: 202
diff changeset
474 __externC int cyg_hal_gdbfileio_write( int fd, const void *buf,
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST
jlarmour
parents: 202
diff changeset
475 size_t count, int *sig );
309
59d0679e58c3 fileio tweak
msalter
parents: 210
diff changeset
476 if (gdb_active)
59d0679e58c3 fileio tweak
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parents: 210
diff changeset
477 err = cyg_hal_gdbfileio_write((int)arg1, (const void *)arg2,
59d0679e58c3 fileio tweak
msalter
parents: 210
diff changeset
478 (size_t)arg3, (int *)sig);
59d0679e58c3 fileio tweak
msalter
parents: 210
diff changeset
479 else
59d0679e58c3 fileio tweak
msalter
parents: 210
diff changeset
480 #endif
59d0679e58c3 fileio tweak
msalter
parents: 210
diff changeset
481 err = sys_write((int)arg1, (char *)arg2, (int)arg3);
208
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST
jlarmour
parents: 202
diff changeset
482 break;
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST
jlarmour
parents: 202
diff changeset
483 }
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST
jlarmour
parents: 202
diff changeset
484 case SYS_close:
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST
jlarmour
parents: 202
diff changeset
485 {
309
59d0679e58c3 fileio tweak
msalter
parents: 210
diff changeset
486 #ifdef CYGPKG_HAL_GDB_FILEIO // File I/O over the GDB remote protocol
208
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST
jlarmour
parents: 202
diff changeset
487 __externC int cyg_hal_gdbfileio_close( int fd, int *sig );
309
59d0679e58c3 fileio tweak
msalter
parents: 210
diff changeset
488 if (gdb_active)
59d0679e58c3 fileio tweak
msalter
parents: 210
diff changeset
489 err = cyg_hal_gdbfileio_close((int)arg1, (int *)sig);
59d0679e58c3 fileio tweak
msalter
parents: 210
diff changeset
490 else
59d0679e58c3 fileio tweak
msalter
parents: 210
diff changeset
491 #endif
59d0679e58c3 fileio tweak
msalter
parents: 210
diff changeset
492 err = sys_close((int)arg1);
208
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST
jlarmour
parents: 202
diff changeset
493 break;
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST
jlarmour
parents: 202
diff changeset
494 }
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST
jlarmour
parents: 202
diff changeset
495 case SYS_lseek:
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST
jlarmour
parents: 202
diff changeset
496 {
309
59d0679e58c3 fileio tweak
msalter
parents: 210
diff changeset
497 #ifdef CYGPKG_HAL_GDB_FILEIO // File I/O over the GDB remote protocol
208
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST
jlarmour
parents: 202
diff changeset
498 __externC int cyg_hal_gdbfileio_lseek( int fd, long offset,
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST
jlarmour
parents: 202
diff changeset
499 int whence, int *sig );
309
59d0679e58c3 fileio tweak
msalter
parents: 210
diff changeset
500 if (gdb_active)
59d0679e58c3 fileio tweak
msalter
parents: 210
diff changeset
501 err = cyg_hal_gdbfileio_lseek((int)arg1, (long)arg2, (int)arg3,
59d0679e58c3 fileio tweak
msalter
parents: 210
diff changeset
502 (int *)sig);
59d0679e58c3 fileio tweak
msalter
parents: 210
diff changeset
503 else
59d0679e58c3 fileio tweak
msalter
parents: 210
diff changeset
504 #endif
59d0679e58c3 fileio tweak
msalter
parents: 210
diff changeset
505 err = sys_lseek((int)arg1, (int)arg2, (int)arg3);
208
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST
jlarmour
parents: 202
diff changeset
506 break;
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST
jlarmour
parents: 202
diff changeset
507 }
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST
jlarmour
parents: 202
diff changeset
508 case SYS_stat:
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST
jlarmour
parents: 202
diff changeset
509 {
309
59d0679e58c3 fileio tweak
msalter
parents: 210
diff changeset
510 #ifdef CYGPKG_HAL_GDB_FILEIO // File I/O over the GDB remote protocol
208
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST
jlarmour
parents: 202
diff changeset
511 __externC int cyg_hal_gdbfileio_stat( const char *pathname,
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST
jlarmour
parents: 202
diff changeset
512 void *statbuf, int *sig );
309
59d0679e58c3 fileio tweak
msalter
parents: 210
diff changeset
513 if (gdb_active)
59d0679e58c3 fileio tweak
msalter
parents: 210
diff changeset
514 err = cyg_hal_gdbfileio_stat((const char *)arg1, (void *)arg2,
59d0679e58c3 fileio tweak
msalter
parents: 210
diff changeset
515 (int *)sig);
59d0679e58c3 fileio tweak
msalter
parents: 210
diff changeset
516 else
59d0679e58c3 fileio tweak
msalter
parents: 210
diff changeset
517 #endif
59d0679e58c3 fileio tweak
msalter
parents: 210
diff changeset
518 err = -NEWLIB_ENOSYS;
208
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST
jlarmour
parents: 202
diff changeset
519 break;
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST
jlarmour
parents: 202
diff changeset
520 }
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST
jlarmour
parents: 202
diff changeset
521 case SYS_fstat:
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST
jlarmour
parents: 202
diff changeset
522 {
309
59d0679e58c3 fileio tweak
msalter
parents: 210
diff changeset
523 #ifdef CYGPKG_HAL_GDB_FILEIO // File I/O over the GDB remote protocol
208
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST
jlarmour
parents: 202
diff changeset
524 __externC int cyg_hal_gdbfileio_fstat( int fd, void *statbuf,
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST
jlarmour
parents: 202
diff changeset
525 int *sig );
309
59d0679e58c3 fileio tweak
msalter
parents: 210
diff changeset
526 if (gdb_active)
59d0679e58c3 fileio tweak
msalter
parents: 210
diff changeset
527 err = cyg_hal_gdbfileio_fstat((int)arg1, (void *)arg2,
59d0679e58c3 fileio tweak
msalter
parents: 210
diff changeset
528 (int *)sig);
59d0679e58c3 fileio tweak
msalter
parents: 210
diff changeset
529 else
59d0679e58c3 fileio tweak
msalter
parents: 210
diff changeset
530 #endif
59d0679e58c3 fileio tweak
msalter
parents: 210
diff changeset
531 {
59d0679e58c3 fileio tweak
msalter
parents: 210
diff changeset
532 struct newlib_stat *st = (struct newlib_stat *)arg2;
59d0679e58c3 fileio tweak
msalter
parents: 210
diff changeset
533 st->st_mode = NEWLIB_S_IFCHR;
59d0679e58c3 fileio tweak
msalter
parents: 210
diff changeset
534 st->st_blksize = 4096;
59d0679e58c3 fileio tweak
msalter
parents: 210
diff changeset
535 err = 0;
59d0679e58c3 fileio tweak
msalter
parents: 210
diff changeset
536 }
208
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST
jlarmour
parents: 202
diff changeset
537 break;
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST
jlarmour
parents: 202
diff changeset
538 }
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST
jlarmour
parents: 202
diff changeset
539 case SYS_rename:
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST
jlarmour
parents: 202
diff changeset
540 {
309
59d0679e58c3 fileio tweak
msalter
parents: 210
diff changeset
541 #ifdef CYGPKG_HAL_GDB_FILEIO // File I/O over the GDB remote protocol
208
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST
jlarmour
parents: 202
diff changeset
542 __externC int cyg_hal_gdbfileio_rename( const char *oldpath,
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST
jlarmour
parents: 202
diff changeset
543 const char *newpath,
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST
jlarmour
parents: 202
diff changeset
544 int *sig );
309
59d0679e58c3 fileio tweak
msalter
parents: 210
diff changeset
545 if (gdb_active)
59d0679e58c3 fileio tweak
msalter
parents: 210
diff changeset
546 err = cyg_hal_gdbfileio_rename((const char *)arg1, (const char *)arg2,
59d0679e58c3 fileio tweak
msalter
parents: 210
diff changeset
547 (int *)sig);
59d0679e58c3 fileio tweak
msalter
parents: 210
diff changeset
548 else
59d0679e58c3 fileio tweak
msalter
parents: 210
diff changeset
549 #endif
59d0679e58c3 fileio tweak
msalter
parents: 210
diff changeset
550 err = -NEWLIB_ENOSYS;
208
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST
jlarmour
parents: 202
diff changeset
551 break;
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST
jlarmour
parents: 202
diff changeset
552 }
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST
jlarmour
parents: 202
diff changeset
553 case SYS_unlink:
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST
jlarmour
parents: 202
diff changeset
554 {
309
59d0679e58c3 fileio tweak
msalter
parents: 210
diff changeset
555 #ifdef CYGPKG_HAL_GDB_FILEIO // File I/O over the GDB remote protocol
208
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST
jlarmour
parents: 202
diff changeset
556 __externC int cyg_hal_gdbfileio_unlink( const char *pathname,
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST
jlarmour
parents: 202
diff changeset
557 int *sig );
309
59d0679e58c3 fileio tweak
msalter
parents: 210
diff changeset
558 if (gdb_active)
59d0679e58c3 fileio tweak
msalter
parents: 210
diff changeset
559 err = cyg_hal_gdbfileio_unlink((const char *)arg1, (int *)sig);
59d0679e58c3 fileio tweak
msalter
parents: 210
diff changeset
560 else
59d0679e58c3 fileio tweak
msalter
parents: 210
diff changeset
561 #endif
59d0679e58c3 fileio tweak
msalter
parents: 210
diff changeset
562 err = -NEWLIB_ENOSYS;
208
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST
jlarmour
parents: 202
diff changeset
563 break;
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST
jlarmour
parents: 202
diff changeset
564 }
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST
jlarmour
parents: 202
diff changeset
565 case SYS_isatty:
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST
jlarmour
parents: 202
diff changeset
566 {
309
59d0679e58c3 fileio tweak
msalter
parents: 210
diff changeset
567 #ifdef CYGPKG_HAL_GDB_FILEIO // File I/O over the GDB remote protocol
208
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST
jlarmour
parents: 202
diff changeset
568 __externC int cyg_hal_gdbfileio_isatty( int fd, int *sig );
309
59d0679e58c3 fileio tweak
msalter
parents: 210
diff changeset
569 if (gdb_active)
59d0679e58c3 fileio tweak
msalter
parents: 210
diff changeset
570 err = cyg_hal_gdbfileio_isatty((int)arg1, (int *)sig);
59d0679e58c3 fileio tweak
msalter
parents: 210
diff changeset
571 else
59d0679e58c3 fileio tweak
msalter
parents: 210
diff changeset
572 #endif
59d0679e58c3 fileio tweak
msalter
parents: 210
diff changeset
573 err = 1;
208
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST
jlarmour
parents: 202
diff changeset
574 break;
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST
jlarmour
parents: 202
diff changeset
575 }
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST
jlarmour
parents: 202
diff changeset
576 case SYS_system:
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST
jlarmour
parents: 202
diff changeset
577 {
309
59d0679e58c3 fileio tweak
msalter
parents: 210
diff changeset
578 #ifdef CYGPKG_HAL_GDB_FILEIO // File I/O over the GDB remote protocol
208
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST
jlarmour
parents: 202
diff changeset
579 __externC int cyg_hal_gdbfileio_system( const char *command,
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST
jlarmour
parents: 202
diff changeset
580 int *sig );
309
59d0679e58c3 fileio tweak
msalter
parents: 210
diff changeset
581 if (gdb_active)
59d0679e58c3 fileio tweak
msalter
parents: 210
diff changeset
582 err = cyg_hal_gdbfileio_system((const char *)arg1, (int *)sig);
59d0679e58c3 fileio tweak
msalter
parents: 210
diff changeset
583 else
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584 #endif
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585 err = -1;
208
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586 break;
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587 }
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588 case SYS_gettimeofday:
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589 {
309
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590 #ifdef CYGPKG_HAL_GDB_FILEIO // File I/O over the GDB remote protocol
208
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591 __externC int cyg_hal_gdbfileio_gettimeofday( void *tv, void *tz,
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592 int *sig );
309
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593 if (gdb_active)
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594 err = cyg_hal_gdbfileio_gettimeofday((void *)arg1, (void *)arg2,
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595 (int *)sig);
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596 else
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597 #endif
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598 err = 0;
208
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599 break;
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600 }
136
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601 case SYS_utime:
191
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602 // FIXME. Some libglosses depend on this behavior.
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603 err = sys_times((unsigned long *)arg1);
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604 break;
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605
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606 case SYS_times:
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607 err = sys_times((unsigned long *)arg1);
182
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608 break;
136
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parents:
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609
151
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610 case SYS_meminfo:
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611 err = 1;
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612 *(unsigned long *)arg1 = (unsigned long)(ram_end-ram_start);
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613 *(unsigned long *)arg2 = (unsigned long)ram_end;
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614 break;
208
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diff changeset
615 #ifdef CYGSEM_REDBOOT_BSP_SYSCALLS_GPROF
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616 case SYS_timer_call_back:
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617 sys_profile_call_back( (char *)arg1, (char **)arg2 );
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618 break;
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619
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620 case SYS_timer_frequency:
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621 sys_profile_frequency( (int)arg1, (unsigned int *)arg2 );
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622 break;
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623
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624 case SYS_timer_reset:
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625 sys_profile_reset();
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626 break;
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627
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628 #endif // CYGSEM_REDBOOT_BSP_SYSCALLS_GPROF
136
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629 case __GET_SHARED:
182
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630 *(__shared_t **)arg1 = &__shared_data;
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631 break;
136
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632
556
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633 case SYS_exit:
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634 if (gdb_active) {
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635 *sig = SIGTRAP;
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636 err = func;
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637 } else {
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638 CYGACC_CALL_IF_MONITOR_RETURN(arg1);
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639 // never returns
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640 }
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641 break;
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642
136
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643 default:
182
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644 return 0;
136
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645 }
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parents:
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646
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647 *retval = err;
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648 return 1;
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649 }
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650
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651 #endif