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annotate packages/hal/common/current/src/hal_stub.c @ 112:02ea4320376c ecos-sw-2000-07-21

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Merge from eCos master repository on 2000-07-21-21:01:39-BST
author jlarmour
date Fri, 21 Jul 2000 21:34:11 +0000
parents 84e4bde58b26
children 6ed91473a1cd
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1 //=============================================================================
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2 //
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3 // hal_stub.c
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4 //
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5 // Helper functions for stub, specific to eCos HAL
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6 //
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7 //=============================================================================
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8 //####COPYRIGHTBEGIN####
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9 //
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10 // -------------------------------------------
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11 // The contents of this file are subject to the Red Hat eCos Public License
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12 // Version 1.1 (the "License"); you may not use this file except in
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13 // compliance with the License. You may obtain a copy of the License at
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14 // http://www.redhat.com/
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15 //
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16 // Software distributed under the License is distributed on an "AS IS"
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17 // basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the
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18 // License for the specific language governing rights and limitations under
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19 // the License.
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20 //
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21 // The Original Code is eCos - Embedded Configurable Operating System,
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22 // released September 30, 1998.
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23 //
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24 // The Initial Developer of the Original Code is Red Hat.
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25 // Portions created by Red Hat are
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26 // Copyright (C) 1998, 1999, 2000 Red Hat, Inc.
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27 // All Rights Reserved.
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28 // -------------------------------------------
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29 //
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30 //####COPYRIGHTEND####
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31 //=============================================================================
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32 //#####DESCRIPTIONBEGIN####
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33 //
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34 // Author(s): jskov (based on powerpc/cogent hal_stub.c)
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35 // Contributors:jskov
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36 // Date: 1999-02-12
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37 // Purpose: Helper functions for stub, specific to eCos HAL
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38 // Description: Parts of the GDB stub requirements are provided by
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39 // the eCos HAL, rather than target and/or board specific
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40 // code.
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41 //
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42 //####DESCRIPTIONEND####
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43 //
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44 //=============================================================================
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45
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46 #include <pkgconf/hal.h>
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47 #ifdef CYGPKG_CYGMON
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48 #include <pkgconf/cygmon.h>
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49 #endif
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51 #ifdef CYGDBG_HAL_DEBUG_GDB_INCLUDE_STUBS
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52
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53 #include <cyg/hal/hal_stub.h> // Our header
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54
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55 #include <cyg/hal/hal_arch.h> // HAL_BREAKINST
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56 #include <cyg/hal/hal_cache.h> // HAL_xCACHE_x
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57 #include <cyg/hal/hal_intr.h> // interrupt disable/restore
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58
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59 #include <cyg/hal/hal_if.h> // ROM calling interface
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60 #include <cyg/hal/hal_misc.h> // Helper functions
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61
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62 #ifdef CYGDBG_HAL_DEBUG_GDB_THREAD_SUPPORT
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63 #include <cyg/hal/dbg-threads-api.h> // dbg_currthread_id
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64 #endif
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66 #ifdef USE_LONG_NAMES_FOR_ENUM_REGNAMES
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67 #define PC REG_PC
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68 #define SP REG_SP
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69 #endif
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70
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71 //-----------------------------------------------------------------------------
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72 // Extra eCos data.
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73
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74 // Saved registers.
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75 HAL_SavedRegisters *_hal_registers;
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76 target_register_t registers[NUMREGS];
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77 target_register_t alt_registers[NUMREGS] ; // Thread or saved process state
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78 target_register_t * _registers = registers; // Pointer to current set of registers
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80 #ifndef CYGSEM_HAL_VIRTUAL_VECTOR_SUPPORT // this should go away
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81 // Interrupt control.
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82 static volatile __PFI __interruptible_control;
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83 #endif
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84
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85 //-----------------------------------------------------------------------------
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86 // Register access
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87
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88 // Return the currently-saved value corresponding to register REG of
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89 // the exception context.
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90 target_register_t
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91 get_register (regnames_t reg)
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92 {
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93 return _registers[reg];
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94 }
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95
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96 // Store VALUE in the register corresponding to WHICH in the exception
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97 // context.
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98 void
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99 put_register (regnames_t which, target_register_t value)
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100 {
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101 _registers[which] = value;
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102 }
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103
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104 //-----------------------------------------------------------------------------
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105 // Serial stuff
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106 #ifdef CYGPKG_CYGMON
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107 extern void ecos_bsp_console_putc(char);
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108 extern char ecos_bsp_console_getc(void);
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109 #endif
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110
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111 // Write C to the current serial port.
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112 void
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113 putDebugChar (int c)
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114 {
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115 #ifdef CYGSEM_HAL_VIRTUAL_VECTOR_SUPPORT
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116 __call_if_debug_procs_t __debug_procs = CYGACC_CALL_IF_DEBUG_PROCS();
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117 CYGACC_COMM_IF_PUTC(*__debug_procs, c);
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118 #elif defined(CYGPKG_CYGMON)
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119 ecos_bsp_console_putc(c);
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120 #else
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121 HAL_STUB_PLATFORM_PUT_CHAR(c);
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122 #endif
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123 }
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124
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125 // Read one character from the current serial port.
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126 int
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127 getDebugChar (void)
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128 {
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129 #ifdef CYGSEM_HAL_VIRTUAL_VECTOR_SUPPORT
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130 __call_if_debug_procs_t __debug_procs = CYGACC_CALL_IF_DEBUG_PROCS();
107
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131 return CYGACC_COMM_IF_GETC(*__debug_procs);
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132 #elif defined(CYGPKG_CYGMON)
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133 return ecos_bsp_console_getc();
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134 #else
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135 return HAL_STUB_PLATFORM_GET_CHAR();
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136 #endif
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137 }
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138
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139 // Set the baud rate for the current serial port.
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140 void
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141 __set_baud_rate (int baud)
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142 {
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143 #ifdef CYGSEM_HAL_VIRTUAL_VECTOR_SUPPORT
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144 __call_if_debug_procs_t __debug_procs = CYGACC_CALL_IF_DEBUG_PROCS();
107
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145 CYGACC_COMM_IF_CONTROL(*__debug_procs, __COMMCTL_SETBAUD, baud);
101
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146 #elif defined(CYGPKG_CYGMON)
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147 // FIXME!
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148 #else
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149 HAL_STUB_PLATFORM_SET_BAUD_RATE(baud);
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150 #endif
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151 }
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152
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153 //-----------------------------------------------------------------------------
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154 // GDB interrupt (BREAK) support.
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155
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156 #ifdef CYGDBG_HAL_DEBUG_GDB_BREAK_SUPPORT
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157
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158 #ifndef CYGPKG_HAL_ARM
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159
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160 #if (HAL_BREAKINST_SIZE == 1)
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161 typedef cyg_uint8 t_inst;
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162 #elif (HAL_BREAKINST_SIZE == 2)
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163 typedef cyg_uint16 t_inst;
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164 #elif (HAL_BREAKINST_SIZE == 4)
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165 typedef cyg_uint32 t_inst;
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166 #else
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167 #error "Don't know how to handle that size"
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168 #endif
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169
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170 typedef struct
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171 {
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172 t_inst *targetAddr;
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173 t_inst savedInstr;
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174 } instrBuffer;
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175
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176 static instrBuffer break_buffer;
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177
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178 volatile int cyg_hal_gdb_running_step = 0;
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179
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180 void
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181 cyg_hal_gdb_place_break (target_register_t pc)
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182 {
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183 cyg_hal_gdb_interrupt( pc ); // Let's hope this becomes a drop-through:
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184 }
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185
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186 void
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187 cyg_hal_gdb_interrupt (target_register_t pc)
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188 {
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189 CYGARC_HAL_SAVE_GP();
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190
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191 // Clear flag that we Continued instead of Stepping
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192 cyg_hal_gdb_running_step = 0;
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193 // and override existing break? So that a ^C takes effect...
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194 if (NULL != break_buffer.targetAddr)
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195 cyg_hal_gdb_remove_break( (target_register_t)break_buffer.targetAddr );
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196
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197 if (NULL == break_buffer.targetAddr) {
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198 break_buffer.targetAddr = (t_inst*) pc;
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199 break_buffer.savedInstr = *(t_inst*)pc;
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200 *(t_inst*)pc = (t_inst)HAL_BREAKINST;
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201
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202 __data_cache(CACHE_FLUSH);
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203 __instruction_cache(CACHE_FLUSH);
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204 }
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205
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206 CYGARC_HAL_RESTORE_GP();
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207 }
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208
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209 int
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210 cyg_hal_gdb_remove_break (target_register_t pc)
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211 {
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212 if ( cyg_hal_gdb_running_step )
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213 return 0;
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214
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215 if ((t_inst*)pc == break_buffer.targetAddr) {
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216 *(t_inst*)pc = break_buffer.savedInstr;
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217 break_buffer.targetAddr = NULL;
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218
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219 __data_cache(CACHE_FLUSH);
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220 __instruction_cache(CACHE_FLUSH);
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221 return 1;
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222 }
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223 return 0;
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224 }
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225
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226 int
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227 cyg_hal_gdb_break_is_set (void)
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228 {
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229 if (NULL != break_buffer.targetAddr) {
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230 return 1;
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231 }
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232 return 0;
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233 }
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234
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235 #endif // CYGPKG_HAL_ARM
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236
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237 #endif // CYGDBG_HAL_DEBUG_GDB_BREAK_SUPPORT
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238
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239 // Use this function to disable serial interrupts whenever reply
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240 // characters are expected from GDB. The reason we want to control
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241 // whether the target can be interrupted or not is simply that GDB on
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242 // the host will be sending acknowledge characters/commands while the
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243 // stub is running - if serial interrupts were still active, the
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244 // characters would never reach the (polling) getDebugChar.
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245 static void
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246 interruptible(int state)
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247 {
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248 static int __interrupts_suspended = 0;
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249
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250 if (state) {
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251 __interrupts_suspended--;
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252 if (0 >= __interrupts_suspended) {
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253 __interrupts_suspended = 0;
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254 #ifdef CYGSEM_HAL_VIRTUAL_VECTOR_SUPPORT // this _check_ should go away
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255 {
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256 hal_virtual_comm_table_t* __chan;
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257 __chan = CYGACC_CALL_IF_DEBUG_PROCS();
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258 CYGACC_COMM_IF_CONTROL(*__chan, __COMMCTL_IRQ_ENABLE);
105
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259 }
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260 #else
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261 if (__interruptible_control)
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262 __interruptible_control(1);
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263 #endif
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264 }
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265 } else {
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266 __interrupts_suspended++;
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267 if (1 == __interrupts_suspended)
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268 #ifdef CYGSEM_HAL_VIRTUAL_VECTOR_SUPPORT // this _check_ should go away
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269 {
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270 hal_virtual_comm_table_t* __chan;
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271 __chan = CYGACC_CALL_IF_DEBUG_PROCS();
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272 CYGACC_COMM_IF_CONTROL(*__chan, __COMMCTL_IRQ_DISABLE);
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273 }
105
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274 #else
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275 if (__interruptible_control)
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276 __interruptible_control(0);
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277 #endif
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278 }
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279 }
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280
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281 #ifdef CYGSEM_HAL_VIRTUAL_VECTOR_SUPPORT
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282 //-----------------------------------------------------------------------------
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283 // GDB O-packetizer function.
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284
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285 // This gets called via the virtual vector debug comms entry and
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286 // handles O-packetization. The debug comms entries are used for the
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287 // actual device IO.
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288
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289 static cyg_uint8
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290 cyg_hal_gdb_diag_getc(void* __ch_data)
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291 {
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292 cyg_uint8 __ch;
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293 hal_virtual_comm_table_t* __chan = CYGACC_CALL_IF_DEBUG_PROCS();
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294 CYGARC_HAL_SAVE_GP();
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295
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296 __ch = CYGACC_COMM_IF_GETC(*__chan);
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297
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298 CYGARC_HAL_RESTORE_GP();
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299
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300 return __ch;
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301 }
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302
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303
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304 static void
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305 cyg_hal_gdb_diag_putc(void* __ch_data, cyg_uint8 c)
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306 {
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307 static char line[100];
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308 static int pos = 0;
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309 CYGARC_HAL_SAVE_GP();
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310
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311 // No need to send CRs
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312 if( c == '\r' ) return;
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313
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314 line[pos++] = c;
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315
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316 if( c == '\n' || pos == sizeof(line) )
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317 {
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318 CYG_INTERRUPT_STATE old;
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319 hal_virtual_comm_table_t* __chan = CYGACC_CALL_IF_DEBUG_PROCS();
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320
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321 // Disable interrupts. This prevents GDB trying to interrupt us
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322 // while we are in the middle of sending a packet. The serial
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323 // receive interrupt will be seen when we re-enable interrupts
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324 // later.
105
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325 #ifdef CYG_HAL_STARTUP_ROM
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326 HAL_DISABLE_INTERRUPTS(old);
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327 #else
101
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328 CYG_HAL_GDB_ENTER_CRITICAL_IO_REGION(old);
105
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329 #endif
101
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330
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331 while(1)
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332 {
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333 static const char hex[] = "0123456789ABCDEF";
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334 cyg_uint8 csum = 0, c1;
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335 int i;
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336
107
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337 CYGACC_COMM_IF_PUTC(*__chan, '$');
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338 CYGACC_COMM_IF_PUTC(*__chan, 'O');
101
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339 csum += 'O';
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340 for( i = 0; i < pos; i++ )
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341 {
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342 char ch = line[i];
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343 char h = hex[(ch>>4)&0xF];
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344 char l = hex[ch&0xF];
107
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345 CYGACC_COMM_IF_PUTC(*__chan, h);
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346 CYGACC_COMM_IF_PUTC(*__chan, l);
101
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347 csum += h;
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348 csum += l;
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349 }
107
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350 CYGACC_COMM_IF_PUTC(*__chan, '#');
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351 CYGACC_COMM_IF_PUTC(*__chan, hex[(csum>>4)&0xF]);
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352 CYGACC_COMM_IF_PUTC(*__chan, hex[csum&0xF]);
101
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353
107
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354 c1 = CYGACC_COMM_IF_GETC(*__chan);
101
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355 if( c1 == '+' ) break;
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356
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357 if( cyg_hal_is_break( &c1 , 1 ) ) {
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358 // Caller's responsibility to react on this.
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359 CYGACC_CALL_IF_CONSOLE_INTERRUPT_FLAG_SET(1);
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360 break;
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361 }
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362 }
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363
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364 pos = 0;
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365 // And re-enable interrupts
105
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366 #ifdef CYG_HAL_STARTUP_ROM
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367 HAL_RESTORE_INTERRUPTS(old);
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368 #else
101
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369 CYG_HAL_GDB_LEAVE_CRITICAL_IO_REGION(old);
105
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370 #endif
101
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371 }
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372
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373 CYGARC_HAL_RESTORE_GP();
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374 }
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375
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376 static void
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377 cyg_hal_gdb_diag_write(void* __ch_data, const cyg_uint8* __buf,
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378 cyg_uint32 __len)
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379 {
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380 CYGARC_HAL_SAVE_GP();
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381
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382 while(__len-- > 0)
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383 cyg_hal_gdb_diag_putc(__ch_data, *__buf++);
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384
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385 CYGARC_HAL_RESTORE_GP();
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386 }
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387
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388 static void
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389 cyg_hal_gdb_diag_read(void* __ch_data, cyg_uint8* __buf, cyg_uint32 __len)
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390 {
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391 CYGARC_HAL_SAVE_GP();
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392
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393 while(__len-- > 0)
103
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394 *__buf++ = cyg_hal_gdb_diag_getc(__ch_data);
101
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395
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396 CYGARC_HAL_RESTORE_GP();
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397 }
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398
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399 static int
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400 cyg_hal_gdb_diag_control(void *__ch_data, __comm_control_cmd_t __func, ...)
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401 {
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402 // Do nothing (yet).
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403 return 0;
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404 }
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405 #endif
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406
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407
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408 //-----------------------------------------------------------------------------
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409 // eCos stub entry and exit magic.
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410
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411 #ifdef CYGDBG_HAL_DEBUG_GDB_BREAK_SUPPORT
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412 int cyg_hal_gdb_break;
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413 #endif
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414
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415 // Called at stub *entry*
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416 static void
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417 handle_exception_cleanup( void )
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418 {
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419 interruptible(0);
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420
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421 // Expand the HAL_SavedRegisters structure into the GDB register
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422 // array format.
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423 HAL_GET_GDB_REGISTERS(&registers[0], _hal_registers);
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424 _registers = &registers[0];
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425
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426 #ifdef HAL_STUB_PLATFORM_STUBS_FIXUP
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427 // Some architectures may need to fix the PC in case of a partial
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428 // or fully executed trap instruction. GDB only takes correct action
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429 // when the PC is pointing to the breakpoint instruction it set.
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430 //
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431 // Most architectures would leave PC pointing at the trap
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432 // instruction itself though, and so do not need to do anything
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433 // special.
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434 HAL_STUB_PLATFORM_STUBS_FIXUP();
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435 #endif
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436
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437 #ifdef CYGDBG_HAL_DEBUG_GDB_BREAK_SUPPORT
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438 // If we continued instead of stepping, when there was a break set
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439 // ie. we were stepping within a critical region, clear the break, and
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440 // that flag. If we stopped for some other reason, this has no effect.
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441 if ( cyg_hal_gdb_running_step ) {
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442 cyg_hal_gdb_running_step = 0;
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443 cyg_hal_gdb_remove_break(get_register (PC));
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444 }
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445
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446 // FIXME: (there may be a better way to do this)
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447 // If we hit a breakpoint set by the gdb interrupt stub, make it
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448 // seem like an interrupt rather than having hit a breakpoint.
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449 cyg_hal_gdb_break = cyg_hal_gdb_remove_break(get_register (PC));
2
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450 #endif
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451 }
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452
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453 // Called at stub *exit*
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454 static void
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455 handle_exception_init( void )
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456 {
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diff changeset
457 // Compact register array again.
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458 HAL_SET_GDB_REGISTERS(_hal_registers, &registers[0]);
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459
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460 interruptible(1);
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461 }
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462
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463
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464 //-----------------------------------------------------------------------------
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465 // Initialization.
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466
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467 // Signal handler.
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468 int
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469 cyg_hal_process_signal (int signal)
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470 {
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471 // We don't care about the signal (atm).
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472 return 0;
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473 }
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474
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475 // Install the standard set of trap handlers for the stub.
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476 void
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477 __install_traps (void)
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478 {
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479 // Set signal handling vector so we can treat 'C<signum>' as 'c'.
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480 __process_signal_vec = &cyg_hal_process_signal;
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481 // Set exit vector to reset vector. This will allow automatic reset on
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482 // some platforms.
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483 __process_exit_vec = &__reset;
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484
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485 __cleanup_vec = &handle_exception_cleanup;
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486 __init_vec = &handle_exception_init;
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487
105
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488 #ifndef CYGSEM_HAL_VIRTUAL_VECTOR_SUPPORT // this should go away
2
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489 #ifdef CYGDBG_HAL_DEBUG_GDB_BREAK_SUPPORT
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490 // Control of GDB interrupts.
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491 __interruptible_control = HAL_STUB_PLATFORM_INTERRUPTIBLE;
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492 #endif
105
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493 #endif
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494
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495 // Nothing further to do, handle_exception will be called when an
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496 // exception occurs.
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497 }
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498
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499 // Initialize the hardware.
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500 void
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501 initHardware (void)
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502 {
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503 static int initialized = 0;
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504
103
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505 if (initialized)
101
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506 return;
103
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507 initialized = 1;
2
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508
101
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509 // Get serial port initialized.
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diff changeset
510 HAL_STUB_PLATFORM_INIT_SERIAL();
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511
101
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diff changeset
512 #ifdef CYGSEM_HAL_VIRTUAL_VECTOR_SUPPORT
103
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513 {
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diff changeset
514 hal_virtual_comm_table_t* comm;
107
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515 int cur = CYGACC_CALL_IF_SET_CONSOLE_COMM(CYGNUM_CALL_IF_SET_COMM_ID_QUERY_CURRENT);
103
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516
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diff changeset
517 // Initialize mangler procs
107
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diff changeset
518 CYGACC_CALL_IF_SET_CONSOLE_COMM(CYGNUM_CALL_IF_SET_COMM_ID_MANGLER);
103
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519 comm = CYGACC_CALL_IF_CONSOLE_PROCS();
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diff changeset
520 CYGACC_COMM_IF_WRITE_SET(*comm, cyg_hal_gdb_diag_write);
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diff changeset
521 CYGACC_COMM_IF_READ_SET(*comm, cyg_hal_gdb_diag_read);
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diff changeset
522 CYGACC_COMM_IF_PUTC_SET(*comm, cyg_hal_gdb_diag_putc);
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diff changeset
523 CYGACC_COMM_IF_GETC_SET(*comm, cyg_hal_gdb_diag_getc);
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diff changeset
524 CYGACC_COMM_IF_CONTROL_SET(*comm, cyg_hal_gdb_diag_control);
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diff changeset
525
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diff changeset
526 // Now either restore the previous console channel, or let the
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diff changeset
527 // mangler stay in its place. The latter happens if the
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diff changeset
528 // console channel was previously unspecified, or if the
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diff changeset
529 // previous channel matches the used for GDB communication.
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530 if (CYGNUM_CALL_IF_SET_COMM_ID_EMPTY != cur
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diff changeset
531 && CYGNUM_HAL_VIRTUAL_VECTOR_DEBUG_CHANNEL != cur)
107
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diff changeset
532 CYGACC_CALL_IF_SET_CONSOLE_COMM(cur);
103
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533
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diff changeset
534 // Set the debug channel.
107
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diff changeset
535 CYGACC_CALL_IF_SET_DEBUG_COMM(CYGNUM_HAL_VIRTUAL_VECTOR_DEBUG_CHANNEL);
103
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536 }
110
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diff changeset
537 #endif // CYGSEM_HAL_VIRTUAL_VECTOR_SUPPORT
105
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diff changeset
538
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diff changeset
539 #ifdef HAL_STUB_PLATFORM_INIT
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diff changeset
540 // If the platform defines any initialization code, call it here.
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diff changeset
541 HAL_STUB_PLATFORM_INIT();
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diff changeset
542 #endif
101
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diff changeset
543
110
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diff changeset
544 #ifndef CYGSEM_HAL_VIRTUAL_VECTOR_SUPPORT // this should go away
2
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545 #ifdef CYGDBG_HAL_DEBUG_GDB_BREAK_SUPPORT
101
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diff changeset
546 // Get interrupt handler initialized.
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diff changeset
547 HAL_STUB_PLATFORM_INIT_BREAK_IRQ();
2
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548 #endif
110
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diff changeset
549 #endif // !CYGSEM_HAL_VIRTUAL_VECTOR_SUPPORT
2
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550 }
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551
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diff changeset
552 // Reset the board.
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diff changeset
553 void
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diff changeset
554 __reset (void)
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555 {
101
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diff changeset
556 #ifdef CYGSEM_HAL_VIRTUAL_VECTOR_SUPPORT
107
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diff changeset
557 __call_if_reset_t __rom_reset = CYGACC_CALL_IF_RESET_GET();
101
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diff changeset
558 if (__rom_reset)
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diff changeset
559 __rom_reset();
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diff changeset
560 #else
2
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561 HAL_STUB_PLATFORM_RESET();
76
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diff changeset
562 #endif
2
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563 }
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564
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565 //-----------------------------------------------------------------------------
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diff changeset
566 // Breakpoint support.
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567
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568 #ifndef CYGPKG_HAL_ARM
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569 // This function will generate a breakpoint exception. It is used at
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diff changeset
570 // the beginning of a program to sync up with a debugger and can be
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571 // used otherwise as a quick means to stop program execution and
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diff changeset
572 // "break" into the debugger.
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573 void
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574 breakpoint()
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575 {
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576 HAL_BREAKPOINT(_breakinst);
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577 }
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578
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579 // This function returns the opcode for a 'trap' instruction.
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diff changeset
580 unsigned long
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581 __break_opcode ()
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582 {
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583 return HAL_BREAKINST;
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584 }
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585 #endif
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586
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587 //-----------------------------------------------------------------------------
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588 // Write the 'T' packet in BUFFER. SIGVAL is the signal the program received.
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diff changeset
589 void
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590 __build_t_packet (int sigval, char *buf)
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591 {
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592 target_register_t addr;
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593 char *ptr = buf;
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594
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595 *ptr++ = 'T';
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596 *ptr++ = __tohex (sigval >> 4);
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diff changeset
597 *ptr++ = __tohex (sigval);
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diff changeset
598
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599 #ifdef CYGDBG_HAL_DEBUG_GDB_THREAD_SUPPORT
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diff changeset
600 // Include thread ID if thread manipulation is required.
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601 {
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602 int id;
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603
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604 *ptr++ = 't';
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diff changeset
605 *ptr++ = 'h';
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diff changeset
606 *ptr++ = 'r';
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diff changeset
607 *ptr++ = 'e';
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608 *ptr++ = 'a';
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609 *ptr++ = 'd';
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610 *ptr++ = ':';
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611
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612 #if (CYG_BYTEORDER == CYG_MSBFIRST)
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parents:
diff changeset
613 id = dbg_currthread_id ();
443894e2e912 Block commit of eCos version 1.2.1
jlarmour
parents:
diff changeset
614 #else
443894e2e912 Block commit of eCos version 1.2.1
jlarmour
parents:
diff changeset
615 // FIXME: Temporary workaround for PR 18903. Thread ID must be
443894e2e912 Block commit of eCos version 1.2.1
jlarmour
parents:
diff changeset
616 // big-endian in the T packet.
443894e2e912 Block commit of eCos version 1.2.1
jlarmour
parents:
diff changeset
617 {
443894e2e912 Block commit of eCos version 1.2.1
jlarmour
parents:
diff changeset
618 unsigned char* bep = (unsigned char*)&id;
443894e2e912 Block commit of eCos version 1.2.1
jlarmour
parents:
diff changeset
619 int be_id;
443894e2e912 Block commit of eCos version 1.2.1
jlarmour
parents:
diff changeset
620
443894e2e912 Block commit of eCos version 1.2.1
jlarmour
parents:
diff changeset
621 be_id = dbg_currthread_id ();
443894e2e912 Block commit of eCos version 1.2.1
jlarmour
parents:
diff changeset
622 *bep++ = (be_id >> 24) & 0xff ;
443894e2e912 Block commit of eCos version 1.2.1
jlarmour
parents:
diff changeset
623 *bep++ = (be_id >> 16) & 0xff ;
443894e2e912 Block commit of eCos version 1.2.1
jlarmour
parents:
diff changeset
624 *bep++ = (be_id >> 8) & 0xff ;
443894e2e912 Block commit of eCos version 1.2.1
jlarmour
parents:
diff changeset
625 *bep++ = (be_id & 0xff) ;
443894e2e912 Block commit of eCos version 1.2.1
jlarmour
parents:
diff changeset
626 }
443894e2e912 Block commit of eCos version 1.2.1
jlarmour
parents:
diff changeset
627 #endif
443894e2e912 Block commit of eCos version 1.2.1
jlarmour
parents:
diff changeset
628 ptr = __mem2hex((char *)&id, ptr, sizeof(id), 0);
443894e2e912 Block commit of eCos version 1.2.1
jlarmour
parents:
diff changeset
629 *ptr++ = ';';
443894e2e912 Block commit of eCos version 1.2.1
jlarmour
parents:
diff changeset
630 }
443894e2e912 Block commit of eCos version 1.2.1
jlarmour
parents:
diff changeset
631 #endif
443894e2e912 Block commit of eCos version 1.2.1
jlarmour
parents:
diff changeset
632
443894e2e912 Block commit of eCos version 1.2.1
jlarmour
parents:
diff changeset
633 *ptr++ = __tohex (PC >> 4);
443894e2e912 Block commit of eCos version 1.2.1
jlarmour
parents:
diff changeset
634 *ptr++ = __tohex (PC);
443894e2e912 Block commit of eCos version 1.2.1
jlarmour
parents:
diff changeset
635 *ptr++ = ':';
443894e2e912 Block commit of eCos version 1.2.1
jlarmour
parents:
diff changeset
636 addr = get_register (PC);
112
02ea4320376c Merge from eCos master repository on 2000-07-21-21:01:39-BST
jlarmour
parents: 110
diff changeset
637 #ifdef CYGARC_REGSIZE_DIFFERS_FROM_TARGET_REGISTER_T
02ea4320376c Merge from eCos master repository on 2000-07-21-21:01:39-BST
jlarmour
parents: 110
diff changeset
638 ptr = __mem2hex((char *)&addr, ptr, sizeof(addr), 0);
02ea4320376c Merge from eCos master repository on 2000-07-21-21:01:39-BST
jlarmour
parents: 110
diff changeset
639 if (sizeof(addr) < REGSIZE(PC))
02ea4320376c Merge from eCos master repository on 2000-07-21-21:01:39-BST
jlarmour
parents: 110
diff changeset
640 {
02ea4320376c Merge from eCos master repository on 2000-07-21-21:01:39-BST
jlarmour
parents: 110
diff changeset
641 // GDB is expecting REGSIZE(PC) number of bytes.
02ea4320376c Merge from eCos master repository on 2000-07-21-21:01:39-BST
jlarmour
parents: 110
diff changeset
642 // We only have sizeof(addr) number. Let's fill
02ea4320376c Merge from eCos master repository on 2000-07-21-21:01:39-BST
jlarmour
parents: 110
diff changeset
643 // the appropriate number of bytes intelligently.
02ea4320376c Merge from eCos master repository on 2000-07-21-21:01:39-BST
jlarmour
parents: 110
diff changeset
644 target_register_t extend_val = 0;
02ea4320376c Merge from eCos master repository on 2000-07-21-21:01:39-BST
jlarmour
parents: 110
diff changeset
645 #ifdef CYGARC_SIGN_EXTEND_REGISTERS
02ea4320376c Merge from eCos master repository on 2000-07-21-21:01:39-BST
jlarmour
parents: 110
diff changeset
646 {
02ea4320376c Merge from eCos master repository on 2000-07-21-21:01:39-BST
jlarmour
parents: 110
diff changeset
647 unsigned long bits_in_addr = (sizeof(addr) << 3); // ie Size in bytes * 8
02ea4320376c Merge from eCos master repository on 2000-07-21-21:01:39-BST
jlarmour
parents: 110
diff changeset
648 target_register_t sign_bit_mask = (1 << (bits_in_addr - 1));
02ea4320376c Merge from eCos master repository on 2000-07-21-21:01:39-BST
jlarmour
parents: 110
diff changeset
649 if ((addr & sign_bit_mask) == sign_bit_mask)
02ea4320376c Merge from eCos master repository on 2000-07-21-21:01:39-BST
jlarmour
parents: 110
diff changeset
650 extend_val = ~0;
02ea4320376c Merge from eCos master repository on 2000-07-21-21:01:39-BST
jlarmour
parents: 110
diff changeset
651 }
02ea4320376c Merge from eCos master repository on 2000-07-21-21:01:39-BST
jlarmour
parents: 110
diff changeset
652 #endif
02ea4320376c Merge from eCos master repository on 2000-07-21-21:01:39-BST
jlarmour
parents: 110
diff changeset
653 ptr = __mem2hex((char *)&extend_val, ptr, REGSIZE(PC) - sizeof(addr), 0);
02ea4320376c Merge from eCos master repository on 2000-07-21-21:01:39-BST
jlarmour
parents: 110
diff changeset
654 }
02ea4320376c Merge from eCos master repository on 2000-07-21-21:01:39-BST
jlarmour
parents: 110
diff changeset
655 #else
34
29bc183297e1 Merge from eCos master repository on 1999-09-02-16:26:10-BST
jlarmour
parents: 30
diff changeset
656 ptr = __mem2hex((char *)&addr, ptr, REGSIZE(PC), 0);
112
02ea4320376c Merge from eCos master repository on 2000-07-21-21:01:39-BST
jlarmour
parents: 110
diff changeset
657 #endif
2
443894e2e912 Block commit of eCos version 1.2.1
jlarmour
parents:
diff changeset
658 *ptr++ = ';';
443894e2e912 Block commit of eCos version 1.2.1
jlarmour
parents:
diff changeset
659
443894e2e912 Block commit of eCos version 1.2.1
jlarmour
parents:
diff changeset
660 *ptr++ = __tohex (SP >> 4);
443894e2e912 Block commit of eCos version 1.2.1
jlarmour
parents:
diff changeset
661 *ptr++ = __tohex (SP);
443894e2e912 Block commit of eCos version 1.2.1
jlarmour
parents:
diff changeset
662 *ptr++ = ':';
112
02ea4320376c Merge from eCos master repository on 2000-07-21-21:01:39-BST
jlarmour
parents: 110
diff changeset
663 addr = (target_register_t) get_register (SP);
02ea4320376c Merge from eCos master repository on 2000-07-21-21:01:39-BST
jlarmour
parents: 110
diff changeset
664 #ifdef CYGARC_REGSIZE_DIFFERS_FROM_TARGET_REGISTER_T
02ea4320376c Merge from eCos master repository on 2000-07-21-21:01:39-BST
jlarmour
parents: 110
diff changeset
665 ptr = __mem2hex((char *)&addr, ptr, sizeof(addr), 0);
02ea4320376c Merge from eCos master repository on 2000-07-21-21:01:39-BST
jlarmour
parents: 110
diff changeset
666 if (sizeof(addr) < REGSIZE(SP))
02ea4320376c Merge from eCos master repository on 2000-07-21-21:01:39-BST
jlarmour
parents: 110
diff changeset
667 {
02ea4320376c Merge from eCos master repository on 2000-07-21-21:01:39-BST
jlarmour
parents: 110
diff changeset
668 // GDB is expecting REGSIZE(SP) number of bytes.
02ea4320376c Merge from eCos master repository on 2000-07-21-21:01:39-BST
jlarmour
parents: 110
diff changeset
669 // We only have sizeof(addr) number. Let's fill
02ea4320376c Merge from eCos master repository on 2000-07-21-21:01:39-BST
jlarmour
parents: 110
diff changeset
670 // the appropriate number of bytes intelligently.
02ea4320376c Merge from eCos master repository on 2000-07-21-21:01:39-BST
jlarmour
parents: 110
diff changeset
671 target_register_t extend_val = 0;
02ea4320376c Merge from eCos master repository on 2000-07-21-21:01:39-BST
jlarmour
parents: 110
diff changeset
672 #ifdef CYGARC_SIGN_EXTEND_REGISTERS
02ea4320376c Merge from eCos master repository on 2000-07-21-21:01:39-BST
jlarmour
parents: 110
diff changeset
673 {
02ea4320376c Merge from eCos master repository on 2000-07-21-21:01:39-BST
jlarmour
parents: 110
diff changeset
674 unsigned long bits_in_addr = (sizeof(addr) << 3); // ie Size in bytes * 8
02ea4320376c Merge from eCos master repository on 2000-07-21-21:01:39-BST
jlarmour
parents: 110
diff changeset
675 target_register_t sign_bit_mask = (1 << (bits_in_addr - 1));
02ea4320376c Merge from eCos master repository on 2000-07-21-21:01:39-BST
jlarmour
parents: 110
diff changeset
676 if ((addr & sign_bit_mask) == sign_bit_mask)
02ea4320376c Merge from eCos master repository on 2000-07-21-21:01:39-BST
jlarmour
parents: 110
diff changeset
677 extend_val = ~0;
02ea4320376c Merge from eCos master repository on 2000-07-21-21:01:39-BST
jlarmour
parents: 110
diff changeset
678 }
02ea4320376c Merge from eCos master repository on 2000-07-21-21:01:39-BST
jlarmour
parents: 110
diff changeset
679 #endif
02ea4320376c Merge from eCos master repository on 2000-07-21-21:01:39-BST
jlarmour
parents: 110
diff changeset
680 ptr = __mem2hex((char *)&extend_val, ptr, REGSIZE(SP) - sizeof(addr), 0);
02ea4320376c Merge from eCos master repository on 2000-07-21-21:01:39-BST
jlarmour
parents: 110
diff changeset
681 }
02ea4320376c Merge from eCos master repository on 2000-07-21-21:01:39-BST
jlarmour
parents: 110
diff changeset
682 #else
02ea4320376c Merge from eCos master repository on 2000-07-21-21:01:39-BST
jlarmour
parents: 110
diff changeset
683 ptr = __mem2hex((char *)&addr, ptr, REGSIZE(SP), 0);
02ea4320376c Merge from eCos master repository on 2000-07-21-21:01:39-BST
jlarmour
parents: 110
diff changeset
684 #endif
2
443894e2e912 Block commit of eCos version 1.2.1
jlarmour
parents:
diff changeset
685 *ptr++ = ';';
443894e2e912 Block commit of eCos version 1.2.1
jlarmour
parents:
diff changeset
686
443894e2e912 Block commit of eCos version 1.2.1
jlarmour
parents:
diff changeset
687 *ptr++ = 0;
443894e2e912 Block commit of eCos version 1.2.1
jlarmour
parents:
diff changeset
688 }
443894e2e912 Block commit of eCos version 1.2.1
jlarmour
parents:
diff changeset
689
443894e2e912 Block commit of eCos version 1.2.1
jlarmour
parents:
diff changeset
690
443894e2e912 Block commit of eCos version 1.2.1
jlarmour
parents:
diff changeset
691 //-----------------------------------------------------------------------------
443894e2e912 Block commit of eCos version 1.2.1
jlarmour
parents:
diff changeset
692 // Cache functions.
443894e2e912 Block commit of eCos version 1.2.1
jlarmour
parents:
diff changeset
693
443894e2e912 Block commit of eCos version 1.2.1
jlarmour
parents:
diff changeset
694 // Perform the specified operation on the instruction cache.
443894e2e912 Block commit of eCos version 1.2.1
jlarmour
parents:
diff changeset
695 // Returns 1 if the cache is enabled, 0 otherwise.
443894e2e912 Block commit of eCos version 1.2.1
jlarmour
parents:
diff changeset
696 int
443894e2e912 Block commit of eCos version 1.2.1
jlarmour
parents:
diff changeset
697 __instruction_cache (cache_control_t request)
443894e2e912 Block commit of eCos version 1.2.1
jlarmour
parents:
diff changeset
698 {
443894e2e912 Block commit of eCos version 1.2.1
jlarmour
parents:
diff changeset
699 int state = 1;
443894e2e912 Block commit of eCos version 1.2.1
jlarmour
parents:
diff changeset
700
443894e2e912 Block commit of eCos version 1.2.1
jlarmour
parents:
diff changeset
701 switch (request) {
443894e2e912 Block commit of eCos version 1.2.1
jlarmour
parents:
diff changeset
702 case CACHE_ENABLE:
443894e2e912 Block commit of eCos version 1.2.1
jlarmour
parents:
diff changeset
703 HAL_ICACHE_ENABLE();
443894e2e912 Block commit of eCos version 1.2.1
jlarmour
parents:
diff changeset
704 break;
443894e2e912 Block commit of eCos version 1.2.1
jlarmour
parents:
diff changeset
705 case CACHE_DISABLE:
443894e2e912 Block commit of eCos version 1.2.1
jlarmour
parents:
diff changeset
706 HAL_ICACHE_DISABLE();
443894e2e912 Block commit of eCos version 1.2.1
jlarmour
parents:
diff changeset
707 state = 0;
443894e2e912 Block commit of eCos version 1.2.1
jlarmour
parents:
diff changeset
708 break;
443894e2e912 Block commit of eCos version 1.2.1
jlarmour
parents:
diff changeset
709 case CACHE_FLUSH:
443894e2e912 Block commit of eCos version 1.2.1
jlarmour
parents:
diff changeset
710 HAL_ICACHE_SYNC();
443894e2e912 Block commit of eCos version 1.2.1
jlarmour
parents:
diff changeset
711 break;
443894e2e912 Block commit of eCos version 1.2.1
jlarmour
parents:
diff changeset
712 case CACHE_NOOP:
443894e2e912 Block commit of eCos version 1.2.1
jlarmour
parents:
diff changeset
713 /* fall through */
443894e2e912 Block commit of eCos version 1.2.1
jlarmour
parents:
diff changeset
714 default:
443894e2e912 Block commit of eCos version 1.2.1
jlarmour
parents:
diff changeset
715 break;
443894e2e912 Block commit of eCos version 1.2.1
jlarmour
parents:
diff changeset
716 }
443894e2e912 Block commit of eCos version 1.2.1
jlarmour
parents:
diff changeset
717
443894e2e912 Block commit of eCos version 1.2.1
jlarmour
parents:
diff changeset
718 #ifdef HAL_ICACHE_IS_ENABLED
443894e2e912 Block commit of eCos version 1.2.1
jlarmour
parents:
diff changeset
719 HAL_ICACHE_IS_ENABLED(state);
443894e2e912 Block commit of eCos version 1.2.1
jlarmour
parents:
diff changeset
720 #endif
443894e2e912 Block commit of eCos version 1.2.1
jlarmour
parents:
diff changeset
721
443894e2e912 Block commit of eCos version 1.2.1
jlarmour
parents:
diff changeset
722 return state;
443894e2e912 Block commit of eCos version 1.2.1
jlarmour
parents:
diff changeset
723 }
443894e2e912 Block commit of eCos version 1.2.1
jlarmour
parents:
diff changeset
724
443894e2e912 Block commit of eCos version 1.2.1
jlarmour
parents:
diff changeset
725 // Perform the specified operation on the data cache.
443894e2e912 Block commit of eCos version 1.2.1
jlarmour
parents:
diff changeset
726 // Returns 1 if the cache is enabled, 0 otherwise.
443894e2e912 Block commit of eCos version 1.2.1
jlarmour
parents:
diff changeset
727 int
443894e2e912 Block commit of eCos version 1.2.1
jlarmour
parents:
diff changeset
728 __data_cache (cache_control_t request)
443894e2e912 Block commit of eCos version 1.2.1
jlarmour
parents:
diff changeset
729 {
443894e2e912 Block commit of eCos version 1.2.1
jlarmour
parents:
diff changeset
730 int state = 1;
443894e2e912 Block commit of eCos version 1.2.1
jlarmour
parents:
diff changeset
731
443894e2e912 Block commit of eCos version 1.2.1
jlarmour
parents:
diff changeset
732 switch (request) {
443894e2e912 Block commit of eCos version 1.2.1
jlarmour
parents:
diff changeset
733 case CACHE_ENABLE:
443894e2e912 Block commit of eCos version 1.2.1
jlarmour
parents:
diff changeset
734 HAL_DCACHE_ENABLE();
443894e2e912 Block commit of eCos version 1.2.1
jlarmour
parents:
diff changeset
735 break;
443894e2e912 Block commit of eCos version 1.2.1
jlarmour
parents:
diff changeset
736 case CACHE_DISABLE:
443894e2e912 Block commit of eCos version 1.2.1
jlarmour
parents:
diff changeset
737 HAL_DCACHE_DISABLE();
443894e2e912 Block commit of eCos version 1.2.1
jlarmour
parents:
diff changeset
738 state = 0;
443894e2e912 Block commit of eCos version 1.2.1
jlarmour
parents:
diff changeset
739 break;
443894e2e912 Block commit of eCos version 1.2.1
jlarmour
parents:
diff changeset
740 case CACHE_FLUSH:
443894e2e912 Block commit of eCos version 1.2.1
jlarmour
parents:
diff changeset
741 HAL_DCACHE_SYNC();
443894e2e912 Block commit of eCos version 1.2.1
jlarmour
parents:
diff changeset
742 break;
443894e2e912 Block commit of eCos version 1.2.1
jlarmour
parents:
diff changeset
743 case CACHE_NOOP:
443894e2e912 Block commit of eCos version 1.2.1
jlarmour
parents:
diff changeset
744 /* fall through */
443894e2e912 Block commit of eCos version 1.2.1
jlarmour
parents:
diff changeset
745 default:
443894e2e912 Block commit of eCos version 1.2.1
jlarmour
parents:
diff changeset
746 break;
443894e2e912 Block commit of eCos version 1.2.1
jlarmour
parents:
diff changeset
747 }
443894e2e912 Block commit of eCos version 1.2.1
jlarmour
parents:
diff changeset
748 #ifdef HAL_DCACHE_IS_ENABLED
443894e2e912 Block commit of eCos version 1.2.1
jlarmour
parents:
diff changeset
749 HAL_DCACHE_IS_ENABLED(state);
443894e2e912 Block commit of eCos version 1.2.1
jlarmour
parents:
diff changeset
750 #endif
443894e2e912 Block commit of eCos version 1.2.1
jlarmour
parents:
diff changeset
751
443894e2e912 Block commit of eCos version 1.2.1
jlarmour
parents:
diff changeset
752 return state;
443894e2e912 Block commit of eCos version 1.2.1
jlarmour
parents:
diff changeset
753 }
443894e2e912 Block commit of eCos version 1.2.1
jlarmour
parents:
diff changeset
754
443894e2e912 Block commit of eCos version 1.2.1
jlarmour
parents:
diff changeset
755 //-----------------------------------------------------------------------------
443894e2e912 Block commit of eCos version 1.2.1
jlarmour
parents:
diff changeset
756 // Memory accessor functions.
443894e2e912 Block commit of eCos version 1.2.1
jlarmour
parents:
diff changeset
757
112
02ea4320376c Merge from eCos master repository on 2000-07-21-21:01:39-BST
jlarmour
parents: 110
diff changeset
758 volatile void *__mem_fault_handler = (void *)0;
2
443894e2e912 Block commit of eCos version 1.2.1
jlarmour
parents:
diff changeset
759
443894e2e912 Block commit of eCos version 1.2.1
jlarmour
parents:
diff changeset
760 /* These are the "arguments" to __do_read_mem and __do_write_mem,
443894e2e912 Block commit of eCos version 1.2.1
jlarmour
parents:
diff changeset
761 which are passed as globals to avoid squeezing them thru
443894e2e912 Block commit of eCos version 1.2.1
jlarmour
parents:
diff changeset
762 __set_mem_fault_trap. */
443894e2e912 Block commit of eCos version 1.2.1
jlarmour
parents:
diff changeset
763
443894e2e912 Block commit of eCos version 1.2.1
jlarmour
parents:
diff changeset
764 static volatile target_register_t memCount;
443894e2e912 Block commit of eCos version 1.2.1
jlarmour
parents:
diff changeset
765
443894e2e912 Block commit of eCos version 1.2.1
jlarmour
parents:
diff changeset
766 static void
443894e2e912 Block commit of eCos version 1.2.1
jlarmour
parents:
diff changeset
767 __do_copy_mem (unsigned char* src, unsigned char* dst)
443894e2e912 Block commit of eCos version 1.2.1
jlarmour
parents:
diff changeset
768 {
34
29bc183297e1 Merge from eCos master repository on 1999-09-02-16:26:10-BST
jlarmour
parents: 30
diff changeset
769 unsigned long *long_dst;
29bc183297e1 Merge from eCos master repository on 1999-09-02-16:26:10-BST
jlarmour
parents: 30
diff changeset
770 unsigned long *long_src;
29bc183297e1 Merge from eCos master repository on 1999-09-02-16:26:10-BST
jlarmour
parents: 30
diff changeset
771 unsigned short *short_dst;
29bc183297e1 Merge from eCos master repository on 1999-09-02-16:26:10-BST
jlarmour
parents: 30
diff changeset
772 unsigned short *short_src;
29bc183297e1 Merge from eCos master repository on 1999-09-02-16:26:10-BST
jlarmour
parents: 30
diff changeset
773
29bc183297e1 Merge from eCos master repository on 1999-09-02-16:26:10-BST
jlarmour
parents: 30
diff changeset
774 __mem_fault = 1; /* Defaults to 'fail'. Is cleared */
29bc183297e1 Merge from eCos master repository on 1999-09-02-16:26:10-BST
jlarmour
parents: 30
diff changeset
775 /* when the copy loop completes. */
29bc183297e1 Merge from eCos master repository on 1999-09-02-16:26:10-BST
jlarmour
parents: 30
diff changeset
776 __mem_fault_handler = &&err;
29bc183297e1 Merge from eCos master repository on 1999-09-02-16:26:10-BST
jlarmour
parents: 30
diff changeset
777
29bc183297e1 Merge from eCos master repository on 1999-09-02-16:26:10-BST
jlarmour
parents: 30
diff changeset
778 // See if it's safe to do multi-byte, aligned operations
29bc183297e1 Merge from eCos master repository on 1999-09-02-16:26:10-BST
jlarmour
parents: 30
diff changeset
779 while (memCount) {
29bc183297e1 Merge from eCos master repository on 1999-09-02-16:26:10-BST
jlarmour
parents: 30
diff changeset
780 if ((memCount >= sizeof(long)) &&
29bc183297e1 Merge from eCos master repository on 1999-09-02-16:26:10-BST
jlarmour
parents: 30
diff changeset
781 (((target_register_t)dst & (sizeof(long)-1)) == 0) &&
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782 (((target_register_t)src & (sizeof(long)-1)) == 0)) {
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783
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784 long_dst = (unsigned long *)dst;
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785 long_src = (unsigned long *)src;
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786
34
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787 *long_dst++ = *long_src++;
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788 memCount -= sizeof(long);
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789
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790 dst = (unsigned char *)long_dst;
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791 src = (unsigned char *)long_src;
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792 } else if ((memCount >= sizeof(short)) &&
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793 (((target_register_t)dst & (sizeof(short)-1)) == 0) &&
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794 (((target_register_t)src & (sizeof(short)-1)) == 0)) {
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795
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796 short_dst = (unsigned short *)dst;
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797 short_src = (unsigned short *)src;
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798
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diff changeset
799 *short_dst++ = *short_src++;
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800 memCount -= sizeof(short);
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801
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802 dst = (unsigned char *)short_dst;
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803 src = (unsigned char *)short_src;
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804 } else {
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805 *dst++ = *src++;
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806 memCount--;
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807 }
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808 }
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809
34
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810 __mem_fault = 0;
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811
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812 err:
34
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813 __mem_fault_handler = (void *)0;
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814 }
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815
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816 /*
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817 * __read_mem_safe:
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818 * Get contents of target memory, abort on error.
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819 */
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820
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821 int
34
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822 __read_mem_safe (void *dst, void *src, int count)
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823 {
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824 memCount = count;
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825 __do_copy_mem((unsigned char*) src, (unsigned char*) dst);
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826 return count - memCount; // return number of bytes successfully read
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827 }
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828
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829 /*
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830 * __write_mem_safe:
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831 * Set contents of target memory, abort on error.
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832 */
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833
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834 int
34
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835 __write_mem_safe (void *src, void *dst, int count)
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836 {
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837 memCount = count;
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838 __do_copy_mem((unsigned char*) src, (unsigned char*) dst);
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839 return count - memCount; // return number of bytes successfully written
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840 }
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841
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842 //-----------------------------------------------------------------------------
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843 // Target extras?!
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844 int
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845 __process_target_query(char * pkt, char * out, int maxOut)
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846 { return 0 ; }
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847 int
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848 __process_target_set(char * pkt, char * out, int maxout)
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849 { return 0 ; }
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850 int
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851 __process_target_packet(char * pkt, char * out, int maxout)
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852 { return 0 ; }
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853
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854 // GDB string output, making sure interrupts are disabled.
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855 // This function gets used by some diag output functions.
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856 void
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857 hal_output_gdb_string(target_register_t str, int string_len)
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858 {
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859 unsigned long __state;
8
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860 HAL_DISABLE_INTERRUPTS(__state);
2
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861 __output_gdb_string(str, string_len);
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862 HAL_RESTORE_INTERRUPTS(__state);
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863 }
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864
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865 #endif // CYGDBG_HAL_DEBUG_GDB_INCLUDE_STUBS