Mercurial > nand-ecoscentric
annotate packages/hal/sparclite/arch/current/ChangeLog @ 3403:8c8767bb9a62 default tip
devs/nand/micron_mt29: Remove defunct references (in comments) to mt29f2g08_oob_ecc.
| author | Ross Younger <wry@ecoscentric.com> |
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| date | Sun, 18 Jan 2015 17:59:01 +1300 |
| parents | a6dd6b83222a |
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| rev | line source |
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* cdl/hal_sparclite.cdl: Eliminate some warnings. [ Bugzilla 1001083 ]
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1 2011-01-02 Sergei Gavrikov <sergei.gavrikov@gmail.com> |
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2 |
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3 * cdl/hal_sparclite.cdl: Eliminate some warnings. [ Bugzilla |
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4 1001083 ] |
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6 2004-04-22 Jani Monoses <jani@iv.ro> |
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7 |
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8 * cdl/hal_sparclite.cdl : |
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9 Invoke tail with stricter syntax that works in latest coreutils. |
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| 928 | 11 2003-04-10 Nick Garnett <nickg@balti.calivar.com> |
| 12 | |
| 13 * src/sparclite.ld: | |
| 14 Added libsupc++.a to GROUP() directive for GCC versions later than | |
| 15 3.0. | |
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17 2002-04-29 Jonathan Larmour <jlarmour@redhat.com> |
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18 |
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19 * src/vectors.S: |
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20 * src/vec_xvsr.S: |
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21 * src/vec_ivsr.S: |
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22 Don't use .file as it can confuse debugging since the .file |
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23 doesn't contain the path and therefore the debugger will never |
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24 know where it lives! This conflicts with using -Wa,--gstabs. |
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26 2000-10-16 Jonathan Larmour <jlarmour@redhat.com> |
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27 |
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28 * include/hal_arch.h (CYGARC_JMP_BUF_SIZE): Define hal_jmp_buf in |
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29 terms of this. |
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31 2000-08-07 Jonathan Larmour <jlarmour@redhat.co.uk> |
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32 |
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33 * src/sparclite.ld: Remove extra underscore from below. It was |
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34 correct before. |
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35 |
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36 2000-06-21 Nick Garnett <nickg@cygnus.co.uk> |
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37 |
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38 * include/basetype.h: |
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39 Removed definition of CYG_LABEL_NAME(). Now dealt with by default |
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40 definition in cyg_type.h. |
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41 |
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42 * src/sparclite.ld: |
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43 Added extra underscore to _stext and _etext. |
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44 Switched over to new table creation mechanism. |
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46 2000-06-08 Jesper Skov <jskov@redhat.com> |
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47 |
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48 * include/hal_arch.h (CYGARC_HAL_SAVE_GP, CYGARC_HAL_RESTORE_GP): |
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49 Added. |
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51 2000-02-16 Jesper Skov <jskov@redhat.com> |
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52 |
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53 * src/vectors.S: |
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54 * src/hal_boot.c: |
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55 CYG_HAL_SPARCLITE_ > CYGPKG_HAL_SPARCELITE_ |
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57 2000-02-16 Jesper Skov <jskov@redhat.com> |
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59 * cdl/hal_sparclite.cdl: removed fix me |
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61 2000-01-28 Gary Thomas <gthomas@cygnus.co.uk> |
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63 * src/sparclite.ld: Add support for network package. |
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65 2000-01-19 Hugo Tyson <hmt@cygnus.co.uk> |
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67 * cdl/*.cdl: Add descriptions to a number of options &c which were |
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68 lacking same, also tidied up other typos as noticed en passant. |
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69 |
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70 1999-12-02 John Dallaway <jld@cygnus.co.uk> |
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72 * cdl/hal_sparclite.cdl: |
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73 |
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74 Use the <PACKAGE> token in custom rules. |
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75 |
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76 1999-12-01 John Dallaway <jld@cygnus.co.uk> |
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78 * cdl/hal_sparclite.cdl: |
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79 |
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80 Use the <PREFIX> token in custom rules. |
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81 |
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82 1999-11-04 John Dallaway <jld@cygnus.co.uk> |
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83 |
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84 * cdl/hal_sparclite.cdl: |
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85 |
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86 Output custom rule dependency information to .deps files in |
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87 the current directory. |
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88 |
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89 Dispense with the need to create a 'src' sub-directory. |
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91 1999-11-03 John Dallaway <jld@cygnus.co.uk> |
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93 * cdl/hal_sparclite.cdl: Define build options. |
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95 1999-11-01 Jesper Skov <jskov@cygnus.co.uk> |
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97 * cdl/hal_sparclite.cdl: Addded. |
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99 1999-10-15 Hugo Tyson <hmt@cygnus.co.uk> |
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100 |
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101 * src/vectors.S (not_window_overflow): Actually the dispatcher |
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102 into exception VSRs. Bugfix: wrong number was placed in %l3 for |
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103 call to xvsr, so for *some* types of trap, including user traps |
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104 other than those handled directly in-HAL, a vector way off the end |
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105 of the array would be used. Apparently those other types of trap |
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106 never happen, but just in case... |
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107 |
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108 1999-10-13 Hugo Tyson <hmt@cygnus.co.uk> |
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109 |
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110 * src/vectors.S: Optionally implement Multiple (rather than |
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111 Single) Vector Trapping. The config options to control this are |
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112 in the platform HAL because some SPARCs do not support SVT, where |
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113 it is optional the platform says so. This demands a variable |
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114 sized region be reserved for trampoline code or the vectors in |
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115 RAM, which is done via section .ram_vectors, defined herein. |
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116 |
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117 * src/sparclite.ld: Define SECTION_ram_vectors(...) to deal with |
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118 the new .ram_vectors section. This is to provide a variable sized |
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119 area at the start of RAM to hold either trampoline code when SVT |
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120 is selected, or a fill 4k + handlers of vectors when MVT is |
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121 selected. Previously this was bodged by pretending RAM starts at |
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122 0x4000200 in ROM startup builds. |
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123 (comment from the example .ldi files...) |
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124 The ram_vectors section is to allow some free space to copy |
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125 vectors into from the ROM. This is required to be variable size |
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126 to accomodate SVT or MVT; 80 bytes vs 4kB. Copying is not |
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127 necessary with MVT, but it is optional because it may offer |
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128 performance gains. Copying is required for SVT because the |
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129 (aligned) start of ROM contains initialization instructions. RAM |
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130 copy is used rather than leave a big gap in the ROM to get an |
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131 aligned address for the trampoline code. For RAM startup, |
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132 ram_vectors will usually be of size zero, unless MVT and copying |
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133 are enabled for memory estimation reasons. |
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134 |
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135 1999-09-29 Hugo Tyson <hmt@cygnus.co.uk> |
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136 |
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137 [src/vectors.S: needed no change!] |
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138 |
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139 * include/vectors.h: Potentially accept a register window count |
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140 from the platform HAL, or according to platform selection. Make |
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141 more of the dependent macros computed. |
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142 |
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143 * src/vec_ivsr.S (hal_default_interrupt_vsr): Handle other register |
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144 window sizes correctly; particularly when handling underflow trap |
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145 by hand. |
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146 |
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147 * src/vec_xvsr.S (hal_default_exception_vsr): Handle other register |
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148 window sizes correctly; particularly when handling underflow trap |
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149 by hand. |
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150 |
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151 * src/context.S (hal_thread_load_context): Handle other register |
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152 window sizes correctly. |
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153 |
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154 * src/icontext.c (cyg_hal_sparc_get_gdb_regs): Handle other register |
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155 window sizes correctly; set up initial context differently. |
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156 |
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157 1999-06-07 Hugo Tyson <hmt@cygnus.co.uk> |
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158 |
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159 * include/hal_arch.h (hal_jmp_buf): force this to be 64-bit |
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160 aligned so that std ops in hal_setjmp(), hal_longjmp() work. |
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161 |
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162 1999-06-03 Hugo Tyson <hmt@cygnus.co.uk> |
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163 |
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164 * src/hal_boot.c: Add a dummy __gccmain() to prevent ctors being |
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165 called twice. This seems to be a recent compiler change: |
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166 [from gcc/ChangeLog] |
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167 Sat May 22 18:18:43 1999 Jason Merrill <jason@yorick.cygnus.com> |
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168 * sparc/liteelf.h: Handle ctors like MIPS crosses. |
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169 * sparc/lite.h (STARTFILE_SPEC, LIB_SPEC): Define to "". |
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170 * configure.in: Don't use libgloss.h on sparclite-elf. |
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171 Use collect2 on sparclite-aout. |
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172 |
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173 1999-05-20 Hugo Tyson <hmt@cygnus.co.uk> |
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174 |
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175 * include/hal_intr.h (HAL_INTERRUPT_STACK_CALL_PENDING_DSRS): |
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176 Define this if CYGIMP_HAL_COMMON_INTERRUPTS_USE_INTERRUPT_STACK; |
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177 ie. we are running a separate interrupt stack. Also define |
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178 symbols for it so that we can monitor its usage easily. |
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179 |
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180 * src/vec_ivsr.S (hal_interrupt_stack_call_pending_DSRs): Add this |
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181 function to run DSRs on the interrupt stack (if using it). Switch |
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182 over to executing on the interrupt stack when needed. |
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183 |
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184 * src/vectors.S (cyg_interrupt_stack_base): Define the interrupt |
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185 stack either if we need it as an interrupt stack or if we need it |
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186 as a bootup stack (simulator); if it's there, use it as a bootup |
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187 stack anyway. |
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188 |
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189 * src/context.S (hal_thread_load_context): Install the PSR that |
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190 was saved in its entirety, including the interrupt and trap enable |
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191 state. This is needed for running a separate interrupt stack, but |
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192 harmless when not so doing. |
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193 |
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194 * src/icontext.c (hal_thread_init_context): Install an initial PSR |
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195 which includes ET, S and PS (Enable traps, Supermode, prevSuper) |
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196 and a PIL (processor interrupt level) of 15 (maximum) |
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197 so that a context switch which preserves interrupt mode will work. |
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198 |
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199 1999-05-13 Hugo Tyson <hmt@cygnus.co.uk> |
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200 |
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201 * include/hal_arch.h (HAL_THREAD_INIT_CONTEXT): Align stack |
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202 (rather conservatively) before use. |
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203 |
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204 1999-04-28 Bart Veer <bartv@cygnus.co.uk> |
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205 |
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206 * src/PKGconf.mak: |
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207 Remove the -n argument to tail, it does not appear to be required |
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208 on any supported host and causes problems with some |
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209 implementations of tail. |
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210 |
| 2 | 211 1999-04-15 Jonathan Larmour <jlarmour@cygnus.co.uk> |
| 212 | |
| 213 * src/sparclite.ld: Define __bss_end at the end of the BSS | |
| 214 * src/hal_boot.c (hal_zero_bss): Stop at __bss_end rather than _end | |
| 215 when clearing BSS | |
| 216 | |
| 217 These fix PR 19750 | |
| 218 | |
| 219 1999-04-14 Jonathan Larmour <jlarmour@cygnus.co.uk> | |
| 220 | |
| 221 * src/PKGconf.mak (EXTRAS): Don't generate extras.o here any more | |
| 222 But do define EXTRAS every time for the linker script. | |
| 223 | |
| 224 1999-04-09 Hugo Tyson <hmt@cygnus.co.uk> | |
| 225 | |
| 226 * include/hal_intr.h (HAL_RESTORE_INTERRUPTS et al): Put in 3 nops | |
| 227 after any writes to the psr; TBH I don't think they're strictly | |
| 228 necessary when not altering the window state, but for complete | |
| 229 safety and adherence to the book of words.... | |
| 230 | |
| 231 1999-04-08 John Dallaway <jld@cygnus.co.uk> | |
| 232 | |
| 233 * src/*.ld: Revised SECTION_* macro arguments to | |
| 234 avoid padded output sections (PR 19787) | |
| 235 | |
| 236 1999-04-07 Hugo Tyson <hmt@cygnus.co.uk> | |
| 237 | |
| 238 * include/hal_io.h: If not the simulator, get hal_hwio.h too - | |
| 239 which describes board-and-CPUvariant-specific IO needs. | |
| 240 | |
| 241 1999-04-07 Hugo Tyson <hmt@cygnus.co.uk> | |
| 242 | |
| 243 * include/hal_intr.h (HAL_VSR_SET_TO_ECOS_HANDLER): Define this | |
| 244 macro for use in tests that are interested in exception diddling. | |
| 245 Redefine CYGNUM_HAL_ISR_MIN to describe the number of interrupt | |
| 246 sources; while there are XSRs too, this definition is better for | |
| 247 the error checking in kernel interrupt stuff. Changed the symbols | |
| 248 used for defining tables sizes to match, since there are still 27 | |
| 249 VSRs and ISRs/XSRs and their data. | |
| 250 | |
| 251 * src/hal_intr.c: Use the correct symbol for the size of the | |
| 252 isr/vsr/their-data tables. | |
| 253 | |
| 254 1999-03-26 Hugo Tyson <hmt@cygnus.co.uk> | |
| 255 | |
| 256 * tests/sparc_ex.c (cyg_[user_]start): | |
| 257 If there is no kernel, cyg_user_start() is never called, main gets | |
| 258 in and steals the CPU. So we hang. So if there is no kernel, | |
| 259 define cyg_start() instead to wrest control. | |
| 260 | |
| 261 1999-03-22 Hugo Tyson <hmt@cygnus.co.uk> | |
| 262 | |
| 263 * include/hal_arch.h (CYGNUM_HAL_STACK_SIZE_TYPICAL): | |
| 264 And this time make the edit correctly ;-/ | |
| 265 | |
| 266 1999-03-22 Hugo Tyson <hmt@cygnus.co.uk> | |
| 267 | |
| 268 * include/hal_arch.h: | |
| 269 Use CYGNUM_HAL_STACK_SIZE_TYPICAL for the stack size instead of | |
| 270 CYGNUM_HAL_MINIMUM_STACK_SIZE. | |
| 271 | |
| 272 1999-03-17 Hugo Tyson <hmt@cygnus.co.uk> | |
| 273 | |
| 274 * src/vectors.S (rom_vectors_end, rom_vectors): Add two new | |
| 275 symbols for copying trampoline code into RAM in ROM startup. This | |
| 276 keeps ROM startup as similar as possible to RAM, for simplicity; | |
| 277 no re-ordering of vectors.S's contents. | |
| 278 | |
| 279 * src/hal_boot.c (hal_copy_data): Copy in long sized units rather | |
| 280 than long longs, better to cope with ROM data alignment. | |
| 281 Also add some LED output (if SLEB hardware) for startup to help | |
| 282 with debugging ROM start. | |
| 283 | |
| 284 1999-03-17 John Dallaway <jld@cygnus.co.uk> | |
| 285 | |
| 286 * src/PKGconf.mak: Remove dependence on echo '-e' switch. | |
| 287 | |
| 288 1999-03-16 Hugo Tyson <hmt@cygnus.co.uk> | |
| 289 | |
| 290 * src/vectors.S (genuine_reset): Add a little extra debug to SLEB | |
| 291 LEDs, and use the genuine top-of-memory stack when running on | |
| 292 hardware; only define cyg_bootup_stack in the simulator case. | |
| 293 | |
| 294 * src/sparclite.ld: Define rom_data_start, regardless of start | |
| 295 type, no harm is done. | |
| 296 | |
| 297 1999-03-12 Gary Thomas <gthomas@cygnus.co.uk> | |
| 298 | |
| 299 * include/pkgconf/hal_sparclite.h: | |
| 300 * include/hal_arch.h: Moved definition of 'CYGNUM_HAL_MINIMUM_STACK_SIZE' | |
| 301 | |
| 302 1999-03-11 Hugo Tyson <hmt@cygnus.co.uk> | |
| 303 | |
| 304 * src/icontext.c (cyg_hal_sparc_[gs]et_gdb_regs): | |
| 305 Two new routines to communicate our nice, optimized stack save | |
| 306 states to a reg list for GDB. My maximal register saves are not | |
| 307 really suitable for passing to GDB in any case, they're for humans | |
| 308 to debug the interrupt code more than anything else, and my | |
| 309 minimal save sets naturally contain pointers and ways of finding | |
| 310 the rest of the reg set, but it depends on whether it's an | |
| 311 interrupt save or a synchronous one, and given the SPARClite's | |
| 312 stack layout, it's a bit hairy. | |
| 313 | |
| 314 * src/vec_ivsr.S (hal_default_interrupt_vsr): | |
| 315 Do save %g0 even in a minimal context, so that the code for | |
| 316 communicating register state with GDB can tell it's a minimum | |
| 317 context. Costs one store cycle per interrupt. | |
| 318 | |
| 319 * include/hal_arch.h (HAL_[GS]ET_GDB_REGISTERS): | |
| 320 Define and call routines cyg_hal_sparc_[gs]et_gdb_regs for | |
| 321 communicating register state of a thread to GDB. | |
| 322 | |
| 323 * src/vectors.S (real_vector): Reinstate the anullment of the | |
| 324 instructions that were blamed for register corruption earlier; | |
| 325 they are correct and safe. | |
| 326 | |
| 327 1999-03-10 Jesper Skov <jskov@cygnus.co.uk> | |
| 328 | |
| 329 * include/hal_intr.h (HAL_INTERRUPT_IN_USE): Added. | |
| 330 | |
| 331 1999-03-09 Gary Thomas <gthomas@cygnus.co.uk> | |
| 332 | |
| 333 * src/hal_boot.c: Added missing <cyg/infra/cyg_type.h> include file. | |
| 334 | |
| 335 1999-03-05 Gary Thomas <gthomas@cygnus.co.uk> | |
| 336 | |
| 337 * src/sparclite.ld: | |
| 338 * src/PKGconf.mak: Clean up I/O package changes. | |
| 339 | |
| 340 1999-03-04 Jonathan Larmour <jlarmour@cygnus.co.uk> | |
| 341 | |
| 342 * src/sparclite.ld: | |
| 343 Unconditionalize use of libextras.a and add to GROUP() | |
| 344 | |
| 345 1999-03-04 Gary Thomas <gthomas@cygnus.co.uk> | |
| 346 | |
| 347 * src/PKGconf.mak: | |
| 348 * src/sparclite.ld: New I/O package support. | |
| 349 | |
| 350 * src/vectors.S: Fix register corruption problem - stems from | |
| 351 use of annulled instructions in window overflow/underflow code. | |
| 352 | |
| 353 1999-02-25 Hugo Tyson <hmt@cygnus.co.uk> | |
| 354 | |
| 355 These log entries from 1999-02-22 to 1999-02-24 were executed in | |
| 356 a branch; this change is a merge of that branch into the trunk. | |
| 357 | |
| 358 (1999-02-24 Hugo Tyson <hmt@cygnus.co.uk>) | |
| 359 | |
| 360 * tests/sparc_ex.c (sparc_ex_main): | |
| 361 For all traps except the USER_TRAP, install the default VSR | |
| 362 hal_default_exception_vsr(); this is so that this test catches | |
| 363 exception ie. is able to work, even when we are playing nice with | |
| 364 CygMon and GDB. The USER_TRAP is left so that breakpoints work, | |
| 365 for the test infrastructure. | |
| 366 | |
| 367 (1999-02-22 Hugo Tyson <hmt@cygnus.co.uk>) | |
| 368 | |
| 369 * src/vectors.S (real_vector): Remove old testing code. Add delay | |
| 370 NOPs after writes to %wim and %psr for safety. Leave installing | |
| 371 the trap vector to platform-specific code, along with RAM control | |
| 372 and cache initialization. | |
| 373 | |
| 374 * src/vec_ivsr.S (hal_default_interrupt_vsr): Add delay NOPs after | |
| 375 writing the %wim before doing a restore; that was a bug that was. | |
| 376 | |
| 377 * src/vec_xvsr.S (hal_default_exception_vsr): same change. | |
| 378 | |
| 379 * src/hal_intr.c: Remove platform-specific clock period variable; it | |
| 380 happens that both platforms sim and sleb have one, but it's not a | |
| 381 requirement of the target architecture. | |
| 382 | |
| 383 * src/hal_boot.c (cyg_hal_start): Move diddling the sim-specific | |
| 384 watchdog into platform-specific startup code viz. new routines | |
| 385 hal_board_{pre/post}start(). | |
| 386 | |
| 387 * src/context.S: a couple of extra NOPs to ensure that %wim and | |
| 388 %psr changes work on real hardware. | |
| 389 | |
| 390 (1999-02-22 Hugo Tyson <hmt@cygnus.co.uk>) | |
| 391 | |
| 392 * include/hal_arch.h (HAL_SET_GDB_REGISTERS): | |
| 393 Remove warning about unused var 'cos of the incompleteness of | |
| 394 these macros; gdb interworking is not yet supported. | |
| 395 | |
| 396 1999-02-25 Nick Garnett <nickg@cygnus.co.uk> | |
| 397 | |
| 398 * include/vectors.h: | |
| 399 Changed label used to access scheduler lock to one that is not | |
| 400 mangled by C++. This is intended to make support for interrupt | |
| 401 handling in non-kernel configurations easier. | |
| 402 | |
| 403 1999-02-20 Jonathan Larmour <jlarmour@cygnus.co.uk> | |
| 404 | |
| 405 * include/hal_arch.h: | |
| 406 Rename deliver_exception() -> cyg_hal_deliver_exception() | |
| 407 QA improvements | |
| 408 | |
| 409 * include/hal_intr.h: | |
| 410 Reorganise vector/interrupt/exception names according to purpose | |
| 411 Rename exception_handler() -> cyg_hal_exception_handler() | |
| 412 QA improvements | |
| 413 | |
| 414 * src/hal_intr.c: | |
| 415 Rename exception_handler() -> cyg_hal_exception_handler() | |
| 416 Rename deliver_exception() -> cyg_hal_deliver_exception() | |
| 417 Rename CYG_ISR_COUNT -> CYGNUM_HAL_ISR_COUNT | |
| 418 QA improvements | |
| 419 | |
| 420 * src/vec_ivsr.S: | |
| 421 * src/vec_xvsr.S: | |
| 422 Rename CYG_ISR_COUNT -> CYGNUM_HAL_ISR_COUNT | |
| 423 QA improvements | |
| 424 | |
| 425 * tests/sparc_ex.c: | |
| 426 Rename CYG_EXCEPTION_* -> CYGNUM_HAL_EXCEPTION_* | |
| 427 Rename CYG_VECTOR_UNALIGNED -> CYGNUM_HAL_VECTOR_UNALIGNED | |
| 428 | |
| 429 1999-02-12 Hugo Tyson <hmt@cygnus.co.uk> | |
| 430 | |
| 431 * src/context.S (hal_thread_load_context, hal_setjmp): | |
| 432 Disable interrupts (but not traps) while doing the flush of all my | |
| 433 callers and their callers' callers register sets to the stack. | |
| 434 There is evidence that the inconsistency in the stack during this | |
| 435 is a bad thing, though I have to admit that I don't see exactly | |
| 436 how it goes wrong. Partly, it's impossible to debug, so if the | |
| 437 problem I saw (a SEGV in instrumentation of interrupt_end()) is | |
| 438 reproduced with this change, I'll have more to go on. This is a | |
| 439 conservative change in that sense. | |
| 440 | |
| 441 * include/hal_arch.h (HAL_FLUSH_REGISTERS_TO_STACK): | |
| 442 Disable interrupts but not traps while doing this. Ditto. | |
| 443 | |
| 444 1999-02-12 Hugo Tyson <hmt@cygnus.co.uk> | |
| 445 | |
| 446 * include/pkgconf/hal_sparclite.h (CYGNUM_HAL_MINIMUM_STACK_SIZE): | |
| 447 Define a minimal sensible stack size for apps to use. Note that | |
| 448 this file is included by hal_arch.h and so is available to all HAL | |
| 449 users, and in fact almost everyone by default. | |
| 450 | |
| 451 1999-02-12 Hugo Tyson <hmt@cygnus.co.uk> | |
| 452 | |
| 453 * src/hal_intr.c (exception_handler): | |
| 454 Include <cyg/infra/cyg_ass.h> so that the CYG_FAIL() in some | |
| 455 configurations actually compiles (actually: links). | |
| 456 combo{22,18,10,6} were thus afflicted. | |
| 457 | |
| 458 1999-02-11 Hugo Tyson <hmt@cygnus.co.uk> | |
| 459 | |
| 460 * tests/sparc_ex.c (do_test): Make the test run for much less time | |
| 461 when CYG_USE_TRACING and in any case bleat periodically about how | |
| 462 successful it is to prevent testing system timeouts. Also move | |
| 463 the test routines (those which provoke the exception) to the end | |
| 464 so that (ever helpful) -O3 cannot inline them and then "optimize" | |
| 465 the result and thus spoil the whole damned test too. | |
| 466 | |
| 467 1999-02-08 John Dallaway <jld@cygnus.co.uk> | |
| 468 | |
| 469 * include/pkgconf/hal_sparclite.h: Correct capitalization of | |
| 470 'SPARClite'. | |
| 471 | |
| 472 1999-02-08 John Dallaway <jld@cygnus.co.uk> | |
| 473 | |
| 474 * src/sparclite.ld: New MLT-compatible linker script | |
| 475 * src/PKGconf.mak: Add build rules for sparclite.ld | |
| 476 | |
| 477 1999-02-04 Hugo Tyson <hmt@cygnus.co.uk> | |
| 478 | |
| 479 * src/vec_ivsr.S (hal_default_interrupt_vsr): Preserve global | |
| 480 registers over interrupts, and implement support for | |
| 481 CYGDBG_HAL_COMMON_INTERRUPTS_SAVE_MINIMUM_CONTEXT ie. save a | |
| 482 minimal register set rather than a maximal. Create a saved | |
| 483 register set whose address is passed to the interrupt handler | |
| 484 (though it may well be mostly empty). | |
| 485 [also tidied up trailing tabs and long blank lines] | |
| 486 | |
| 487 * src/vec_xvsr.S (hal_default_exception_vsr): Preserve all | |
| 488 registers over interrupts; create a saved register set whose | |
| 489 address is passed to the exception handler so it can modify it. | |
| 490 [also tidied up trailing tabs and long blank lines] | |
| 491 | |
| 492 * src/context.S( hal_setjmp, hal_longjmp): | |
| 493 (hal_thread_switch_context,hal_thread_load_context): Implement | |
| 494 CYGDBG_HAL_COMMON_CONTEXT_SAVE_MINIMUM support; ie. save a minimal | |
| 495 register set rather than a maximal. | |
| 496 | |
| 497 * include/hal_arch.h (HAL_FLUSH_REGISTERS_TO_STACK): New macro | |
| 498 useful for writing exception handlers, for example. | |
| 499 (HAL_GET_GDB_REGISTERS, HAL_SET_GDB_REGISTERS): provided initial | |
| 500 dummy versions of these. | |
| 501 | |
| 502 * tests/sparc_ex.c: A test of the exception mechanism: | |
| 503 deliberately cause unaligned accesses of various sizes and check | |
| 504 we get exactly one trap and correctly step over it by modifying | |
| 505 the saved register set whose address the exception ISR is handed. | |
| 506 This test should be regarded as documentation for the exception | |
| 507 handler API/ABI. | |
| 508 | |
| 509 * tests/PKGconf.mak (TESTS): Build sparc_ex. | |
| 510 | |
| 511 1999-02-01 Hugo Tyson <hmt@cygnus.co.uk> | |
| 512 | |
| 513 * src/vectors.S (genuine_reset): | |
| 514 Include <cyg/hal/halboot.si> to set up RAM controllers, cache and | |
| 515 the like - this is rather platform dependant. | |
| 516 | |
| 517 1999-02-01 Hugo Tyson <hmt@cygnus.co.uk> | |
| 518 | |
| 519 * include/hal_intr.h (HAL_TRANSLATE_VECTOR): | |
| 520 Include a definition of this important macro. Not. | |
| 521 It's used when interrupt chaining is selected, BUT we the HAL make | |
| 522 no distinction, it's up to the kernel to look after things. So | |
| 523 this macro is an assignment. | |
| 524 | |
| 525 1999-01-28 Hugo Tyson <hmt@cygnus.co.uk> | |
| 526 | |
| 527 * include/hal_intr.h: | |
| 528 Get interrupt controller definitions from a board-specific file: | |
| 529 #include <cyg/hal/hal_xpic.h> | |
| 530 Get clock control definitions from a board-specific file: | |
| 531 #include <cyg/hal/hal_clock.h> | |
| 532 Delete the original definitions from this central file. | |
| 533 | |
| 534 * include/hal_cache.h: REMOVED to the simulator tree in the first | |
| 535 instance; more generally to various board-specific files. | |
| 536 | |
| 537 | |
| 538 1999-01-26 Hugo Tyson <hmt@cygnus.co.uk> | |
| 539 | |
| 540 * include/hal_cache.h (HAL_DCACHE_ENABLE) (and its friends): | |
| 541 Define initial empty placeholder versions of these so that cache | |
| 542 tests build. Well it's a start. | |
| 543 | |
| 544 1999-01-21 Jonathan Larmour <jlarmour@cygnus.co.uk> | |
| 545 | |
| 546 * src/hal_boot.c (cyg_hal_invoke_constructors): | |
| 547 Add code to deal with CYGSEM_HAL_STOP_CONSTRUCTORS_ON_FLAG | |
| 548 Tidy up and update description header | |
| 549 Shorten needlessly long lines | |
| 550 Remove all traces of non-CYG_KERNEL_USE_INIT_PRIORITY code | |
| 551 | |
| 552 1999-01-21 Hugo Tyson <hmt@cygnus.co.uk> | |
| 553 | |
| 554 * src/vectors.S (genuine_reset): Set the RAM size to 4MB in the | |
| 555 erc32 simulator. | |
| 556 | |
| 557 * include/hal_io.h: New file; macros to access IO space, really a | |
| 558 place holder at present. | |
| 559 | |
| 560 * include/hal_intr.h: Do not define WATCHDOG() macro. | |
| 561 | |
| 562 * src/hal_intr.c (hal_default_isr): Do not mess with the watchdog | |
| 563 in the the default interrupt handler. | |
| 564 | |
| 565 * src/hal_boot.c (hal_zero_bss): use an efficient 8-byte zero. | |
| 566 (hal_copy_data): use an efficient 8-byte copy. | |
| 567 (cyg_hal_start): turn off the ERC32 watchdog timer before we start | |
| 568 anything very time consuming. | |
| 569 | |
| 570 NB: the 8-byte copy changes require alignment in the linker | |
| 571 script: see the Changelog in hal/sparclite/sim/... for details. | |
| 572 | |
| 573 1999-01-19 Hugo Tyson <hmt@cygnus.co.uk> | |
| 574 | |
| 575 Modified files in arch: | |
| 576 * include/hal_arch.h | |
| 577 * include/hal_intr.h | |
| 578 * src/PKGconf.mak | |
| 579 * src/context.S | |
| 580 * src/hal_intr.c | |
| 581 * src/vec_ivsr.S | |
| 582 * src/vec_xvsr.S | |
| 583 * src/vectors.S | |
| 584 | |
| 585 New files in arch: | |
| 586 * src/hal_boot.c (bss initialization, constructors &c) | |
| 587 * include/hal_cache.h (empty but required header) | |
| 588 | |
| 589 Modified files in sim: | |
| 590 * include/hal_diag.h | |
| 591 | |
| 592 Lots more progress; essentially, everything now works. | |
| 593 | |
| 594 Simulator's treatment of stdio is poor though, it doesn't work | |
| 595 under pkgtest. This has been slowing me up. | |
| 596 | |
| 597 1999-01-14 Hugo Tyson <hmt@cygnus.co.uk> | |
| 598 | |
| 599 * ecc/ecc/hal/sparclite/...: | |
| 600 | |
| 601 Initial checkin of SPARClite HAL; it doesn't work yet, except the | |
| 602 most trivial of tests - timer and interrupt manipulation stuff is | |
| 603 entirely absent. | |
| 604 | |
| 605 Here's some documentation of the initial checkin tree; this will | |
| 606 change, as platform dependent stuff moves correctly into the sim | |
| 607 or <board> directories. | |
| 608 | |
| 609 arch/current/include: | |
| 610 basetype.h nothing much here. | |
| 611 vectors.h definitions of symbols shared between the | |
| 612 various vector code assembler files, can be | |
| 613 included in both C and assembler. | |
| 614 hal_intr.h various macros for clock and interrupt | |
| 615 control plus the eCos vector numbering scheme; we | |
| 616 map thus: | |
| 617 what SPARC trap type eCos vector numbers | |
| 618 ----------------------------------------------- | |
| 619 (not used) --- 0 | |
| 620 interrupts (17-31) 1-15 | |
| 621 user traps (128-255) 16 | |
| 622 exceptions (1-9,36==4) 17-25 | |
| 623 others (10,?) 26 | |
| 624 ----------------------------------------------- | |
| 625 Trap types 5 and 6 which would be eCos vectors 21 | |
| 626 and 22 are handled in the trampoline code in | |
| 627 file src/vectors.S | |
| 628 hal_arch.h definition of a thread context, plus | |
| 629 macros for thread switching and the like. Some | |
| 630 ancillary bit twiddling macros and cache barriers | |
| 631 too. | |
| 632 | |
| 633 arch/current/include/pkgconf: | |
| 634 hal_sparclite.h pkgconf config/header file. | |
| 635 | |
| 636 arch/current/src: | |
| 637 vectors.S boot-up stuff, trampoline code that hangs | |
| 638 on the interrupt/trap vector, handlers for window | |
| 639 under/overflow. Saves some state in registers | |
| 640 then jumps to the interrupt or exception VSR | |
| 641 respectively. | |
| 642 Also instantiates the VSR table. | |
| 643 vec_ivsr.S the default interrupt VSR; it establishes | |
| 644 a C calling environment (ie. anticipates a window | |
| 645 overflow) then locks the scheduler, calls the ISR | |
| 646 with appropriate arguments, and then interrupt_end() | |
| 647 before undoing that environment, anticipating | |
| 648 window underflow and returning to the interrupted | |
| 649 instruction. | |
| 650 vec_xvsr.S the default exception AKA trap VSR; does | |
| 651 the same as the interrupt one but without the | |
| 652 scheduler lock or interrupt end. | |
| 653 hal_intr.c instantiates the ISR table used by the | |
| 654 code above. | |
| 655 context.S context switch code, saves and loads up a | |
| 656 whole register state, coroutine or longjump-like. | |
| 657 icontext.c initializes a context to "jump" to in | |
| 658 context.S at the birth of a new thread. | |
| 659 | |
| 660 sim/current/include: | |
| 661 hal_diag.h macros to deal with debugging output via a | |
| 662 fake serial device of some kind; initially empty, | |
| 663 but definitely board/sim dependent. | |
| 664 | |
| 665 sim/current/include/pkgconf: | |
| 666 hal_sparclite_sim.h pkgconf config/header file. | |
| 667 | |
| 668 sim/current/src: | |
| 669 sim.ld linker script bits for "sim" target. | |
| 670 | |
| 671 //=========================================================================== | |
|
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672 // ####GPLCOPYRIGHTBEGIN#### |
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673 // ------------------------------------------- |
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674 // This file is part of eCos, the Embedded Configurable Operating System. |
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675 // Copyright (C) 1998, 1999, 2000, 2001, 2002 Free Software Foundation, Inc. |
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676 // |
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677 // This program is free software; you can redistribute it and/or modify |
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678 // it under the terms of the GNU General Public License as published by |
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679 // the Free Software Foundation; either version 2 or (at your option) any |
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680 // later version. |
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681 // |
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682 // This program is distributed in the hope that it will be useful, but |
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683 // WITHOUT ANY WARRANTY; without even the implied warranty of |
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684 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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685 // General Public License for more details. |
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686 // |
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687 // You should have received a copy of the GNU General Public License |
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688 // along with this program; if not, write to the |
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689 // Free Software Foundation, Inc., 51 Franklin Street, |
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690 // Fifth Floor, Boston, MA 02110-1301, USA. |
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691 // ------------------------------------------- |
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692 // ####GPLCOPYRIGHTEND#### |
| 2 | 693 //=========================================================================== |
| 694 | |
| 695 //EOF ChangeLog |