Mercurial > hg > aboriginal
annotate www/news.html @ 523:f2b7db2e4315 0.9.5
Announce 0.9.5 release.
author | Rob Landley <rob@landley.net> |
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date | Tue, 02 Dec 2008 11:50:51 -0600 |
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1 <!--#include file="header.html" --> |
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2 <b><h1>News</h1></b> |
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3 |
523 | 4 <!-- |
5 <h2>December 3, 2008</h2> | |
6 <p>After several false starts (I.E. last minute bugs, yes I test this thing | |
7 before shipping it), | |
8 <a href=downloads/firmware-0.9.5.tar.bz2>Version 0.9.5</a> is out, inching | |
9 towards a 1.0 release. Lots of new work this time.</p> | |
10 | |
11 <p>The biggest news is uClibc 0.9.30 and uClibc++ 0.2.2. The native toolchain | |
12 now supports C++, hooked up to distcc and everything.</p> | |
13 | |
14 <p>The <a href=documentation.html>documentation</a> has been extensively | |
15 rewritten. (There's always more to do, but most of it isn't horribly out | |
16 of date anymore.)</p> | |
17 | |
18 <p>The packaging stage now uses genext2fs instead of User Mode Linux, so | |
19 the most brittle part of the build has been removed. FWL can now fully | |
20 rebuild itself under itself, all the way through the packaging stage.</p> | |
21 | |
22 <p>My personal website's getting a touch overwhelmed, so a higher bandwidth | |
23 site is now available at | |
24 <a href=http://impactlinux.com/fwl>impactlinux.com</a>. This should become | |
25 the new primary website going forward.</p> | |
26 | |
27 <p>BusyBox has also been upgraded (to 1.13.0), and the new USE_UNSTABLE | |
28 infrastructure allows test versions of any package to be downloaded and built | |
29 without forking the build scripts, so future package upgrades can be dealt | |
30 with as side projects without blocking other important work.</p> | |
31 | |
32 <p>The packaging stage now uses genext2fs instead of User Mode Linux, so | |
33 the most brittle part of the build has been removed. FWL can now fully | |
34 rebuild itself under itself, all the way through the packaging stage.</p> | |
35 | |
36 <p>The old forkbomb script has been replaced with sources/build-all-targets.sh. | |
37 with an argument --fork to build all targets in parallel, and "--fork 3" | |
38 to limit the parallelism. This script can run from a cron job, producing | |
39 a "buildall" directory with tarballs, compressed logs, and a README file | |
40 listing the version of each package. The environment variable USE_STATIC_HOST | |
41 specifies an $ARCH to create statically linked cross compilers | |
42 for. (The build will then try to use them for the later stages, | |
43 and won't get far if you specify an arch that can't run on the host.)</p> | |
44 | |
45 <p>The include.sh script has been broken up, with a new sources/functions.sh | |
46 containing shell functions (like download, setupfor, and cleanup) and | |
47 a new "config" setting the user-editable environment variables that control | |
48 the build. Several of these variables have been renamed and their number has | |
49 grown. You can now specify the colors for each build stage using the variables | |
50 at the end of config.</p> | |
51 | |
52 <p>Building mini-native in a Linux From Scratch style /tools directory is | |
53 no longer the default. Instead set NATIVE_TOOLSDIR=1 if you want that | |
54 kind of layout instead of a more conventional layout. (Similarly, | |
55 NATIVE_TOOLCHAIN=1 now enables the native toolchain, but that variable | |
56 defaults to enabled in config.)</p> | |
57 | |
58 <p>See the <a href=documentation.html>docs</a> for details.</p> | |
59 | |
388
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60 <h2>August 6, 2008</h2> |
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61 <p><a href=downloads/firmware-0.9.0.tar.bz2>Version 0.9.0</a> is out |
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62 (<a href=http://landley.net/hg/firmware/shortlog/378>changeset 378</a>) |
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63 and can rebuild itself under itself. (The packaging step still requires User |
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64 Mode Linux to create ext2 images, which only works on x86 and x86-64 hosts. |
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65 The next release should replace that with something more portable.) |
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66 The root filesystem is now based on BusyBox 1.11.1 (plus a few bug fixes).</p> |
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67 |
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68 <p>The prebuilt binary images have been moved into their own |
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69 <a href=downloads/binaries>binaries</a> directory. |
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70 The prebuilt binary <a href=downloads/binaries/cross-compiler>cross |
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71 compilers</a> are statically linked against uClibc for better portability. |
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72 Updated the <a href=downloads/README>README</a> to better describe the |
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73 contents of the <a href=downloads/binaries/system-image>system-image |
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74 tarballs</a>.</p> |
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75 |
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76 <p>The forkbomb.sh script can now take a number of parallel targets to |
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77 launch, for example "./forkbomb.sh --fork 3". (The resulting display is kind |
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78 of horrible but the out-$ARCH.txt files are still legible.) Leaving off the |
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79 number still builds all targets in parallel, with the original display.</p> |
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80 |
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81 <p>The include.sh script was reorganized so that interesting environment |
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82 variables the user might want to export for themselves are set near the top |
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83 of the script. Currently this includes:</p> |
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84 |
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85 <ul> |
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86 <li><p><b>BUILD_SHORT</b> - Makes the mini-native.sh stage skip building |
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87 development tools. The resulting mini-native root filesystem contains uClibc |
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88 and busybox, but nothing else. (Export "BUILD_SHORT=headers" to put back the |
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89 toolchain headers for use by another compiler, such as tinycc.)</p> |
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90 |
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91 <li><p><b>BUILD_STATIC</b> - Tell cross-compiler.sh to create static |
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92 binaries, for a more portable cross compiler toolchain. (If you want them |
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93 linked against uClibc, build a mini-native for your host, chroot into it, and |
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94 then rebuild under that.)</li> |
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95 |
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96 <li><p><b>PREFERRED_MIRROR</b> - Tell download.sh to fetch packages from a |
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97 non-default location (falling back to the standard mirror list if it can't get |
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98 one from there).</p></li> |
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99 |
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100 <li><p><b>RECORD_COMMANDS</b> - Record a list of all command lines used during |
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101 each build stage log files named "cmdlines.$STAGE.$PACKAGE" under the build |
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102 directory. Each file can be turned into a list of the command names used via |
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103 "awk '{print $1}' build/cmdlines* | sort -u". The script |
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104 sources/toys/report_recorded_commands.sh gives a report of all commands |
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105 used by each package after a call to "RECORD_COMMANDS=1 ./forkbomb.sh". |
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106 (This is an easy way to find out exactly what environmental dependencies a |
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107 package needs to build, or at least what it uses out of $PATH).</p></li> |
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108 </ul> |
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109 |
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110 <p>Updated documentation is in progress...</p> |
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111 |
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112 <h2>June 6, 2008</h2> |
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113 <p><a href=downloads/firmware-0.4.0.tar.bz2>Version 0.4.0</a> is out |
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114 (<a href=http://landley.net/hg/firmware/shortlog/345>changeset 345</a>), |
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115 with kernel 2.6.25.4 and the "distcc trick" working out of the box.</p> |
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116 |
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117 <p>The distcc trick accelerates a native build by calling out to the |
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118 cross compiler. To use it, download the appropriate cross-compiler-$ARCH and |
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119 system-image-$ARCH tarballs, run the "run-with-distcc.sh" from the system image |
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120 directory with the path to the cross compiler directory as its first argument. |
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121 (You need to have distcc installed on the host system.)</p> |
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122 |
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123 <p>After building from source, the cross-compiler and system-image directories |
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124 remain in the build directory. The "emulator-build.sh" runs these with |
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125 distcc acceration set up. The script "smoketest.sh" is a wrapper |
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126 around emulator-build.sh which feeds a script into qemu's stdin to compile |
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127 and run a multi-threaded "hello world" under the emulator, using distcc and |
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128 the cross compiler.</p> |
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129 |
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130 <p>If smoketest.sh works for a platform, it means a lot of stuff worked to get |
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131 that far. The cross compiler worked to build the system, and the emulated |
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132 system booted so QEMU, the uClibc config, and the kernel config agreed. |
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133 The emulated system has a working virtual hard drive and serial port, and for |
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134 distcc to work it has a working virtual network connection. Running "make" |
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135 would also require a working realtime clock.</p> |
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136 |
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137 <p>The seven commands missing in order to run the FWL build under itself |
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138 are bzip2, sort, diff, wget, install, od, and find. (The busybox versions, |
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139 where available, had a bug, and they're not in toybox yet.) I'm trying to |
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140 get those in for the next release in September.</p> |
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141 |
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142 <p>Sorry I missed a release back in April. Shouldn't happen again.</p> |
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143 |
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144 <h2>January 29, 2008</h2> |
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145 <p><a href=downloads/firmware-0.3.1.tar.bz2>Version 0.3.1</a> is out |
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146 (<a href=http://landley.net/hg/firmware/shortlog/275>changeset 275</a>), with |
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147 kernel 2.6.24. The <a href=downloads/images>images</a> |
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148 are now tarballs each containing the ext2, zImage, and run script files. |
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149 The run scripts now run qemu-setup.sh by default so /proc, /sys, /dev |
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150 and the virtual network are initialized, and the default shell is busybox |
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151 ash (so cursor keys and history work).</p> |
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152 |
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153 <p>Sparc is still broken (tracked it down to a dynamic linking bug, I think, |
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154 haven't fixed it yet) and m68k is failing to build with an internal compiler |
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155 error (next release I should upgrade the compiler). All the other targets |
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156 have a working virtual network, and all but powerpc exit qemu when you |
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157 exit the PID 1 command shell.</p> |
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158 |
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159 <p>Building on an x86-64 host< should no longer be insanely slow (the |
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160 gcc-min-heapsize arguments that allow 32-bit hosts to build in |
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161 128 megs of ram do very impolite things to 64-bit hosts), and the resulting |
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162 x86-64 cross compiler should now be properly relocatable.</p> |
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163 |
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164 <p>Better build dependency tracking: the host-tools script is now |
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165 populating a single directory with all the commands needed by the build, and |
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166 restricting $PATH to that directory (so it can't accidentally call any |
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167 commands that aren't explicitly listed). It's building toybox and busybox to |
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168 provide most of these commands (the remaining ones are listed towards the end |
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169 of include.sh), and creating symlinks to the remaining ones out |
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170 of the original $PATH. This allows it to build on a wider range of host |
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171 distributions.</p> |
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172 |
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173 <h2>November 2, 2007</h2> |
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174 <p><a href=downloads/firmware-0.3.0.tar.bz2>Version 0.3.0</a> is out |
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175 (changeset 242), with kernel 2.6.23. PowerPC finally works under |
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176 qemu (network and everything), and it's building a m68k target |
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177 (although I have no emulator to run that). That means there are |
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178 ten targets, of which eight run under qemu. (Sparc is still |
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179 broken, let me know if anybody actually cares.)</p> |
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180 |
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181 <p>The new "./forkbomb.sh --fork" script builds all the targets in |
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182 parallel, or use --nofork if you haven't got the memory for that |
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183 (and --watch to watch and existing build if you ctrl-c out of |
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184 the display before it's done).</p> |
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185 |
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186 <p>The build is now smarter about extracting only one copy of the |
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187 source code (in build/sources) and re-using it for multiple builds, |
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188 building out of tree (via cp -rs to create a tree full of symlinks |
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189 so the package doesn't need native out-of-tree support).</p> |
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190 |
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191 <h2>September 2, 2007</h2> |
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192 <p>Added <a href=new_platform.html>a porting guide</a>. I'm working on |
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193 m68k, ppc, big endian arm, and maybe blackfin targets for the next release, |
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194 and thought other people might be interested in the process. (The vast |
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195 majority of it is fiddly debugging. These are the other steps.)</p> |
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196 |
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197 <h2>June 27, 2007</h2> |
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198 <p><a href=downloads/firmware-0.2.2.tar.bz2>Version 0.2.2</a> is out |
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199 (changeset 185). Using uClibc 0.9.29 release, several small bugfixes, |
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200 new mips big-endian config, actually work when /bin/sh->dash (mostly |
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201 by explicitly saying /bin/bash everywhere), automatically detect |
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202 the number of CPUs in the machine to feed -j to make, and better |
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203 diagnostic output.</p> |
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204 |
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205 <h2>April 9, 2007</h2> |
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206 <p><a href=downloads/firmware-0.2.1.tar.bz2>Version 0.2.1</a> is out |
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207 (changeset 156). Significant upgrades to armv4l: the native compiler works |
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208 now, and it's using soft-float. Added armv5l and i586 targets to show how |
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209 to do that kind of variant. Added preliminary powerpc support (although |
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210 qemu can't run it yet). Reorganized the download directory and rewrote |
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211 the <a href=downloads/README>README</a>. Added squashfs back (the kernel |
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212 supports it, but it's not using it yet). Moved uClibc to miniconfig. |
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213 (Yes, the patch for this is huge, and yes I need to push it all upstream into |
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214 the Linux kernel. On the bright side, this one builds on a host that doesn't |
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215 have curses installed.) Stopped trying to build qemu (at least until they |
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216 get the gcc 3.x dependencies cleaned out), now just warn if it's not there |
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217 (so far the build only uses it to sanity-test the cross compiler, which is |
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218 now skipped automatically if it's not there).</p> |
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219 |
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220 <p>I note that some versions of Ubuntu (Edgy and up) are pushing a political |
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221 agenda. They install bash, but point /bin/sh to dash instead. (So why |
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222 install bash if you're not going to use it?) This breaks all sorts of things, |
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223 and if somebody can tell me how to force make to run "/bin/bash" instead of |
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224 "/bin/sh", I'll consider trying to deal with the mess. Until then, I suggest |
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225 "rm /bin/sh; ln -s bash /bin/sh" to get a working system. (I'm no fan of |
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226 bash, but dash is just broken.)</p> |
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227 |
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228 <p>(Those of you who use vi and want to be able to use the cursor keys while |
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229 in insert mode might want to do something similar with vi->vim. Ubuntu seems |
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230 to be trying to train users to change their habits. Dog biscuits would be a |
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231 more honest approach.)</p> |
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232 |
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233 <p>Update: I've been pointed at |
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234 <a href=https://wiki.ubuntu.com/DashAsBinSh>this</a> as evidence Ubuntu isn't |
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235 pushing a political agenda. Ok, maybe it's just really bad technical judgement. |
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236 Are they honestly saying that people write shell scripts for the speed? And |
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237 how do you make a size argument and then install bash by default in ADDITION |
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238 to the other shell? Boggle. In 1991 after Linus Torvalds taught his term |
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239 program to understand the minix filesystem so he could upload and download |
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240 without rebooting, he taught it to handle the system calls of bash so he could |
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241 rm/mv/mkdir without rebooting. That's where Linux 0.0.1 |
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242 came from. Bash was the default Linux shell _before_ 0.0.1. Be very |
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243 careful messing with that kind of a de-facto standard, guys. Dash is |
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244 garbage. Background a process with & and then hit ctrl-c: it'll kill it. |
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245 It doesn't understand blah/{blah,blah} file list syntax. It can't do |
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246 "source file.sh" (just ". file.sh", which is unreadable). I repeat: I'm not a |
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247 fan of bash (yeah, the bloat's getting crazy), but dash is broken.</p> |
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248 |
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249 <p>And that still doesn't explain why "vi" can't use the cursor keys in |
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250 insert mode, but "vim" can...</p> |
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251 |
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252 <h2>March 6, 2007</h2> |
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253 <p>Version 0.2.0 is out. This one builds ext2 images which can boot up to a |
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254 shell prompt under qemu. This works on i686, armv4l, x86_64, and mipsel. |
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255 (Sparc's broken. Anyone who cares about sparc is welcome to debug it.)</p> |
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256 |
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257 <p>There are now prebuilt ext2 image files in the download directory. |
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258 The kernels are in the mini-native tarballs. (Yeah, I should repackage that |
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259 next release.) The system emulator invocation for each platform is |
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260 the appropriate sources/configs file, and run-mini-native.sh invokes 'em.</p> |
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261 |
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262 <p>The mailing list is in the usual place if you have any questions.</p> |
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263 |
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264 <h2>January 14, 2007</h2> |
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265 <p>There's a new irc channel for the project, #firmware on freenode.</p> |
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266 |
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267 <p><a href=http://landley.net/hg/firmware?cl=88>Changeset 88</a> builds |
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268 i686, x86_64, armv4l, mips, and sparc. I've made a release tarball of |
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269 that (<a href=downloads/firmware-0.1.1.tar.bz2>firmware 0.1.1</a>, "It works |
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270 for me"), and updated the prebuilt cross-compiler tarballs in the |
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271 <a href=downloads>downloads</a> directory. I've added a big README and |
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272 prebuilt mini-native tarballs for each platform (although packing them up into |
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273 something qemu can boot is currently left as an exercise for the reader).</p> |
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274 |
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275 <p>Speaking of which, I'm currently working on adding ext2 packaging |
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276 (via <a href=http://landley.net/code/toybox>toybox</a>) to the build scripts, |
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277 so qemu system emulation can boot the result and then run the next stage |
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278 automatically.</p> |
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279 |
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280 <h2>December 28, 2006</h2> |
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281 <p><a href=http://landley.net/hg/firmware?cl=68>Changeset 68</a> builds |
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282 a native build environment with a working toolchain. And in celebration, I've |
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283 revamped the website with an actual navigation bar and content and such.</p> |
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284 |
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285 <p>I should put out a release soon.</p> |
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286 |
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287 <h2>December 5, 2006</h2> |
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288 <p><a href=http://landley.net/hg/firmware?cl=27>Changeset 27</a> builds |
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289 a relocatable armv4l cross-compile toolchain! Download the tarball, |
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290 run ./download.sh, then run ./build.sh, then grab the "build/cross-compiler" |
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291 directory and use "bin/armv4l-unknown-linux-gnu-gcc" out of that (which |
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292 I admit is a bit of a mouthful, for which I blame the FSF).</p> |
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293 |
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294 <h2>August 6, 2006</h2> |
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295 <p>Mecurial repository created. Nothing to see yet, move along...</p> |
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296 <!--#include file="footer.html" --> |