Mercurial > hg > aboriginal
annotate www/news.html @ 1121:3c5eb21262af
Add a title to the main page, and correct the URL since adding a subdomain probably isn't worth the effort.
| author | Rob Landley <rob@landley.net> |
|---|---|
| date | Wed, 16 Jun 2010 18:10:17 -0500 |
| parents | 333c8f799302 |
| children | 479bcbb2775e |
| rev | line source |
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1121
3c5eb21262af
Add a title to the main page, and correct the URL since adding a subdomain probably isn't worth the effort.
Rob Landley <rob@landley.net>
parents:
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1 <html> |
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3c5eb21262af
Add a title to the main page, and correct the URL since adding a subdomain probably isn't worth the effort.
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2 <title>Aboriginal Linux - We cross compile so you don't have to.</title> |
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3c5eb21262af
Add a title to the main page, and correct the URL since adding a subdomain probably isn't worth the effort.
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3 <body> |
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0da87d1ef528
Update the web page. Put the left-side nav bar back, move about page to "about.html" and make news.html the default index. Add architectures page. Note that IRC discussion is now on #edev.
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4 <!--#include file="header.html" --> |
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0da87d1ef528
Update the web page. Put the left-side nav bar back, move about page to "about.html" and make news.html the default index. Add architectures page. Note that IRC discussion is now on #edev.
Rob Landley <rob@landley.net>
parents:
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5 |
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388
3eeb77934265
Add project summary page to website, moving news to its own page.
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6 <b><h1>News</h1></b> |
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7 |
| 1022 | 8 <hr> |
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9 <h2><a name="05-02-2010" />May 2, 2010</h2> |
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10 <p>The name of the project is changing from Firmware Linux to Aboriginal |
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11 Linux. The new URL is "http://impactlinux.com/aboriginal".</p> |
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12 |
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333c8f799302
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13 <p>Some reasons to move away from the old name are |
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333c8f799302
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14 <a href=http://lists.impactlinux.com/pipermail/firmware-impactlinux.com/2009-October/000374.html>listed here</a>, |
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333c8f799302
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15 and some reasons to pick the new name are covered in |
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333c8f799302
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16 <a href=http://lists.impactlinux.com/pipermail/firmware-impactlinux.com/2010-April/000671.html>this thread</a>.</p> |
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333c8f799302
Update lots and lots of web pages for the project name change to Aboriginal Linux.
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parents:
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17 |
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333c8f799302
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18 <p>Some links may be broken while we switch over. Let us know what we've |
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19 missed on the mailing list...</p> |
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20 |
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21 <hr> |
| 1022 | 22 <h2><a name="03-29-2010" />March 29, 2010</h2> |
| 23 <p><a href=downloads/firmware-0.9.11.tar.bz2>Version 0.9.11</a> is out, | |
| 24 based on <a href=http://impactlinux.com/hg/firmware/shortlog/1020>hg commit | |
| 25 1020</a>. We're closing in on a 1.0 release, but not quite there yet.</p> | |
| 26 | |
| 27 <p>This version upgrades to Linux 2.6.33, uClibc 0.9.30.3, and BusyBox | |
| 28 1.16.1.</p> | |
| 29 | |
| 30 <b><h3>Improved native builds</h3></b> | |
| 31 | |
| 32 <p>Most targets now have <a href=downloads/binaries>prebuilt binaries</a> | |
| 33 for <a href=http://matt.ucc.asn.au/dropbear/dropbear.html>dropbear</a>, | |
| 34 <a href=http://sourceforge.net/projects/strace/>strace</a>, | |
| 35 <a href=http://busybox.net>busybox</a>. These are statically | |
| 36 linked against uClibc, so just download, set the executable bit, and run.</p> | |
| 37 | |
| 38 <p>These dropbear and strace binaries are built using the automated three-disk | |
| 39 native build capability introduced <a href=#11-07-2009>back in November</a>, | |
| 40 which has been improved and genericized this release. Now one script creates | |
| 41 a build image (see examples in sources/native-builds) and another script | |
| 42 launches a system image with that build image attached as the third | |
| 43 hard drive (/dev/hdc), telling the system image to automatically build | |
| 44 those source packages and upload the result to the host via ftp.</p> | |
| 45 | |
| 46 <p>So to reproduce the dropbear and strace binaries for a supported ARCH, | |
| 47 you could do:</p> | |
| 48 | |
| 49 <blockquote><pre> | |
| 50 ./build.sh ARCH | |
| 51 sources/native-builds/static-tools.sh tools.hdc | |
| 52 sources/more/native-build.sh ARCH tools.hdc output | |
| 53 </pre></blockquote> | |
| 54 | |
| 55 <p>When the build exits, the results should be in the host's "output" | |
| 56 directory.</p> | |
| 57 | |
| 58 <b><h3>Targets</h3></b> | |
| 59 <p>The arm, mips, x86, x86-64 targets that worked last time still work. | |
| 60 The armv4eb and m68k targets still don't work.</p> | |
| 61 | |
| 62 <p>The powerpc and sparc targets have been upgraded. Powerpc now works with | |
| 63 the 3-disk automated native build (although you'll need qemu 0.12.4 to take | |
| 64 advantage of this). The sparc dynamic linker still doesn't work in uClibc, | |
| 65 but the statically linked system is now working well enough to build packages | |
| 66 natively.</p> | |
| 67 | |
| 68 <p>New targets this release are i486 (thanks David Seikel) and mips64 (which | |
| 69 mostly works, but the native toolchain isn't quite properly configured to | |
| 70 build stuff with yet).</p> | |
| 71 | |
| 72 <p>Finally, the sh4 target was broken by a cosmetic cleanup of the startup | |
| 73 assembly code in Linux 2.6.33 that rendered any binutils version older | |
| 74 than 4 months unusable to build sh4. While it's possible to patch around | |
| 75 this, it hasn't yet been worth effort. The Linux-sh4 maintainer is aware | |
| 76 of the issue, but explicitly | |
| 77 <a href=http://permalink.gmane.org/gmane.linux.ports.sh.devel/7237>doesn't | |
| 78 care</a> about users other than his employer, and so far nobody | |
| 79 else seems to care enough about supporting the discontinued Sega Dreamcast | |
| 80 game console to argue with him. (Might revisit this next release, but m68k | |
| 81 support is a higher priority.)</p> | |
| 82 | |
| 83 <b><h3>Infrastructure</h3></b> | |
| 84 <p>The system-image's "run-emulator.sh" is now a much smaller and simpler | |
| 85 script, consisting primarily of the qemu command line. (And if you export | |
| 86 DEBUG=1 it prints the emulator command line.) The distcc and hdb | |
| 87 setup code moved to dev-environment.sh.</p> | |
| 88 | |
| 89 <p>The <a href=screenshots>screenshots</a> page is working again, if a bit | |
| 90 stale.</p> | |
| 91 | |
| 92 <p>The bisectinate.sh script (to automatically git bisect a build issue) | |
| 93 has been updated, more to come next release.</p> | |
| 94 | |
| 95 <p>The download.sh script has been updated to understand FORK=1 and download | |
| 96 packages in parallel. (And to extract them in parallel when | |
| 97 EXTRACT_ALL=1.)</p> | |
| 98 | |
| 99 <p>The new export_if_blank shell function allows several more environment | |
| 100 variables to be overridden, including TOP, SOURCES, SRCDIR, PATCHDIR, | |
| 101 BUILD, SRCTREE, HOSTTOOLS, WRAPDIR, CC, and STAGE_NAME.</p> | |
| 102 | |
| 103 <p>I'd also like to thank the debugging efforts of Wolfgang Denk, who hit | |
| 104 as many bugs trying to use this project as I normally do with other people's. | |
| 105 He eventually got discouraged and left, but thanks to his efforts:</p> | |
| 106 | |
| 107 <ul> | |
| 108 <li><p>We now unset several environment variables (such as ARCH and | |
| 109 CROSS_COMPILE) that break things if the host exports random data in them | |
| 110 before the build. (Yes, this fights with export_if_blank above, and | |
| 111 the way configuration works in general. Some more design works is necessary | |
| 112 here to let you configure the project with environment variables, but | |
| 113 not be confused by existing environment debris.)</p></li> | |
| 114 | |
| 115 <li><p>BUILD_STATIC=none can how handle the case where the host toolchain | |
| 116 can't build any static binaries at all.</p></li> | |
| 117 | |
| 118 <li><p>The CROSS_SMOKE_TEST implementation (which had bit rotted) was fixed and | |
| 119 moved to its own script (sources/more/cross-smoke-test.sh), which is called by | |
| 120 build.sh as necessary.</p> | |
| 121 | |
| 122 <p>Note that actually trying to use it is a question | |
| 123 of getting qemu application emulation to work for your target. For | |
| 124 arm you need to tweak /proc/sys/vm/mmap_min_addr as root. For ppc you | |
| 125 need <a href=http://git.qemu.org/qemu.git/commit/?id=7983f435e5306a4b17e1edcb408ba64b33e9c88f>this patch</a>. For mips64 somebody still needs to | |
| 126 implement it (<a href=http://lists.gnu.org/archive/html/qemu-devel/2010-03/msg02218.html>no matter what gentoo thinks</a>).</p> | |
| 127 | |
| 128 <p>(There's a reason the smoke test was disabled long enough to bit-rot. | |
| 129 It broke for qemu reasons more often than it found bugs in the toolchain.)</p> | |
| 130 </li> | |
| 131 </ul> | |
| 132 | |
| 133 <hr> | |
| 969 | 134 <h2><a name="02-02-2010" />February 2, 2010</h2> |
| 135 | |
| 136 <p><a href=downloads/firmware-0.9.10.tar.bz2>Version 0.9.10</a> is out, | |
| 137 based on <a href=http://impactlinux.com/hg/firmware/shortlog/966>hg | |
| 138 commit 966</a>.</p> | |
| 139 | |
| 140 <p>Yeah, I know 1.0 is overdue for a release, here's a resync point | |
| 141 with the 2.6.32 kernel and uClibc 0.9.30.2.</p> | |
| 142 | |
| 143 <p>There are some regressions this time around, which I plan to fix up | |
| 144 in the next release. The 2.6.32 kernel broke strace, | |
| 145 and upgrading to the new version didn't fix it. (I know how, I just haven't | |
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146 yet.) The m68k target isn't currently building due to the uClibc upgrade |
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147 (yeah, "bugfix only", I know), and the armv6l target seems to be broken two |
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148 different ways. I screwed up the screenshots page (which is halfway converted |
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149 to Vladimir's new fancy version with style sheets, but "halfway" doesn't |
| 969 | 150 actually display right). The cron job building nightly snapshots got taken down |
| 151 when the server's hard drive filled up, and now it's in the process of being | |
| 152 upgraded with a couple new scripts:</p> | |
| 153 | |
| 154 <p>The new sources/more/migrate_kernel.sh script does a "make oldconfig" | |
| 155 between the stable and "USE_UNSTABLE=linux" kernels, and creates a new | |
| 156 alt-miniconfig-linux for the specified target with any new symbols that | |
| 157 showed up. (This means the snapshots should break less, but adding the | |
| 158 symbols to the native configs will still require manual filtering.)</p> | |
| 159 | |
| 160 <p>Also, the new sources/more/bisectinate.sh script automatically does | |
| 161 a git bisect between a known good and known bad (generally HEAD) version | |
| 162 of one of the unstable packages (linux, uClibc, or busybox). It can test | |
| 163 that the build completes, or that the system image boots and successfully | |
| 164 builds the static native dropbear binary. (In theory this will allow the | |
| 165 nightly snapshots to automaticaly isolate and report the first commit that | |
| 166 broke them.)</p> | |
| 167 | |
| 168 <p>In other general infrastructure news: some extensive upgrades to the | |
| 169 compiler wrapper (ccwrap), such as no longer needing GIMME_AN_S at compile | |
| 170 time and instead autodetecting the presence of libgcc_s.so vs libgcc.a | |
| 171 and behaving appropriately. A largeish cleanup/refactoring of the compiler | |
| 172 build (described in | |
| 173 <a href=http://impactlinux.com/hg/firmware/shortlog/944>commit 944</a>) | |
| 174 added a new "native-compiler.sh" script, which handles building the | |
| 175 improved "cross-compiler" tarball that includes thread support and | |
| 176 uClibc++ and is statically linked against uClibc on the host. | |
| 177 The simple cross compiler is now "simple-cross-compiler.sh" (which is | |
| 178 good enough to build a system image, but isn't very useful in other | |
| 179 contexts).</p> | |
| 180 | |
| 181 <p>The host-tools.sh stage now only builds | |
| 182 e2fsprogs or squashfs if the build is actually going to use them (based | |
| 183 on the SYSIMAGE_TYPE config symbol). The sources/sections scripts now | |
| 184 come in two flavors: an *.build version with setup/cleanup called | |
| 185 automatically and *.sh files which do their own setup/cleanup within | |
| 186 the script. Each system image's run-emulator.sh will once again add | |
| 187 /sbin:/usr/sbin to the $PATH if it can't find mke2fs.</p> | |
| 188 | |
| 189 <p>The --extract command line option went away from download.sh because | |
| 190 everything else works via environment variables. Use EXTRACT_ALL=1 instead.</p> | |
| 191 | |
| 192 <p>Fixed a few regressions that snuck into previous versions: the | |
| 193 config-{linux,uClibc,busybox} should once again be in the root filesystem's | |
| 194 usr/src directory, buildall.sh should now try to build the static native | |
| 195 dropbear/strace binaries for all targets (not just the last one) and it | |
| 196 should properly be running smoketest.sh again.</p> | |
| 197 | |
| 1022 | 198 <hr> |
| 927 | 199 <h2><a name="12-08-2009" />December 8, 2009</h2> |
| 200 <p><a href=downloads/firmware-0.9.9.tar.bz2>Version 0.9.9</a> is out, | |
| 969 | 201 based on <a href=http://impactlinux.com/hg/firmware/shortlog/921>hg commit 921</a>.</p> |
| 927 | 202 |
| 203 <p>Just a checkpoint on the way to 1.0, which is still planned for | |
| 204 around new years, but there's been some schedule slippage already.</p> | |
| 205 | |
| 206 <ul> | |
| 207 <li> | |
| 208 <p><b>New documentation</b></p> | |
| 209 <p>The presentation slides have been converted to | |
| 210 <a href=presentation.html>HTML</a>, although the much prettier (and much | |
| 211 bigger) <a href=downloads/presentation.pdf>PDF</a> is still available.</p> | |
| 212 | |
| 213 <p>There is also a <a href=FAQ.html>FAQ</a>, which is still somewhat sparse. | |
| 214 (Ask away.)</p> | |
| 215 </li> | |
| 216 | |
| 217 <li><p><b>Prebuilt binaries</b></p></li> | |
| 218 | |
| 219 <p>Added shm support to uClibc. Bugfix to the c++ | |
| 220 compiler (it should work again). The system images now have a "guest" | |
| 221 user/group so packages can more easily be built as a non-root user. | |
| 222 The shell prompt now includes the $HOST name.</p> | |
| 223 </li> | |
| 224 | |
| 225 <li><p><b>Build scripts</b></p> | |
| 226 <p>A new trivial-but-convenient "./clean.sh" script lets you delete just the | |
| 227 target builds out of "build". (If you delete that whole directory it has to | |
| 228 re-extract all the package tarballs and rebuilt the host tools, which is | |
| 229 often unnecessary work.)</p> | |
| 230 | |
| 231 <p>Command recording has been completely redone. No more RECORD_COMMANDS | |
| 232 variable, instead run sources/more/record-commands.sh to wrap the current | |
| 233 $PATH in build/wrappy (either after or instead of running host-tools.sh), | |
| 234 then run your build stages, and finally either run | |
| 235 sources/more/report-recorded-commands.sh to get a summary or | |
| 236 look at the raw command line lists in build/logs.</p> | |
| 237 | |
| 238 <p>The Great Refactoring continues in sources/sections: broke up | |
| 239 binutils-gcc.sh into individual binutils, gcc, and ccwrap | |
| 240 stages, split off linux-headers and uClibc++ from uClibc.sh, | |
| 241 and spun off toybox.sh from busybox.sh.</p> | |
| 242 | |
| 243 <p>Also broke kernel_cmdline() out of qemu_defaults() to make it easier to add | |
| 244 non-qemu sources/targets configurations without reinventing the wheel, | |
| 245 and fixed up dependencies for hw-target builds (which should work a lot | |
| 246 more reliably now).</p> | |
| 247 | |
| 248 <p>Bumped up the number of $CPUS used by the build to 1.5x the actual number | |
| 249 (as long as your host has at least 512 megs of ram per actual CPU). That | |
| 250 should help keep larger servers busy.</p> | |
| 251 | |
| 252 <p>Some self-hosting fixes from Natanael Copa (making sure host-tools.sh | |
| 253 builds on a uClibc host): added --disable-nls to the e2fsprogs build | |
| 254 (what exactly is ./configure running all these tests for again?), and a | |
| 255 squashfs patch (substituting a function uClibc hasn't got).</p> | |
| 256 | |
| 257 <p>Simplified system-image.sh to use killtree() instead of mysetsid. | |
| 258 Simplified the cross-compiler/cross-static logic to set the $PATH to | |
| 259 use the right one, rather than moving them around during the build. | |
| 260 Updated smoketest-all.sh to show "NONE" for system images that didn't build. | |
| 261 Added more support for SKIP_STRIP and CFLAGS=-g to the rest of the | |
| 262 packages. Cleaned out the old USE_COLOR stuff which was superceded by | |
| 263 set_titlebar.</p> | |
| 264 </li> | |
| 265 </ul> | |
| 266 | |
| 267 <hr> | |
| 268 <h2><a name=11-07-2009 />November 7, 2009</h2> | |
| 879 | 269 <p><a href=downloads/firmware-0.9.8.tar.bz2>Version 0.9.8</a> is out, |
| 270 based on hg commit 876. (If you want to see all the changes in this release, | |
| 271 look at <a href=http://impactlinux.com/hg/firmware/shortlog/876>commits 810 through 876</a>.)</p> | |
| 272 | |
| 273 <p.The current plan is to cut one more release at the end of the month, and | |
| 274 then have the 1.0 release around new year's. This could be considered a | |
| 275 1.0-pre1, if you like.</p> | |
| 276 | |
| 277 <p>This release upgrades linux to 2.6.31.4 and busybox to 1.15.2. | |
| 278 (The uClibc version is still 0.9.30.1, they haven't had a new release | |
| 279 yet.)</p> | |
| 280 | |
| 281 <p>The old #firmware irc channel on freenode.net has been merged into #edev, | |
| 282 so go there now to ask questions about this project. (A _lot_ of | |
| 283 knowledgeable, helpful people hang there who can answer your embedded | |
| 284 development questions.)</p> | |
| 285 | |
| 286 <h3><b>Bug tracker and roadmap</b></h3> | |
| 287 | |
| 288 <blockquote> | |
| 289 <p>The <a href=http://redmine.impactlinux.com/projects/impact>new bug | |
| 290 tracker</a> has a <a href=http://redmine.impactlinux.com/projects/impact/roadmap>roadmap</a> | |
| 291 showing what we plan to implement for the next release or two.</p> | |
| 292 | |
| 293 <p>It's also a place to file bugs, athough sending them to the <a href=http://lists.impactlinux.com/listinfo.cgi/firmware-impactlinux.com>mailing list</a> | |
| 294 is still the fastest way to get a fix.</p> | |
| 295 </blockquote> | |
| 296 | |
| 297 <h3><b>New screenshots page</b></h3> | |
| 298 | |
| 299 <blockquote> | |
| 300 <p><a href=screenshots>This page</a> lists every target, with | |
| 301 a "screenshot" of the target's boot messages under qemu, and associated | |
| 302 links to all the various prebuilt binaries for that target.</p> | |
| 303 </blockquote> | |
| 304 | |
| 305 <h3><b>Fun with static linking</b></h3> | |
| 306 | |
| 307 <blockquote> | |
| 308 <p>The cross-compiler-$ARCH tarballs are all compiled for i686 and | |
| 309 statically linked against uClibc for maximum portability.</p> | |
| 310 | |
| 311 <p>The busybox binary in the root filesystem images is now built statically by | |
| 312 default, providing a 20% speed improvement in ./configure times under qemu | |
| 313 (due to the reduced page translation overhead). You can switch this back | |
| 314 to dynamic with "BUILD_STATIC=none".</p> | |
| 315 | |
| 316 <p>Static dropbear and strace binaries for each target are also available, | |
| 317 built by the new sources/more/native-static-build.sh script.</p> | |
| 318 </blockquote> | |
| 319 | |
| 320 <h3><b>System Image interface changes</b></h3> | |
| 321 | |
| 322 <blockquote> | |
| 323 <p>The run-from-build.sh script used to set up a development environment | |
| 324 out of the build directory, but didn't provide an easy way to do so based | |
| 325 on downloaded tarballs. (You had to work out and provide extensive | |
| 326 command line arguments to the run-emulator.sh script.) This has been | |
| 327 fixed.</p> | |
| 328 | |
| 329 <p>The run-emulator.sh script in each system interface tarball is now much | |
| 330 simpler. It now looks for distccd and $ARCH-cc in its $PATH, and sets up | |
| 331 distcc acceleration automatically if it finds them. (It announces whether | |
| 332 or not it has managed to do so, and init.sh announces whether or not it | |
| 333 thinks it has distcc acceleration enabled just before launching a command | |
| 334 prompt.) So setting up the distcc accelerator should be less of a pain.</p> | |
| 335 | |
| 336 <p>Also, run-emulator.sh no longer takes any command line arguments. Instead | |
| 337 the environment variable $HDB indicates a /dev/hdb disk image to mount on | |
| 338 /home, $HDBMEGS specifies the size of a (sparse ext2) HDB image to create if | |
| 339 it doesn't already exist, and QEMU_MEMORY indicates how many megabytes of | |
| 340 physical memory the emulator should allocate for the virtual system.</p> | |
| 341 | |
| 342 <p>Each system-image also provides a simple wrapper dev-environment.sh | |
| 343 which calls run-emulator.sh with HDBMEGS=2048, HDB=hdb.img, and | |
| 344 QEMU_MEMORY=256. (These are the values run-from-build.sh used to provide, | |
| 345 and give a reasonable build environment with 256 megs of physical memory | |
| 346 and 2 gigabytes of writeable /home space.) The run-from-build.sh script | |
| 347 itself now merely adds the specified build/cross-compiler-$ARCH directory | |
| 348 to the $PATH, changes directory to the appropriate build/system-image-$ARCH, | |
| 349 and calls ./dev-environment.sh. It's 3 lines.</p> | |
| 350 | |
| 351 <p>The system images can now also automatically mount a third disk image | |
| 352 ($HDC, specifying an /dev/hdc image to mount onto the /mnt directory), and if | |
| 353 that filesystem contains an executable "init" program in its root directory | |
| 354 the sbin/init.sh script will run that instead of launching a command prompt.</p> | |
| 355 | |
| 356 <p>The new native-static-build.sh uses this HDC capability to automatically | |
| 357 run some native package builds without having to drive the build through | |
| 358 /dev/console via a wrapper script (the way smoketest.sh does). See | |
| 359 sources/more/setup-native-static-build.sh for the script which generates | |
| 360 the hdc.sqf image for this.</p> | |
| 361 | |
| 362 <p>Note that some targets (such as sh4 and powerpc) don't yet support /dev/hdc | |
| 363 due to QEMU board emulation limitations.</p> | |
| 364 </blockquote> | |
| 365 | |
| 366 <h3><b>Build interface changes</b></h3> | |
| 367 | |
| 368 <blockquote> | |
| 369 <p>The new "sources/more" directory contains scripts the end user can | |
| 370 call, but which aren't important enough to clutter up the top level | |
| 371 directory with. The buildall.sh and smoketest-all.sh scripts moved there, | |
| 372 as did the cronjob.sh used to build the nightly snapshots.</p> | |
| 373 | |
| 374 <p>The new sources/more/native-static-build.sh natively compiles dropbear and | |
| 375 strace under the emulator, and copies them out to the host through the virtual | |
| 376 network (into the build/cron-temp directory) using busybox ftpd on the host. | |
| 377 This provides an example of how to use the new HDC /mnt/init functionality | |
| 378 to perform automatic builds under the emulator, and copy the results out | |
| 379 through the network. It uses the new sources/timeout.sh wrapper to detect | |
| 380 hung builds (defined as builds that haven't produced a line of output within | |
| 381 a given number of seconds).</p> | |
| 382 | |
| 383 <p>The new BINARY_PACKAGE_TARBALLS variable (in the file "config") tells | |
| 384 the build to create a separate tarball of the binaries produced building | |
| 385 each package. (These more granular tarballs aren't shipped yet, but may | |
| 386 be in a future release.)</p> | |
| 387 | |
| 388 <p>The new SKIP_STRIP variable tells the build not to strip binaries. | |
| 389 (Add in CFLAGS=-g for enormous binaries full of debug info.)</p> | |
| 390 </blockquote> | |
| 391 | |
| 392 <h3><b>Target upgrades</b></h3> | |
| 393 | |
| 394 <blockquote> | |
| 395 <p>Powerpc and sh4 should now work fine with stock qemu 0.11.0.</p> | |
| 396 | |
| 397 <p>The arm platform now has an armv4tl target. This is a little-endian armv4 | |
| 398 eabi, for armv4 chips offering the "thumb" extension which eabi requires. | |
| 399 (The plain armv4l target is still oabi. The oabi/eabi thing is different | |
| 400 binary ABIs, a bit like Linux vs BSD binaries or aout vs elf. The eabi | |
| 401 standard is the new one, but some of the older arm hardware can't support | |
| 402 it. This takes it down as far as it can go.)</p> | |
| 403 </blockquote> | |
| 404 | |
| 405 <h3><b>Infrastructure</b></h3> | |
| 406 | |
| 407 <blockquote> | |
| 408 <p>Behind the scenes, some extensive work is going on to simplify the | |
| 409 build scripts. (The documentation's fallen a bit behind reality here, | |
| 410 but should be back up to date next release.)</p> | |
| 411 | |
| 412 <p>The uClibc miniconfigs are now automatically generated, with the | |
| 413 bulk of the config living in sources/baseconfig-uClibc and the few | |
| 414 target specific lines being appended from the UCLIBC_CONFIG variable | |
| 415 defined in the target's settings file.</p> | |
| 416 | |
| 417 <p>The other big change is factoring out lots of common code, moving it into | |
| 418 the sources/sections directory, so things like the uClibc, busybox, and | |
| 419 toolchain builds now live in one place and are called from the various | |
| 420 other scripts that need them. (This may eventually allow alternate build | |
| 421 scripts for these packages, potentially swapping out glibc for uClibc, or | |
| 422 llvm/clang for gcc. In the meantime, it eliminates a lot of redundant code.)</p> | |
| 423 | |
| 424 <p>This required lots of small cleanups, such as making the scripts now | |
| 425 consistently use the $STAGE_DIR variable for their output directory. | |
| 426 Some other cleanups were primarily cosmetic, such as moving the extracted | |
| 427 tarball cache directory from build/sources to build/packages. (Tarballs | |
| 428 live in packages, extracted tarballs live in build/packages.)</p> | |
| 429 | |
| 430 <p>The root filesystem now contains simple /etc/passwd and /etc/group files, | |
| 431 because dropbear won't work without them (not even to ssh out).</p> | |
| 432 | |
| 433 <p>Several small bugfixes (ccwrap no longer segfaults if $PATH isn't | |
| 434 exported, /etc/resolv.conf doesn't get overwritten unnecessarily by init.sh, | |
| 435 etc).</p> | |
| 436 </blockquote> | |
| 437 | |
| 927 | 438 <hr> |
| 439 <h2><a name=08-20-2009 />August 20, 2009</h2> | |
| 809 | 440 <p><a href=downloads/firmware-0.9.7.tar.bz2>Version 0.9.7</a> is out, a little |
| 441 over a month and a half late. It's a larger update than usual, so the | |
| 442 release notes are a bit long.</p> | |
| 443 | |
| 444 <p>This release is based on | |
| 445 <a href=http://impactlinux.com/hg/firmware/log/807>mercurial version 807</a> | |
| 446 of the build scripts, | |
| 447 and includes <b>Linux 2.6.30.4</b> and <b>BusyBox 1.14.3</b>. | |
| 448 No new uClibc release is out since last time.</p> | |
| 449 | |
| 450 <p>Lots of little bugs got fixed. For example, this release should build on | |
| 451 Fedora 11 (and any other platform that hasn't got "which" installed by | |
| 452 default), and now supports distcc and ccache on the host (and will use them | |
| 453 automatically if they are installed).</p> | |
| 454 | |
| 455 <h3><b>Changes to build stages: new root-filesystem, cross-static, and | |
| 456 native-compiler tarballs, upgraded buildall.sh and smoketest-all.sh.</b></h3> | |
| 457 | |
| 458 <blockquote> | |
| 459 <p>The old "mini-native" stage has been renamed "root-filesystem" | |
| 460 (the same way package-mini-native became system-image last release). The | |
| 461 script names (and resulting tarballs) now indicate what each stage makes. | |
| 462 So build.sh calls host-tools.sh, cross-compiler.sh, root-filesystem.sh, | |
| 463 and system-image.sh, in that order.</p> | |
| 464 | |
| 879 | 465 <p>The old build-static-toolchains.sh script is gone, with its functionality |
| 809 | 466 integrated into buildall.sh (which now builds i686 hosted static toolchains |
| 467 for each target by default). This is implemented by two new environment | |
| 468 variables triggering optional behavior: STATIC_CROSS_COMPILER_HOST | |
| 469 and BUILD_STATIC_NATIVE_COMPILER.</p> | |
| 470 | |
| 471 <p>Setting STATIC_CROSS_COMPILER_HOST to an architecture name creates a | |
| 472 cross compiler statically linked to run on that host (via a technique | |
| 473 known as canadian cross compile). For example, the invocation:</p> | |
| 474 | |
| 475 <blockquote> | |
| 476 <p>BUILD_CROSS_COMPILER_HOST=i686 ./build.sh armv4l</P> | |
| 477 </blockquote> | |
| 478 | |
| 479 <p>Would create a tarball called "cross-static-armv4l.tar.bz2" which was | |
| 480 built to run on an i686 host, and was statically linked (against uClibc) | |
| 481 on that host to be distribution independent.</p> | |
| 482 | |
| 483 <p>Setting BUILD_STATIC_NATIVE_COMPILER to any non-empty value creates a | |
| 484 native compiler for the target (packaged as native-compiler-$ARCH.tar.bz2), | |
| 485 which is statically linked against uClibc so it can be extracted and run on | |
| 486 just about any system of the appropriate type. (So if you can get a Linux | |
| 487 shell prompt and have enough storage and memory, you should be able to | |
| 488 compile stuff.)</p> | |
| 489 | |
| 490 <p>The upgraded smoketest-all.sh script runs smoketest.sh on each | |
| 491 target built. (The smoketest.sh script attempts to compile and run "hello | |
| 492 world" natively within a system image under qemu, and indicates whether or | |
| 493 not it worked via "pass" or "fail".) Note that smoketest-all.sh now | |
| 494 autodetects which targets have been built (have system images in the build | |
| 495 directory), and smoketest.sh times out after 60 seconds so targets that hang | |
| 496 will return failure eventually.</p> | |
| 497 | |
| 498 </blockquote> | |
| 499 | |
| 500 <h3><b>Squashfs 4.0 now the default system image type</b></h3> | |
| 501 | |
| 502 <blockquote> | |
| 503 <p>The root filesystem image type is now squashfs by default. (To change it set | |
| 504 SYSIMAGE_TYPE to ext2 or initramfs, either in your environment or the file | |
| 505 "configure".)</p> | |
| 506 | |
| 507 <p>This involved upgrading the userspace squashfs support package | |
| 508 to the version 4.0 supported by the upstream kernel, and numerous small fixes | |
| 509 to work with a read-only root filesystem (with writeable spaced mounted on | |
| 510 /home and /tmp).</p> | |
| 511 </blockquote> | |
| 512 | |
| 513 <h3><b>Target upgrades</b></h3> | |
| 514 <blockquote> | |
| 515 <h3><b>ARM upgrades</b></h3> | |
| 516 | |
| 517 <blockquote> | |
| 518 <p>Lots of work on the arm targets, with the addition of a new armv6l target | |
| 519 and conversion of the armv5l target to | |
| 520 <a href=http://www.linuxfordevices.com/c/a/Linux-For-Devices-Articles/Why-ARMs-EABI-matters/>ARM EABI</a> (which used to be documented <a href=http://www.arm.com/products/DevTools/ABI.html>here</a>, | |
| 521 but ARM screwed up its website and now you have to go | |
| 522 <a href=http://infocenter.arm.com/help/index.jsp?topic=/com.arm.doc.subset.swdev.abi/index.html>here</a>). The armv4l target still provides an ARM v4 | |
| 523 little endian soft float OABI target (which is "the i386 of ARM", meaning it | |
| 524 should run on just about any arm hardware, if a bit slowly). A new | |
| 525 armv4be target is the same as armv4l except big endian.</p> | |
| 526 | |
| 527 <p>A new hw-tct-hammer target supports the <a href=http://www.tincantools.com/product.php?productid=16143>Tin Can Tools hammer/nail board</a>.</p> | |
| 528 </blockquote> | |
| 529 | |
| 530 <h3><b>Updated sparc support, almost works now. (uClibc for sparc still sucks.)</b></h3> | |
| 531 | |
| 532 <blockquote> | |
| 533 <p>The sparc target has also been upgraded to the point where it now gives | |
| 534 a shell prompt. (And immediately dies with a bus error or a hang if you try | |
| 535 to do anything, because uClibc for sparc still doesn't work. The "upgrade" | |
| 536 consisted of statically linking everything because uClibc's dynamic loader | |
| 537 doesn't work for sparc.)</p> | |
| 538 </blockquote> | |
| 539 | |
| 540 <h3><b>PowerPC remains fiddly due to QEMU issues, new powerpc-440fp target</b></h3> | |
| 541 | |
| 542 <blockquote> | |
| 543 <p>PowerPC support in QEMU is | |
| 544 <a href=http://lists.gnu.org/archive/html/qemu-devel/2009-07/msg01007.html>officially unstable</a>, so although FWL's powerpc target hasn't significantly | |
| 545 changed from last release, the version of QEMU in source control no longer | |
| 546 runs it (nor the binary powerpc system images released with FWL 0.9.6) and | |
| 547 QEMU's developers do not consider this a regression. While we search for a new | |
| 548 Linux kernel .config that matches QEMU's current expectations (and await a | |
| 549 release considered "stable"), note that setting HOST_BUILD_EXTRA=1 before | |
| 550 running host-tools.sh will build a version of qemu that does run powerpc and | |
| 551 put it in build/host where run-from-build.sh can find it. (Note also that | |
| 552 building qemu from source still takes significantly longer than the rest of the | |
| 553 host-tools.sh stage combined.)</p> | |
| 554 | |
| 555 <p>A new powerpc-440fp target produces code for the powerpc 440 with hardware | |
| 556 floating point. (Theoretically QEMU's "bamboo" board emulation should | |
| 557 run this, but QEMU doesn't emulate a 440 processor yet. We compromise by | |
| 558 running a ppc440 filesystem under qemu's power mac emulation, to take | |
| 559 advantage of the ppc440 instruction set being almost a subset of full powerpc. | |
| 560 This gets us a shell prompt, but throws illegal instruction errors if you | |
| 561 try to do anything fancy.)</p> | |
| 562 | |
| 563 <p>(Note that powerpc-440fp is not a hw-target for powerpc, it's a different | |
| 564 processor instruction set like i586 vs i686. Alas, one that qemu doesn't | |
| 565 properly emulate yet.)</p> | |
| 566 | |
| 567 </blockquote> | |
| 568 | |
| 569 </blockquote> | |
| 570 | |
| 571 <h3><b>Now using last GPLv2 release of GCC, and future plans</b></h3> | |
| 572 | |
| 573 <blockquote> | |
| 574 <p>The upgrade to <b>gcc 4.2.1</b> gives us | |
| 575 <a href=http://gcc.gnu.org/ml/gcc-announce/2007/msg00003.html>the last | |
| 576 GPLv2 licensed version of gcc</a> (thus avoiding | |
| 577 <a href=http://lwn.net/Articles/343608/>various problems</a>). | |
| 578 <a href=http://savannah.gnu.org/forum/forum.php?forum_id=4932>Make 3.81</a> | |
| 579 was already the last GPLv2 release of that project.</p> | |
| 580 | |
| 581 <p>Note that <b>bash 2.05b</b> is still intentionally ancient (to avoid the | |
| 582 bloat of 3.x), and may be replaced with busybox ash as the default FWL shell | |
| 583 in a future release. Similarly, although <b>binutils 2.17</b> was the last | |
| 584 GPLv2 version from the FSF, an upgrade to | |
| 585 <a href=http://ftp.kernel.org/pub/linux/devel/binutils/release.binutils-2.18.50.0.1>the | |
| 586 last GPLv2 release of Red Hat's binutils fork, 2.17.5.0.17</a> is under | |
| 587 consideration for a future release. But mostly the GNU compiler toolchain | |
| 588 has been upgraded as far as possible for the forseeable future, either because | |
| 589 new versions provide no significant benefits or because they're not available | |
| 590 under a license compatible with the Linux kernel's.</p> | |
| 591 | |
| 592 <p>Future upgrades to these packages will either be via individual patches | |
| 593 (maintaining GPLv2 license) or by investigating alternative non-FSF | |
| 594 packages such as OpenBSD's <a href=http://lwn.net/Articles/255558>PCC</a> or | |
| 595 Apple's <a href=http://llvm.org>LLVM</a>. In preparation for support of | |
| 596 alternate compilers, the build scripts have moved from using "gcc" to the | |
| 597 more generic "cc" for the compiler name wherever possible, but currently no | |
| 598 drop-in replacement compiler is available.</p> | |
| 599 | |
| 600 </blockquote> | |
| 601 | |
| 602 <h3><b>Implementation details</b></h3> | |
| 603 | |
| 604 <blockquote> | |
| 605 <p>Each target configuration renamed "details" to "settings", and added | |
| 606 a "description". (This makes Gentoo From Scratch's kconfig easier.)</p> | |
| 607 | |
| 608 <p>The download.sh stage now populates a "packages" directory instead of | |
| 609 "sources/packages", meaning that everything in the sources directory now | |
| 610 comes from the FWL source tarball. To do the equivalent of "make clean" | |
| 611 you can "rm -rf build", and to do a "make distclean" you can | |
| 612 "rm -rf packages build".</p> | |
| 613 | |
| 614 <p>The build no longer deletes the alt-* tarballs when UNSTABLE isn't | |
| 615 set, you must do that by hand if you want an updated alt- version of a | |
| 616 package. The packages/MANIFEST file creation can now use the extended | |
| 617 tarball information to detect git version numbers.</p> | |
| 618 | |
| 619 <p>The === bars now show the current stage name and architecture each | |
| 620 package is being built for. (Pipe the build output to grep "^===" to see | |
| 621 just the start of each new package build.) The same information is sent | |
| 622 to the title bar of your xterm, export NO_TITLE_BAR=1 if you don't want the | |
| 623 build to update the title bar.</p> | |
| 624 | |
| 625 <p>The BUILD_STATIC option now applies to all packages built in | |
| 626 root-filesystem.sh, and can be set from a target configuration's settings file | |
| 627 (as sparc is now doing).</p> | |
| 628 | |
| 629 <p>The BUILD_VERBOSE option passes V=1 to the linux, busybox, and uClibc | |
| 630 builds that otherwise sanitize their output.</p> | |
| 631 | |
| 632 <p>You can now set NATIVE_TOOLCHAIN=only to build just the compiler | |
| 633 and not the other parts (busybox, make, toybox, bash...) This is used | |
| 634 by the canadian cross steps in build.sh to create static cross and native | |
| 635 compilers.</p> | |
| 636 | |
| 637 <p>This release broke up scripts/include.sh so that script just | |
| 638 sets lots of environment variables, and now includes scripts/functions.sh | |
| 639 to define shell functions. The architecture setup (reading architecture | |
| 640 files and creating temporary directories and such) is now done via the | |
| 641 "read_arch_dir $ARCH" shell function, so merely including sources/include.sh | |
| 642 should no longer have significant side effects. Similarly, setupfor now | |
| 643 has an EXTRACT_ONLY environment variable instead of depending on a blank | |
| 644 $ARCH (which host-tools.sh has, despite wanting to snapshot source so it can | |
| 645 build stuff).</p> | |
| 646 | |
| 647 <p>Various fixes to make parallel builds work better. (So it neither leaves | |
| 648 background processes running nor kills the parent shell and closes your | |
| 649 xterm when you hit ctrl-c.) The new "killtree" shell function, | |
| 650 which kills a process and all its children and grandchildren recursively with | |
| 651 pgrep. We also build our own sources/toys/mysetsid.c program with the host | |
| 652 compiler (because the normal command line "setsid" doesn't also do a tcsetpgrp | |
| 653 on stdin so signal handling isn't forwarded to the new session). This should | |
| 654 more reliably allow ctrl-c to exit smoketest.sh and system-image.sh and such, | |
| 655 and let FORK=1 ./buildall.sh stop all its background processes when | |
| 656 interrupted. (Note that smoketest-all.sh also honors FORK=1.)</p> | |
| 657 | |
| 658 <p>The logs from buildall.sh now live in build/logs.</p> | |
| 659 | |
| 660 <p>The new config option ROOT_NODIRS avoids creating the normal set of empty | |
| 661 directories in the new root filesystem. (The old /tools support went | |
| 662 away, but a BUILD_STATIC ROOT_NODIRS build can be extracted into /tools | |
| 663 and used from there. Then either symlink "/lib" to "/tools/lib" or "export | |
| 664 UCLIBC_DYNAMIC_LINKER=/tools/lib/ld-uClibc.so.0" to add more stuff to | |
| 665 /tools natively.)</p> | |
| 666 | |
| 667 <p>The compiler wrapper (sources/toys/ccwrap.c) can now use | |
| 668 architecture-specific WRAPPER_TOPDIR values. (I.E. armv4l-cc could | |
| 669 "export armv4l_WRAPPER_TOPDIR=/path/to/directory".) This makes | |
| 670 canadian cross compiles a lot easier.</p> | |
| 671 </blockquote> | |
| 672 | |
| 927 | 673 <hr> |
| 674 <h2><a name=04-02-2009 />April 2, 2009</h2> | |
| 694 | 675 <p><a href=downloads/firmware-0.9.6.tar.bz2>Version 0.9.6</a> includes |
| 676 Linux 2.6.29 and uClibc 0.9.30.1, now with support for sh4 and upgraded powerpc | |
| 677 support.</p> | |
| 678 | |
| 679 <p>The big news is the <a href=http://impactlinux.com/code/gfs/>Gentoo | |
| 680 From Scratch</a> project, which extends a FWL system image into a Gentoo | |
| 681 Stage 1 environment, building natively inside qemu.</p> | |
| 682 | |
| 683 <p>The <a href=documentation.html>documentation</a> has been extensively | |
| 684 rewritten (but needs more). The source now contains a README and each image | |
| 685 has a usr/src/MANIFEST file listing the packages it built from.</p> | |
| 686 | |
| 687 <p>The cross and native toolchains now include ldd, readelf, and | |
| 688 ldconfig. Added support for hardware targets (an unfinished example | |
| 689 of which is hw-wrt610n) that use the same cross compiler and system | |
| 690 image as a qemu platform, but build/package a different kernel to boot | |
| 691 on actual hardware.</p> | |
| 692 | |
| 693 <p>Several new build options:</p> | |
| 694 <ul> | |
| 695 <li><p><b>$SYSIMAGE_TYPE</b> defaults to "ext2" but can now | |
| 696 produce and boot "initramfs" images as well. (And squashfs, but that doesn't | |
| 697 work yet due to missing features in squashfs tools version 3.4.)</p></li> | |
| 698 <li><p>Setting <b>$HOST_BUILD_EXTRA</b> compiles qemu 0.10.1 in host-tools.sh. | |
| 699 You currently need to do this to run sh4 or powerpc, 0.10.1 has some bugs | |
| 700 needing patches. Not on by default because it takes a _long_ time.</p></li> | |
| 701 <li><p><b>$NO_CLEANUP</b> keeps source around after builds for debugging purposes.</p></li> | |
| 702 <li><p><b>$SYSIMAGE_HDA_MEGS</b> lets you control the size of the ext2 system images.</p></li> | |
| 703 <li><p><b>$SNAPSHOT_SYMLINK</b> lets the extracted source live on a different | |
| 704 filesystem than the build happens on. (Once the updated squashfs userspace | |
| 705 tools ship, build-static-toolchains.sh may be updated to use this.)</p></li> | |
| 706 <li><p><b>$CROSS_SMOKE_TEST</b> use qemu application emulation to test run hello | |
| 707 world program at the end of the cross compiler build stage.</p></li> | |
| 708 <li><p><b>$SKIP_STAGE_TARBALLS</b> don't create tarballs of each stage, | |
| 709 just populate the directories.</p></li> | |
| 710 <li><p><b>$NATIVE_RETROFIT_CXX</b> retroactively add uClibc++ to the cross | |
| 711 compiler tarball during the native build stage.</p></li> | |
| 712 </ul> | |
| 713 | |
| 714 <p>The run-emulator.sh scripts of system images have several new options, | |
| 715 do "./run-emulator.sh --help" for a list. Takes several environment | |
| 716 variables such as $QEMU_EXTRA and $KERNEL_EXTRA. Root filesystems can | |
| 717 now run in read only mode with "KERNEL_EXTRA=ro".</p> | |
| 718 | |
| 719 <p>Lots of build infrastructure upgrades. The build stages have been | |
| 720 reorganized somewhat (most noticeably package-mini-native.sh is now called | |
| 721 system-image.sh). The "sources/packages" directory has moved up a | |
| 722 directory (to separate repository files from stuff downloaded at runtime). | |
| 723 Upgrades to the cc wrapper and the USE_UNSTABLE infrastructure. Better | |
| 724 stripping of the cross compilers and system images, so everything's a bit | |
| 725 smaller. The mirror list now lives in download.sh. New buildall.sh is a | |
| 726 wrapper around build.sh. New build-static-toolchains.sh builds them under | |
| 727 qemu; set FORK=1 to build them in paralell just like buildall.sh. The | |
| 728 ext2 system images are now built at a small size with genext2fs and | |
| 729 then expanded with resize2fs (because genext2fs slows down exponentially | |
| 730 as size increases; this means e2fsprogs is built in host-tools.sh now). | |
| 731 Distcc has been upgraded, and should work more reliably now.</p> | |
| 732 | |
| 733 <p>Too many little bug fixes to list.</p> | |
| 734 | |
| 927 | 735 <hr> |
| 736 <h2><a name=12-16-2008 />December 16, 2008</h2> | |
|
543
e85e59bd76aa
News entry about new mailing list.
Rob Landley <rob@landley.net>
parents:
536
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737 <p>The mailing list moved to firmware at impactlinux.com. The link in |
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536
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738 the nav bar on the left has changed, but the |
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536
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739 <a href=http://www2.them.com:8080/cgi-bin/mailman/listinfo/firmware>old |
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740 archives</a> are still there for the moment.</p> |
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741 |
| 927 | 742 </hr> |
| 743 <h2><a name=12-03-2008 />December 3, 2008</h2> | |
| 523 | 744 <p>After several false starts (I.E. last minute bugs, yes I test this thing |
| 745 before shipping it), | |
| 746 <a href=downloads/firmware-0.9.5.tar.bz2>Version 0.9.5</a> is out, inching | |
| 747 towards a 1.0 release. Lots of new work this time.</p> | |
| 748 | |
| 749 <p>The biggest news is uClibc 0.9.30 and uClibc++ 0.2.2. The native toolchain | |
| 750 now supports C++, hooked up to distcc and everything.</p> | |
| 751 | |
| 752 <p>The <a href=documentation.html>documentation</a> has been extensively | |
| 753 rewritten. (There's always more to do, but most of it isn't horribly out | |
| 754 of date anymore.)</p> | |
| 755 | |
| 756 <p>The packaging stage now uses genext2fs instead of User Mode Linux, so | |
| 757 the most brittle part of the build has been removed. FWL can now fully | |
| 758 rebuild itself under itself, all the way through the packaging stage.</p> | |
| 759 | |
| 760 <p>My personal website's getting a touch overwhelmed, so a higher bandwidth | |
| 761 site is now available at | |
| 762 <a href=http://impactlinux.com/fwl>impactlinux.com</a>. This should become | |
| 763 the new primary website going forward.</p> | |
| 764 | |
| 765 <p>BusyBox has also been upgraded (to 1.13.0), and the new USE_UNSTABLE | |
| 766 infrastructure allows test versions of any package to be downloaded and built | |
| 767 without forking the build scripts, so future package upgrades can be dealt | |
| 768 with as side projects without blocking other important work.</p> | |
| 769 | |
| 770 <p>The packaging stage now uses genext2fs instead of User Mode Linux, so | |
| 771 the most brittle part of the build has been removed. FWL can now fully | |
| 772 rebuild itself under itself, all the way through the packaging stage.</p> | |
| 773 | |
| 774 <p>The old forkbomb script has been replaced with sources/build-all-targets.sh. | |
| 775 with an argument --fork to build all targets in parallel, and "--fork 3" | |
| 776 to limit the parallelism. This script can run from a cron job, producing | |
| 777 a "buildall" directory with tarballs, compressed logs, and a README file | |
| 778 listing the version of each package. The environment variable USE_STATIC_HOST | |
| 779 specifies an $ARCH to create statically linked cross compilers | |
| 780 for. (The build will then try to use them for the later stages, | |
| 781 and won't get far if you specify an arch that can't run on the host.)</p> | |
| 782 | |
| 783 <p>The include.sh script has been broken up, with a new sources/functions.sh | |
| 784 containing shell functions (like download, setupfor, and cleanup) and | |
| 785 a new "config" setting the user-editable environment variables that control | |
| 786 the build. Several of these variables have been renamed and their number has | |
| 787 grown. You can now specify the colors for each build stage using the variables | |
| 788 at the end of config.</p> | |
| 789 | |
| 790 <p>Building mini-native in a Linux From Scratch style /tools directory is | |
| 791 no longer the default. Instead set NATIVE_TOOLSDIR=1 if you want that | |
| 792 kind of layout instead of a more conventional layout. (Similarly, | |
| 793 NATIVE_TOOLCHAIN=1 now enables the native toolchain, but that variable | |
| 794 defaults to enabled in config.)</p> | |
| 795 | |
| 796 <p>See the <a href=documentation.html>docs</a> for details.</p> | |
| 797 | |
| 927 | 798 <hr> |
| 799 <h2><a name=08-06-2008 />August 6, 2008</h2> | |
|
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800 <p><a href=downloads/firmware-0.9.0.tar.bz2>Version 0.9.0</a> is out |
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801 (<a href=http://landley.net/hg/firmware/shortlog/378>changeset 378</a>) |
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802 and can rebuild itself under itself. (The packaging step still requires User |
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803 Mode Linux to create ext2 images, which only works on x86 and x86-64 hosts. |
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804 The next release should replace that with something more portable.) |
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805 The root filesystem is now based on BusyBox 1.11.1 (plus a few bug fixes).</p> |
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806 |
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807 <p>The prebuilt binary images have been moved into their own |
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808 <a href=downloads/binaries>binaries</a> directory. |
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809 The prebuilt binary <a href=downloads/binaries/cross-compiler>cross |
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810 compilers</a> are statically linked against uClibc for better portability. |
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811 Updated the <a href=downloads/README>README</a> to better describe the |
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812 contents of the <a href=downloads/binaries/system-image>system-image |
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|
813 tarballs</a>.</p> |
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Rob Landley <rob@landley.net>
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814 |
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815 <p>The forkbomb.sh script can now take a number of parallel targets to |
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816 launch, for example "./forkbomb.sh --fork 3". (The resulting display is kind |
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Rob Landley <rob@landley.net>
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817 of horrible but the out-$ARCH.txt files are still legible.) Leaving off the |
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818 number still builds all targets in parallel, with the original display.</p> |
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819 |
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820 <p>The include.sh script was reorganized so that interesting environment |
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|
821 variables the user might want to export for themselves are set near the top |
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822 of the script. Currently this includes:</p> |
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Rob Landley <rob@landley.net>
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|
823 |
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Rob Landley <rob@landley.net>
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824 <ul> |
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825 <li><p><b>BUILD_SHORT</b> - Makes the mini-native.sh stage skip building |
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Rob Landley <rob@landley.net>
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826 development tools. The resulting mini-native root filesystem contains uClibc |
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827 and busybox, but nothing else. (Export "BUILD_SHORT=headers" to put back the |
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828 toolchain headers for use by another compiler, such as tinycc.)</p> |
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829 |
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Rob Landley <rob@landley.net>
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830 <li><p><b>BUILD_STATIC</b> - Tell cross-compiler.sh to create static |
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Rob Landley <rob@landley.net>
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|
831 binaries, for a more portable cross compiler toolchain. (If you want them |
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Rob Landley <rob@landley.net>
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832 linked against uClibc, build a mini-native for your host, chroot into it, and |
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|
833 then rebuild under that.)</li> |
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Rob Landley <rob@landley.net>
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834 |
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835 <li><p><b>PREFERRED_MIRROR</b> - Tell download.sh to fetch packages from a |
|
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836 non-default location (falling back to the standard mirror list if it can't get |
|
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Rob Landley <rob@landley.net>
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|
837 one from there).</p></li> |
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838 |
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Rob Landley <rob@landley.net>
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|
839 <li><p><b>RECORD_COMMANDS</b> - Record a list of all command lines used during |
|
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Rob Landley <rob@landley.net>
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|
840 each build stage log files named "cmdlines.$STAGE.$PACKAGE" under the build |
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Rob Landley <rob@landley.net>
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|
841 directory. Each file can be turned into a list of the command names used via |
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Rob Landley <rob@landley.net>
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|
842 "awk '{print $1}' build/cmdlines* | sort -u". The script |
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Rob Landley <rob@landley.net>
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|
843 sources/toys/report_recorded_commands.sh gives a report of all commands |
|
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Rob Landley <rob@landley.net>
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|
844 used by each package after a call to "RECORD_COMMANDS=1 ./forkbomb.sh". |
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Rob Landley <rob@landley.net>
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|
845 (This is an easy way to find out exactly what environmental dependencies a |
|
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846 package needs to build, or at least what it uses out of $PATH).</p></li> |
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|
847 </ul> |
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848 |
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849 <p>Updated documentation is in progress...</p> |
|
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Rob Landley <rob@landley.net>
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|
850 |
| 927 | 851 <hr> |
| 852 <h2><a name=06-06-2008 />June 6, 2008</h2> | |
|
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853 <p><a href=downloads/firmware-0.4.0.tar.bz2>Version 0.4.0</a> is out |
|
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Rob Landley <rob@landley.net>
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|
854 (<a href=http://landley.net/hg/firmware/shortlog/345>changeset 345</a>), |
|
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|
855 with kernel 2.6.25.4 and the "distcc trick" working out of the box.</p> |
|
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Rob Landley <rob@landley.net>
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856 |
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Rob Landley <rob@landley.net>
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857 <p>The distcc trick accelerates a native build by calling out to the |
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Rob Landley <rob@landley.net>
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|
858 cross compiler. To use it, download the appropriate cross-compiler-$ARCH and |
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859 system-image-$ARCH tarballs, run the "run-with-distcc.sh" from the system image |
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860 directory with the path to the cross compiler directory as its first argument. |
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Rob Landley <rob@landley.net>
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861 (You need to have distcc installed on the host system.)</p> |
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862 |
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863 <p>After building from source, the cross-compiler and system-image directories |
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Rob Landley <rob@landley.net>
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864 remain in the build directory. The "emulator-build.sh" runs these with |
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865 distcc acceration set up. The script "smoketest.sh" is a wrapper |
|
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Rob Landley <rob@landley.net>
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866 around emulator-build.sh which feeds a script into qemu's stdin to compile |
|
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867 and run a multi-threaded "hello world" under the emulator, using distcc and |
|
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|
868 the cross compiler.</p> |
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|
869 |
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870 <p>If smoketest.sh works for a platform, it means a lot of stuff worked to get |
|
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|
871 that far. The cross compiler worked to build the system, and the emulated |
|
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872 system booted so QEMU, the uClibc config, and the kernel config agreed. |
|
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873 The emulated system has a working virtual hard drive and serial port, and for |
|
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874 distcc to work it has a working virtual network connection. Running "make" |
|
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875 would also require a working realtime clock.</p> |
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|
876 |
|
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877 <p>The seven commands missing in order to run the FWL build under itself |
|
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Rob Landley <rob@landley.net>
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878 are bzip2, sort, diff, wget, install, od, and find. (The busybox versions, |
|
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879 where available, had a bug, and they're not in toybox yet.) I'm trying to |
|
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880 get those in for the next release in September.</p> |
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881 |
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882 <p>Sorry I missed a release back in April. Shouldn't happen again.</p> |
|
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|
883 |
| 927 | 884 <hr> |
| 885 <h2><a name=01-29-2008 />January 29, 2008</h2> | |
|
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886 <p><a href=downloads/firmware-0.3.1.tar.bz2>Version 0.3.1</a> is out |
|
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|
887 (<a href=http://landley.net/hg/firmware/shortlog/275>changeset 275</a>), with |
|
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Rob Landley <rob@landley.net>
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888 kernel 2.6.24. The <a href=downloads/images>images</a> |
|
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889 are now tarballs each containing the ext2, zImage, and run script files. |
|
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|
890 The run scripts now run qemu-setup.sh by default so /proc, /sys, /dev |
|
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891 and the virtual network are initialized, and the default shell is busybox |
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892 ash (so cursor keys and history work).</p> |
|
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893 |
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894 <p>Sparc is still broken (tracked it down to a dynamic linking bug, I think, |
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895 haven't fixed it yet) and m68k is failing to build with an internal compiler |
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896 error (next release I should upgrade the compiler). All the other targets |
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897 have a working virtual network, and all but powerpc exit qemu when you |
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898 exit the PID 1 command shell.</p> |
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899 |
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900 <p>Building on an x86-64 host< should no longer be insanely slow (the |
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901 gcc-min-heapsize arguments that allow 32-bit hosts to build in |
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902 128 megs of ram do very impolite things to 64-bit hosts), and the resulting |
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903 x86-64 cross compiler should now be properly relocatable.</p> |
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904 |
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905 <p>Better build dependency tracking: the host-tools script is now |
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906 populating a single directory with all the commands needed by the build, and |
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907 restricting $PATH to that directory (so it can't accidentally call any |
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908 commands that aren't explicitly listed). It's building toybox and busybox to |
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909 provide most of these commands (the remaining ones are listed towards the end |
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910 of include.sh), and creating symlinks to the remaining ones out |
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911 of the original $PATH. This allows it to build on a wider range of host |
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912 distributions.</p> |
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913 |
| 927 | 914 <hr> |
| 915 <h2><a name=11-02-2007 />November 2, 2007</h2> | |
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916 <p><a href=downloads/firmware-0.3.0.tar.bz2>Version 0.3.0</a> is out |
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917 (changeset 242), with kernel 2.6.23. PowerPC finally works under |
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918 qemu (network and everything), and it's building a m68k target |
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919 (although I have no emulator to run that). That means there are |
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920 ten targets, of which eight run under qemu. (Sparc is still |
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921 broken, let me know if anybody actually cares.)</p> |
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922 |
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923 <p>The new "./forkbomb.sh --fork" script builds all the targets in |
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924 parallel, or use --nofork if you haven't got the memory for that |
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925 (and --watch to watch and existing build if you ctrl-c out of |
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926 the display before it's done).</p> |
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927 |
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928 <p>The build is now smarter about extracting only one copy of the |
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929 source code (in build/sources) and re-using it for multiple builds, |
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930 building out of tree (via cp -rs to create a tree full of symlinks |
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931 so the package doesn't need native out-of-tree support).</p> |
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932 |
| 927 | 933 <hr> |
| 934 <h2><a name=09-02-2007 />September 2, 2007</h2> | |
|
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935 <p>Added <a href=new_platform.html>a porting guide</a>. I'm working on |
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936 m68k, ppc, big endian arm, and maybe blackfin targets for the next release, |
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937 and thought other people might be interested in the process. (The vast |
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938 majority of it is fiddly debugging. These are the other steps.)</p> |
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939 |
| 927 | 940 <hr> |
| 941 <h2><a name-06-27-2007 />June 27, 2007</h2> | |
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942 <p><a href=downloads/firmware-0.2.2.tar.bz2>Version 0.2.2</a> is out |
|
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|
943 (changeset 185). Using uClibc 0.9.29 release, several small bugfixes, |
|
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Rob Landley <rob@landley.net>
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944 new mips big-endian config, actually work when /bin/sh->dash (mostly |
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945 by explicitly saying /bin/bash everywhere), automatically detect |
|
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946 the number of CPUs in the machine to feed -j to make, and better |
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Rob Landley <rob@landley.net>
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|
947 diagnostic output.</p> |
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Rob Landley <rob@landley.net>
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|
948 |
| 927 | 949 <hr> |
| 950 <h2><a name=04-09-2007 />April 9, 2007</h2> | |
|
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951 <p><a href=downloads/firmware-0.2.1.tar.bz2>Version 0.2.1</a> is out |
|
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|
952 (changeset 156). Significant upgrades to armv4l: the native compiler works |
|
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953 now, and it's using soft-float. Added armv5l and i586 targets to show how |
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|
954 to do that kind of variant. Added preliminary powerpc support (although |
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|
955 qemu can't run it yet). Reorganized the download directory and rewrote |
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Rob Landley <rob@landley.net>
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|
956 the <a href=downloads/README>README</a>. Added squashfs back (the kernel |
|
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|
957 supports it, but it's not using it yet). Moved uClibc to miniconfig. |
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Rob Landley <rob@landley.net>
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|
958 (Yes, the patch for this is huge, and yes I need to push it all upstream into |
|
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Rob Landley <rob@landley.net>
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959 the Linux kernel. On the bright side, this one builds on a host that doesn't |
|
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960 have curses installed.) Stopped trying to build qemu (at least until they |
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|
961 get the gcc 3.x dependencies cleaned out), now just warn if it's not there |
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Rob Landley <rob@landley.net>
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|
962 (so far the build only uses it to sanity-test the cross compiler, which is |
|
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Rob Landley <rob@landley.net>
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|
963 now skipped automatically if it's not there).</p> |
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Rob Landley <rob@landley.net>
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|
964 |
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965 <p>I note that some versions of Ubuntu (Edgy and up) are pushing a political |
|
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Rob Landley <rob@landley.net>
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|
966 agenda. They install bash, but point /bin/sh to dash instead. (So why |
|
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Rob Landley <rob@landley.net>
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967 install bash if you're not going to use it?) This breaks all sorts of things, |
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Rob Landley <rob@landley.net>
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968 and if somebody can tell me how to force make to run "/bin/bash" instead of |
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Rob Landley <rob@landley.net>
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969 "/bin/sh", I'll consider trying to deal with the mess. Until then, I suggest |
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Rob Landley <rob@landley.net>
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|
970 "rm /bin/sh; ln -s bash /bin/sh" to get a working system. (I'm no fan of |
|
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|
971 bash, but dash is just broken.)</p> |
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Rob Landley <rob@landley.net>
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|
972 |
|
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Rob Landley <rob@landley.net>
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|
973 <p>(Those of you who use vi and want to be able to use the cursor keys while |
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Rob Landley <rob@landley.net>
parents:
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|
974 in insert mode might want to do something similar with vi->vim. Ubuntu seems |
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|
975 to be trying to train users to change their habits. Dog biscuits would be a |
|
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976 more honest approach.)</p> |
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977 |
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978 <p>Update: I've been pointed at |
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979 <a href=https://wiki.ubuntu.com/DashAsBinSh>this</a> as evidence Ubuntu isn't |
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980 pushing a political agenda. Ok, maybe it's just really bad technical judgement. |
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981 Are they honestly saying that people write shell scripts for the speed? And |
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982 how do you make a size argument and then install bash by default in ADDITION |
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983 to the other shell? Boggle. In 1991 after Linus Torvalds taught his term |
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984 program to understand the minix filesystem so he could upload and download |
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|
985 without rebooting, he taught it to handle the system calls of bash so he could |
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|
986 rm/mv/mkdir without rebooting. That's where Linux 0.0.1 |
|
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987 came from. Bash was the default Linux shell _before_ 0.0.1. Be very |
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988 careful messing with that kind of a de-facto standard, guys. Dash is |
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989 garbage. Background a process with & and then hit ctrl-c: it'll kill it. |
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990 It doesn't understand blah/{blah,blah} file list syntax. It can't do |
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991 "source file.sh" (just ". file.sh", which is unreadable). I repeat: I'm not a |
|
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992 fan of bash (yeah, the bloat's getting crazy), but dash is broken.</p> |
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993 |
|
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994 <p>And that still doesn't explain why "vi" can't use the cursor keys in |
|
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|
995 insert mode, but "vim" can...</p> |
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996 |
| 927 | 997 <hr> |
| 998 <h2><a name=03-06-2007 />March 6, 2007</h2> | |
|
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999 <p>Version 0.2.0 is out. This one builds ext2 images which can boot up to a |
|
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|
1000 shell prompt under qemu. This works on i686, armv4l, x86_64, and mipsel. |
|
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1001 (Sparc's broken. Anyone who cares about sparc is welcome to debug it.)</p> |
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|
1002 |
|
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|
1003 <p>There are now prebuilt ext2 image files in the download directory. |
|
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|
1004 The kernels are in the mini-native tarballs. (Yeah, I should repackage that |
|
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1005 next release.) The system emulator invocation for each platform is |
|
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1006 the appropriate sources/configs file, and run-mini-native.sh invokes 'em.</p> |
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|
1007 |
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1008 <p>The mailing list is in the usual place if you have any questions.</p> |
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1009 |
| 927 | 1010 <hr> |
| 1011 <h2><a name=01-14-2007 />January 14, 2007</h2> | |
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1012 <p>There's a new irc channel for the project, #firmware on freenode.</p> |
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Rob Landley <rob@landley.net>
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1013 |
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Add project summary page to website, moving news to its own page.
Rob Landley <rob@landley.net>
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1014 <p><a href=http://landley.net/hg/firmware?cl=88>Changeset 88</a> builds |
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3eeb77934265
Add project summary page to website, moving news to its own page.
Rob Landley <rob@landley.net>
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1015 i686, x86_64, armv4l, mips, and sparc. I've made a release tarball of |
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3eeb77934265
Add project summary page to website, moving news to its own page.
Rob Landley <rob@landley.net>
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1016 that (<a href=downloads/firmware-0.1.1.tar.bz2>firmware 0.1.1</a>, "It works |
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3eeb77934265
Add project summary page to website, moving news to its own page.
Rob Landley <rob@landley.net>
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1017 for me"), and updated the prebuilt cross-compiler tarballs in the |
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3eeb77934265
Add project summary page to website, moving news to its own page.
Rob Landley <rob@landley.net>
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1018 <a href=downloads>downloads</a> directory. I've added a big README and |
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3eeb77934265
Add project summary page to website, moving news to its own page.
Rob Landley <rob@landley.net>
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1019 prebuilt mini-native tarballs for each platform (although packing them up into |
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3eeb77934265
Add project summary page to website, moving news to its own page.
Rob Landley <rob@landley.net>
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1020 something qemu can boot is currently left as an exercise for the reader).</p> |
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3eeb77934265
Add project summary page to website, moving news to its own page.
Rob Landley <rob@landley.net>
parents:
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1021 |
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3eeb77934265
Add project summary page to website, moving news to its own page.
Rob Landley <rob@landley.net>
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1022 <p>Speaking of which, I'm currently working on adding ext2 packaging |
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3eeb77934265
Add project summary page to website, moving news to its own page.
Rob Landley <rob@landley.net>
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1023 (via <a href=http://landley.net/code/toybox>toybox</a>) to the build scripts, |
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3eeb77934265
Add project summary page to website, moving news to its own page.
Rob Landley <rob@landley.net>
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1024 so qemu system emulation can boot the result and then run the next stage |
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3eeb77934265
Add project summary page to website, moving news to its own page.
Rob Landley <rob@landley.net>
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1025 automatically.</p> |
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3eeb77934265
Add project summary page to website, moving news to its own page.
Rob Landley <rob@landley.net>
parents:
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1026 |
| 927 | 1027 <hr> |
| 1028 <h2><a name=12-28-2006 />December 28, 2006</h2> | |
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1029 <p><a href=http://landley.net/hg/firmware?cl=68>Changeset 68</a> builds |
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3eeb77934265
Add project summary page to website, moving news to its own page.
Rob Landley <rob@landley.net>
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1030 a native build environment with a working toolchain. And in celebration, I've |
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3eeb77934265
Add project summary page to website, moving news to its own page.
Rob Landley <rob@landley.net>
parents:
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1031 revamped the website with an actual navigation bar and content and such.</p> |
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3eeb77934265
Add project summary page to website, moving news to its own page.
Rob Landley <rob@landley.net>
parents:
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1032 |
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3eeb77934265
Add project summary page to website, moving news to its own page.
Rob Landley <rob@landley.net>
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1033 <p>I should put out a release soon.</p> |
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3eeb77934265
Add project summary page to website, moving news to its own page.
Rob Landley <rob@landley.net>
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1034 |
| 927 | 1035 <hr> |
| 1036 <h2><a name=12-05-2006 />December 5, 2006</h2> | |
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Rob Landley <rob@landley.net>
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1037 <p><a href=http://landley.net/hg/firmware?cl=27>Changeset 27</a> builds |
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Add project summary page to website, moving news to its own page.
Rob Landley <rob@landley.net>
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1038 a relocatable armv4l cross-compile toolchain! Download the tarball, |
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Rob Landley <rob@landley.net>
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1039 run ./download.sh, then run ./build.sh, then grab the "build/cross-compiler" |
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3eeb77934265
Add project summary page to website, moving news to its own page.
Rob Landley <rob@landley.net>
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1040 directory and use "bin/armv4l-unknown-linux-gnu-gcc" out of that (which |
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3eeb77934265
Add project summary page to website, moving news to its own page.
Rob Landley <rob@landley.net>
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1041 I admit is a bit of a mouthful, for which I blame the FSF).</p> |
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3eeb77934265
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Rob Landley <rob@landley.net>
parents:
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1042 |
| 927 | 1043 <hr> |
| 1044 <h2><a name=08-06-2006 />August 6, 2006</h2> | |
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1045 <p>Mecurial repository created. Nothing to see yet, move along...</p> |
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0da87d1ef528
Update the web page. Put the left-side nav bar back, move about page to "about.html" and make news.html the default index. Add architectures page. Note that IRC discussion is now on #edev.
Rob Landley <rob@landley.net>
parents:
879
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1046 |
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0da87d1ef528
Update the web page. Put the left-side nav bar back, move about page to "about.html" and make news.html the default index. Add architectures page. Note that IRC discussion is now on #edev.
Rob Landley <rob@landley.net>
parents:
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1047 <!--#include file="footer.html" --> |