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7
8 Welcome brave fool. Don't Panic! The writer of this README is an even bigger
9 fool than you could be (even if old Ben wonders if those who follow fools are
10 more foolish).
11
12 So here's where you get started building illumos on ARM.
13
14 Step 1) You need to get a build environment set up. There's the easy way and the
15 fun way.
16
17 Easy way:
18
19 cd $HOME
20 curl -O https://fingolfin.org/illumos/arm/armtc.tar.gz
21 pfexec tar xvzf armtc.tar.gz -C /
22 find /opt/armtc
23
24 Fun way:
25
26 Using a normal i386 on i386 build:
27 cd usr/src
28 dmake setup
29 cd cmd/sgs
30 dmake install
31
32 mkdir -p /opt/armtc/lib/amd64 /opt/armtc/usr/bin/amd64
33 cd /opt/armtc/lib/
34 ln -s amd64 64
35 cd ../usr/bin
36 ln -s amd64 64
37
38 Then from your proto area, install the following:
39 o /usr/bin/ld
40 o /usr/bin/amd64/ld
41 o /lib/libld.so.4
42 o /lib/amd64/libld.so.4
43 o /lib/liblddbg.so.4
44 o /lib/amd64/liblddb.so.4
45 o /lib/libelf.so.1
46 o /lib/amd64/libelf.so.1
47
48 Now that's all set go grab illumos-arm-extra (git clone
49 gitosis@zelgadis.fingolfin.org:illumos-arm-extra.git) and build that. You'll
50 need something like:
51
52 gmake ARCH=arm STRAP=strap LD_ALTEXEC=/opt/armtc/usr/bin/ld install
53
54 Once that's done, you'll need to fix up the rpath there. so from the root of
55 that workspace run:
56
57 ./tools/setrpath proto-arm/usr/ /opt/armtc/usr/lib:/opt/gcc/4.4.4/lib:/lib:/usr/lib
58
59 Finally, you can copy all of that into your arm compiler toolchain directory
60 (use pfexec / sudo as appropriate):
61
62 cp -r proto-arm/usr /opt/armtc/
63
64 Step 2) Set up illumos.sh
65
66 In a fresh workspace, you're going to want to set up your illumos.sh with the
67 following:
68
69 # Enable GCC 4 default
70 export __GNUC="";
71 export CW_NO_SHADOW=1
72 export MACH=arm;
73 export NATIVE_MACH=i386;
74 export BUILD64="#"
75
76 # Re-set all this MACH-based crud
77 REF_PROTO_LIST=$PARENT_WS/usr/src/proto_list_${MACH}; export REF_PROTO_LIST
78 ROOT="$CODEMGR_WS/proto/root_${MACH}"; export ROOT
79 PARENT_ROOT=$PARENT_WS/proto/root_$MACH; export PARENT_ROOT
80 PKGARCHIVE="${CODEMGR_WS}/packages/${MACH}/nightly"; export PKGARCHIVE
81 unset GCC_ROOT GNU_ROOT CW_GCC_DIR
82 export i386_GCC_ROOT=/opt/gcc/4.4.4
83 export arm_GCC_ROOT=/opt/armtc/usr
84 export i386_GNU_ROOT=/usr/sfw
85 export arm_GNU_ROOT=/opt/armtc/usr/gnu
86
87 #
88 # XXX our gcc isn't called ./usr/bin/gcc fix it up via CW env vars for now.
89 #
90 export CW_arm_GCC=/opt/armtc/usr/bin/arm-pc-solaris2.11-gcc-4.6.3
91
92 #
93 # XXX We need to set CPP to our specific cpp, not the generic /usr/ccs/lib/cpp
94 # as that's rather, well, x86.
95 #
96 export CPP=/opt/armtc/usr/lib/cpp
97 export AW_CPP=/opt/armtc/usr/lib/cpp
98 export LD_ALTEXEC=/opt/armtc/usr/bin/ld
99
100 Step 3) Start your build engines
101
102 Once you've done that, you're doing to need to need to use the *new* bldenv to
103 get started building. For the first time you can go ahead and do something like:
104
105 cd usr/src
106 ksh93 ./tools/scripts/bldenv.sh ../../illumos.sh
107
108 This is really just a bit of a bootstrapping weirdness. Once that's done you can
109 go ahead and continue on.
110
111 As a part of this you should see an important two lines:
112
113 Cross-building enabled
114 Targeting arm on i386
115
116 If you don't, stop. illumos.sh is not configured correctly.
117
118
119 Once you have that you can get going. Start off with a resounding:
120
121 dmake setup
122
123 Following this, you can build the kernel as far as we have it for ARM
124
125 cd uts; dmake install
126
127 You now have a lovely unix and boot_archive pair in bcm2835/unix (Raspberry
128 Pi) and qvpb/unix (qemu versatilepb).
129
130 Step 4) Boot
131
132 Now that you have the gate built, you can try to boot the kernel. This is
133 where things diverge between qemu and the Raspberry Pi.
134
135 Booting qemu is very easy:
136
137 qemu-system-arm \
138 -kernel $PROTO/platform/qvpb/kernel/loader \
139 -initrd $PROTO/platform/qvpb/kernel/initrd \
140 -machine versatilepb \
141 -cpu arm1176 \
142 -m 512 \
143 -no-reboot \
144 -nographic \
145 -append 'kernel /platform/qvpb/kernel/unix -Bconsole=uart'
146
147 The loader and kernel messages should appear in the same terminal.
148
149 Booting on real hardware is a bit more involved.
150
151 a) Create a FAT16 or FAT32 partition on the SD card. You'll want it to be
152 at least 40 MB.
153
154 b) Create a config.txt on the partition:
155
156 gpu_mem=64
157 kernel=loader
158 initramfs initrd 0x00800000
159
160 c) Create a cmdline.txt on the partition:
161
162 kernel /platform/bcm2835/kernel/unix -Bconsole=uart
163
164 d) Place Raspberry Pi firmware onto the partition. You can download
165 latest firmware from
166 https://github.com/raspberrypi/firmware/tree/master/boot. The firmware
167 from January 24th, 2015 is known to work.
168
169 0e52c8cdbfd21631746d6fcdc8f2750af39f4287 bootcode.bin
170 aba25d795eaddafd5c8ece3de18873b9928eb6f7 fixup_cd.dat
171 38e55d60f896738eec30d0ca4f62b68e48e99184 fixup.dat
172 4867e6eab84bb4138e812993112b6a05b7930b89 fixup_x.dat
173 fa993851acba366d9e37d59a1d9e9de84b19173f start_cd.elf
174 356060e0f44742d8835294a211b812efcac29f66 start.elf
175 b7f01f90d995a36c9d765fd1f4d95a5fcdfd7e41 start_x.elf
176
177 e) Copy $PROTO/platform/bcm2835/kernel/{loader,initrd} onto the partition.