Resource: Q4.11 Name: Toolchain Process Date: 28-11-2011 Speaker: Michael Hope

1. Making a Toolchain
<or>
Abusing Launchpad
<or>
Fun with process
Michael Hope <michael.hope@linaro.org>
r2
bzr branch lp:~michaelh1/+junk/toolchain-process

2. 2
About Toolchain
see the flyer for more

3. 3
Everything is managed through Launchpad
Icons from Crystal Project

4. 4
Schedule!
Agressive
Hard
Mitigation

5. 5
Bugs!
SLA
Process
Triaging
Limits

6. 6
http://apus.seabright.co.nz/helpers/tickets/gcc-linaro?group_by=lint

7. 7
ICE in int_mode_for_mode, at stor-layout.c:490
https://bugs.launchpad.net/gcc-linaro/+bug/879725
Thank you for the bug report. I've confirmed this with gcc-linaro-4.6-
2011.10 on ARM:
michaelh@ursa2:~/linaro/bugs$
/tools/toolchains/arch/armv7l/gcc-linaro-4.6-2011.10-armv7l-
natty-cbuild186-ursa3-cortexa9r1/bin/g++ -O2 -mcpu=cortex-a8
-fmodulo-sched -fmodulo-sched-allow-regmoves -c matrix.i
frameworks/base/opengl/libagl/matrix.cpp: In function 'void
android::invert(GLfloat*, const GLfloat*)':
frameworks/base/opengl/libagl/matrix.cpp:584:1: internal
compiler error: in int_mode_for_mode, at stor-layout.c:490
As noted in the report, the work-arounds are to build for A9 or to
disable SMS. The fault does not exist in gcc-linaro-4.6-2011.09, gcc-
4.5.3, gcc-4.6.1, or a recent-ish gcc trunk r178624.
I've set it to medium priority as it is a ftbfs, occurs at high
optimisation levels, and was introduced or exposed through our
changes.

8. 8
New work!
Blueprints
Performance, Features
Prioritise through meetings
Spawn

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http://apus.seabright.co.nz/helpers/backlog/project/gcc-linaro

10. 10
Flow of a patch

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Linaro Upstream
Pick,
Implement,
Discuss,
Review,
Commit,
Shake down,
Backport,
Review,
Commit,
Release.

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https://code.launchpad.net/gcc-linaro/+activereviews

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Automate!

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15. 15

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Release!
see the GCC, GDB, and QEMU release processes

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https://launchpad.net/gcc-linaro/+milestone/4.6-2011.09

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Links
http://people.linaro.org/~michaelh/presentations
http://apus.seabright.co.nz/helpers/
https://launchpad.net/cbuild
https://launchpad.net/tcwg-web

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