q4.11: toolchain process

Making a Toolchain<or>

Abusing Launchpad<or>

Fun with process

Michael Hope <michael.hope@linaro.org>r2

bzr branch lp:~michaelh1/+junk/toolchain-process

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About Toolchain

see the flyer for more

3Everything is managed through Launchpad

Icons from Crystal Project

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Schedule!

AgressiveHard

Mitigation

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Bugs!

SLAProcessTriagingLimits

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

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ICE in int_mode_for_mode, at stor-layout.c:490https://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.

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New work!

BlueprintsPerformance, Features

Prioritise through meetingsSpawn

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

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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

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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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