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Challenges and discoveries bringing open source software to the PowerPC64LE world.
--client
lca
--show
lca2018
--room guthrie 13705 --force
Next: 14 The Meson Build System - 4+ years of work to become an overnight success
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Marks
Author(s):
Leonardo Bianconi
Location
Guthrie Theatre CB06.03.28
Date
jan Wed 24
Days Raw Files
Start
16:45
First Raw Start
16:10
Duration
0:45:0
Offset
0:34:41
End
17:30
Last Raw End
17:40
Chapters
00:00
0:25:04
Total cuts_time
33 min.
http://lca2018.linux.org.au/schedule/presentation/25/
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PowerPC64 little-endian mode was introduced with POWER8 system family, making it easier to port x86_64 applications to it. This is the main target of technologies provided by OpenPOWER Foundation, which is a collaboration for Power Architecture products. This talk will show the biggest challenges found to port a software initially designed to x86_64 architecture, and what were the solutions adopted, beyond expose some differences between both architectures. Some topics are: * How to handle the frame differences. * Push/Pop values dynamically in a PPC64 frame. * Adapting assembly memory operations. * Using TOC (Table Of Contents) as an amazing tool. HHVM, which is the main target of this talk, is a PHP interpreter built by Facebook, which implements the JIT (Just-In-Time) compilation technique to dynamically translate part of itself into assembly code, making its execution faster.
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production notes
2018-01-24/16_10_19.ts
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