New ARMv7 CFLAGS/CXXFLAGS on Gentoo

Hello everyone,

From this month(October) the default ARMv7 CFLAGS/CXXFLAGS used to built ARMv7 stages are going to change from:
CFLAGS="-Os -march=armv7-a -mfpu=vfp -mfloat-abi=softfp -pipe"
to
CFLAGS="-Os -march=armv7-a -mfpu=vfpv3-d16 -mfloat-abi=softfp -pipe"

The vfpv3-d16 option was included in gcc-4.4, and since thats what its stable, we’ll change the CFLAGS. This doesn’t affect current installations, but users are recommended to change their CFLAGS and rebuild the system.

Of course like always you’re free to use any other CFLAGS that suit better your system. You can use vfpv3 or neon if your system has those options. Those CFLAGS i mention is just for the armv7a stages we build, which target the “worst” possible armv7 processor.

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One Response to “New ARMv7 CFLAGS/CXXFLAGS on Gentoo”

  1. New ARM CFLAGS/CXXFLAGS on Gentoo « Armin76's Blog Says:

    […] Armin76's Blog Gentoo « New ARMv7 CFLAGS/CXXFLAGS on Gentoo […]

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