Commit Graph

11 Commits

Author SHA1 Message Date
Dan Willemsen d1baa0f001 Remove -Wa,noexecstack from unsupported arm clang flags
This was marked as unsupported only on arm[64], even though it works.
For soong, we want to keep a single list of unsupported clang flags
for all architectures.

Change-Id: I9c4ae0f255c549d2346ba7abae57e22c86ddcc61
2016-01-12 15:54:57 -08:00
Colin Cross c180dd0bfc Merge "Revert "disable Krait for Mac builds to avoid assembler issues"" 2015-09-25 01:07:52 +00:00
Colin Cross 737cc70b50 Revert "disable Krait for Mac builds to avoid assembler issues"
This doesn't seem to be a problem any more, and mac builds
that differ from linux builds is causing other problems.

This reverts commit 7c40fb95dc.

Bug: 24339250
Change-Id: I8a0da11df42d58ba9c3ded4571f1db870f400a21
2015-09-25 00:30:34 +00:00
Pirama Arumuga Nainar 2d5a50e686 Add -mfpu=neon-vfpv4 if cpu is krait
Upstream clang r239152 (http://reviews.llvm.org/D10239) caused a pretty
significant change in behavior.  Passing an FPU feature via -mfpu
disables any feature not supported by those flags (in addition to the
old behavior of enabling features supported by the flags).  For e.g.,
-mfpu=neon used to just pass +neon, +vfp3 as target features to the
backend.  Now, -mfpu=neon also passes -vfp4, -fp16, -fp-armv8.

The backend has always disabled implied feature bits if a feature is
disabled.  Upon seeing the target feature -vfp4, it will disable any
processor/feature that implies vfp4, including the bit that the
processor is a Krait.  Since Krait has both Neon and vfp4, it is safe to
pass '-mfpu=neon-vfpv4'.

Change-Id: Ibbb992e80b8cbc8dc36d5df556885d0912baea22
2015-07-09 12:55:00 -07:00
Bernhard Rosenkränzer a24a9a8e62 Allow -mcpu=cortex-a15 for clang
Clang 3.6 (including the snapshot present in AOSP) added support for
-mcpu=cortex-a15 -- there's no need to fall back to generic armv7-a
anymore.

Change-Id: I8a582261ac35e32f8f1def1d244cf83f2096520d
Signed-off-by: Bernhard Rosenkränzer <Bernhard.Rosenkranzer@linaro.org>
2015-03-25 16:59:46 +01:00
Tim Murray 7c40fb95dc disable Krait for Mac builds to avoid assembler issues
Change-Id: Ie98f4dbc2cef92798ec08b43b93e7e0339a92a92
2014-12-09 14:28:57 -08:00
Ian Rogers e270873407 Specify -mcpu=krait for clang.
Change-Id: I64682cddf57246341c1727ca16c56f7ce0c6fd0a
2014-10-28 15:50:02 -07:00
Chih-Hung Hsieh 57c8a15edd Set default to Clang integrated assembler.
BUG: 17820427
Change-Id: I10a6ddd94aad083665164d7939990e148b3b6efb
2014-10-22 09:21:53 -07:00
Chih-Hung Hsieh 0278174764 Add GCC only flags to clang .mk files.
BUG: 17258227
Change-Id: Iec9fdb21a9fa31e18a17704beb27bb493c9b7192
2014-08-25 16:49:53 -07:00
Tim Murray 43d5e1bbc4 Build changes necessary for LLVM 3.5 switch.
Change-Id: Icb6065daada7cb1d7425206830a4ef9e23454c03

Conflicts:
	core/clang/arm.mk
2014-04-24 13:14:32 -07:00
Ying Wang 1f9828387d Refactor llvm_config.mk and support the 2nd arch
1. Following the setup of gcc in build/core/combo/,
we added the [HOST|TARGET]_<arch>.mk clang config files,
and load only the configs needed by the current product.
2. Added support for the 2nd arch.

Change-Id: I2a383418a9688a050b39492f8e489d40eeeb5f2d
2014-02-07 09:11:22 -08:00