Commit Graph

3 Commits

Author SHA1 Message Date
Pavel Chupin
ac612d2495 Move _types.h to 32-bit arch dirs to avoid impact on 64-bits
This change moves _types.h from common area to all 32-bits archs.
Required for successful NDK build.

Change-Id: Ife676a285f4b77aef4c33e465a0dbc7cab1481a3
Signed-off-by: Pavel Chupin <pavel.v.chupin@intel.com>
2014-03-25 19:21:34 +04:00
David 'Digit' Turner
904f6923b8 ndk: Fix <sys/atomics.h> declarations.
The atomic operations exported by the platform's C library do not
provide full memory barriers. This can result in incorrect results
when NDK machine code linked against them runs on multi-core devices.

While the bug has been fixed in the platform, this NDK header change
ensures that any source code that includes <sys/atomics.h> will end
up using a correct implementation of these functions, based on the
corresponding GCC builtins.

These builtins always provide a full barrier and have reasonable
performance. Application developers who depend on <sys/atomics.h>
should recompile their unmodified sources against this version
of the NDK as soon as possible.

Change-Id: Ife165d09dceffdcd768b69c072d253cac898419c
2011-11-22 11:18:44 +01:00
David 'Digit' Turner
3e1498c4c4 ndk: x86: Sanitize platform headers and libraries.
This change sanitizes the x86-specific platform headers and libraries.
It does two things:

- Remove the stuff under android-3/arch-x86

- Update the content of android-9/arch-x86 from a recent AOSP
  full_x86-eng build (see caveats below).

Some files appear to move because they didn't change (e.g. kernel headers).

This change was generated by following these steps:

1/ Build full_x86-eng from the AOSP tree

2/ From $ANDROID_ROOT/ndk, run:

   build/tools/dev-system-import.sh --direct --arch=x86 9

3/ Under $ANDROID_ROOT/development/ndk, do:

   git rm -r android-3/arch-x86
   git add android-9/arch-x86
   git checkout -- android-9/include
   git ls-files -o | xargs rm
   git commit

IMPORTANT:
   The AOSP tip-of-tree used to generate these files
   includes post-Gingerbread changes !!

   The final version of the android-9/arch-x86 files will have to
   be generated from the gingerbread branch after we back-port all
   x86-support changes to it.

   These binaries are thus not final, but can be used to generate
   working experimental NDK packages, including prebuilt GNU libstdc++
   and STLport binaries that implement -fstack-protector correctly.

Change-Id: I260896185a098b9b356bd26f492692e4a4f66f8f
2011-05-27 06:14:16 +02:00