Commit Graph

5 Commits

Author SHA1 Message Date
David 'Digit' Turner
002d5366b6 ndk: <unistd.h>: minor cleanup
- Cleanup declaration of lseek64() to use off64_t instead of loff_t
- Cleanup declaration of prctl() to use variable number of arguments

The cleanups are performed to better match upstream.

Change-Id: I3c9420e328c3772bbb57dc9108dc879aa698a981
2012-04-02 17:54:27 +08:00
David 'Digit' Turner
3da072d28f ndk: <sys/cdefs.h> minor update
This patch fixes some formatting issues in <sys/cdefs.h>:

- change '#if __STDC_VERSION__ > xxx' into '#if defined(__STDC_VERSION__) && __STDC_VERSION > xxx'
- add __LIBC_HIDDEN__ definition (not technically required, but makes comparing the headers with upstream easier)
2012-04-02 17:41:16 +08:00
David 'Digit' Turner
6c32dacf97 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.
2012-04-02 15:59:46 +08:00
David 'Digit' Turner
7c2ba504e9 ndk: remove undefined symbols from system headers
This change removes the declaration of functions that are not
implemented by our various versions of our C library.

The corresponding declarations are moved inside #if 0 .. #endif
blocks (so it becomes easy to remember that they are missing)

Also refresh the headers a little (i.e. adding a few missing decl
and macros, remove C++ comments, etc)

See http://code.google.com/p/android/issues/detail?id=7807

Change-Id: I4ae1b1f3a181419eee2004c41b54768cc15e896f
NOTE: The missing decl are still there but encased in #if 0 .. #endif
      blocks (to make it easier to implement them later). There are
      a few exceptions in order to build STLport and libstdc++-v3
      properly.
2010-10-08 17:07:39 +02:00
David 'Digit' Turner
7012117d4a Unify NDK platform headers.
This commit removes duplication of system headers per platform, i.e. remove
copies of common headers like <stdlib.h> from arch-arm/usr/include and arch-x86/usr/include
and move them to a common include directory. More specifically:

- common headers:        android-N/arch-A/usr/include --> android-N/include
- arch-specific headers: android-N/arch-A/usr-include --> android-N/arch-A/include
- arch-specific libs:    android-N/arch-A/usr/lib     --> android-N/arch-A/lib

Change-Id: Ifdba5038d108901931f3e3a7c14ebe6270d2d276

NOTE: This also contains careful separation of API-level-specific headers.
      For example, platforms/android-5/include/pthread.h contains new function
      declarations that are not available when using platforms/android-3/include/pthread.h

NOTE: The NDK's build-platforms.sh script has been updated to understand the new
      layout. This change in develeopment/ndk does not change the layout of
      platform files under $NDK/platforms after build-platforms.sh is called.
2010-09-22 18:04:36 +02:00