Commit Graph

185 Commits

Author SHA1 Message Date
Elliott Hughes
17a8b0db63 Expose wait4 as wait4 rather than __wait4.
This helps strace(1) compile with one fewer hack.

Change-Id: I5296d0cfec5546709cda990abd705ad33d7c4626
2013-03-21 16:14:06 -07:00
Elliott Hughes
ec706c24ac Merge "Use the kernel's MAX_ERRNO in the syscall stubs." 2013-03-13 00:44:33 +00:00
Elliott Hughes
9aceab5015 Use the kernel's MAX_ERRNO in the syscall stubs.
Bug: http://code.google.com/p/android/issues/detail?id=53104
Change-Id: Iaabf7025b153e96dc5eca231a33a32d4cb7d8116
2013-03-12 17:43:58 -07:00
Christopher Ferris
04954a43b3 Break bionic implementations into arch versions.
Move arch specific code for arm, mips, x86 into separate
makefiles.
In addition, add different arm cpu versions of memcpy/memset.

Bug: 8005082

Merge from internal master (acdde8c1cf).

Change-Id: I04f3d0715104fab618e1abf7cf8f7eec9bec79df
2013-03-12 14:06:08 -07:00
Elliott Hughes
538f6fc202 Stop advertising rindex(3), which is both deprecated and unimplemented.
Change-Id: I3c775d9974e49c3f76a53e46e022659657b89034
2013-02-21 17:39:06 -08:00
Nick Kralevich
11ebbc8437 libc: remove bcmp prototype
AFAIK, bionic only ever provided an implementation of bcmp
for x86, and even then, the code was never actually compiled.
Remove the prototype.

bcmp() has been obsoleted and replaced by memcmp()

Change-Id: I549d02ab6a9241a9acbbbfade0d98a9a02c2eaee
2013-02-21 17:17:09 -08:00
Elliott Hughes
40eabe24e4 Fix the pthread_setname_np test.
Fix the pthread_setname_np test to take into account that emulator kernels are
so old that they don't support setting the name of other threads.

The CLONE_DETACHED thread is obsolete since 2.5 kernels.

Rename kernel_id to tid.

Fix the signature of __pthread_clone.

Clean up the clone and pthread_setname_np implementations slightly.

Change-Id: I16c2ff8845b67530544bbda9aa6618058603066d
2013-02-15 12:08:59 -08:00
Elliott Hughes
d2547040a1 ffs was not being built for x86.
Change-Id: I53e92273664a4d0a13536c2fa1aeb87e1f3cf4e8
2013-02-13 16:31:52 -08:00
Elliott Hughes
6719500dbd Add a bunch more missing ENDs to assembler routines.
This isn't everything; I've missed out those x86 files that are

Change-Id: Idb7bb1a68796d6c0b70ea2b5c3300e49da6c62d2
2013-02-13 15:12:32 -08:00
Elliott Hughes
b6032515a0 Fix __pthread_clone and __bionic_clone error handling on x86.
Bug: 3461078
Change-Id: I93c151e27411211dd32717f206745c62c08c21ee
2013-02-12 23:02:33 -08:00
Elliott Hughes
bdff26df27 Use ENTRY/END in custom x86 assembler too.
Change-Id: Ic2e482e5daff29c65d3b2ab0b2111c996bbc6226
2013-02-11 17:08:16 -08:00
Elliott Hughes
5e3fc43dde Fix __pthread_clone on ARM to set errno on failure.
MIPS and x86 appear to have been correct already.

(Also fix unit tests that ASSERT_EQ with errno so that the
arguments are in the retarded junit order.)

Bug: 3461078
Change-Id: I2418ea98927b56e15b4ba9cfec97f5e7094c6291
2013-02-11 16:39:10 -08:00
Elliott Hughes
646e058136 Fix x86 build, remove void* arithmetic.
Change-Id: Idc7f14af2e094ac33de315e808176237af063bb8
2013-02-07 12:16:10 -08:00
Elliott Hughes
2f41531ff9 Merge "Clean up the argc/argv/envp/auxv handling." 2013-02-07 19:48:17 +00:00
Elliott Hughes
42b2c6a5ee Clean up the argc/argv/envp/auxv handling.
There's now only one place where we deal with this stuff, it only needs to
be parsed once by the dynamic linker (rather than by each recipient), and it's
now easier for us to get hold of auxv data early on.

Change-Id: I6314224257c736547aac2e2a650e66f2ea53bef5
2013-02-07 11:44:21 -08:00
Elliott Hughes
7582a9c119 Switch x86 syscall stubs over to the ENTER/END style of the ARM stubs.
Also update the x86 asm.h to support this; we need it for libm assembler
anyway.

Also clean up the _FBSDID hack in <sys/cdefs.h>.

Change-Id: Iababd977b8110ec022bf7c93f4d62ece47630e7c
2013-02-06 17:08:15 -08:00
Elliott Hughes
a0ee07829a Upgrade libm.
This brings us up to date with FreeBSD HEAD, fixes various bugs, unifies
the set of functions we support on ARM, MIPS, and x86, fixes "long double",
adds ISO C99 support, and adds basic unit tests.

It turns out that our "long double" functions have always been broken
for non-normal numbers. This patch fixes that by not using the upstream
implementations and just forwarding to the regular "double" implementation
instead (since "long double" on Android is just "double" anyway, which is
what BSD doesn't support).

All the tests pass on ARM, MIPS, and x86, plus glibc on x86-64.

Bug: 3169850
Bug: 8012787
Bug: https://code.google.com/p/android/issues/detail?id=6697
Change-Id: If0c343030959c24bfc50d4d21c9530052c581837
2013-02-01 14:51:19 -08:00
Elliott Hughes
a6a3ac5924 Use the NetBSD <sys/exec_elf.h>.
Replace a kernel header file dependency with files from NetBSD.
They're more complete, and ELF is ELF, whether you're on Linux or a BSD.

Bug: 7973611
Change-Id: I83ee719e7efdf432ec2ddbe8be271d05b2f558d7
2013-01-29 15:02:50 -08:00
Rom Lemarchand
a4b2dc016f Add signalfd call to bionic
Add signalfd() call to bionic.

Adding the signalfd call was done in 3 steps:
- add signalfd4 system call (function name and syscall
  number) to libc/SYSCALLS.TXT
- generate all necessary headers by calling
  libc/tools/gensyscalls.py. This patch is adding
  the generated files since the build system
  does not call gensyscalls.py.
- create the signalfd wrapper in signalfd.cpp and add
  the function prototype to sys/signalfd.h

(cherry-pick of 0c11611c11, modified to
work with older versions of GCC still in use on some branches.)

Change-Id: I4c6c3f12199559af8be63f93a5336851b7e63355
2013-01-10 13:14:46 -08:00
Elliott Hughes
4fa35d8ae8 Fix <endian.h> and <sys/endian.h>.
Previously we'd been relying on getting the machine-specific <endian.h>
instead of the top-level <endian.h>, and <sys/endian.h> was basically broken.
Now, with this patch and the previous patch we should have <endian.h>
and <sys/endian.h> behaving the same. This is basically how NetBSD's endian.h
works, and was probably how ours was originally intended to work.

Bug: http://code.google.com/p/android/issues/detail?id=39824
Change-Id: I71de5a507e633de166013a658b5764df9e1aa09c
2012-12-11 16:17:33 -08:00
Elliott Hughes
97b70b2bda Merge "Replace .S version of x86 crtfiles with .c version" 2012-11-30 10:07:19 -08:00
Pavel Chupin
20c4a3a8ee Replace .S version of x86 crtfiles with .c version
This patch replaces .S versions of x86 crtfiles with .c which are much
easier to support. Some of the files are matching .c version of Arm
crtfiles. x86 files required some cleanup anyway and this cleanup actually
led to matching Arm files.

I didn't change anything to share the same crt*.c between x86 and Arm. I
prefer to keep them separate for a while in case any change is required
for one of the arch, but it's good thing to do in the following patches.

Change-Id: Ibcf033f8d15aa5b10c05c879fd4b79a64dfc70f3
Signed-off-by: Pavel Chupin <pavel.v.chupin@intel.com>
2012-11-30 17:41:25 +04:00
Elliott Hughes
3975cec694 Remove (near-)duplicate definitions of size_t and ssize_t.
The near duplicates upset fussier compilers that insist that
typedefs be exactly the same, but the fix isn't to make all
copies identical...

Change-Id: Icfdace41726f36ec33c9ae919dbb5a54d3529cc9
2012-11-29 17:25:23 -08:00
Elliott Hughes
b15c58bb0f Clean up _BYTE_ORDER definitions for better x86 portability.
We'd manually hacked _BYTE_ORDER into the arm and mips "_types.h" headers,
but not into the x86 one. Judging by upstream, _BYTE_ORDER should be in
the "endian.h" headers instead, so let's uniformly do that.

I've also ironed out some of the other differences between the different
architectures' header files too.

Bug: http://code.google.com/p/android/issues/detail?id=39824
Change-Id: I19d3af7ffd74e1c02b1b6886aec0f0d11f44ab8d
2012-11-27 14:18:04 -08:00
David 'Digit' Turner
c1b44ecc53 Revert "libc: Provide ucontext_t/mcontext_t/<sys/ucontext.h>"
This creates build issues in the internal Android tree.
Will investigate later.

Original patch: https://android-review.googlesource.com/#/c/38875/

Change-Id: I12c5995ebf172890051af42a5d3b31014c9c5117
2012-10-17 19:10:11 +02:00
David 'Digit' Turner
c124baaf29 libc: Provide ucontext_t/mcontext_t/<sys/ucontext.h>
This patch updates the C library headers to provide ucontext_t
definitions for three architectures.

+ Fix <signal.h> to always define 'struct sigcontext'.

The new declarations are announced with new macros defined in
<sys/cdefs.h> in order to make it easier to adapt client code
that already defines its own, incompatible, versions of the
structures seen here.

http://code.google.com/p/android/issues/detail?id=34784

Change-Id: Ie78c48690a4ce61c50593f6c39639be7fead3596
2012-10-17 15:59:23 +02:00
Elliott Hughes
1ad05db9ce Add mlockall and munlockall for Google TV.
Change-Id: I10e961d701e74aab07211ec7975f61167e387853
2012-09-06 11:24:45 -07:00
Irina Tirdea
1ad10a566e Add getsid system call to bionic
Add getsid() system call to bionic for
all architectures. This is needed for various tools
(e.g. perf).

Adding the getsid system call was done in 3 steps:
() add getsid system call (function name and syscall
number) to libc/SYSCALLS.TXT
() generate all necessary headers by calling
libc/tools/gensyscalls.py. This patch is adding
the generated files since the build system
does not call gensyscalls.py.
() add the system call signature to libc/include/unistd.h

Change-Id: Id69a257e13ec02e1a44085a6b217a3f19ab025b1
Signed-off-by: Irina Tirdea <irina.tirdea@intel.com>
2012-09-03 01:38:34 +03:00
Kevin Schoedel
c0b4d18d7d Use unambiguous mnemonics
Change-Id: I8da0af54cc3cbf69d9e485eb71bc44a6976b1adc
Author: Kevin P Schoedel <kevin.p.schoedel@intel.com>
Reviewed-by: Edwin Vane <edwin.vane@intel.com>
2012-08-21 15:28:23 -04:00
Jin Wei
22d366cc09 enable clone system call for x86
Add __bionic_clone function for x86, which will be
used for clone system call.

Change-Id: I889dc9bf4b7ebb4358476e17e6f3233e26491f4d
Signed-off-by: Jin Wei <wei.a.jin@intel.com>
Signed-off-by: Xiaokang Qin <xiaokang.qin@intel.com>
Signed-off-by: Beare, Bruce J <bruce.j.beare@intel.com>
Signed-off-by: Jack Ren <jack.ren@intel.com>
Author-tracking-BZ: 51414
2012-08-15 17:04:50 -07:00
Jeff Sharkey
e36c826f7a Add unshare() syscall.
(cherry-pick of 5467f25f82934d611c60f8bc57a05114f3c1bea0.)

Bug: 6925012
Change-Id: Ic5ea2fbd606311087de05d7a3594df2fa9b2fef9
2012-08-10 12:57:43 -07:00
Elliott Hughes
7c92b6ca40 Merge "Remove an awkward #include that is no longer upstream." 2012-08-06 07:57:59 -07:00
Jin Wei
c164f2a969 bionic: modify syscall to use 6 registers to pass parameter.
Kernel allows to use 6 registers(exclude eax) to pass parameter.
But in syscall's implementation, it only uses five registers.
It will lead to error when 6 parameters passed.

Change-Id: I92d663194e6334c3847f0c0c257ca3b9dee0edef
Author: Jin Wei <wei.a.jin@intel.com>
Signed-off-by: Xiaokang Qin <xiaokang.qin@intel.com>
Signed-off-by: Beare, Bruce J <bruce.j.beare@intel.com>
Signed-off-by: Jack Ren <jack.ren@intel.com>
Author-tracking-BZ: 30838
2012-08-03 13:54:29 -07:00
Elliott Hughes
bdcc14d721 Remove an awkward #include that is no longer upstream.
This was causing trouble in https://android-review.googlesource.com/#/c/37590/.

Change-Id: Ib7cb4fbaef6e9c1470c59f67d24bd24c7ce90bcc
2012-08-02 18:12:36 -07:00
Raghu Gandham
405b8029a6 MIPS support for libc.
Change-Id: I2864dea04b3faf2d919165dcaa600af5b16c41c8
Signed-off-by: Chris Dearman <chris@mips.com>
Signed-off-by: Raghu Gandham <raghu@mips.com>
2012-08-02 16:07:26 -07:00
Nick Kralevich
9d40326830 arm: rewrite crtbegin* as C files.
Rewrite
 crtbegin.S     -> crtbegin.c
 crtbegin_so.S  -> crtbegin_so.c

This change allows us to generate PIC code without relying
on text relocations.

As a consequence of this rewrite, also rewrite
  __dso_handle.S    -> __dso_handle.c
  __dso_handle_so.S -> __dso_handle_so.c
  atexit.S          -> atexit.c

In crtbegin.c _start, place the __PREINIT_ARRAY__, __INIT_ARRAY__,
__FINI_ARRAY__, and __CTOR_LIST__ variables onto the stack, instead of
passing a pointer to the text section of the binary.

This change appears sorta wonky, as I attempted to preserve,
as much as possible, the structure of the original assembly.
As a result, you have C files including other C files, and other
programming uglyness.

Result: This change reduces the number of files with text-relocations
from 315 to 19 on my Android build.

Before:
  $ scanelf -aR $OUT/system | grep TEXTREL | wc -l
  315

After:
  $ scanelf -aR $OUT/system | grep TEXTREL | wc -l
  19

Change-Id: Ib9f98107c0eeabcb606e1ddc7ed7fc4eba01c9c4
2012-06-01 14:41:27 -07:00
Nick Kralevich
83a73d1afe crtbegin: eliminate duplicate code
crtbegin_dynamic and crtbegin_static are essentially identical,
minus a few trivial differences (comments and whitespace).

Eliminate duplicates.

Change-Id: Ic9fae6bc9695004974493b53bfc07cd3bb904480
2012-05-30 11:45:12 -07:00
Elliott Hughes
f2f7bf76df am 4f05d1c7: Merge "bionic/x86: Optimization for memcpy"
* commit '4f05d1c758ba141c617f25251a661ecb66627e9e':
  bionic/x86: Optimization for memcpy
2012-05-10 21:31:48 -07:00
Jack Ren
c47703a521 bionic/x86: Optimization for memcpy
Signed-off-by: Liubov Dmitrieva <liubov.dmitrieva@intel.com>
Signed-off-by: H.J. Lu <hongjiu.lu@intel.com>
Signed-off-by: Wei A Jin <wei.a.jin@intel.com>
Signed-off-by: Jack Ren <jack.ren@intel.com>
Signed-off-by: Bruce Beare <bruce.j.beare@intel.com>

Conflicts:

	libc/arch-x86/string/ssse3-memcpy5.S

Change-Id: I41e70d1d19d5457e65c89b64da452fbdaf3a00a7
2012-05-08 12:18:25 -07:00
Nick Kralevich
5982e33aca Cherry-pick "generate PIC code".
Change-Id: I7d5f2e5663df263493f65e364c959e663fc4d13a
2012-05-08 11:53:28 -07:00
Elliott Hughes
f848321c4f resolved conflicts for merge of ef987656 to master
Change-Id: I3854de8f4cddaf344444efa6f9da027642a237d9
2012-04-16 14:26:43 -07:00
Elliott Hughes
8ecb4770a0 resolved conflicts for merge of 6b8fd054 to master
Change-Id: Ifc5a10d9c2f7764ad80d64cc552aad81d5fbf5eb
2012-04-16 14:16:42 -07:00
Elliott Hughes
4994deaef5 Merge "Bionic: Fix wrong prototype of system call clock_nanosleep" 2012-04-16 09:09:05 -07:00
Jack Ren
d515ce465b Bionic: Fix wrong prototype of system call clock_nanosleep
In bionic/libc/SYSCALLS.TXT, the prototype of system call
clock_nanosleep is incorrect.

According to man page:
int clock_nanosleep(clockid_t clock_id, int flags,
                    const struct timespec *request,
                    struct timespec *remain);

Change-Id: Ic44c6db3d632293aa17998035554eacd664c2d57
Signed-off-by: Jin Wei <wei.a.jin@intel.com>
Signed-off-by: Jack Ren <jack.ren@intel.com>
Signed-off-by: Bruce Beare <bruce.j.beare@intel.com>
2012-04-16 23:53:05 +08:00
Jack Ren
41070dd15f bionic: Fix wrong prototype of system call getresuid/getresgid
In bionic/libc/SYSCALLS.TXT, the prototypes of system call
getresuid/getresgid are incorrect.

According to man page, they should be:
    int getresuid(uid_t *ruid, uid_t *euid, uid_t *suid);
    int getresgid(gid_t *rgid, gid_t *egid, gid_t *sgid);

Change-Id: I676098868bb05a9e1fe45419b234cf397626fdad
Signed-off-by: Jin Wei <wei.a.jin@intel.com>
Signed-off-by: Jack Ren <jack.ren@intel.com>
Signed-off-by: Bruce Beare <bruce.j.beare@intel.com>
2012-04-16 23:45:36 +08:00
Kenny Root
f0ec06ba60 Add faccessat to syscall list
Change-Id: I427a18811089cb280769ac8da3ed8adc00a65a10
2012-04-13 15:45:42 -07:00
Elliott Hughes
4e362f230b am cd834618: am 63b14755: Merge "libc/x86: ensure the stack 16-byte aligned when tasks created"
* commit 'cd834618c4752b61d54ff4005a8baa8219b822e4':
  libc/x86: ensure the stack 16-byte aligned when tasks created
2012-03-30 22:16:02 -07:00
Elliott Hughes
63b1475551 Merge "libc/x86: ensure the stack 16-byte aligned when tasks created" 2012-03-30 13:42:42 -07:00
Jack Ren
cb08204053 libc/x86: ensure the stack 16-byte aligned when tasks created
Currently Renderscript sample code RsBalls crashed on x86 when SSE2
enabled. The root cause is that the stack was not 16-byte aligned
from the beginning when the processes/threads were created, so the
RsBalls crashed when SSE2 instructions tried to access the variables
on the stack.

- For the thread created by fork():
Its stack alignment is determined by crtbegin_{dynamic, static}.S

- For the thread created by pthread_create():
Its stack alignment is determined by clone.S. __thread_entry( ) is
a standard C function. In order to have its stack be aligned with
16 byte properly, __thread_entry() needs the stack with following
layout when it is called:
layout #1 (correct)
--------------
|            |
-------------- <--ESP (ECX - 20)
| ret EIP    |
-------------- <--ECX - 16
| arg0       |
-------------- <--ECX - 12
| arg1       |
-------------- <--ECX - 8
| arg2       |
-------------- <--ECX - 4
| unused     |
-------------- <--ECX (16-byte boundary)

But it has following layout for now:
layout #2: (incorrect)
--------------
|            |
-------------- <--ESP (ECX - 16)
| unused     |
-------------- <--ECX - 12
| arg0       |
-------------- <--ECX - 8
| arg1       |
-------------- <--ECX - 4
| arg2       |
-------------- <--ECX (16-byte boundary)

Fixed in this patch.

Change-Id: Ibe01f64db14be14033c505d854c73033556ddaa8
Signed-off-by: Michael Liao <michael.liao@intel.com>
Signed-off-by: H.J. Lu <hongjiu.lu@intel.com>
Signed-off-by: Jack Ren <jack.ren@intel.com>
Signed-off-by: Bruce Beare <bruce.j.beare@intel.com>
2012-03-23 20:04:04 +08:00
Ben Cheng
1a823691a2 Update kernel headers and add syscall "perf_event_open"
Change-Id: I43f12b727881df002a8524f2738586c043833bae
2012-03-13 12:28:40 -07:00
Jean-Baptiste Queru
7dbbfac0fc am 5d8fd2a0: am a71aefc6: am d041bf20: Merge "bionic/x86: fix one potential deadlock in __set_tls()"
* commit '5d8fd2a0bc059cd07405a372c98617829f8ac378':
  bionic/x86: fix one potential deadlock in __set_tls()
2012-02-23 12:34:02 -08:00
Jean-Baptiste Queru
a71aefc66f am d041bf20: Merge "bionic/x86: fix one potential deadlock in __set_tls()"
* commit 'd041bf2095f5f133c87f7ba632a8dfb39537a437':
  bionic/x86: fix one potential deadlock in __set_tls()
2012-02-23 12:29:10 -08:00
Jin Wei
c5393b23f6 bionic/x86: fix one potential deadlock in __set_tls()
Fix bug:
Currently the mutex lock _tls_desc_lock is not released
when __set_thread_area() fails. That will leads to the deadlock
when __set_tls( ) is called later on.

Change-Id: Iea3267cb0659971cba7766cbc3346f6924274f86
Signed-off-by: Jin Wei <wei.a.jin@intel.com>
Signed-off-by: Jack Ren <jack.ren@intel.com>
Signed-off-by: Bruce Beare <bruce.j.beare@intel.com>
2012-02-23 17:37:58 +08:00
Jean-Baptiste Queru
d6b58b03b8 am 09049311: am cfff36df: am a60ff6c5: Merge "libc: Define new symbol visibility macros"
* commit '09049311a229c427f73e3e0ac873bf344b45aaf2':
  libc: Define new symbol visibility macros
2012-02-13 14:42:48 -08:00
Jean-Baptiste Queru
cfff36df2b am a60ff6c5: Merge "libc: Define new symbol visibility macros"
* commit 'a60ff6c5b2ca76181b387d8c10aee22a2cbcf840':
  libc: Define new symbol visibility macros
2012-02-13 14:25:53 -08:00
David 'Digit' Turner
5fbf2e0992 libc: Define new symbol visibility macros
This patch defines a few new macros that can be used to control the
visibility of symbols exported by the C library:

- ENTRY_PRIVATE() can be used in assembly sources to indicate
  that an assembler function should have "hidden" visibility, i.e.
  will never be exported by the C library's shared library.

  This is the equivalent of using __LIBC_HIDDEN__ for a C function,
  but ENTRY_PRIVATE() works like ENTRY(), and must be used with
  END() to tag the end of the function.

- __LIBC_ABI_PUBLIC__ can be used to tag a C functions as being
  part of the C library's public ABI. This is important for a
  few functions that must be exposed by the NDK to maintain
  binary compatibility.

  Once a symbol has been tagged with this macro, it shall
  *never* be removed from the library, even if it becomes
  directly unused due to implementation changes
  (e.g. __is_threaded).

- __LIBC_ABI_PRIVATE__ can be used for C functions that should
  always be exported by the C library because they are used by
  other libraries in the platform, but should not be exposed
  by the NDK. It is possible to remove such symbols from the
  implementation if all callers are also modified.

+ Add missing END() assembly macro for x86

Change-Id: Ia96236ea0dbec41d57bea634b39d246b30e5e234
2012-01-31 22:19:09 +01:00
Jean-Baptiste Queru
73fa5fdaf9 Merge 2f80f07d
Change-Id: Iff51b8530dbee01499ba4af0ecd6ab837c8c94fb
2012-01-20 16:47:01 -08:00
Jean-Baptiste Queru
2f80f07d81 am 23f56bbb: Merge "Add extended attribute (xattr) system call wrappers to bionic."
* commit '23f56bbb6ae053996dd821f29379aea0c7166055':
  Add extended attribute (xattr) system call wrappers to bionic.
2012-01-20 11:54:47 -08:00
Stephen Smalley
5eb686d105 Add extended attribute (xattr) system call wrappers to bionic.
The xattr system calls are required for the SE Android userspace in
order to get and set file security contexts.  In particular, libselinux
requires these calls.

Change-Id: I78f5eb3d8f3384aed0a5e7c6a6f001781d982017
2012-01-18 08:02:23 -05:00
Nick Kralevich
023e5409df am 06f51ba1: am f44de270: add personality() system call.
* commit '06f51ba1af2fafeec7fdfcba5d635bd001a31b3e':
  add personality() system call.
2012-01-17 13:09:53 -08:00
Nick Kralevich
06f51ba1af am f44de270: add personality() system call.
* commit 'f44de270bba32c9b1b5eff8a34be07b10ddff238':
  add personality() system call.
2012-01-17 11:45:25 -08:00
Nick Kralevich
f44de270bb add personality() system call.
Change-Id: Ie899def8ea1d705930ed83adae1343c1353e7c57
2012-01-13 15:50:40 -08:00
Bruce Beare
6519c8124e am e30e9093: sreadahead: adding readahead system call into bionic libc
* commit 'e30e909363c5c706f394050d9cd00ce222caadbf':
  sreadahead: adding readahead system call into bionic libc
2012-01-03 18:37:28 -08:00
Bruce Beare
e30e909363 sreadahead: adding readahead system call into bionic libc
Add bionic libc to support readahead system call.
This is needed to enable sreadahead to work.

Change-Id: I3856e1a3833db82e6cf42fd34af7631bd40cc723
Author: Winson Yung <winson.w.yung@intel.com>
Signed-off-by: Bruce Beare <bruce.j.beare@intel.com>
2012-01-03 15:18:04 -08:00
Jack Ren
bec5dec947 am 0c3d21e6: am e480fc83: bionic: fix pthread_{create, exit}/signal race condition
* commit '0c3d21e63c6e75ae73aaf2b8d64af0bd8caa6beb':
  bionic: fix pthread_{create, exit}/signal race condition
2011-11-30 10:50:59 -08:00
Jack Ren
338a06f4bc am 621df526: am 31e72bc3: bionic: fix __get_tls( ) crash issue
* commit '621df52644cc19001688c0964ad425c5ed6c8990':
  bionic: fix __get_tls( ) crash issue
2011-11-30 10:50:58 -08:00
Jack Ren
e480fc83b2 bionic: fix pthread_{create, exit}/signal race condition
(1) in pthread_create:
    If the one signal is received before esp is subtracted by 16 and
    __thread_entry( ) is called, the stack will be cleared by kernel
    when it tries to contruct the signal stack frame. That will cause
    that __thread_entry will get a wrong tls pointer from the stack
    which leads to the segment fault when trying to access tls content.

(2) in pthread_exit
    After pthread_exit called system call unmap(), its stack will be
    freed.  If one signal is received at that time, there is no stack
    available for it.

Fixed by subtracting the child's esp by 16 before the clone system
call and by blocking signal handling before pthread_exit is started.

Author: Jack Ren <jack.ren@intel.com>
Signed-off-by: Bruce Beare <bruce.j.beare@intel.com>
2011-11-29 17:09:51 -08:00
Jack Ren
31e72bc328 bionic: fix __get_tls( ) crash issue
When running the stress test of pthread create/destroy, a crash may
oocur in __get_tls(). That is caused by the race condition with __set_tls( ):

Author: Jack Ren <jack.ren@intel.com>
Signed-off-by: Bruce Beare <bruce.j.beare@intel.com>
2011-11-29 17:09:15 -08:00
David 'Digit' Turner
de44d0b2bd Merge "libc: provide atomic operations will full barriers for NDK apps." 2011-11-22 02:10:06 -08:00
Jeff Brown
10c8ce59a4 Add tgkill syscall.
Use tgkill instead of tkill to implement pthread_kill.
This is safer in the event that the thread has already terminated
and its id has been reused by a different process.

Change-Id: Ied715e11d7eadeceead79f33db5e2b5722954ac9
2011-11-18 16:40:48 -08:00
David 'Digit' Turner
0fec6b9d88 libc: provide atomic operations will full barriers for NDK apps.
__atomic_cmpxchg and other related atomic operations did not
provide memory barriers, which can be a problem for non-platform
code that links against them when it runs on multi-core devices.

This patch does two things to fix this:

- It modifies the existing implementation of the functions
  that are exported by the C library to always provide
  full memory barriers. We need to keep them exported by
  the C library to prevent breaking existing application
  machine code.

- It also modifies <sys/atomics.h> to only export
  always-inlined versions of the functions, to ensure that
  any application code compiled against the new header will
  not rely on the platform version of the functions.

  This ensure that said machine code will run properly on
  all multi-core devices.

This is based on the GCC built-in sync primitives.

The end result should be only slightly slower than the
previous implementation.

Note that the platform code does not use these functions
at all. A previous patch completely removed their usage in
the pthread and libstdc++ code.

+ rename arch-arm/bionic/atomics_arm.S to futex_arm.S
+ rename arch-x86/bionic/atomics_x86.S to futex_x86.S
+ remove arch-x86/include/sys/atomics.h which already
  provided inlined functions to the x86 platform.

Change-Id: I752a594475090cf37fa926bb38209c2175dda539
2011-11-16 17:37:15 +01:00
Nick Kralevich
0aa8289c6f generate PIC code.
Change-Id: I6740c30e2782ae203aa7ddaeaf3b233e90de9c4d
2011-11-11 17:28:59 -08:00
David Turner
3dc94305e4 am 17a40ffb: am c57fd963: Merge "NDK: x86 header file has incorrect definition for ptrdiff_t"
* commit '17a40ffbf0e12ee44a024a9bb37434388478b478':
  NDK: x86 header file has incorrect definition for ptrdiff_t
2011-08-05 09:42:57 -07:00
David Turner
c57fd96381 Merge "NDK: x86 header file has incorrect definition for ptrdiff_t" 2011-08-05 09:23:29 -07:00
Mark D Horn
c3c0e88bed NDK: x86 header file has incorrect definition for ptrdiff_t
See Bug http://code.google.com/p/android/issues/detail?id=19042

Change-Id: I8e975930e7f8c3c437ecdffbc6f6bc5028937829
Signed-off-by: Mark D Horn <mark.d.horn@intel.com>
2011-08-05 08:34:17 -07:00
David Turner
951e838191 am 3906a9c1: am f5aa1382: Merge "x86 libc: Fix the range to check the error"
* commit '3906a9c16b971c2689e1b8ae5455feec8cf7353c':
  x86 libc: Fix the range to check the error
2011-08-05 08:25:35 -07:00
David Turner
f5aa1382ec Merge "x86 libc: Fix the range to check the error" 2011-08-05 08:08:57 -07:00
David 'Digit' Turner
a64990f3f2 am f03fb955: am 023c4988: Merge "libc: x86: Fixed size_t definition."
* commit 'f03fb955a92bdcc341aaa1b4a6eb2d81bc844e06':
  libc: x86: Fixed size_t definition.
2011-08-04 11:13:10 -07:00
David 'Digit' Turner
d265046dcc libc: x86: Fixed size_t definition.
This patch changes the declaration of size_t on x86 targets
to test for the __ANDROID__ macro, instead of ANDROID

__ANDROID__ should be a builting toolchain macro, while ANDROID
is usually added manually during the build.

Testing against __ANDROID__ allows us to use the header when
using the NDK's standalone x86 toolchain.

This is related to http://code.google.com/p/android/issues/detail?id=19011
The bug was already fixed in the NDK platform headers, this simply updates
the C library one accordingly.

Change-Id: Ie038c4c8b37b7d24e2e4ae4d7a63371b69c9a51e
2011-08-04 14:07:00 +02:00
David Turner
b489666086 am 1c0a0381: Merge "Enable functional DSO object destruction"
* commit '1c0a0381dfb3648ffadef9537ec9383d63d62473':
  Enable functional DSO object destruction
2011-06-23 05:28:13 -07:00
Bruce Beare
3964084282 Enable functional DSO object destruction
Unfortunately, legacy .so files for ARM don't have a correct crtbegin file.
Consequently, we have to grandfather the old __dso_handle behaviour.
Add some ifdefs for ARM to allow it to use the old code until we can work
out a transition.

Change-Id: I6a28f368267d792c94e1d985d8344023bc632f6f
Author: H.J. Lu <hongjiu.lu@intel.com>
Signed-off-by: Bruce Beare <bruce.j.beare@intel.com>
2011-06-20 14:44:44 -07:00
Jun Nakajima
5288fee835 x86 libc: Fix the range to check the error
The spec says "A value in the range between -4095 to -1 indicates an error" (not -129).
This was pointed out in the comment in 22039.

Change-Id: I11b7c45015a9e4ccf09aed5364a889437eab6ab8
Signed-off-by: Jun Nakajima <jun.nakajima@intel.com>
2011-06-17 14:37:50 -07:00
David Turner
204d1f65db am b2c7e0c1: Merge "x86: Enable -fstack-protector"
* commit 'b2c7e0c18b7ab04cfe306277c79165de0612a2d1':
  x86: Enable -fstack-protector
2011-06-06 11:32:49 -07:00
David Turner
a57270b6ab am 56baceca: Merge "Update X86 Bionic CRT files for unwind/exceptions"
* commit '56baceca024f1cc2a5e8ef8c5e7ba7ea463d1ae2':
  Update X86 Bionic CRT files for unwind/exceptions
2011-06-06 11:32:38 -07:00
Bruce Beare
e0b4844a20 x86: Enable -fstack-protector
Change-Id: Ib69514c3afcb4c1f5e5f3f8cd91acfd145a0866c
Signed-off-by: Bruce Beare <bruce.j.beare@intel.com>
2011-05-24 13:32:14 -07:00
Mark D Horn
dc3bc87b43 Update X86 Bionic CRT files for unwind/exceptions
Several updates to Bionic crt*.o files to implement Linux/x86
stack unwind/exception handling.
Mark __dso_handle as hidden.
Note: Requires complete rebuild due to CRT changes. Google will
need to regenerate and check-in all the prebuilt x86 CRT object
files and libraries which link to them.

Change-Id: I191ce1afb0dee7bbc28dcd9694e5919226dbd070
Signed-off-by: Bruce J Beare <bruce.j.beare@intel.com>
Signed-off-by: Mark D Horn <mark.d.horn@intel.com>
Author: Lu, Hongjiu <hongjiu.lu@intel.com>
2011-05-24 13:31:50 -07:00
David Turner
2b434862fd am 2b10d912: am fcee105b: Merge "x86 libc: fix the wrong return value of syscall"
* commit '2b10d912cc5a566818ff68f9af192033d8f8b2a9':
  x86 libc: fix the wrong return value of syscall
2011-04-11 14:46:44 -07:00
Kan-Ru Chen
8488efaa09 x86 libc: fix the wrong return value of syscall
According to Intel ABI spec, there is no need to save %eax, %ecx, %edx
on the stack. Worse, popping %eax will wipe out the return value.

Change-Id: Ida536c3b98174b8deef88f8f3b9352eaaeb7c0c0
2011-03-29 13:16:42 +08:00
Ken Sumrall
b130f00493 am ae2d5ba3: Add support for the utimensat(2) syscall to bionic.
* commit 'ae2d5ba31412c4f382ef405000baa866f35dd736':
  Add support for the utimensat(2) syscall to bionic.
2011-03-24 22:31:40 -07:00
Ken Sumrall
ae2d5ba314 Add support for the utimensat(2) syscall to bionic.
The kernel has supported this syscall for quite some time now,
but bionic did not.  Now that there is a need for it, let's
add it to bionic.

Change-Id: Ifcef3e46f1438d79435b600c4e6063857ab16903
2011-03-24 18:18:48 -07:00
Bruce Beare
48e1feaa9d Updated gcc 4.4.3 IA toolchain doesn't require the .ctors list
Change-Id: Ia840a19a45257128eccdcf25d105f500f2d90741
Signed-off-by: H.J. Lu <hjl.tools@gmail.com>
Signed-off-by: Bruce Beare <bruce.j.beare@intel.com>
2011-02-16 17:50:23 -08:00
Bruce Beare
f4680b57ed Remove an extra register move.
Change-Id: I63c217b73203b44b1a2e74950b58f2ec12989cab
Author: H.J. Lu <hjl.tools@gmail.com>
Signed-off-by: Bruce Beare <bruce.j.beare@intel.com>
2011-02-03 12:21:04 -08:00
Bruce Beare
0f2001b147 Replace __atomic_XXX with GCC __sync_XXX intrinsics.
Change-Id: I14f275392fcd70cc15e307470e0a099777c7c09e
Author: H.J. Lu <hjl.tools@gmail.com>
Signed-off-by: Bruce Beare <bruce.j.beare@intel.com>
2011-02-03 12:21:03 -08:00
Bruce Beare
3c56ce497d use consistent guards for off_t and size_t defines for IA
Change-Id: Ie92b7597883c99e7f4101f4cf5e0ad267b4ee706
2011-01-07 11:42:54 -08:00
Bruce Beare
ce6c1d6184 Simplify variable typing for IA builds
Change-Id: I065e5176b3a15bd74ba832f8827b4a4e4837b0f7
2011-01-07 11:40:42 -08:00
Jean-Baptiste Queru
53c3e86fae am 3d302be4: Merge "android-x86: add sigsetjmp.S"
* commit '3d302be485bc2f62a889fac85e386c9b8775eb59':
  android-x86: add sigsetjmp.S
2010-12-29 11:29:33 -08:00
Chih-Wei Huang
18635d9c17 android-x86: add sigsetjmp.S
It adds two functions sigsetjmp and siglongjmp
that fix compiling errors in bluetooth and mksh.

Copy directly from sigsetjmp.S of OpenBSD.

Change-Id: I4696f82ee6f85d1c93cbdd3c9e40f4917d50f3a6
2010-12-26 09:22:13 -08:00
David 'Digit' Turner
95d751feac libc: Add ftruncate64 and improve 64-bit parameter syscall handling.
This patch improves the handling of 64-bit parameters in syscalls on ARM.
The ARM EABI mandates that 64-bit quantities be passed in even/odd register
pairs, which requires special treatment.

This allows us to simplify our implementations of pread() and pwrite()
and remove the C stubs for pread64() and pwrite64().

Also add ftruncate64() to <unistd.h>

Change-Id: I407e2fd223ba0093dd2d0b04c6152fadfc9ce3ef

Bug 3107933
2010-12-16 17:04:41 +01:00
David 'Digit' Turner
72e6fd4242 <sched.h>: Add sched_getcpu() and cpu_set_t
This adds the cpu_set_t type definition and related functions
and macros used to handle CPU thread affinity.

  sched_getcpu()
  sched_setaffinity()
  sched_getaffinity()

Change-Id: If382ecafde8926341a88478062b275553645065b
2010-12-06 13:42:54 +01:00
Jean-Baptiste Queru
82775ae0ac resolved conflicts for merge of 347db52a to gingerbread-plus-aosp
Change-Id: I706a5158e781cbbc00344a72badca1543bcbca15
2010-10-15 12:52:21 -07:00