Commit Graph

1830 Commits

Author SHA1 Message Date
David 'Digit' Turner
11f3d5a431 libc: Copy private C library declarations to private/
This patch is the first in a series that aims at cleaning up the
public C library headers (which end up being distributed with the NDK).

<resolv.h> and <time.h> contain declarations that should not be public.
They are used by other parts of the platform, but NDK applications should
not use or rely on them.

So copy them to private <bionic_time.h> and <resolv_iface.h> headers
and use a guard macro to avoid conflicts when both headers are included
at the same time.

The idea is that we're going to fix the other platform modules to
include these private headers. After this is done, we will remove the
duplicate definitions from <resolv.h> and <time.h>

Change-Id: I121c11936951c98ca7165e811126ed8a4a3a394d
2012-01-13 13:26:50 +01:00
Robert Greenwalt
e4ade69654 am 82c4be54: am ecd0e95a: Adding a timeout to tcp dns lookup connects.
* commit '82c4be54da0825ebe74b524932c9db733419057a':
  Adding a timeout to tcp dns lookup connects.
2012-01-12 15:05:57 -08:00
Robert Greenwalt
a70e3eb15c am ecd0e95a: Adding a timeout to tcp dns lookup connects.
* commit 'ecd0e95a0276c1ba72c7331f5e4617815f015f22':
  Adding a timeout to tcp dns lookup connects.
2012-01-12 15:04:09 -08:00
Robert Greenwalt
82c4be54da am ecd0e95a: Adding a timeout to tcp dns lookup connects.
* commit 'ecd0e95a0276c1ba72c7331f5e4617815f015f22':
  Adding a timeout to tcp dns lookup connects.
2012-01-12 15:03:52 -08:00
Robert Greenwalt
ecd0e95a02 Adding a timeout to tcp dns lookup connects.
TCP isn't supported on some dns servers, which makes the old code
hang forever.

NOT adding a stopship to remove debugging stuff - it was too painful
(14s timeout on failed tcp dns lookups) so we decided not to bother people.

bug:5766949
Change-Id: I381c20c3e11b8e994438d4f7c58ef643cd36554e
2012-01-12 14:26:41 -08:00
David Turner
5977ee02f6 Merge "Execute .preinit_array before any shared object initialization functions." 2012-01-12 01:04:46 -08:00
Evgeniy Stepanov
e83c56dfbb Execute .preinit_array before any shared object initialization functions.
This change makes linker handling of .preinit_array compliant with the
System V ABI:

"These [pre-initialization] functions are executed after the dynamic linker has
built the process image and performed relocations but before any shared object
initialization functions."
http://www.sco.com/developers/gabi/latest/ch5.dynamic.html#init_fini

Change-Id: Iebfee22bb1ebe1d7c7e69cb4686e4ebae0dfc4bb
2012-01-10 13:30:41 +04:00
Mathias Agopian
68d03fdbd8 Merge "implement pthread mutex deadlock detection" 2012-01-05 14:05:30 -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
Ken Sumrall
334379dada Merge "Add the posix_memalign(3) function to bionic" 2011-12-20 15:06:52 -08:00
Bruce Beare
5936e36f6b am a37f3729: readdir: fix interface to kernel getdents64 function
* commit 'a37f3729730e4e7345977915d67adc3eea93dfe4':
  readdir: fix interface to kernel getdents64 function
2011-12-19 11:36:48 -08:00
Bruce Beare
a37f372973 readdir: fix interface to kernel getdents64 function
Issue:
  The kernel will pad the entry->d_reclen in a getdents64 call to a
  long-word boundary.  For very long records, this could exceed the
  size of a struct dirent. The mismatch in the size was causing error
  paranoid checking code in bionic to fail... thus causing an early
  "end" when reading the dirent structures from the kernel buffer.

Test:
 ls
 mkdir abcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstu
 ls

Change-Id: I75d1f8e45e1655fdd7bac4a08a481d086f28073a
Author: Bruce Beare <bruce.j.beare@intel.com>
2011-12-19 09:38:48 -08:00
Ken Sumrall
85aad90956 Add the posix_memalign(3) function to bionic
The posix_memalign(3) function is very similar to the traditional
memalign(3) function, but with better error reporting and a guarantee
that the memory it allocates can be freed.  In bionic, memalign(3)
allocated memory can be freed, so posix_memalign(3) is just a wrapper
around memalign(3).

Change-Id: I62ee908aa5ba6b887d8446a00d8298d080a6a299
2011-12-14 20:55:43 -08:00
David 'Digit' Turner
a5cb76bca0 libc: x86: Use SSE2 or SSSE3 optimized routines when possible.
This patch uses the new hardware feature macros for x86 to define
various compile-time macros used to make the C library use
SSE2 and/or SSSE3 optimized memory functions for target CPUs
that support these features.

Note that previously, we relied on the macros being defined by
build/core/combo/TARGET_linux-x86.mk, but this is no longer the
case.

Change-Id: Ieae5ff5284c0c839bc920953fb6b91d2f2633afc
2011-12-14 18:23:40 +01:00
The Android Open Source Project
f6aa779383 am c2d5944e: Reconcile with ics-mr1-release
* commit 'c2d5944e19863bb2d831b13893a3bb78e0d53783':
2011-12-13 19:11:25 -08:00
The Android Open Source Project
c2d5944e19 Reconcile with ics-mr1-release
Change-Id: I62bace5c4272d043a51d3f0f698556716838aa51
2011-12-13 19:10:03 -08:00
The Android Automerger
caf08f71b8 merge in ics-mr1-release history after reset to ics-mr1 2011-12-13 17:35:59 -08:00
Erik Gilling
ddaa771cd5 am 8d28b043: am 94963af2: update video/dsscomp.h
* commit '8d28b043e93d323684add3406ebae6b8fe6475d5':
  update video/dsscomp.h
2011-12-13 17:29:12 -08:00
Erik Gilling
24aae1b1d4 am 94963af2: update video/dsscomp.h
* commit '94963af28e445384e19775a838a29e6a71708179':
  update video/dsscomp.h
2011-12-13 16:03:09 -08:00
Erik Gilling
8d28b043e9 am 94963af2: update video/dsscomp.h
* commit '94963af28e445384e19775a838a29e6a71708179':
  update video/dsscomp.h
2011-12-13 16:02:50 -08:00
Erik Gilling
94963af28e update video/dsscomp.h
Change-Id: I9da47f7fb7f34f9c4baa860bb767cb8fd4f8020c
Signed-off-by: Erik Gilling <konkers@android.com>
2011-12-13 14:48:51 -08:00
Bruce Beare
e2bb45a7c0 am f3087c6e: am af96d4da: x86: libc may use the gcc flags from TARGET_linux-x86.mk
* commit 'f3087c6e86f54874538669d899d8a2ede59f7433':
  x86: libc may use the gcc flags from TARGET_linux-x86.mk
2011-12-12 15:39:04 -08:00
Bruce Beare
cb4d9c0e1d am 68ec71eb: am 7d03c9cb: pathconf: dead loop in bionic function __2_symlinks
* commit '68ec71ebd6df12596dc5688c907c76ea4b32c9b4':
  pathconf: dead loop in bionic function __2_symlinks
2011-12-12 15:30:11 -08:00
The Android Open Source Project
e2cb764778 am c14ea96f: Reconcile with ics-mr1-release
* commit 'c14ea96f2f4e36f7a3b3d9676df845afb09c2245':
2011-12-12 15:29:53 -08:00
Erik Gilling
61f90d1898 am ffe65783: am bba5c314: update video/dsscomp.h
* commit 'ffe65783b4afc3f687a54b582a4e236caa22ed30':
  update video/dsscomp.h
2011-12-12 12:34:57 -08:00
Bruce Beare
f3087c6e86 am af96d4da: x86: libc may use the gcc flags from TARGET_linux-x86.mk
* commit 'af96d4dadc3f3d8466dbbeaf3a816e6871715fbc':
  x86: libc may use the gcc flags from TARGET_linux-x86.mk
2011-12-09 16:19:30 -08:00
Mathias Agopian
7c0c379372 implement pthread mutex deadlock detection
this works by building a directed graph of acquired
pthread mutexes and making sure there are no loops in
that graph.

this feature is enabled with:

    setprop debug.libc.pthread 1

when a potential deadlock is detected, a large warning is
output to the log with appropriate back traces.

currently disabled at compile-time. set PTHREAD_DEBUG_ENABLED=1
to enable.

Change-Id: I916eed2319599e8aaf8f229d3f18a8ddbec3aa8a
2011-12-09 14:38:57 -08:00
The Android Open Source Project
b7590d784f am c448c082: Reconcile with ics-mr1-release
* commit 'c448c082cf834f95afcfa3296eba2c67780727cf':
2011-12-09 14:25:56 -08:00
Bruce Beare
af96d4dadc x86: libc may use the gcc flags from TARGET_linux-x86.mk
Change-Id: Iaf4d864d4b6fe388bd3c2d7c4d7d6e42aebb0d35
Signed-off-by: Bruce Beare <bruce.j.beare@intel.com>
2011-12-09 13:54:20 -08:00
Bruce Beare
68ec71ebd6 am 7d03c9cb: pathconf: dead loop in bionic function __2_symlinks
* commit '7d03c9cbcedb1dc7e3a8210ac0001120558ec6df':
  pathconf: dead loop in bionic function __2_symlinks
2011-12-09 10:19:37 -08:00
The Android Open Source Project
c14ea96f2f Reconcile with ics-mr1-release
Change-Id: I0a43c4d104894fdde4eff9970bc78ed0aeb88ec2
2011-12-09 07:10:40 -08:00
The Android Automerger
132b3adfcc merge in ics-mr1-release history after reset to ics-mr1 2011-12-08 17:34:07 -08:00
Erik Gilling
cb9e9ccb2b am bba5c314: update video/dsscomp.h
* commit 'bba5c314b2420483e2c0e3e441bf54bda6935bc1':
  update video/dsscomp.h
2011-12-08 14:57:32 -08:00
Erik Gilling
ffe65783b4 am bba5c314: update video/dsscomp.h
* commit 'bba5c314b2420483e2c0e3e441bf54bda6935bc1':
  update video/dsscomp.h
2011-12-08 14:57:00 -08:00
Erik Gilling
bba5c314b2 update video/dsscomp.h
Change-Id: Ic5f1c01add1f2adb5a09d05c94129f3dc9cc3f1f
Signed-off-by: Erik Gilling <konkers@android.com>
2011-12-08 14:42:04 -08:00
The Android Open Source Project
c448c082cf Reconcile with ics-mr1-release
Change-Id: Icc9d31cb9a4f379354808a4c7e913685dfa22e80
2011-12-08 10:17:32 -08:00
David 'Digit' Turner
022d303116 libc: optimize pthread mutex lock/unlock operations (1/2)
This patch provides several small optimizations to the
implementation of mutex locking and unlocking. Note that
a following patch will get rid of the global recursion
lock, and provide a few more aggressive changes, I
though it'd be simpler to split this change in two parts.

+ New behaviour: pthread_mutex_lock et al now detect
  recursive mutex overflows and will return EAGAIN in
  this case, as suggested by POSIX. Before, the counter
  would just wrap to 0.

- Remove un-necessary reloads of the mutex value from memory
  by storing it in a local variable (mvalue)

- Remove un-necessary reload of the mutex value by passing
  the 'shared' local variable to _normal_lock / _normal_unlock

- Remove un-necessary reload of the mutex value by using a
  new macro (MUTEX_VALUE_OWNER()) to compare the thread id
  for recursive/errorcheck mutexes

- Use a common inlined function to increment the counter
  of a recursive mutex. Also do not use the global
  recursion lock in this case to speed it up.

Change-Id: I106934ec3a8718f8f852ef547f3f0e9d9435c816
2011-12-07 22:09:48 +01:00
David 'Digit' Turner
6c6de44f04 libc: optimize pthread_once() implementation.
This patch changes the implementation of pthread_once()
to avoid the use of a single global recursive mutex. This
should also slightly speed up the non-common case where
we have to call the init function, or wait for another
thread to finish the call.

Change-Id: I8a93f4386c56fb89b5d0eb716689c2ce43bdcad9
2011-12-07 22:06:36 +01:00
Bruce Beare
7d03c9cbce pathconf: dead loop in bionic function __2_symlinks
Fix dead loops in file ./bionic/libc/unistd/pathconf.c

Change-Id: I7a1e6bcd9879c96bacfd376b88a1f899793295c8
Author: Jin Wei <wei.a.jin@intel.com>
Signed-off-by: Bruce Beare <bruce.j.beare@intel.com>
2011-12-07 09:47:20 -08:00
Rabin Vincent
6e9d51701e am a73de44b: am 177ba8cb: Prevent deadlock when using fork
* commit 'a73de44b7c0a50908ea8afe16134316cfc6cfbbe':
  Prevent deadlock when using fork
2011-12-06 16:04:56 -08:00
Rabin Vincent
a73de44b7c am 177ba8cb: Prevent deadlock when using fork
* commit '177ba8cb42ed6d232e7c8bcad5e6ee21fc51a0e8':
  Prevent deadlock when using fork
2011-12-06 13:59:56 -08:00
Rabin Vincent
177ba8cb42 Prevent deadlock when using fork
When forking of a new process in bionic, it is critical that it
does not allocate any memory according to the comment in
java_lang_ProcessManager.c:
"Note: We cannot malloc() or free() after this point!
A no-longer-running thread may be holding on to the heap lock, and
an attempt to malloc() or free() would result in deadlock."
However, as fork is using standard lib calls when tracing it a bit,
they might allocate memory, and thus causing the deadlock.
This is a rewrite so that the function cpuacct_add, that fork calls,
will use system calls instead of standard lib calls.

Signed-off-by: christian bejram <christian.bejram@stericsson.com>

Change-Id: Iff22ea6b424ce9f9bf0ac8e9c76593f689e0cc86
2011-12-06 08:39:18 -08:00
Jean-Baptiste Queru
c5819d427d Merge 35765066 from ics-mr1-plus-aosp
Change-Id: Ibaeb49dc20f3c736417d5cb68769e7b501a61632
2011-12-06 08:35:08 -08:00
Bruce Beare
6d77a81456 am cb835cd7: am cb1df916: string: Fix wrong comparison semantics
* commit 'cb835cd77c8e60b4a9fb8a54a06d4fd4039ae1b0':
  string: Fix wrong comparison semantics
2011-12-05 22:13:21 -08:00
Bruce Beare
35765066b9 am e4a21c89: signal: Align the sigset_t size passed to from user space to kernel.
* commit 'e4a21c89a8b24b32f7a2637b45522dfa59f2aaa4':
  signal: Align the sigset_t size passed to from user space to kernel.
2011-12-05 22:12:08 -08:00
Bruce Beare
cb835cd77c am cb1df916: string: Fix wrong comparison semantics
* commit 'cb1df9161666db2a312814752de67fc623149a9b':
  string: Fix wrong comparison semantics
2011-12-05 22:12:07 -08:00
Bruce Beare
e4a21c89a8 signal: Align the sigset_t size passed to from user space to kernel.
Pass kernel space sigset_t size to __rt_sigprocmask to workaround
the miss-match of NSIG/sigset_t definition between kernel and bionic.

Note: Patch originally from Google...
Change-Id: I4840fdc56d0b90d7ce2334250f04a84caffcba2a
Signed-off-by: Chenyang Du <chenyang.du@intel.com>
Signed-off-by: Bruce Beare <bruce.j.beare@intel.com>
2011-12-05 18:37:33 -08:00
Bruce Beare
cb1df91616 string: Fix wrong comparison semantics
Chars are signed for x86 -- correct the comparison semantics.

Change-Id: I2049e98eb063c0b4e83ea973d3fcae49c6817dde
Author: Liubov Dmitrieva <liubov.dmitrieva@intel.com>
Signed-off-by: Bruce Beare <bruce.j.beare@intel.com>
2011-12-05 18:37:10 -08:00
Bruce Beare
aed4a4c90b am 75039baf: am 89d3fdca: MALLOC_DEBUG: enable the option libc.debug.malloc = 10
* commit '75039bafde8e6f03caffa9d6aa7142a09ba50952':
  MALLOC_DEBUG: enable the option libc.debug.malloc = 10
2011-12-05 17:02:20 -08:00