In 9ec0f03a0d, we added dynamic
linker support for GNU_RELRO protections. These protections
make certain regions of memory read-only, helping protect certain
data structures from accidental or deliberate modifications.
This change adds GNU_RELRO support to STATIC executables. We can
determine if we're compiled with relro protections by examining
our own program headers, which is passed to us by the kernel
in the AT_PHDR and AT_PHNUM auxiliary vectors.
Parts of this code were stolen from the dynamic linker.
Change-Id: Ic17eb5f932218538ec25347ece314d4dc7549de1
This doesn't currently use this info - it's still using the system
property based data-passing. That change is comming.
bug:6799630
Change-Id: I725463209855447cd04bf1457281f3084fffd692
Adds new code to function memset, optimized for Cortex A9.
Copyright (C) ST-Ericsson SA 2010
Added neon implementation
Author: Henrik Smiding henrik.smiding@stericsson.com for ST-Ericsson.
Change-Id: Id3c87767953439269040e15bd30a27aba709aef6
Signed-off-by: Christian Bejram <christian.bejram@stericsson.com>
Adds new code to memcpy function, optimized for Cortex A9.
Adds new ARM-only loop, for operations where source and
destination are aligned.
Copyright (C) ST-Ericsson SA 2010
Modified neon implementation to fit Cortex A9 cache line size,
for those running 32 bytes L2 cache line size.
Also split the implementation in aligned and unaligned access,
for those that allows unaligned memory access with Neon.
For totally aligned operations, arm-only code is used.
Change-Id: I95ebf6164cd6486b12a7e3e98e369db21e7e18d2
Author: Henrik Smiding henrik.smiding@stericsson.com for ST-Ericsson.
Signed-off-by: Christian Bejram <christian.bejram@stericsson.com>
Also support GPG signature verification of updates, and fix remaining
pylint complaints.
The 2012i release of the tz data reflects the following changes recently
circulated on the tz mailing list:
* Cuba switches from DST [2012-11-04] at 01:00. (Thanks to Steffen Thorsen.)
Change-Id: Ie81d395afa40aa217a0196aad8ca1f9a870bbc31
...and don't pass a non-heap pointer to free(3), either.
This patch replaces the "node** prev" with the clearer "node* prev"
style and fixes the null pointer dereference in the old code. That's
not sufficient to fix the reporter's bug, though. The pthread_internal_t*
for the main thread isn't heap-allocated --- __libc_init_tls causes a
pointer to a statically-allocated pthread_internal_t to be added to
the thread list.
Bug: http://code.google.com/p/android/issues/detail?id=37410
Change-Id: I112b7f22782fc789d58f9c783f7b323bda8fb8b7
Most of these tests were in system/extras, but I've added more to cover other
cases explicitly mentioned by POSIX.
Change-Id: I5e8d77e4179028d77306935cceadbb505515dcde
pthread_no_op_detach_after_join test from bionic-unit-tests hangs
on x86 emulator. There is a race in the pthread_join, pthread_exit,
pthread_detach functions:
- pthread_join waits for the non-detached thread
- pthread_detach sets the detached flag on that thread
- the thread executes pthread_exit which just kills the now-detached
thread, without sending the join notification.
This patch improves the test so it fails on ARM too, and modifies
pthread_detach to behave more like glibc, not setting the detach state if
called on a thread that's already being joined (but not returning an error).
Change-Id: I87dc688221ce979ef5178753dd63d01ac0b108e6
Signed-off-by: Sergey Melnikov <sergey.melnikov@intel.com>
The first NULL pointer check against `attr' suggests that `attr' can
be NULL. Then later `attr' is directly dereferenced, suggesting the
opposite.
if (attr == NULL) {
...
} else {
...
}
...
if (attr->stack_base == ...) { ... }
The public API pthread_create(3) allows NULL, and interprets it as "default".
Our implementation actually swaps in a pointer to the global default
pthread_attr_t, so we don't need any NULL checks in _init_thread. (The other
internal caller passes its own pthread_attr_t.)
Change-Id: I0a4e79b83f5989249556a07eed1f2887e96c915e
Signed-off-by: Xi Wang <xi.wang@gmail.com>
The declaration for alphasort() in <dirent.h> used the deprecated:
int alphasort(const void*, const void*);
while both Posix and GLibc use instead:
int alphasort(const struct dirent** a, const struct dirent** b);
See: http://pubs.opengroup.org/onlinepubs/9699919799/functions/alphasort.html
This patch does the following:
- Update the declaration to match Posix/GLibc
- Get rid of the upstream BSD code which isn't compatible with the new
signature.
- Implement a new trivial alphasort() with the right signature, and
ensure that it uses strcoll() instead of strcmp().
- Remove Bionic-specific #ifdef .. #else .. #endif block in
dirent_test.cpp which uses alphasort().
Even through strcoll() currently uses strcmp(), this does the right
thing in the case where we decide to update strcoll() to properly
implement locale-specific ordered comparison.
Change-Id: I4fd45604d8a940aaf2eb0ecd7d73e2f11c9bca96
The 2012h release reflects the following changes recently circulated
on the tz mailing list:
[Brazil] Bahia no longer has DST. (Thanks to Kelley Cook.)
[Brazil] Tocantins has DST. (Thanks to Rodrigo Severo.)
[Israel] Israel has new DST rules next year. (Thanks to Ephraim Silverberg.)
[Jordan] Jordan stays on DST this winter. (Thanks to Steffen Thorsen.)
Bug: 7429010
Change-Id: I0ec5fb72343e42f3f79490dfdea5f7f1946ae76f
The 2012h release reflects the following changes recently circulated
on the tz mailing list:
[Brazil] Bahia no longer has DST. (Thanks to Kelley Cook.)
[Brazil] Tocantins has DST. (Thanks to Rodrigo Severo.)
[Israel] Israel has new DST rules next year. (Thanks to Ephraim Silverberg.)
[Jordan] Jordan stays on DST this winter. (Thanks to Steffen Thorsen.)
Bug: 7429010
Change-Id: I82f19ce49f944f928b6dd8dc5a893786266e5cb9
Based on a pair of patches from Intel:
https://android-review.googlesource.com/#/c/43909/https://android-review.googlesource.com/#/c/44903/
For x86, this patch supports _both_ the global that ARM/MIPS use
and the per-thread TLS entry (%gs:20) that GCC uses by default. This
lets us support binaries built with any x86 toolchain (right now,
the NDK is emitting x86 code that uses the global).
I've also extended the original tests to cover ARM/MIPS too, and
be a little more thorough for x86.
Change-Id: I02f279a80c6b626aecad449771dec91df235ad01
Also separate out the C++ files so we can use -Werror on them. I'd
rather wait for LOCAL_CPPFLAGS to be in AOSP, but this also lets us
see which files still need to be sorted into one bucket or the other.
Change-Id: I6acc1f7c043935c70a3b089f705d218b9aaaba0a
Also remove the obsolete individual files, and the temporary script
that converted between the formats.
Bug: 7012465
Change-Id: I5a4030098e4d53e747fd6d395df2679d1567ee1f
This release reflects the following changes recently circulated on the tz
mailing list:
Samoa fall 2012 and later. (Thanks to Nicholas Pereira
and Robert Elz.)
Palestine fall 2012. (Thanks to Steffen Thorsen.)
This release does not reflect the possible changes discussed yesterday
for Tocantins and Bahia.
(cherry-pick of f0e402dbd257ab495eab514b347db4b3d6844826.)
Change-Id: I8202292b11accedb811194a821dacf837a1bbd6e
This release reflects the following changes recently circulated on the tz
mailing list:
Samoa fall 2012 and later. (Thanks to Nicholas Pereira
and Robert Elz.)
Palestine fall 2012. (Thanks to Steffen Thorsen.)
This release does not reflect the possible changes discussed yesterday
for Tocantins and Bahia.
Change-Id: I52d9d2cd6e8e755885dc258200c014bee75527c9
Also stop building the obsolete three files, now bionic and libcore
both use the new single file.
Bug: 7012465
Change-Id: I1b9b49af7382c57b6cb8820c2275e6d4044b2bb6
I'll come back and remove the separate files (and change the regular 'generate'
script) when the separate files are obsolete, but in the interim period, it's
easier to have both old and new files available.
Bug: 7012465
Change-Id: I36e2fd49c08ff79ded6eca1c5bc4c08837cc490a
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
I gave up trying to use the usual thread-local buffer idiom; calls to
calloc(3) and free(3) from any of the "dl" functions -- which live in
the dynamic linker -- end up resolving to the dynamic linker's stubs.
I tried to work around that, but was just making things more complicated.
This alternative costs us a well-known TLS slot (instead of the
dynamically-allocated TLS slot we'd have used otherwise, so no difference
there), plus an extra buffer inside every pthread_internal_t.
Bug: 5404023
Change-Id: Ie9614edd05b6d1eeaf7bf9172792d616c6361767
LONG_LONG_MIN, LONG_LONG_MAX and ULONG_LONG_MAX are
GLibc-specific macros that are better defined in <limits.h>
instead of the current exotic location (<pthread.h>).
Note that GCC's <limits.h> only defines these macros
when __GNU_LIBRARY__ is also defined. This is only the
case when building against GLibc, so manually redefine
the macros here.
Note that using LLONG_MIN/LLONG_MAX/ULLONG_MAX is the
C99-compliant way to get these values, but it's easier
to define these compatibility macros for the sake of
porting existing code.
Change-Id: I8023918d73b4685238054932f94a4006c1ca7d03
The tests for a NULL pointer and size 0 were the wrong way round.
From Intel's patch 9cae4f2ffc4778ed82be04711d8775a84092d4e2.
Change-Id: I118aff3358aa5f34126d74bfaa43f6e2f1a89055
Add unit tests for dlerror(3) in various situations. I think We're at least
as good as glibc now.
Also factor out the ScopedPthreadMutexLock and use it here too.
Bug: http://code.google.com/p/android/issues/detail?id=38398
Change-Id: I040938b4366ab836e3df46d1d8055b92f4ea6ed8
perf_event_open syscall has a different syscall number for
the 3 supported architectures: arm, x86 and mips. Currenlty
only the arm syscall number is defined for all architectures.
Tracing tools like perf will not work on other architectures
than arm.
Add the different values for perf_event_open on x86 and mips
and run gensyscalls.py to update generated headers.
Change-Id: I2ed78bd42c0e5df8dbc51d784be49cccda5fab30
Author: Irina Tirdea <irina.tirdea@intel.com>
Signed-off-by: Irina Tirdea <irina.tirdea@intel.com>
Signed-off-by: Shuo Gao <shuo.gao@intel.com>
Signed-off-by: Bruce Beare <bruce.j.beare@intel.com>
Signed-off-by: Jack Ren <jack.ren@intel.com>
Updated kernel headers to support a video encoder ioctl to preprend each IDR
frame with SPS/PPS.
related-to-bug: 7245308
Change-Id: I7244c521690d69a905deb19940a04fd4f2e06935
Signed-off-by: Iliyan Malchev <malchev@google.com>
ARM and x86 have custom memcpy implementations, but MIPS relies on the generic
one, which I recently moved.
Change-Id: I9e49243f63b27a4123f2c6623d6286ec82d333c7
