| 642182341018b282148280a7bdb771493e15bd7d |
|
26-Aug-2014 |
Elliott Hughes <enh@google.com> |
Fix pthread_getattr_np for the main thread.
On most architectures the kernel subtracts a random offset to the stack
pointer in create_elf_tables by calling arch_align_stack before writing
the auxval table and so on. On all but x86 this doesn't cause a problem
because the random offset is less than a page, but on x86 it's up to two
pages. This means that our old technique of rounding the stack pointer
doesn't work. (Our old implementation of that technique was wrong too.)
It's also incorrect to assume that the main thread's stack base and size
are constant. Likewise to assume that the main thread has a guard page.
The main thread is not like other threads.
This patch switches to reading /proc/self/maps (and checking RLIMIT_STACK)
whenever we're asked.
Bug: 17111575
Signed-off-by: Fengwei Yin <fengwei.yin@intel.com>
(cherry picked from commit 57b7a6110e7e8b446fc23cce4765ff625ee0a105)
Change-Id: I87e679ee1c0db8092f2d1221c8e7c1461545c5a4
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| 5386a741e77bfff4e72ca6861fdd3fe2208452ce |
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05-Aug-2014 |
Dan Albert <danalbert@google.com> |
Revert "Replaces vfork() implementation with fork()"
We're getting cold feet on this one... let's put it back.
This reverts commit 210331d9762037afb9b5ed8413079c6f65872df9.
Change-Id: I6b0d3c2b1dbf7f1dc9566979a91b7504c2189269
(cherry picked from commit 6a918870bab1a55a5f57dd7954abd9a8a27c1bc2)
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| 24614b4729a4c8665193f5793b93019b37f779b1 |
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13-Jun-2014 |
Elliott Hughes <enh@google.com> |
Remove __memcmp16 from bionic.
Change-Id: I2486d667d96c8900dd368d855f37c1327161efb7
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| 210331d9762037afb9b5ed8413079c6f65872df9 |
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06-Jun-2014 |
Dan Albert <danalbert@google.com> |
Replaces vfork() implementation with fork()
vfork() was removed from POSIX 2008, so this replaces its implementation
with a call to fork().
Bug: 13935372
Change-Id: I6d99ac9e52a2efc5ee9bda1cab908774b830cedc
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| 40fca0f08b1eb87e283d6f634d9759ed3161f517 |
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04-Jun-2014 |
Dan Albert <danalbert@google.com> |
Removes index() from bionic.
This function has been removed from POSIX.
Unfortunately, we can't leave #define index(a, b) strchr((a), (b)) in its place
because defining a preprocessor macro for index() breaks a whole lot of code.
Bug: 13935372
Change-Id: Ifda348acde06da61c12e7ee2f8fe6950a3174dd1
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| ce9ce28e5d760e32ab6c894dfaf7b8dad6de7ff6 |
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03-Jun-2014 |
Dan Albert <danalbert@google.com> |
Removes bcopy and bzero from bionic.
These symbols are still defined for LP32 for binary compatibility, but
the declarations have been replaced with the POSIX recommended #defines.
Bug: 13935372
Change-Id: Ief7e6ca012db374588ba5839f11e8f3a13a20467
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| b30aff405a220495941f1673b0a5e66c4fa8b84c |
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28-May-2014 |
Elliott Hughes <enh@google.com> |
Revert "Revert "Lose the hand-written futex assembler.""
The problem with the original patch was that using syscall(3) means that
errno can be set, but pthread_create(3) was abusing the TLS errno slot as
a pthread_mutex_t for the thread startup handshake.
There was also a mistake in the check for syscall failures --- it should
have checked against -1 instead of 0 (not just because that's the default
idiom, but also here because futex(2) can legitimately return values > 0).
This patch stops abusing the TLS errno slot and adds a pthread_mutex_t to
pthread_internal_t instead. (Note that for LP64 sizeof(pthread_mutex_t) >
sizeof(uintptr_t), so we could potentially clobber other TLS slots too.)
I've also rewritten the LP32 compatibility stubs to directly reuse the
code from the .h file.
This reverts commit 75c55ff84ebfa686c7ae2cc8ee431c6a33bd46b4.
Bug: 15195455
Change-Id: I6ffb13e5cf6a35d8f59f692d94192aae9ab4593d
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| 75c55ff84ebfa686c7ae2cc8ee431c6a33bd46b4 |
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28-May-2014 |
Narayan Kamath <narayan@google.com> |
Revert "Lose the hand-written futex assembler."
This reverts commit ced906c849704f379d7191822f6d74993d4fa296.
Causes issues on art / dalvik due to a broken return value
check and other undiagnosed issues.
bug: 15195455
Change-Id: I5d6bbb389ecefb0e33a5237421a9d56d32a9317c
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| 6f2bde344123d8503cd60f3ecd3420f39aa24eb9 |
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23-May-2014 |
Bernhard Rosenkraenzer <Bernhard.Rosenkranzer@linaro.org> |
Add optimized AArch64 versions of bcopy and wmemmove based on memmove
Add optimized versions of bcopy and wmemmove for AArch64 based on the
memmove implementation
Change-Id: I82fbe8a7221ce224c567ffcfed7a94a53640fca8
Signed-off-by: Bernhard Rosenkraenzer <Bernhard.Rosenkranzer@linaro.org>
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| fd0ce866ce46ed62aa17dc2959a085cb3bf5755d |
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24-May-2014 |
Christopher Ferris <cferris@google.com> |
Revert "Add optimized AArch64 versions of bcopy and wmemmove based on memmove"
This reverts commit 8167dd7cb98e87ffe9b40e4993c330b244ca2234.
For some reason I thought the bcopy change was bzero. The bcopy code doesn't pass our tests, so reverting until I can figure out what's wrong.
Change-Id: Id89fe959ea5105cd58dff6bba8d91a30cc4bcb07
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| 8167dd7cb98e87ffe9b40e4993c330b244ca2234 |
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23-May-2014 |
Bernhard Rosenkraenzer <Bernhard.Rosenkranzer@linaro.org> |
Add optimized AArch64 versions of bcopy and wmemmove based on memmove
Add optimized versions of bcopy and wmemmove for AArch64 based on the
memmove implementation
Change-Id: Ie43d0ff4f8ec4edba5b4fb5ccacd941f81ac6557
Signed-off-by: Bernhard Rosenkraenzer <Bernhard.Rosenkranzer@linaro.org>
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| ced906c849704f379d7191822f6d74993d4fa296 |
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23-May-2014 |
Elliott Hughes <enh@google.com> |
Lose the hand-written futex assembler.
Also stop exporting 'futex'.
Bug: 12250341
Change-Id: Icc4fa4296cd04dfe0d1061822c69e2eb40c3433a
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| a020a244ae0a185cd53905ec84093e5e6eb7d88c |
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29-Apr-2014 |
Varvara Rainchik <varvara.rainchik@intel.com> |
Add 64-bit Silvermont-optimized string/memory functions.
Add following functions:
bcopy, bzero, memcpy, memmove, memset, stpcpy, stpncpy, strcat, strcpy,
strlen, strncat, strncpy, memcmp, strcmp, strncmp.
Set all these functions as the default ones.
Change-Id: Ic66b250ad8c349a43d25e2d4dea075604f6df6ac
Signed-off-by: Varvara Rainchik <varvara.rainchik@intel.com>
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| 5a92284167ffba6d45210ef6889fa7d255c15d4f |
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24-Apr-2014 |
Varvara Rainchik <varvara.rainchik@intel.com> |
Add 32-bit Silvermont-optimized string/memory functions.
Add following functions:
bcopy, memcpy, memmove, memset, bzero, memcmp, wmemcmp, strlen,
strcpy, strncpy, stpcpy, stpncpy.
Create new directories inside arch-x86 to specify architecture: atom,
silvermont and generic (non atom or silvermont architectures are treated like generic).
Due to introducing optimized versions of stpcpy and stpncpy,
c-implementations of these functions are moved from
common for architectures makefile to arm and mips specific makefiles.
Change-Id: I990f8061c3e9bca1f154119303da9e781c5d086e
Signed-off-by: Varvara Rainchik <varvara.rainchik@intel.com>
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| 5363a45f2b6d4eeb054710d0886bbadea8a15273 |
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08-Apr-2014 |
Elliott Hughes <enh@google.com> |
Clean up localeconv(3).
The OpenBSD doesn't support C99, and the extent to which we support
locales is trivial, so just do it ourselves.
Change-Id: If0a06e627ecc593f7b8ea3e9389365782e49b00e
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| 50282f72bb9be6b49212a3978faec70786e9f97f |
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25-Mar-2014 |
Pavel Chupin <pavel.v.chupin@intel.com> |
Add lconv declaration and localeconv(3)
lconv is taken from ndk/sources/android/support/include/locale.h and
matches
bsd/glibc upstream.
Keep old declaration for 32-bits for compatibility.
localeconv.c and deps are taken from openbsd upstream.
Changed strtod.c accordingly.
Change-Id: I9fcc4d15f5674d192950d80edf26f36006cd31b4
Signed-off-by: Pavel Chupin <pavel.v.chupin@intel.com>
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| b6208836cb9d3254a5e2046a71ac4ec30a0efdf5 |
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26-Feb-2014 |
Elliott Hughes <enh@google.com> |
Fix LP64 builds after OpenBSD string changes.
Change-Id: I07202f6484e716d153d0387fcfc023e119438251
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| 53e43292aac91bf62995788cd5ca2ceb7caea283 |
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25-Feb-2014 |
Elliott Hughes <enh@google.com> |
More OpenBSD cleanup (primarily string).
This patch removes the string/ and wchar/ directories.
Change-Id: Ia489904bc67047e4bc79acb1f3eec21aa3fe5f0d
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| 6e39ba73bfd9504762e8798fd6b293f11d5fdf7e |
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20-Feb-2014 |
Elliott Hughes <enh@google.com> |
Stop advertising an arm32-specific hack like it's a build system feature.
Change-Id: I3a830b4a3516b6eb8e4f8e6e6b122a22a2e341df
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| f25d677147ae55a1f3b6ef7fa3ee27921792813f |
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24-Jan-2014 |
Ying Wang <wangying@google.com> |
Reconfig libc's Android.mk to build for multilib
1. Moved arch-specific setup to their own files:
- <arch>/<arch>.mk, arch-specific configs. Variables in those config
end with the arch name.
- removed the extra complexity introduced by function libc-add-cpu-variant-src,
which seems to be not very useful these days.
2. Separated out the crt object files generation rules and set up the
rules for both TARGET_ARCH and TARGET_2ND_ARCH.
3. Build all the libraries for both TARGET_ARCH and TARGET_2ND_ARCH,
with the arch-specific LOCAL_ variables.
Bug: 11654773
Change-Id: I9c2d85db0affa49199d182236d2210060a321421
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| 0266ae5f884d72da58f33a072e865ba131234a5e |
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11-Feb-2014 |
Elliott Hughes <enh@google.com> |
Switch <elf.h> over to linux uapi under the covers.
Remove the linker's reliance on BSD cruft and use the glibc-style
ElfW macro. (Other code too, but the linker contains the majority
of the code that needs to work for Elf32 and Elf64.)
All platforms need dl_iterate_phdr_static, so it doesn't make sense
to have that part of the per-architecture configuration.
Bug: 12476126
Change-Id: I1d7f918f1303a392794a6cd8b3512ff56bd6e487
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| 36d6188f8cd8b948fb797f11d9620d63d0c2215a |
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19-Nov-2013 |
Elliott Hughes <enh@google.com> |
Clean up forking and cloning.
The kernel now maintains the pthread_internal_t::tid field for us,
and __clone was only used in one place so let's inline it so we don't
have to leave such a dangerous function lying around. Also rename
files to match their content and remove some useless #includes.
Change-Id: I24299fb4a940e394de75f864ee36fdabbd9438f9
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| bf425680e484486803bf21e4c4cd1e3f36614a3c |
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25-Oct-2013 |
Elliott Hughes <enh@google.com> |
Let the compiler worry about implementing ffs(3).
It does at least as good a job as our old hand-written assembly anyway.
Change-Id: If7c4a1ac508bace0b71ee7b67808caa6eabf11d2
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| 9ea4d5f3a852a03b5a2c5676da148a2779821518 |
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19-Oct-2013 |
Elliott Hughes <enh@google.com> |
Fix the x86_64 vfork implementation.
Change-Id: I599507f5058e6196dc2d5b5653d06d5135dd8ac1
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| 8ca530e559328eb52d5a655b963babf1dc6f5088 |
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18-Oct-2013 |
Elliott Hughes <enh@google.com> |
Add ffs and memcmp16 to x86_64.
Change-Id: I652c1356f1c7c52299977181c2cf154386979380
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| c7e9b2331771e5e87c34a8ee3dc6cc41d35b02fe |
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17-Oct-2013 |
Elliott Hughes <enh@google.com> |
Fix sigaction(3) for 64-bit.
Also clean up <signal.h> and revert the hacks that were necessary
for 64-bit in linker/debugger.cpp until now.
Change-Id: I3b0554ca8a49ee1c97cda086ce2c1954ebc11892
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| 1f5af926fa626734981d6b4dcc0ab54e520032a9 |
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16-Oct-2013 |
Elliott Hughes <enh@google.com> |
Fix sigsuspend to use rt_sigsuspend on all platforms.
Change-Id: I981c1a66d35480d4457a0a08a1b042dac94daa5b
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| 19e62325c268a668692e2b65fde2284079f369aa |
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15-Oct-2013 |
Elliott Hughes <enh@google.com> |
Clean up the sigprocmask/pthread_sigmask implementation.
Let's have both use rt_sigprocmask, like in glibc. The 64-bit ABIs
can share the same code as the 32-bit ABIs.
Also, let's test the return side of these calls, not just the
setting.
Bug: 11069919
Change-Id: I11da99f85b5b481870943c520d05ec929b15eddb
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| 2a0b873065edb304fa2d1c54f8de663ea638b8ab |
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09-Oct-2013 |
Elliott Hughes <enh@google.com> |
Fix __errno for LP64 and clean up __get_tls.
If __get_tls has the right type, a lot of confusing casting can disappear.
It was probably a mistake that __get_tls was exposed as a function for mips
and x86 (but not arm), so let's (a) ensure that the __get_tls function
always matches the macro, (b) that we have the function for arm too, and
(c) that we don't have the function for any 64-bit architecture.
Change-Id: Ie9cb989b66e2006524ad7733eb6e1a65055463be
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| 4906e5653c57d49f94940f28556009a88c42a583 |
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04-Oct-2013 |
Elliott Hughes <enh@google.com> |
Add arch-x86_64/bionic.
This is basically half of I5de76f6c46ac87779f207d568a86bb453e2414de from
Pavel Chupin <pavel.v.chupin@intel.com>, but with the stock upstream
setjump/sigsetjmp and H.J. Lu's suggested changes to __rt_sigreturn.
Change-Id: I8167ec228faeb2065391e5bec0413cca662f3d33
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| a567a8e4bd9036bcb74a0a028235a48d8b2a115e |
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18-Dec-2012 |
Pavel Chupin <pavel.v.chupin@intel.com> |
x86_64: Update Makefiles for x86_64 targets and add symlinks
Use basic .c versions of all functions for x86_64 until they are
manually optimized and .s versions released.
Change-Id: I59bba08931e894822db485c8803c2665c226234a
Signed-off-by: Pavel Chupin <pavel.v.chupin@intel.com>
|