668da74ef1d4558f699374cb28a9df1a011db122 |
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07-Jul-2014 |
Elliott Hughes <enh@google.com> |
Use __unused rather than self assignment for unused parameters. Clang, reasonably enough, doesn't like self assignment. Change-Id: Ie5843287802949dad148a1a815231035678e1306
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95d3cd0b85724d3702cfb71942f9aa0a5ee27c74 |
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02-Jul-2014 |
Elliott Hughes <enh@google.com> |
Quiten warnings in semaphore.c. Change-Id: I30aff82174f789ab407d2282c07e6207123d4d5b
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2ea60ff0b415ad5b135f498a38c4b56ea75215aa |
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22-May-2014 |
Elliott Hughes <enh@google.com> |
Remove unnecessary #includes of <sys/atomics.h>. Bug: 14903517 Change-Id: I7b5bcebe58774a441da986cc02376dd88e00ea0e
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eb847bc8666842a3cfc9c06e8458ad1abebebaf0 |
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10-Oct-2013 |
Elliott Hughes <enh@google.com> |
Fix x86_64 build, clean up intermediate libraries. The x86_64 build was failing because clone.S had a call to __thread_entry which was being added to a different intermediate .a on the way to making libc.so, and the linker couldn't guarantee statically that such a relocation would be possible. ld: error: out/target/product/generic_x86_64/obj/STATIC_LIBRARIES/libc_common_intermediates/libc_common.a(clone.o): requires dynamic R_X86_64_PC32 reloc against '__thread_entry' which may overflow at runtime; recompile with -fPIC This patch addresses that by ensuring that the caller and callee end up in the same intermediate .a. While I'm here, I've tried to clean up some of the mess that led to this situation too. In particular, this removes libc/private/ from the default include path (except for the DNS code), and splits out the DNS code into its own library (since it's a weird special case of upstream NetBSD code that's diverged so heavily it's unlikely ever to get back in sync). There's more cleanup of the DNS situation possible, but this is definitely a step in the right direction, and it's more than enough to get x86_64 building cleanly. Change-Id: I00425a7245b7a2573df16cc38798187d0729e7c4
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e31bfae2baa96742f998155ee26e56c826a8ce3a |
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15-Nov-2011 |
David 'Digit' Turner <digit@android.com> |
bionic: Do not use <sys/atomics.h> for platform code. We're going to modify the __atomic_xxx implementation to provide full memory barriers, to avoid problems for NDK machine code that link to these functions. First step is to remove their usage from our platform code. We now use inlined versions of the same functions for a slight performance boost. + remove obsolete atomics_x86.c (was never compiled) NOTE: This improvement was benchmarked on various devices. Comparing a pthread mutex lock + atomic increment + unlock we get: - ARMv7 emulator, running on a 2.4 GHz Xeon: before: 396 ns after: 288 ns - x86 emulator in KVM mode on same machine: before: 27 ns after: 27 ns - Google Nexus S, in ARMv7 mode (single-core): before: 82 ns after: 76 ns - Motorola Xoom, in ARMv7 mode (multi-core): before: 121 ns after: 120 ns The code has also been rebuilt in ARMv5TE mode for correctness. Change-Id: Ic1dc72b173d59b2e7af901dd70d6a72fb2f64b17
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519763265ec0b634bd9c264a0aca034882458ecc |
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28-Jun-2010 |
David 'Digit' Turner <digit@google.com> |
libc: Fix sem_post() implementation to wake up all waiting threads. This also allows us to optimize the case where we increment an uncontended semaphore (no need to call futex_wake() then). Change-Id: Iad48efe8551dc66dc89d3e3f18c001e5a6c1939f
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6c8a2f2a5bc8d612ee953f528f2b5eb35983656a |
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11-Jun-2010 |
David 'Digit' Turner <digit@google.com> |
libc: remove cutils dependencies We simply copy the stuff we need from cutils headers. A future patch will change cutils to include the private <bionic_atomic_inline.h> Change-Id: Ib6fd9a03bc9e337ce867bd606dc94c2b4438480a
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6304d8b21891fd0cb7b5a4c25159a3d3b1709d62 |
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03-Jun-2010 |
David 'Digit' Turner <digit@google.com> |
Use private futexes for semaphores, unless they are initialized with pshared != 0. Change-Id: I534e36a7171cd37037ae03b910ba71ea6968286d Note: previously, sem_init() would return an error if pshared != 0.
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7c99c1856fce65c0394cd578c2a8ed37da2f288d |
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28-May-2010 |
Andy McFadden <fadden@android.com> |
Atomic/SMP update, part 3. (manual merge) Update ARM atomic ops to use LDREX/STREX. Stripped out #if 0 chunk. Insert explicit memory barriers in pthread and semaphore code. For bug 2721865. Change-Id: I595cc8e5a8d1e4906b6641115e46208a7e9e755a
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fcd00ebbdf3e7f4e1e7782a65ae10fb0fc03a1aa |
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28-May-2010 |
Andy McFadden <fadden@android.com> |
Atomic/SMP update, part 3. Update ARM atomic ops to use LDREX/STREX. Stripped out #if 0 chunk. Insert explicit memory barriers in pthread and semaphore code. For bug 2721865. Change-Id: I0f153b797753a655702d8be41679273d1d5d6ae7
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4f920f685bb4af8400c70383eecf347a35353778 |
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12-Feb-2010 |
David 'Digit' Turner <digit@google.com> |
Fix sem_post() behaviour to wake up multiple waiting threads.
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294dd0b86b1484aec7549663aff5b19c98a4b7fd |
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12-Feb-2010 |
David 'Digit' Turner <digit@google.com> |
Fix sem_trywait() implementation + update changelog.
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1dc9e472e19acfe6dc7f41e429236e7eef7ceda1 |
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04-Mar-2009 |
The Android Open Source Project <initial-contribution@android.com> |
auto import from //depot/cupcake/@135843
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1767f908af327fa388b1c66883760ad851267013 |
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04-Mar-2009 |
The Android Open Source Project <initial-contribution@android.com> |
auto import from //depot/cupcake/@135843
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d37527501c85edcb3a6a7c8a0b6297d52d434897 |
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20-Jan-2009 |
The Android Open Source Project <initial-contribution@android.com> |
auto import from //branches/cupcake/...@127101
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a27d2baa0c1a2ec70f47ea9199b1dd6762c8a349 |
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21-Oct-2008 |
The Android Open Source Project <initial-contribution@android.com> |
Initial Contribution
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