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Author SHA1 Message Date
Ben Cheng
6ad68558ed am e5e6e17c: am 133d97e4: Merge "Add stack unwinding directives to memcpy." 
* commit 'e5e6e17c5bd06e097c5bb4da9a23b5e293309ab9':
  Add stack unwinding directives to memcpy.
 2013-03-05 21:20:42 +00:00
Ben Cheng
e5e6e17c5b am 133d97e4: Merge "Add stack unwinding directives to memcpy." 
* commit '133d97e4b07a733787fb85692ad8427fdc3d1d22':
  Add stack unwinding directives to memcpy.
 2013-03-05 13:17:23 -08:00
Elliott Hughes
c6ef78e83e am 136e00d6: am c96ad9bc: am 7b69ac53: am cf9a9604: Merge "Switch to upstream-freebsd for the unmolested wchar code." 
* commit '136e00d6e9bc19617e49a6b7bf81f749ff8a48e3':
  Switch to upstream-freebsd for the unmolested wchar code.
 2013-03-05 21:14:04 +00:00
Elliott Hughes
136e00d6e9 am c96ad9bc: am 7b69ac53: am cf9a9604: Merge "Switch to upstream-freebsd for the unmolested wchar code." 
* commit 'c96ad9bcd28fcd2b34040a2a696262057a11470b':
  Switch to upstream-freebsd for the unmolested wchar code.
 2013-03-05 21:05:24 +00:00
Ben Cheng
133d97e4b0 Merge "Add stack unwinding directives to memcpy." 2013-03-05 21:04:38 +00:00
Elliott Hughes
c96ad9bcd2 am 7b69ac53: am cf9a9604: Merge "Switch to upstream-freebsd for the unmolested wchar code." 
* commit '7b69ac535abca0e7867524e68f5a3581cc367de8':
  Switch to upstream-freebsd for the unmolested wchar code.
 2013-03-05 20:28:28 +00:00
Elliott Hughes
7b69ac535a am cf9a9604: Merge "Switch to upstream-freebsd for the unmolested wchar code." 
* commit 'cf9a9604adb27600c79ca236578a8be89168202f':
  Switch to upstream-freebsd for the unmolested wchar code.
 2013-03-05 12:27:09 -08:00
Elliott Hughes
cf9a9604ad Merge "Switch to upstream-freebsd for the unmolested wchar code." 2013-03-05 20:13:33 +00:00
The Android Open Source Project
69a278f679 am adff4e86: (-s ours) Reconcile with jb-mr2-release - do not merge 
* commit 'adff4e8630e8d468253255b521caecfbb161dbbe':
 2013-03-05 15:58:51 +00:00
The Android Open Source Project
adff4e8630 Reconcile with jb-mr2-release - do not merge 
Change-Id: I2635d0c79d4adc135c7f0b6345547ed5e3114158
 2013-03-05 07:53:05 -08:00
The Android Automerger
5b5aa0317c merge in jb-mr2-release history after reset to jb-mr2-dev 2013-03-05 05:55:15 -08:00
Elliott Hughes
3f794facd3 am 7ef3ccb7: am 81e0f35a: am 2125c155: am d392e044: Merge "Move realpath.c to upstream-freebsd." 
* commit '7ef3ccb7bb5f334e4ca8911a5d0eca7dd0da6b92':
  Move realpath.c to upstream-freebsd.
 2013-03-04 23:59:47 +00:00
Elliott Hughes
7ef3ccb7bb am 81e0f35a: am 2125c155: am d392e044: Merge "Move realpath.c to upstream-freebsd." 
* commit '81e0f35acc41cfafccc6d28a9122f115ca6e4a16':
  Move realpath.c to upstream-freebsd.
 2013-03-04 23:58:16 +00:00
Elliott Hughes
81e0f35acc am 2125c155: am d392e044: Merge "Move realpath.c to upstream-freebsd." 
* commit '2125c15506cbe9e4062d72ebb723d164e9c01c1f':
  Move realpath.c to upstream-freebsd.
 2013-03-04 23:56:56 +00:00
The Android Open Source Project
781c4b19f4 am 98650e04: (-s ours) Reconcile with jb-mr2-release - do not merge 
* commit '98650e04e6d87e0b2c82151eacbe483ac15949d9':
  Avoid changing the C++ ABI with ssize_t.
 2013-03-04 19:10:07 +00:00
The Android Open Source Project
98650e04e6 Reconcile with jb-mr2-release - do not merge 
Change-Id: I92fd2ef799f358dd022234bc5fa7e6693f0619f0
 2013-03-04 11:06:25 -08:00
Elliott Hughes
2125c15506 am d392e044: Merge "Move realpath.c to upstream-freebsd." 
* commit 'd392e044c7a03ff1c0903c3512d00955bc7de473':
  Move realpath.c to upstream-freebsd.
 2013-03-04 08:25:58 -08:00
The Android Automerger
2ec68f6833 merge in jb-mr2-release history after reset to jb-mr2-dev 2013-03-04 05:55:08 -08:00
Elliott Hughes
eb93ebffba Switch to upstream-freebsd for the unmolested wchar code. 
Change-Id: I87b4d76ff8da04109ae53638eec4f11629798960
 2013-03-01 18:35:56 -08:00
Elliott Hughes
d392e044c7 Merge "Move realpath.c to upstream-freebsd." 2013-03-02 01:22:04 +00:00
Christopher Ferris
0a1ab287ff am 29cc4946: (-s ours) Merge "Remove unused arm defines. DO NOT MERGE" into jb-mr2-dev 
* commit '29cc4946ac8ac89fa0c49e5da8b5b328065d4b2c':
  Remove unused arm defines. DO NOT MERGE
 2013-03-02 01:19:47 +00:00
Christopher Ferris
29cc4946ac Merge "Remove unused arm defines. DO NOT MERGE" into jb-mr2-dev 2013-03-02 01:16:00 +00:00
Elliott Hughes
f0777843c0 Move realpath.c to upstream-freebsd. 
This is actually a slightly newer upstream version than the one I
originally pulled. Hopefully now it's in upstream-freebsd it will
be easier to track upstream, though I still need to sit down and
write the necessary scripts at some point.

Bug: 5110679
Change-Id: I87e563f0f95aa8e68b45578e2a8f448bbf827a33
 2013-03-01 17:11:39 -08:00
Christopher Ferris
947b3ab02b Remove unused arm defines. DO NOT MERGE 
The defines HAVE_32_BYTE_CACHE_LINES and ARCH_ARM_USE_NON_NEON_MEMCPY
are not used by any code. The previous memcpy code that used these
has been split into different architecture versions to avoid the need
for them.

Bug: 8005082

(cherry picked from commit 6e1a5cf31b)

Change-Id: I69654d47db1458136782b5504290f620e924ee75
 2013-03-01 16:54:56 -08:00
Ben Cheng
14283004f5 Add stack unwinding directives to memcpy. 
Also include some Android specific header files.

Change-Id: Idbcbd43458ba945ca8c61bfbc04ea15fc0ae4e00
 2013-03-01 14:56:04 -08:00
Ben Cheng
f85e173616 am b9ef7f4e: am 52b3aed7: am c5c6cb3f: am 66273ac2: Merge "Adding strcmp tuned for Cortex-A15." 
* commit 'b9ef7f4e122bee55110ac703f391ab961484f3d8':
  Adding strcmp tuned for Cortex-A15.
 2013-03-01 18:34:45 +00:00
Ben Cheng
89d7f5e482 am ae280bcd: am 55fc93a9: am 8f149da0: am b3b1ab62: Merge "Adding memcpy tuned for Cortex-A15." 
* commit 'ae280bcdbee8d31096c1b332b20fa32f941ef12f':
  Adding memcpy tuned for Cortex-A15.
 2013-03-01 18:34:45 +00:00
Nick Kralevich
1f415124ec am 04190c53: am cc646773: am 305a9995: am 8fa924e5: Merge "unistd.h: don\'t include sys/capability.h" 
* commit '04190c53e3ac2958322a603d7bfb9b07b92d595e':
  unistd.h: don't include sys/capability.h
 2013-03-01 18:34:44 +00:00
Ben Cheng
b9ef7f4e12 am 52b3aed7: am c5c6cb3f: am 66273ac2: Merge "Adding strcmp tuned for Cortex-A15." 
* commit '52b3aed7982e9d68aad0652f54d5ee180ddf1c5a':
  Adding strcmp tuned for Cortex-A15.
 2013-03-01 18:28:25 +00:00
Ben Cheng
ae280bcdbe am 55fc93a9: am 8f149da0: am b3b1ab62: Merge "Adding memcpy tuned for Cortex-A15." 
* commit '55fc93a90961022e38ef0bb63bcb81d2b4e5aef6':
  Adding memcpy tuned for Cortex-A15.
 2013-03-01 18:28:25 +00:00
Nick Kralevich
04190c53e3 am cc646773: am 305a9995: am 8fa924e5: Merge "unistd.h: don\'t include sys/capability.h" 
* commit 'cc64677342209d38f88138c03d3ded0e1d61637c':
  unistd.h: don't include sys/capability.h
 2013-03-01 18:28:24 +00:00
Ben Cheng
52b3aed798 am c5c6cb3f: am 66273ac2: Merge "Adding strcmp tuned for Cortex-A15." 
* commit 'c5c6cb3f13642386e08acf687b4bc39f568bad0c':
  Adding strcmp tuned for Cortex-A15.
 2013-03-01 10:26:52 -08:00
Ben Cheng
55fc93a909 am 8f149da0: am b3b1ab62: Merge "Adding memcpy tuned for Cortex-A15." 
* commit '8f149da08dc3125824e168f8d29613be80b2085c':
  Adding memcpy tuned for Cortex-A15.
 2013-03-01 10:26:52 -08:00
Nick Kralevich
cc64677342 am 305a9995: am 8fa924e5: Merge "unistd.h: don\'t include sys/capability.h" 
* commit '305a999589a8dfde077589106853522d483d24d2':
  unistd.h: don't include sys/capability.h
 2013-03-01 10:26:51 -08:00
Ben Cheng
c5c6cb3f13 am 66273ac2: Merge "Adding strcmp tuned for Cortex-A15." 
* commit '66273ac2b6b8c2042350204575bd290d96dea681':
  Adding strcmp tuned for Cortex-A15.
 2013-03-01 10:24:58 -08:00
Ben Cheng
8f149da08d am b3b1ab62: Merge "Adding memcpy tuned for Cortex-A15." 
* commit 'b3b1ab6213df15f99c9af3088cfe733428816fd3':
  Adding memcpy tuned for Cortex-A15.
 2013-03-01 10:24:58 -08:00
Nick Kralevich
305a999589 am 8fa924e5: Merge "unistd.h: don\'t include sys/capability.h" 
* commit '8fa924e5dff4588cca8586e0e727b9a544db7083':
  unistd.h: don't include sys/capability.h
 2013-03-01 10:24:57 -08:00
Ben Cheng
66273ac2b6 Merge "Adding strcmp tuned for Cortex-A15." 2013-03-01 18:18:34 +00:00
Ben Cheng
b3b1ab6213 Merge "Adding memcpy tuned for Cortex-A15." 2013-03-01 18:18:05 +00:00
Nick Kralevich
8fa924e5df Merge "unistd.h: don't include sys/capability.h" 2013-03-01 18:14:47 +00:00
Nick Kralevich
6524d3cad7 unistd.h: don't include sys/capability.h 
Don't pull in unnecessary header files. AFAIK, I've fixed all
the code which didn't include the correct header files.

Change-Id: If0b7bba74e77cb24a0cf9ce8968aa07400855e58
 2013-03-01 10:10:55 -08:00
Greta Yorsh
eb149e954e Adding strcmp tuned for Cortex-A15. 
The attached patch provides a new implementation of strcmp for ARM,
using LDRD instead of LDR whenever possible.

For older architectures that do not support LDRD, this implementation
uses the same algorithm as before.

Testing and benchmarking:
* Validation: successfully passes a test that compares different strings
of length 1-128 and offsets 0-8 from a word boundary. Checked on
qemu/A15/A9, ARM/Thumb mode, Big/Little Endian.
* Integration with gcc: no regression on qemu for arm-none-eabi --with-cpu
a15/a9 --with-mode arm/thumb.

Change-Id: I9e230e1b99dbdc9119b69ee858a89038c516a4ea
Signed-off-by: Vassilis Laganakos <vasileios.laganakos@arm.com>
 2013-03-01 10:41:01 +00:00
Greta Yorsh
5b349fc22e Adding memcpy tuned for Cortex-A15. 
The strategy for large block sizes is LDRD and STRD with offset addressing,
where the main loop copies 64 bytes in every iteration, (i.e., 8 calls to
LDRD and STRD pairs), interleaving load and stores (i.e., the pairs of LDRD
and STRD of the same data are consecutive instructions), and the writeback
of an updated address is a separate instruction, which allows us to write
back the accumulated update once per iteration.

This strategy is implemented in memcpy.S. In some configurations, a plain
version of memcpy (included from memcpy-stub.c) is used instead of the
optimized one.

Validation:
* Correctness: checked memcpy using a test harness for block sizes
ranging between 1 to 128, and source and destination buffers alignment
ranging in { 0,1,2,3,4,8,12 } bytes each.
* Performance: benchmarking on Cortex-A15 FPGA indicates that this strategy
is better for A15 than the strategy used by glibc and even slightly better
than using NEON. Benchmarking on Cortex-A9 bare metal and Linux shows
that the proposed strategy is reasonable: not as fast as the version of
memcpy from glibc (which is the best open source strategy for A9), but
comparable with csl and bionic.
* Integration with GCC: no regression for arm-none-eabi --with-cpu
cortex-a15 and cortex-a9.

Change-Id: Ied56354d8992c62ae3e02d582a2bd55585d814b9
Signed-off-by: Vassilis Laganakos <vasileios.laganakos@arm.com>
 2013-03-01 10:40:50 +00:00
Christopher Ferris
c7f9669226 am 7c83a1ed: (-s ours) Break bionic implementations into arch versions. DO NOT MERGE 
* commit '7c83a1ed81a15f3e75836c1ac7d500a952f02e10':
  Break bionic implementations into arch versions. DO NOT MERGE
 2013-03-01 02:36:41 +00:00
Christopher Ferris
7c83a1ed81 Break bionic implementations into arch versions. DO NOT MERGE 
Move arch specific code for arm, mips, x86 into separate
makefiles.
In addition, add different arm cpu versions of memcpy/memset.

Bug: 8005082

(cherry picked from commit acdde8c1cf)

Change-Id: I0108d432af9f6283ae99adfc92a3399e5ab3e31d
 2013-02-28 17:45:16 -08:00
Elliott Hughes
730da15840 Avoid changing the C++ ABI with ssize_t. 
Bug: 8253769
Change-Id: Ia325003ed6e59da553e2bdde7c43515bc191b8ba
 2013-02-28 15:21:51 -08:00
Elliott Hughes
bfc25aa33c am 04766565: am 9c102ccf: am 7fe8229b: am 9c1912c4: Merge "Avoid changing the C++ ABI with ssize_t." 
* commit '04766565d3743d70f679ca180d7fcc35321143b8':
  Avoid changing the C++ ABI with ssize_t.
 2013-02-28 22:38:45 +00:00
Elliott Hughes
04766565d3 am 9c102ccf: am 7fe8229b: am 9c1912c4: Merge "Avoid changing the C++ ABI with ssize_t." 
* commit '9c102ccf9517637f9d293b4e52f9a40573d8fc1d':
  Avoid changing the C++ ABI with ssize_t.
 2013-02-28 19:46:19 +00:00
Elliott Hughes
9c102ccf95 am 7fe8229b: am 9c1912c4: Merge "Avoid changing the C++ ABI with ssize_t." 
* commit '7fe8229b49ea091d769b63052247ca12280975eb':
  Avoid changing the C++ ABI with ssize_t.
 2013-02-28 11:44:20 -08:00
Elliott Hughes
7fe8229b49 am 9c1912c4: Merge "Avoid changing the C++ ABI with ssize_t." 
* commit '9c1912c4bf5eb0edc07bfd333226c4e0b7a629eb':
  Avoid changing the C++ ABI with ssize_t.
 2013-02-28 11:43:11 -08:00