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* Fix strlen using Thumb-2 with -Os -marmJeff Johnston2016-05-111-2/+5
| | | | | | | | | 2016-04-18 Thomas Preud'homme <thomas.preudhomme@arm.com> * libc/machine/arm/strlen-stub.c: Check capabilities of architecture to decide which Thumb implementation to use and fall back to C implementation for architecture not supporting Thumb mode. * libc/machine/arm/strlen.S: Likewise.
* [ARM] Adjust strcmp-armv7.S selection logic.Marcus Shawcroft2015-11-231-1/+1
| | | | | | Reformulate the strcmp-armv7.S selection logic around the architecture features required by the implementation code rather (some) version of the architecture that expose those features.
* [ARM] Factor out the thumb2 -Os implementation.Marcus Shawcroft2015-11-231-12/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | The patch moves the inline ASM thumb2 -Os implementation out into its own .S file. Tested by building newlib and comparing libc.a binaries before and after for all permutations of: Architectures: armv4 armv4t armv5 armv5t armv5te armv6 armv6j armv6k armv6z armv6kz armv6t2 armv6-m armv6s-m armv7 armv7-a armv7ve armv7-r armv7-m armv7e-m armv8-a iwmmxt iwmmxt2 ISAs: thumb arm Optimization Levels: Os O2 Excluding: armv6s-m -mthumb armv6-m -mthumb armv6zk -mthumb armv6z -mthumb armv6k -mthumb armv6j -mthumb
* [ARM] Factor out the thumb1 -Os implementation.cygwin-2_3_1-releasecygwin-2_3_1-relaseMarcus Shawcroft2015-11-131-14/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | The patch moves the inline ASM thumb1 -O2 implementation out into its own .S file. Tested by building newlib and comparing libc.a binaries before and after for all permutations of: Architectures: armv4 armv4t armv5 armv5t armv5te armv6 armv6j armv6k armv6z armv6kz armv6t2 armv6-m armv6s-m armv7 armv7-a armv7ve armv7-r armv7-m armv7e-m armv8-a iwmmxt iwmmxt2 ISAs: thumb arm Optimization Levels: Os O2 Excluding: armv6s-m -mthumb armv6-m -mthumb armv6zk -mthumb armv6z -mthumb armv6k -mthumb armv6j -mthumb
* [ARM] Adding strlen.SMarcus Shawcroft2015-11-131-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The patch adds strlen.S to contain the complementary preprocessor logic to strlen-stub.c intended to provide #inclusion of alternative .S implementations. Initially we just include the existing strlen-armv7.S implementation. We rewrite _ISA_ARMV7 in both strlen.S and strlen-stub.c to use the underlying existing underlying defintion from arm_asm.h in order to avoide including that file, this is in effect the first step towards a move to ACLE predefines only. Tested by building newlib and comparing libc.a binaries before and after for all permutations of: Architectures: armv4 armv4t armv5 armv5t armv5te armv6 armv6j armv6k armv6z armv6kz armv6t2 armv6-m armv6s-m armv7 armv7-a armv7ve armv7-r armv7-m armv7e-m armv8-a iwmmxt iwmmxt2 ISAs: thumb arm Optimization Levels: Os O2 Excluding: armv6s-m -mthumb armv6-m -mthumb armv6zk -mthumb armv6z -mthumb armv6k -mthumb armv6j -mthumb
* [ARM] Rename strlen to strlen-stub.cMarcus Shawcroft2015-11-131-0/+192
In order to maintain consistency both within machine/arm and between machine/arm and machine/aarch64, rename the 'c' stub to -stub.c. Tested by building newlib and comparing libc.a binaries before and after for all permutations of: Architectures: armv4 armv4t armv5 armv5t armv5te armv6 armv6j armv6k armv6z armv6kz armv6t2 armv6-m armv6s-m armv7 armv7-a armv7ve armv7-r armv7-m armv7e-m armv8-a iwmmxt iwmmxt2 ISAs: thumb arm Optimization Levels: Os O2 Excluding: armv6s-m -mthumb armv6-m -mthumb armv6zk -mthumb armv6z -mthumb armv6k -mthumb armv6j -mthumb
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