| History log of /src/lib/libc/arch/arm/string/bzero.S |
| Revision | | Date | Author | Comments |
| 1.4 |
| 28-Apr-2008 |
martin | branches: 1.4.8;
Remove clause 3 and 4 from TNF licenses
|
| 1.3 |
| 14-Oct-2003 |
scw | branches: 1.3.22; 1.3.30;
Xscale-optimised mem* routines. Contributed by Wasabi Systems.
(Note: memcmp/memset improvements also benefit non-Xscale).
memcmp() - Compare 32-bits at a time if possible. Special-case 6-byte
comparisons, for the benefit of the network stack.
memset() - More loop unrolling, plus use of 'strd' instruction,
bzero() results in > 100% speedup on Xscale.
memcpy() - Big-endian support, unrolled loops, 'strd/pld', plus special-
cases for very common length/alignment combinations.
Benchmarks show ~50% improvment on Xscale.
memmove() - Big-endian support. Use fast memcpy(), above, if the regions
bcopy() don't overlap. Otherwise unchanged
XXX: The Xscale optimisations are not enabled by default, unless /etc/mk.conf
XXX: has the right compiler options. The intention is to pull them in via
XXX: something like libxscale.so, selected at runtime by ld.so.conf.
XXX: (Big-endian support is not affected by this).
|
| 1.2 |
| 16-Jul-2001 |
matt | Changes needed for ARM ELF shared library support.
|
| 1.1 |
| 29-Dec-2000 |
bjh21 | branches: 1.1.2;
Create shared ARM source for libc, and move arm26 port over to using it.
The code is (almost) a direct copy of the current arm26 sources.
It's identical to the current arm32 sources, with the following exceptions:
- _C_LABEL is used on references to C labels from assembler.
- Function returns in assembler have APCS-26 versions in #ifdef __APCS_26__.
- It uses SoftFloat 2a rather than SoftFloat 1a.
The first two of these should be inconsequential. I believe that SoftFloat 2a
should work on arm32 and be backward-compatible with existing code, but this
is not obviously true. For now, arm32 remains using its own bits of libc.
|
| 1.1.2.1 |
| 08-Oct-2001 |
nathanw | Catch up to -current.
|
| 1.3.30.1 |
| 18-May-2008 |
yamt | sync with head.
|
| 1.3.22.1 |
| 28-Aug-2007 |
matt | More thumb support
|
| 1.4.8.2 |
| 28-Apr-2008 |
martin | Remove clause 3 and 4 from TNF licenses
|
| 1.4.8.1 |
| 28-Apr-2008 |
martin | file bzero.S was added on branch christos-time_t on 2008-04-28 20:22:56 +0000
|
