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arm: Update mem* functions to newer versions

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The memcpy/memset/memmove assembly implementations have been taken from
U-Boot, which originally got them from Linux. I turns out that they are
actually not that bad, but they could use an update. This patch pulls in
the current Linux upstream versions of those files, removing some old
U-Boot cruft such as checking whether the two pointers in a memcpy() are
equal (really now?) or side-stepping the R8 register because it was used
for special purposes. It also returns to the good old Linux
ENTRY/ENDPROC macros since we have them now anyway, and straightens out
the W() macro in preparation for unified thumb support.

Change-Id: I138af269b423bef0a237759ac29f1ee58ca206a0
Signed-off-by: Julius Werner <jwerner@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/182179
Reviewed-by: Vincent Palatin <vpalatin@chromium.org>
(cherry picked from commit 777127997bde5785b21d422d0b6eb04c4328b478)
Signed-off-by: Isaac Christensen <isaac.christensen@se-eng.com>
Reviewed-on: http://review.coreboot.org/6918
Tested-by: build bot (Jenkins)
Reviewed-by: David Hendricks <dhendrix@chromium.org>
This commit is contained in:
Julius Werner
2013-12-13 12:59:57 -08:00
committed by Isaac Christensen
parent 64b9ca9d4e
commit d65e214d66
11 changed files with 366 additions and 152 deletions
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2
payloads/libpayload/arch/arm/Makefile.inc
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@@ -33,7 +33,7 @@ head.o-y += head.S
libc-y += main.c sysinfo.c
libc-y += timer.c coreboot.c util.S
libc-y += virtual.c
libc-y += memcpy.S memset.S
libc-y += memcpy.S memset.S memmove.S
libc-y += exception_asm.S exception.c
libc-y += cache.c
libcbfs-$(CONFIG_LP_CBFS) += dummy_media.c