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kernel: add a memmove() implementation for MIPS boot decompressor

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This is required due to 306-mips_mem_functions_performance.patch, just
add a memmove() implementation to satisfy the lzma2 decompressor code.

Signed-off-by: Florian Fainelli <florian@openwrt.org>

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@43036 3c298f89-4303-0410-b956-a3cf2f4a3e73
This commit is contained in:
Florian Fainelli 2014-10-24 00:16:10 +00:00
parent c70b0ac77b
commit 1d93f1cc50
1 changed files with 24 additions and 0 deletions
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24
target/linux/generic/patches-3.14/063-mips_decompressor_memmove.patch Normal file
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@ -0,0 +1,24 @@
Index: linux-3.14.16/arch/mips/boot/compressed/string.c
===================================================================
--- linux-3.14.16.orig/arch/mips/boot/compressed/string.c 2014-08-07 16:50:59.000000000 -0700
+++ linux-3.14.16/arch/mips/boot/compressed/string.c 2014-10-23 16:42:01.015003995 -0700
@@ -26,3 +26,19 @@
ss[i] = c;
return s;
}
+
+void *memmove(void *__dest, __const void *__src, size_t count)
+{
+ unsigned char *d = __dest;
+ const unsigned char *s = __src;
+
+ if (__dest == __src)
+ return __dest;
+
+ if (__dest < __src)
+ return memcpy(__dest, __src, count);
+
+ while (count--)
+ d[count] = s[count];
+ return __dest;
+}