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MIPS: ZBOOT: gather string functions into string.c

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In the worst case this adds less then 128 bytes of code
but on the other hand this makes code organization more clear.

Signed-off-by: Antony Pavlov <antonynpavlov@gmail.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Cc: linux-mips@linux-mips.org
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: John Crispin <blogic@openwrt.org>
Cc: Florian Fainelli <f.fainelli@gmail.com>
Acked-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: John Crispin <blogic@openwrt.org>
Patchwork: http://patchwork.linux-mips.org/patch/6344/
This commit is contained in:
Antony Pavlov 2014-01-14 01:30:56 +04:00 committed by Ralf Baechle
parent dfe0924ebd
commit dc4d7b377c
3 changed files with 30 additions and 24 deletions
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4
arch/mips/boot/compressed/Makefile
View File

@ -27,10 +27,10 @@ KBUILD_AFLAGS := $(LINUXINCLUDE) $(KBUILD_AFLAGS) -D__ASSEMBLY__ \
-DBOOT_HEAP_SIZE=$(BOOT_HEAP_SIZE) \
-DKERNEL_ENTRY=$(VMLINUX_ENTRY_ADDRESS)
targets := head.o decompress.o dbg.o uart-16550.o uart-alchemy.o
targets := head.o decompress.o string.o dbg.o uart-16550.o uart-alchemy.o
# decompressor objects (linked with vmlinuz)
vmlinuzobjs-y := $(obj)/head.o $(obj)/decompress.o $(obj)/dbg.o
vmlinuzobjs-y := $(obj)/head.o $(obj)/decompress.o $(obj)/string.o $(obj)/dbg.o
ifdef CONFIG_DEBUG_ZBOOT
vmlinuzobjs-$(CONFIG_SYS_SUPPORTS_ZBOOT_UART16550) += $(obj)/uart-16550.o

22
arch/mips/boot/compressed/decompress.c
View File

@ -43,33 +43,11 @@ void error(char *x)
/* activate the code for pre-boot environment */
#define STATIC static
#if defined(CONFIG_KERNEL_GZIP) || defined(CONFIG_KERNEL_XZ) || \
defined(CONFIG_KERNEL_LZ4)
void *memcpy(void *dest, const void *src, size_t n)
{
int i;
const char *s = src;
char *d = dest;
for (i = 0; i < n; i++)
d[i] = s[i];
return dest;
}
#endif
#ifdef CONFIG_KERNEL_GZIP
#include "../../../../lib/decompress_inflate.c"
#endif
#ifdef CONFIG_KERNEL_BZIP2
void *memset(void *s, int c, size_t n)
{
int i;
char *ss = s;
for (i = 0; i < n; i++)
ss[i] = c;
return s;
}
#include "../../../../lib/decompress_bunzip2.c"
#endif

28
arch/mips/boot/compressed/string.c Normal file
View File

@ -0,0 +1,28 @@
/*
* arch/mips/boot/compressed/string.c
*
* Very small subset of simple string routines
*/
#include <linux/types.h>
void *memcpy(void *dest, const void *src, size_t n)
{
int i;
const char *s = src;
char *d = dest;
for (i = 0; i < n; i++)
d[i] = s[i];
return dest;
}
void *memset(void *s, int c, size_t n)
{
int i;
char *ss = s;
for (i = 0; i < n; i++)
ss[i] = c;
return s;
}