mirror of
git://projects.qi-hardware.com/openwrt-xburst.git
synced 2024-09-20 02:23:50 +03:00
0dc48c489f
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@18439 3c298f89-4303-0410-b956-a3cf2f4a3e73
284 lines
7.6 KiB
Diff
284 lines
7.6 KiB
Diff
--- a/arch/arm/Kconfig
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+++ b/arch/arm/Kconfig
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@@ -18,6 +18,8 @@ config ARM
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select HAVE_KRETPROBES if (HAVE_KPROBES)
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select HAVE_FUNCTION_TRACER if (!XIP_KERNEL)
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select HAVE_GENERIC_DMA_COHERENT
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+ select HAVE_KERNEL_GZIP
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+ select HAVE_KERNEL_LZO
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help
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The ARM series is a line of low-power-consumption RISC chip designs
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licensed by ARM Ltd and targeted at embedded applications and
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--- a/arch/arm/boot/compressed/Makefile
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+++ b/arch/arm/boot/compressed/Makefile
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@@ -63,8 +63,12 @@ endif
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SEDFLAGS = s/TEXT_START/$(ZTEXTADDR)/;s/BSS_START/$(ZBSSADDR)/
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-targets := vmlinux vmlinux.lds piggy.gz piggy.o font.o font.c \
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- head.o misc.o $(OBJS)
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+suffix_$(CONFIG_KERNEL_GZIP) = gzip
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+suffix_$(CONFIG_KERNEL_LZO) = lzo
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+
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+targets := vmlinux vmlinux.lds \
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+ piggy.$(suffix_y) piggy.$(suffix_y).o \
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+ font.o font.c head.o misc.o $(OBJS)
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ifeq ($(CONFIG_FUNCTION_TRACER),y)
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ORIG_CFLAGS := $(KBUILD_CFLAGS)
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@@ -87,22 +91,31 @@ endif
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ifneq ($(PARAMS_PHYS),)
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LDFLAGS_vmlinux += --defsym params_phys=$(PARAMS_PHYS)
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endif
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-LDFLAGS_vmlinux += -p --no-undefined -X \
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- $(shell $(CC) $(KBUILD_CFLAGS) --print-libgcc-file-name) -T
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+# ?
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+LDFLAGS_vmlinux += -p
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+# Report unresolved symbol references
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+LDFLAGS_vmlinux += --no-undefined
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+# Delete all temporary local symbols
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+LDFLAGS_vmlinux += -X
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+# Next argument is a linker script
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+LDFLAGS_vmlinux += -T
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+
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+# For __aeabi_uidivmod
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+lib1funcs = $(srctree)/arch/$(SRCARCH)/lib/lib1funcs.o
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# Don't allow any static data in misc.o, which
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# would otherwise mess up our GOT table
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CFLAGS_misc.o := -Dstatic=
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-$(obj)/vmlinux: $(obj)/vmlinux.lds $(obj)/$(HEAD) $(obj)/piggy.o \
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- $(addprefix $(obj)/, $(OBJS)) FORCE
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+$(obj)/vmlinux: $(obj)/vmlinux.lds $(obj)/$(HEAD) $(obj)/piggy.$(suffix_y).o \
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+ $(addprefix $(obj)/, $(OBJS)) $(lib1funcs) FORCE
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$(call if_changed,ld)
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@:
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-$(obj)/piggy.gz: $(obj)/../Image FORCE
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- $(call if_changed,gzip)
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+$(obj)/piggy.$(suffix_y): $(obj)/../Image FORCE
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+ $(call if_changed,$(suffix_y))
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-$(obj)/piggy.o: $(obj)/piggy.gz FORCE
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+$(obj)/piggy.$(suffix_y).o: $(obj)/piggy.$(suffix_y) FORCE
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CFLAGS_font.o := -Dstatic=
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--- a/arch/arm/boot/compressed/misc.c
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+++ b/arch/arm/boot/compressed/misc.c
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@@ -18,10 +18,15 @@
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unsigned int __machine_arch_type;
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+#define _LINUX_STRING_H_
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+
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#include <linux/compiler.h> /* for inline */
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#include <linux/types.h> /* for size_t */
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#include <linux/stddef.h> /* for NULL */
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#include <asm/string.h>
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+#include <linux/linkage.h>
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+
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+#include <asm/unaligned.h>
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#ifdef STANDALONE_DEBUG
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#define putstr printf
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@@ -188,34 +193,8 @@ static inline __ptr_t memcpy(__ptr_t __d
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/*
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* gzip delarations
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*/
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-#define OF(args) args
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#define STATIC static
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-typedef unsigned char uch;
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-typedef unsigned short ush;
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-typedef unsigned long ulg;
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-
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-#define WSIZE 0x8000 /* Window size must be at least 32k, */
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- /* and a power of two */
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-
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-static uch *inbuf; /* input buffer */
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-static uch window[WSIZE]; /* Sliding window buffer */
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-
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-static unsigned insize; /* valid bytes in inbuf */
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-static unsigned inptr; /* index of next byte to be processed in inbuf */
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-static unsigned outcnt; /* bytes in output buffer */
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-
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-/* gzip flag byte */
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-#define ASCII_FLAG 0x01 /* bit 0 set: file probably ascii text */
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-#define CONTINUATION 0x02 /* bit 1 set: continuation of multi-part gzip file */
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-#define EXTRA_FIELD 0x04 /* bit 2 set: extra field present */
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-#define ORIG_NAME 0x08 /* bit 3 set: original file name present */
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-#define COMMENT 0x10 /* bit 4 set: file comment present */
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-#define ENCRYPTED 0x20 /* bit 5 set: file is encrypted */
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-#define RESERVED 0xC0 /* bit 6,7: reserved */
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-
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-#define get_byte() (inptr < insize ? inbuf[inptr++] : fill_inbuf())
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-
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/* Diagnostic functions */
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#ifdef DEBUG
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# define Assert(cond,msg) {if(!(cond)) error(msg);}
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@@ -233,24 +212,20 @@ static unsigned outcnt; /* bytes in out
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# define Tracecv(c,x)
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#endif
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-static int fill_inbuf(void);
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-static void flush_window(void);
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static void error(char *m);
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extern char input_data[];
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extern char input_data_end[];
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-static uch *output_data;
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-static ulg output_ptr;
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-static ulg bytes_out;
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+static unsigned char *output_data;
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+static unsigned long output_ptr;
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static void error(char *m);
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static void putstr(const char *);
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-extern int end;
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-static ulg free_mem_ptr;
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-static ulg free_mem_end_ptr;
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+static unsigned long free_mem_ptr;
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+static unsigned long free_mem_end_ptr;
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#ifdef STANDALONE_DEBUG
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#define NO_INFLATE_MALLOC
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@@ -258,46 +233,13 @@ static ulg free_mem_end_ptr;
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#define ARCH_HAS_DECOMP_WDOG
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-#include "../../../../lib/inflate.c"
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-
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-/* ===========================================================================
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- * Fill the input buffer. This is called only when the buffer is empty
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- * and at least one byte is really needed.
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- */
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-int fill_inbuf(void)
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-{
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- if (insize != 0)
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- error("ran out of input data");
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-
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- inbuf = input_data;
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- insize = &input_data_end[0] - &input_data[0];
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-
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- inptr = 1;
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- return inbuf[0];
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-}
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+#ifdef CONFIG_KERNEL_GZIP
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+#include "../../../../lib/decompress_inflate.c"
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+#endif
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-/* ===========================================================================
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- * Write the output window window[0..outcnt-1] and update crc and bytes_out.
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- * (Used for the decompressed data only.)
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- */
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-void flush_window(void)
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-{
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- ulg c = crc;
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- unsigned n;
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- uch *in, *out, ch;
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-
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- in = window;
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- out = &output_data[output_ptr];
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- for (n = 0; n < outcnt; n++) {
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- ch = *out++ = *in++;
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- c = crc_32_tab[((int)c ^ ch) & 0xff] ^ (c >> 8);
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- }
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- crc = c;
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- bytes_out += (ulg)outcnt;
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- output_ptr += (ulg)outcnt;
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- outcnt = 0;
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- putstr(".");
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-}
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+#ifdef CONFIG_KERNEL_LZO
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+#include "../../../../lib/decompress_unlzo.c"
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+#endif
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#ifndef arch_error
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#define arch_error(x)
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@@ -314,22 +256,33 @@ static void error(char *x)
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while(1); /* Halt */
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}
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+asmlinkage void __div0(void)
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+{
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+ error("Attempting division by 0!");
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+}
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+
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#ifndef STANDALONE_DEBUG
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-ulg
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-decompress_kernel(ulg output_start, ulg free_mem_ptr_p, ulg free_mem_ptr_end_p,
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- int arch_id)
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+unsigned long
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+decompress_kernel(unsigned long output_start, unsigned long free_mem_ptr_p,
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+ unsigned long free_mem_ptr_end_p,
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+ int arch_id)
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{
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- output_data = (uch *)output_start; /* Points to kernel start */
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+ unsigned char *tmp;
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+
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+ output_data = (unsigned char *)output_start;
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free_mem_ptr = free_mem_ptr_p;
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free_mem_end_ptr = free_mem_ptr_end_p;
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__machine_arch_type = arch_id;
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arch_decomp_setup();
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- makecrc();
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+ tmp = (unsigned char *) (((unsigned long)input_data_end) - 4);
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+ output_ptr = get_unaligned_le32(tmp);
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+
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putstr("Uncompressing Linux...");
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- gunzip();
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+ decompress(input_data, input_data_end - input_data,
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+ NULL, NULL, output_data, NULL, error);
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putstr(" done, booting the kernel.\n");
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return output_ptr;
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}
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@@ -341,11 +294,10 @@ int main()
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{
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output_data = output_buffer;
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- makecrc();
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putstr("Uncompressing Linux...");
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- gunzip();
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+ decompress(input_data, input_data_end - input_data,
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+ NULL, NULL, output_data, NULL, error);
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putstr("done.\n");
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return 0;
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}
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#endif
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-
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--- a/arch/arm/boot/compressed/piggy.S
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+++ /dev/null
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@@ -1,6 +0,0 @@
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- .section .piggydata,#alloc
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- .globl input_data
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-input_data:
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- .incbin "arch/arm/boot/compressed/piggy.gz"
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- .globl input_data_end
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-input_data_end:
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--- /dev/null
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+++ b/arch/arm/boot/compressed/piggy.gzip.S
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@@ -0,0 +1,6 @@
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+ .section .piggydata,#alloc
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+ .globl input_data
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+input_data:
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+ .incbin "arch/arm/boot/compressed/piggy.gzip"
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+ .globl input_data_end
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+input_data_end:
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--- /dev/null
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+++ b/arch/arm/boot/compressed/piggy.lzo.S
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@@ -0,0 +1,6 @@
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+ .section .piggydata,#alloc
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+ .globl input_data
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+input_data:
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+ .incbin "arch/arm/boot/compressed/piggy.lzo"
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+ .globl input_data_end
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+input_data_end:
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