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-rw-r--r--arch/arm/boot/bootp/init.S2
-rw-r--r--arch/arm/boot/compressed/Makefile41
-rw-r--r--arch/arm/boot/compressed/decompress.c50
-rw-r--r--arch/arm/boot/compressed/head.S90
-rw-r--r--arch/arm/boot/compressed/misc.c213
-rw-r--r--arch/arm/boot/compressed/piggy.gzip.S6
-rw-r--r--arch/arm/boot/compressed/piggy.lzma.S6
-rw-r--r--arch/arm/boot/compressed/piggy.lzo.S (renamed from arch/arm/boot/compressed/piggy.S)2
-rw-r--r--arch/arm/boot/compressed/vmlinux.lds.in11
9 files changed, 190 insertions, 231 deletions
diff --git a/arch/arm/boot/bootp/init.S b/arch/arm/boot/bootp/init.S
index df7bc70..8b0de41 100644
--- a/arch/arm/boot/bootp/init.S
+++ b/arch/arm/boot/bootp/init.S
@@ -49,7 +49,7 @@ _start: add lr, pc, #-0x8 @ lr = current load addr
/*
* find the end of the tag list, and then add an INITRD tag on the end.
* If there is already an INITRD tag, then we ignore it; the last INITRD
- * tag takes precidence.
+ * tag takes precedence.
*/
taglist: ldr r10, [r9, #0] @ tag length
teq r10, #0 @ last tag (zero length)?
diff --git a/arch/arm/boot/compressed/Makefile b/arch/arm/boot/compressed/Makefile
index ce39dc5..53faa90 100644
--- a/arch/arm/boot/compressed/Makefile
+++ b/arch/arm/boot/compressed/Makefile
@@ -5,7 +5,7 @@
#
HEAD = head.o
-OBJS = misc.o
+OBJS = misc.o decompress.o
FONTC = $(srctree)/drivers/video/console/font_acorn_8x8.c
#
@@ -63,8 +63,13 @@ endif
SEDFLAGS = s/TEXT_START/$(ZTEXTADDR)/;s/BSS_START/$(ZBSSADDR)/
-targets := vmlinux vmlinux.lds piggy.gz piggy.o font.o font.c \
- head.o misc.o $(OBJS)
+suffix_$(CONFIG_KERNEL_GZIP) = gzip
+suffix_$(CONFIG_KERNEL_LZO) = lzo
+suffix_$(CONFIG_KERNEL_LZMA) = lzma
+
+targets := vmlinux vmlinux.lds \
+ piggy.$(suffix_y) piggy.$(suffix_y).o \
+ font.o font.c head.o misc.o $(OBJS)
ifeq ($(CONFIG_FUNCTION_TRACER),y)
ORIG_CFLAGS := $(KBUILD_CFLAGS)
@@ -87,22 +92,30 @@ endif
ifneq ($(PARAMS_PHYS),)
LDFLAGS_vmlinux += --defsym params_phys=$(PARAMS_PHYS)
endif
-LDFLAGS_vmlinux += -p --no-undefined -X \
- $(shell $(CC) $(KBUILD_CFLAGS) --print-libgcc-file-name) -T
-
-# Don't allow any static data in misc.o, which
-# would otherwise mess up our GOT table
-CFLAGS_misc.o := -Dstatic=
+# ?
+LDFLAGS_vmlinux += -p
+# Report unresolved symbol references
+LDFLAGS_vmlinux += --no-undefined
+# Delete all temporary local symbols
+LDFLAGS_vmlinux += -X
+# Next argument is a linker script
+LDFLAGS_vmlinux += -T
+
+# For __aeabi_uidivmod
+lib1funcs = $(obj)/lib1funcs.o
+
+$(obj)/lib1funcs.S: $(srctree)/arch/$(SRCARCH)/lib/lib1funcs.S FORCE
+ $(call cmd,shipped)
-$(obj)/vmlinux: $(obj)/vmlinux.lds $(obj)/$(HEAD) $(obj)/piggy.o \
- $(addprefix $(obj)/, $(OBJS)) FORCE
+$(obj)/vmlinux: $(obj)/vmlinux.lds $(obj)/$(HEAD) $(obj)/piggy.$(suffix_y).o \
+ $(addprefix $(obj)/, $(OBJS)) $(lib1funcs) FORCE
$(call if_changed,ld)
@:
-$(obj)/piggy.gz: $(obj)/../Image FORCE
- $(call if_changed,gzip)
+$(obj)/piggy.$(suffix_y): $(obj)/../Image FORCE
+ $(call if_changed,$(suffix_y))
-$(obj)/piggy.o: $(obj)/piggy.gz FORCE
+$(obj)/piggy.$(suffix_y).o: $(obj)/piggy.$(suffix_y) FORCE
CFLAGS_font.o := -Dstatic=
diff --git a/arch/arm/boot/compressed/decompress.c b/arch/arm/boot/compressed/decompress.c
new file mode 100644
index 0000000..4c72a97
--- /dev/null
+++ b/arch/arm/boot/compressed/decompress.c
@@ -0,0 +1,50 @@
+#define _LINUX_STRING_H_
+
+#include <linux/compiler.h> /* for inline */
+#include <linux/types.h> /* for size_t */
+#include <linux/stddef.h> /* for NULL */
+#include <linux/linkage.h>
+#include <asm/string.h>
+
+extern unsigned long free_mem_ptr;
+extern unsigned long free_mem_end_ptr;
+extern void error(char *);
+
+#define STATIC static
+#define STATIC_RW_DATA /* non-static please */
+
+#define ARCH_HAS_DECOMP_WDOG
+
+/* Diagnostic functions */
+#ifdef DEBUG
+# define Assert(cond,msg) {if(!(cond)) error(msg);}
+# define Trace(x) fprintf x
+# define Tracev(x) {if (verbose) fprintf x ;}
+# define Tracevv(x) {if (verbose>1) fprintf x ;}
+# define Tracec(c,x) {if (verbose && (c)) fprintf x ;}
+# define Tracecv(c,x) {if (verbose>1 && (c)) fprintf x ;}
+#else
+# define Assert(cond,msg)
+# define Trace(x)
+# define Tracev(x)
+# define Tracevv(x)
+# define Tracec(c,x)
+# define Tracecv(c,x)
+#endif
+
+#ifdef CONFIG_KERNEL_GZIP
+#include "../../../../lib/decompress_inflate.c"
+#endif
+
+#ifdef CONFIG_KERNEL_LZO
+#include "../../../../lib/decompress_unlzo.c"
+#endif
+
+#ifdef CONFIG_KERNEL_LZMA
+#include "../../../../lib/decompress_unlzma.c"
+#endif
+
+void do_decompress(u8 *input, int len, u8 *output, void (*error)(char *x))
+{
+ decompress(input, len, NULL, NULL, output, NULL, error);
+}
diff --git a/arch/arm/boot/compressed/head.S b/arch/arm/boot/compressed/head.S
index d356af7..c5191b1 100644
--- a/arch/arm/boot/compressed/head.S
+++ b/arch/arm/boot/compressed/head.S
@@ -22,19 +22,27 @@
#if defined(CONFIG_DEBUG_ICEDCC)
#ifdef CONFIG_CPU_V6
- .macro loadsp, rb
+ .macro loadsp, rb, tmp
.endm
.macro writeb, ch, rb
mcr p14, 0, \ch, c0, c5, 0
.endm
+#elif defined(CONFIG_CPU_V7)
+ .macro loadsp, rb, tmp
+ .endm
+ .macro writeb, ch, rb
+wait: mrc p14, 0, pc, c0, c1, 0
+ bcs wait
+ mcr p14, 0, \ch, c0, c5, 0
+ .endm
#elif defined(CONFIG_CPU_XSCALE)
- .macro loadsp, rb
+ .macro loadsp, rb, tmp
.endm
.macro writeb, ch, rb
mcr p14, 0, \ch, c8, c0, 0
.endm
#else
- .macro loadsp, rb
+ .macro loadsp, rb, tmp
.endm
.macro writeb, ch, rb
mcr p14, 0, \ch, c1, c0, 0
@@ -50,7 +58,7 @@
.endm
#if defined(CONFIG_ARCH_SA1100)
- .macro loadsp, rb
+ .macro loadsp, rb, tmp
mov \rb, #0x80000000 @ physical base address
#ifdef CONFIG_DEBUG_LL_SER3
add \rb, \rb, #0x00050000 @ Ser3
@@ -59,13 +67,13 @@
#endif
.endm
#elif defined(CONFIG_ARCH_S3C2410)
- .macro loadsp, rb
+ .macro loadsp, rb, tmp
mov \rb, #0x50000000
add \rb, \rb, #0x4000 * CONFIG_S3C_LOWLEVEL_UART_PORT
.endm
#else
- .macro loadsp, rb
- addruart \rb
+ .macro loadsp, rb, tmp
+ addruart \rb, \tmp
.endm
#endif
#endif
@@ -162,9 +170,9 @@ not_angel:
.text
adr r0, LC0
- ARM( ldmia r0, {r1, r2, r3, r4, r5, r6, ip, sp} )
- THUMB( ldmia r0, {r1, r2, r3, r4, r5, r6, ip} )
- THUMB( ldr sp, [r0, #28] )
+ ARM( ldmia r0, {r1, r2, r3, r4, r5, r6, r11, ip, sp})
+ THUMB( ldmia r0, {r1, r2, r3, r4, r5, r6, r11, ip} )
+ THUMB( ldr sp, [r0, #32] )
subs r0, r0, r1 @ calculate the delta offset
@ if delta is zero, we are
@@ -174,12 +182,13 @@ not_angel:
/*
* We're running at a different address. We need to fix
* up various pointers:
- * r5 - zImage base address
- * r6 - GOT start
+ * r5 - zImage base address (_start)
+ * r6 - size of decompressed image
+ * r11 - GOT start
* ip - GOT end
*/
add r5, r5, r0
- add r6, r6, r0
+ add r11, r11, r0
add ip, ip, r0
#ifndef CONFIG_ZBOOT_ROM
@@ -197,10 +206,10 @@ not_angel:
/*
* Relocate all entries in the GOT table.
*/
-1: ldr r1, [r6, #0] @ relocate entries in the GOT
+1: ldr r1, [r11, #0] @ relocate entries in the GOT
add r1, r1, r0 @ table. This fixes up the
- str r1, [r6], #4 @ C references.
- cmp r6, ip
+ str r1, [r11], #4 @ C references.
+ cmp r11, ip
blo 1b
#else
@@ -208,12 +217,12 @@ not_angel:
* Relocate entries in the GOT table. We only relocate
* the entries that are outside the (relocated) BSS region.
*/
-1: ldr r1, [r6, #0] @ relocate entries in the GOT
+1: ldr r1, [r11, #0] @ relocate entries in the GOT
cmp r1, r2 @ entry < bss_start ||
cmphs r3, r1 @ _end < entry
addlo r1, r1, r0 @ table. This fixes up the
- str r1, [r6], #4 @ C references.
- cmp r6, ip
+ str r1, [r11], #4 @ C references.
+ cmp r11, ip
blo 1b
#endif
@@ -239,6 +248,7 @@ not_relocated: mov r0, #0
* Check to see if we will overwrite ourselves.
* r4 = final kernel address
* r5 = start of this image
+ * r6 = size of decompressed image
* r2 = end of malloc space (and therefore this image)
* We basically want:
* r4 >= r2 -> OK
@@ -246,8 +256,7 @@ not_relocated: mov r0, #0
*/
cmp r4, r2
bhs wont_overwrite
- sub r3, sp, r5 @ > compressed kernel size
- add r0, r4, r3, lsl #2 @ allow for 4x expansion
+ add r0, r4, r6
cmp r0, r5
bls wont_overwrite
@@ -263,7 +272,6 @@ not_relocated: mov r0, #0
* r1-r3 = unused
* r4 = kernel execution address
* r5 = decompressed kernel start
- * r6 = processor ID
* r7 = architecture ID
* r8 = atags pointer
* r9-r12,r14 = corrupted
@@ -304,7 +312,8 @@ LC0: .word LC0 @ r1
.word _end @ r3
.word zreladdr @ r4
.word _start @ r5
- .word _got_start @ r6
+ .word _image_size @ r6
+ .word _got_start @ r11
.word _got_end @ ip
.word user_stack+4096 @ sp
LC1: .word reloc_end - reloc_start
@@ -328,7 +337,6 @@ params: ldr r0, =params_phys
*
* On entry,
* r4 = kernel execution address
- * r6 = processor ID
* r7 = architecture number
* r8 = atags pointer
* r9 = run-time address of "start" (???)
@@ -534,7 +542,6 @@ __common_mmu_cache_on:
* r1-r3 = unused
* r4 = kernel execution address
* r5 = decompressed kernel start
- * r6 = processor ID
* r7 = architecture ID
* r8 = atags pointer
* r9-r12,r14 = corrupted
@@ -573,19 +580,19 @@ call_kernel: bl cache_clean_flush
* r1 = corrupted
* r2 = corrupted
* r3 = block offset
- * r6 = corrupted
+ * r9 = corrupted
* r12 = corrupted
*/
call_cache_fn: adr r12, proc_types
#ifdef CONFIG_CPU_CP15
- mrc p15, 0, r6, c0, c0 @ get processor ID
+ mrc p15, 0, r9, c0, c0 @ get processor ID
#else
- ldr r6, =CONFIG_PROCESSOR_ID
+ ldr r9, =CONFIG_PROCESSOR_ID
#endif
1: ldr r1, [r12, #0] @ get value
ldr r2, [r12, #4] @ get mask
- eor r1, r1, r6 @ (real ^ match)
+ eor r1, r1, r9 @ (real ^ match)
tst r1, r2 @ & mask
ARM( addeq pc, r12, r3 ) @ call cache function
THUMB( addeq r12, r3 )
@@ -678,8 +685,8 @@ proc_types:
W(b) __armv4_mmu_cache_off
W(b) __armv4_mmu_cache_flush
- .word 0x56056930
- .word 0xff0ffff0 @ PXA935
+ .word 0x56056900
+ .word 0xffffff00 @ PXA9xx
W(b) __armv4_mmu_cache_on
W(b) __armv4_mmu_cache_off
W(b) __armv4_mmu_cache_flush
@@ -690,12 +697,6 @@ proc_types:
W(b) __armv4_mmu_cache_off
W(b) __armv5tej_mmu_cache_flush
- .word 0x56056930
- .word 0xff0ffff0 @ PXA935
- W(b) __armv4_mmu_cache_on
- W(b) __armv4_mmu_cache_off
- W(b) __armv4_mmu_cache_flush
-
.word 0x56050000 @ Feroceon
.word 0xff0f0000
W(b) __armv4_mmu_cache_on
@@ -735,7 +736,7 @@ proc_types:
.word 0x000f0000
W(b) __armv4_mmu_cache_on
W(b) __armv4_mmu_cache_off
- W(b) __armv4_mmu_cache_flush
+ W(b) __armv5tej_mmu_cache_flush
.word 0x0007b000 @ ARMv6
.word 0x000ff000
@@ -770,8 +771,7 @@ proc_types:
* Turn off the Cache and MMU. ARMv3 does not support
* reading the control register, but ARMv4 does.
*
- * On entry, r6 = processor ID
- * On exit, r0, r1, r2, r3, r12 corrupted
+ * On exit, r0, r1, r2, r3, r9, r12 corrupted
* This routine must preserve: r4, r6, r7
*/
.align 5
@@ -844,10 +844,8 @@ __armv3_mmu_cache_off:
/*
* Clean and flush the cache to maintain consistency.
*
- * On entry,
- * r6 = processor ID
* On exit,
- * r1, r2, r3, r11, r12 corrupted
+ * r1, r2, r3, r9, r11, r12 corrupted
* This routine must preserve:
* r0, r4, r5, r6, r7
*/
@@ -959,7 +957,7 @@ __armv4_mmu_cache_flush:
mov r2, #64*1024 @ default: 32K dcache size (*2)
mov r11, #32 @ default: 32 byte line size
mrc p15, 0, r3, c0, c0, 1 @ read cache type
- teq r3, r6 @ cache ID register present?
+ teq r3, r9 @ cache ID register present?
beq no_cache_id
mov r1, r3, lsr #18
and r1, r1, #7
@@ -1017,7 +1015,7 @@ phex: adr r3, phexbuf
strb r2, [r3, r1]
b 1b
-puts: loadsp r3
+puts: loadsp r3, r1
1: ldrb r2, [r0], #1
teq r2, #0
moveq pc, lr
@@ -1034,7 +1032,7 @@ puts: loadsp r3
putc:
mov r2, r0
mov r0, #0
- loadsp r3
+ loadsp r3, r1
b 2b
memdump: mov r12, r0
diff --git a/arch/arm/boot/compressed/misc.c b/arch/arm/boot/compressed/misc.c
index 17153b5..d2b2ef4 100644
--- a/arch/arm/boot/compressed/misc.c
+++ b/arch/arm/boot/compressed/misc.c
@@ -18,16 +18,22 @@
unsigned int __machine_arch_type;
+#define _LINUX_STRING_H_
+
#include <linux/compiler.h> /* for inline */
#include <linux/types.h> /* for size_t */
#include <linux/stddef.h> /* for NULL */
+#include <linux/linkage.h>
#include <asm/string.h>
+#include <asm/unaligned.h>
+
#ifdef STANDALONE_DEBUG
#define putstr printf
#else
static void putstr(const char *ptr);
+extern void error(char *x);
#include <mach/uncompress.h>
@@ -48,6 +54,18 @@ static void icedcc_putc(int ch)
asm("mcr p14, 0, %0, c0, c5, 0" : : "r" (ch));
}
+
+#elif defined(CONFIG_CPU_V7)
+
+static void icedcc_putc(int ch)
+{
+ asm(
+ "wait: mrc p14, 0, pc, c0, c1, 0 \n\
+ bcs wait \n\
+ mcr p14, 0, %0, c0, c5, 0 "
+ : : "r" (ch));
+}
+
#elif defined(CONFIG_CPU_XSCALE)
static void icedcc_putc(int ch)
@@ -83,7 +101,6 @@ static void icedcc_putc(int ch)
#endif
#define putc(ch) icedcc_putc(ch)
-#define flush() do { } while (0)
#endif
static void putstr(const char *ptr)
@@ -101,57 +118,7 @@ static void putstr(const char *ptr)
#endif
-#define __ptr_t void *
-
-#define memzero(s,n) __memzero(s,n)
-
-/*
- * Optimised C version of memzero for the ARM.
- */
-void __memzero (__ptr_t s, size_t n)
-{
- union { void *vp; unsigned long *ulp; unsigned char *ucp; } u;
- int i;
-
- u.vp = s;
-
- for (i = n >> 5; i > 0; i--) {
- *u.ulp++ = 0;
- *u.ulp++ = 0;
- *u.ulp++ = 0;
- *u.ulp++ = 0;
- *u.ulp++ = 0;
- *u.ulp++ = 0;
- *u.ulp++ = 0;
- *u.ulp++ = 0;
- }
-
- if (n & 1 << 4) {
- *u.ulp++ = 0;
- *u.ulp++ = 0;
- *u.ulp++ = 0;
- *u.ulp++ = 0;
- }
-
- if (n & 1 << 3) {
- *u.ulp++ = 0;
- *u.ulp++ = 0;
- }
-
- if (n & 1 << 2)
- *u.ulp++ = 0;
-
- if (n & 1 << 1) {
- *u.ucp++ = 0;
- *u.ucp++ = 0;
- }
-
- if (n & 1)
- *u.ucp++ = 0;
-}
-
-static inline __ptr_t memcpy(__ptr_t __dest, __const __ptr_t __src,
- size_t __n)
+void *memcpy(void *__dest, __const void *__src, size_t __n)
{
int i = 0;
unsigned char *d = (unsigned char *)__dest, *s = (unsigned char *)__src;
@@ -188,122 +155,20 @@ static inline __ptr_t memcpy(__ptr_t __dest, __const __ptr_t __src,
/*
* gzip delarations
*/
-#define OF(args) args
-#define STATIC static
-
-typedef unsigned char uch;
-typedef unsigned short ush;
-typedef unsigned long ulg;
-
-#define WSIZE 0x8000 /* Window size must be at least 32k, */
- /* and a power of two */
-
-static uch *inbuf; /* input buffer */
-static uch window[WSIZE]; /* Sliding window buffer */
-
-static unsigned insize; /* valid bytes in inbuf */
-static unsigned inptr; /* index of next byte to be processed in inbuf */
-static unsigned outcnt; /* bytes in output buffer */
-
-/* gzip flag byte */
-#define ASCII_FLAG 0x01 /* bit 0 set: file probably ascii text */
-#define CONTINUATION 0x02 /* bit 1 set: continuation of multi-part gzip file */
-#define EXTRA_FIELD 0x04 /* bit 2 set: extra field present */
-#define ORIG_NAME 0x08 /* bit 3 set: original file name present */
-#define COMMENT 0x10 /* bit 4 set: file comment present */
-#define ENCRYPTED 0x20 /* bit 5 set: file is encrypted */
-#define RESERVED 0xC0 /* bit 6,7: reserved */
-
-#define get_byte() (inptr < insize ? inbuf[inptr++] : fill_inbuf())
-
-/* Diagnostic functions */
-#ifdef DEBUG
-# define Assert(cond,msg) {if(!(cond)) error(msg);}
-# define Trace(x) fprintf x
-# define Tracev(x) {if (verbose) fprintf x ;}
-# define Tracevv(x) {if (verbose>1) fprintf x ;}
-# define Tracec(c,x) {if (verbose && (c)) fprintf x ;}
-# define Tracecv(c,x) {if (verbose>1 && (c)) fprintf x ;}
-#else
-# define Assert(cond,msg)
-# define Trace(x)
-# define Tracev(x)
-# define Tracevv(x)
-# define Tracec(c,x)
-# define Tracecv(c,x)
-#endif
-
-static int fill_inbuf(void);
-static void flush_window(void);
-static void error(char *m);
-
extern char input_data[];
extern char input_data_end[];
-static uch *output_data;
-static ulg output_ptr;
-static ulg bytes_out;
-
-static void error(char *m);
-
-static void putstr(const char *);
-
-extern int end;
-static ulg free_mem_ptr;
-static ulg free_mem_end_ptr;
-
-#ifdef STANDALONE_DEBUG
-#define NO_INFLATE_MALLOC
-#endif
-
-#define ARCH_HAS_DECOMP_WDOG
-
-#include "../../../../lib/inflate.c"
-
-/* ===========================================================================
- * Fill the input buffer. This is called only when the buffer is empty
- * and at least one byte is really needed.
- */
-int fill_inbuf(void)
-{
- if (insize != 0)
- error("ran out of input data");
-
- inbuf = input_data;
- insize = &input_data_end[0] - &input_data[0];
-
- inptr = 1;
- return inbuf[0];
-}
+unsigned char *output_data;
+unsigned long output_ptr;
-/* ===========================================================================
- * Write the output window window[0..outcnt-1] and update crc and bytes_out.
- * (Used for the decompressed data only.)
- */
-void flush_window(void)
-{
- ulg c = crc;
- unsigned n;
- uch *in, *out, ch;
-
- in = window;
- out = &output_data[output_ptr];
- for (n = 0; n < outcnt; n++) {
- ch = *out++ = *in++;
- c = crc_32_tab[((int)c ^ ch) & 0xff] ^ (c >> 8);
- }
- crc = c;
- bytes_out += (ulg)outcnt;
- output_ptr += (ulg)outcnt;
- outcnt = 0;
- putstr(".");
-}
+unsigned long free_mem_ptr;
+unsigned long free_mem_end_ptr;
#ifndef arch_error
#define arch_error(x)
#endif
-static void error(char *x)
+void error(char *x)
{
arch_error(x);
@@ -314,22 +179,35 @@ static void error(char *x)
while(1); /* Halt */
}
+asmlinkage void __div0(void)
+{
+ error("Attempting division by 0!");
+}
+
+extern void do_decompress(u8 *input, int len, u8 *output, void (*error)(char *x));
+
#ifndef STANDALONE_DEBUG
-ulg
-decompress_kernel(ulg output_start, ulg free_mem_ptr_p, ulg free_mem_ptr_end_p,
- int arch_id)
+unsigned long
+decompress_kernel(unsigned long output_start, unsigned long free_mem_ptr_p,
+ unsigned long free_mem_ptr_end_p,
+ int arch_id)
{
- output_data = (uch *)output_start; /* Points to kernel start */
+ unsigned char *tmp;
+
+ output_data = (unsigned char *)output_start;
free_mem_ptr = free_mem_ptr_p;
free_mem_end_ptr = free_mem_ptr_end_p;
__machine_arch_type = arch_id;
arch_decomp_setup();
- makecrc();
+ tmp = (unsigned char *) (((unsigned long)input_data_end) - 4);
+ output_ptr = get_unaligned_le32(tmp);
+
putstr("Uncompressing Linux...");
- gunzip();
+ do_decompress(input_data, input_data_end - input_data,
+ output_data, error);
putstr(" done, booting the kernel.\n");
return output_ptr;
}
@@ -341,11 +219,10 @@ int main()
{
output_data = output_buffer;
- makecrc();
putstr("Uncompressing Linux...");
- gunzip();
+ decompress(input_data, input_data_end - input_data,
+ NULL, NULL, output_data, NULL, error);
putstr("done.\n");
return 0;
}
#endif
-
diff --git a/arch/arm/boot/compressed/piggy.gzip.S b/arch/arm/boot/compressed/piggy.gzip.S
new file mode 100644
index 0000000..a68adf9
--- /dev/null
+++ b/arch/arm/boot/compressed/piggy.gzip.S
@@ -0,0 +1,6 @@
+ .section .piggydata,#alloc
+ .globl input_data
+input_data:
+ .incbin "arch/arm/boot/compressed/piggy.gzip"
+ .globl input_data_end
+input_data_end:
diff --git a/arch/arm/boot/compressed/piggy.lzma.S b/arch/arm/boot/compressed/piggy.lzma.S
new file mode 100644
index 0000000..d7e69cf
--- /dev/null
+++ b/arch/arm/boot/compressed/piggy.lzma.S
@@ -0,0 +1,6 @@
+ .section .piggydata,#alloc
+ .globl input_data
+input_data:
+ .incbin "arch/arm/boot/compressed/piggy.lzma"
+ .globl input_data_end
+input_data_end:
diff --git a/arch/arm/boot/compressed/piggy.S b/arch/arm/boot/compressed/piggy.lzo.S
index 54c9518..a425ad9 100644
--- a/arch/arm/boot/compressed/piggy.S
+++ b/arch/arm/boot/compressed/piggy.lzo.S
@@ -1,6 +1,6 @@
.section .piggydata,#alloc
.globl input_data
input_data:
- .incbin "arch/arm/boot/compressed/piggy.gz"
+ .incbin "arch/arm/boot/compressed/piggy.lzo"
.globl input_data_end
input_data_end:
diff --git a/arch/arm/boot/compressed/vmlinux.lds.in b/arch/arm/boot/compressed/vmlinux.lds.in
index a5924b9..d081689 100644
--- a/arch/arm/boot/compressed/vmlinux.lds.in
+++ b/arch/arm/boot/compressed/vmlinux.lds.in
@@ -14,6 +14,13 @@ SECTIONS
/DISCARD/ : {
*(.ARM.exidx*)
*(.ARM.extab*)
+ /*
+ * Discard any r/w data - this produces a link error if we have any,
+ * which is required for PIC decompression. Local data generates
+ * GOTOFF relocations, which prevents it being relocated independently
+ * of the text/got segments.
+ */
+ *(.data)
}
. = TEXT_START;
@@ -36,11 +43,13 @@ SECTIONS
_etext = .;
+ /* Assume size of decompressed image is 4x the compressed image */
+ _image_size = (_etext - _text) * 4;
+
_got_start = .;
.got : { *(.got) }
_got_end = .;
.got.plt : { *(.got.plt) }
- .data : { *(.data) }
_edata = .;
. = BSS_START;
generated by cgit v1.1 at 2025-08-24 20:44:24 +0000