Importing mkelfimage from

ftp://ftp.lnxi.com/pub/mkelfImage/mkelfImage-2.7.tar.gz

Signed-off-by: Stefan Reinauer <stepan@coresystems.de>
Acked-by: Stefan Reinauer <stepan@coresystems.de>



git-svn-id: svn://svn.coreboot.org/coreboot/trunk@3103 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1

12 files changed, 701 insertions, 0 deletions

diff --git a/util/mkelfImage/kunzip_src/arch/alpha/include/stddef.h b/util/mkelfImage/kunzip_src/arch/alpha/include/stddef.h
new file mode 100644
index 0000000000..37ee13858a
--- /dev/null
+++ b/util/mkelfImage/kunzip_src/arch/alpha/include/stddef.h
@@ -0,0 +1,15 @@
+#ifndef ALPHA_STDDEF_H
+#define ALPHA_STDDEF_H
+
+typedef long ptrdiff_t;
+typedef unsigned long size_t;
+typedef long ssize_t;
+
+typedef int wchar_t;
+typedef unsigned int wint_t;
+
+#define NULL 0
+
+#define offsetof(TYPE, MEMBER) ((size_t) &((TYPE *)0)->MEMBER)
+
+#endif /* ALPHA_STDDEF_H */
diff --git a/util/mkelfImage/kunzip_src/arch/alpha/include/stdint.h b/util/mkelfImage/kunzip_src/arch/alpha/include/stdint.h
new file mode 100644
index 0000000000..9b93a0c84f
--- /dev/null
+++ b/util/mkelfImage/kunzip_src/arch/alpha/include/stdint.h
@@ -0,0 +1,53 @@
+#ifndef ALPHA_STDINT_H
+#define ALPHA_STDINT_H
+
+/* Exact integral types */
+typedef unsigned char      uint8_t;
+typedef signed char        int8_t; 
+
+typedef unsigned short     uint16_t;
+typedef signed short       int16_t;
+
+typedef unsigned int       uint32_t;
+typedef signed int         int32_t;
+
+typedef unsigned long      uint64_t;
+typedef signed long        int64_t;
+
+
+/* Small types */
+typedef unsigned char      uint_least8_t;
+typedef signed char        int_least8_t; 
+
+typedef unsigned short     uint_least16_t;
+typedef signed short       int_least16_t;
+
+typedef unsigned int       uint_least32_t;
+typedef signed int         int_least32_t;
+
+typedef unsigned long      uint_least64_t;
+typedef signed long        int_least64_t;
+
+/* Fast Types */
+typedef unsigned char      uint_fast8_t;
+typedef signed char        int_fast8_t; 
+
+typedef unsigned long      uint_fast16_t;
+typedef signed long        int_fast16_t;
+
+typedef unsigned long      uint_fast32_t;
+typedef signed long        int_fast32_t;
+
+typedef unsigned long      uint_fast64_t;
+typedef signed long        int_fast64_t;
+
+/* Types for `void *' pointers.  */
+typedef long               intptr_t;
+typedef unsigned long      uintptr_t;
+
+/* Largest integral types */
+typedef long               intmax_t;
+typedef unsigned long      uintmax_t;
+
+
+#endif /* ALPHA_STDINT_H */
diff --git a/util/mkelfImage/kunzip_src/arch/alpha/include/va-alpha.h b/util/mkelfImage/kunzip_src/arch/alpha/include/va-alpha.h
new file mode 100644
index 0000000000..2528a712ad
--- /dev/null
+++ b/util/mkelfImage/kunzip_src/arch/alpha/include/va-alpha.h
@@ -0,0 +1,128 @@
+/* GNU C varargs and stdargs support for the DEC Alpha.  */
+
+/* Note:  We must use the name __builtin_savregs.  GCC attaches special
+   significance to that name.  In particular, regardless of where in a
+   function __builtin_saveregs is called, GCC moves the call up to the
+   very start of the function.  */
+
+/* Define __gnuc_va_list.  */
+
+#ifndef __GNUC_VA_LIST
+#define __GNUC_VA_LIST
+
+/* In VMS, __gnuc_va_list is simply char *; on OSF, it's a structure.  */
+
+#ifdef __VMS__
+typedef char *__gnuc_va_list;
+#else
+
+typedef struct {
+  char *__base;			/* Pointer to first integer register. */
+  int __offset;			/* Byte offset of args so far. */
+} __gnuc_va_list;
+#endif
+
+#endif /* __GNUC_VA_LIST */
+
+/* If this is for internal libc use, don't define anything but
+   __gnuc_va_list.  */
+
+#if !defined(__GNUC_VA_LIST_1) && (defined (_STDARG_H) || defined (_VARARGS_H))
+#define __GNUC_VA_LIST_1
+
+#define _VA_LIST
+#define _VA_LIST_
+
+typedef __gnuc_va_list va_list;
+
+#if !defined(_STDARG_H)
+
+/* varargs support */
+#define va_alist __builtin_va_alist
+#define va_dcl	 int __builtin_va_alist;...
+#ifdef __VMS__
+#define va_start(pvar) ((pvar) = __builtin_saveregs ())
+#else
+#define va_start(pvar) ((pvar) = * (__gnuc_va_list *) __builtin_saveregs ())
+#endif
+
+#else /* STDARG.H */
+
+/* ANSI alternative.  */
+
+/* Call __builtin_next_arg even though we aren't using its value, so that
+   we can verify that firstarg is correct.  */
+
+#ifdef __VMS__
+#define va_start(pvar, firstarg)				\
+  (__builtin_next_arg (firstarg),				\
+   (pvar) = __builtin_saveregs ())
+#else
+#define va_start(pvar, firstarg)				\
+  (__builtin_next_arg (firstarg),				\
+   (pvar) = *(__gnuc_va_list *) __builtin_saveregs ())
+#endif
+
+#endif /* _STDARG_H */
+
+#define va_end(__va)	((void) 0)
+
+/* Values returned by __builtin_classify_type.  */
+
+enum {
+  __no_type_class = -1,
+  __void_type_class,
+  __integer_type_class,
+  __char_type_class,
+  __enumeral_type_class,
+  __boolean_type_class,
+  __pointer_type_class,
+  __reference_type_class,
+  __offset_type_class,
+  __real_type_class,
+  __complex_type_class,
+  __function_type_class,
+  __method_type_class,
+  __record_type_class,
+  __union_type_class,
+  __array_type_class,
+  __string_type_class,
+  __set_type_class,
+  __file_type_class,
+  __lang_type_class
+};
+
+/* Note that parameters are always aligned at least to a word boundary
+   (when passed) regardless of what GCC's __alignof__ operator says.  */
+
+/* Avoid errors if compiling GCC v2 with GCC v1.  */
+#if __GNUC__ == 1
+#define __extension__
+#endif
+
+/* Get the size of a type in bytes, rounded up to an integral number
+   of words.  */
+
+#define __va_tsize(__type)  \
+  (((sizeof (__type) + __extension__ sizeof (long long) - 1)   \
+    / __extension__ sizeof (long long)) * __extension__ sizeof (long long))
+
+#ifdef __VMS__
+#define va_arg(__va, __type)						\
+(*(((__va) += __va_tsize (__type)),					\
+   (__type *)(void *)((__va) - __va_tsize (__type))))
+
+#else
+
+#define va_arg(__va, __type)						\
+(*(((__va).__offset += __va_tsize (__type)),				\
+   (__type *)(void *)((__va).__base + (__va).__offset			\
+	      - (((__builtin_classify_type (* (__type *) 0)		\
+		   == __real_type_class) && (__va).__offset <= (6 * 8))	\
+		 ? (6 * 8) + 8 : __va_tsize (__type)))))
+#endif
+
+/* Copy __gnuc_va_list into another variable of this type.  */
+#define __va_copy(dest, src) (dest) = (src)
+
+#endif /* __GNUC_VA_LIST_1 */
diff --git a/util/mkelfImage/kunzip_src/arch/alpha/lib/Makefile b/util/mkelfImage/kunzip_src/arch/alpha/lib/Makefile
new file mode 100644
index 0000000000..2fd15b06a0
--- /dev/null
+++ b/util/mkelfImage/kunzip_src/arch/alpha/lib/Makefile
@@ -0,0 +1,17 @@
+ARCH_OPTIONS=
+
+OBJECTS += __divqu.o __remqu.o __divlu.o __remlu.o
+
+$(OBJDIR)/__divqu.o: $(SRC)/arch/alpha/lib/divide.S
+	$(CC) $(CFLAGS) -DDIV -c -o $@ $^
+
+$(OBJDIR)/__remqu.o: $(SRC)/arch/alpha/lib/divide.S
+	$(CC) $(CFLAGS) -DREM -c -o $@ $^
+
+$(OBJDIR)/__divlu.o: $(SRC)/arch/alpha/lib/divide.S
+	$(CC) $(CFLAGS) -DDIV -DINTSIZE -c -o $@ $^
+
+$(OBJDIR)/__remlu.o: $(SRC)/arch/alpha/lib/divide.S
+	$(CC) $(CFLAGS) -DREM -DINTSIZE -c -o $@ $^
+
+
diff --git a/util/mkelfImage/kunzip_src/arch/alpha/lib/divide.S b/util/mkelfImage/kunzip_src/arch/alpha/lib/divide.S
new file mode 100644
index 0000000000..a4bc1f751e
--- /dev/null
+++ b/util/mkelfImage/kunzip_src/arch/alpha/lib/divide.S
@@ -0,0 +1,195 @@
+/*
+ * cpu/ev6/divide.S
+ *
+ * (C) 1995 Linus Torvalds
+ *
+ * Alpha division..
+ */
+
+/*
+ * The alpha chip doesn't provide hardware division, so we have to do it
+ * by hand.  The compiler expects the functions
+ *
+ *	__divqu: 64-bit unsigned long divide
+ *	__remqu: 64-bit unsigned long remainder
+ *	__divqs/__remqs: signed 64-bit
+ *	__divlu/__remlu: unsigned 32-bit
+ *	__divls/__remls: signed 32-bit
+ *
+ * These are not normal C functions: instead of the normal
+ * calling sequence, these expect their arguments in registers
+ * $24 and $25, and return the result in $27. Register $28 may
+ * be clobbered (assembly temporary), anything else must be saved. 
+ *
+ * In short: painful.
+ *
+ * This is a rather simple bit-at-a-time algorithm: it's very good
+ * at dividing random 64-bit numbers, but the more usual case where
+ * the divisor is small is handled better by the DEC algorithm
+ * using lookup tables. This uses much less memory, though, and is
+ * nicer on the cache.. Besides, I don't know the copyright status
+ * of the DEC code.
+ */
+
+/*
+ * My temporaries:
+ *	$0 - current bit
+ *	$1 - shifted divisor
+ *	$2 - modulus/quotient
+ *
+ *	$23 - return address
+ *	$24 - dividend
+ *	$25 - divisor
+ *
+ *	$27 - quotient/modulus
+ *	$28 - compare status
+ */
+
+#define halt .long 0
+
+/*
+ * Select function type and registers
+ */
+#define mask	$0
+#define divisor	$1
+#define compare $28
+#define tmp1	$3
+#define tmp2	$4
+
+#ifdef DIV
+#define DIV_ONLY(x,y...) x,##y
+#define MOD_ONLY(x,y...)
+#define func(x) __div##x
+#define modulus $2
+#define quotient $27
+#define GETSIGN(x) xor $24,$25,x
+#define STACK 48
+#else
+#define DIV_ONLY(x,y...)
+#define MOD_ONLY(x,y...) x,##y
+#define func(x) __rem##x
+#define modulus $27
+#define quotient $2
+#define GETSIGN(x) bis $24,$24,x
+#define STACK 32
+#endif
+
+/*
+ * For 32-bit operations, we need to extend to 64-bit
+ */
+#ifdef INTSIZE
+#define ufunction func(lu)
+#define sfunction func(l)
+#define LONGIFY(x) zapnot x,15,x
+#define SLONGIFY(x) addl x,0,x
+#else
+#define ufunction func(qu)
+#define sfunction func(q)
+#define LONGIFY(x)
+#define SLONGIFY(x)
+#endif
+
+.set noat
+.align	3
+.globl	ufunction
+.ent	ufunction
+ufunction:
+	subq	$30,STACK,$30
+	.frame	$30,STACK,$23
+	.prologue 0
+
+7:	stq	$1, 0($30)
+	bis	$25,$25,divisor
+	stq	$2, 8($30)
+	bis	$24,$24,modulus
+	stq	$0,16($30)
+	bis	$31,$31,quotient
+	LONGIFY(divisor)
+	stq	tmp1,24($30)
+	LONGIFY(modulus)
+	bis	$31,1,mask
+	DIV_ONLY(stq tmp2,32($30))
+	beq	divisor, 9f			/* div by zero */
+
+#ifdef INTSIZE
+	/*
+	 * shift divisor left, using 3-bit shifts for
+	 * 32-bit divides as we can't overflow. Three-bit
+	 * shifts will result in looping three times less
+	 * here, but can result in two loops more later.
+	 * Thus using a large shift isn't worth it (and
+	 * s8add pairs better than a sll..)
+	 */
+1:	cmpult	divisor,modulus,compare
+	s8addq	divisor,$31,divisor
+	s8addq	mask,$31,mask
+	bne	compare,1b
+#else
+1:	cmpult	divisor,modulus,compare
+	blt     divisor, 2f
+	addq	divisor,divisor,divisor
+	addq	mask,mask,mask
+	bne	compare,1b
+	unop
+#endif
+
+	/* ok, start to go right again.. */
+2:	DIV_ONLY(addq quotient,mask,tmp2)
+	srl	mask,1,mask
+	cmpule	divisor,modulus,compare
+	subq	modulus,divisor,tmp1
+	DIV_ONLY(cmovne compare,tmp2,quotient)
+	srl	divisor,1,divisor
+	cmovne	compare,tmp1,modulus
+	bne	mask,2b
+
+9:	ldq	$1, 0($30)
+	ldq	$2, 8($30)
+	ldq	$0,16($30)
+	ldq	tmp1,24($30)
+	DIV_ONLY(ldq tmp2,32($30))
+	addq	$30,STACK,$30
+	ret	$31,($23),1
+	.end	ufunction
+
+/*
+ * Uhh.. Ugly signed division. I'd rather not have it at all, but
+ * it's needed in some circumstances. There are different ways to
+ * handle this, really. This does:
+ * 	-a / b = a / -b = -(a / b)
+ *	-a % b = -(a % b)
+ *	a % -b = a % b
+ * which is probably not the best solution, but at least should
+ * have the property that (x/y)*y + (x%y) = x.
+ */
+.align 3
+.globl	sfunction
+.ent	sfunction
+sfunction:
+	subq	$30,STACK,$30
+	.frame	$30,STACK,$23
+	.prologue 0
+	bis	$24,$25,$28
+	SLONGIFY($28)
+	bge	$28,7b
+	stq	$24,0($30)
+	subq	$31,$24,$28
+	stq	$25,8($30)
+	cmovlt	$24,$28,$24	/* abs($24) */
+	stq	$23,16($30)
+	subq	$31,$25,$28
+	stq	tmp1,24($30)
+	cmovlt	$25,$28,$25	/* abs($25) */
+	unop
+	bsr	$23,ufunction
+	ldq	$24,0($30)
+	ldq	$25,8($30)
+	GETSIGN($28)
+	subq	$31,$27,tmp1
+	SLONGIFY($28)
+	ldq	$23,16($30)
+	cmovlt	$28,tmp1,$27
+	ldq	tmp1,24($30)
+	addq	$30,STACK,$30
+	ret	$31,($23),1
+	.end	sfunction
diff --git a/util/mkelfImage/kunzip_src/arch/alpha/lib/kunzip.lds b/util/mkelfImage/kunzip_src/arch/alpha/lib/kunzip.lds
new file mode 100644
index 0000000000..ed632686a8
--- /dev/null
+++ b/util/mkelfImage/kunzip_src/arch/alpha/lib/kunzip.lds
@@ -0,0 +1,50 @@
+PAGE_SIZE = 65536;
+BASIC_ALIGN = 8;
+OUTPUT_FORMAT("elf64-alpha")
+ENTRY(__start)
+SECTIONS
+{
+	. = PAGE_SIZE;
+	_start = .;
+	/*
+	 * First we place the code and read only data (typically const declared).
+	 * This get placed in rom.
+	 */
+	.text : {
+		_text = .;
+		*(.text)
+		_etext = .;
+		_rodata = .;
+		*(.rodata);
+		_erodata = .;
+	}
+	/* Global data */
+	.data : {
+		_data = .;
+		*(.data) 
+		CONSTRUCTORS
+		*(.got)
+		*(.sdata)
+		_edata = .;
+	}
+	
+	/* Important align _bss so bss may be zeroed with quadword access */
+	. = ALIGN(BASIC_ALIGN);
+	.bss : {
+		_bss = .;
+		*(.sbss) 
+		*(.scommon)
+		*(.bss)
+		*(COMMON)
+		*(.heap)
+		*(.stack)
+		/* Important align _ebss so bss may be zeroed with quadword access */
+		. = ALIGN(BASIC_ALIGN);
+		_ebss = .;
+	}
+	_end = .;
+
+	/DISCARD/ : {
+		*(*)
+	}
+}
diff --git a/util/mkelfImage/kunzip_src/arch/alpha/lib/start.S b/util/mkelfImage/kunzip_src/arch/alpha/lib/start.S
new file mode 100644
index 0000000000..a89f4ca6de
--- /dev/null
+++ b/util/mkelfImage/kunzip_src/arch/alpha/lib/start.S
@@ -0,0 +1,89 @@
+.set noat
+.set noreorder
+.text
+
+__original_registers:
+	.quad 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0
+
+__entry:
+	.quad entry
+
+.globl __start
+__start:
+	br $27, __save_registers
+__save_registers:
+	lda $27, (__original_registers - __save_registers)($27)
+	stq $0,    0($27)
+	stq $1,    8($27)
+	stq $2,   16($27)
+	stq $3,   24($27)
+	stq $4,   32($27)
+	stq $5,   40($27)
+	stq $6,   48($27)
+	stq $7,   56($27)
+	stq $8,   64($27)
+	stq $9,   72($27)
+	stq $10,  80($27)
+	stq $11,  88($27)
+	stq $12,  96($27)
+	stq $13, 104($27)
+	stq $14, 112($27)
+	stq $15, 120($27)
+	stq $16, 128($27)
+	stq $17, 136($27)
+	stq $18, 144($27)
+	stq $19, 152($27)
+	stq $20, 160($27)
+	stq $21, 168($27)
+	stq $22, 176($27)
+	stq $23, 184($27)
+	stq $24, 192($27)
+	stq $25, 200($27)
+	stq $26, 208($27)
+	stq $28, 224($27)
+	stq $29, 232($27)
+	stq $30, 240($27)
+
+__normal_start:
+	ldgp $29, (__normal_start - __original_registers)($27)
+	lda  $30, _estack
+	jsr  $26, kunzip
+
+.globl jmp_to_program_entry
+jmp_to_program_entry:
+	br   $27, __restore_registers
+__restore_registers:
+	lda  $27,(__original_registers - __restore_registers)($27)
+	stq  $16, (__entry - __original_registers)($27)
+	ldq $0,    0($27)
+	ldq $1,    8($27)
+	ldq $2,   16($27)
+	ldq $3,   24($27)
+	ldq $4,   32($27)
+	ldq $5,   40($27)
+	ldq $6,   48($27)
+	ldq $7,   56($27)
+	ldq $8,   64($27)
+	ldq $9,   72($27)
+	ldq $10,  80($27)
+	ldq $11,  88($27)
+	ldq $12,  96($27)
+	ldq $13, 104($27)
+	ldq $14, 112($27)
+	ldq $15, 120($27)
+	ldq $16, 128($27)
+	ldq $17, 136($27)
+	ldq $18, 144($27)
+	ldq $19, 152($27)
+	ldq $20, 160($27)
+	ldq $21, 168($27)
+	ldq $22, 176($27)
+	ldq $23, 184($27)
+	ldq $24, 192($27)
+	ldq $25, 200($27)
+	ldq $26, 208($27)
+	ldq $28, 224($27)
+	ldq $29, 232($27)
+	ldq $30, 240($27)
+	ldq $27, (__entry - __original_registers)($27)
+	jsr $31, ($27)
diff --git a/util/mkelfImage/kunzip_src/arch/i386/include/stddef.h b/util/mkelfImage/kunzip_src/arch/i386/include/stddef.h
new file mode 100644
index 0000000000..88a3b48957
--- /dev/null
+++ b/util/mkelfImage/kunzip_src/arch/i386/include/stddef.h
@@ -0,0 +1,15 @@
+#ifndef I386_STDDEF_H
+#define I386_STDDEF_H
+
+typedef long ptrdiff_t;
+typedef unsigned long size_t;
+typedef long ssize_t;
+
+typedef int wchar_t;
+typedef unsigned int wint_t;
+
+#define NULL 0
+
+#define offsetof(TYPE, MEMBER) ((size_t) &((TYPE *)0)->MEMBER)
+
+#endif I386_STDDEF_H
diff --git a/util/mkelfImage/kunzip_src/arch/i386/include/stdint.h b/util/mkelfImage/kunzip_src/arch/i386/include/stdint.h
new file mode 100644
index 0000000000..58d7519cde
--- /dev/null
+++ b/util/mkelfImage/kunzip_src/arch/i386/include/stdint.h
@@ -0,0 +1,52 @@
+#ifndef I386_STDINT_H
+#define I386_STDINT_H
+
+/* Exact integral types */
+typedef unsigned char      uint8_t;
+typedef signed char        int8_t; 
+
+typedef unsigned short     uint16_t;
+typedef signed short       int16_t;
+
+typedef unsigned int       uint32_t;
+typedef signed int         int32_t;
+
+typedef unsigned long long uint64_t;
+typedef signed long long   int64_t;
+
+/* Small types */
+typedef unsigned char      uint_least8_t;
+typedef signed char        int_least8_t; 
+
+typedef unsigned short     uint_least16_t;
+typedef signed short       int_least16_t;
+
+typedef unsigned int       uint_least32_t;
+typedef signed int         int_least32_t;
+
+typedef unsigned long long uint_least64_t;
+typedef signed long long   int_least64_t;
+
+/* Fast Types */
+typedef unsigned char      uint_fast8_t;
+typedef signed char        int_fast8_t; 
+
+typedef unsigned int       uint_fast16_t;
+typedef signed int         int_fast16_t;
+
+typedef unsigned int       uint_fast32_t;
+typedef signed int         int_fast32_t;
+
+typedef unsigned long long uint_fast64_t;
+typedef signed long long   int_fast64_t;
+
+/* Types for `void *' pointers.  */
+typedef int                intptr_t;
+typedef unsigned int       uintptr_t;
+
+/* Largest integral types */
+typedef long long int      intmax_t;
+typedef unsigned long long uintmax_t;
+
+
+#endif /* I386_STDINT_H */
diff --git a/util/mkelfImage/kunzip_src/arch/i386/lib/Makefile b/util/mkelfImage/kunzip_src/arch/i386/lib/Makefile
new file mode 100644
index 0000000000..df2474d210
--- /dev/null
+++ b/util/mkelfImage/kunzip_src/arch/i386/lib/Makefile
@@ -0,0 +1 @@
+ARCH_OPTIONS=
diff --git a/util/mkelfImage/kunzip_src/arch/i386/lib/kunzip.lds b/util/mkelfImage/kunzip_src/arch/i386/lib/kunzip.lds
new file mode 100644
index 0000000000..0e649005cf
--- /dev/null
+++ b/util/mkelfImage/kunzip_src/arch/i386/lib/kunzip.lds
@@ -0,0 +1,50 @@
+PAGE_SIZE = 4096;
+BASIC_ALIGN = 8;
+OUTPUT_FORMAT("elf32-i386")
+ENTRY(__start)
+SECTIONS
+{
+	. = PAGE_SIZE;
+	_start = .;
+	/*
+	 * First we place the code and read only data (typically const declared).
+	 * This get placed in rom.
+	 */
+	.text : {
+		_text = .;
+		*(.text)
+		_etext = .;
+		_rodata = .;
+		*(.rodata);
+		_erodata = .;
+	}
+	/* Global data */
+	.data : {
+		_data = .;
+		*(.data) 
+		CONSTRUCTORS
+		*(.got)
+		*(.sdata)
+		_edata = .;
+	}
+	
+	/* Important align _bss so bss may be zeroed with quadword access */
+	. = ALIGN(BASIC_ALIGN);
+	.bss : {
+		_bss = .;
+		*(.sbss) 
+		*(.scommon)
+		*(.bss)
+		*(COMMON)
+		*(.heap)
+		*(.stack)
+		/* Important align _ebss so bss may be zeroed with quadword access */
+		. = ALIGN(BASIC_ALIGN);
+		_ebss = .;
+	}
+	_end = .;
+
+	/DISCARD/ : {
+		*(*)
+	}
+}
diff --git a/util/mkelfImage/kunzip_src/arch/i386/lib/start.S b/util/mkelfImage/kunzip_src/arch/i386/lib/start.S
new file mode 100644
index 0000000000..fec7c9da66
--- /dev/null
+++ b/util/mkelfImage/kunzip_src/arch/i386/lib/start.S
@@ -0,0 +1,36 @@
+.text
+
+__original_registers:
+	.long 0, 0, 0, 0, 0, 0 , 0 , 0
+__entry:
+	.long entry
+
+.globl __start
+__start:
+	movl %eax, 0+__original_registers
+	movl %ebx, 4+__original_registers
+	movl %ecx, 8+__original_registers
+	movl %edx, 12+__original_registers
+	movl %esi, 16+__original_registers
+	movl %edi, 20+__original_registers
+	movl %esp, 24+__original_registers
+	movl %ebp, 28+__original_registers
+
+__normal_start:
+	movl $_estack, %esp
+	call kunzip
+
+.globl jmp_to_program_entry
+jmp_to_program_entry:
+	movl 4(%esp), %eax
+	movl %eax, __entry
+	movl 0+__original_registers, %eax
+	movl 4+__original_registers, %ebx
+	movl 8+__original_registers, %ecx
+	movl 12+__original_registers, %edx
+	movl 16+__original_registers, %esi
+	movl 20+__original_registers, %edi
+	movl 24+__original_registers, %esp
+	movl 28+__original_registers, %ebp
+	jmp *__entry
+	
\ No newline at end of file