Revert "Add experimental code to self-relocate vmlinuz on e.g. brcm"

This reverts commit 5bd743ad60b85f005235aac2435563b168e012e3.

target/linux/patches/2.6.36/zboot-brcm-reloc.patch

@@ -1,196 +0,0 @@
---- /dev/null	Thu Jan  6 00:14:18 2011
-+++ linux-2.6.36/arch/mips/boot/compressed/selfreloc.lds.S	Wed Jan  5 23:52:43 2011
-@@ -0,0 +1,39 @@
-+/*-
-+ * written 2010 by Thorsten Glaser <tg@debian.org> based on
-+ * arch/mips/kernel/vmlinux.lds and arch/mips/boot/compressed/ld.script
-+ */
-+
-+#include <asm/asm-offsets.h>
-+#include <asm/page.h>
-+#include <asm-generic/vmlinux.lds.h>
-+
-+#undef mips
-+#define mips mips
-+OUTPUT_ARCH(mips)
-+ENTRY(selfreloc_start)
-+PHDRS {
-+	text PT_LOAD FLAGS(7);	/* RWX */
-+}
-+SECTIONS
-+{
-+	. = VMLINUX_LOAD_ADDRESS;
-+	.text : {
-+		*(.text)
-+		*(.text.*)
-+		*(.rodata)
-+		*(.rodata.*)
-+		*(.data)
-+		*(.data.*)
-+		*(.bss)
-+		*(.bss.*)
-+	} :text
-+	/DISCARD/ : {
-+		*(.MIPS.options)
-+		*(.options)
-+		*(.pdr)
-+		*(.reginfo)
-+		*(.comment)
-+		*(.note)
-+		*(.gnu.attributes)
-+	}
-+}
---- /dev/null	Thu Jan  6 00:14:22 2011
-+++ linux-2.6.36/arch/mips/boot/compressed/selfreloc1.S	Wed Jan  5 23:22:30 2011
-@@ -0,0 +1,48 @@
-+/*-
-+ * written 2011 by Thorsten Glaser <tg@freewrt.org> based on
-+ * arch/mips/boot/compressed/head.S
-+ */
-+
-+#include <asm/asm.h>
-+#include <asm/regdef.h>
-+
-+	.set noreorder
-+	.cprestore
-+
-+	.globl	selfreloc_move
-+
-+	.text
-+	LEAF(selfreloc_start)
-+selfreloc_start:
-+	/* Save boot rom start args */
-+	move	s0, a0
-+	move	s1, a1
-+	move	s2, a2
-+	move	s3, a3
-+
-+	PTR_LI	a0, VMLINUZ_LOAD_ADDRESS
-+	PTR_LA  sp, (.stack + 2048)  /* stack address */
-+
-+	PTR_LA	ra, 2f
-+	PTR_LA	k0, selfreloc_move
-+	jr	k0
-+	 nop
-+2:
-+	move	a0, s0
-+	move	a1, s1
-+	move	a2, s2
-+	move	a3, s3
-+	PTR_LI	k0, VMLINUZ_LOAD_ADDRESS
-+	jr	k0
-+	 nop
-+3:
-+	b	3b
-+	 nop
-+	END(selfreloc_start)
-+
-+	.globl	imgbeg
-+imgbeg:	.incbin	"vmlinuz.bin"
-+	.globl	imgend
-+imgend:
-+
-+	.comm .stack,2048,4
---- /dev/null	Thu Jan  6 00:14:26 2011
-+++ linux-2.6.36/arch/mips/boot/compressed/selfreloc2.c	Wed Jan  5 23:34:00 2011
-@@ -0,0 +1,39 @@
-+/* written 2011 by Thorsten Glaser <tg@mirbsd.org> */
-+
-+extern unsigned char imgbeg, imgend;
-+
-+/* debug interfaces */
-+extern void puts(const char *);
-+extern void puthex(unsigned long long);
-+
-+void selfreloc_move(unsigned char *);
-+
-+/*
-+ * Note: we assume we are loaded to VMLINUX_LOAD_ADDRESS,
-+ * the range between it and our end-of-file doesn't over-
-+ * lap VMLINUZ_LOAD_ADDRESS, we need to relocate the code
-+ * there and jump to its first byte.
-+ */
-+
-+void
-+selfreloc_move(unsigned char *dst /* VMLINUZ_LOAD_ADDRESS */)
-+{
-+	unsigned char *src;
-+	unsigned long len;
-+
-+	puts("in selfreloc_move from ");
-+	puthex((unsigned long)&imgbeg);
-+	puts(":");
-+	puthex((unsigned long)&imgend);
-+	puts(" to ");
-+	puthex((unsigned long)dst);
-+	puts(" ...");
-+
-+	src = &imgbeg;
-+	len = (unsigned long)(&imgend) - (unsigned long)(&imgbeg);
-+
-+	while (len--)
-+		*dst++ = *src++;
-+
-+	puts("done\n");
-+}
---- linux-2.6.36/arch/mips/boot/compressed/Makefile~	Wed Jan  5 21:26:40 2011
-+++ linux-2.6.36/arch/mips/boot/compressed/Makefile	Wed Jan  5 23:35:58 2011
-@@ -28,12 +28,14 @@ KBUILD_AFLAGS := $(LINUXINCLUDE) $(KBUIL
- targets := head.o decompress.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
-+vmlinuz-dbg-objs-y := $(obj)/dbg.o
- 
- ifdef CONFIG_DEBUG_ZBOOT
--vmlinuzobjs-$(CONFIG_SYS_SUPPORTS_ZBOOT_UART16550) += $(obj)/uart-16550.o
--vmlinuzobjs-$(CONFIG_MIPS_ALCHEMY)		   += $(obj)/uart-alchemy.o
-+vmlinuz-dbg-objs-$(CONFIG_SYS_SUPPORTS_ZBOOT_UART16550) += $(obj)/uart-16550.o
-+vmlinuz-dbg-objs-$(CONFIG_MIPS_ALCHEMY)		   += $(obj)/uart-alchemy.o
- endif
-+vmlinuzobjs-y += $(vmlinuz-dbg-objs-y)
- 
- targets += vmlinux.bin
- OBJCOPYFLAGS_vmlinux.bin := $(OBJCOPYFLAGS) -O binary -R .comment -S
-@@ -106,4 +107,12 @@ OBJCOPYFLAGS_vmlinuz.srec := $(OBJCOPYFL
- vmlinuz.srec: vmlinuz
- 	$(call cmd,objcopy)
- 
--clean-files := $(objtree)/vmlinuz $(objtree)/vmlinuz.{32,ecoff,bin,srec}
-+AFLAGS_selfreloc1.o := -DVMLINUZ_LOAD_ADDRESS=$(VMLINUZ_LOAD_ADDRESS)
-+arch/mips/boot/compressed/selfreloc1.o: arch/mips/boot/compressed/selfreloc1.S vmlinuz.bin
-+
-+CPPFLAGS_selfreloc.lds := $(KBUILD_CFLAGS)
-+
-+vmlinub.elf: arch/mips/boot/compressed/selfreloc1.o arch/mips/boot/compressed/selfreloc2.o arch/mips/boot/compressed/selfreloc.lds $(vmlinuz-dbg-objs-y)
-+	$(LD) $(LDFLAGS) -T arch/mips/boot/compressed/selfreloc.lds arch/mips/boot/compressed/selfreloc1.o arch/mips/boot/compressed/selfreloc2.o $(vmlinuz-dbg-objs-y) -o $@
-+
-+clean-files := $(objtree)/vmlinuz $(objtree)/vmlinuz.{32,ecoff,bin,srec} $(objtree)/vmlinub.elf $(objtree)/arch/mips/boot/compressed/selfreloc{{1,2}.o,.lds}
---- linux-2.6.36/arch/mips/Makefile~	Wed Jan  5 20:26:12 2011
-+++ linux-2.6.36/arch/mips/Makefile	Wed Jan  5 22:41:38 2011
-@@ -79,6 +79,7 @@ endif
- all-$(CONFIG_BOOT_ELF32)	:= $(vmlinux-32)
- all-$(CONFIG_BOOT_ELF64)	:= $(vmlinux-64)
- all-$(CONFIG_SYS_SUPPORTS_ZBOOT)+= vmlinuz
-+all-$(CONFIG_BCM47XX)		+= vmlinub.elf
- 
- #
- # GCC uses -G 0 -mabicalls -fpic as default.  We don't want PIC in the kernel
-@@ -285,7 +286,7 @@ vmlinux.bin vmlinux.ecoff vmlinux.srec: 
- 	$(Q)$(MAKE) $(build)=arch/mips/boot VMLINUX=$(vmlinux-32) arch/mips/boot/$@
- 
- # boot/compressed
--vmlinuz vmlinuz.bin vmlinuz.ecoff vmlinuz.srec: $(vmlinux-32) FORCE
-+vmlinuz vmlinuz.bin vmlinuz.ecoff vmlinuz.srec vmlinub.elf: $(vmlinux-32) FORCE
- 	$(Q)$(MAKE) $(build)=arch/mips/boot/compressed \
- 	   VMLINUX_LOAD_ADDRESS=$(load-y) 32bit-bfd=$(32bit-bfd) $@
- 
-@@ -322,6 +323,7 @@ define archhelp
- 	echo '  vmlinuz.ecoff        - ECOFF zboot image'
- 	echo '  vmlinuz.bin          - Raw binary zboot image'
- 	echo '  vmlinuz.srec         - SREC zboot image'
-+	echo '  vmlinub.elf          - ELF self-relocating zboot image'
- 	echo
- 	echo '  These will be default as apropriate for a configured platform.'
- endef