Merge branch 'zImage_fixes' of git://git.linaro.org/people/nico/linux into devel-stable
This commit is contained in:
Russell King
Коммит
7b76415375
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@ -74,7 +74,7 @@ ZTEXTADDR := $(CONFIG_ZBOOT_ROM_TEXT)
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ZBSSADDR := $(CONFIG_ZBOOT_ROM_BSS)
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else
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ZTEXTADDR := 0
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ZBSSADDR := ALIGN(4)
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ZBSSADDR := ALIGN(8)
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endif
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SEDFLAGS = s/TEXT_START/$(ZTEXTADDR)/;s/BSS_START/$(ZBSSADDR)/
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@ -98,8 +98,6 @@ endif
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ccflags-y := -fpic -fno-builtin
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asflags-y := -Wa,-march=all
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# Provide size of uncompressed kernel to the decompressor via a linker symbol.
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LDFLAGS_vmlinux = --defsym _image_size=$(shell stat -c "%s" $(obj)/../Image)
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# Supply ZRELADDR to the decompressor via a linker symbol.
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ifneq ($(CONFIG_AUTO_ZRELADDR),y)
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LDFLAGS_vmlinux += --defsym zreladdr=$(ZRELADDR)
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@ -122,10 +120,23 @@ lib1funcs = $(obj)/lib1funcs.o
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$(obj)/lib1funcs.S: $(srctree)/arch/$(SRCARCH)/lib/lib1funcs.S FORCE
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$(call cmd,shipped)
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# We need to prevent any GOTOFF relocs being used with references
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# to symbols in the .bss section since we cannot relocate them
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# independently from the rest at run time. This can be achieved by
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# ensuring that no private .bss symbols exist, as global symbols
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# always have a GOT entry which is what we need.
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# The .data section is already discarded by the linker script so no need
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# to bother about it here.
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check_for_bad_syms = \
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bad_syms=$$($(CROSS_COMPILE)nm $@ | sed -n 's/^.\{8\} [bc] \(.*\)/\1/p') && \
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[ -z "$$bad_syms" ] || \
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( echo "following symbols must have non local/private scope:" >&2; \
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echo "$$bad_syms" >&2; rm -f $@; false )
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$(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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@$(check_for_bad_syms)
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$(obj)/piggy.$(suffix_y): $(obj)/../Image FORCE
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$(call if_changed,$(suffix_y))
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@ -44,7 +44,7 @@ extern void error(char *);
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#include "../../../../lib/decompress_unlzma.c"
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#endif
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void do_decompress(u8 *input, int len, u8 *output, void (*error)(char *x))
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int do_decompress(u8 *input, int len, u8 *output, void (*error)(char *x))
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{
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decompress(input, len, NULL, NULL, output, NULL, error);
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return decompress(input, len, NULL, NULL, output, NULL, error);
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}
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@ -179,16 +179,29 @@ not_angel:
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bl cache_on
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restart: adr r0, LC0
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ldmia r0, {r1, r2, r3, r5, r6, r9, r11, r12}
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ldr sp, [r0, #32]
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ldmia r0, {r1, r2, r3, r6, r10, r11, r12}
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ldr sp, [r0, #28]
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/*
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* We might be running at a different address. We need
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* to fix up various pointers.
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*/
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sub r0, r0, r1 @ calculate the delta offset
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add r5, r5, r0 @ _start
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add r6, r6, r0 @ _edata
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add r10, r10, r0 @ inflated kernel size location
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/*
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* The kernel build system appends the size of the
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* decompressed kernel at the end of the compressed data
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* in little-endian form.
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*/
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ldrb r9, [r10, #0]
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ldrb lr, [r10, #1]
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orr r9, r9, lr, lsl #8
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ldrb lr, [r10, #2]
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ldrb r10, [r10, #3]
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orr r9, r9, lr, lsl #16
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orr r9, r9, r10, lsl #24
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#ifndef CONFIG_ZBOOT_ROM
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/* malloc space is above the relocated stack (64k max) */
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@ -206,31 +219,40 @@ restart: adr r0, LC0
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/*
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* Check to see if we will overwrite ourselves.
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* r4 = final kernel address
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* r5 = start of this image
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* r9 = size of decompressed image
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* r10 = end of this image, including bss/stack/malloc space if non XIP
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* We basically want:
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* r4 >= r10 -> OK
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* r4 + image length <= r5 -> OK
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* r4 - 16k page directory >= r10 -> OK
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* r4 + image length <= current position (pc) -> OK
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*/
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add r10, r10, #16384
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cmp r4, r10
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bhs wont_overwrite
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add r10, r4, r9
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cmp r10, r5
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ARM( cmp r10, pc )
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THUMB( mov lr, pc )
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THUMB( cmp r10, lr )
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bls wont_overwrite
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/*
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* Relocate ourselves past the end of the decompressed kernel.
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* r5 = start of this image
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* r6 = _edata
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* r10 = end of the decompressed kernel
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* Because we always copy ahead, we need to do it from the end and go
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* backward in case the source and destination overlap.
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*/
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/* Round up to next 256-byte boundary. */
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add r10, r10, #256
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/*
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* Bump to the next 256-byte boundary with the size of
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* the relocation code added. This avoids overwriting
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* ourself when the offset is small.
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*/
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add r10, r10, #((reloc_code_end - restart + 256) & ~255)
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bic r10, r10, #255
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/* Get start of code we want to copy and align it down. */
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adr r5, restart
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bic r5, r5, #31
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sub r9, r6, r5 @ size to copy
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add r9, r9, #31 @ rounded up to a multiple
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bic r9, r9, #31 @ ... of 32 bytes
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@ -245,6 +267,11 @@ restart: adr r0, LC0
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/* Preserve offset to relocated code. */
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sub r6, r9, r6
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#ifndef CONFIG_ZBOOT_ROM
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/* cache_clean_flush may use the stack, so relocate it */
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add sp, sp, r6
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#endif
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bl cache_clean_flush
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adr r0, BSYM(restart)
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@ -333,12 +360,11 @@ not_relocated: mov r0, #0
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LC0: .word LC0 @ r1
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.word __bss_start @ r2
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.word _end @ r3
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.word _start @ r5
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.word _edata @ r6
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.word _image_size @ r9
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.word input_data_end - 4 @ r10 (inflated size location)
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.word _got_start @ r11
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.word _got_end @ ip
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.word user_stack_end @ sp
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.word .L_user_stack_end @ sp
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.size LC0, . - LC0
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#ifdef CONFIG_ARCH_RPC
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||||
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@ -1056,8 +1082,9 @@ memdump: mov r12, r0
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|||
#endif
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||||
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||||
.ltorg
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reloc_code_end:
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||||
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.align
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||||
.section ".stack", "aw", %nobits
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user_stack: .space 4096
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user_stack_end:
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.L_user_stack: .space 4096
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.L_user_stack_end:
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@ -26,8 +26,6 @@ unsigned int __machine_arch_type;
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#include <linux/linkage.h>
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#include <asm/string.h>
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||||
#include <asm/unaligned.h>
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||||
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||||
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static void putstr(const char *ptr);
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||||
extern void error(char *x);
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||||
|
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@ -139,13 +137,12 @@ void *memcpy(void *__dest, __const void *__src, size_t __n)
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|||
}
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||||
|
||||
/*
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* gzip delarations
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||||
* gzip declarations
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||||
*/
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extern char input_data[];
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extern char input_data_end[];
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unsigned char *output_data;
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unsigned long output_ptr;
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unsigned long free_mem_ptr;
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unsigned long free_mem_end_ptr;
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|
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@ -170,15 +167,15 @@ asmlinkage void __div0(void)
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error("Attempting division by 0!");
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}
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extern void do_decompress(u8 *input, int len, u8 *output, void (*error)(char *x));
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extern int do_decompress(u8 *input, int len, u8 *output, void (*error)(char *x));
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unsigned long
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void
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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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unsigned char *tmp;
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int ret;
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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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@ -187,12 +184,11 @@ decompress_kernel(unsigned long output_start, unsigned long free_mem_ptr_p,
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arch_decomp_setup();
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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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putstr("Uncompressing Linux...");
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do_decompress(input_data, input_data_end - input_data,
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output_data, error);
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putstr(" done, booting the kernel.\n");
|
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return output_ptr;
|
||||
ret = do_decompress(input_data, input_data_end - input_data,
|
||||
output_data, error);
|
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if (ret)
|
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error("decompressor returned an error");
|
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else
|
||||
putstr(" done, booting the kernel.\n");
|
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}
|
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|
|
|
|||
|
|
@ -54,6 +54,7 @@ SECTIONS
|
|||
.bss : { *(.bss) }
|
||||
_end = .;
|
||||
|
||||
. = ALIGN(8); /* the stack must be 64-bit aligned */
|
||||
.stack : { *(.stack) }
|
||||
|
||||
.stab 0 : { *(.stab) }
|
||||
|
|
|
|||
|
|
@ -25,8 +25,7 @@
|
|||
|
||||
#include <mach/serial.h>
|
||||
|
||||
static u32 *uart;
|
||||
static u32 *uart_info = (u32 *)(DAVINCI_UART_INFO);
|
||||
u32 *uart;
|
||||
|
||||
/* PORT_16C550A, in polled non-fifo mode */
|
||||
static void putc(char c)
|
||||
|
|
@ -44,6 +43,8 @@ static inline void flush(void)
|
|||
|
||||
static inline void set_uart_info(u32 phys, void * __iomem virt)
|
||||
{
|
||||
u32 *uart_info = (u32 *)(DAVINCI_UART_INFO);
|
||||
|
||||
uart = (u32 *)phys;
|
||||
uart_info[0] = phys;
|
||||
uart_info[1] = (u32)virt;
|
||||
|
|
|
|||
|
|
@ -16,7 +16,7 @@
|
|||
#include <linux/serial_reg.h>
|
||||
#include <mach/hardware.h>
|
||||
|
||||
static volatile unsigned long *UART = (unsigned long *)GEMINI_UART_BASE;
|
||||
static volatile unsigned long * const UART = (unsigned long *)GEMINI_UART_BASE;
|
||||
|
||||
/*
|
||||
* The following code assumes the serial port has already been
|
||||
|
|
|
|||
|
|
@ -7,7 +7,7 @@
|
|||
#include <linux/serial_reg.h>
|
||||
#include <mach/hardware.h>
|
||||
|
||||
static volatile u8 *uart_base;
|
||||
volatile u8 *uart_base;
|
||||
|
||||
#define TX_DONE (UART_LSR_TEMT | UART_LSR_THRE)
|
||||
|
||||
|
|
|
|||
|
|
@ -7,7 +7,7 @@
|
|||
#include <linux/serial_reg.h>
|
||||
#include <mach/hardware.h>
|
||||
|
||||
static volatile u32 *uart_base;
|
||||
volatile u32 *uart_base;
|
||||
|
||||
#define TX_DONE (UART_LSR_TEMT | UART_LSR_THRE)
|
||||
|
||||
|
|
|
|||
|
|
@ -19,7 +19,7 @@
|
|||
|
||||
#define TX_DONE (UART_LSR_TEMT|UART_LSR_THRE)
|
||||
|
||||
static volatile u32* uart_base;
|
||||
volatile u32* uart_base;
|
||||
|
||||
static inline void putc(int c)
|
||||
{
|
||||
|
|
|
|||
|
|
@ -14,7 +14,7 @@
|
|||
#define UART2_BASE (APB_PHYS_BASE + 0x17000)
|
||||
#define UART3_BASE (APB_PHYS_BASE + 0x18000)
|
||||
|
||||
static volatile unsigned long *UART;
|
||||
volatile unsigned long *UART;
|
||||
|
||||
static inline void putc(char c)
|
||||
{
|
||||
|
|
|
|||
|
|
@ -20,7 +20,7 @@
|
|||
|
||||
#include <asm/mach-types.h>
|
||||
|
||||
static unsigned long mxs_duart_base;
|
||||
unsigned long mxs_duart_base;
|
||||
|
||||
#define MXS_DUART(x) (*(volatile unsigned long *)(mxs_duart_base + (x)))
|
||||
|
||||
|
|
|
|||
|
|
@ -20,7 +20,7 @@ static void putc_dummy(char c, void __iomem *base)
|
|||
/* nothing */
|
||||
}
|
||||
|
||||
static int timeout;
|
||||
int timeout;
|
||||
|
||||
static void putc_ns9360(char c, void __iomem *base)
|
||||
{
|
||||
|
|
|
|||
|
|
@ -27,7 +27,7 @@
|
|||
#define arch_decomp_wdog()
|
||||
|
||||
#define TX_DONE (UART_LSR_TEMT | UART_LSR_THRE)
|
||||
static u32 * uart_base = (u32 *)UART0_PA;
|
||||
static u32 * const uart_base = (u32 *)UART0_PA;
|
||||
|
||||
static void putc(int ch)
|
||||
{
|
||||
|
|
|
|||
|
|
@ -16,9 +16,9 @@
|
|||
#define BTUART_BASE (0x40200000)
|
||||
#define STUART_BASE (0x40700000)
|
||||
|
||||
static unsigned long uart_base;
|
||||
static unsigned int uart_shift;
|
||||
static unsigned int uart_is_pxa;
|
||||
unsigned long uart_base;
|
||||
unsigned int uart_shift;
|
||||
unsigned int uart_is_pxa;
|
||||
|
||||
static inline unsigned char uart_read(int offset)
|
||||
{
|
||||
|
|
|
|||
|
|
@ -66,12 +66,12 @@ extern __attribute__((pure)) struct param_struct *params(void);
|
|||
#define params (params())
|
||||
|
||||
#ifndef STANDALONE_DEBUG
|
||||
static unsigned long video_num_cols;
|
||||
static unsigned long video_num_rows;
|
||||
static unsigned long video_x;
|
||||
static unsigned long video_y;
|
||||
static unsigned char bytes_per_char_v;
|
||||
static int white;
|
||||
unsigned long video_num_cols;
|
||||
unsigned long video_num_rows;
|
||||
unsigned long video_x;
|
||||
unsigned long video_y;
|
||||
unsigned char bytes_per_char_v;
|
||||
int white;
|
||||
|
||||
/*
|
||||
* This does not append a newline
|
||||
|
|
|
|||
|
|
@ -24,8 +24,8 @@ typedef unsigned int upf_t; /* cannot include linux/serial_core.h */
|
|||
|
||||
/* uart setup */
|
||||
|
||||
static unsigned int fifo_mask;
|
||||
static unsigned int fifo_max;
|
||||
unsigned int fifo_mask;
|
||||
unsigned int fifo_max;
|
||||
|
||||
/* forward declerations */
|
||||
|
||||
|
|
@ -43,7 +43,7 @@ static void arch_detect_cpu(void);
|
|||
/* how many bytes we allow into the FIFO at a time in FIFO mode */
|
||||
#define FIFO_MAX (14)
|
||||
|
||||
static unsigned long uart_base;
|
||||
unsigned long uart_base;
|
||||
|
||||
static __inline__ void get_uart_base(void)
|
||||
{
|
||||
|
|
|
|||
|
|
@ -24,7 +24,7 @@
|
|||
#include <linux/amba/serial.h>
|
||||
#include <mach/hardware.h>
|
||||
|
||||
static u32 ux500_uart_base;
|
||||
u32 ux500_uart_base;
|
||||
|
||||
static void putc(const char c)
|
||||
{
|
||||
|
|
|
|||
|
|
@ -27,7 +27,7 @@
|
|||
#define arch_decomp_wdog()
|
||||
|
||||
#define TX_DONE (UART_LSR_TEMT | UART_LSR_THRE)
|
||||
static volatile u32 * uart_base = (u32 *)UART0_PA;
|
||||
static volatile u32 * const uart_base = (u32 *)UART0_PA;
|
||||
|
||||
static void putc(int ch)
|
||||
{
|
||||
|
|
|
|||
|
|
@ -21,7 +21,7 @@
|
|||
|
||||
#include <asm/mach-types.h>
|
||||
|
||||
static unsigned long uart_base;
|
||||
unsigned long uart_base;
|
||||
|
||||
#define UART(x) (*(volatile unsigned long *)(uart_base + (x)))
|
||||
|
||||
|
|
|
|||
|
|
@ -27,8 +27,8 @@
|
|||
|
||||
#define MDR1_MODE_MASK 0x07
|
||||
|
||||
static volatile u8 *uart_base;
|
||||
static int uart_shift;
|
||||
volatile u8 *uart_base;
|
||||
int uart_shift;
|
||||
|
||||
/*
|
||||
* Store the DEBUG_LL uart number into memory.
|
||||
|
|
|
|||
|
|
@ -18,8 +18,8 @@ typedef unsigned int upf_t; /* cannot include linux/serial_core.h */
|
|||
|
||||
/* uart setup */
|
||||
|
||||
static unsigned int fifo_mask;
|
||||
static unsigned int fifo_max;
|
||||
unsigned int fifo_mask;
|
||||
unsigned int fifo_max;
|
||||
|
||||
/* forward declerations */
|
||||
|
||||
|
|
|
|||
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