diff options
Diffstat (limited to 'arch/mips/boot/compressed')
| -rw-r--r-- | arch/mips/boot/compressed/Makefile | 95 | ||||
| -rw-r--r-- | arch/mips/boot/compressed/calc_vmlinuz_load_addr.c | 57 | ||||
| -rw-r--r-- | arch/mips/boot/compressed/dbg.c | 1 | ||||
| -rw-r--r-- | arch/mips/boot/compressed/decompress.c | 69 | ||||
| -rw-r--r-- | arch/mips/boot/compressed/head.S | 4 | ||||
| -rw-r--r-- | arch/mips/boot/compressed/ld.script | 54 | ||||
| -rw-r--r-- | arch/mips/boot/compressed/string.c | 28 | ||||
| -rw-r--r-- | arch/mips/boot/compressed/uart-16550.c | 28 | ||||
| -rw-r--r-- | arch/mips/boot/compressed/uart-alchemy.c | 3 |
9 files changed, 211 insertions, 128 deletions
diff --git a/arch/mips/boot/compressed/Makefile b/arch/mips/boot/compressed/Makefile index 790ddd39762..61af6b6ab13 100644 --- a/arch/mips/boot/compressed/Makefile +++ b/arch/mips/boot/compressed/Makefile @@ -12,70 +12,86 @@ # Author: Wu Zhangjin <wuzhangjin@gmail.com> # -# compressed kernel load addr: VMLINUZ_LOAD_ADDRESS > VMLINUX_LOAD_ADDRESS + VMLINUX_SIZE -VMLINUX_SIZE := $(shell wc -c $(objtree)/$(KBUILD_IMAGE) 2>/dev/null | cut -d' ' -f1) -VMLINUX_SIZE := $(shell [ -n "$(VMLINUX_SIZE)" ] && echo -n $$(($(VMLINUX_SIZE) + (65536 - $(VMLINUX_SIZE) % 65536)))) -# VMLINUZ_LOAD_ADDRESS = concat "high32 of VMLINUX_LOAD_ADDRESS" and "(low32 of VMLINUX_LOAD_ADDRESS) + VMLINUX_SIZE" -HIGH32 := $(shell A=$(VMLINUX_LOAD_ADDRESS); [ $${\#A} -gt 10 ] && expr substr "$(VMLINUX_LOAD_ADDRESS)" 3 $$(($${\#A} - 10))) -LOW32 := $(shell [ -n "$(HIGH32)" ] && A=11 || A=3; expr substr "$(VMLINUX_LOAD_ADDRESS)" $${A} 8) -VMLINUZ_LOAD_ADDRESS := 0x$(shell [ -n "$(VMLINUX_SIZE)" -a -n "$(LOW32)" ] && printf "$(HIGH32)%08x" $$(($(VMLINUX_SIZE) + 0x$(LOW32)))) - # set the default size of the mallocing area for decompressing BOOT_HEAP_SIZE := 0x400000 # Disable Function Tracer KBUILD_CFLAGS := $(shell echo $(KBUILD_CFLAGS) | sed -e "s/-pg//") +KBUILD_CFLAGS := $(filter-out -fstack-protector, $(KBUILD_CFLAGS)) + KBUILD_CFLAGS := $(LINUXINCLUDE) $(KBUILD_CFLAGS) -D__KERNEL__ \ -DBOOT_HEAP_SIZE=$(BOOT_HEAP_SIZE) -D"VMLINUX_LOAD_ADDRESS_ULL=$(VMLINUX_LOAD_ADDRESS)ull" KBUILD_AFLAGS := $(LINUXINCLUDE) $(KBUILD_AFLAGS) -D__ASSEMBLY__ \ -DBOOT_HEAP_SIZE=$(BOOT_HEAP_SIZE) \ - -DKERNEL_ENTRY=0x$(shell $(NM) $(objtree)/$(KBUILD_IMAGE) 2>/dev/null | grep " kernel_entry" | cut -f1 -d \ ) + -DKERNEL_ENTRY=$(VMLINUX_ENTRY_ADDRESS) -obj-y := $(obj)/head.o $(obj)/decompress.o $(obj)/dbg.o +targets := head.o decompress.o string.o dbg.o uart-16550.o uart-alchemy.o + +# decompressor objects (linked with vmlinuz) +vmlinuzobjs-y := $(obj)/head.o $(obj)/decompress.o $(obj)/string.o $(obj)/dbg.o ifdef CONFIG_DEBUG_ZBOOT -obj-$(CONFIG_SYS_SUPPORTS_ZBOOT_UART16550) += $(obj)/uart-16550.o -obj-$(CONFIG_MACH_ALCHEMY) += $(obj)/uart-alchemy.o +vmlinuzobjs-$(CONFIG_SYS_SUPPORTS_ZBOOT_UART16550) += $(obj)/uart-16550.o +vmlinuzobjs-$(CONFIG_MIPS_ALCHEMY) += $(obj)/uart-alchemy.o +endif + +ifdef CONFIG_KERNEL_XZ +vmlinuzobjs-y += $(obj)/../../lib/ashldi3.o endif +targets += vmlinux.bin OBJCOPYFLAGS_vmlinux.bin := $(OBJCOPYFLAGS) -O binary -R .comment -S -$(obj)/vmlinux.bin: $(KBUILD_IMAGE) +$(obj)/vmlinux.bin: $(KBUILD_IMAGE) FORCE $(call if_changed,objcopy) -suffix_$(CONFIG_KERNEL_GZIP) = gz -suffix_$(CONFIG_KERNEL_BZIP2) = bz2 -suffix_$(CONFIG_KERNEL_LZMA) = lzma -suffix_$(CONFIG_KERNEL_LZO) = lzo tool_$(CONFIG_KERNEL_GZIP) = gzip tool_$(CONFIG_KERNEL_BZIP2) = bzip2 +tool_$(CONFIG_KERNEL_LZ4) = lz4 tool_$(CONFIG_KERNEL_LZMA) = lzma tool_$(CONFIG_KERNEL_LZO) = lzo -$(obj)/vmlinux.$(suffix_y): $(obj)/vmlinux.bin +tool_$(CONFIG_KERNEL_XZ) = xzkern + +targets += vmlinux.bin.z +$(obj)/vmlinux.bin.z: $(obj)/vmlinux.bin FORCE $(call if_changed,$(tool_y)) -$(obj)/piggy.o: $(obj)/vmlinux.$(suffix_y) $(obj)/dummy.o - $(Q)$(OBJCOPY) $(OBJCOPYFLAGS) \ - --add-section=.image=$< \ - --set-section-flags=.image=contents,alloc,load,readonly,data \ - $(obj)/dummy.o $@ +targets += piggy.o +OBJCOPYFLAGS_piggy.o := --add-section=.image=$(obj)/vmlinux.bin.z \ + --set-section-flags=.image=contents,alloc,load,readonly,data +$(obj)/piggy.o: $(obj)/dummy.o $(obj)/vmlinux.bin.z FORCE + $(call if_changed,objcopy) + +# Calculate the load address of the compressed kernel image +hostprogs-y := calc_vmlinuz_load_addr -LDFLAGS_vmlinuz := $(LDFLAGS) -Ttext $(VMLINUZ_LOAD_ADDRESS) -T -vmlinuz: $(src)/ld.script $(obj-y) $(obj)/piggy.o - $(call if_changed,ld) - $(Q)$(OBJCOPY) $(OBJCOPYFLAGS) $@ +ifeq ($(CONFIG_MACH_JZ4740),y) +VMLINUZ_LOAD_ADDRESS := 0x80600000 +else +VMLINUZ_LOAD_ADDRESS = $(shell $(obj)/calc_vmlinuz_load_addr \ + $(obj)/vmlinux.bin $(VMLINUX_LOAD_ADDRESS)) +endif + +vmlinuzobjs-y += $(obj)/piggy.o + +quiet_cmd_zld = LD $@ + cmd_zld = $(LD) $(LDFLAGS) -Ttext $(VMLINUZ_LOAD_ADDRESS) -T $< $(vmlinuzobjs-y) -o $@ +quiet_cmd_strip = STRIP $@ + cmd_strip = $(STRIP) -s $@ +vmlinuz: $(src)/ld.script $(vmlinuzobjs-y) $(obj)/calc_vmlinuz_load_addr + $(call cmd,zld) + $(call cmd,strip) # # Some DECstations need all possible sections of an ECOFF executable # ifdef CONFIG_MACH_DECSTATION - E2EFLAGS = -a -else - E2EFLAGS = + e2eflag := -a endif # elf2ecoff can only handle 32bit image +hostprogs-y += ../elf2ecoff ifdef CONFIG_32BIT VMLINUZ = vmlinuz @@ -83,23 +99,22 @@ else VMLINUZ = vmlinuz.32 endif +quiet_cmd_32 = OBJCOPY $@ + cmd_32 = $(OBJCOPY) -O $(32bit-bfd) $(OBJCOPYFLAGS) $< $@ vmlinuz.32: vmlinuz - $(Q)$(OBJCOPY) -O $(32bit-bfd) $(OBJCOPYFLAGS) $< $@ + $(call cmd,32) +quiet_cmd_ecoff = ECOFF $@ + cmd_ecoff = $< $(VMLINUZ) $@ $(e2eflag) vmlinuz.ecoff: $(obj)/../elf2ecoff $(VMLINUZ) - $(Q)$(obj)/../elf2ecoff $(VMLINUZ) vmlinuz.ecoff $(E2EFLAGS) - -$(obj)/../elf2ecoff: $(src)/../elf2ecoff.c - $(Q)$(HOSTCC) -o $@ $^ + $(call cmd,ecoff) OBJCOPYFLAGS_vmlinuz.bin := $(OBJCOPYFLAGS) -O binary vmlinuz.bin: vmlinuz - $(call if_changed,objcopy) + $(call cmd,objcopy) OBJCOPYFLAGS_vmlinuz.srec := $(OBJCOPYFLAGS) -S -O srec vmlinuz.srec: vmlinuz - $(call if_changed,objcopy) + $(call cmd,objcopy) -clean: -clean-files += *.o \ - vmlinu* +clean-files := $(objtree)/vmlinuz $(objtree)/vmlinuz.{32,ecoff,bin,srec} diff --git a/arch/mips/boot/compressed/calc_vmlinuz_load_addr.c b/arch/mips/boot/compressed/calc_vmlinuz_load_addr.c new file mode 100644 index 00000000000..37fe58c19a9 --- /dev/null +++ b/arch/mips/boot/compressed/calc_vmlinuz_load_addr.c @@ -0,0 +1,57 @@ +/* + * Copyright (C) 2010 "Wu Zhangjin" <wuzhangjin@gmail.com> + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. + */ + +#include <sys/types.h> +#include <sys/stat.h> +#include <errno.h> +#include <stdint.h> +#include <stdio.h> +#include <stdlib.h> + +int main(int argc, char *argv[]) +{ + unsigned long long vmlinux_size, vmlinux_load_addr, vmlinuz_load_addr; + struct stat sb; + + if (argc != 3) { + fprintf(stderr, "Usage: %s <pathname> <vmlinux_load_addr>\n", + argv[0]); + return EXIT_FAILURE; + } + + if (stat(argv[1], &sb) == -1) { + perror("stat"); + return EXIT_FAILURE; + } + + /* Convert hex characters to dec number */ + errno = 0; + if (sscanf(argv[2], "%llx", &vmlinux_load_addr) != 1) { + if (errno != 0) + perror("sscanf"); + else + fprintf(stderr, "No matching characters\n"); + + return EXIT_FAILURE; + } + + vmlinux_size = (uint64_t)sb.st_size; + vmlinuz_load_addr = vmlinux_load_addr + vmlinux_size; + + /* + * Align with 16 bytes: "greater than that used for any standard data + * types by a MIPS compiler." -- See MIPS Run Linux (Second Edition). + */ + + vmlinuz_load_addr += (16 - vmlinux_size % 16); + + printf("0x%llx\n", vmlinuz_load_addr); + + return EXIT_SUCCESS; +} diff --git a/arch/mips/boot/compressed/dbg.c b/arch/mips/boot/compressed/dbg.c index 134a6162e39..06c6a5bd175 100644 --- a/arch/mips/boot/compressed/dbg.c +++ b/arch/mips/boot/compressed/dbg.c @@ -6,7 +6,6 @@ * need to implement your own putc(). */ #include <linux/compiler.h> -#include <linux/init.h> #include <linux/types.h> void __weak putc(char c) diff --git a/arch/mips/boot/compressed/decompress.c b/arch/mips/boot/compressed/decompress.c index 5db43c58b1b..c00c4ddf451 100644 --- a/arch/mips/boot/compressed/decompress.c +++ b/arch/mips/boot/compressed/decompress.c @@ -1,15 +1,12 @@ /* - * Misc. bootloader code for many machines. - * * Copyright 2001 MontaVista Software Inc. - * Author: Matt Porter <mporter@mvista.com> Derived from - * arch/ppc/boot/prep/misc.c + * Author: Matt Porter <mporter@mvista.com> * * Copyright (C) 2009 Lemote, Inc. * Author: Wu Zhangjin <wuzhangjin@gmail.com> * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License as published by the + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the * Free Software Foundation; either version 2 of the License, or (at your * option) any later version. */ @@ -19,12 +16,12 @@ #include <asm/addrspace.h> -/* These two variables specify the free mem region +/* + * These two variables specify the free mem region * that can be used for temporary malloc area */ unsigned long free_mem_ptr; unsigned long free_mem_end_ptr; -char *zimage_start; /* The linker tells us where the image is. */ extern unsigned char __image_begin, __image_end; @@ -47,32 +44,17 @@ void error(char *x) #define STATIC static #ifdef CONFIG_KERNEL_GZIP -void *memcpy(void *dest, const void *src, size_t n) -{ - int i; - const char *s = src; - char *d = dest; - - for (i = 0; i < n; i++) - d[i] = s[i]; - return dest; -} #include "../../../../lib/decompress_inflate.c" #endif #ifdef CONFIG_KERNEL_BZIP2 -void *memset(void *s, int c, size_t n) -{ - int i; - char *ss = s; - - for (i = 0; i < n; i++) - ss[i] = c; - return s; -} #include "../../../../lib/decompress_bunzip2.c" #endif +#ifdef CONFIG_KERNEL_LZ4 +#include "../../../../lib/decompress_unlz4.c" +#endif + #ifdef CONFIG_KERNEL_LZMA #include "../../../../lib/decompress_unlzma.c" #endif @@ -81,40 +63,37 @@ void *memset(void *s, int c, size_t n) #include "../../../../lib/decompress_unlzo.c" #endif +#ifdef CONFIG_KERNEL_XZ +#include "../../../../lib/decompress_unxz.c" +#endif + void decompress_kernel(unsigned long boot_heap_start) { - int zimage_size; - - /* - * We link ourself to an arbitrary low address. When we run, we - * relocate outself to that address. __image_beign points to - * the part of the image where the zImage is. -- Tom - */ - zimage_start = (char *)(unsigned long)(&__image_begin); + unsigned long zimage_start, zimage_size; + + zimage_start = (unsigned long)(&__image_begin); zimage_size = (unsigned long)(&__image_end) - (unsigned long)(&__image_begin); - /* - * The zImage and initrd will be between start and _end, so they've - * already been moved once. We're good to go now. -- Tom - */ puts("zimage at: "); - puthex((unsigned long)zimage_start); + puthex(zimage_start); puts(" "); - puthex((unsigned long)(zimage_size + zimage_start)); + puthex(zimage_size + zimage_start); puts("\n"); - /* this area are prepared for mallocing when decompressing */ + /* This area are prepared for mallocing when decompressing */ free_mem_ptr = boot_heap_start; free_mem_end_ptr = boot_heap_start + BOOT_HEAP_SIZE; - /* Display standard Linux/MIPS boot prompt for kernel args */ + /* Display standard Linux/MIPS boot prompt */ puts("Uncompressing Linux at load address "); puthex(VMLINUX_LOAD_ADDRESS_ULL); puts("\n"); + /* Decompress the kernel with according algorithm */ - decompress(zimage_start, zimage_size, 0, 0, + decompress((char *)zimage_start, zimage_size, 0, 0, (void *)VMLINUX_LOAD_ADDRESS_ULL, 0, error); - /* FIXME: is there a need to flush cache here? */ + + /* FIXME: should we flush cache here? */ puts("Now, booting the kernel...\n"); } diff --git a/arch/mips/boot/compressed/head.S b/arch/mips/boot/compressed/head.S index 4e65a8420be..409cb483a9f 100644 --- a/arch/mips/boot/compressed/head.S +++ b/arch/mips/boot/compressed/head.S @@ -32,8 +32,8 @@ start: bne a2, a0, 1b addiu a0, a0, 4 - PTR_LA a0, (.heap) /* heap address */ - PTR_LA sp, (.stack + 8192) /* stack address */ + PTR_LA a0, (.heap) /* heap address */ + PTR_LA sp, (.stack + 8192) /* stack address */ PTR_LA ra, 2f PTR_LA k0, decompress_kernel diff --git a/arch/mips/boot/compressed/ld.script b/arch/mips/boot/compressed/ld.script index 613a35b02f5..5a33409c7f6 100644 --- a/arch/mips/boot/compressed/ld.script +++ b/arch/mips/boot/compressed/ld.script @@ -2,61 +2,47 @@ * ld.script for compressed kernel support of MIPS * * Copyright (C) 2009 Lemote Inc. - * Author: Wu Zhangjin <wuzj@lemote.com> + * Author: Wu Zhangjin <wuzhanjing@gmail.com> + * Copyright (C) 2010 "Wu Zhangjin" <wuzhanjing@gmail.com> */ OUTPUT_ARCH(mips) ENTRY(start) +PHDRS { + text PT_LOAD FLAGS(7); /* RWX */ +} SECTIONS { - /* . = VMLINUZ_LOAD_ADDRESS */ - /* read-only */ - _text = .; /* Text and read-only data */ - .text : { - _ftext = . ; + /* Text and read-only data */ + /* . = VMLINUZ_LOAD_ADDRESS; */ + .text : { *(.text) *(.rodata) - } = 0 - _etext = .; /* End of text section */ + }: text + /* End of text section */ - /* writable */ - .data : { /* Data */ - _fdata = . ; + /* Writable data */ + .data : { *(.data) - /* Put the compressed image here, so bss is on the end. */ + /* Put the compressed image here */ __image_begin = .; *(.image) __image_end = .; CONSTRUCTORS } - .sdata : { *(.sdata) } - . = ALIGN(4); - _edata = .; /* End of data section */ + . = ALIGN(16); + _edata = .; + /* End of data section */ /* BSS */ - __bss_start = .; - _fbss = .; - .sbss : { *(.sbss) *(.scommon) } - .bss : { - *(.dynbss) + .bss : { *(.bss) - *(COMMON) } - . = ALIGN(4); - _end = . ; - - /* These are needed for ELF backends which have not yet been converted - * to the new style linker. */ - - .stab 0 : { *(.stab) } - .stabstr 0 : { *(.stabstr) } - - /* These must appear regardless of . */ - .gptab.sdata : { *(.gptab.data) *(.gptab.sdata) } - .gptab.sbss : { *(.gptab.bss) *(.gptab.sbss) } + . = ALIGN(16); + _end = .; /* Sections to be discarded */ - /DISCARD/ : { + /DISCARD/ : { *(.MIPS.options) *(.options) *(.pdr) diff --git a/arch/mips/boot/compressed/string.c b/arch/mips/boot/compressed/string.c new file mode 100644 index 00000000000..9de9885acd0 --- /dev/null +++ b/arch/mips/boot/compressed/string.c @@ -0,0 +1,28 @@ +/* + * arch/mips/boot/compressed/string.c + * + * Very small subset of simple string routines + */ + +#include <linux/types.h> + +void *memcpy(void *dest, const void *src, size_t n) +{ + int i; + const char *s = src; + char *d = dest; + + for (i = 0; i < n; i++) + d[i] = s[i]; + return dest; +} + +void *memset(void *s, int c, size_t n) +{ + int i; + char *ss = s; + + for (i = 0; i < n; i++) + ss[i] = c; + return s; +} diff --git a/arch/mips/boot/compressed/uart-16550.c b/arch/mips/boot/compressed/uart-16550.c index c9caaf4fbf6..237494b7a21 100644 --- a/arch/mips/boot/compressed/uart-16550.c +++ b/arch/mips/boot/compressed/uart-16550.c @@ -4,7 +4,6 @@ #include <linux/types.h> #include <linux/serial_reg.h> -#include <linux/init.h> #include <asm/addrspace.h> @@ -18,23 +17,44 @@ #define PORT(offset) (CKSEG1ADDR(AR7_REGS_UART0) + (4 * offset)) #endif +#ifdef CONFIG_MACH_JZ4740 +#include <asm/mach-jz4740/base.h> +#define PORT(offset) (CKSEG1ADDR(JZ4740_UART0_BASE_ADDR) + (4 * offset)) +#endif + +#ifdef CONFIG_CPU_XLR +#define UART0_BASE 0x1EF14000 +#define PORT(offset) (CKSEG1ADDR(UART0_BASE) + (4 * offset)) +#define IOTYPE unsigned int +#endif + +#ifdef CONFIG_CPU_XLP +#define UART0_BASE 0x18030100 +#define PORT(offset) (CKSEG1ADDR(UART0_BASE) + (4 * offset)) +#define IOTYPE unsigned int +#endif + +#ifndef IOTYPE +#define IOTYPE char +#endif + #ifndef PORT #error please define the serial port address for your own machine #endif static inline unsigned int serial_in(int offset) { - return *((char *)PORT(offset)); + return *((volatile IOTYPE *)PORT(offset)) & 0xFF; } static inline void serial_out(int offset, int value) { - *((char *)PORT(offset)) = value; + *((volatile IOTYPE *)PORT(offset)) = value & 0xFF; } void putc(char c) { - int timeout = 1024; + int timeout = 1000000; while (((serial_in(UART_LSR) & UART_LSR_THRE) == 0) && (timeout-- > 0)) ; diff --git a/arch/mips/boot/compressed/uart-alchemy.c b/arch/mips/boot/compressed/uart-alchemy.c index 1bff22fa089..4bee55b93f6 100644 --- a/arch/mips/boot/compressed/uart-alchemy.c +++ b/arch/mips/boot/compressed/uart-alchemy.c @@ -2,6 +2,5 @@ void putc(char c) { - /* all current (Jan. 2010) in-kernel boards */ - alchemy_uart_putchar(UART0_PHYS_ADDR, c); + alchemy_uart_putchar(AU1000_UART0_PHYS_ADDR, c); } |