5 files changed, 72 insertions, 158 deletions

diff --git a/arch/mips/boot/.gitignore b/arch/mips/boot/.gitignore
index ba63401c6e10..4667a5f9280b 100644
--- a/arch/mips/boot/.gitignore
+++ b/arch/mips/boot/.gitignore
@@ -1,4 +1,5 @@
 mkboot
 elf2ecoff
+vmlinux.*
 zImage
 zImage.tmp
diff --git a/arch/mips/boot/Makefile b/arch/mips/boot/Makefile
index 094bc84765a3..e39a08edcaaa 100644
--- a/arch/mips/boot/Makefile
+++ b/arch/mips/boot/Makefile
@@ -28,7 +28,7 @@ VMLINUX = vmlinux
 all: vmlinux.ecoff vmlinux.srec
 
 vmlinux.ecoff: $(obj)/elf2ecoff $(VMLINUX)
-        $(obj)/elf2ecoff $(VMLINUX) vmlinux.ecoff $(E2EFLAGS)
+        $(obj)/elf2ecoff $(VMLINUX) $(obj)/vmlinux.ecoff $(E2EFLAGS)
 
 $(obj)/elf2ecoff: $(obj)/elf2ecoff.c
         $(HOSTCC) -o $@ $^
diff --git a/arch/mips/boot/compressed/Makefile b/arch/mips/boot/compressed/Makefile
index e27f40bbd4e5..9df903d714d7 100644
--- a/arch/mips/boot/compressed/Makefile
+++ b/arch/mips/boot/compressed/Makefile
@@ -14,8 +14,11 @@
 
 # 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 $$(($(VMLINUX_SIZE) + (65536 - $(VMLINUX_SIZE) % 65536))))
-VMLINUZ_LOAD_ADDRESS := 0x$(shell [ -n "$(VMLINUX_SIZE)" ] && printf %x $$(($(VMLINUX_LOAD_ADDRESS) + $(VMLINUX_SIZE))))
+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
@@ -41,9 +44,11 @@ $(obj)/vmlinux.bin: $(KBUILD_IMAGE)
 suffix_$(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_LZMA)    = lzma
+tool_$(CONFIG_KERNEL_LZO)     = lzo
 $(obj)/vmlinux.$(suffix_y): $(obj)/vmlinux.bin
         $(call if_changed,$(tool_y))
 
@@ -56,7 +61,7 @@ $(obj)/piggy.o: $(obj)/vmlinux.$(suffix_y) $(obj)/dummy.o
 LDFLAGS_vmlinuz := $(LDFLAGS) -Ttext $(VMLINUZ_LOAD_ADDRESS) -T
 vmlinuz: $(src)/ld.script $(obj-y) $(obj)/piggy.o
         $(call if_changed,ld)
-        $(Q)$(OBJCOPY) $(OBJCOPYFLAGS) -R .comment -R .stab -R .stabstr -R .initrd -R .sysmap $@
+        $(Q)$(OBJCOPY) $(OBJCOPYFLAGS) $@
 
 #
 # Some DECstations need all possible sections of an ECOFF executable
@@ -84,14 +89,11 @@ vmlinuz.ecoff: $(obj)/../elf2ecoff $(VMLINUZ)
 $(obj)/../elf2ecoff: $(src)/../elf2ecoff.c
         $(Q)$(HOSTCC) -o $@ $^
 
-drop-sections   = .reginfo .mdebug .comment .note .pdr .options .MIPS.options
-strip-flags     = $(addprefix --remove-section=,$(drop-sections))
-
-OBJCOPYFLAGS_vmlinuz.bin := $(OBJCOPYFLAGS) -O binary $(strip-flags)
+OBJCOPYFLAGS_vmlinuz.bin := $(OBJCOPYFLAGS) -O binary
 vmlinuz.bin: vmlinuz
         $(call if_changed,objcopy)
 
-OBJCOPYFLAGS_vmlinuz.srec := $(OBJCOPYFLAGS) -S -O srec $(strip-flags)
+OBJCOPYFLAGS_vmlinuz.srec := $(OBJCOPYFLAGS) -S -O srec
 vmlinuz.srec: vmlinuz
         $(call if_changed,objcopy)
 
diff --git a/arch/mips/boot/compressed/decompress.c b/arch/mips/boot/compressed/decompress.c
index 67330c2f7318..55d02b3a6712 100644
--- a/arch/mips/boot/compressed/decompress.c
+++ b/arch/mips/boot/compressed/decompress.c
@@ -28,8 +28,6 @@ char *zimage_start;
 
 /* The linker tells us where the image is. */
 extern unsigned char __image_begin, __image_end;
-extern unsigned char __ramdisk_begin, __ramdisk_end;
-unsigned long initrd_size;
 
 /* debug interfaces  */
 extern void puts(const char *s);
@@ -79,6 +77,10 @@ void *memset(void *s, int c, size_t n)
 #include "../../../../lib/decompress_unlzma.c"
 #endif
 
+#ifdef CONFIG_KERNEL_LZO
+#include "../../../../lib/decompress_unlzo.c"
+#endif
+
 void decompress_kernel(unsigned long boot_heap_start)
 {
         int zimage_size;
@@ -102,14 +104,6 @@ void decompress_kernel(unsigned long boot_heap_start)
         puthex((unsigned long)(zimage_size + zimage_start));
         puts("\n");
 
-        if (initrd_size) {
-                puts("initrd at:     ");
-                puthex((unsigned long)(&__ramdisk_begin));
-                puts(" ");
-                puthex((unsigned long)(&__ramdisk_end));
-                puts("\n");
-        }
-
         /* this area are prepared for mallocing when decompressing */
         free_mem_ptr = boot_heap_start;
         free_mem_end_ptr = boot_heap_start + BOOT_HEAP_SIZE;
diff --git a/arch/mips/boot/compressed/ld.script b/arch/mips/boot/compressed/ld.script
index 29e9f4c0d5d8..613a35b02f50 100644
--- a/arch/mips/boot/compressed/ld.script
+++ b/arch/mips/boot/compressed/ld.script
@@ -1,150 +1,67 @@
+/*
+ * ld.script for compressed kernel support of MIPS
+ *
+ * Copyright (C) 2009 Lemote Inc.
+ * Author: Wu Zhangjin <wuzj@lemote.com>
+ */
+
 OUTPUT_ARCH(mips)
 ENTRY(start)
 SECTIONS
 {
-  /* Read-only sections, merged into text segment: */
-  .init          : { *(.init)           } =0
-  .text      :
-  {
-    _ftext = . ;
-    *(.text)
-    *(.rodata)
-    *(.rodata1)
-    /* .gnu.warning sections are handled specially by elf32.em.  */
-    *(.gnu.warning)
-  } =0
-  .kstrtab : { *(.kstrtab) }
-
-  . = ALIGN(16);                /* Exception table */
-  __start___ex_table = .;
-  __ex_table : { *(__ex_table) }
-  __stop___ex_table = .;
-
-  __start___dbe_table = .;      /* Exception table for data bus errors */
-  __dbe_table : { *(__dbe_table) }
-  __stop___dbe_table = .;
-
-  __start___ksymtab = .;        /* Kernel symbol table */
-  __ksymtab : { *(__ksymtab) }
-  __stop___ksymtab = .;
-
-  _etext = .;
-
-  . = ALIGN(8192);
-  .data.init_task : { *(.data.init_task) }
-
-  /* Startup code */
-  . = ALIGN(4096);
-  __init_begin = .;
-  .text.init : { *(.text.init) }
-  .data.init : { *(.data.init) }
-  . = ALIGN(16);
-  __setup_start = .;
-  .setup.init : { *(.setup.init) }
-  __setup_end = .;
-  __initcall_start = .;
-  .initcall.init : { *(.initcall.init) }
-  __initcall_end = .;
-  . = ALIGN(4096);      /* Align double page for init_task_union */
-  __init_end = .;
-
-  . = ALIGN(4096);
-  .data.page_aligned : { *(.data.idt) }
-
-  . = ALIGN(32);
-  .data.cacheline_aligned : { *(.data.cacheline_aligned) }
+        /* . = VMLINUZ_LOAD_ADDRESS */
+        /* read-only */
+        _text = .;      /* Text and read-only data */
+        .text   : {
+                _ftext = . ;
+                *(.text)
+                *(.rodata)
+        } = 0
+        _etext = .;     /* End of text section */
 
-  .fini      : { *(.fini)    } =0
-  .reginfo : { *(.reginfo) }
-  /* Adjust the address for the data segment.  We want to adjust up to
-     the same address within the page on the next page up.  It would
-     be more correct to do this:
-       . = .;
-     The current expression does not correctly handle the case of a
-     text segment ending precisely at the end of a page; it causes the
-     data segment to skip a page.  The above expression does not have
-     this problem, but it will currently (2/95) cause BFD to allocate
-     a single segment, combining both text and data, for this case.
-     This will prevent the text segment from being shared among
-     multiple executions of the program; I think that is more
-     important than losing a page of the virtual address space (note
-     that no actual memory is lost; the page which is skipped can not
-     be referenced).  */
-  . = .;
-  .data    :
-  {
-    _fdata = . ;
-    *(.data)
+        /* writable */
+        .data   : {     /* Data */
+                _fdata = . ;
+                *(.data)
+                /* Put the compressed image here, so bss is on the end. */
+                __image_begin = .;
+                *(.image)
+                __image_end = .;
+                CONSTRUCTORS
+        }
+        .sdata  : { *(.sdata) }
+        . = ALIGN(4);
+        _edata  =  .;   /* End of data section */
 
-   /* Put the compressed image here, so bss is on the end. */
-   __image_begin = .;
-   *(.image)
-   __image_end = .;
-   /* Align the initial ramdisk image (INITRD) on page boundaries. */
-   . = ALIGN(4096);
-   __ramdisk_begin = .;
-   *(.initrd)
-   __ramdisk_end = .;
-   . = ALIGN(4096);
+        /* BSS */
+        __bss_start = .;
+        _fbss = .;
+        .sbss   : { *(.sbss) *(.scommon) }
+        .bss    : {
+                *(.dynbss)
+                *(.bss)
+                *(COMMON)
+        }
+        .  = ALIGN(4);
+        _end = . ;
 
-    CONSTRUCTORS
-  }
-  .data1   : { *(.data1) }
-  _gp = . + 0x8000;
-  .lit8 : { *(.lit8) }
-  .lit4 : { *(.lit4) }
-  .ctors         : { *(.ctors)   }
-  .dtors         : { *(.dtors)   }
-  .got           : { *(.got.plt) *(.got) }
-  .dynamic       : { *(.dynamic) }
-  /* We want the small data sections together, so single-instruction offsets
-     can access them all, and initialized data all before uninitialized, so
-     we can shorten the on-disk segment size.  */
-  .sdata     : { *(.sdata) }
-  . = ALIGN(4);
-  _edata  =  .;
-  PROVIDE (edata = .);
+        /* These are needed for ELF backends which have not yet been converted
+         * to the new style linker.  */
 
-  __bss_start = .;
-  _fbss = .;
-  .sbss      : { *(.sbss) *(.scommon) }
-  .bss       :
-  {
-   *(.dynbss)
-   *(.bss)
-   *(COMMON)
-   .  = ALIGN(4);
-  _end = . ;
-  PROVIDE (end = .);
-  }
+        .stab 0 : { *(.stab) }
+        .stabstr 0 : { *(.stabstr) }
 
-  /* Sections to be discarded */
-  /DISCARD/ :
-  {
-        *(.text.exit)
-        *(.data.exit)
-        *(.exitcall.exit)
-  }
+        /* These must appear regardless of  .  */
+        .gptab.sdata : { *(.gptab.data) *(.gptab.sdata) }
+        .gptab.sbss : { *(.gptab.bss) *(.gptab.sbss) }
 
-  /* This is the MIPS specific mdebug section.  */
-  .mdebug : { *(.mdebug) }
-  /* These are needed for ELF backends which have not yet been
-     converted to the new style linker.  */
-  .stab 0 : { *(.stab) }
-  .stabstr 0 : { *(.stabstr) }
-  /* DWARF debug sections.
-     Symbols in the .debug DWARF section are relative to the beginning of the
-     section so we begin .debug at 0.  It's not clear yet what needs to happen
-     for the others.   */
-  .debug          0 : { *(.debug) }
-  .debug_srcinfo  0 : { *(.debug_srcinfo) }
-  .debug_aranges  0 : { *(.debug_aranges) }
-  .debug_pubnames 0 : { *(.debug_pubnames) }
-  .debug_sfnames  0 : { *(.debug_sfnames) }
-  .line           0 : { *(.line) }
-  /* These must appear regardless of  .  */
-  .gptab.sdata : { *(.gptab.data) *(.gptab.sdata) }
-  .gptab.sbss : { *(.gptab.bss) *(.gptab.sbss) }
-  .comment : { *(.comment) }
-  .note : { *(.note) }
+        /* Sections to be discarded */
+        /DISCARD/       : {
+                *(.MIPS.options)
+                *(.options)
+                *(.pdr)
+                *(.reginfo)
+                *(.comment)
+                *(.note)
+        }
 }