microblaze: Use LOAD_OFFSET macro to get correct LMA for all sections

Currently, vmlinux has LMA==VMA for all sections, which is wrong for MMU
kernels.  Previous patches in this series defined the LOAD_OFFSET constant,
now we make use of it in our link script.

Other minor changes in this patch:
	* brace/indenting cleanup of some sections
	* put __fdt_* symbols in their own section, and apply LOAD_OFFSET fixup

Signed-off-by: John Williams <john.williams@petalogix.com>
Signed-off-by: Michal Simek <monstr@monstr.eu>

diff --git a/arch/microblaze/kernel/vmlinux.lds.S b/arch/microblaze/kernel/vmlinux.lds.S
index b76c17c..dbb98f8 100644 (file)
--- a/arch/microblaze/kernel/vmlinux.lds.S
+++ b/arch/microblaze/kernel/vmlinux.lds.S
@@ -12,15 +12,15 @@ OUTPUT_FORMAT("elf32-microblaze", "elf32-microblaze", "elf32-microblaze")
 OUTPUT_ARCH(microblaze)
 ENTRY(_start)
 
-#include <asm-generic/vmlinux.lds.h>
 #include <asm/page.h>
+#include <asm-generic/vmlinux.lds.h>
 #include <asm/thread_info.h>
 
 jiffies = jiffies_64 + 4;
 
 SECTIONS {
        . = CONFIG_KERNEL_START;
-       .text : {
+       .text : AT(ADDR(.text) - LOAD_OFFSET) {
                _text = . ;
                _stext = . ;
                *(.text .text.*)
@@ -35,9 +35,12 @@ SECTIONS {
        }
 
        . = ALIGN (4) ;
-       _fdt_start = . ; /* place for fdt blob */
-       . = . + 0x4000;
-       _fdt_end = . ;
+       __fdt_blob : AT(ADDR(__fdt_blob) - LOAD_OFFSET) {
+               _fdt_start = . ;                /* place for fdt blob */
+               *(__fdt_blob) ;                 /* Any link-placed DTB */
+               . = _fdt_start + 0x4000;        /* Pad up to 16kbyte */
+               _fdt_end = . ;
+       }
 
        . = ALIGN(16);
        RODATA
@@ -47,7 +50,7 @@ SECTIONS {
         * sdata2 section can go anywhere, but must be word aligned
         * and SDA2_BASE must point to the middle of it
         */
-       .sdata2 : {
+       .sdata2 : AT(ADDR(.sdata2) - LOAD_OFFSET) {
                _ssrw = .;
                . = ALIGN(4096); /* page aligned when MMU used - origin 0x8 */
                *(.sdata2)
@@ -68,12 +71,12 @@ SECTIONS {
 
        /* Under the microblaze ABI, .sdata and .sbss must be contiguous */
        . = ALIGN(8);
-       .sdata : {
+       .sdata : AT(ADDR(.sdata) - LOAD_OFFSET) {
                _ssro = .;
                *(.sdata)
        }
 
-       .sbss : {
+       .sbss : AT(ADDR(.sbss) - LOAD_OFFSET) {
                _ssbss = .;
                *(.sbss)
                _esbss = .;
@@ -86,26 +89,26 @@ SECTIONS {
 
        INIT_TEXT_SECTION(PAGE_SIZE)
 
-       .init.data : {
+       .init.data : AT(ADDR(.init.data) - LOAD_OFFSET) {
                INIT_DATA
        }
 
        . = ALIGN(4);
-       .init.ivt : {
+       .init.ivt : AT(ADDR(.init.ivt) - LOAD_OFFSET) {
                __ivt_start = .;
                *(.init.ivt)
                __ivt_end = .;
        }
 
-       .init.setup : {
+       .init.setup : AT(ADDR(.init.setup) - LOAD_OFFSET) {
                INIT_SETUP(0)
        }
 
-       .initcall.init : {
+       .initcall.init : AT(ADDR(.initcall.init) - LOAD_OFFSET ) {
                INIT_CALLS
        }
 
-       .con_initcall.init : {
+       .con_initcall.init : AT(ADDR(.con_initcall.init) - LOAD_OFFSET) {
                CON_INITCALL
        }
 
@@ -113,7 +116,7 @@ SECTIONS {
 
        __init_end_before_initramfs = .;
 
-       .init.ramfs ALIGN(4096) : {
+       .init.ramfs ALIGN(4096) : AT(ADDR(.init.ramfs) - LOAD_OFFSET) {
                __initramfs_start = .;
                *(.init.ramfs)
                __initramfs_end = .;
@@ -129,7 +132,8 @@ SECTIONS {
        }
        __init_end = .;
 
-       .bss ALIGN (4096) : { /* page aligned when MMU used */
+       .bss ALIGN (4096) : AT(ADDR(.bss) - LOAD_OFFSET) {
+               /* page aligned when MMU used */
                __bss_start = . ;
                        *(.bss*)
                        *(COMMON)