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
--- a/arch/microblaze/kernel/vmlinux.lds.S
+++ b/arch/microblaze/kernel/vmlinux.lds.S
@@ -12,15 +12,15 @@
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 @@
}
. = 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 @@
* 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 @@
/* 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 @@
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 @@
__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 @@
}
__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)
