From: monstr@monstr.eu (Michal Simek)
To: linux-arm-kernel@lists.infradead.org
Subject: [RFC PATCH 7/8] ARM: vmlinux.lds: Setup physical load address not virtual
Date: Mon, 18 Jun 2012 13:30:10 +0200 [thread overview]
Message-ID: <1340019011-18642-8-git-send-email-monstr@monstr.eu> (raw)
In-Reply-To: <1340019011-18642-1-git-send-email-monstr@monstr.eu>
Setup correct virtual and physical address in ELF LOAD section.
Signed-off-by: Michal Simek <monstr@monstr.eu>
---
arch/arm/include/asm/page.h | 2 ++
arch/arm/kernel/vmlinux.lds.S | 28 ++++++++++++++--------------
2 files changed, 16 insertions(+), 14 deletions(-)
diff --git a/arch/arm/include/asm/page.h b/arch/arm/include/asm/page.h
index ecf9019..4070209 100644
--- a/arch/arm/include/asm/page.h
+++ b/arch/arm/include/asm/page.h
@@ -15,6 +15,8 @@
#define PAGE_SIZE (_AC(1,UL) << PAGE_SHIFT)
#define PAGE_MASK (~(PAGE_SIZE-1))
+#define LOAD_OFFSET (CONFIG_PAGE_OFFSET - CONFIG_PHYS_OFFSET)
+
#ifndef __ASSEMBLY__
#ifndef CONFIG_MMU
diff --git a/arch/arm/kernel/vmlinux.lds.S b/arch/arm/kernel/vmlinux.lds.S
index c887be0..b996bc0 100644
--- a/arch/arm/kernel/vmlinux.lds.S
+++ b/arch/arm/kernel/vmlinux.lds.S
@@ -3,11 +3,11 @@
* Written by Martin Mares <mj@atrey.karlin.mff.cuni.cz>
*/
+#include <asm/page.h>
#include <asm-generic/vmlinux.lds.h>
#include <asm/cache.h>
#include <asm/thread_info.h>
#include <asm/memory.h>
-#include <asm/page.h>
#define PROC_INFO \
. = ALIGN(4); \
@@ -86,11 +86,11 @@ SECTIONS
#else
. = PAGE_OFFSET + TEXT_OFFSET;
#endif
- .head.text : {
+ .head.text : AT(ADDR(.head.text) - LOAD_OFFSET) {
_text = .;
HEAD_TEXT
}
- .text : { /* Real text segment */
+ .text : AT(ADDR(.text) - LOAD_OFFSET){ /* Real text segment */
_stext = .; /* Text and read-only data */
__exception_text_start = .;
*(.exception.text)
@@ -132,12 +132,12 @@ SECTIONS
* Stack unwinding tables
*/
. = ALIGN(8);
- .ARM.unwind_idx : {
+ .ARM.unwind_idx : AT(ADDR(.ARM.unwind_idx) - LOAD_OFFSET) {
__start_unwind_idx = .;
*(.ARM.exidx*)
__stop_unwind_idx = .;
}
- .ARM.unwind_tab : {
+ .ARM.unwind_tab : AT(ADDR(.ARM.unwind_tab) - LOAD_OFFSET) {
__start_unwind_tab = .;
*(.ARM.extab*)
__stop_unwind_tab = .;
@@ -152,35 +152,35 @@ SECTIONS
#endif
INIT_TEXT_SECTION(8)
- .exit.text : {
+ .exit.text : AT(ADDR(.exit.text) - LOAD_OFFSET) {
ARM_EXIT_KEEP(EXIT_TEXT)
}
- .init.proc.info : {
+ .init.proc.info : AT(ADDR(.init.proc.info) - LOAD_OFFSET) {
ARM_CPU_DISCARD(PROC_INFO)
}
- .init.arch.info : {
+ .init.arch.info : AT(ADDR(.init.arch.info) - LOAD_OFFSET) {
__arch_info_begin = .;
*(.arch.info.init)
__arch_info_end = .;
}
- .init.tagtable : {
+ .init.tagtable : AT(ADDR(.init.tagtable) - LOAD_OFFSET) {
__tagtable_begin = .;
*(.taglist.init)
__tagtable_end = .;
}
#ifdef CONFIG_SMP_ON_UP
- .init.smpalt : {
+ .init.smpalt : AT(ADDR(.init.smpalt) - LOAD_OFFSET) {
__smpalt_begin = .;
*(.alt.smp.init)
__smpalt_end = .;
}
#endif
- .init.pv_table : {
+ .init.pv_table : AT(ADDR(.init.pv_table) - LOAD_OFFSET) {
__pv_table_begin = .;
*(.pv_table)
__pv_table_end = .;
}
- .init.data : {
+ .init.data : AT(ADDR(.init.data) - LOAD_OFFSET) {
#ifndef CONFIG_XIP_KERNEL
INIT_DATA
#endif
@@ -191,7 +191,7 @@ SECTIONS
INIT_RAM_FS
}
#ifndef CONFIG_XIP_KERNEL
- .exit.data : {
+ .exit.data : AT(ADDR(.exit.data) - LOAD_OFFSET) {
ARM_EXIT_KEEP(EXIT_DATA)
}
#endif
@@ -207,7 +207,7 @@ SECTIONS
__data_loc = .;
#endif
- .data : AT(__data_loc) {
+ .data : AT(ADDR(.data) - LOAD_OFFSET) {
_data = .; /* address in memory */
_sdata = .;
--
1.7.0.4
next prev parent reply other threads:[~2012-06-18 11:30 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-06-18 11:30 ARM SMP/GIC/LDS patches for Xilinx Zynq remoteproc Michal Simek
2012-06-18 11:30 ` [RFC PATCH 1/8] ARM: gic: Support forcing cpumask for possible cpus in the system Michal Simek
2012-06-18 11:33 ` Russell King - ARM Linux
2012-06-18 11:41 ` Michal Simek
2012-06-20 6:48 ` Michal Simek
2012-06-18 11:30 ` [RFC PATCH 2/8] ARM: gic: Export gic_raise_softirq function for kernel modules Michal Simek
2012-06-18 11:30 ` [RFC PATCH 3/8] ARM: gic: Introduce new gic_set_cpu Michal Simek
2012-06-18 11:30 ` [RFC PATCH 4/8] ARM: smp: Move cpu initialization directly to ipi_cpu_stop Michal Simek
2012-06-18 11:34 ` Russell King - ARM Linux
2012-06-18 11:53 ` Michal Simek
2012-06-18 11:30 ` [RFC PATCH 5/8] AMP: smp: Extend number of IPIs Michal Simek
2012-06-18 11:35 ` Russell King - ARM Linux
2012-06-18 11:54 ` Michal Simek
2012-06-18 11:30 ` [RFC PATCH 6/8] ARM: smp: Use generic API for ipi Michal Simek
2012-06-18 11:36 ` Russell King - ARM Linux
2012-06-18 11:54 ` Michal Simek
2012-06-18 11:30 ` Michal Simek [this message]
2012-06-18 14:06 ` [RFC PATCH 7/8] ARM: vmlinux.lds: Setup physical load address not virtual Nicolas Pitre
2012-06-18 18:15 ` Michal Simek
2012-06-18 19:02 ` Nicolas Pitre
2012-06-18 19:23 ` Michal Simek
2012-06-18 21:10 ` Nicolas Pitre
2012-06-19 4:16 ` Michal Simek
2012-06-18 11:30 ` [RFC PATCH 8/8] ARM: vmlinux.lds: Setup correct entry point to physical address Michal Simek
2012-06-18 11:37 ` Russell King - ARM Linux
2012-06-18 11:45 ` Michal Simek
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