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authorRussell King <rmk+kernel@arm.linux.org.uk>2014-11-03 11:12:13 +0100
committerRussell King <rmk+kernel@arm.linux.org.uk>2014-11-03 11:12:13 +0100
commit06e944b8e5fc4bec83f102f98c1ee4f972f5f072 (patch)
treed53b1c3ca270f49f1cae63bbe117cc8587e51510 /arch/arm/kernel/vmlinux.lds.S
parentLinux 3.18-rc1 (diff)
parentARM: mm: allow text and rodata sections to be read-only (diff)
downloadlinux-06e944b8e5fc4bec83f102f98c1ee4f972f5f072.tar.xz
linux-06e944b8e5fc4bec83f102f98c1ee4f972f5f072.zip
Merge tag 'ronx-next' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux into devel-stable
generic fixmaps ARM support for CONFIG_DEBUG_RODATA
Diffstat (limited to 'arch/arm/kernel/vmlinux.lds.S')
-rw-r--r--arch/arm/kernel/vmlinux.lds.S19
1 files changed, 19 insertions, 0 deletions
diff --git a/arch/arm/kernel/vmlinux.lds.S b/arch/arm/kernel/vmlinux.lds.S
index 8e95aa47457a..b31aa73e8076 100644
--- a/arch/arm/kernel/vmlinux.lds.S
+++ b/arch/arm/kernel/vmlinux.lds.S
@@ -8,6 +8,9 @@
#include <asm/thread_info.h>
#include <asm/memory.h>
#include <asm/page.h>
+#ifdef CONFIG_ARM_KERNMEM_PERMS
+#include <asm/pgtable.h>
+#endif
#define PROC_INFO \
. = ALIGN(4); \
@@ -90,6 +93,11 @@ SECTIONS
_text = .;
HEAD_TEXT
}
+
+#ifdef CONFIG_ARM_KERNMEM_PERMS
+ . = ALIGN(1<<SECTION_SHIFT);
+#endif
+
.text : { /* Real text segment */
_stext = .; /* Text and read-only data */
__exception_text_start = .;
@@ -112,6 +120,9 @@ SECTIONS
ARM_CPU_KEEP(PROC_INFO)
}
+#ifdef CONFIG_DEBUG_RODATA
+ . = ALIGN(1<<SECTION_SHIFT);
+#endif
RO_DATA(PAGE_SIZE)
. = ALIGN(4);
@@ -145,7 +156,11 @@ SECTIONS
_etext = .; /* End of text and rodata section */
#ifndef CONFIG_XIP_KERNEL
+# ifdef CONFIG_ARM_KERNMEM_PERMS
+ . = ALIGN(1<<SECTION_SHIFT);
+# else
. = ALIGN(PAGE_SIZE);
+# endif
__init_begin = .;
#endif
/*
@@ -219,7 +234,11 @@ SECTIONS
__data_loc = ALIGN(4); /* location in binary */
. = PAGE_OFFSET + TEXT_OFFSET;
#else
+#ifdef CONFIG_ARM_KERNMEM_PERMS
+ . = ALIGN(1<<SECTION_SHIFT);
+#else
. = ALIGN(THREAD_SIZE);
+#endif
__init_end = .;
__data_loc = .;
#endif