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[PATCH] x86/x86_64: mark rodata section read only: generic infrastructure

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Generic prep-work for marking the .rodata section readonly:
* Align the rodata section at 4Kb boundary
* call the mark_rodata_ro() function when available

Signed-off-by: Arjan van de Ven <[email protected]>
Signed-off-by: Ingo Molnar <[email protected]>
Signed-off-by: Adrian Bunk <[email protected]>
Cc: Andi Kleen <[email protected]>
Signed-off-by: Jesper Juhl <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
This commit is contained in:
Arjan van de Ven 2006-01-06 00:12:01 -08:00 • committed by Linus Torvalds
commit 37b73c8281
2 changed files with 9 additions and 0 deletions
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4
include/asm-generic/vmlinux.lds.h
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@ -10,6 +10,8 @@
#define ALIGN_FUNCTION() . = ALIGN(8)
#define RODATA \
. = ALIGN(4096); \
__start_rodata = .; \
.rodata : AT(ADDR(.rodata) - LOAD_OFFSET) { \
*(.rodata) *(.rodata.*) \
*(__vermagic) /* Kernel version magic */ \
@ -74,6 +76,8 @@
__ksymtab_strings : AT(ADDR(__ksymtab_strings) - LOAD_OFFSET) { \
*(__ksymtab_strings) \
} \
__end_rodata = .; \
. = ALIGN(4096); \
\
/* Built-in module parameters. */ \
__param : AT(ADDR(__param) - LOAD_OFFSET) { \