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authorKeshavamurthy Anil S <anil.s.keshavamurthy@intel.com>2005-06-27 15:17:16 -0700
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-06-27 15:23:54 -0700
commitc7b645f934e52a54af58142d91fb51f881f8ce26 (patch)
tree97ef8305edf17c07b7e0cc63453548e99e84b8fd /arch/ia64/kernel/vmlinux.lds.S
parenta528e21c235862cc1ae50e7809eb9116dc40ea0c (diff)
downloadlinux-c7b645f934e52a54af58142d91fb51f881f8ce26.tar.gz
[PATCH] kprobes/ia64: refuse kprobe on ivt code
Not safe to insert kprobes on IVT code.

This patch checks to see if the address on which Kprobes is being inserted is
in ivt code and if it is in ivt code then refuse to register kprobe.

Signed-off-by: Anil S Keshavamurthy <anil.s.keshavamurthy@intel.com>
Acked-by: David Mosberger <davidm@napali.hpl.hp.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'arch/ia64/kernel/vmlinux.lds.S')
-rw-r--r--arch/ia64/kernel/vmlinux.lds.S7
1 files changed, 6 insertions, 1 deletions
diff --git a/arch/ia64/kernel/vmlinux.lds.S b/arch/ia64/kernel/vmlinux.lds.S
index b9f0db4c1b04..a676e79e0681 100644
--- a/arch/ia64/kernel/vmlinux.lds.S
+++ b/arch/ia64/kernel/vmlinux.lds.S
@@ -8,6 +8,11 @@
 #define LOAD_OFFSET	(KERNEL_START - KERNEL_TR_PAGE_SIZE)
 #include <asm-generic/vmlinux.lds.h>
 
+#define IVT_TEXT							\
+		VMLINUX_SYMBOL(__start_ivt_text) = .;			\
+		*(.text.ivt)						\
+		VMLINUX_SYMBOL(__end_ivt_text) = .;
+
 OUTPUT_FORMAT("elf64-ia64-little")
 OUTPUT_ARCH(ia64)
 ENTRY(phys_start)
@@ -39,7 +44,7 @@ SECTIONS
 
   .text : AT(ADDR(.text) - LOAD_OFFSET)
     {
-	*(.text.ivt)
+	IVT_TEXT
 	*(.text)
 	SCHED_TEXT
 	LOCK_TEXT