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authorAnton Arapov <anton@redhat.com>2013-04-03 18:00:34 +0200
committerOleg Nesterov <oleg@redhat.com>2013-04-13 15:31:56 +0200
commitf15706b79d6f71e016cd06afa21ee31500029067 (patch)
tree412045d4bd7922482a25eaaab76e741b8b457ea4 /arch/powerpc/include/asm/uprobes.h
parent791eca10107f2886c1915d91c99a3b022a75909c (diff)
downloadop-kernel-dev-f15706b79d6f71e016cd06afa21ee31500029067.zip
op-kernel-dev-f15706b79d6f71e016cd06afa21ee31500029067.tar.gz
uretprobes/powerpc: Hijack return address
Hijack the return address and replace it with a trampoline address. PowerPC implementation. Signed-off-by: Anton Arapov <anton@redhat.com> Acked-by: Ananth N Mavinakayanahalli <ananth@in.ibm.com> Acked-by: Srikar Dronamraju <srikar@linux.vnet.ibm.com> Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Diffstat (limited to 'arch/powerpc/include/asm/uprobes.h')
-rw-r--r--arch/powerpc/include/asm/uprobes.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/powerpc/include/asm/uprobes.h b/arch/powerpc/include/asm/uprobes.h
index b532060..2301602 100644
--- a/arch/powerpc/include/asm/uprobes.h
+++ b/arch/powerpc/include/asm/uprobes.h
@@ -51,4 +51,5 @@ extern int arch_uprobe_post_xol(struct arch_uprobe *aup, struct pt_regs *regs);
extern bool arch_uprobe_xol_was_trapped(struct task_struct *tsk);
extern int arch_uprobe_exception_notify(struct notifier_block *self, unsigned long val, void *data);
extern void arch_uprobe_abort_xol(struct arch_uprobe *aup, struct pt_regs *regs);
+extern unsigned long arch_uretprobe_hijack_return_addr(unsigned long trampoline_vaddr, struct pt_regs *regs);
#endif /* _ASM_UPROBES_H */
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