At many a place we program procedure link pointer ie regs[30]. So adding
helper to do that.
Signed-off-by: Pratyush Anand <pan...@redhat.com>
---
arch/arm64/include/asm/ptrace.h | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/arch/arm64/include/asm/ptrace.h b/arch/arm64/include/asm/ptrace.h
index 3ea7f5a04bfc..fa2c122e5bd6 100644
--- a/arch/arm64/include/asm/ptrace.h
+++ b/arch/arm64/include/asm/ptrace.h
@@ -227,6 +227,13 @@ static inline int valid_user_regs(struct user_pt_regs
*regs)
#include <asm-generic/ptrace.h>
#define stack_pointer(regs) ((regs)->sp)
+#define procedure_link_pointer(regs) ((regs)->regs[30])
+
+static inline void procedure_link_pointer_set(struct pt_regs *regs,
+ unsigned long val)
+{
+ procedure_link_pointer(regs) = val;
+}
#ifdef CONFIG_SMP
#undef profile_pc
--
2.1.0
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