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| author | Pratyush Anand <panand@redhat.com> | 2015-01-05 09:55:52 +0530 |
|---|---|---|
| committer | Steve Capper <steve.capper@linaro.org> | 2015-01-27 16:46:19 +0000 |
| commit | b9d90fc05342045e0192a0b2ce028c88dc53eec4 (patch) | |
| tree | 26a44ae24081fb46446241726a5e091618c684d9 | |
| parent | a9c74c15500ba2e663d4f9e09f7756bfa7f1c229 (diff) | |
| download | linux-b9d90fc05342045e0192a0b2ce028c88dc53eec4.tar.gz | |
ARM64: Add helper for link pointer
At many a place we program procedure link pointer ie regs[30]. So adding
helper to do that.
Signed-off-by: Pratyush Anand <panand@redhat.com>
| -rw-r--r-- | arch/arm64/include/asm/ptrace.h | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/arch/arm64/include/asm/ptrace.h b/arch/arm64/include/asm/ptrace.h index b5d4f92ae2a..fa40903264a 100644 --- a/arch/arm64/include/asm/ptrace.h +++ b/arch/arm64/include/asm/ptrace.h @@ -224,6 +224,13 @@ 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 |