diff options
| author | Wang Kefeng <wangkefeng.wang@huawei.com> | 2022-12-04 04:46:40 +0100 |
|---|---|---|
| committer | Russell King (Oracle) <rmk+kernel@armlinux.org.uk> | 2022-12-07 14:08:38 +0000 |
| commit | aaa4dd1b47f5ff5ef477fec5dcc6c397b457f1c2 (patch) | |
| tree | 3cd94c5410ffe0e7ddd3ddc6c758a531d99a7cb9 /arch/arm/include/asm | |
| parent | ba290d4f1f7733732896567d2a1874f01e20fff4 (diff) | |
ARM: 9279/1: support function error injection
This enables HAVE_FUNCTION_ERROR_INJECTION by adding necessary
regs_set_return_value() and override_function_with_return().
Simply tested according to Documentation/fault-injection/fault-injection.rst.
Signed-off-by: Kefeng Wang <wangkefeng.wang@huawei.com>
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Diffstat (limited to 'arch/arm/include/asm')
| -rw-r--r-- | arch/arm/include/asm/ptrace.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/arch/arm/include/asm/ptrace.h b/arch/arm/include/asm/ptrace.h index 1408a6a15d0e..483b8ddfcb82 100644 --- a/arch/arm/include/asm/ptrace.h +++ b/arch/arm/include/asm/ptrace.h @@ -163,6 +163,10 @@ static inline unsigned long user_stack_pointer(struct pt_regs *regs) ((current_stack_pointer | (THREAD_SIZE - 1)) - 7) - 1; \ }) +static inline void regs_set_return_value(struct pt_regs *regs, unsigned long rc) +{ + regs->ARM_r0 = rc; +} /* * Update ITSTATE after normal execution of an IT block instruction. |