diff options
| author | Jiaxun Yang <jiaxun.yang@flygoat.com> | 2024-02-02 12:30:26 +0000 |
|---|---|---|
| committer | Thomas Bogendoerfer <tsbogend@alpha.franken.de> | 2024-02-12 23:04:34 +0100 |
| commit | 11ba1728be3edb6928791f4c622f154ebe228ae6 (patch) | |
| tree | f60c7001335271870aaa3e6f3bef8996b22a1e9c /include | |
| parent | d55347bfe4e66dce2e1e7501e5492f4af3e315f8 (diff) | |
ptrace: Introduce exception_ip arch hook
On architectures with delay slot, architecture level instruction
pointer (or program counter) in pt_regs may differ from where
exception was triggered.
Introduce exception_ip hook to invoke architecture code and determine
actual instruction pointer to the exception.
Link: https://lore.kernel.org/lkml/00d1b813-c55f-4365-8d81-d70258e10b16@app.fastmail.com/
Signed-off-by: Jiaxun Yang <jiaxun.yang@flygoat.com>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/ptrace.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/include/linux/ptrace.h b/include/linux/ptrace.h index eaaef3ffec22..90507d4afcd6 100644 --- a/include/linux/ptrace.h +++ b/include/linux/ptrace.h @@ -393,6 +393,10 @@ static inline void user_single_step_report(struct pt_regs *regs) #define current_user_stack_pointer() user_stack_pointer(current_pt_regs()) #endif +#ifndef exception_ip +#define exception_ip(x) instruction_pointer(x) +#endif + extern int task_current_syscall(struct task_struct *target, struct syscall_info *info); extern void sigaction_compat_abi(struct k_sigaction *act, struct k_sigaction *oact); |