diff options
| author | Guo Ren <guoren@linux.alibaba.com> | 2020-04-02 14:52:27 +0300 |
|---|---|---|
| committer | Guo Ren <guoren@linux.alibaba.com> | 2020-04-03 06:37:51 +0300 |
| commit | 8f6bb793b2be82f1f73bfb416486f156f70b4314 (patch) | |
| tree | 783eef0d08ebaa652b335db205f99e970d4a2c0d /arch/csky/kernel/traps.c | |
| parent | 33e53ae1ce413a081254e686d9b27cc1b3585e2f (diff) | |
| download | linux-8f6bb793b2be82f1f73bfb416486f156f70b4314.tar.xz | |
csky: Add uprobes support
This patch adds support for uprobes on csky architecture.
Just like kprobe, it support single-step and simulate instructions.
Signed-off-by: Guo Ren <guoren@linux.alibaba.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Steven Rostedt (VMware) <rostedt@goodmis.org>
Diffstat (limited to 'arch/csky/kernel/traps.c')
| -rw-r--r-- | arch/csky/kernel/traps.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/arch/csky/kernel/traps.c b/arch/csky/kernel/traps.c index c6a40806977f..fcc3a69831ad 100644 --- a/arch/csky/kernel/traps.c +++ b/arch/csky/kernel/traps.c @@ -130,6 +130,10 @@ asmlinkage void trap_c(struct pt_regs *regs) if (kprobe_single_step_handler(regs)) return; #endif +#ifdef CONFIG_UPROBES + if (uprobe_single_step_handler(regs)) + return; +#endif info.si_code = TRAP_TRACE; sig = SIGTRAP; break; @@ -139,6 +143,10 @@ asmlinkage void trap_c(struct pt_regs *regs) if (kprobe_breakpoint_handler(regs)) return; #endif +#ifdef CONFIG_UPROBES + if (uprobe_breakpoint_handler(regs)) + return; +#endif die_if_kernel("Kernel mode ILLEGAL", regs, vector); #ifndef CONFIG_CPU_NO_USER_BKPT if (*(uint16_t *)instruction_pointer(regs) != USR_BKPT) |