diff options
Diffstat (limited to 'samples/kprobes/kprobe_example.c')
| -rw-r--r-- | samples/kprobes/kprobe_example.c | 33 |
1 files changed, 17 insertions, 16 deletions
diff --git a/samples/kprobes/kprobe_example.c b/samples/kprobes/kprobe_example.c index d77a5464d107..5f1eb8b53c11 100644 --- a/samples/kprobes/kprobe_example.c +++ b/samples/kprobes/kprobe_example.c @@ -10,6 +10,8 @@ * whenever kernel_clone() is invoked to create a new process. */ +#define pr_fmt(fmt) "%s: " fmt, __func__ + #include <linux/kernel.h> #include <linux/module.h> #include <linux/kprobes.h> @@ -27,32 +29,31 @@ static struct kprobe kp = { static int __kprobes handler_pre(struct kprobe *p, struct pt_regs *regs) { #ifdef CONFIG_X86 - pr_info("<%s> pre_handler: p->addr = 0x%p, ip = %lx, flags = 0x%lx\n", + pr_info("<%s> p->addr = 0x%p, ip = %lx, flags = 0x%lx\n", p->symbol_name, p->addr, regs->ip, regs->flags); #endif #ifdef CONFIG_PPC - pr_info("<%s> pre_handler: p->addr = 0x%p, nip = 0x%lx, msr = 0x%lx\n", + pr_info("<%s> p->addr = 0x%p, nip = 0x%lx, msr = 0x%lx\n", p->symbol_name, p->addr, regs->nip, regs->msr); #endif #ifdef CONFIG_MIPS - pr_info("<%s> pre_handler: p->addr = 0x%p, epc = 0x%lx, status = 0x%lx\n", + pr_info("<%s> p->addr = 0x%p, epc = 0x%lx, status = 0x%lx\n", p->symbol_name, p->addr, regs->cp0_epc, regs->cp0_status); #endif #ifdef CONFIG_ARM64 - pr_info("<%s> pre_handler: p->addr = 0x%p, pc = 0x%lx," - " pstate = 0x%lx\n", + pr_info("<%s> p->addr = 0x%p, pc = 0x%lx, pstate = 0x%lx\n", p->symbol_name, p->addr, (long)regs->pc, (long)regs->pstate); #endif #ifdef CONFIG_ARM - pr_info("<%s> pre_handler: p->addr = 0x%p, pc = 0x%lx, cpsr = 0x%lx\n", + pr_info("<%s> p->addr = 0x%p, pc = 0x%lx, cpsr = 0x%lx\n", p->symbol_name, p->addr, (long)regs->ARM_pc, (long)regs->ARM_cpsr); #endif #ifdef CONFIG_RISCV - pr_info("<%s> pre_handler: p->addr = 0x%p, pc = 0x%lx, status = 0x%lx\n", + pr_info("<%s> p->addr = 0x%p, pc = 0x%lx, status = 0x%lx\n", p->symbol_name, p->addr, regs->epc, regs->status); #endif #ifdef CONFIG_S390 - pr_info("<%s> pre_handler: p->addr, 0x%p, ip = 0x%lx, flags = 0x%lx\n", + pr_info("<%s> p->addr, 0x%p, ip = 0x%lx, flags = 0x%lx\n", p->symbol_name, p->addr, regs->psw.addr, regs->flags); #endif @@ -65,31 +66,31 @@ static void __kprobes handler_post(struct kprobe *p, struct pt_regs *regs, unsigned long flags) { #ifdef CONFIG_X86 - pr_info("<%s> post_handler: p->addr = 0x%p, flags = 0x%lx\n", + pr_info("<%s> p->addr = 0x%p, flags = 0x%lx\n", p->symbol_name, p->addr, regs->flags); #endif #ifdef CONFIG_PPC - pr_info("<%s> post_handler: p->addr = 0x%p, msr = 0x%lx\n", + pr_info("<%s> p->addr = 0x%p, msr = 0x%lx\n", p->symbol_name, p->addr, regs->msr); #endif #ifdef CONFIG_MIPS - pr_info("<%s> post_handler: p->addr = 0x%p, status = 0x%lx\n", + pr_info("<%s> p->addr = 0x%p, status = 0x%lx\n", p->symbol_name, p->addr, regs->cp0_status); #endif #ifdef CONFIG_ARM64 - pr_info("<%s> post_handler: p->addr = 0x%p, pstate = 0x%lx\n", + pr_info("<%s> p->addr = 0x%p, pstate = 0x%lx\n", p->symbol_name, p->addr, (long)regs->pstate); #endif #ifdef CONFIG_ARM - pr_info("<%s> post_handler: p->addr = 0x%p, cpsr = 0x%lx\n", + pr_info("<%s> p->addr = 0x%p, cpsr = 0x%lx\n", p->symbol_name, p->addr, (long)regs->ARM_cpsr); #endif #ifdef CONFIG_RISCV - pr_info("<%s> post_handler: p->addr = 0x%p, status = 0x%lx\n", + pr_info("<%s> p->addr = 0x%p, status = 0x%lx\n", p->symbol_name, p->addr, regs->status); #endif #ifdef CONFIG_S390 - pr_info("<%s> pre_handler: p->addr, 0x%p, flags = 0x%lx\n", + pr_info("<%s> p->addr, 0x%p, flags = 0x%lx\n", p->symbol_name, p->addr, regs->flags); #endif } @@ -101,7 +102,7 @@ static void __kprobes handler_post(struct kprobe *p, struct pt_regs *regs, */ static int handler_fault(struct kprobe *p, struct pt_regs *regs, int trapnr) { - pr_info("fault_handler: p->addr = 0x%p, trap #%d\n", p->addr, trapnr); + pr_info("p->addr = 0x%p, trap #%d\n", p->addr, trapnr); /* Return 0 because we don't handle the fault. */ return 0; } |