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-rw-r--r--samples/kprobes/kprobe_example.c33
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;
}