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samples/kprobes: Add LoongArch support

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Add LoongArch specific info in handler_pre() and handler_post().

Tested-by: Jeff Xie <xiehuan09@gmail.com>
Signed-off-by: Tiezhu Yang <yangtiezhu@loongson.cn>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
This commit is contained in:
Tiezhu Yang
2023-02-25 15:52:57 +08:00
committed by Huacai Chen
parent fcf77d0162
commit a6484baa3b
1 changed files with 8 additions and 0 deletions
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8
samples/kprobes/kprobe_example.c
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@@ -55,6 +55,10 @@ static int __kprobes handler_pre(struct kprobe *p, struct pt_regs *regs)
pr_info("<%s> 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); p->symbol_name, p->addr, regs->psw.addr, regs->flags);
#endif #endif
#ifdef CONFIG_LOONGARCH
pr_info("<%s> p->addr = 0x%p, era = 0x%lx, estat = 0x%lx\n",
p->symbol_name, p->addr, regs->csr_era, regs->csr_estat);
#endif
/* A dump_stack() here will give a stack backtrace */ /* A dump_stack() here will give a stack backtrace */
return 0; return 0;
@@ -92,6 +96,10 @@ static void __kprobes handler_post(struct kprobe *p, struct pt_regs *regs,
pr_info("<%s> 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); p->symbol_name, p->addr, regs->flags);
#endif #endif
#ifdef CONFIG_LOONGARCH
pr_info("<%s> p->addr = 0x%p, estat = 0x%lx\n",
p->symbol_name, p->addr, regs->csr_estat);
#endif
} }
static int __init kprobe_init(void) static int __init kprobe_init(void)