From: Kefeng Wang <wangkefeng.wang@huawei.com>
Date: Mon, 11 Jan 2021 12:40:13 +0000 (+0800)
Subject: riscv: Improve __show_regs
X-Git-Tag: v5.15~1621^2~38
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=da401e89453266c11277b42e007159a2b6ef82d3;p=platform%2Fkernel%2Flinux-starfive.git

riscv: Improve __show_regs

Show the function symbols of epc and ra to improve the
readability of crash reports, and align the printing
formats about the raw epc value.

Signed-off-by: Kefeng Wang <wangkefeng.wang@huawei.com>
Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>
---

diff --git a/arch/riscv/kernel/process.c b/arch/riscv/kernel/process.c
index ced48d9..19f4688 100644
--- a/arch/riscv/kernel/process.c
+++ b/arch/riscv/kernel/process.c
@@ -44,7 +44,12 @@ void __show_regs(struct pt_regs *regs)
 {
 	show_regs_print_info(KERN_DEFAULT);
 
-	pr_cont("epc: " REG_FMT " ra : " REG_FMT " sp : " REG_FMT "\n",
+	if (!user_mode(regs)) {
+		pr_cont("epc : %pS\n", (void *)regs->epc);
+		pr_cont(" ra : %pS\n", (void *)regs->ra);
+	}
+
+	pr_cont("epc : " REG_FMT " ra : " REG_FMT " sp : " REG_FMT "\n",
 		regs->epc, regs->ra, regs->sp);
 	pr_cont(" gp : " REG_FMT " tp : " REG_FMT " t0 : " REG_FMT "\n",
 		regs->gp, regs->tp, regs->t0);