[PATCH RESEND 2/3] riscv: Improve __show_regs
From: Kefeng Wang <hidden>
Date: 2021-01-11 12:35:06
Subsystem:
risc-v architecture, the rest · Maintainers:
Paul Walmsley, Palmer Dabbelt, Albert Ou, Linus Torvalds
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 <redacted> --- arch/riscv/kernel/process.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-)
diff --git a/arch/riscv/kernel/process.c b/arch/riscv/kernel/process.c
index 78bb3a00d249..d8c099aa1337 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);
--
2.26.2
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