Commit f6a79b60 authored by WANG Xuerui's avatar WANG Xuerui Committed by Huacai Chen
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LoongArch: Print GPRs with ABI names when showing registers 



Show PC (CSR.ERA) in place of $zero, and also show the syscall restart
flag (conveniently stuffed in regs[0]) if non-zero.

Signed-off-by: default avatarWANG Xuerui <git@xen0n.name>
Signed-off-by: default avatarHuacai Chen <chenhuacai@loongson.cn>
parent aa552254

arch/loongarch/kernel/traps.c

+23 −13
Original line number Diff line number Diff line
@@ -158,22 +158,32 @@ static void __show_regs(const struct pt_regs *regs) 
	const int field = 2 * sizeof(unsigned long);

	unsigned int excsubcode;

	unsigned int exccode;

	int i;



	show_regs_print_info(KERN_DEFAULT);



	/*

	 * Saved main processor registers

	 */

	for (i = 0; i < 32; ) {

		if ((i % 4) == 0)

			printk("$%2d   :", i);

		pr_cont(" %0*lx", field, regs->regs[i]);



		i++;

		if ((i % 4) == 0)

			pr_cont("\n");

	}

	/* Print saved GPRs except $zero (substituting with PC/ERA) */

#define GPR_FIELD(x) field, regs->regs[x]

	printk("pc %0*lx ra %0*lx tp %0*lx sp %0*lx\n",

	       field, regs->csr_era, GPR_FIELD(1), GPR_FIELD(2), GPR_FIELD(3));

	printk("a0 %0*lx a1 %0*lx a2 %0*lx a3 %0*lx\n",

	       GPR_FIELD(4), GPR_FIELD(5), GPR_FIELD(6), GPR_FIELD(7));

	printk("a4 %0*lx a5 %0*lx a6 %0*lx a7 %0*lx\n",

	       GPR_FIELD(8), GPR_FIELD(9), GPR_FIELD(10), GPR_FIELD(11));

	printk("t0 %0*lx t1 %0*lx t2 %0*lx t3 %0*lx\n",

	       GPR_FIELD(12), GPR_FIELD(13), GPR_FIELD(14), GPR_FIELD(15));

	printk("t4 %0*lx t5 %0*lx t6 %0*lx t7 %0*lx\n",

	       GPR_FIELD(16), GPR_FIELD(17), GPR_FIELD(18), GPR_FIELD(19));

	printk("t8 %0*lx u0 %0*lx s9 %0*lx s0 %0*lx\n",

	       GPR_FIELD(20), GPR_FIELD(21), GPR_FIELD(22), GPR_FIELD(23));

	printk("s1 %0*lx s2 %0*lx s3 %0*lx s4 %0*lx\n",

	       GPR_FIELD(24), GPR_FIELD(25), GPR_FIELD(26), GPR_FIELD(27));

	printk("s5 %0*lx s6 %0*lx s7 %0*lx s8 %0*lx\n",

	       GPR_FIELD(28), GPR_FIELD(29), GPR_FIELD(30), GPR_FIELD(31));



	/* The slot for $zero is reused as the syscall restart flag */

	if (regs->regs[0])

		printk("syscall restart flag: %0*lx\n", GPR_FIELD(0));

#undef GPR_FIELD



	/*

	 * Saved csr registers