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| author |  WANG Xuerui <git@xen0n.name>
| 2023-05-01 17:19:10 +0800 |
|---|---|---|
| committer |  Huacai Chen <chenhuacai@loongson.cn>
| 2023-05-01 17:19:10 +0800 |
| commit | f6a79b6036ef220028db190c7424ce8099c98090 (patch) | |
| tree | 132eb3973d0a21480b2c42b5b4511e3093bb12cb /arch/loongarch | |
| parent | LoongArch: Define regular names for BCE/WATCH/HVC/GSPR exceptions (diff) | |
| download | linux-f6a79b6036ef220028db190c7424ce8099c98090.tar.gz linux-f6a79b6036ef220028db190c7424ce8099c98090.tar.bz2 linux-f6a79b6036ef220028db190c7424ce8099c98090.zip | |
LoongArch: Print GPRs with ABI names when showing registers
Show PC (CSR.ERA) in place of $zero, and also show the syscall restart
flag (conveniently stuffed in regs[0]) if non-zero.
Signed-off-by: WANG Xuerui <git@xen0n.name>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
Diffstat (limited to 'arch/loongarch')
| -rw-r--r-- | arch/loongarch/kernel/traps.c | 36 |
1 files changed, 23 insertions, 13 deletions
diff --git a/arch/loongarch/kernel/traps.c b/arch/loongarch/kernel/traps.c index 3fb4709c3b19..57768a6de1cf 100644 --- a/arch/loongarch/kernel/traps.c +++ b/arch/loongarch/kernel/traps.c @@ -158,22 +158,32 @@ static void __show_regs(const struct pt_regs *regs) const int field = 2 * sizeof(unsigned long); unsigned int excsubcode; unsigned int exccode; - int i; show_regs_print_info(KERN_DEFAULT); - /* - * Saved main processor registers - */ - for (i = 0; i < 32; ) { - if ((i % 4) == 0) - printk("$%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 |