[Crash-utility][PATCH V4 3/9] RISCV64: Add 'dis' command support

[Xianting Tian]

Use generic_dis_filter() function to support dis command implementation.

With this patch, we can get the disassembled code,
crash> dis __crash_kexec
0xffffffff80088580 <__crash_kexec>:     addi    sp,sp,-352
0xffffffff80088582 <__crash_kexec+2>:   sd      s0,336(sp)
0xffffffff80088584 <__crash_kexec+4>:   sd      s1,328(sp)
0xffffffff80088586 <__crash_kexec+6>:   sd      s2,320(sp)
0xffffffff80088588 <__crash_kexec+8>:   addi    s0,sp,352
0xffffffff8008858a <__crash_kexec+10>:  sd      ra,344(sp)
0xffffffff8008858c <__crash_kexec+12>:  sd      s3,312(sp)
0xffffffff8008858e <__crash_kexec+14>:  sd      s4,304(sp)
0xffffffff80088590 <__crash_kexec+16>:  auipc   s2,0x1057
0xffffffff80088594 <__crash_kexec+20>:  addi    s2,s2,-1256
0xffffffff80088598 <__crash_kexec+24>:  ld      a5,0(s2)
0xffffffff8008859c <__crash_kexec+28>:  mv      s1,a0
0xffffffff8008859e <__crash_kexec+30>:  auipc   a0,0xfff

Signed-off-by: Xianting Tian <xianting.tian at linux.alibaba.com>
---
 riscv64.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/riscv64.c b/riscv64.c
index e792c70..a137232 100644
--- a/riscv64.c
+++ b/riscv64.c
@@ -988,6 +988,7 @@ riscv64_init(int when)
 		machdep->is_task_addr = riscv64_is_task_addr;
 		machdep->get_smp_cpus = riscv64_get_smp_cpus;
 		machdep->value_to_symbol = generic_machdep_value_to_symbol;
+		machdep->dis_filter = generic_dis_filter;
 		machdep->show_interrupts = generic_show_interrupts;
 		machdep->get_irq_affinity = generic_get_irq_affinity;
 		machdep->init_kernel_pgd = NULL; /* pgd set by symbol_value("swapper_pg_dir") */
-- 
2.17.1