riscv: add userland instruction dump to RISC-V splats
Add userland instruction dump and rename dump_kernel_instr()
to dump_instr().
An example:
[ 0.822439] Freeing unused kernel image (initmem) memory: 6916K
[ 0.823817] Run /init as init process
[ 0.839411] init[1]: unhandled signal 4 code 0x1 at 0x000000000005be18 in bb[10000+5fb000]
[ 0.840751] CPU: 0 PID: 1 Comm: init Not tainted
5.14.0-rc4-00049-gbd644290aa72-dirty #187
[ 0.841373] Hardware name: , BIOS
[ 0.841743] epc :
000000000005be18 ra :
0000000000079e74 sp :
0000003fffcafda0
[ 0.842271] gp :
ffffffff816e9dc8 tp :
0000000000000000 t0 :
0000000000000000
[ 0.842947] t1 :
0000003fffc9fdf0 t2 :
0000000000000000 s0 :
0000000000000000
[ 0.843434] s1 :
0000000000000000 a0 :
0000003fffca0190 a1 :
0000003fffcafe18
[ 0.843891] a2 :
0000000000000000 a3 :
0000000000000000 a4 :
0000000000000000
[ 0.844357] a5 :
0000000000000000 a6 :
0000000000000000 a7 :
0000000000000000
[ 0.844803] s2 :
0000000000000000 s3 :
0000000000000000 s4 :
0000000000000000
[ 0.845253] s5 :
0000000000000000 s6 :
0000000000000000 s7 :
0000000000000000
[ 0.845722] s8 :
0000000000000000 s9 :
0000000000000000 s10:
0000000000000000
[ 0.846180] s11:
0000000000d144e0 t3 :
0000000000000000 t4 :
0000000000000000
[ 0.846616] t5 :
0000000000000000 t6 :
0000000000000000
[ 0.847204] status:
0000000200000020 badaddr:
00000000f0028053 cause:
0000000000000002
[ 0.848219] Code: f06f ff5f 3823 fa11 0113 fb01 2e23 0201 0293 0000 (8053) f002
[ 0.851016] Kernel panic - not syncing: Attempted to kill init! exitcode=0x00000004
Signed-off-by: Yunhui Cui <cuiyunhui@bytedance.com>
Reviewed-by: Björn Töpel <bjorn@rivosinc.com>
Link: https://lore.kernel.org/r/20230912021349.28302-1-cuiyunhui@bytedance.com
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>