Hi Richard,
On 2024/10/17 02:38, Richard Henderson wrote:
2595: if (dec->cfg->ext_zcmop) {
2690: if (dec->cfg->ext_zcmp && ((inst >> 12) & 0b01)) {
2716: if (!dec->cfg->ext_zcmt) {
2726: if (!dec->cfg->ext_zcmp) {
4028: if (dec->cfg->ext_zimop) {
5044: if (dec->cfg->ext_zfinx) {
5051: if (dec->cfg->ext_zfinx) {
5058: if (dec->cfg->ext_zfinx) {
5065: if (dec->cfg->ext_zfinx) {
5371: if (guard_func(cfg)) {
This structure comes from RISCVCPU, a target structure.
Oops. We missed this.
There is no such structure for the host, causing null pointer
dereferences.
The zfinx references can be changed to
dec->cfg && dec->cfg->ext_zfinx
but some of them can simply be removed, e.g. zcmop and zimop, which
are otherwise reserved encodings.
Should we probe the host feature like what we do in tcg backend support
and then do the right disassemble according to the probe result?
Thanks,
Zhiwei
r~
