On 6/15/22 02:44, gaosong wrote:
Hi Richard.
On 2022/6/15 上午12:21, Richard Henderson wrote:
On 6/14/22 02:05, Song Gao wrote:
+#define ELF_HWCAP get_elf_hwcap()
+
+static uint32_t get_elf_hwcap(void)
+{
+ return 0;
+}
This should not be zero. See cpu_probe_common in the kernel. At minimum
HWCAP_LOONGARCH_CRC32 and HWCAP_LOONGARCH_FPU are missing. I don't know how many of the
other features are implemented in target/loongarch/.
HWCAP_LOONGARCH_LAM and HWCAP_LOONGARCH_UAL are need.
Ok, good. For clarity, you should determine these bits just like the kernel does from the
config registers set at cpu reset, via cpu->env.cpucfg[*].
r~
