#include <jni.h>
#include <string>
#include <utility>
#include <sys/auxv.h>
uint64_t hwcapsByAsm() {
uint64_t value;
asm volatile("mrs %[result], ID_AA64PFR0_EL1 "
: [result] "=r"(value));
return value;
}
extern "C"
JNIEXPORT jstring JNICALL
Java_moe_protocol_servlet_utils_PlatformUtils_outCpuInfo(JNIEnv *env, jobject thiz) {
unsigned long hwcaps = getauxval(AT_HWCAP);
int i;
char *list[32] = {"fp", "asimd", "evtstrm", "aes", "pmull", "sha1",
"sha2", "crc32", "atomics", "fphp", "asimdhp",
"cpuid", "asimdrdm","jscvt", "fcma", "lrcpc",
"dcpop", "sha3", "sm3", "sm4", "asimddp" ,
"sha512", "sve", "asimdfhm", "dit", "uscat",
"ilrcpc", "flagm", "ssbs", "sb", "paca","pacg",};
std::string out;
out += "flags: ";
for (i = 0; i< 32; i++){
if (hwcaps & BIT_SHIFTS(i)) {
out += list[i];
out += ", ";
}
}
return env->NewStringUTF(out.c_str());
}
