Add a "fork" of musl as //fusl.

fusl/arch/x32/src/sysinfo.c

+#include <sys/sysinfo.h>
+#include "syscall.h"
+#include "libc.h"
+
+#define klong long long
+#define kulong unsigned long long
+
+struct kernel_sysinfo {
+        klong uptime;
+        kulong loads[3];
+        kulong totalram;
+        kulong freeram;
+        kulong sharedram;
+        kulong bufferram;
+        kulong totalswap;
+        kulong freeswap;
+        short procs;
+        short pad;
+        kulong totalhigh;
+        kulong freehigh;
+        unsigned mem_unit;
+};
+
+int __lsysinfo(struct sysinfo *info)
+{
+        struct kernel_sysinfo tmp;
+        int ret = syscall(SYS_sysinfo, &tmp);
+        if(ret == -1) return ret;
+        info->uptime = tmp.uptime;
+        info->loads[0] = tmp.loads[0];
+        info->loads[1] = tmp.loads[1];
+        info->loads[2] = tmp.loads[2];
+        kulong shifts;
+        kulong max = tmp.totalram | tmp.totalswap;
+        __asm__("bsr %1,%0" : "=r"(shifts) : "r"(max));
+        shifts = shifts >= 32 ? shifts - 31 : 0;
+        info->totalram = tmp.totalram >> shifts;
+        info->freeram = tmp.freeram >> shifts;
+        info->sharedram = tmp.sharedram >> shifts;
+        info->bufferram = tmp.bufferram >> shifts;
+        info->totalswap = tmp.totalswap >> shifts;
+        info->freeswap = tmp.freeswap >> shifts;
+        info->procs = tmp.procs ;
+        info->totalhigh = tmp.totalhigh >> shifts;
+        info->freehigh = tmp.freehigh >> shifts;
+        info->mem_unit = (tmp.mem_unit ? tmp.mem_unit : 1) << shifts;
+        return ret;
+}
+
+weak_alias(__lsysinfo, sysinfo);