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authorRich Felker <dalias@aerifal.cx>2016-01-22 03:39:07 +0000
committerRich Felker <dalias@aerifal.cx>2016-01-22 03:39:07 +0000
commit66215afc2e09f0153a63d58d3baec25cf0122b7b (patch)
tree13a9fe809bedd0c09191fcc14af64ef37a434b85 /src/linux/x32/sysinfo.c
parent513c043694f500a01bd8d899ff73441aa7457a1f (diff)
downloadmusl-66215afc2e09f0153a63d58d3baec25cf0122b7b.tar.gz
move x32 sysinfo impl and syscall fixup code out of arch/x32/src
all such arch-specific translation units are being moved to appropriate arch dirs under the main src tree.
Diffstat (limited to 'src/linux/x32/sysinfo.c')
-rw-r--r--src/linux/x32/sysinfo.c50
1 files changed, 50 insertions, 0 deletions
diff --git a/src/linux/x32/sysinfo.c b/src/linux/x32/sysinfo.c
new file mode 100644
index 00000000..d1c1b148
--- /dev/null
+++ b/src/linux/x32/sysinfo.c
@@ -0,0 +1,50 @@
+#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);