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author | Rich Felker <dalias@aerifal.cx> | 2016-01-22 03:39:07 +0000 |
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committer | Rich Felker <dalias@aerifal.cx> | 2016-01-22 03:39:07 +0000 |
commit | 66215afc2e09f0153a63d58d3baec25cf0122b7b (patch) | |
tree | 13a9fe809bedd0c09191fcc14af64ef37a434b85 /src/linux/x32/sysinfo.c | |
parent | 513c043694f500a01bd8d899ff73441aa7457a1f (diff) | |
download | musl-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.c | 50 |
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); |