diff options
Diffstat (limited to 'src/misc/getrusage.c')
| -rw-r--r-- | src/misc/getrusage.c | 30 |
1 files changed, 29 insertions, 1 deletions
diff --git a/src/misc/getrusage.c b/src/misc/getrusage.c index 0aaf0ac7..8e03e2e3 100644 --- a/src/misc/getrusage.c +++ b/src/misc/getrusage.c @@ -1,7 +1,35 @@ #include <sys/resource.h> +#include <string.h> +#include <errno.h> #include "syscall.h" int getrusage(int who, struct rusage *ru) { - return syscall(SYS_getrusage, who, ru); + int r; +#ifdef SYS_getrusage_time64 + long long kru64[18]; + r = __syscall(SYS_getrusage_time64, who, kru64); + if (!r) { + ru->ru_utime = (struct timeval) + { .tv_sec = kru64[0], .tv_usec = kru64[1] }; + ru->ru_stime = (struct timeval) + { .tv_sec = kru64[2], .tv_usec = kru64[3] }; + char *slots = (char *)&ru->ru_maxrss; + for (int i=0; i<14; i++) + *(long *)(slots + i*sizeof(long)) = kru64[4+i]; + } + if (SYS_getrusage_time64 == SYS_getrusage || r != -ENOSYS) + return __syscall_ret(r); +#endif + char *dest = (char *)&ru->ru_maxrss - 4*sizeof(long); + r = __syscall(SYS_getrusage, who, dest); + if (!r && sizeof(time_t) > sizeof(long)) { + long kru[4]; + memcpy(kru, dest, 4*sizeof(long)); + ru->ru_utime = (struct timeval) + { .tv_sec = kru[0], .tv_usec = kru[1] }; + ru->ru_stime = (struct timeval) + { .tv_sec = kru[2], .tv_usec = kru[3] }; + } + return __syscall_ret(r); } |