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support vdso which borrows clocksource from linux

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This commit is contained in:
NAKAMURA Gou
2016-03-28 14:42:49 +09:00
parent a587c8f5e5
commit 41bb2ab5e6
17 changed files with 689 additions and 18 deletions
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27
executer/user/mcexec.c
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@ -63,6 +63,7 @@
#include <include/generated/uapi/linux/version.h>
#include <sys/user.h>
#include "../include/uprotocol.h"
#include <getopt.h>
//#define DEBUG
@ -132,6 +133,7 @@ static char *exec_path = NULL;
static char *altroot;
static const char rlimit_stack_envname[] = "MCKERNEL_RLIMIT_STACK";
static int ischild;
static int enable_vdso = 1;
struct fork_sync {
pid_t pid;
@ -1231,6 +1233,24 @@ static int rlimits[] = {
char dev[64];
static struct option mcexec_options[] = {
{
.name = "disable-vdso",
.has_arg = no_argument,
.flag = &enable_vdso,
.val = 0,
},
{
.name = "enable-vdso",
.has_arg = no_argument,
.flag = &enable_vdso,
.val = 1,
},
/* end */
{ NULL, 0, NULL, 0, },
};
int main(int argc, char **argv)
{
// int fd;
@ -1282,12 +1302,15 @@ int main(int argc, char **argv)
}
/* Parse options ("+" denotes stop at the first non-option) */
while ((opt = getopt(argc, argv, "+c:")) != -1) {
while ((opt = getopt_long(argc, argv, "+c:", mcexec_options, NULL)) != -1) {
switch (opt) {
case 'c':
target_core = atoi(optarg);
break;
case 0: /* long opt */
break;
default: /* '?' */
print_usage(argv);
exit(EXIT_FAILURE);
@ -1416,6 +1439,8 @@ int main(int argc, char **argv)
//print_flat(args);
desc->cpu = target_core;
desc->enable_vdso = enable_vdso;
p = getenv(rlimit_stack_envname);
if (p) {
errno = 0;