tmakin/tegra-linux-noble
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

tools/nolibc: add support for getrlimit/setrlimit

Browse Source 
The implementation uses the prlimit64 systemcall as that is available on
all architectures.

Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
Link: https://lore.kernel.org/lkml/20231123-nolibc-rlimit-v1-2-a428b131de2a@weissschuh.net/
Acked-by: Willy Tarreau <w@1wt.eu>
This commit is contained in:
Thomas Weißschuh
2023-11-22 23:49:43 +01:00
parent 7b20478b77
commit a0bb5f88fc
2 changed files with 67 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files
tools/include/nolibc/sys.h
+38
View File
@@ -21,6 +21,7 @@
#include <linux/fcntl.h> /* for O_* and AT_* */
#include <linux/stat.h> /* for statx() */
#include <linux/prctl.h>
#include <linux/resource.h>
#include "arch.h"
#include "errno.h"
@@ -898,6 +899,43 @@ int reboot(int cmd)
}
/*
* int getrlimit(int resource, struct rlimit *rlim);
* int setrlimit(int resource, const struct rlimit *rlim);
*/
static __attribute__((unused))
int sys_prlimit64(pid_t pid, int resource,
const struct rlimit64 *new_limit, struct rlimit64 *old_limit)
{
return my_syscall4(__NR_prlimit64, pid, resource, new_limit, old_limit);
}
static __attribute__((unused))
int getrlimit(int resource, struct rlimit *rlim)
{
struct rlimit64 rlim64;
int ret;
ret = __sysret(sys_prlimit64(0, resource, NULL, &rlim64));
rlim->rlim_cur = rlim64.rlim_cur;
rlim->rlim_max = rlim64.rlim_max;
return ret;
}
static __attribute__((unused))
int setrlimit(int resource, const struct rlimit *rlim)
{
struct rlimit64 rlim64 = {
.rlim_cur = rlim->rlim_cur,
.rlim_max = rlim->rlim_max,
};
return __sysret(sys_prlimit64(0, resource, &rlim64, NULL));
}
/*
* int sched_yield(void);
*/