Merge tag 'linux_kselftest-nolibc-6.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest

Pull nolibc updates from Shuah Khan:

 - Support for PIC mode on MIPS

 - Support for getrlimit()/setrlimit()

 - Replace some custom declarations with UAPI includes

 - A new script "run-tests.sh" to run the testsuite over different
   architectures and configurations

 - A few non-functional code cleanups

 - Minor improvements to nolibc-test, primarily to support the test
   script

* tag 'linux_kselftest-nolibc-6.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest: (22 commits)
  selftests/nolibc: disable coredump via setrlimit
  tools/nolibc: add support for getrlimit/setrlimit
  tools/nolibc: drop custom definition of struct rusage
  tools/nolibc: drop duplicated testcase ioctl_tiocinq
  tools/nolibc: annotate va_list printf formats
  selftests/nolibc: make result alignment more robust
  tools/nolibc: mips: add support for PIC
  selftests/nolibc: run-tests.sh: enable testing via qemu-user
  selftests/nolibc: introduce QEMU_ARCH_USER
  selftests/nolibc: fix testcase status alignment
  selftests/nolibc: add configuration for mipso32be
  selftests/nolibc: extraconfig support
  selftests/nolibc: explicitly specify ABI for MIPS
  selftests/nolibc: use XARCH for MIPS
  tools/nolibc: move MIPS ABI validation into arch-mips.h
  tools/nolibc: error out on unsupported architecture
  selftests/nolibc: add script to run testsuite
  selftests/nolibc: support out-of-tree builds
  selftests/nolibc: anchor paths in $(srcdir) if possible
  selftests/nolibc: use EFI -bios for LoongArch qemu
  ...

1 files changed, 38 insertions, 0 deletions

diff --git a/tools/include/nolibc/sys.h b/tools/include/nolibc/sys.h
index 2f359cb03d10..dda9dffd1d74 100644
--- a/tools/include/nolibc/sys.h
+++ b/tools/include/nolibc/sys.h
@@ -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"
@@ -899,6 +900,43 @@ 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);
  */