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Message-Id: <20250515-nolibc-sys-v1-5-74f82eea3b59@weissschuh.net>
Date: Thu, 15 May 2025 21:57:51 +0200
From: Thomas Weißschuh <linux@...ssschuh.net>
To: Willy Tarreau <w@....eu>, Shuah Khan <shuah@...nel.org>
Cc: linux-kernel@...r.kernel.org, linux-kselftest@...r.kernel.org,
Thomas Weißschuh <linux@...ssschuh.net>
Subject: [PATCH 5/9] tools/nolibc: move getrlimit() and friends to
sys/resource.h
This is the location regular userspace expects these definitions.
Signed-off-by: Thomas Weißschuh <linux@...ssschuh.net>
---
tools/include/nolibc/Makefile | 1 +
tools/include/nolibc/nolibc.h | 1 +
tools/include/nolibc/sys.h | 38 --------------------------
tools/include/nolibc/sys/resource.h | 53 +++++++++++++++++++++++++++++++++++++
tools/include/nolibc/types.h | 1 -
5 files changed, 55 insertions(+), 39 deletions(-)
diff --git a/tools/include/nolibc/Makefile b/tools/include/nolibc/Makefile
index 4850501b8d53be6b603ecbb04d6f952cd5370cf0..cc82399e940e53940061b60588566db51f2e191a 100644
--- a/tools/include/nolibc/Makefile
+++ b/tools/include/nolibc/Makefile
@@ -55,6 +55,7 @@ all_files := \
sys/prctl.h \
sys/random.h \
sys/reboot.h \
+ sys/resource.h \
sys/stat.h \
sys/syscall.h \
sys/time.h \
diff --git a/tools/include/nolibc/nolibc.h b/tools/include/nolibc/nolibc.h
index 36ea7a02c7434cc006a7b12d413add04a2f85565..7d151776e47a30080dc3d961bcdeacd6ab558629 100644
--- a/tools/include/nolibc/nolibc.h
+++ b/tools/include/nolibc/nolibc.h
@@ -103,6 +103,7 @@
#include "sys/prctl.h"
#include "sys/random.h"
#include "sys/reboot.h"
+#include "sys/resource.h"
#include "sys/stat.h"
#include "sys/syscall.h"
#include "sys/time.h"
diff --git a/tools/include/nolibc/sys.h b/tools/include/nolibc/sys.h
index 6c89dd0316dd0ebf03ebde6fa5c14273df6a0c62..282909b1992d17d5292917fbabb0bd2a2dbfce88 100644
--- a/tools/include/nolibc/sys.h
+++ b/tools/include/nolibc/sys.h
@@ -23,7 +23,6 @@
#include <linux/auxvec.h>
#include <linux/fcntl.h> /* for O_* and AT_* */
#include <linux/stat.h> /* for statx() */
-#include <linux/resource.h>
#include <linux/utsname.h>
#include "errno.h"
@@ -730,43 +729,6 @@ ssize_t read(int fd, void *buf, size_t count)
}
-/*
- * 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);
*/
diff --git a/tools/include/nolibc/sys/resource.h b/tools/include/nolibc/sys/resource.h
new file mode 100644
index 0000000000000000000000000000000000000000..ac2705a67e8b3abacffa57f097095b98afa1469c
--- /dev/null
+++ b/tools/include/nolibc/sys/resource.h
@@ -0,0 +1,53 @@
+/* SPDX-License-Identifier: LGPL-2.1 OR MIT */
+/*
+ * Resource definitions for NOLIBC
+ * Copyright (C) 2017-2021 Willy Tarreau <w@....eu>
+ */
+
+/* make sure to include all global symbols */
+#include "nolibc.h"
+
+#ifndef _NOLIBC_SYS_RESOURCE_H
+#define _NOLIBC_SYS_RESOURCE_H
+
+#include "../sys.h"
+
+#include <linux/resource.h>
+
+/*
+ * 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));
+}
+
+#endif /* _NOLIBC_SYS_RESOURCE_H */
diff --git a/tools/include/nolibc/types.h b/tools/include/nolibc/types.h
index 74c7694b2d5e54f7a86854697ac32a2ea2b62e86..2225c9388a46480a18e9ce603b08d846e5276bab 100644
--- a/tools/include/nolibc/types.h
+++ b/tools/include/nolibc/types.h
@@ -15,7 +15,6 @@
#include <linux/stat.h>
#include <linux/time.h>
#include <linux/wait.h>
-#include <linux/resource.h>
/* Only the generic macros and types may be defined here. The arch-specific
--
2.49.0
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