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authorVincenzo Frascino <vincenzo.frascino@arm.com>2020-03-20 14:53:28 +0000
committerThomas Gleixner <tglx@linutronix.de>2020-03-21 15:23:54 +0100
commit3e0e9f8c6e3ca92154a74edc23a8872da921d2b6 (patch)
tree9ce91eabec85820d9c904df412916252a94cded3 /include/vdso
parent3945ff37d2f48d39fd1751d282c80176654049e4 (diff)
linux/limits.h: Extract common header for vDSO
The vDSO library should only include the necessary headers required for a userspace library (UAPI and a minimal set of kernel headers). To make this possible it is necessary to isolate from the kernel headers the common parts that are strictly necessary to build the library. Split limits.h into linux and common headers to make the latter suitable for inclusion in the vDSO library. Signed-off-by: Vincenzo Frascino <vincenzo.frascino@arm.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Link: https://lkml.kernel.org/r/20200320145351.32292-4-vincenzo.frascino@arm.com
Diffstat (limited to 'include/vdso')
-rw-r--r--include/vdso/limits.h19
1 files changed, 19 insertions, 0 deletions
diff --git a/include/vdso/limits.h b/include/vdso/limits.h
new file mode 100644
index 000000000000..0197888ad0e0
--- /dev/null
+++ b/include/vdso/limits.h
@@ -0,0 +1,19 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __VDSO_LIMITS_H
+#define __VDSO_LIMITS_H
+
+#define USHRT_MAX ((unsigned short)~0U)
+#define SHRT_MAX ((short)(USHRT_MAX >> 1))
+#define SHRT_MIN ((short)(-SHRT_MAX - 1))
+#define INT_MAX ((int)(~0U >> 1))
+#define INT_MIN (-INT_MAX - 1)
+#define UINT_MAX (~0U)
+#define LONG_MAX ((long)(~0UL >> 1))
+#define LONG_MIN (-LONG_MAX - 1)
+#define ULONG_MAX (~0UL)
+#define LLONG_MAX ((long long)(~0ULL >> 1))
+#define LLONG_MIN (-LLONG_MAX - 1)
+#define ULLONG_MAX (~0ULL)
+#define UINTPTR_MAX ULONG_MAX
+
+#endif /* __VDSO_LIMITS_H */

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