summaryrefslogtreecommitdiff
path: root/tools/include/linux/compiler-gcc.h
diff options
context:
space:
mode:
Diffstat (limited to 'tools/include/linux/compiler-gcc.h')
-rw-r--r--tools/include/linux/compiler-gcc.h42
1 files changed, 42 insertions, 0 deletions
diff --git a/tools/include/linux/compiler-gcc.h b/tools/include/linux/compiler-gcc.h
new file mode 100644
index 000000000000..e20f98e14e81
--- /dev/null
+++ b/tools/include/linux/compiler-gcc.h
@@ -0,0 +1,42 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _TOOLS_LINUX_COMPILER_H_
+#error "Please do not include <linux/compiler-gcc.h> directly, include <linux/compiler.h> instead."
+#endif
+
+/*
+ * Common definitions for all gcc versions go here.
+ */
+#ifndef GCC_VERSION
+#define GCC_VERSION (__GNUC__ * 10000 \
+ + __GNUC_MINOR__ * 100 \
+ + __GNUC_PATCHLEVEL__)
+#endif
+
+#if __has_attribute(__fallthrough__)
+# define fallthrough __attribute__((__fallthrough__))
+#else
+# define fallthrough do {} while (0) /* fallthrough */
+#endif
+
+#if __has_attribute(__error__)
+# define __compiletime_error(message) __attribute__((error(message)))
+#endif
+
+/* &a[0] degrades to a pointer: a different type from an array */
+#define __must_be_array(a) BUILD_BUG_ON_ZERO(__same_type((a), &(a)[0]))
+
+#ifndef __pure
+#define __pure __attribute__((pure))
+#endif
+#define noinline __attribute__((noinline))
+#ifndef __packed
+#define __packed __attribute__((packed))
+#endif
+#ifndef __noreturn
+#define __noreturn __attribute__((noreturn))
+#endif
+#ifndef __aligned
+#define __aligned(x) __attribute__((aligned(x)))
+#endif
+#define __printf(a, b) __attribute__((format(printf, a, b)))
+#define __scanf(a, b) __attribute__((format(scanf, a, b)))