| 123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869 |
- diff --git a/include/linux/compiler-gcc7.h b/include/linux/compiler-gcc7.h
- new file mode 100644
- index 0000000..ba064fa
- --- /dev/null
- +++ b/include/linux/compiler-gcc7.h
- @@ -0,0 +1,59 @@
- +#ifndef __LINUX_COMPILER_H
- +#error "Please don't include <linux/compiler-gcc7.h> directly, include <linux/compiler.h> instead."
- +#endif
- +
- +#define __used __attribute__((__used__))
- +#define __must_check __attribute__((warn_unused_result))
- +#define __compiler_offsetof(a, b) __builtin_offsetof(a, b)
- +
- +/* Mark functions as cold. gcc will assume any path leading to a call
- + to them will be unlikely. This means a lot of manual unlikely()s
- + are unnecessary now for any paths leading to the usual suspects
- + like BUG(), printk(), panic() etc. [but let's keep them for now for
- + older compilers]
- +
- + gcc also has a __attribute__((__hot__)) to move hot functions into
- + a special section, but I don't see any sense in this right now in
- + the kernel context */
- +#define __cold __attribute__((__cold__))
- +
- +#define __UNIQUE_ID(prefix) __PASTE(__PASTE(__UNIQUE_ID_, prefix), __COUNTER__)
- +
- +#ifndef __CHECKER__
- +# define __compiletime_warning(message) __attribute__((warning(message)))
- +# define __compiletime_error(message) __attribute__((error(message)))
- +#endif /* __CHECKER__ */
- +
- +/*
- + * Mark a position in code as unreachable. This can be used to
- + * suppress control flow warnings after asm blocks that transfer
- + * control elsewhere.
- + */
- +#define unreachable() __builtin_unreachable()
- +
- +/* Mark a function definition as prohibited from being cloned. */
- +#define __noclone __attribute__((__noclone__))
- +
- +/*
- + * Tell the optimizer that something else uses this function or variable.
- + */
- +#define __visible __attribute__((externally_visible))
- +
- +/*
- + * GCC 'asm goto' miscompiles certain code sequences:
- + *
- + * http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58670
- + *
- + * Work it around via a compiler barrier quirk suggested by Jakub Jelinek.
- + *
- + * (asm goto is automatically volatile - the naming reflects this.)
- + */
- +#define asm_volatile_goto(x...) do { asm goto(x); asm (""); } while (0)
- +
- +#ifdef CONFIG_ARCH_USE_BUILTIN_BSWAP
- +#define __HAVE_BUILTIN_BSWAP32__
- +#define __HAVE_BUILTIN_BSWAP64__
- +#define __HAVE_BUILTIN_BSWAP16__
- +#endif /* CONFIG_ARCH_USE_BUILTIN_BSWAP */
- +
- +#define KASAN_ABI_VERSION 4
- --
- 2.1.4
|
