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https://github.com/AsahiLinux/u-boot
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9312bba01a
Commit 37566090 "compiler.h: unify system ifdef cruft here" added both
a "#include <errno.h>" and a "extern int errno;" to include/compiler.h
which is causing build warnings for some systems, for example for the
"netstar" board:
In file included from /home/wd/git/u-boot/work/lib/crc32.c:15:
include/compiler.h:28: warning: function declaration isn't a prototype
The declaration of "errno" should be redundant, as <errno.h> is
supposed to provide a correct declaration, so drop it.
Signed-off-by: Wolfgang Denk <wd@denx.de>
Cc: Mike Frysinger <vapier@gentoo.org>
130 lines
3.1 KiB
C
130 lines
3.1 KiB
C
/*
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* Keep all the ugly #ifdef for system stuff here
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*/
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#ifndef __COMPILER_H__
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#define __COMPILER_H__
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#include <stddef.h>
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#ifdef USE_HOSTCC
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#if defined(__BEOS__) || \
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defined(__NetBSD__) || \
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defined(__FreeBSD__) || \
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defined(__sun__) || \
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defined(__APPLE__)
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# include <inttypes.h>
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#elif defined(__linux__) || defined(__WIN32__) || defined(__MINGW32__)
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# include <stdint.h>
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#endif
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#include <errno.h>
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#include <stdlib.h>
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#include <stdint.h>
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#include <stdio.h>
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#include <string.h>
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#if !defined(__WIN32__) && !defined(__MINGW32__)
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# include <sys/mman.h>
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#endif
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/* Not all systems (like Windows) has this define, and yes
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* we do replace/emulate mmap() on those systems ...
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*/
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#ifndef MAP_FAILED
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# define MAP_FAILED ((void *)-1)
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#endif
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#include <fcntl.h>
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#ifndef O_BINARY /* should be define'd on __WIN32__ */
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#define O_BINARY 0
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#endif
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#ifdef __linux__
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# include <endian.h>
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# include <byteswap.h>
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#elif defined(__MACH__)
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# include <machine/endian.h>
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typedef unsigned long ulong;
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typedef unsigned int uint;
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#endif
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typedef uint8_t __u8;
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typedef uint16_t __u16;
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typedef uint32_t __u32;
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typedef unsigned int uint;
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#define uswap_16(x) \
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((((x) & 0xff00) >> 8) | \
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(((x) & 0x00ff) << 8))
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#define uswap_32(x) \
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((((x) & 0xff000000) >> 24) | \
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(((x) & 0x00ff0000) >> 8) | \
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(((x) & 0x0000ff00) << 8) | \
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(((x) & 0x000000ff) << 24))
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#define _uswap_64(x, sfx) \
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((((x) & 0xff00000000000000##sfx) >> 56) | \
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(((x) & 0x00ff000000000000##sfx) >> 40) | \
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(((x) & 0x0000ff0000000000##sfx) >> 24) | \
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(((x) & 0x000000ff00000000##sfx) >> 8) | \
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(((x) & 0x00000000ff000000##sfx) << 8) | \
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(((x) & 0x0000000000ff0000##sfx) << 24) | \
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(((x) & 0x000000000000ff00##sfx) << 40) | \
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(((x) & 0x00000000000000ff##sfx) << 56))
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#if defined(__GNUC__)
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# define uswap_64(x) _uswap_64(x, ull)
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#else
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# define uswap_64(x) _uswap_64(x, )
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#endif
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#if __BYTE_ORDER == __LITTLE_ENDIAN
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# define cpu_to_le16(x) (x)
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# define cpu_to_le32(x) (x)
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# define cpu_to_le64(x) (x)
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# define le16_to_cpu(x) (x)
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# define le32_to_cpu(x) (x)
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# define le64_to_cpu(x) (x)
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# define cpu_to_be16(x) uswap_16(x)
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# define cpu_to_be32(x) uswap_32(x)
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# define cpu_to_be64(x) uswap_64(x)
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# define be16_to_cpu(x) uswap_16(x)
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# define be32_to_cpu(x) uswap_32(x)
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# define be64_to_cpu(x) uswap_64(x)
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#else
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# define cpu_to_le16(x) uswap_16(x)
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# define cpu_to_le32(x) uswap_32(x)
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# define cpu_to_le64(x) uswap_64(x)
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# define le16_to_cpu(x) uswap_16(x)
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# define le32_to_cpu(x) uswap_32(x)
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# define le64_to_cpu(x) uswap_64(x)
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# define cpu_to_be16(x) (x)
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# define cpu_to_be32(x) (x)
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# define cpu_to_be64(x) (x)
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# define be16_to_cpu(x) (x)
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# define be32_to_cpu(x) (x)
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# define be64_to_cpu(x) (x)
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#endif
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#else /* !USE_HOSTCC */
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#include <linux/string.h>
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#include <linux/types.h>
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#include <asm/byteorder.h>
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/* Types for `void *' pointers. */
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#if __WORDSIZE == 64
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typedef unsigned long int uintptr_t;
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#else
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typedef unsigned int uintptr_t;
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#endif
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#endif
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/* compiler options */
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#define uninitialized_var(x) x = x
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#define likely(x) __builtin_expect(!!(x), 1)
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#define unlikely(x) __builtin_expect(!!(x), 0)
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#endif
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