Hi.
On Thu, 8 May 2014 14:49:35 +0300
Vasili Galka <vvv...@gmail.com> wrote:
> Hi,
>
> I'm building u-boot (am335x_evm config) using arm-none-eabi toolchain
> under Cygwin. When trying to build unmodified v2014.04 tag I get some
> errors. However, if I remove the "-ansi" flag from the Makefile,
> everything builds fine:
>
> -ifeq ($(HOSTOS),cygwin)
> -HOSTCFLAGS += -ansi
> -endif
>
> I tried tracking down where those lines came from and why building
> under Cygwin requires separate treatment. I found our this originates
> from the following commit (dated Jan 2008):
>
> SHA-1: 883e3925d99a8dd69c5b0201cba5b1887f88f95c
>
> * Fix build problems under Cygwin
>
> This patch allows u-boot to build without error in a cygwin
> environment. Cygwin does not define __u64 in it's
> include/asm/types.h file. The -idirafter flag in the u-boot
> build causes the inclusion of the cygwin types.h file as opposed
> to u-bot/include/asm/types.h file which does define __u64.
> Subsequently, sha1.c compile fails due to unknown symbol.
>
> Signed-off-by: Brian Miller <raptorbr...@netscape.net>
>
> This comment does not really explain why "-ansi" flag is required.
> Personally, I don't see any reason for it.
>
> Maybe it should be removed at all?
>
As far as I tested, missing __u64 error occurred
when I tried to build host tools on Cygwin,
regardless with/without -ansi option.
This is my build log:
GEN include/autoconf.mk.dep
GEN include/autoconf.mk
CHK include/config/uboot.release
CHK include/generated/version_autogenerated.h
CHK include/generated/timestamp_autogenerated.h
UPD include/generated/timestamp_autogenerated.h
HOSTCC scripts/basic/fixdep
scripts/basic/fixdep.c: In function 'parse_config_file':
scripts/basic/fixdep.c:255:4: warning: array subscript has type 'char'
[-Wchar-subscripts]
if (!(isalnum(*q) || *q == '_'))
^
CC lib/asm-offsets.s
GEN include/generated/generic-asm-offsets.h
HOSTCC tools/img2srec
In file included from /home/yamada/workspace/u-boot/include/libfdt_env.h:13:0,
from <command-line>:0:
/home/yamada/workspace/u-boot/include/linux/types.h:135:1: error: unknown type
name '__u64'
typedef __u64 __bitwise __le64;
^
/home/yamada/workspace/u-boot/include/linux/types.h:136:1: error: unknown type
name '__u64'
typedef __u64 __bitwise __be64;
^
scripts/Makefile.host:118: recipe for target 'tools/img2srec' failed
make[1]: *** [tools/img2srec] Error 1
Makefile:1022: recipe for target 'tools' failed
make: *** [tools] Error 2
/usr/include/asm/types.h on my Cygwin is like this:
------------------------------->8----------------------
/* asm/types.h
Copyright 1998, 2000, 2001 Red Hat, Inc.
This file is part of Cygwin.
This software is a copyrighted work licensed under the terms of the
Cygwin license. Please consult the file "CYGWIN_LICENSE" for
details. */
#ifndef _ASM_TYPES_H
#define _ASM_TYPES_H
typedef __signed__ char __s8;
typedef unsigned char __u8;
typedef __signed__ short __s16;
typedef unsigned short __u16;
typedef __signed__ int __s32;
typedef unsigned int __u32;
#endif /* _ASM_TYPES_H */
-----------------------------8<-----------------------------
Best Regards
Masahiro Yamada
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