linux-kernel - Re: uuid define issue build on macos

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Message-ID: <CAFA6WYPQWvVhjPjs9gueSvSn=EYcDBh7XGU+7te09-rmiWEvGw@mail.gmail.com>
Date:   Mon, 8 Jul 2019 16:56:52 +0530
From:   Sumit Garg <sumit.garg@...aro.org>
To:     feng chen <puck.chen@...mail.com>
Cc:     Masahiro Yamada <yamada.masahiro@...ionext.com>,
        Michal Marek <michal.lkml@...kovi.net>,
        linux-kbuild@...r.kernel.org,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: uuid define issue build on macos

On Sun, 7 Jul 2019 at 08:27, feng chen <puck.chen@...mail.com> wrote:
>
> *** Default configuration is based on 'defconfig'
> #
> # No change to .config
> #
> arch/arm64/Makefile:40: LSE atomics not supported by binutils
> arch/arm64/Makefile:48: Detected assembler with broken .inst;
> disassembly will be unreliable
>    UPD     include/config/kernel.release
>    UPD     include/generated/utsrelease.h
>    HOSTCC  scripts/mod/file2alias.o
> scripts/mod/file2alias.c:42:3: error: typedef redefinition with
> different types ('struct uuid_t' vs '__darwin_uuid_t' (aka 'unsigned
> char [16]'))
> } uuid_t;
>    ^

It looks like somehow Darwin OS specific header is included here for
UUID definition. Please try to build with following change to include
only standardized headers:

--- a/scripts/mod/file2alias.c
+++ b/scripts/mod/file2alias.c
@@ -10,6 +10,7 @@
  * of the GNU General Public License, incorporated herein by reference.
  */

+#define _XOPEN_SOURCE
 #include "modpost.h"
 #include "devicetable-offsets.h"

-Sumit

>
/Library/Developer/CommandLineTools/SDKs/MacOSX10.14.sdk/usr/include/sys/_types/_uuid_t.h:31:25:
> note: previous definition is here
> typedef __darwin_uuid_t uuid_t;
>                          ^
> scripts/mod/file2alias.c:1300:42: error: array initializer must be an
> initializer list or string literal
>          DEF_FIELD(symval, tee_client_device_id, uuid);
>                                                  ^
> 2 errors generated.
> make[2]: *** [scripts/mod/file2alias.o] Error 1
> make[1]: *** [prepare0] Error 2
> make: *** [sub-make] Error 2
>
> and:
>
> _types.h:77:typedef unsigned char   __darwin_uuid_t[16];
>
>   28 #ifndef _UUID_T
>   29 #define _UUID_T
>   30 #include <sys/_types.h> /* __darwin_uuid_t */
>   31 typedef __darwin_uuid_t uuid_t;
>
>
>   32 #endif /* _UUID_T */
>
>
>