[PATCH v2 2/8] file2alias: fix uuid_t definitions for macos

Masahiro Yamada masahiroy at kernel.org
Sat Sep 7 23:56:08 UTC 2024


On Fri, Sep 6, 2024 at 8:01 PM Daniel Gomez via B4 Relay
<devnull+da.gomez.samsung.com at kernel.org> wrote:
>
> From: Daniel Gomez <da.gomez at samsung.com>
>
> The uuid_t struct defined in sys/types.h on macOS hosts conflicts with
> the one defined in file2alias, resulting in the typedef redefinition
> error below. To resolve this conflict, define the _UUID_T and
> __GETHOSTUUID_ in file2alias HOSTCFLAGS.
>
> Error:
>   HOSTCC  scripts/mod/file2alias.o scripts/mod/file2alias.c:45:3:
> error: typedef redefinition with different types ('struct uuid_t' vs
> '__darwin_uuid_t' (aka 'unsigned char[16]'))    45 | } uuid_t;       |
> ^
> /Library/Developer/CommandLineTools/SDKs/MacOSX14.sdk/usr/include/
>    sys/_types/_uuid_t.h:31:25: note: previous definition is here 31 |
>    typedef __darwin_uuid_t uuid_t;    |                         ^
> scripts/mod/file2alias.c:1354:7: error: member reference base
>  type 'typeof (((struct tee_client_device_id *)0)->uuid)' (aka
>  'unsigned char[16]') is not a structure or union 1354 |
>  uuid->b[0], uuid->b[1], uuid->b[2], uuid->b[3], uuid->b[4],      |
>  ~~~~^ ~
> /Library/Developer/CommandLineTools/SDKs/MacOSX14.sdk/usr/include/
>    secure/_stdio.h:47:56: note: expanded from macro 'sprintf' 47 |
>    __builtin___sprintf_chk (str, 0, __darwin_obsz(str), __VA_ARGS__)
>    |                                                        ^~~~~~~~~~~
> scripts/mod/file2alias.c:1354:19: error: member reference base
>  type 'typeof (((struct tee_client_device_id *)0)->uuid)' (aka
>  'unsigned char[16]') is not a structure or union 1354 |
>  uuid->b[0], uuid->b[1], uuid->b[2], uuid->b[3], uuid->b[4],      |
>  ~~~~^ ~
> /Library/Developer/CommandLineTools/SDKs/MacOSX14.sdk/usr/include/
>    secure/_stdio.h:47:56: note: expanded from macro 'sprintf' 47 |
>    __builtin___sprintf_chk (str, 0, __darwin_obsz(str), __VA_ARGS__)
>    |                                                        ^~~~~~~~~~~
> scripts/mod/file2alias.c:1354:31: error: member reference base
>  type 'typeof (((struct tee_client_device_id *)0)->uuid)' (aka
>  'unsigned char[16]') is not a structure or union 1354 |
>  uuid->b[0], uuid->b[1], uuid->b[2], uuid->b[3], uuid->b[4],      |
>  ~~~~^ ~
> /Library/Developer/CommandLineTools/SDKs/MacOSX14.sdk/usr/include/
>    secure/_stdio.h:47:56: note: expanded from macro 'sprintf' 47 |
>    __builtin___sprintf_chk (str, 0, __darwin_obsz(str), __VA_ARGS__)
>    |                                                        ^~~~~~~~~~~
> scripts/mod/file2alias.c:1354:43: error: member reference base
>  type 'typeof (((struct tee_client_device_id *)0)->uuid)' (aka
>  'unsigned char[16]') is not a structure or union 1354 |
>  uuid->b[0], uuid->b[1], uuid->b[2], uuid->b[3], uuid->b[4],      |
>  ~~~~^ ~
> /Library/Developer/CommandLineTools/SDKs/MacOSX14.sdk/usr/include/
>    secure/_stdio.h:47:56: note: expanded from macro 'sprintf' 47 |
>    __builtin___sprintf_chk (str, 0, __darwin_obsz(str), __VA_ARGS__)
>    |                                                        ^~~~~~~~~~~
> scripts/mod/file2alias.c:1354:55: error: member reference base
>  type 'typeof (((struct tee_client_device_id *)0)->uuid)' (aka
>  'unsigned char[16]') is not a structure or union 1354 |
>  uuid->b[0], uuid->b[1], uuid->b[2], uuid->b[3], uuid->b[4],      |
>  ~~~~^ ~
> /Library/Developer/CommandLineTools/SDKs/MacOSX14.sdk/usr/include/
>    secure/_stdio.h:47:56: note: expanded from macro 'sprintf' 47 |
>    __builtin___sprintf_chk (str, 0, __darwin_obsz(str), __VA_ARGS__)
>    |                                                        ^~~~~~~~~~~
> scripts/mod/file2alias.c:1355:7: error: member reference base
>  type 'typeof (((struct tee_client_device_id *)0)->uuid)' (aka
>  'unsigned char[16]') is not a structure or union 1355 |
>  uuid->b[5], uuid->b[6], uuid->b[7], uuid->b[8], uuid->b[9],      |
>  ~~~~^ ~
> /Library/Developer/CommandLineTools/SDKs/MacOSX14.sdk/usr/include/
>    secure/_stdio.h:47:56: note: expanded from macro 'sprintf' 47 |
>    __builtin___sprintf_chk (str, 0, __darwin_obsz(str), __VA_ARGS__)
>    |                                                        ^~~~~~~~~~~
> scripts/mod/file2alias.c:1355:19: error: member reference base
>  type 'typeof (((struct tee_client_device_id *)0)->uuid)' (aka
>  'unsigned char[16]') is not a structure or union 1355 |
>  uuid->b[5], uuid->b[6], uuid->b[7], uuid->b[8], uuid->b[9],      |
>  ~~~~^ ~
> /Library/Developer/CommandLineTools/SDKs/MacOSX14.sdk/usr/include/
>    secure/_stdio.h:47:56: note: expanded from macro 'sprintf' 47 |
>    __builtin___sprintf_chk (str, 0, __darwin_obsz(str), __VA_ARGS__)
>    |                                                        ^~~~~~~~~~~
> scripts/mod/file2alias.c:1355:31: error: member reference base
>  type 'typeof (((struct tee_client_device_id *)0)->uuid)' (aka
>  'unsigned char[16]') is not a structure or union 1355 |
>  uuid->b[5], uuid->b[6], uuid->b[7], uuid->b[8], uuid->b[9],      |
>  ~~~~^ ~
> /Library/Developer/CommandLineTools/SDKs/MacOSX14.sdk/usr/include/
>    secure/_stdio.h:47:56: note: expanded from macro 'sprintf' 47 |
>    __builtin___sprintf_chk (str, 0, __darwin_obsz(str), __VA_ARGS__)
>    |                                                        ^~~~~~~~~~~
> scripts/mod/file2alias.c:1355:43: error: member reference base
>  type 'typeof (((struct tee_client_device_id *)0)->uuid)' (aka
>  'unsigned char[16]') is not a structure or union 1355 |
>  uuid->b[5], uuid->b[6], uuid->b[7], uuid->b[8], uuid->b[9],      |
>  ~~~~^ ~
> /Library/Developer/CommandLineTools/SDKs/MacOSX14.sdk/usr/include/
>    secure/_stdio.h:47:56: note: expanded from macro 'sprintf' 47 |
>    __builtin___sprintf_chk (str, 0, __darwin_obsz(str), __VA_ARGS__)
>    |                                                        ^~~~~~~~~~~
> scripts/mod/file2alias.c:1355:55: error: member reference base
>  type 'typeof (((struct tee_client_device_id *)0)->uuid)' (aka
>  'unsigned char[16]') is not a structure or union 1355 |
>  uuid->b[5], uuid->b[6], uuid->b[7], uuid->b[8], uuid->b[9],      |
>  ~~~~^ ~
> /Library/Developer/CommandLineTools/SDKs/MacOSX14.sdk/usr/include/
>    secure/_stdio.h:47:56: note: expanded from macro 'sprintf' 47 |
>    __builtin___sprintf_chk (str, 0, __darwin_obsz(str), __VA_ARGS__)
>    |                                                        ^~~~~~~~~~~
> scripts/mod/file2alias.c:1356:7: error: member reference base
>  type 'typeof (((struct tee_client_device_id *)0)->uuid)' (aka
>  'unsigned char[16]') is not a structure or union 1356 |
>  uuid->b[10], uuid->b[11], uuid->b[12], uuid->b[13], uuid->b[14],      |
>  ~~~~^ ~
> /Library/Developer/CommandLineTools/SDKs/MacOSX14.sdk/usr/include/
>    secure/_stdio.h:47:56: note: expanded from macro 'sprintf' 47 |
>    __builtin___sprintf_chk (str, 0, __darwin_obsz(str), __VA_ARGS__)
>    |                                                        ^~~~~~~~~~~
> scripts/mod/file2alias.c:1356:20: error: member reference base
>  type 'typeof (((struct tee_client_device_id *)0)->uuid)' (aka
>  'unsigned char[16]') is not a structure or union 1356 |
>  uuid->b[10], uuid->b[11], uuid->b[12], uuid->b[13], uuid->b[14],      |
>  ~~~~^ ~
> /Library/Developer/CommandLineTools/SDKs/MacOSX14.sdk/usr/include/
>    secure/_stdio.h:47:56: note: expanded from macro 'sprintf' 47 |
>    __builtin___sprintf_chk (str, 0, __darwin_obsz(str), __VA_ARGS__)
>    |                                                        ^~~~~~~~~~~
> scripts/mod/file2alias.c:1356:33: error: member reference base
>  type 'typeof (((struct tee_client_device_id *)0)->uuid)' (aka
>  'unsigned char[16]') is not a structure or union 1356 |
>  uuid->b[10], uuid->b[11], uuid->b[12], uuid->b[13], uuid->b[14],      |
>  ~~~~^ ~
> /Library/Developer/CommandLineTools/SDKs/MacOSX14.sdk/usr/include/
>    secure/_stdio.h:47:56: note: expanded from macro 'sprintf' 47 |
>    __builtin___sprintf_chk (str, 0, __darwin_obsz(str), __VA_ARGS__)
>    |                                                        ^~~~~~~~~~~
> scripts/mod/file2alias.c:1356:46: error: member reference base
>  type 'typeof (((struct tee_client_device_id *)0)->uuid)' (aka
>  'unsigned char[16]') is not a structure or union 1356 |
>  uuid->b[10], uuid->b[11], uuid->b[12], uuid->b[13], uuid->b[14],      |
>  ~~~~^ ~
> /Library/Developer/CommandLineTools/SDKs/MacOSX14.sdk/usr/include/
>    secure/_stdio.h:47:56: note: expanded from macro 'sprintf' 47 |
>    __builtin___sprintf_chk (str, 0, __darwin_obsz(str), __VA_ARGS__)
>    |                                                        ^~~~~~~~~~~
> scripts/mod/file2alias.c:1356:59: error: member reference base
>  type 'typeof (((struct tee_client_device_id *)0)->uuid)' (aka
>  'unsigned char[16]') is not a structure or union 1356 |
>  uuid->b[10], uuid->b[11], uuid->b[12], uuid->b[13], uuid->b[14],      |
>  ~~~~^ ~
> /Library/Developer/CommandLineTools/SDKs/MacOSX14.sdk/usr/include/
>    secure/_stdio.h:47:56: note: expanded from macro 'sprintf' 47 |
>    __builtin___sprintf_chk (str, 0, __darwin_obsz(str), __VA_ARGS__)
>    |                                                        ^~~~~~~~~~~
> scripts/mod/file2alias.c:1357:7: error: member reference base
>  type 'typeof (((struct tee_client_device_id *)0)->uuid)' (aka
>  'unsigned char[16]') is not a structure or union 1357 |
>  uuid->b[15]);      |                 ~~~~^ ~
> /Library/Developer/CommandLineTools/SDKs/MacOSX14.sdk/usr/include/
>    secure/_stdio.h:47:56: note: expanded from macro 'sprintf' 47 |
>    __builtin___sprintf_chk (str, 0, __darwin_obsz(str), __VA_ARGS__)
>    |                                                        ^~~~~~~~~~~
> 17 errors generated.
>
> Suggested-by: Nicolas Schier <nicolas at fjasle.eu>
> Signed-off-by: Daniel Gomez <da.gomez at samsung.com>
> ---
>  scripts/mod/Makefile     | 2 ++
>  scripts/mod/file2alias.c | 3 +++
>  2 files changed, 5 insertions(+)
>
> diff --git a/scripts/mod/Makefile b/scripts/mod/Makefile
> index c729bc936bae..75c12c045f21 100644
> --- a/scripts/mod/Makefile
> +++ b/scripts/mod/Makefile
> @@ -8,6 +8,8 @@ modpost-objs    := modpost.o file2alias.o sumversion.o symsearch.o
>
>  devicetable-offsets-file := devicetable-offsets.h
>
> +HOSTCFLAGS_file2alias.o += -D_UUID_T -D__GETHOSTUUID_H
> +
>  $(obj)/$(devicetable-offsets-file): $(obj)/devicetable-offsets.s FORCE
>         $(call filechk,offsets,__DEVICETABLE_OFFSETS_H__)
>
> diff --git a/scripts/mod/file2alias.c b/scripts/mod/file2alias.c
> index 99dce93a4188..ab743f6d60ef 100644
> --- a/scripts/mod/file2alias.c
> +++ b/scripts/mod/file2alias.c
> @@ -11,6 +11,9 @@
>   */
>
>  #include "modpost.h"
> +#ifdef __APPLE__
> +#define uuid_t sys_uuid_t
> +#endif
>  #include "devicetable-offsets.h"




Is this what Nicolas suggested?
https://lore.kernel.org/lkml/20240807-sexy-roadrunner-of-acceptance-a84bbf@lindesnes/


I thought he suggested replacing #ifdef __APPLE__
with -D_UUID_T -D__GETHOSTUUID_H.


You added -D_UUID_T -D__GETHOSTUUID_H,
keeping #ifdef __APPLE__.









>  /* We use the ELF typedefs for kernel_ulong_t but bite the bullet and
>
> --
> 2.46.0
>
>


-- 
Best Regards
Masahiro Yamada


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