回复: [PATCH] selftests/landlock:Fix two build issues

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->On Wed, Jan 10, 2024 at 03:08:54PM +0800, Hu Yadi wrote:
>> From: "Hu.Yadi" <hu.yadi@xxxxxxx>
>> 
>> Two issues comes up  while building selftest/landlock:
>> 
>> the first one is as to gettid
>> 
>> net_test.c: In function ‘set_service’:
>> net_test.c:91:45: warning: implicit declaration of function ‘gettid’; did you mean ‘getgid’? [-Wimplicit-function-declaration]
>>     "_selftests-landlock-net-tid%d-index%d", gettid(),
>>                                              ^~~~~~
>>                                              getgid
>> net_test.c:(.text+0x4e0): undefined reference to `gettid'
>> 
>> the second is compiler error
>> gcc -Wall -O2 -isystem   fs_test.c -lcap -o /home/linux/tools/testing/selftests/landlock/fs_test
>> fs_test.c:4575:9: error: initializer element is not constant
>>   .mnt = mnt_tmp,
>>          ^~~~~~~
>
>What is the version of GCC (and headers) and on which system (and
>version) are you building these tests?

gcc 7.3 / glibc-2.28/ kernel 4.19/ OpenEulor20.03

>> 
>> this patch is to fix them
>> 
>> Signed-off-by: Hu.Yadi <hu.yadi@xxxxxxx>
>> Suggested-by: Jiao <jiaoxupo@xxxxxxx>
>> Reviewed-by:Berlin <berlin@xxxxxxx>
>> ---
>>  tools/testing/selftests/landlock/fs_test.c  | 5 ++++-  
>> tools/testing/selftests/landlock/net_test.c | 3 +--
>>  2 files changed, 5 insertions(+), 3 deletions(-)
>> 
>> diff --git a/tools/testing/selftests/landlock/fs_test.c 
>> b/tools/testing/selftests/landlock/fs_test.c
>> index 18e1f86a6234..93eb40a09073 100644
>> --- a/tools/testing/selftests/landlock/fs_test.c
>> +++ b/tools/testing/selftests/landlock/fs_test.c
>> @@ -4572,7 +4572,10 @@ FIXTURE_VARIANT(layout3_fs)
>>  /* clang-format off */
>>  FIXTURE_VARIANT_ADD(layout3_fs, tmpfs) {
>>  	/* clang-format on */
>> -	.mnt = mnt_tmp,
>> +	.mnt = {
>> +		.type = "tmpfs",
>> +        	.data = "size=4m,mode=700",
>
>When applying this patch we get: "space before tab in indent"

Sorry for inconvenient, I'll resend it v2 after checkpatch.pl shows no error.

>> +	},
>>  	.file_path = file1_s1d1,
>>  };
>>  
>> diff --git a/tools/testing/selftests/landlock/net_test.c 
>> b/tools/testing/selftests/landlock/net_test.c
>> index 929e21c4db05..8fb357de8c55 100644
>> --- a/tools/testing/selftests/landlock/net_test.c
>> +++ b/tools/testing/selftests/landlock/net_test.c
>> @@ -18,7 +18,6 @@
>>  #include <sys/prctl.h>
>>  #include <sys/socket.h>
>>  #include <sys/un.h>
>> -
>>  #include "common.h"
>>  
>>  const short sock_port_start = (1 << 10); @@ -88,7 +87,7 @@ static int 
>> set_service(struct service_fixture *const srv,
>>  	case AF_UNIX:
>>  		srv->unix_addr.sun_family = prot.domain;
>>  		sprintf(srv->unix_addr.sun_path,
>> -			"_selftests-landlock-net-tid%d-index%d", gettid(),
>> +			"_selftests-landlock-net-tid%ld-index%d", syscall(SYS_gettid),
>
>You sent another patch that "replace SYS_<syscall> with __NR_<syscall>".
>Why not here?
>
>Please follow the same approach:
>https://git.kernel.org/stable/c/87129ef13603ae46c82bcd09eed948acf0506dbb

Got it, I'll resend it v2 including the fix 

>>  			index);
>>  		srv->unix_addr_len = SUN_LEN(&srv->unix_addr);
>>  		srv->unix_addr.sun_path[0] = '\0';
>> --
>> 2.23.0
>> 
>> 

 




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