回复: [PATCH v4] selftests/landlock:Fix two build issues

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> On Mon, Jan 15, 2024 at 06:24:09PM +0800, Hu Yadi wrote:
>>  From: "Hu.Yadi" <hu.yadi@xxxxxxx>
>> 
>> Two issues comes up while building selftest/landlock on my side (gcc 
>> 7.3/glibc-2.28/kernel-4.19)
>> 
>> 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’; [-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 selftests/landlock/fs_test
>> fs_test.c:4575:9: error: initializer element is not constant
>>   .mnt = mnt_tmp,
>>          ^~~~~~~
>> 
>> Fixes: 04f9070e99a4 ("selftests/landlock: Add tests for pseudo 
>> filesystems")
>> Fixes: a549d055a22e ("selftests/landlock: Add network tests")
>
>Could you please create two patches as requested for v3, one per fix?
>This is useful because it enables to backport these fixes when appropriate.

OK, I'll resend it by two patches with your warmly instruction.
Thanks again.

>> 
>> this patch is to fix them
>> 
>> Signed-off-by: Hu.Yadi <hu.yadi@xxxxxxx>
>> Suggested-by: Jiao <jiaoxupo@xxxxxxx>
>> Reviewed-by: Berlin <berlin@xxxxxxx>
>> ---
>> Changes v4 -> v3:
>>   fix gettid error from kernel test robot
>>   
>> https://lore.kernel.org/oe-kbuild-all/202401151147.T1s11iHJ-lkp@intel.
>> com/
>> Changes v3 -> v2:
>>  - add helper of gettid instead of __NR_gettid
>>  - add gcc/glibc version info in comments Changes v1 -> v2:
>>  - fix whitespace error
>>  - replace SYS_gettid with _NR_gettid
>> 
>>  tools/testing/selftests/landlock/fs_test.c  | 5 ++++-  
>> tools/testing/selftests/landlock/net_test.c | 7 ++++++-
>>  2 files changed, 10 insertions(+), 2 deletions(-)
>> 
>> diff --git a/tools/testing/selftests/landlock/fs_test.c 
>> b/tools/testing/selftests/landlock/fs_test.c
>> index 18e1f86a6234..a992cf7c0ad1 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",
>> +	},
>
>I requested some changes here.
>
>>  	.file_path = file1_s1d1,
>>  };
>> 
>> diff --git a/tools/testing/selftests/landlock/net_test.c 
>> b/tools/testing/selftests/landlock/net_test.c
>> index 929e21c4db05..d50f2920ed82 100644
>> --- a/tools/testing/selftests/landlock/net_test.c
>> +++ b/tools/testing/selftests/landlock/net_test.c
> @@ -21,6 +21,11 @@
>
>We should include sys/syscall.h
>
>> 
>>  #include "common.h"
>> 
>> +static pid_t landlock_gettid(void)
>
>Please rename to sys_gettid().
>
>> +{
>> +        return syscall(__NR_gettid);
>> +}
>> +
>>  const short sock_port_start = (1 << 10);
>> 
>>  static const char loopback_ipv4[] = "127.0.0.1"; @@ -88,7 +93,7 @@ 
>> 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%d-index%d", landlock_gettid(),
>>  			index);
>>  		srv->unix_addr_len = SUN_LEN(&srv->unix_addr);
>>  		srv->unix_addr.sun_path[0] = '\0';
>> --
>> 2.23.0
>>




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