Re: [PATCH] selftests/x86: Add <test_name>{,_32,_64} targets

From: Shuah Khan
Date: Thu Jan 18 2018 - 19:29:04 EST


On 01/18/2018 04:10 PM, Andy Lutomirski wrote:
> On Thu, Jan 18, 2018 at 2:19 PM, Dmitry Safonov <dima@xxxxxxxxxx> wrote:
>> One can only use `make all` or `make <test_name>_<bitness>`
>> as make targets.
>> `make <test_name>` doesn't work as Ingo noticed:
>> x86> make test_vsyscall
>> gcc -O2 -g -std=gnu99 -pthread -Wall -no-pie test_vsyscall.c -o test_vsyscall
>> /tmp/aBaoo3nb.o: In function `init_vdso':
>> test_vsyscall.c:68: undefined reference to `dlopen'
>> test_vsyscall.c:76: undefined reference to `dlsym'
>> test_vsyscall.c:80: undefined reference to `dlsym'
>> test_vsyscall.c:84: undefined reference to `dlsym'
>> test_vsyscall.c:88: undefined reference to `dlsym'
>> test_vsyscall.c:70: undefined reference to `dlopen'
>> collect2: error: ld returned 1 exit status
>> <builtin>: recipe for target 'test_vsyscall' failed
>> make: *** [test_vsyscall] Error 1
>>
>> Makefile target substitution neither works :-/
>>
>> Generate .PHONY targets per-test and fix target substitution.
>
> Reviewed-by: Andy Lutomirski <luto@xxxxxxxxxx>
>
>

Thanks for taking care of this. I plan to get this into 4.16-rc1
unless there is a dependency on x86 tree.

thanks,
-- Shuah