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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. Cc: Andy Lutomirski <luto@kernel.org> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Shuah Khan <shuah@kernel.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: linux-kselftest@vger.kernel.org Cc: x86@kernel.org Reported-by: Ingo Molnar <mingo@kernel.org> Signed-off-by: Dmitry Safonov <dima@arista.com> Reviewed-by: Andy Lutomirski <luto@kernel.org> Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
Linux kernel ============ This file was moved to Documentation/admin-guide/README.rst Please notice that there are several guides for kernel developers and users. These guides can be rendered in a number of formats, like HTML and PDF. In order to build the documentation, use ``make htmldocs`` or ``make pdfdocs``. There are various text files in the Documentation/ subdirectory, several of them using the Restructured Text markup notation. See Documentation/00-INDEX for a list of what is contained in each file. Please read the Documentation/process/changes.rst file, as it contains the requirements for building and running the kernel, and information about the problems which may result by upgrading your kernel.