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Commit1056d3d2c9("selftests: enforce local header dependency in lib.mk") added header dependency to the rule, but as the rule uses $^, the headers are added to the compiler command line. This can cause unexpected precompiled header files being generated when compilation fails: $ echo { >> openat2_test.c $ make gcc -Wall -O2 -g -fsanitize=address -fsanitize=undefined openat2_test.c tools/testing/selftests/kselftest_harness.h tools/testing/selftests/kselftest.h helpers.c -o tools/testing/selftests/openat2/openat2_test openat2_test.c:313:1: error: expected identifier or ‘(’ before ‘{’ token 313 | { | ^ make: *** [../lib.mk:140: tools/testing/selftests/openat2/openat2_test] Error 1 $ file openat2_test* openat2_test: GCC precompiled header (version 014) for C openat2_test.c: C source, ASCII text Fix it by filtering out the headers, so that we'll only pass the actual *.c files in the compiler command line. Fixes:1056d3d2c9("selftests: enforce local header dependency in lib.mk") Signed-off-by: Tommi Rantala <tommi.t.rantala@nokia.com> Acked-by: Kees Cook <keescook@chromium.org> Reviewed-by: Christian Brauner <christian.brauner@ubuntu.com> Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
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.