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Date: Wed, 1 May 2024 13:32:57 -0700
From: Kees Cook <keescook@chromium.org>
To: kernel test robot <oliver.sang@intel.com>
Cc: Edward Liaw <edliaw@google.com>, oe-lkp@lists.linux.dev, lkp@intel.com,
	linux-kernel@vger.kernel.org,
	Andrew Morton <akpm@linux-foundation.org>,
	Muhammad Usama Anjum <usama.anjum@collabora.com>,
	Andy Lutomirski <luto@amacapital.net>,
	Axel Rasmussen <axelrasmussen@google.com>,
	Bill Wendling <morbo@google.com>,
	David Hildenbrand <david@redhat.com>,
	Justin Stitt <justinstitt@google.com>,
	"Mike Rapoport (IBM)" <rppt@kernel.org>,
	Nathan Chancellor <nathan@kernel.org>,
	Nick Desaulniers <ndesaulniers@google.com>,
	Peter Xu <peterx@redhat.com>, Shuah Khan <shuah@kernel.org>,
	Will Drewry <wad@chromium.org>, linux-kselftest@vger.kernel.org,
	linux-mm@kvack.org
Subject: Re: [linus:master] [selftests/harness]  8092162335:
 kernel-selftests.sgx.make.fail
Message-ID: <202405011330.85D66871E@keescook>
References: <202404301040.3bea5782-oliver.sang@intel.com>
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In-Reply-To: <202404301040.3bea5782-oliver.sang@intel.com>

On Tue, Apr 30, 2024 at 11:02:36AM +0800, kernel test robot wrote:
> version: kernel-selftests-x86_64-c7864053-1_20240419
> [...]
> compiler: gcc-13
> 2024-04-29 15:02:59 make -j16 -C sgx
> [...]
> gcc -Wall -Werror -static-pie -nostdlib -ffreestanding -fPIE -fno-stack-protector -mrdrnd -I/usr/src/perf_selftests-x86_64-rhel-8.3-kselftests-8092162335554c8ef5e7f50eff68aa9cfbdbf865/tools/testing/selftests/../../../tools/include test_encl.c test_encl_bootstrap.S -o /usr/src/perf_selftests-x86_64-rhel-8.3-kselftests-8092162335554c8ef5e7f50eff68aa9cfbdbf865/tools/testing/selftests/sgx/test_encl.elf -Wl,-T,test_encl.lds,--build-id=none
> /usr/bin/ld: warning: /tmp/lkp/cct4g3SV.o: missing .note.GNU-stack section implies executable stack
> /usr/bin/ld: NOTE: This behaviour is deprecated and will be removed in a future version of the linker
> In file included from main.c:21:
> ../kselftest_harness.h: In function ‘__run_test’:
> ../kselftest_harness.h:1166:13: error: implicit declaration of function ‘asprintf’; did you mean ‘vsprintf’? [-Werror=implicit-function-declaration]
>  1166 |         if (asprintf(&test_name, "%s%s%s.%s", f->name,
>       |             ^~~~~~~~
>       |             vsprintf
> cc1: all warnings being treated as errors

What environment is this being built in? "asprintf" should be available
via stdio.h, and "kselftest_harness.h" includes that (and _GNU_SOURCE).

-- 
Kees Cook