linux-kernel - Re: [linus:master] [selftests/harness] 8092162335: kernel-selftests.sgx.make.fail

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Date: Wed, 1 May 2024 13:32:57 -0700
From: Kees Cook <keescook@...omium.org>
To: kernel test robot <oliver.sang@...el.com>
Cc: Edward Liaw <edliaw@...gle.com>, oe-lkp@...ts.linux.dev, lkp@...el.com,
	linux-kernel@...r.kernel.org,
	Andrew Morton <akpm@...ux-foundation.org>,
	Muhammad Usama Anjum <usama.anjum@...labora.com>,
	Andy Lutomirski <luto@...capital.net>,
	Axel Rasmussen <axelrasmussen@...gle.com>,
	Bill Wendling <morbo@...gle.com>,
	David Hildenbrand <david@...hat.com>,
	Justin Stitt <justinstitt@...gle.com>,
	"Mike Rapoport (IBM)" <rppt@...nel.org>,
	Nathan Chancellor <nathan@...nel.org>,
	Nick Desaulniers <ndesaulniers@...gle.com>,
	Peter Xu <peterx@...hat.com>, Shuah Khan <shuah@...nel.org>,
	Will Drewry <wad@...omium.org>, linux-kselftest@...r.kernel.org,
	linux-mm@...ck.org
Subject: Re: [linus:master] [selftests/harness]  8092162335:
 kernel-selftests.sgx.make.fail

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