On 5/2/24 1:32 AM, Kees Cook wrote: > 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). Sometimes the order of include is as following: #inlucde <stdio.h> #define _GNU_SOURCE #inlucde <stdio.h> The _GNU_SOURCE wasn't defined the first time stdio.h was included hence the definition of asprintf isn't present. The second inclusion of stdio.h when _GNU_SOURCE is defined is ignored as it was already included. This is being fixed in following series: https://lore.kernel.org/all/20240430235057.1351993-1-edliaw@xxxxxxxxxx -- BR, Muhammad Usama Anjum
