From: jaruga@... Date: 2021-08-12T08:49:59+00:00 Subject: [ruby-core:104894] [Ruby master Bug#18073] test/ruby/test_jit.rb: "error: invalid use of '__builtin_va_arg_pack ()'" on Ruby 2.7.4 on gcc 4.8.5 Issue #18073 has been updated by jaruga (Jun Aruga). @xtkoba thanks for the info. I confirmed the value of `CPP` on RHEL 7 autoconf version 2.69. The following `configure.ac` works fine. ``` $ cat configure.ac AC_INIT ac_cv_prog_cc_c99=-std=gnu99 AC_PROG_CC_C99 AC_PREPROC_IFELSE([AC_LANG_SOURCE([[]])],[],[]) echo "CC:" "$CC" echo "CPP:" "$CPP" $ autoconf $ ./configure checking for gcc... gcc checking whether the C compiler works... yes checking for C compiler default output file name... a.out checking for suffix of executables... checking whether we are cross compiling... no checking for suffix of object files... o checking whether we are using the GNU C compiler... yes checking whether gcc accepts -g... yes checking for gcc option to accept ISO C89... none needed checking for gcc option to accept ISO C99... (cached) -std=gnu99 checking how to run the C preprocessor... gcc -std=gnu99 -E CC: gcc -std=gnu99 CPP: gcc -std=gnu99 -E ``` The following `configure.ac` doesn't. ``` $ cat configure.ac AC_INIT ac_cv_prog_cc_c99=-std=gnu99 AC_PREPROC_IFELSE([AC_LANG_SOURCE([[]])],[],[]) AC_PROG_CC_C99 echo "CC:" "$CC" echo "CPP:" "$CPP" $ autoconf $ ./configure checking for gcc... gcc checking whether the C compiler works... yes checking for C compiler default output file name... a.out checking for suffix of executables... checking whether we are cross compiling... no checking for suffix of object files... o checking whether we are using the GNU C compiler... yes checking whether gcc accepts -g... yes checking for gcc option to accept ISO C89... none needed checking how to run the C preprocessor... gcc -E checking for gcc option to accept ISO C99... (cached) -std=gnu99 CC: gcc -std=gnu99 CPP: gcc -E ``` ---------------------------------------- Bug #18073: test/ruby/test_jit.rb: "error: invalid use of '__builtin_va_arg_pack ()'" on Ruby 2.7.4 on gcc 4.8.5 https://bugs.ruby-lang.org/issues/18073#change-93254 * Author: jaruga (Jun Aruga) * Status: Open * Priority: Normal * Backport: 2.6: UNKNOWN, 2.7: REQUIRED, 3.0: DONTNEED ---------------------------------------- I hit the following JIT test failures causing the following error on v2_7_4 tag (Ruby 2.7.4) with gcc 4.8.5 on RHEL 7. The tests work on Ruby 2.7.3 and also works on Ruby 3.0.2. ``` /mnt/git/ruby/ruby/.ext/include/x86_64-linux/rb_mjit_min_header-2.7.4.h: In function 'sprintf': /mnt/git/ruby/ruby/.ext/include/x86_64-linux/rb_mjit_min_header-2.7.4.h:442:3: error: invalid use of '__builtin_va_arg_pack ()' return __builtin___sprintf_chk (__s, 2 - 1, ^ ``` ``` $ which gcc /usr/bin/gcc $ gcc --version gcc (GCC) 4.8.5 20150623 (Red Hat 4.8.5-39) Copyright (C) 2015 Free Software Foundation, Inc. This is free software; see the source for copying conditions. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. $ git branch * (detached from v2_7_4) ... $ autoconf $ ./configure --enable-shared 2>&1 | tee configure.log $ make 2>&1 | tee make.log ``` Here is one of the failures. I would attach the full long files on this ticket. ``` $ make test-all TESTS="-v test/ruby/test_jit.rb" 2>&1 | tee make_test-all_test_jit.log ... 30) Failure: TestJIT#test_compile_insn_local [/mnt/git/ruby/ruby/test/ruby/test_jit.rb:62]: Expected 1 times of JIT success, but succeeded 0 times. script: """ p proc { foo = 1 foo }.call """ stderr: """ /mnt/git/ruby/ruby/.ext/include/x86_64-linux/rb_mjit_min_header-2.7.4.h: In function 'sprintf': /mnt/git/ruby/ruby/.ext/include/x86_64-linux/rb_mjit_min_header-2.7.4.h:442:3: error: invalid use of '__builtin_va_arg_pack ()' return __builtin___sprintf_chk (__s, 2 - 1, ^ compilation terminated due to -Wfatal-errors. Successful MJIT finish """ .. <1> expected but was <0>. ... Finished tests in 29.837252s, 3.1504 tests/s, 15.7186 assertions/s. 94 tests, 469 assertions, 87 failures, 0 errors, 4 skips ... ``` ---Files-------------------------------- configure.log (27.6 KB) make.log (102 KB) make_test-all_test_jit.log (77 KB) -- https://bugs.ruby-lang.org/ Unsubscribe: