diff options
Diffstat (limited to 'configure.ac')
| -rw-r--r-- | configure.ac | 118 |
1 files changed, 67 insertions, 51 deletions
diff --git a/configure.ac b/configure.ac index b348a717..11d1cf82 100644 --- a/configure.ac +++ b/configure.ac @@ -2,6 +2,7 @@ dnl Process this file with autoconf to produce a configure script. dnl Configure input file for elfutils. -*-autoconf-*- dnl dnl Copyright (C) 1996-2019 Red Hat, Inc. +dnl Copyright (C) 2022 Mark J. Wielaard <mark@klomp.org> dnl dnl This file is part of elfutils. dnl @@ -17,7 +18,7 @@ dnl GNU General Public License for more details. dnl dnl You should have received a copy of the GNU General Public License dnl along with this program. If not, see <http://www.gnu.org/licenses/>. -AC_INIT([elfutils],[0.185],[https://sourceware.org/bugzilla],[elfutils],[http://elfutils.org/]) +AC_INIT([elfutils],[0.187],[https://sourceware.org/bugzilla],[elfutils],[http://elfutils.org/]) dnl Workaround for older autoconf < 2.64 m4_ifndef([AC_PACKAGE_URL], @@ -44,7 +45,7 @@ fi AC_CONFIG_AUX_DIR([config]) AC_CONFIG_FILES([config/Makefile]) -AC_COPYRIGHT([Copyright (C) 1996-2021 The elfutils developers.]) +AC_COPYRIGHT([Copyright (C) 1996-2022 The elfutils developers.]) AC_PREREQ(2.63) dnl Minimum Autoconf version required. dnl We use GNU make extensions; automake 1.10 defaults to -Wportability. @@ -87,7 +88,8 @@ AS_IF([test "$use_locks" = yes], AH_TEMPLATE([USE_LOCKS], [Defined if libraries should be thread-safe.]) -AC_PROG_CC +AC_PROG_CC_C99 +AC_PROG_CXX AC_PROG_RANLIB AC_PROG_YACC AM_PROG_LEX @@ -96,39 +98,6 @@ m4_ifdef([AM_PROG_AR], [AM_PROG_AR]) AC_CHECK_TOOL([READELF], [readelf]) AC_CHECK_TOOL([NM], [nm]) -# We use -std=gnu99 but have explicit checks for some language constructs -# and GNU extensions since some compilers claim GNU99 support, but don't -# really support all language extensions. In particular we need -# Mixed Declarations and Code -# https://gcc.gnu.org/onlinedocs/gcc/Mixed-Declarations.html -# Nested Functions -# https://gcc.gnu.org/onlinedocs/gcc/Nested-Functions.html -# Arrays of Variable Length -# https://gcc.gnu.org/onlinedocs/gcc/Variable-Length.html -AC_CACHE_CHECK([for gcc with GNU99 support], ac_cv_c99, [dnl -old_CFLAGS="$CFLAGS" -CFLAGS="$CFLAGS -std=gnu99" -AC_COMPILE_IFELSE([AC_LANG_SOURCE([dnl -int foo (int a) -{ - for (int i = 0; i < a; ++i) if (i % 4) break; int s = a; return s; -} - -double bar (double a, double b) -{ - double square (double z) { return z * z; } - return square (a) + square (b); -} - -void baz (int n) -{ - struct S { int x[[n]]; }; -}])], - ac_cv_c99=yes, ac_cv_c99=no) -CFLAGS="$old_CFLAGS"]) -AS_IF([test "x$ac_cv_c99" != xyes], - AC_MSG_ERROR([gcc with GNU99 support required])) - AC_CACHE_CHECK([whether gcc supports __attribute__((visibility()))], ac_cv_visibility, [dnl save_CFLAGS="$CFLAGS" @@ -264,25 +233,38 @@ AC_CACHE_CHECK([whether fts.h is bad when included (with LFS)], ac_cv_bad_fts, AS_IF([test "x$ac_cv_bad_fts" = "xyes"], [CFLAGS="$CFLAGS -DBAD_FTS=1" CXXFLAGS="$CXXFLAGS -DBAD_FTS=1"]) -# See if we can add -D_FORTIFY_SOURCE=2. Don't do it if it is already +# See if we can add -D_FORTIFY_SOURCE=2 or =3. Don't do it if it is already # (differently) defined or if it generates warnings/errors because we # don't use the right optimisation level (string.h will warn about that). -AC_MSG_CHECKING([whether to add -D_FORTIFY_SOURCE=2 to CFLAGS]) +AC_MSG_CHECKING([whether to add -D_FORTIFY_SOURCE=2 or =3 to CFLAGS]) case "$CFLAGS" in - *-D_FORTIFY_SOURCE=2*) + *-D_FORTIFY_SOURCE=*) AC_MSG_RESULT([no, already there]) ;; *) save_CFLAGS="$CFLAGS" - CFLAGS="-D_FORTIFY_SOURCE=2 $CFLAGS -Werror" + # Try 3 first. + CFLAGS="-D_FORTIFY_SOURCE=3 $save_CFLAGS -Werror" + fortified_cflags="" AC_COMPILE_IFELSE([AC_LANG_SOURCE([[ #include <string.h> int main() { return 0; } - ]])], [ AC_MSG_RESULT([yes]) - CFLAGS="-D_FORTIFY_SOURCE=2 $save_CFLAGS" ], - [ AC_MSG_RESULT([no]) - CFLAGS="$save_CFLAGS"]) - ;; + ]])], [ AC_MSG_RESULT([yes -D_FORTIFY_SOURCE=3]) + fortified_cflags="-D_FORTIFY_SOURCE=3" ], []) + + # If that didn't work, try 2. + if test -z "$fortified_cflags"; then + CFLAGS="-D_FORTIFY_SOURCE=2 $save_CFLAGS -Werror" + AC_COMPILE_IFELSE([AC_LANG_SOURCE([[ + #include <string.h> + int main() { return 0; } + ]])], [ AC_MSG_RESULT([yes -D_FORTIFY_SOURCE=2]) + fortified_cflags="-D_FORTIFY_SOURCE=2" ], + [ AC_MSG_RESULT([no, cannot be used])]) + fi + CFLAGS="$fortified_cflags $save_CFLAGS" + CXXFLAGS="$fortified_cflags $CXXFLAGS" + ;; esac dnl enable debugging of branch prediction. @@ -340,10 +322,34 @@ esac AC_DEFINE_UNQUOTED(CHECK_UNDEFINED, $check_undefined_val, [Building with -fsanitize=undefined or not]) +AC_ARG_ENABLE([sanitize-address], + AS_HELP_STRING([--enable-sanitize-address], + [Use gcc address sanitizer]), + [use_address=$enableval], [use_address=no]) +if test "$use_address" = yes; then + old_CFLAGS="$CFLAGS" + old_CXXFLAGS="$CXXFLAGS" + old_LDFLAGS="$LDFLAGS" + # We want to fail immediately on first error, don't try to recover. + CFLAGS="$CFLAGS -fsanitize=address -fno-sanitize-recover" + CXXFLAGS="$CXXFLAGS -fsanitize=address -fno-sanitize-recover" + # Some compilers don't handle -fsanatize=address correctly with --no-undefined + LDFLAGS="-Wl,-z,defs -shared" + AC_LINK_IFELSE([AC_LANG_SOURCE([int main (int argc, char **argv) { return 0; }])], use_address=yes, use_address=no) + AS_IF([test "x$use_address" != xyes], + AC_MSG_WARN([gcc address sanitizer not available]) + CFLAGS="$old_CFLAGS" CXXFLAGS="$old_CXXFLAGS") + LDFLAGS="$old_LDFLAGS" +fi +AM_CONDITIONAL(USE_ADDRESS_SANITIZER, test "$use_address" = yes) + AC_ARG_ENABLE([valgrind], AS_HELP_STRING([--enable-valgrind],[run all tests under valgrind]), [use_valgrind=$enableval], [use_valgrind=no]) if test "$use_valgrind" = yes; then + if test "$use_address" = yes; then + AC_MSG_ERROR([cannot enable valgrind and sanitize address together]) + fi AC_CHECK_PROG(HAVE_VALGRIND, valgrind, yes, no) if test "$HAVE_VALGRIND" = "no"; then AC_MSG_ERROR([valgrind not found]) @@ -425,8 +431,17 @@ AC_CHECK_DECLS([powerof2],[],[],[#include <sys/param.h>]) AC_CHECK_DECLS([mempcpy],[],[], [#define _GNU_SOURCE #include <string.h>]) +AC_CHECK_DECLS([reallocarray],[],[], + [#define _GNU_SOURCE + #include <stdlib.h>]) + +AC_CHECK_FUNCS([process_vm_readv mremap]) -AC_CHECK_FUNCS([process_vm_readv]) +AS_IF([test "x$ac_cv_func_mremap" = "xno"], + [AC_MSG_WARN([elf_update needs mremap to support ELF_C_RDWR_MMAP])]) + +AC_CHECK_HEADERS([error.h]) +AC_CHECK_HEADERS([err.h]) old_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS -D_GNU_SOURCE" @@ -694,9 +709,7 @@ if test "$sys_user_has_user_regs" = "yes"; then fi # On a 64-bit host where can can use $CC -m32, we'll run two sets of tests. -# Likewise in a 32-bit build on a host where $CC -m64 works. utrace_BIARCH -# `$utrace_biarch' will be `-m64' even on an uniarch i386 machine. CC_BIARCH="$CC $utrace_biarch" AC_SUBST([CC_BIARCH]) @@ -732,7 +745,7 @@ AC_CHECK_PROG(HAVE_ZSTD, zstd, yes, no) AM_CONDITIONAL([HAVE_ZSTD],[test "x$HAVE_ZSTD" = "xyes"]) # Look for libcurl for libdebuginfod minimum version as per rhel7. -AC_ARG_ENABLE([libdebuginfod],AC_HELP_STRING([--enable-libdebuginfod], [Build debuginfod client library (can be =dummy)])) +AC_ARG_ENABLE([libdebuginfod],AS_HELP_STRING([--enable-libdebuginfod], [Build debuginfod client library (can be =dummy)])) AS_IF([test "x$enable_libdebuginfod" != "xno"], [ if test "x$enable_libdebuginfod" != "xdummy"; then AC_MSG_NOTICE([checking libdebuginfod dependencies, --disable-libdebuginfod or --enable-libdebuginfo=dummy to skip]) @@ -759,8 +772,7 @@ AM_CONDITIONAL([DUMMY_LIBDEBUGINFOD],[test "x$enable_libdebuginfod" = "xdummy"]) # Look for libmicrohttpd, libarchive, sqlite for debuginfo server # minimum versions as per rhel7. -AC_ARG_ENABLE([debuginfod],AC_HELP_STRING([--enable-debuginfod], [Build debuginfod server])) -AC_PROG_CXX +AC_ARG_ENABLE([debuginfod],AS_HELP_STRING([--enable-debuginfod], [Build debuginfod server])) AS_IF([test "x$enable_debuginfod" != "xno"], [ AC_MSG_NOTICE([checking debuginfod C++11 support, --disable-debuginfod to skip]) AX_CXX_COMPILE_STDCXX(11, noext, mandatory) @@ -807,6 +819,9 @@ AC_MSG_NOTICE([ Maintainer mode : ${enable_maintainer_mode} build arch : ${ac_cv_build} + CFLAGS=${CFLAGS} + CXXFLAGS=${CXXFLAGS} + RECOMMENDED FEATURES (should all be yes) gzip support : ${with_zlib} bzip2 support : ${with_bzlib} @@ -836,6 +851,7 @@ AC_MSG_NOTICE([ gcov support : ${use_gcov} run all tests under valgrind : ${use_valgrind} gcc undefined behaviour sanitizer : ${use_undefined} + gcc address sanitizer : ${use_address} use rpath in tests : ${tests_use_rpath} test biarch : ${utrace_cv_cc_biarch} ]) |