diff options
Diffstat (limited to 'configure.ac')
| -rw-r--r-- | configure.ac | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/configure.ac b/configure.ac index e48957f..4a952c1 100644 --- a/configure.ac +++ b/configure.ac @@ -526,6 +526,26 @@ case $($LD --version) in esac LIBC_CONFIG_VAR([with-lld], [$libc_cv_with_lld]) +dnl Workaround for binutils LOAD segment gaps bug (swbz#28743) +dnl Fixed in commit 9833b7757d246f22db4eb24b8e5db7eb5e05b6d9 +dnl ("PR28824, relro security issues"), part of binutils 2.39. +AC_ARG_WITH([ld_load_gaps], + [AS_HELP_STRING([--with-ld-load-gaps], + [support linker with LOAD segment gaps bug @<:@default=check@:>@])], + [], + [: m4_divert_text([DEFAULTS], [with_ld_load_gaps=check])]) +AS_IF([test "x$with_ld_load_gaps" = xcheck], + [echo "Checking binutils ld version:" >&AS_MESSAGE_LOG_FD + AS_IF([LC_ALL=C $LD --version | grep -E '^GNU ld version 2\.(2[[0-9]]|3[[0-8]])[[^0-9]]' >&AS_MESSAGE_LOG_FD], + [with_ld_load_gaps=yes], + [with_ld_load_gaps=no + echo "(linker not binutils or not impacted)" >&AS_MESSAGE_LOG_FD])]) +AS_IF([test "x$with_ld_load_gaps" != xyes && test "x$with_ld_load_gaps" != xno], + AC_MSG_ERROR([invalid --with-ld-load-gaps argument: $with_ld_load_gaps])) +AS_IF([test "x$with_ld_load_gaps" = xyes], + [AC_DEFINE(HAVE_LD_LOAD_GAPS)]) +AC_SUBST(with_ld_load_gaps) + # These programs are version sensitive. AC_CHECK_PROG_VER(MAKE, gnumake gmake make, --version, [GNU Make[^0-9]*\([0-9][0-9.]*\)], |