From: Christian Brauner Date: Tue, 5 Feb 2019 19:29:21 +0000 (+0100) Subject: compiler: -Wlogical-op hardening X-Git-Tag: lxc-3.2.0~166^2~10 X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=fb3b3ef484f0679534ec60764e47056102e43057;p=thirdparty%2Flxc.git compiler: -Wlogical-op hardening Warn about suspicious uses of logical operators in expressions. Signed-off-by: Christian Brauner --- diff --git a/configure.ac b/configure.ac index 9a6ba83c2..6aee94be3 100644 --- a/configure.ac +++ b/configure.ac @@ -690,6 +690,7 @@ AC_PROG_SED # See if we support thread-local storage. LXC_CHECK_TLS +# Hardening flags AX_CHECK_COMPILE_FLAG([-fdiagnostics-color], [CFLAGS="$CFLAGS -fdiagnostics-color"],,[-Werror]) AX_CHECK_COMPILE_FLAG([-Wimplicit-fallthrough], [CFLAGS="$CFLAGS -Wimplicit-fallthrough"],,[-Werror]) AX_CHECK_COMPILE_FLAG([-Wcast-align], [CFLAGS="$CFLAGS -Wcast-align"],,[-Werror]) @@ -700,6 +701,7 @@ AX_CHECK_LINK_FLAG([-fstack-protector-strong], [CFLAGS="$CFLAGS -fstack-protecto AX_CHECK_COMPILE_FLAG([-g], [CFLAGS="$CFLAGS -g"],,[-Werror]) AX_CHECK_COMPILE_FLAG([--mcet -fcf-protection], [CFLAGS="$CFLAGS --mcet -fcf-protection"],,[-Werror]) AX_CHECK_COMPILE_FLAG([-Werror=implicit-function-declaration], [CFLAGS="$CFLAGS -Werror=implicit-function-declaration"],,[-Werror]) +AX_CHECK_COMPILE_FLAG([-Wlogical-op], [CFLAGS="$CFLAGS -Wlogical-op"],,[-Werror]) AX_CHECK_LINK_FLAG([-z relro], [LDLAGS="$LDLAGS -z relro"],,[]) AX_CHECK_LINK_FLAG([-z now], [LDLAGS="$LDLAGS -z now"],,[])