From e4333d14c574631029e2d9d00bcb94b81a8df800 Mon Sep 17 00:00:00 2001 From: Paolo Bonzini Date: Tue, 15 Mar 2022 15:57:15 +0100 Subject: [PATCH] configure, meson: move linker flag detection to meson MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Reviewed-by: Marc-André Lureau Signed-off-by: Paolo Bonzini --- configure | 16 ---------------- meson.build | 13 +++++++++++++ 2 files changed, 13 insertions(+), 16 deletions(-) diff --git a/configure b/configure index 3e3c0f36c9..e032bd0a08 100755 --- a/configure +++ b/configure @@ -1342,12 +1342,10 @@ EOF if test "$static" = "yes"; then if test "$pie" != "no" && compile_prog "-Werror -fPIE -DPIE" "-static-pie"; then CONFIGURE_CFLAGS="-fPIE -DPIE $CONFIGURE_CFLAGS" - QEMU_LDFLAGS="-static-pie $QEMU_LDFLAGS" pie="yes" elif test "$pie" = "yes"; then error_exit "-static-pie not available due to missing toolchain support" else - QEMU_LDFLAGS="-static $QEMU_LDFLAGS" pie="no" fi elif test "$pie" = "no"; then @@ -1369,12 +1367,6 @@ else pie="no" fi -# Detect support for PT_GNU_RELRO + DT_BIND_NOW. -# The combination is known as "full relro", because .got.plt is read-only too. -if compile_prog "" "-Wl,-z,relro -Wl,-z,now" ; then - QEMU_LDFLAGS="-Wl,-z,relro -Wl,-z,now $QEMU_LDFLAGS" -fi - ########################################## # __sync_fetch_and_and requires at least -march=i486. Many toolchains # use i686 as default anyway, but for those that don't, an explicit @@ -2242,14 +2234,6 @@ if test "$have_ubsan" = "yes"; then fi ########################################## - -# Exclude --warn-common with TSan to suppress warnings from the TSan libraries. -if test "$solaris" = "no" && test "$tsan" = "no"; then - if $ld --version 2>/dev/null | grep "GNU ld" >/dev/null 2>/dev/null ; then - QEMU_LDFLAGS="-Wl,--warn-common $QEMU_LDFLAGS" - fi -fi - # Guest agent Windows MSI package if test "$QEMU_GA_MANUFACTURER" = ""; then diff --git a/meson.build b/meson.build index 9c57ebdfb9..e9b0125b41 100644 --- a/meson.build +++ b/meson.build @@ -183,6 +183,14 @@ qemu_cflags = config_host['QEMU_CFLAGS'].split() qemu_objcflags = config_host['QEMU_OBJCFLAGS'].split() qemu_ldflags = config_host['QEMU_LDFLAGS'].split() +if enable_static + qemu_ldflags += get_option('b_pie') ? '-static-pie' : '-static' +endif + +# Detect support for PT_GNU_RELRO + DT_BIND_NOW. +# The combination is known as "full relro", because .got.plt is read-only too. +qemu_ldflags += cc.get_supported_link_arguments('-Wl,-z,relro', '-Wl,-z,now') + if targetos == 'windows' qemu_ldflags += cc.get_supported_link_arguments('-Wl,--no-seh', '-Wl,--nxcompat') # Disable ASLR for debug builds to allow debugging with gdb @@ -265,6 +273,11 @@ if add_languages('cpp', required: false, native: false) endif endif +# Exclude --warn-common with TSan to suppress warnings from the TSan libraries. +if targetos != 'sunos' and not config_host.has_key('CONFIG_TSAN') + qemu_ldflags += linker.get_supported_link_arguments('-Wl,--warn-common') +endif + add_global_link_arguments(qemu_ldflags, native: false, language: ['c', 'cpp', 'objc']) if targetos == 'linux'