From: Christian Ehrhardt Date: Mon, 14 Dec 2020 16:09:38 +0100 Subject: build: -no-pie is no functional linker flag Git-commit: bbd2d5a8120771ec59b86a80a1f51884e0a26e53 Recent binutils changes dropping unsupported options [1] caused a build issue in regard to the optionroms. ld -m elf_i386 -T /<>/pc-bios/optionrom//flat.lds -no-pie \ -s -o multiboot.img multiboot.o ld.bfd: Error: unable to disambiguate: -no-pie (did you mean --no-pie ?) This isn't really a regression in ld.bfd, filing the bug upstream revealed that this never worked as a ld flag [2] - in fact it seems we were by accident setting --nmagic). Since it never had the wanted effect this usage of LDFLAGS_NOPIE, should be droppable without any effect. This also is the only use-case of LDFLAGS_NOPIE in .mak, therefore we can also remove it from being added there. [1]: https://sourceware.org/git/?p=binutils-gdb.git;a=commit;h=983d925d [2]: https://sourceware.org/bugzilla/show_bug.cgi?id=27050#c5 Signed-off-by: Christian Ehrhardt Message-Id: <20201214150938.1297512-1-christian.ehrhardt@canonical.com> Cc: qemu-stable@nongnu.org Signed-off-by: Paolo Bonzini Signed-off-by: Bruce Rogers --- configure | 3 --- pc-bios/optionrom/Makefile | 1 - 2 files changed, 4 deletions(-) diff --git a/configure b/configure index 18c26e0389741643748c70ac7788..7ce723bbe769dac2af8456079e89 100755 --- a/configure +++ b/configure @@ -2121,7 +2121,6 @@ EOF # Check we support --no-pie first; we will need this for building ROMs. if compile_prog "-Werror -fno-pie" "-no-pie"; then CFLAGS_NOPIE="-fno-pie" - LDFLAGS_NOPIE="-no-pie" fi if test "$static" = "yes"; then @@ -2137,7 +2136,6 @@ if test "$static" = "yes"; then fi elif test "$pie" = "no"; then CONFIGURE_CFLAGS="$CFLAGS_NOPIE $CONFIGURE_CFLAGS" - CONFIGURE_LDFLAGS="$LDFLAGS_NOPIE $CONFIGURE_LDFLAGS" elif compile_prog "-Werror -fPIE -DPIE" "-pie"; then CONFIGURE_CFLAGS="-fPIE -DPIE $CONFIGURE_CFLAGS" CONFIGURE_LDFLAGS="-pie $CONFIGURE_LDFLAGS" @@ -6756,7 +6754,6 @@ echo "QEMU_CXXFLAGS=$QEMU_CXXFLAGS" >> $config_host_mak echo "GLIB_CFLAGS=$glib_cflags" >> $config_host_mak echo "GLIB_LIBS=$glib_libs" >> $config_host_mak echo "QEMU_LDFLAGS=$QEMU_LDFLAGS" >> $config_host_mak -echo "LDFLAGS_NOPIE=$LDFLAGS_NOPIE" >> $config_host_mak echo "LD_I386_EMULATION=$ld_i386_emulation" >> $config_host_mak echo "EXESUF=$EXESUF" >> $config_host_mak echo "HOST_DSOSUF=$HOST_DSOSUF" >> $config_host_mak diff --git a/pc-bios/optionrom/Makefile b/pc-bios/optionrom/Makefile index 084fc10f0540b62df06c476bb11c..30771f8d17cb2143eb7bbb004ceb 100644 --- a/pc-bios/optionrom/Makefile +++ b/pc-bios/optionrom/Makefile @@ -41,7 +41,6 @@ override CFLAGS += $(call cc-option, $(Wa)-32) LD_I386_EMULATION ?= elf_i386 override LDFLAGS = -m $(LD_I386_EMULATION) -T $(SRC_DIR)/flat.lds -override LDFLAGS += $(LDFLAGS_NOPIE) all: multiboot.bin linuxboot.bin linuxboot_dma.bin kvmvapic.bin pvh.bin