[PATCH 3/4] qemu: Patch required to build with updated binutils-2.36.1

[Adolf Belka <adolf.belka@ipfire.org>]

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- Updated binutils caused failure in build of qemu
   Patch solved the problem
     This removes the -no-pie flag
- Thanks to Michael Tremer and Marcel Lorenz for guidance on the patch

Signed-off-by: Adolf Belka <adolf.belka(a)ipfire.org>
---
 lfs/qemu                            |  4 +-
 src/patches/qemu-5.2.0-no-pie.patch | 67 +++++++++++++++++++++++++++++
 2 files changed, 70 insertions(+), 1 deletion(-)
 create mode 100644 src/patches/qemu-5.2.0-no-pie.patch

diff --git a/lfs/qemu b/lfs/qemu
index aa09fa0ca..77bd00287 100644
--- a/lfs/qemu
+++ b/lfs/qemu
@@ -33,7 +33,7 @@ DIR_APP    = $(DIR_SRC)/$(THISAPP)
 TARGET     = $(DIR_INFO)/$(THISAPP)
 SUP_ARCH   = i586 x86_64
 PROG       = qemu
-PAK_VER    = 30
+PAK_VER    = 31
 
 DEPS       = libusbredir spice libseccomp
 
@@ -88,6 +88,8 @@ $(subst %,%_MD5,$(objects)) :
 $(TARGET) : $(patsubst %,$(DIR_DL)/%,$(objects))
 	@$(PREBUILD)
 	@rm -rf $(DIR_APP) && cd $(DIR_SRC) && tar axf $(DIR_DL)/$(DL_FILE)
+
+	cd $(DIR_APP) && patch -Np1 < $(DIR_SRC)/src/patches/qemu-5.2.0-no-pie.patch
 	cd $(DIR_APP) && ./configure \
 		--prefix=/usr \
 		--sysconfdir=/etc \
diff --git a/src/patches/qemu-5.2.0-no-pie.patch b/src/patches/qemu-5.2.0-no-pie.patch
new file mode 100644
index 000000000..8f3f4d590
--- /dev/null
+++ b/src/patches/qemu-5.2.0-no-pie.patch
@@ -0,0 +1,67 @@
+Recent binutils changes dropping unsupported options [1] caused a build
+issue in regard to the optionroms.
+
+  ld -m elf_i386 -T /<<PKGBUILDDIR>>/pc-bios/optionrom//flat.lds -no-pie \
+    -s -o multiboot.img multiboot.o
+  ld.bfd: Error: unable to disambiguate: -no-pie (did you mean --no-pie ?)
+
+This isn't really a regression in ld.bfd, filing the bug upstream
+revealed that this never worked as a ld flag [2] - in fact it seems we
+were by accident setting --nmagic).
+
+Since it never had the wanted effect this usage of LDFLAGS_NOPIE, should be
+droppable without any effect. This also is the only use-case of LDFLAGS_NOPIE
+in .mak, therefore we can also remove it from being added there.
+
+[1]: https://sourceware.org/git/?p=binutils-gdb.git;a=commit;h=983d925d
+[2]: https://sourceware.org/bugzilla/show_bug.cgi?id=27050#c5
+
+Signed-off-by: Christian Ehrhardt <christian.ehrhardt(a)canonical.com>
+---
+ configure                  | 3 ---
+ pc-bios/optionrom/Makefile | 1 -
+ 2 files changed, 4 deletions(-)
+
+diff --git a/configure b/configure
+index 3f823ed163..61c17c2dde 100755
+--- a/configure
++++ b/configure
+@@ -2133,7 +2133,6 @@ EOF
+ # Check we support --no-pie first; we will need this for building ROMs.
+ if compile_prog "-Werror -fno-pie" "-no-pie"; then
+   CFLAGS_NOPIE="-fno-pie"
+-  LDFLAGS_NOPIE="-no-pie"
+ fi
+ 
+ if test "$static" = "yes"; then
+@@ -2149,7 +2148,6 @@ 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 $CONFIGURE_LDFLAGS"
+@@ -6768,7 +6766,6 @@ echo "QEMU_CXXFLAGS=$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 084fc10f05..30771f8d17 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
+ 
+-- 
+2.29.2
+
-- 
2.31.1