From a192def39ee9a44cb8c05f8367240a7acf17539a Mon Sep 17 00:00:00 2001 From: Zach van Rijn Date: Wed, 4 Oct 2023 23:09:25 -0500 Subject: user/qemu: patch unsupported ld flag. fixes #1075. --- user/qemu/APKBUILD | 4 ++- user/qemu/fix-no-pie-ld-flag.patch | 71 ++++++++++++++++++++++++++++++++++++++ 2 files changed, 74 insertions(+), 1 deletion(-) create mode 100644 user/qemu/fix-no-pie-ld-flag.patch diff --git a/user/qemu/APKBUILD b/user/qemu/APKBUILD index 4254f3a62..c707b5c8e 100644 --- a/user/qemu/APKBUILD +++ b/user/qemu/APKBUILD @@ -6,7 +6,7 @@ # Maintainer: A. Wilcox pkgname=qemu pkgver=4.2.0 -pkgrel=1 +pkgrel=2 pkgdesc="Machine emulator and virtualisation software" url="https://www.qemu.org/" arch="all" @@ -157,6 +157,7 @@ source="https://download.qemu.org/$pkgname-$pkgver.tar.xz signal-fixes.patch sysinfo-header.patch fix-lm32-underlinking.patch + fix-no-pie-ld-flag.patch time64.patch MAP_SYNC-fix.patch CVE-2020-1711.patch @@ -454,6 +455,7 @@ fb0130fa4e8771b23ae337ea3e5e29fd5f7dcfe7f9f7a68968f5b059bb4dd1336b0d04c118840d55 c6436b1cc986788baccd5fe0f9d23c7db9026f6b723260611cf894bd94ee830140a17ee5859efe0dad0ca3bfe9caae1269bc5c9ab4c6e696f35c7857c1b5c86b signal-fixes.patch 698f6b134f4ca87f4de62caf7a656841a40a451b8686ca95928f67a296e58a7493d432d9baa5f6360917865aa4929600baf1699993b0600923a066ca9d45d1da sysinfo-header.patch 2828cc612539aa93b5789de7de6d4f85d3cf82311484c0fe91fdd3efeb972057e2baa2a3809ed633d6caa1785642d49196cb282b095d7553c510c47ce7d6a702 fix-lm32-underlinking.patch +61a0bc1c3cc902f3ead47c4f3a7651768e8f01d655494c53600f28cecf27cdb3d2f3e3778750154bb54e92006005b6ca629e30683c47d18dd4a20feafa64c8cd fix-no-pie-ld-flag.patch 44db77cab330075da601cc6083678c5f3ed1528936a8fd81148875bc67ed53332b21466c79ac6e5cf2b2e7d3824392dd7a52d0aaed03689be9b2dfddd5abba06 time64.patch d7de79ea74e36702cac4a59e472564a55f0a663be7e63c3755e32b4b5dfbc04b390ee79f09f43f6ae706ee2aec9e005eade3c0fd4a202db60d11f436874a17d7 MAP_SYNC-fix.patch 0ea3745c45507c00c3c036241992d594b5f7e9aa1f0fa9b425dd222390066e1ea2d0aa4923bde0e7f27b7cc2f759a122ae4b600c2fa682a5aad509e7d03ccad9 CVE-2020-1711.patch diff --git a/user/qemu/fix-no-pie-ld-flag.patch b/user/qemu/fix-no-pie-ld-flag.patch new file mode 100644 index 000000000..5501a267f --- /dev/null +++ b/user/qemu/fix-no-pie-ld-flag.patch @@ -0,0 +1,71 @@ +This patch differs from upstream in the following way: + + * It applies to 4.2.0 + +From bbd2d5a8120771ec59b86a80a1f51884e0a26e53 Mon Sep 17 00:00:00 2001 +From: Christian Ehrhardt +Date: Mon, 14 Dec 2020 16:09:38 +0100 +Subject: [PATCH] build: -no-pie is no functional linker flag + +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 +--- + configure | 3 --- + pc-bios/optionrom/Makefile | 1 - + 2 files changed, 4 deletions(-) + +diff -ur a/configure b/configure +--- a/configure 2023-10-05 04:04:33.203940722 +0000 ++++ b/configure 2023-10-05 04:04:58.968996416 +0000 +@@ -2045,7 +2045,6 @@ + # check we support --no-pie first... + if compile_prog "-Werror -fno-pie" "-no-pie"; then + CFLAGS_NOPIE="-fno-pie" +- LDFLAGS_NOPIE="-nopie" + fi + + if compile_prog "-fPIE -DPIE" "-pie"; then +@@ -7515,7 +7514,6 @@ + echo "QEMU_CFLAGS += -Wbitwise -Wno-transparent-union -Wno-old-initializer -Wno-non-pointer-null" >> $config_host_mak + fi + echo "LDFLAGS=$LDFLAGS" >> $config_host_mak +-echo "LDFLAGS_NOPIE=$LDFLAGS_NOPIE" >> $config_host_mak + echo "QEMU_LDFLAGS=$QEMU_LDFLAGS" >> $config_host_mak + echo "LD_REL_FLAGS=$LD_REL_FLAGS" >> $config_host_mak + echo "LD_I386_EMULATION=$ld_i386_emulation" >> $config_host_mak +diff -ur a/pc-bios/optionrom/Makefile b/pc-bios/optionrom/Makefile +--- a/pc-bios/optionrom/Makefile 2023-10-05 04:04:34.143979321 +0000 ++++ b/pc-bios/optionrom/Makefile 2023-10-05 04:06:01.267530732 +0000 +@@ -47,10 +47,10 @@ + $(call quiet-command,$(CPP) $(QEMU_INCLUDES) $(QEMU_DGFLAGS) -c -o - $< | $(AS) $(ASFLAGS) -o $@,"AS","$(TARGET_DIR)$@") + + pvh.img: pvh.o pvh_main.o +- $(call quiet-command,$(LD) $(LDFLAGS_NOPIE) -m $(LD_I386_EMULATION) -T $(SRC_PATH)/pc-bios/optionrom/flat.lds -s -o $@ $^,"BUILD","$(TARGET_DIR)$@") ++ $(call quiet-command,$(LD) -m $(LD_I386_EMULATION) -T $(SRC_PATH)/pc-bios/optionrom/flat.lds -s -o $@ $^,"BUILD","$(TARGET_DIR)$@") + + %.img: %.o +- $(call quiet-command,$(LD) $(LDFLAGS_NOPIE) -m $(LD_I386_EMULATION) -T $(SRC_PATH)/pc-bios/optionrom/flat.lds -s -o $@ $<,"BUILD","$(TARGET_DIR)$@") ++ $(call quiet-command,$(LD) -m $(LD_I386_EMULATION) -T $(SRC_PATH)/pc-bios/optionrom/flat.lds -s -o $@ $<,"BUILD","$(TARGET_DIR)$@") + + %.raw: %.img + $(call quiet-command,$(OBJCOPY) -O binary -j .text $< $@,"BUILD","$(TARGET_DIR)$@") -- cgit v1.2.3-70-g09d2