From 4987d0ed19a3e485a584899a6424f76813982f7a Mon Sep 17 00:00:00 2001 From: Michael Tremer Date: Sat, 27 Apr 2019 03:58:44 +0100 Subject: [PATCH] grub: Fix relocation type issue Signed-off-by: Michael Tremer --- lfs/grub | 1 + src/patches/grub-2.02-X86_64_PLT32.patch | 75 ++++++++++++++++++++++++ 2 files changed, 76 insertions(+) create mode 100644 src/patches/grub-2.02-X86_64_PLT32.patch diff --git a/lfs/grub b/lfs/grub index 56cc9b5577..67a9e1002e 100644 --- a/lfs/grub +++ b/lfs/grub @@ -101,6 +101,7 @@ $(TARGET) : $(patsubst %,$(DIR_DL)/%,$(objects)) cd $(DIR_APP) && patch -Np1 < $(DIR_SRC)/src/patches/grub-2.02_disable_vga_fallback.patch cd $(DIR_APP) && patch -Np1 < $(DIR_SRC)/src/patches/grub-2.02-xfs-accept-filesystem-with-sparse-inodes.patch cd $(DIR_APP) && patch -Np1 < $(DIR_SRC)/src/patches/grub-2.02-fix-packed-not-aligned-error-on-gcc-8.patch + cd $(DIR_APP) && patch -Np1 < $(DIR_SRC)/src/patches/grub-2.02-X86_64_PLT32.patch # Install unifont cp -v $(DIR_DL)/unifont-7.0.03.pcf.gz $(DIR_APP)/unifont.pcf.gz diff --git a/src/patches/grub-2.02-X86_64_PLT32.patch b/src/patches/grub-2.02-X86_64_PLT32.patch new file mode 100644 index 0000000000..2c65cb78a5 --- /dev/null +++ b/src/patches/grub-2.02-X86_64_PLT32.patch @@ -0,0 +1,75 @@ +From 02702bdfe14d8a04643a45b03715f734ae34dbac Mon Sep 17 00:00:00 2001 +From: "H.J. Lu" +Date: Sat, 17 Feb 2018 06:47:28 -0800 +Subject: x86-64: Treat R_X86_64_PLT32 as R_X86_64_PC32 + +Starting from binutils commit bd7ab16b4537788ad53521c45469a1bdae84ad4a: + +https://sourceware.org/git/?p=binutils-gdb.git;a=commit;h=bd7ab16b4537788ad53521c45469a1bdae84ad4a + +x86-64 assembler generates R_X86_64_PLT32, instead of R_X86_64_PC32, for +32-bit PC-relative branches. Grub2 should treat R_X86_64_PLT32 as +R_X86_64_PC32. + +Signed-off-by: H.J. Lu +Reviewed-by: Daniel Kiper + +Origin: upstream, https://git.savannah.gnu.org/cgit/grub.git/commit/?id=842c390469e2c2e10b5aa36700324cd3bde25875 +Last-Update: 2018-07-30 + +Patch-Name: R_X86_64_PLT32.patch +--- + grub-core/efiemu/i386/loadcore64.c | 1 + + grub-core/kern/x86_64/dl.c | 1 + + util/grub-mkimagexx.c | 1 + + util/grub-module-verifier.c | 1 + + 4 files changed, 4 insertions(+) + +diff --git a/grub-core/efiemu/i386/loadcore64.c b/grub-core/efiemu/i386/loadcore64.c +index e49d0b6ff..18facf47f 100644 +--- a/grub-core/efiemu/i386/loadcore64.c ++++ b/grub-core/efiemu/i386/loadcore64.c +@@ -98,6 +98,7 @@ grub_arch_efiemu_relocate_symbols64 (grub_efiemu_segment_t segs, + break; + + case R_X86_64_PC32: ++ case R_X86_64_PLT32: + err = grub_efiemu_write_value (addr, + *addr32 + rel->r_addend + + sym.off +diff --git a/grub-core/kern/x86_64/dl.c b/grub-core/kern/x86_64/dl.c +index 440690673..3a73e6e6c 100644 +--- a/grub-core/kern/x86_64/dl.c ++++ b/grub-core/kern/x86_64/dl.c +@@ -70,6 +70,7 @@ grub_arch_dl_relocate_symbols (grub_dl_t mod, void *ehdr, + break; + + case R_X86_64_PC32: ++ case R_X86_64_PLT32: + { + grub_int64_t value; + value = ((grub_int32_t) *addr32) + rel->r_addend + sym->st_value - +diff --git a/util/grub-mkimagexx.c b/util/grub-mkimagexx.c +index e63f148e4..f20255a28 100644 +--- a/util/grub-mkimagexx.c ++++ b/util/grub-mkimagexx.c +@@ -832,6 +832,7 @@ SUFFIX (relocate_addresses) (Elf_Ehdr *e, Elf_Shdr *sections, + break; + + case R_X86_64_PC32: ++ case R_X86_64_PLT32: + { + grub_uint32_t *t32 = (grub_uint32_t *) target; + *t32 = grub_host_to_target64 (grub_target_to_host32 (*t32) +diff --git a/util/grub-module-verifier.c b/util/grub-module-verifier.c +index 9179285a5..a79271f66 100644 +--- a/util/grub-module-verifier.c ++++ b/util/grub-module-verifier.c +@@ -19,6 +19,7 @@ struct grub_module_verifier_arch archs[] = { + -1 + }, (int[]){ + R_X86_64_PC32, ++ R_X86_64_PLT32, + -1 + } + }, -- 2.39.5