diff options
Diffstat (limited to 'user/grub/x86_64_asm.patch')
| -rw-r--r-- | user/grub/x86_64_asm.patch | 73 |
1 files changed, 73 insertions, 0 deletions
diff --git a/user/grub/x86_64_asm.patch b/user/grub/x86_64_asm.patch new file mode 100644 index 000000000..9ce48165d --- /dev/null +++ b/user/grub/x86_64_asm.patch @@ -0,0 +1,73 @@ +From 842c390469e2c2e10b5aa36700324cd3bde25875 Mon Sep 17 00:00:00 2001 +From: "H.J. Lu" <hjl.tools@gmail.com> +Date: Sat, 17 Feb 2018 06:47:28 -0800 +Subject: [PATCH] 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 <hjl.tools@gmail.com> +Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com> +--- + 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 e49d0b6..18facf4 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 4406906..3a73e6e 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 a2bb054..39d7efb 100644 +--- a/util/grub-mkimagexx.c ++++ b/util/grub-mkimagexx.c +@@ -841,6 +841,7 @@ 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 9179285..a79271f 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 + } + }, +-- +1.9.1 + |