1 files changed, 43 insertions, 0 deletions
diff --git a/sys-firmware/edk2-ovmf/files/edk2-ovmf-202202-lld-textrels.patch b/sys-firmware/edk2-ovmf/files/edk2-ovmf-202202-lld-textrels.patch
new file mode 100644
index 000000000000..eb8b6296fcff
--- /dev/null
+++ b/sys-firmware/edk2-ovmf/files/edk2-ovmf-202202-lld-textrels.patch
@@ -0,0 +1,43 @@
+https://bugs.gentoo.org/913110
+https://github.com/tianocore/edk2/commit/a257988f590ba90dd8394dd6bc7014ae9d814a08
+
+From a257988f590ba90dd8394dd6bc7014ae9d814a08 Mon Sep 17 00:00:00 2001
+From: Ard Biesheuvel <ardb@kernel.org>
+Date: Mon, 3 Apr 2023 22:29:15 +0800
+Subject: [PATCH] BaseTools/tools_def CLANGDWARF: Permit text relocations
+
+We rely on PIE executables to get the codegen that is suitable for
+PE/COFF conversion where the resulting executables can be loaded
+anywhere in the address space.
+
+However, ELF linkers may default to disallowing text relocations in PIE
+executables, as this would require text segments to be updated at
+runtime, which is bad for security and increases the copy-on-write
+footprint of ELF executables and shared libraries.
+
+However, none of those concerns apply to PE/COFF executables in the
+context of EFI, which are copied into memory rather than mmap()'ed, and
+fixed up by the loader before launch.
+
+So pass -z notext to the LLD linker to permit runtime relocations in
+read-only sections.
+
+Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
+Reviewed-by: Rebecca Cran <rebecca@bsdio.com>
+---
+ BaseTools/Conf/tools_def.template | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/BaseTools/Conf/tools_def.template b/BaseTools/Conf/tools_def.template
+index 39c49b8001f4..9a5c11f6a385 100755
+--- a/BaseTools/Conf/tools_def.template
++++ b/BaseTools/Conf/tools_def.template
+@@ -2870,7 +2870,7 @@ DEFINE CLANGDWARF_X64_PREFIX        = ENV(CLANG_BIN)
+ DEFINE CLANGDWARF_IA32_X64_DLINK_COMMON   = -nostdlib -Wl,-q,--gc-sections -z max-page-size=0x40
+ DEFINE CLANGDWARF_DLINK2_FLAGS_COMMON     = -Wl,--script=$(EDK_TOOLS_PATH)/Scripts/ClangBase.lds
+ DEFINE CLANGDWARF_IA32_X64_ASLDLINK_FLAGS = DEF(CLANGDWARF_IA32_X64_DLINK_COMMON) -Wl,--defsym=PECOFF_HEADER_SIZE=0 DEF(CLANGDWARF_DLINK2_FLAGS_COMMON) -Wl,--entry,ReferenceAcpiTable -u ReferenceAcpiTable
+-DEFINE CLANGDWARF_IA32_X64_DLINK_FLAGS    = DEF(CLANGDWARF_IA32_X64_DLINK_COMMON) -Wl,--entry,$(IMAGE_ENTRY_POINT) -u $(IMAGE_ENTRY_POINT) -Wl,-Map,$(DEST_DIR_DEBUG)/$(BASE_NAME).map,--whole-archive
++DEFINE CLANGDWARF_IA32_X64_DLINK_FLAGS    = DEF(CLANGDWARF_IA32_X64_DLINK_COMMON) -Wl,--entry,$(IMAGE_ENTRY_POINT) -u $(IMAGE_ENTRY_POINT) -Wl,-Map,$(DEST_DIR_DEBUG)/$(BASE_NAME).map,--whole-archive -Wl,-z,notext
+ DEFINE CLANGDWARF_IA32_DLINK2_FLAGS       = -Wl,--defsym=PECOFF_HEADER_SIZE=0x220 DEF(CLANGDWARF_DLINK2_FLAGS_COMMON)
+ DEFINE CLANGDWARF_X64_DLINK2_FLAGS        = -Wl,--defsym=PECOFF_HEADER_SIZE=0x228 DEF(CLANGDWARF_DLINK2_FLAGS_COMMON)
+