From: Ard Biesheuvel <ardb@kernel.org>
To: linux-efi@vger.kernel.org
Cc: keescook@chromium.org, Ard Biesheuvel <ardb@kernel.org>,
Matthew Garrett <mjg59@srcf.ucam.org>,
Peter Jones <pjones@redhat.com>,
Ilias Apalodimas <ilias.apalodimas@linaro.org>,
Palmer Dabbelt <palmer@dabbelt.com>,
Atish Patra <atishp@atishpatra.org>,
Arnd Bergmann <arnd@arndb.de>,
Huacai Chen <chenhuacai@loongson.cn>,
Xi Ruoyao <xry111@xry111.site>,
Lennart Poettering <lennart@poettering.net>,
Jeremy Linton <jeremy.linton@arm.com>,
Will Deacon <will@kernel.org>,
Catalin Marinas <catalin.marinas@arm.com>
Subject: [PATCH 03/21] arm64: efi: Move efi-entry.S into the libstub source directory
Date: Mon, 17 Oct 2022 19:16:42 +0200 [thread overview]
Message-ID: <20221017171700.3736890-4-ardb@kernel.org> (raw)
In-Reply-To: <20221017171700.3736890-1-ardb@kernel.org>
We will be sharing efi-entry.S with the zboot decompressor build, which
does not link against vmlinux directly. So move it into the libstub
source directory so we can include in the libstub static library.
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
---
arch/arm64/kernel/Makefile | 9 +--------
drivers/firmware/efi/libstub/Makefile | 4 ++--
arch/arm64/kernel/efi-entry.S => drivers/firmware/efi/libstub/arm64-entry.S | 4 ----
3 files changed, 3 insertions(+), 14 deletions(-)
diff --git a/arch/arm64/kernel/Makefile b/arch/arm64/kernel/Makefile
index 2f361a883d8c..2a3b0e4950f2 100644
--- a/arch/arm64/kernel/Makefile
+++ b/arch/arm64/kernel/Makefile
@@ -36,12 +36,6 @@ obj-y := debug-monitors.o entry.o irq.o fpsimd.o \
syscall.o proton-pack.o idreg-override.o idle.o \
patching.o
-targets += efi-entry.o
-
-OBJCOPYFLAGS := --prefix-symbols=__efistub_
-$(obj)/%.stub.o: $(obj)/%.o FORCE
- $(call if_changed,objcopy)
-
obj-$(CONFIG_COMPAT) += sys32.o signal32.o \
sys_compat.o
obj-$(CONFIG_COMPAT) += sigreturn32.o
@@ -57,8 +51,7 @@ obj-$(CONFIG_CPU_PM) += sleep.o suspend.o
obj-$(CONFIG_CPU_IDLE) += cpuidle.o
obj-$(CONFIG_JUMP_LABEL) += jump_label.o
obj-$(CONFIG_KGDB) += kgdb.o
-obj-$(CONFIG_EFI) += efi.o efi-entry.stub.o \
- efi-rt-wrapper.o
+obj-$(CONFIG_EFI) += efi.o efi-rt-wrapper.o
obj-$(CONFIG_PCI) += pci.o
obj-$(CONFIG_ARMV8_DEPRECATED) += armv8_deprecated.o
obj-$(CONFIG_ACPI) += acpi.o
diff --git a/drivers/firmware/efi/libstub/Makefile b/drivers/firmware/efi/libstub/Makefile
index b1601aad7e1a..efc8cefab889 100644
--- a/drivers/firmware/efi/libstub/Makefile
+++ b/drivers/firmware/efi/libstub/Makefile
@@ -82,7 +82,7 @@ $(obj)/lib-%.o: $(srctree)/lib/%.c FORCE
lib-$(CONFIG_EFI_GENERIC_STUB) += efi-stub.o string.o intrinsics.o systable.o
lib-$(CONFIG_ARM) += arm32-stub.o
-lib-$(CONFIG_ARM64) += arm64-stub.o
+lib-$(CONFIG_ARM64) += arm64-stub.o arm64-entry.o
lib-$(CONFIG_X86) += x86-stub.o
lib-$(CONFIG_RISCV) += riscv-stub.o
lib-$(CONFIG_LOONGARCH) += loongarch-stub.o
@@ -136,7 +136,7 @@ STUBCOPY_RELOC-$(CONFIG_ARM) := R_ARM_ABS
#
STUBCOPY_FLAGS-$(CONFIG_ARM64) += --prefix-alloc-sections=.init \
--prefix-symbols=__efistub_
-STUBCOPY_RELOC-$(CONFIG_ARM64) := R_AARCH64_ABS
+STUBCOPY_RELOC-$(CONFIG_ARM64) := R_AARCH64_ABS64
# For RISC-V, we don't need anything special other than arm64. Keep all the
# symbols in .init section and make sure that no absolute symbols references
diff --git a/arch/arm64/kernel/efi-entry.S b/drivers/firmware/efi/libstub/arm64-entry.S
similarity index 97%
rename from arch/arm64/kernel/efi-entry.S
rename to drivers/firmware/efi/libstub/arm64-entry.S
index 8bce13356e29..87082b222a87 100644
--- a/arch/arm64/kernel/efi-entry.S
+++ b/drivers/firmware/efi/libstub/arm64-entry.S
@@ -6,12 +6,8 @@
* Author: Mark Salter <msalter@redhat.com>
*/
#include <linux/linkage.h>
-#include <linux/init.h>
-
#include <asm/assembler.h>
- __INIT
-
SYM_CODE_START(efi_enter_kernel)
/*
* efi_pe_entry() will have copied the kernel image if necessary and we
--
2.35.1
next prev parent reply other threads:[~2022-10-17 17:17 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-10-17 17:16 [PATCH 00/21] efi: Combine stub functionality with zboot decompressor Ard Biesheuvel
2022-10-17 17:16 ` [PATCH 01/21] arm64: efi: Move dcache cleaning of loaded image out of efi_enter_kernel() Ard Biesheuvel
2022-10-18 11:27 ` Catalin Marinas
2022-10-18 11:38 ` Ard Biesheuvel
2022-10-18 11:54 ` Catalin Marinas
2022-10-17 17:16 ` [PATCH 02/21] arm64: efi: Avoid dcache_clean_poc() altogether in efi_enter_kernel() Ard Biesheuvel
2022-10-18 11:57 ` Catalin Marinas
2022-10-18 11:59 ` Ard Biesheuvel
2022-10-17 17:16 ` Ard Biesheuvel [this message]
2022-10-18 11:57 ` [PATCH 03/21] arm64: efi: Move efi-entry.S into the libstub source directory Catalin Marinas
2022-10-17 17:16 ` [PATCH 04/21] efi: libstub: Remove zboot signing from build options Ard Biesheuvel
2022-10-17 17:16 ` [PATCH 05/21] efi: libstub: Drop randomization of runtime memory map Ard Biesheuvel
2022-10-17 17:16 ` [PATCH 06/21] efi: libstub: Drop handling of EFI properties table Ard Biesheuvel
2022-10-17 17:16 ` [PATCH 07/21] efi: libstub: Deduplicate ftrace command line argument filtering Ard Biesheuvel
2022-10-17 17:16 ` [PATCH 08/21] efi: libstub: Use local strncmp() implementation unconditionally Ard Biesheuvel
2022-10-17 17:16 ` [PATCH 09/21] efi: libstub: Clone memcmp() into the stub Ard Biesheuvel
2022-10-17 17:16 ` [PATCH 10/21] efi: libstub: Enable efi_printk() in zboot decompressor Ard Biesheuvel
2022-10-17 17:16 ` [PATCH 11/21] efi: loongarch: Drop exports of unused string routines Ard Biesheuvel
2022-10-17 17:16 ` [PATCH 12/21] efi: libstub: Move screen_info handling to common code Ard Biesheuvel
2022-10-17 17:16 ` [PATCH 13/21] efi: libstub: Provide local implementations of strrchr() and memchr() Ard Biesheuvel
2022-10-17 17:16 ` [PATCH 14/21] efi: libstub: Factor out EFI stub entrypoint into separate file Ard Biesheuvel
2022-10-17 17:16 ` [PATCH 15/21] efi: libstub: Add image code and data size to the zimage metadata Ard Biesheuvel
2022-10-17 17:16 ` [PATCH 16/21] efi: libstub: Factor out min alignment and preferred kernel load address Ard Biesheuvel
2022-10-17 17:16 ` [PATCH 17/21] efi/riscv: libstub: Split off kernel image relocation for builtin stub Ard Biesheuvel
2022-10-17 17:16 ` [PATCH 18/21] efi/arm64: " Ard Biesheuvel
2022-10-17 17:16 ` [PATCH 19/21] efi/loongarch: Don't jump to kernel entry via the old image Ard Biesheuvel
2022-10-17 17:16 ` [PATCH 20/21] efi/loongarch: libstub: Split off kernel image relocation for builtin stub Ard Biesheuvel
2022-10-17 17:17 ` [PATCH 21/21] efi: libstub: Merge zboot decompressor with the ordinary stub Ard Biesheuvel
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