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authorArd Biesheuvel <ard.biesheuvel@linaro.org>2014-07-02 14:54:43 +0200
committerMatt Fleming <matt.fleming@intel.com>2014-07-18 21:22:19 +0100
commitf4f75ad5741fe0331bbe1f5c42b906cda299f26b (patch)
tree0f06f0b7ecc94bc930a952dd79763adc94b34fda /arch/x86/boot
parentbd669475d14e3279a7f96ed917a82df5da6ad52d (diff)
downloadop-kernel-dev-f4f75ad5741fe0331bbe1f5c42b906cda299f26b.zip
op-kernel-dev-f4f75ad5741fe0331bbe1f5c42b906cda299f26b.tar.gz
efi: efistub: Convert into static library
This patch changes both x86 and arm64 efistub implementations from #including shared .c files under drivers/firmware/efi to building shared code as a static library. The x86 code uses a stub built into the boot executable which uncompresses the kernel at boot time. In this case, the library is linked into the decompressor. In the arm64 case, the stub is part of the kernel proper so the library is linked into the kernel proper as well. Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> Signed-off-by: Matt Fleming <matt.fleming@intel.com>
Diffstat (limited to 'arch/x86/boot')
-rw-r--r--arch/x86/boot/compressed/Makefile3
-rw-r--r--arch/x86/boot/compressed/eboot.c2
2 files changed, 2 insertions, 3 deletions
diff --git a/arch/x86/boot/compressed/Makefile b/arch/x86/boot/compressed/Makefile
index 0fcd913..7a801a3 100644
--- a/arch/x86/boot/compressed/Makefile
+++ b/arch/x86/boot/compressed/Makefile
@@ -33,7 +33,8 @@ VMLINUX_OBJS = $(obj)/vmlinux.lds $(obj)/head_$(BITS).o $(obj)/misc.o \
$(obj)/eboot.o: KBUILD_CFLAGS += -fshort-wchar -mno-red-zone
ifeq ($(CONFIG_EFI_STUB), y)
- VMLINUX_OBJS += $(obj)/eboot.o $(obj)/efi_stub_$(BITS).o
+ VMLINUX_OBJS += $(obj)/eboot.o $(obj)/efi_stub_$(BITS).o \
+ $(objtree)/drivers/firmware/efi/libstub/lib.a
endif
$(obj)/vmlinux: $(VMLINUX_OBJS) FORCE
diff --git a/arch/x86/boot/compressed/eboot.c b/arch/x86/boot/compressed/eboot.c
index 916bbdd..3b5c66c 100644
--- a/arch/x86/boot/compressed/eboot.c
+++ b/arch/x86/boot/compressed/eboot.c
@@ -280,8 +280,6 @@ void efi_char16_printk(efi_system_table_t *table, efi_char16_t *str)
}
}
-#include "../../../../drivers/firmware/efi/efi-stub-helper.c"
-
static void find_bits(unsigned long mask, u8 *pos, u8 *size)
{
u8 first, len;
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