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authorJean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>2017-02-15 20:34:15 +0100
committerSascha Hauer <s.hauer@pengutronix.de>2017-02-27 08:33:14 +0100
commit4c29a9511b0d95780c914d1b4277dae4061786d2 (patch)
tree88ce3440f17aff14fde1ffc5b4026c202955f8d4 /arch/x86
parent64db2d497ca4e1db7be08e303c17ed92c99af897 (diff)
downloadbarebox-4c29a9511b0d95780c914d1b4277dae4061786d2.tar.gz
efi: move x86 efi boot support to x86 arch
prepare to drop the efi arch as efi boot up is not arch sepecific Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Diffstat (limited to 'arch/x86')
-rw-r--r--arch/x86/Kconfig53
-rw-r--r--arch/x86/Makefile74
-rw-r--r--arch/x86/configs/efi_defconfig78
-rw-r--r--arch/x86/configs/generic_defconfig1
-rw-r--r--arch/x86/include/asm/elf.h74
-rw-r--r--arch/x86/include/asm/io.h71
-rw-r--r--arch/x86/include/asm/types.h51
-rw-r--r--arch/x86/include/asm/unaligned.h5
-rw-r--r--arch/x86/lib/Makefile2
-rw-r--r--arch/x86/lib/asm-offsets.c7
-rw-r--r--arch/x86/mach-efi/.gitignore2
-rw-r--r--arch/x86/mach-efi/Makefile4
-rw-r--r--arch/x86/mach-efi/crt0-efi-ia32.S76
-rw-r--r--arch/x86/mach-efi/crt0-efi-x86_64.S75
-rw-r--r--arch/x86/mach-efi/elf_ia32_efi.lds.S106
-rw-r--r--arch/x86/mach-efi/elf_x86_64_efi.lds.S99
-rw-r--r--arch/x86/mach-efi/include/mach/barebox.lds.h1
-rw-r--r--arch/x86/mach-efi/include/mach/debug_ll.h1
-rw-r--r--arch/x86/mach-efi/reloc_ia32.c97
-rw-r--r--arch/x86/mach-efi/reloc_x86_64.c96
20 files changed, 883 insertions, 90 deletions
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index 346640d..9803f3f 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -1,9 +1,16 @@
#
#
#
+config X86
+ bool
+ select HAS_KALLSYMS
+ select GENERIC_FIND_NEXT_BIT
+ default y
+
config ARCH_TEXT_BASE
hex
default 0x00007c00 if MACH_X86_GENERIC
+ default 0x0 if MACH_EFI_GENERIC
config BOARD_LINKER_SCRIPT
bool
@@ -14,17 +21,33 @@ config GENERIC_LINKER_SCRIPT
default y
depends on !BOARD_LINKER_SCRIPT
-config X86
+menu "ARCH specific settings"
+
+config 64BIT
+ def_bool y if X86_EFI
+ help
+ Say yes to build a 64-bit binary - formerly known as x86_64
+ Say no to build a 32-bit binary - formerly known as i386.
+
+ 32-bit support currently does not compile and is not tested
+ due to the lack of hardware.
+
+config X86_32
+ def_bool y
+ depends on !64BIT
+
+config X86_64
+ def_bool y
+ depends on 64BIT
+
+endmenu
+
+config X86_BOOTLOADER
bool
- select HAS_KALLSYMS
+ select X86_32
select HAS_MODULES
select HAVE_CONFIGURABLE_MEMORY_LAYOUT
select HAVE_CONFIGURABLE_TEXT_BASE
- select GENERIC_FIND_NEXT_BIT
- default y
-
-config X86_BOOTLOADER
- bool
choice
prompt "Select your board"
@@ -32,14 +55,30 @@ choice
config MACH_X86_GENERIC
bool "Generic x86"
select X86_BOOTLOADER
+ depends on !X86_EFI
help
Say Y here if you want barebox to be your BIOS based bootloader
+config MACH_EFI_GENERIC
+ bool "Generic EFI"
+ depends on X86_EFI
+ select HAS_DEBUG_LL
+ help
+ Say Y here if you want barebox to be your EFI based bootloader
+
endchoice
choice
prompt "Bring up type"
+ config X86_EFI
+ bool "EFI"
+ select EFI_BOOTUP
+ select EFI_GUID
+ select EFI_DEVICEPATH
+ select PRINTF_UUID
+ select CLOCKSOURCE_EFI
+
config X86_BIOS_BRINGUP
bool "16 bit BIOS"
help
diff --git a/arch/x86/Makefile b/arch/x86/Makefile
index 640c24b..e837a2d 100644
--- a/arch/x86/Makefile
+++ b/arch/x86/Makefile
@@ -1,20 +1,47 @@
KBUILD_DEFCONFIG := generic_defconfig
-CPPFLAGS += -D__X86__ -fno-strict-aliasing
+CPPFLAGS += -D__X86__
-board-y := x86_generic
-machine-y := i386
+board-$(CONFIG_MACH_X86_GENERIC) := x86_generic
TEXT_BASE = $(CONFIG_TEXT_BASE)
-CPPFLAGS += -march=i386 -m32 -DTEXT_BASE=$(TEXT_BASE) \
+ifeq ($(CONFIG_X86_EFI),y)
+machine-y := efi
+CFLAGS += -fpic -fshort-wchar -mno-sse -mno-mmx
+ifeq ($(CONFIG_X86_32),y)
+ TARGET = efi-app-ia32
+else
+ TARGET = efi-app-x86_64
+endif
+else
+CPPFLAGS += -fno-strict-aliasing
+CPPFLAGS += -march=i386 -DTEXT_BASE=$(TEXT_BASE) \
-fno-unwind-tables -fno-asynchronous-unwind-tables
-LDFLAGS += -m elf_i386
+
+machine-y := i386
+endif
+
+ifeq ($(CONFIG_X86_32),y)
+ UTS_MACHINE := i386
+ biarch := $(call cc-option,-m32)
+ AFLAGS += $(biarch)
+ CFLAGS += $(biarch)
+ CPPFLAGS += $(biarch)
+else
+ UTS_MACHINE := x86_64
+ AFLAGS += -m64
+ CFLAGS += -m64 -mno-red-zone
+ CPPFLAGS += -m64
+endif
+
ifndef CONFIG_MODULES
# Add cleanup flags
+ifneq ($(CONFIG_X86_EFI),y)
CPPFLAGS += -fdata-sections -ffunction-sections
-LDFLAGS_uboot += -static --gc-sections
+LDFLAGS_barebox += -static --gc-sections
+endif
endif
machdirs := $(patsubst %,arch/x86/mach-%/,$(machine-y))
@@ -39,13 +66,46 @@ endif
common-y += $(BOARD) $(MACH)
common-y += arch/x86/lib/
-common-y += arch/x86/boot/
common-$(CONFIG_X86_BIOS_BRINGUP) += arch/x86/bios/
# arch/x86/cpu/
+ifeq ($(CONFIG_X86_EFI),y)
+lds-$(CONFIG_X86_32) := arch/x86/mach-efi/elf_ia32_efi.lds
+lds-$(CONFIG_X86_64) := arch/x86/mach-efi/elf_x86_64_efi.lds
+
+cmd_barebox__ ?= $(LD) $(LDFLAGS) $(LDFLAGS_barebox) -o $@ \
+ -T $(lds-y) \
+ -shared -Bsymbolic -nostdlib -znocombreloc \
+ --start-group $(barebox-common) \
+ --end-group \
+ $(filter-out $(barebox-lds) $(barebox-common) FORCE ,$^)
+
+quiet_cmd_efi_image = EFI-IMG $@
+ cmd_efi_image = $(OBJCOPY) -j .text -j .sdata -j .data -j .dynamic \
+ -j .dynsym -j .rel -j .rela -j .reloc -j __barebox_initcalls \
+ -j __barebox_cmd -j .barebox_magicvar -j .bbenv.* \
+ --target=$(TARGET) $< $@
+
+KBUILD_BINARY := barebox
+
+LDFLAGS := --no-undefined
+
+barebox.efi: $(KBUILD_BINARY) FORCE
+ $(call if_changed,efi_image)
+
+KBUILD_IMAGE := barebox.efi
+
+else
+common-y += arch/x86/boot/
+
lds-$(CONFIG_GENERIC_LINKER_SCRIPT) := arch/x86/lib/barebox.lds
lds-$(CONFIG_BOARD_LINKER_SCRIPT) := $(BOARD)/barebox.lds
+endif
+
+LDFLAGS += -m elf_$(UTS_MACHINE)
+
+CLEAN_FILES += $(lds-y)
CLEAN_FILES += arch/x86/lib/barebox.lds barebox.map barebox.S
diff --git a/arch/x86/configs/efi_defconfig b/arch/x86/configs/efi_defconfig
new file mode 100644
index 0000000..3f73322
--- /dev/null
+++ b/arch/x86/configs/efi_defconfig
@@ -0,0 +1,78 @@
+CONFIG_MMU=y
+CONFIG_MALLOC_SIZE=0x0
+CONFIG_MALLOC_TLSF=y
+CONFIG_HUSH_FANCY_PROMPT=y
+CONFIG_CMDLINE_EDITING=y
+CONFIG_AUTO_COMPLETE=y
+CONFIG_MENU=y
+# CONFIG_TIMESTAMP is not set
+CONFIG_BOOTM_SHOW_TYPE=y
+CONFIG_BOOTM_VERBOSE=y
+CONFIG_BOOTM_INITRD=y
+CONFIG_BOOTM_OFTREE=y
+CONFIG_BLSPEC=y
+CONFIG_CONSOLE_ACTIVATE_ALL=y
+CONFIG_PARTITION_DISK_EFI=y
+CONFIG_DEFAULT_ENVIRONMENT_GENERIC_NEW=y
+CONFIG_POLLER=y
+CONFIG_DEBUG_INFO=y
+CONFIG_DEBUG_LL=y
+CONFIG_LONGHELP=y
+CONFIG_CMD_IOMEM=y
+CONFIG_CMD_MEMINFO=y
+CONFIG_CMD_GO=y
+CONFIG_CMD_LOADB=y
+CONFIG_CMD_RESET=y
+CONFIG_CMD_UIMAGE=y
+CONFIG_CMD_PARTITION=y
+CONFIG_CMD_EXPORT=y
+CONFIG_CMD_LOADENV=y
+CONFIG_CMD_PRINTENV=y
+CONFIG_CMD_MAGICVAR=y
+CONFIG_CMD_MAGICVAR_HELP=y
+CONFIG_CMD_SAVEENV=y
+CONFIG_CMD_FILETYPE=y
+CONFIG_CMD_LN=y
+CONFIG_CMD_MD5SUM=y
+CONFIG_CMD_UNCOMPRESS=y
+CONFIG_CMD_LET=y
+CONFIG_CMD_MSLEEP=y
+CONFIG_CMD_READF=y
+CONFIG_CMD_SLEEP=y
+CONFIG_CMD_DHCP=y
+CONFIG_CMD_HOST=y
+CONFIG_CMD_PING=y
+CONFIG_CMD_TFTP=y
+CONFIG_CMD_ECHO_E=y
+CONFIG_CMD_EDIT=y
+CONFIG_CMD_MENU=y
+CONFIG_CMD_MENUTREE=y
+CONFIG_CMD_READLINE=y
+CONFIG_CMD_TIMEOUT=y
+CONFIG_CMD_CRC=y
+CONFIG_CMD_CRC_CMP=y
+CONFIG_CMD_MM=y
+CONFIG_CMD_DETECT=y
+CONFIG_CMD_FLASH=y
+CONFIG_CMD_2048=y
+CONFIG_CMD_BAREBOX_UPDATE=y
+CONFIG_CMD_OF_NODE=y
+CONFIG_CMD_OF_PROPERTY=y
+CONFIG_CMD_OFTREE=y
+CONFIG_CMD_TIME=y
+CONFIG_NET=y
+CONFIG_NET_NFS=y
+CONFIG_NET_NETCONSOLE=y
+CONFIG_DRIVER_SERIAL_EFI_STDIO=y
+CONFIG_DRIVER_SERIAL_NS16550=y
+CONFIG_DRIVER_NET_EFI_SNP=y
+# CONFIG_SPI is not set
+CONFIG_DISK=y
+CONFIG_FS_EXT4=y
+CONFIG_FS_TFTP=y
+CONFIG_FS_NFS=y
+CONFIG_FS_EFI=y
+CONFIG_FS_EFIVARFS=y
+CONFIG_FS_FAT=y
+CONFIG_FS_FAT_WRITE=y
+CONFIG_FS_FAT_LFN=y
diff --git a/arch/x86/configs/generic_defconfig b/arch/x86/configs/generic_defconfig
index 5ff7f53..3b94e02 100644
--- a/arch/x86/configs/generic_defconfig
+++ b/arch/x86/configs/generic_defconfig
@@ -1,3 +1,4 @@
+CONFIG_X86_BIOS_BRINGUP=y
CONFIG_X86_HDBOOT=y
CONFIG_STACK_SIZE=0x7000
CONFIG_EXPERIMENTAL=y
diff --git a/arch/x86/include/asm/elf.h b/arch/x86/include/asm/elf.h
index 94a40c6..ddde035 100644
--- a/arch/x86/include/asm/elf.h
+++ b/arch/x86/include/asm/elf.h
@@ -1,26 +1,60 @@
+#ifndef __ASM_SANDBOX_ELF_H__
+#define __ASM_SANDBOX_ELF_H__
+
+#ifdef __i386__
+
+typedef struct user_fxsr_struct elf_fpxregset_t;
+
+#define R_386_NONE 0
+#define R_386_32 1
+#define R_386_PC32 2
+#define R_386_GOT32 3
+#define R_386_PLT32 4
+#define R_386_COPY 5
+#define R_386_GLOB_DAT 6
+#define R_386_JMP_SLOT 7
+#define R_386_RELATIVE 8
+#define R_386_GOTOFF 9
+#define R_386_GOTPC 10
+#define R_386_NUM 11
+
/*
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- *
+ * These are used to set parameters in the core dumps.
*/
+#define ELF_CLASS ELFCLASS32
+#define ELF_DATA ELFDATA2LSB
+#define ELF_ARCH EM_386
-/**
- * @file
- * @brief x86 specific elf information
- *
- */
+#else
-#ifndef _ASM_X86_ELF_H
-#define _ASM_X86_ELF_H
+/* x86-64 relocation types */
+#define R_X86_64_NONE 0 /* No reloc */
+#define R_X86_64_64 1 /* Direct 64 bit */
+#define R_X86_64_PC32 2 /* PC relative 32 bit signed */
+#define R_X86_64_GOT32 3 /* 32 bit GOT entry */
+#define R_X86_64_PLT32 4 /* 32 bit PLT address */
+#define R_X86_64_COPY 5 /* Copy symbol at runtime */
+#define R_X86_64_GLOB_DAT 6 /* Create GOT entry */
+#define R_X86_64_JUMP_SLOT 7 /* Create PLT entry */
+#define R_X86_64_RELATIVE 8 /* Adjust by program base */
+#define R_X86_64_GOTPCREL 9 /* 32 bit signed pc relative
+ offset to GOT */
+#define R_X86_64_32 10 /* Direct 32 bit zero extended */
+#define R_X86_64_32S 11 /* Direct 32 bit sign extended */
+#define R_X86_64_16 12 /* Direct 16 bit zero extended */
+#define R_X86_64_PC16 13 /* 16 bit sign extended pc relative */
+#define R_X86_64_8 14 /* Direct 8 bit sign extended */
+#define R_X86_64_PC8 15 /* 8 bit sign extended pc relative */
+
+#define R_X86_64_NUM 16
+
+/*
+ * These are used to set parameters in the core dumps.
+ */
+#define ELF_CLASS ELFCLASS64
+#define ELF_DATA ELFDATA2LSB
+#define ELF_ARCH EM_X86_64
-#define ELF_CLASS ELFCLASS32
+#endif
-#endif /* _ASM_X86_ELF_H */
+#endif /* __ASM_SANDBOX_ELF_H__ */
diff --git a/arch/x86/include/asm/io.h b/arch/x86/include/asm/io.h
index f020510..df4bc99 100644
--- a/arch/x86/include/asm/io.h
+++ b/arch/x86/include/asm/io.h
@@ -12,44 +12,6 @@
#include <asm/byteorder.h>
-#define IO_SPACE_LIMIT 0xffff
-
-static inline void outb(unsigned char value, int port)
-{
- asm volatile("outb %b0, %w1" : : "a"(value), "Nd"(port));
-}
-
-static inline void outw(unsigned short value, int port)
-{
- asm volatile("outw %w0, %w1" : : "a"(value), "Nd"(port));
-}
-
-static inline void outl(unsigned long value, int port)
-{
- asm volatile("outl %0, %w1" : : "a"(value), "Nd"(port));
-}
-
-static inline unsigned char inb(int port)
-{
- unsigned char value;
- asm volatile("inb %w1, %b0" : "=a"(value) : "Nd"(port));
- return value;
-}
-
-static inline unsigned short inw(int port)
-{
- unsigned short value;
- asm volatile("inw %w1, %w0" : "=a"(value) : "Nd"(port));
- return value;
-}
-
-static inline unsigned long inl(int port)
-{
- unsigned long value;
- asm volatile("inl %w1, %0" : "=a"(value) : "Nd"(port));
- return value;
-}
-
#define build_mmio_read(name, size, type, reg, barrier) \
static inline type name(const volatile void *addr) \
{ type ret; asm volatile("mov" size " %1,%0":reg (ret) \
@@ -68,6 +30,39 @@ build_mmio_write(writeb, "b", unsigned char, "q", :"memory")
build_mmio_write(writew, "w", unsigned short, "r", :"memory")
build_mmio_write(writel, "l", unsigned int, "r", :"memory")
+#define BUILDIO(bwl, bw, type) \
+static inline void out##bwl(unsigned type value, int port) \
+{ \
+ asm volatile("out" #bwl " %" #bw "0, %w1" \
+ : : "a"(value), "Nd"(port)); \
+} \
+ \
+static inline unsigned type in##bwl(int port) \
+{ \
+ unsigned type value; \
+ asm volatile("in" #bwl " %w1, %" #bw "0" \
+ : "=a"(value) : "Nd"(port)); \
+ return value; \
+} \
+ \
+static inline void outs##bwl(int port, const void *addr, unsigned long count) \
+{ \
+ asm volatile("rep; outs" #bwl \
+ : "+S"(addr), "+c"(count) : "d"(port)); \
+} \
+ \
+static inline void ins##bwl(int port, void *addr, unsigned long count) \
+{ \
+ asm volatile("rep; ins" #bwl \
+ : "+D"(addr), "+c"(count) : "d"(port)); \
+}
+
+BUILDIO(b, b, char)
+BUILDIO(w, w, short)
+BUILDIO(l, , int)
+
+#define IO_SPACE_LIMIT 0xffff
+
/* do a tiny io delay */
static inline void io_delay(void)
{
diff --git a/arch/x86/include/asm/types.h b/arch/x86/include/asm/types.h
index 7349ba0..3caac39 100644
--- a/arch/x86/include/asm/types.h
+++ b/arch/x86/include/asm/types.h
@@ -1,21 +1,29 @@
+#ifndef __ASM_I386_TYPES_H
+#define __ASM_I386_TYPES_H
+
+#ifndef __ASSEMBLY__
+
+#ifdef __x86_64__
+/*
+ * This is used in dlmalloc. On X86_64 we need it to be
+ * 64 bit
+ */
+#define INTERNAL_SIZE_T unsigned long
+
/*
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- *
+ * This is a Kconfig variable in the Kernel, but we want to detect
+ * this during compile time, so we set it here.
*/
+#define CONFIG_PHYS_ADDR_T_64BIT
-#ifndef __ASM_X86_TYPES_H
-#define __ASM_X86_TYPES_H
+#endif
-#ifndef __ASSEMBLY__
+typedef unsigned short umode_t;
+
+/*
+ * __xx is ok: it doesn't pollute the POSIX namespace. Use these in the
+ * header files exported to user space
+ */
typedef __signed__ char __s8;
typedef unsigned char __u8;
@@ -26,8 +34,15 @@ typedef unsigned short __u16;
typedef __signed__ int __s32;
typedef unsigned int __u32;
+#if defined(__GNUC__) && !defined(__STRICT_ANSI__)
typedef __signed__ long long __s64;
typedef unsigned long long __u64;
+#endif
+
+/*
+ * These aren't exported outside the kernel to avoid name space clashes
+ */
+#ifdef __KERNEL__
typedef signed char s8;
typedef unsigned char u8;
@@ -41,10 +56,10 @@ typedef unsigned int u32;
typedef signed long long s64;
typedef unsigned long long u64;
-typedef unsigned short umode_t;
+#include <asm/bitsperlong.h>
-#include <asm-generic/bitsperlong.h>
+#endif /* __KERNEL__ */
-#endif /* __ASSEMBLY__ */
+#endif
-#endif /* __ASM_X86_TYPES_H */
+#endif
diff --git a/arch/x86/include/asm/unaligned.h b/arch/x86/include/asm/unaligned.h
index a7bd416..7e38706 100644
--- a/arch/x86/include/asm/unaligned.h
+++ b/arch/x86/include/asm/unaligned.h
@@ -8,7 +8,12 @@
#include <linux/unaligned/access_ok.h>
#include <linux/unaligned/generic.h>
+#if __BYTE_ORDER == __LITTLE_ENDIAN
#define get_unaligned __get_unaligned_le
#define put_unaligned __put_unaligned_le
+#else
+#define get_unaligned __get_unaligned_be
+#define put_unaligned __put_unaligned_be
+#endif
#endif /* _ASM_X86_UNALIGNED_H */
diff --git a/arch/x86/lib/Makefile b/arch/x86/lib/Makefile
index 6054b9e..05e43f0 100644
--- a/arch/x86/lib/Makefile
+++ b/arch/x86/lib/Makefile
@@ -1,6 +1,8 @@
extra-$(CONFIG_GENERIC_LINKER_SCRIPT) += barebox.lds
+ifneq ($(CONFIG_X86_EFI),y)
obj-y += memory.o
obj-y += gdt.o
+endif
# needed, when running via a 16 bit BIOS
obj-$(CONFIG_CMD_LINUX16) += linux_start.o
diff --git a/arch/x86/lib/asm-offsets.c b/arch/x86/lib/asm-offsets.c
index b1be3e5..0f9c47e 100644
--- a/arch/x86/lib/asm-offsets.c
+++ b/arch/x86/lib/asm-offsets.c
@@ -6,6 +6,13 @@
#include <linux/kbuild.h>
+#ifdef CONFIG_EFI_BOOTUP
+int main(void)
+{
+ return 0;
+}
+#else
void common(void)
{
}
+#endif
diff --git a/arch/x86/mach-efi/.gitignore b/arch/x86/mach-efi/.gitignore
new file mode 100644
index 0000000..847e317
--- /dev/null
+++ b/arch/x86/mach-efi/.gitignore
@@ -0,0 +1,2 @@
+elf_x86_64_efi.lds
+elf_ia32_efi.lds
diff --git a/arch/x86/mach-efi/Makefile b/arch/x86/mach-efi/Makefile
new file mode 100644
index 0000000..c8a97ba
--- /dev/null
+++ b/arch/x86/mach-efi/Makefile
@@ -0,0 +1,4 @@
+obj-$(CONFIG_X86_64) += reloc_x86_64.o crt0-efi-x86_64.o
+obj-$(CONFIG_X86_32) += reloc_ia32.o crt0-efi-ia32.o
+extra-$(CONFIG_X86_32) += elf_ia32_efi.lds
+extra-$(CONFIG_X86_64) += elf_x86_64_efi.lds
diff --git a/arch/x86/mach-efi/crt0-efi-ia32.S b/arch/x86/mach-efi/crt0-efi-ia32.S
new file mode 100644
index 0000000..6f0f2e8
--- /dev/null
+++ b/arch/x86/mach-efi/crt0-efi-ia32.S
@@ -0,0 +1,76 @@
+/* crt0-efi-ia32.S - x86 EFI startup code.
+ Copyright (C) 1999 Hewlett-Packard Co.
+ Contributed by David Mosberger <davidm@hpl.hp.com>.
+
+ All rights reserved.
+
+ Redistribution and use in source and binary forms, with or without
+ modification, are permitted provided that the following conditions
+ are met:
+
+ * Redistributions of source code must retain the above copyright
+ notice, this list of conditions and the following disclaimer.
+ * Redistributions in binary form must reproduce the above
+ copyright notice, this list of conditions and the following
+ disclaimer in the documentation and/or other materials
+ provided with the distribution.
+ * Neither the name of Hewlett-Packard Co. nor the names of its
+ contributors may be used to endorse or promote products derived
+ from this software without specific prior written permission.
+
+ THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
+ CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
+ INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
+ BE LIABLE FOR ANYDIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
+ OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
+ TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
+ THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ SUCH DAMAGE.
+*/
+
+ .text
+ .align 4
+
+ .globl _start
+_start:
+ pushl %ebp
+ movl %esp,%ebp
+
+ pushl 12(%ebp) # copy "image" argument
+ pushl 8(%ebp) # copy "systab" argument
+
+ call 0f
+0: popl %eax
+ movl %eax,%ebx
+
+ addl $image_base-0b,%eax # %eax = ldbase
+ addl $_DYNAMIC-0b,%ebx # %ebx = _DYNAMIC
+
+ pushl %ebx # pass _DYNAMIC as second argument
+ pushl %eax # pass ldbase as first argument
+ call _relocate
+ popl %ebx
+ popl %ebx
+ testl %eax,%eax
+ jne .exit
+
+ call efi_main # call app with "image" and "systab" argument
+
+.exit: leave
+ ret
+
+ /* hand-craft a dummy .reloc section so EFI knows it's a relocatable executable: */
+
+ .data
+dummy: .long 0
+
+#define IMAGE_REL_ABSOLUTE 0
+ .section .reloc
+ .long dummy /* Page RVA */
+ .long 10 /* Block Size (2*4+2) */
+ .word (IMAGE_REL_ABSOLUTE<<12) + 0 /* reloc for dummy */
diff --git a/arch/x86/mach-efi/crt0-efi-x86_64.S b/arch/x86/mach-efi/crt0-efi-x86_64.S
new file mode 100644
index 0000000..aa03106
--- /dev/null
+++ b/arch/x86/mach-efi/crt0-efi-x86_64.S
@@ -0,0 +1,75 @@
+/* crt0-efi-x86_64.S - x86_64 EFI startup code.
+ Copyright (C) 1999 Hewlett-Packard Co.
+ Contributed by David Mosberger <davidm@hpl.hp.com>.
+ Copyright (C) 2005 Intel Co.
+ Contributed by Fenghua Yu <fenghua.yu@intel.com>.
+
+ All rights reserved.
+
+ Redistribution and use in source and binary forms, with or without
+ modification, are permitted provided that the following conditions
+ are met:
+
+ * Redistributions of source code must retain the above copyright
+ notice, this list of conditions and the following disclaimer.
+ * Redistributions in binary form must reproduce the above
+ copyright notice, this list of conditions and the following
+ disclaimer in the documentation and/or other materials
+ provided with the distribution.
+ * Neither the name of Hewlett-Packard Co. nor the names of its
+ contributors may be used to endorse or promote products derived
+ from this software without specific prior written permission.
+
+ THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
+ CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
+ INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
+ BE LIABLE FOR ANYDIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
+ OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
+ TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
+ THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ SUCH DAMAGE.
+*/
+ .text
+ .align 4
+
+ .globl _start
+_start:
+ subq $8, %rsp
+ pushq %rcx
+ pushq %rdx
+
+0:
+ lea image_base(%rip), %rdi
+ lea _DYNAMIC(%rip), %rsi
+
+ popq %rcx
+ popq %rdx
+ pushq %rcx
+ pushq %rdx
+ call _relocate
+
+ popq %rdi
+ popq %rsi
+
+ call efi_main
+ addq $8, %rsp
+
+.exit:
+ ret
+
+ /* hand-craft a dummy .reloc section so EFI knows it's a relocatable executable: */
+
+ .data
+dummy: .long 0
+
+#define IMAGE_REL_ABSOLUTE 0
+ .section .reloc, "a"
+label1:
+ .long dummy-label1 /* Page RVA */
+ .long 10 /* Block Size (2*4+2) */
+ .word (IMAGE_REL_ABSOLUTE<<12) + 0 /* reloc for dummy */
diff --git a/arch/x86/mach-efi/elf_ia32_efi.lds.S b/arch/x86/mach-efi/elf_ia32_efi.lds.S
new file mode 100644
index 0000000..69f43f5
--- /dev/null
+++ b/arch/x86/mach-efi/elf_ia32_efi.lds.S
@@ -0,0 +1,106 @@
+#include <asm-generic/barebox.lds.h>
+
+OUTPUT_FORMAT("elf32-i386", "elf32-i386", "elf32-i386")
+OUTPUT_ARCH(i386)
+ENTRY(_start)
+SECTIONS
+{
+ . = 0;
+ image_base = .;
+ .hash : { *(.hash) } /* this MUST come first! */
+ . = ALIGN(4096);
+ .text :
+ {
+ _stext = .;
+ _text = .;
+ *(.text)
+ *(.text.*)
+ *(.gnu.linkonce.t.*)
+ }
+
+ _etext = .;
+
+ . = ALIGN(4096);
+ .sdata : {
+ *(.got.plt)
+ *(.got)
+ *(.srodata)
+ *(.sdata)
+ *(.sbss)
+ *(.scommon)
+ }
+
+ . = ALIGN(4096);
+ _sdata = .;
+
+ .data : {
+ *(.rodata*)
+ *(.data)
+ *(.data1)
+ *(.data.*)
+ *(.sdata)
+ *(.got.plt)
+ *(.got)
+ /* the EFI loader doesn't seem to like a .bss section, so we stick
+ * it all into .data: */
+ *(.sbss)
+ *(.scommon)
+ *(.dynbss)
+ *(.bss)
+ *(COMMON)
+ }
+
+ . = ALIGN(64);
+
+ __barebox_initcalls_start = .;
+ __barebox_initcalls : { INITCALLS }
+ __barebox_initcalls_end = .;
+
+ __barebox_exitcalls_start = .;
+ __barebox_exitcalls : { EXITCALLS }
+ __barebox_exitcalls_end = .;
+
+ . = ALIGN(64);
+ __barebox_magicvar_start = .;
+ .barebox_magicvar : { BAREBOX_MAGICVARS }
+ __barebox_magicvar_end = .;
+
+ . = ALIGN(64);
+ __barebox_cmd_start = .;
+ __barebox_cmd : { BAREBOX_CMDS }
+ __barebox_cmd_end = .;
+
+ . = ALIGN(4096);
+ .dynamic : { *(.dynamic) }
+ . = ALIGN(4096);
+ .rel : {
+ *(.rel.data)
+ *(.rel.data.*)
+ *(.rel.got)
+ *(.rel.stab)
+ *(.data.rel.ro.local)
+ *(.data.rel.local)
+ *(.data.rel.ro)
+ *(.data.rel*)
+ }
+
+ . = ALIGN(4096);
+ .reloc : /* This is the PECOFF .reloc section! */
+ {
+ *(.reloc)
+ }
+
+ . = ALIGN(4096);
+ .dynsym : { *(.dynsym) }
+ . = ALIGN(4096);
+ .dynstr : { *(.dynstr) }
+ . = ALIGN(4096);
+ /DISCARD/ :
+ {
+ *(.rel.reloc)
+ *(.eh_frame)
+ *(.note.GNU-stack)
+ }
+
+ .comment 0 : { *(.comment) }
+}
diff --git a/arch/x86/mach-efi/elf_x86_64_efi.lds.S b/arch/x86/mach-efi/elf_x86_64_efi.lds.S
new file mode 100644
index 0000000..e1bc212
--- /dev/null
+++ b/arch/x86/mach-efi/elf_x86_64_efi.lds.S
@@ -0,0 +1,99 @@
+#include <asm-generic/barebox.lds.h>
+
+/* Same as elf_x86_64_fbsd_efi.lds, except for OUTPUT_FORMAT below - KEEP IN SYNC */
+
+OUTPUT_FORMAT("elf64-x86-64", "elf64-x86-64", "elf64-x86-64")
+OUTPUT_ARCH(i386:x86-64)
+ENTRY(_start)
+SECTIONS
+{
+ . = 0;
+ image_base = .;
+ .hash : { *(.hash) } /* this MUST come first! */
+ . = ALIGN(4096);
+ .eh_frame : {
+ *(.eh_frame)
+ }
+
+ . = ALIGN(4096);
+
+ .text : {
+ _stext = .;
+ _text = .;
+ *(.text)
+ *(.text.*)
+ *(.gnu.linkonce.t.*)
+ }
+
+ _etext = .;
+
+ . = ALIGN(4096);
+
+ .reloc : {
+ *(.reloc)
+ }
+
+ . = ALIGN(4096);
+ _sdata = .;
+
+ .data : {
+ *(.rodata*)
+ *(.got.plt)
+ *(.got)
+ *(.data*)
+ *(.sdata)
+ /* the EFI loader doesn't seem to like a .bss section, so we stick
+ * it all into .data: */
+ *(.sbss)
+ *(.scommon)
+ *(.dynbss)
+ *(.bss)
+ *(COMMON)
+ *(.rel.local)
+ }
+
+ . = ALIGN(64);
+
+ __barebox_initcalls_start = .;
+ __barebox_initcalls : { INITCALLS }
+ __barebox_initcalls_end = .;
+
+ __barebox_exitcalls_start = .;
+ __barebox_exitcalls : { EXITCALLS }
+ __barebox_exitcalls_end = .;
+
+ . = ALIGN(64);
+ __barebox_magicvar_start = .;
+ .barebox_magicvar : { BAREBOX_MAGICVARS }
+ __barebox_magicvar_end = .;
+
+ . = ALIGN(64);
+ __barebox_cmd_start = .;
+ __barebox_cmd : { BAREBOX_CMDS }
+ __barebox_cmd_end = .;
+
+ . = ALIGN(4096);
+ .dynamic : { *(.dynamic) }
+ . = ALIGN(4096);
+
+ .rela : {
+ *(.rela.data*)
+ *(.rela.barebox*)
+ *(.rela.initcall*)
+ *(.rela.got)
+ *(.rela.stab)
+ }
+
+ . = ALIGN(4096);
+ .dynsym : { *(.dynsym) }
+ . = ALIGN(4096);
+ .dynstr : { *(.dynstr) }
+ . = ALIGN(4096);
+ .ignored.reloc : {
+ *(.rela.reloc)
+ *(.eh_frame)
+ *(.note.GNU-stack)
+ }
+
+ .comment 0 : { *(.comment) }
+}
diff --git a/arch/x86/mach-efi/include/mach/barebox.lds.h b/arch/x86/mach-efi/include/mach/barebox.lds.h
new file mode 100644
index 0000000..40a8c17
--- /dev/null
+++ b/arch/x86/mach-efi/include/mach/barebox.lds.h
@@ -0,0 +1 @@
+/* empty */
diff --git a/arch/x86/mach-efi/include/mach/debug_ll.h b/arch/x86/mach-efi/include/mach/debug_ll.h
new file mode 100644
index 0000000..e144d86
--- /dev/null
+++ b/arch/x86/mach-efi/include/mach/debug_ll.h
@@ -0,0 +1 @@
+#include <efi/debug_ll.h>
diff --git a/arch/x86/mach-efi/reloc_ia32.c b/arch/x86/mach-efi/reloc_ia32.c
new file mode 100644
index 0000000..4692963
--- /dev/null
+++ b/arch/x86/mach-efi/reloc_ia32.c
@@ -0,0 +1,97 @@
+/* reloc_ia32.c - position independent x86 ELF shared object relocator
+ Copyright (C) 1999 Hewlett-Packard Co.
+ Contributed by David Mosberger <davidm@hpl.hp.com>.
+
+ All rights reserved.
+
+ Redistribution and use in source and binary forms, with or without
+ modification, are permitted provided that the following conditions
+ are met:
+
+ * Redistributions of source code must retain the above copyright
+ notice, this list of conditions and the following disclaimer.
+ * Redistributions in binary form must reproduce the above
+ copyright notice, this list of conditions and the following
+ disclaimer in the documentation and/or other materials
+ provided with the distribution.
+ * Neither the name of Hewlett-Packard Co. nor the names of its
+ contributors may be used to endorse or promote products derived
+ from this software without specific prior written permission.
+
+ THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
+ CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
+ INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
+ BE LIABLE FOR ANYDIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
+ OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
+ TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
+ THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ SUCH DAMAGE.
+*/
+
+#include <common.h>
+#include <efi.h>
+
+#include <elf.h>
+
+efi_status_t _relocate(long ldbase, Elf32_Dyn *dyn, efi_handle_t image, efi_system_table_t *systab)
+{
+ long relsz = 0, relent = 0;
+ Elf32_Rel *rel = 0;
+ unsigned long *addr;
+ int i;
+
+ for (i = 0; dyn[i].d_tag != DT_NULL; ++i) {
+ switch (dyn[i].d_tag) {
+ case DT_REL:
+ rel = (Elf32_Rel*)
+ ((unsigned long)dyn[i].d_un.d_ptr
+ + ldbase);
+ break;
+
+ case DT_RELSZ:
+ relsz = dyn[i].d_un.d_val;
+ break;
+
+ case DT_RELENT:
+ relent = dyn[i].d_un.d_val;
+ break;
+
+ case DT_RELA:
+ break;
+
+ default:
+ break;
+ }
+ }
+
+ if (!rel && relent == 0)
+ return EFI_SUCCESS;
+
+ if (!rel || relent == 0)
+ return EFI_LOAD_ERROR;
+
+ while (relsz > 0) {
+ /* apply the relocs */
+ switch (ELF32_R_TYPE (rel->r_info)) {
+ case R_386_NONE:
+ break;
+
+ case R_386_RELATIVE:
+ addr = (unsigned long *)
+ (ldbase + rel->r_offset);
+ *addr += ldbase;
+ break;
+
+ default:
+ break;
+ }
+ rel = (Elf32_Rel*) ((char *) rel + relent);
+ relsz -= relent;
+ }
+ return EFI_SUCCESS;
+}
diff --git a/arch/x86/mach-efi/reloc_x86_64.c b/arch/x86/mach-efi/reloc_x86_64.c
new file mode 100644
index 0000000..1db72f5
--- /dev/null
+++ b/arch/x86/mach-efi/reloc_x86_64.c
@@ -0,0 +1,96 @@
+/* reloc_x86_64.c - position independent x86_64 ELF shared object relocator
+ Copyright (C) 1999 Hewlett-Packard Co.
+ Contributed by David Mosberger <davidm@hpl.hp.com>.
+ Copyright (C) 2005 Intel Co.
+ Contributed by Fenghua Yu <fenghua.yu@intel.com>.
+
+ All rights reserved.
+
+ Redistribution and use in source and binary forms, with or without
+ modification, are permitted provided that the following conditions
+ are met:
+
+ * Redistributions of source code must retain the above copyright
+ notice, this list of conditions and the following disclaimer.
+ * Redistributions in binary form must reproduce the above
+ copyright notice, this list of conditions and the following
+ disclaimer in the documentation and/or other materials
+ provided with the distribution.
+ * Neither the name of Hewlett-Packard Co. nor the names of its
+ contributors may be used to endorse or promote products derived
+ from this software without specific prior written permission.
+
+ THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
+ CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
+ INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
+ BE LIABLE FOR ANYDIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
+ OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
+ TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
+ THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ SUCH DAMAGE.
+*/
+
+#include <common.h>
+#include <efi.h>
+
+#include <elf.h>
+
+efi_status_t _relocate (long ldbase, Elf64_Dyn *dyn, efi_handle_t image, efi_system_table_t *systab)
+{
+ long relsz = 0, relent = 0;
+ Elf64_Rel *rel = 0;
+ unsigned long *addr;
+ int i;
+
+ for (i = 0; dyn[i].d_tag != DT_NULL; ++i) {
+ switch (dyn[i].d_tag) {
+ case DT_RELA:
+ rel = (Elf64_Rel*)
+ ((unsigned long)dyn[i].d_un.d_ptr
+ + ldbase);
+ break;
+
+ case DT_RELASZ:
+ relsz = dyn[i].d_un.d_val;
+ break;
+
+ case DT_RELAENT:
+ relent = dyn[i].d_un.d_val;
+ break;
+
+ default:
+ break;
+ }
+ }
+
+ if (!rel && relent == 0)
+ return EFI_SUCCESS;
+
+ if (!rel || relent == 0)
+ return EFI_LOAD_ERROR;
+
+ while (relsz > 0) {
+ /* apply the relocs */
+ switch (ELF64_R_TYPE (rel->r_info)) {
+ case R_X86_64_NONE:
+ break;
+
+ case R_X86_64_RELATIVE:
+ addr = (unsigned long *)
+ (ldbase + rel->r_offset);
+ *addr += ldbase;
+ break;
+
+ default:
+ break;
+ }
+ rel = (Elf64_Rel*) ((char *) rel + relent);
+ relsz -= relent;
+ }
+ return EFI_SUCCESS;
+}