Blame - arch/arm/lib/crt0_aarch64_efi.S - filogic/uboot

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Tom Rini	8b0c8a1	2018-05-06 18:27:01 -0400	[diff] [blame]	1	/* SPDX-License-Identifier: GPL-2.0+ OR BSD-2-Clause */
Simon Glass	61378fd	2016-11-07 08:47:11 -0700	[diff] [blame]	2	/*
				3	* crt0-efi-aarch64.S - PE/COFF header for aarch64 EFI applications
				4	*
				5	* Copright (C) 2014 Linaro Ltd. <ard.biesheuvel@linaro.org>
				6	*
Simon Glass	61378fd	2016-11-07 08:47:11 -0700	[diff] [blame]	7	*
				8	* This file is taken and modified from the gnu-efi project.
				9	*/
				10
Heinrich Schuchardt	467fd7a	2018-01-31 18:45:35 +0000	[diff] [blame]	11	#include <asm-generic/pe.h>
				12
Simon Glass	61378fd	2016-11-07 08:47:11 -0700	[diff] [blame]	13	.section .text.head
				14
				15	/*
				16	* Magic "MZ" signature for PE/COFF
				17	*/
				18	.globl ImageBase
				19	ImageBase:
Heinrich Schuchardt	d680e9a	2019-07-11 06:39:32 +0200	[diff] [blame]	20	.short IMAGE_DOS_SIGNATURE /* 'MZ' */
Heinrich Schuchardt	d6bc9ec	2021-01-29 12:35:51 +0100	[diff] [blame]	21	.skip 54 /* 'MZ' + pad + offset == 64 */
				22	.long LINUX_ARM64_MAGIC /* For GRUB's linux command */
Simon Glass	61378fd	2016-11-07 08:47:11 -0700	[diff] [blame]	23	.long pe_header - ImageBase /* Offset to the PE header */
				24	pe_header:
Heinrich Schuchardt	d680e9a	2019-07-11 06:39:32 +0200	[diff] [blame]	25	.long IMAGE_NT_SIGNATURE /* 'PE' */
Simon Glass	61378fd	2016-11-07 08:47:11 -0700	[diff] [blame]	26	coff_header:
Heinrich Schuchardt	d680e9a	2019-07-11 06:39:32 +0200	[diff] [blame]	27	.short IMAGE_FILE_MACHINE_ARM64 /* AArch64 */
Heinrich Schuchardt	7b298a5	2022-12-31 11:58:54 +0100	[diff] [blame]	28	.short 3 /* nr_sections */
Simon Glass	61378fd	2016-11-07 08:47:11 -0700	[diff] [blame]	29	.long 0 /* TimeDateStamp */
				30	.long 0 /* PointerToSymbolTable */
Bin Meng	a15de9e	2018-10-02 07:39:33 -0700	[diff] [blame]	31	.long 0 /* NumberOfSymbols */
Simon Glass	61378fd	2016-11-07 08:47:11 -0700	[diff] [blame]	32	.short section_table - optional_header /* SizeOfOptionalHeader */
Bin Meng	a15de9e	2018-10-02 07:39:33 -0700	[diff] [blame]	33	/* Characteristics */
				34	.short (IMAGE_FILE_EXECUTABLE_IMAGE \| \
				35	IMAGE_FILE_LINE_NUMS_STRIPPED \| \
				36	IMAGE_FILE_LOCAL_SYMS_STRIPPED \| \
Heinrich Schuchardt	e84ab96	2022-12-23 02:16:03 +0100	[diff] [blame]	37	IMAGE_FILE_LARGE_ADDRESS_AWARE \| \
Bin Meng	a15de9e	2018-10-02 07:39:33 -0700	[diff] [blame]	38	IMAGE_FILE_DEBUG_STRIPPED)
Simon Glass	61378fd	2016-11-07 08:47:11 -0700	[diff] [blame]	39	optional_header:
Heinrich Schuchardt	d680e9a	2019-07-11 06:39:32 +0200	[diff] [blame]	40	.short IMAGE_NT_OPTIONAL_HDR64_MAGIC /* PE32+ format */
Simon Glass	61378fd	2016-11-07 08:47:11 -0700	[diff] [blame]	41	.byte 0x02 /* MajorLinkerVersion */
				42	.byte 0x14 /* MinorLinkerVersion */
Heinrich Schuchardt	7b298a5	2022-12-31 11:58:54 +0100	[diff] [blame]	43	.long _etext - _start /* SizeOfCode */
Simon Glass	61378fd	2016-11-07 08:47:11 -0700	[diff] [blame]	44	.long 0 /* SizeOfInitializedData */
				45	.long 0 /* SizeOfUninitializedData */
				46	.long _start - ImageBase /* AddressOfEntryPoint */
				47	.long _start - ImageBase /* BaseOfCode */
				48
				49	extra_header_fields:
				50	.quad 0 /* ImageBase */
Heinrich Schuchardt	7b298a5	2022-12-31 11:58:54 +0100	[diff] [blame]	51	.long 0x1000 /* SectionAlignment */
Heinrich Schuchardt	f263479	2022-01-14 21:40:15 +0100	[diff] [blame]	52	.long 0x200 /* FileAlignment */
Simon Glass	61378fd	2016-11-07 08:47:11 -0700	[diff] [blame]	53	.short 0 /* MajorOperatingSystemVersion */
				54	.short 0 /* MinorOperatingSystemVersion */
				55	.short 0 /* MajorImageVersion */
				56	.short 0 /* MinorImageVersion */
				57	.short 0 /* MajorSubsystemVersion */
				58	.short 0 /* MinorSubsystemVersion */
				59	.long 0 /* Win32VersionValue */
				60
				61	.long _edata - ImageBase /* SizeOfImage */
				62
				63	/*
				64	* Everything before the kernel image is considered part of the header
				65	*/
				66	.long _start - ImageBase /* SizeOfHeaders */
				67	.long 0 /* CheckSum */
Heinrich Schuchardt	467fd7a	2018-01-31 18:45:35 +0000	[diff] [blame]	68	.short IMAGE_SUBSYSTEM_EFI_APPLICATION /* Subsystem */
Simon Glass	61378fd	2016-11-07 08:47:11 -0700	[diff] [blame]	69	.short 0 /* DllCharacteristics */
				70	.quad 0 /* SizeOfStackReserve */
				71	.quad 0 /* SizeOfStackCommit */
				72	.quad 0 /* SizeOfHeapReserve */
				73	.quad 0 /* SizeOfHeapCommit */
				74	.long 0 /* LoaderFlags */
				75	.long 0x6 /* NumberOfRvaAndSizes */
				76
				77	.quad 0 /* ExportTable */
				78	.quad 0 /* ImportTable */
				79	.quad 0 /* ResourceTable */
				80	.quad 0 /* ExceptionTable */
				81	.quad 0 /* CertificationTable */
				82	.quad 0 /* BaseRelocationTable */
				83
				84	/* Section table */
				85	section_table:
				86
				87	/*
				88	* The EFI application loader requires a relocation section
				89	* because EFI applications must be relocatable. This is a
				90	* dummy section as far as we are concerned.
				91	*/
				92	.ascii ".reloc"
				93	.byte 0
				94	.byte 0 /* end of 0 padding of section name */
				95	.long 0
				96	.long 0
				97	.long 0 /* SizeOfRawData */
				98	.long 0 /* PointerToRawData */
				99	.long 0 /* PointerToRelocations */
				100	.long 0 /* PointerToLineNumbers */
				101	.short 0 /* NumberOfRelocations */
				102	.short 0 /* NumberOfLineNumbers */
Heinrich Schuchardt	7b298a5	2022-12-31 11:58:54 +0100	[diff] [blame]	103	/* Characteristics (section flags) */
				104	.long (IMAGE_SCN_MEM_READ \| \
				105	IMAGE_SCN_MEM_DISCARDABLE \| \
				106	IMAGE_SCN_CNT_INITIALIZED_DATA)
Simon Glass	61378fd	2016-11-07 08:47:11 -0700	[diff] [blame]	107
				108	.ascii ".text"
				109	.byte 0
				110	.byte 0
				111	.byte 0 /* end of 0 padding of section name */
Heinrich Schuchardt	7b298a5	2022-12-31 11:58:54 +0100	[diff] [blame]	112	.long _etext - _start /* VirtualSize */
Simon Glass	61378fd	2016-11-07 08:47:11 -0700	[diff] [blame]	113	.long _start - ImageBase /* VirtualAddress */
Heinrich Schuchardt	7b298a5	2022-12-31 11:58:54 +0100	[diff] [blame]	114	.long _etext - _start /* SizeOfRawData */
Simon Glass	61378fd	2016-11-07 08:47:11 -0700	[diff] [blame]	115	.long _start - ImageBase /* PointerToRawData */
Heinrich Schuchardt	7b298a5	2022-12-31 11:58:54 +0100	[diff] [blame]	116	.long 0 /* PointerToRelocations */
				117	.long 0 /* PointerToLineNumbers */
				118	.short 0 /* NumberOfRelocations */
				119	.short 0 /* NumberOfLineNumbers */
				120	/* Characteristics (section flags) */
				121	.long (IMAGE_SCN_MEM_READ \| \
				122	IMAGE_SCN_MEM_EXECUTE \| \
				123	IMAGE_SCN_CNT_CODE)
Simon Glass	61378fd	2016-11-07 08:47:11 -0700	[diff] [blame]	124
Heinrich Schuchardt	7b298a5	2022-12-31 11:58:54 +0100	[diff] [blame]	125	.ascii ".data"
				126	.byte 0
				127	.byte 0
				128	.byte 0 /* end of 0 padding of section name */
				129	.long _data_size /* VirtualSize */
				130	.long _data - ImageBase /* VirtualAddress */
				131	.long _data_size /* SizeOfRawData */
				132	.long _data - ImageBase /* PointerToRawData */
				133	.long 0 /* PointerToRelocations */
				134	.long 0 /* PointerToLineNumbers */
				135	.short 0 /* NumberOfRelocations */
				136	.short 0 /* NumberOfLineNumbers */
				137	/* Characteristics (section flags) */
				138	.long (IMAGE_SCN_MEM_WRITE \| \
				139	IMAGE_SCN_MEM_READ \| \
				140	IMAGE_SCN_CNT_INITIALIZED_DATA)
Simon Glass	61378fd	2016-11-07 08:47:11 -0700	[diff] [blame]	141
Heinrich Schuchardt	7b298a5	2022-12-31 11:58:54 +0100	[diff] [blame]	142	.align 12
Simon Glass	61378fd	2016-11-07 08:47:11 -0700	[diff] [blame]	143	_start:
				144	stp x29, x30, [sp, #-32]!
				145	mov x29, sp
				146
				147	stp x0, x1, [sp, #16]
Simon Glass	61378fd	2016-11-07 08:47:11 -0700	[diff] [blame]	148	adr x0, ImageBase
				149	adrp x1, _DYNAMIC
				150	add x1, x1, #:lo12:_DYNAMIC
				151	bl _relocate
				152	cbnz x0, 0f
				153
				154	ldp x0, x1, [sp, #16]
				155	bl efi_main
				156
				157	0: ldp x29, x30, [sp], #32
				158	ret