1 /* SPDX-License-Identifier: GPL-2.0-only */
3 * Copyright (C) 2000 Russell King
6 #ifdef CONFIG_CPU_ENDIAN_BE8
7 #define ZIMAGE_MAGIC(x) ( (((x) >> 24) & 0x000000ff) | \
8 (((x) >> 8) & 0x0000ff00) | \
9 (((x) << 8) & 0x00ff0000) | \
10 (((x) << 24) & 0xff000000) )
12 #define ZIMAGE_MAGIC(x) (x)
23 * Discard any r/w data - this produces a link error if we have any,
24 * which is required for PIC decompression. Local data generates
25 * GOTOFF relocations, which prevents it being relocated independently
26 * of the text/got segments.
47 LONG(ZIMAGE_MAGIC(0x5a534c4b))
48 LONG(ZIMAGE_MAGIC(__piggy_size_addr - _start))
49 LONG(ZIMAGE_MAGIC(_kernel_bss_size))
60 __piggy_size_addr = . - 4;
66 .got.plt : { *(.got.plt) }
71 /* ensure the zImage file size is always a multiple of 64 bits */
72 /* (without a dummy byte, ld just ignores the empty section) */
73 .pad : { BYTE(0); . = ALIGN(8); }
75 #ifdef CONFIG_EFI_STUB
77 __pecoff_data_start = .;
79 * The EFI stub always executes from RAM, and runs strictly before the
80 * decompressor, so we can make an exception for its r/w data, and keep it
83 __pecoff_data_end = .;
86 * PE/COFF mandates a file size which is a multiple of 512 bytes if the
87 * section size equals or exceeds 4 KB
91 __pecoff_data_rawsize = . - ADDR(.data);
97 * The image_end section appears after any additional loadable sections
98 * that the linker may decide to insert in the binary image. Having
99 * this symbol allows further debug in the near future.
101 .image_end (NOLOAD) : {
103 * EFI requires that the image is aligned to 512 bytes, and appended
104 * DTB requires that we know where the end of the image is. Ensure
105 * that both are satisfied by ensuring that there are no additional
106 * sections emitted into the decompressor image.
111 _magic_sig = ZIMAGE_MAGIC(0x016f2818);
112 _magic_start = ZIMAGE_MAGIC(_start);
113 _magic_end = ZIMAGE_MAGIC(_edata);
114 _magic_table = ZIMAGE_MAGIC(_table_start - _start);
121 . = ALIGN(8); /* the stack must be 64-bit aligned */
122 .stack : { *(.stack) }
124 PROVIDE(__pecoff_data_size = ALIGN(512) - ADDR(.data));
125 PROVIDE(__pecoff_end = ALIGN(512));
127 .stab 0 : { *(.stab) }
128 .stabstr 0 : { *(.stabstr) }
129 .stab.excl 0 : { *(.stab.excl) }
130 .stab.exclstr 0 : { *(.stab.exclstr) }
131 .stab.index 0 : { *(.stab.index) }
132 .stab.indexstr 0 : { *(.stab.indexstr) }
133 .comment 0 : { *(.comment) }
135 ASSERT(_edata_real == _edata, "error: zImage file size is incorrect");