Book a Demo!
CoCalc Logo Icon
StoreFeaturesDocsShareSupportNewsAboutPoliciesSign UpSign In
torvalds
GitHub Repository: torvalds/linux
 Path: blob/master/arch/x86/boot/compressed/vmlinux.lds.S
26481 views
1
/* SPDX-License-Identifier: GPL-2.0 */

2
#include <asm-generic/vmlinux.lds.h>

3


4
OUTPUT_FORMAT(CONFIG_OUTPUT_FORMAT)

5


6
#undef i386

7


8
#include <asm/cache.h>

9
#include <asm/page_types.h>

10


11
#ifdef CONFIG_X86_64

12
OUTPUT_ARCH(i386:x86-64)

13
ENTRY(startup_64)

14
#else

15
OUTPUT_ARCH(i386)

16
ENTRY(startup_32)

17
#endif

18


19
SECTIONS

20
{

21
	/* Be careful parts of head_64.S assume startup_32 is at

22
	 * address 0.

23
	 */

24
	. = 0;

25
	.head.text : {

26
		_head = . ;

27
		HEAD_TEXT

28
		_ehead = . ;

29
	}

30
	.rodata..compressed : {

31
		*(.rodata..compressed)

32
	}

33
	.text :	{

34
		_text = .; 	/* Text */

35
		*(.text)

36
		*(.text.*)

37
		*(.noinstr.text)

38
		_etext = . ;

39
	}

40
	.rodata : {

41
		_rodata = . ;

42
		*(.rodata)	 /* read-only data */

43
		*(.rodata.*)

44
		_erodata = . ;

45
	}

46
#ifdef CONFIG_EFI_SBAT

47
	.sbat : ALIGN(0x1000) {

48
		_sbat = . ;

49
		*(.sbat)

50
		_esbat = ALIGN(0x1000);

51
		. = _esbat;

52
	}

53
#endif

54
	.data :	ALIGN(0x1000) {

55
		_data = . ;

56
		*(.data)

57
		*(.data.*)

58


59
		/* Add 4 bytes of extra space for the obsolete CRC-32 checksum */

60
		. = ALIGN(. + 4, 0x200);

61
		_edata = . ;

62
	}

63
	. = ALIGN(L1_CACHE_BYTES);

64
	.bss : {

65
		_bss = . ;

66
		*(.bss)

67
		*(.bss.*)

68
		*(COMMON)

69
		. = ALIGN(8);	/* For convenience during zeroing */

70
		_ebss = .;

71
	}

72
#ifdef CONFIG_X86_64

73
       . = ALIGN(PAGE_SIZE);

74
       .pgtable : {

75
		_pgtable = . ;

76
		*(.pgtable)

77
		_epgtable = . ;

78
	}

79
#endif

80
	. = ALIGN(PAGE_SIZE);	/* keep ZO size page aligned */

81
	_end = .;

82


83
	STABS_DEBUG

84
	DWARF_DEBUG

85
	ELF_DETAILS

86


87
	DISCARDS

88
	/DISCARD/ : {

89
		*(.dynamic) *(.dynsym) *(.dynstr) *(.dynbss)

90
		*(.hash) *(.gnu.hash)

91
		*(.note.*)

92
	}

93


94
	.got.plt (INFO) : {

95
		*(.got.plt)

96
	}

97
	ASSERT(SIZEOF(.got.plt) == 0 ||

98
#ifdef CONFIG_X86_64

99
	       SIZEOF(.got.plt) == 0x18,

100
#else

101
	       SIZEOF(.got.plt) == 0xc,

102
#endif

103
	       "Unexpected GOT/PLT entries detected!")

104


105
	/*

106
	 * Sections that should stay zero sized, which is safer to

107
	 * explicitly check instead of blindly discarding.

108
	 */

109
	.got : {

110
		*(.got)

111
	}

112
	ASSERT(SIZEOF(.got) == 0, "Unexpected GOT entries detected!")

113


114
	.plt : {

115
		*(.plt) *(.plt.*)

116
	}

117
	ASSERT(SIZEOF(.plt) == 0, "Unexpected run-time procedure linkages detected!")

118


119
	.rel.dyn : {

120
		*(.rel.*) *(.rel_*)

121
	}

122
	ASSERT(SIZEOF(.rel.dyn) == 0, "Unexpected run-time relocations (.rel) detected!")

123


124
	.rela.dyn : {

125
		*(.rela.*) *(.rela_*)

126
	}

127
	ASSERT(SIZEOF(.rela.dyn) == 0, "Unexpected run-time relocations (.rela) detected!")

128
}

129


130