xref: /linux/scripts/module.lds.S (revision 288440de9e5fdb4a3ff73864850f080c1250fc81)
1/*
2 * Common module linker script, always used when linking a module.
3 * Archs are free to supply their own linker scripts.  ld will
4 * combine them automatically.
5 */
6#ifdef CONFIG_CFI_CLANG
7# include <asm/page.h>
8# define ALIGN_CFI 		ALIGN(PAGE_SIZE)
9# define SANITIZER_DISCARDS	*(.eh_frame)
10#else
11# define ALIGN_CFI
12# define SANITIZER_DISCARDS
13#endif
14
15SECTIONS {
16	/DISCARD/ : {
17		*(.discard)
18		*(.discard.*)
19		SANITIZER_DISCARDS
20	}
21
22	__ksymtab		0 : { *(SORT(___ksymtab+*)) }
23	__ksymtab_gpl		0 : { *(SORT(___ksymtab_gpl+*)) }
24	__kcrctab		0 : { *(SORT(___kcrctab+*)) }
25	__kcrctab_gpl		0 : { *(SORT(___kcrctab_gpl+*)) }
26
27	.ctors			0 : ALIGN(8) { *(SORT(.ctors.*)) *(.ctors) }
28	.init_array		0 : ALIGN(8) { *(SORT(.init_array.*)) *(.init_array) }
29
30	.altinstructions	0 : ALIGN(8) { KEEP(*(.altinstructions)) }
31	__bug_table		0 : ALIGN(8) { KEEP(*(__bug_table)) }
32	__jump_table		0 : ALIGN(8) { KEEP(*(__jump_table)) }
33
34	__patchable_function_entries : { *(__patchable_function_entries) }
35
36#ifdef CONFIG_LTO_CLANG
37	/*
38	 * With CONFIG_LTO_CLANG, LLD always enables -fdata-sections and
39	 * -ffunction-sections, which increases the size of the final module.
40	 * Merge the split sections in the final binary.
41	 */
42	.bss : {
43		*(.bss .bss.[0-9a-zA-Z_]*)
44		*(.bss..L*)
45	}
46
47	.data : {
48		*(.data .data.[0-9a-zA-Z_]*)
49		*(.data..L*)
50	}
51
52	.rodata : {
53		*(.rodata .rodata.[0-9a-zA-Z_]*)
54		*(.rodata..L*)
55	}
56
57	/*
58	 * With CONFIG_CFI_CLANG, we assume __cfi_check is at the beginning
59	 * of the .text section, and is aligned to PAGE_SIZE.
60	 */
61	.text : ALIGN_CFI {
62		*(.text.__cfi_check)
63		*(.text .text.[0-9a-zA-Z_]* .text..L.cfi*)
64	}
65#endif
66}
67
68/* bring in arch-specific sections */
69#include <asm/module.lds.h>
70