xref: /linux/scripts/module.lds.S (revision 87c9c16317882dd6dbbc07e349bc3223e14f3244)
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	.init_array		0 : ALIGN(8) { *(SORT(.init_array.*)) *(.init_array) }
28
29	__jump_table		0 : ALIGN(8) { KEEP(*(__jump_table)) }
30
31	__patchable_function_entries : { *(__patchable_function_entries) }
32
33#ifdef CONFIG_LTO_CLANG
34	/*
35	 * With CONFIG_LTO_CLANG, LLD always enables -fdata-sections and
36	 * -ffunction-sections, which increases the size of the final module.
37	 * Merge the split sections in the final binary.
38	 */
39	.bss : {
40		*(.bss .bss.[0-9a-zA-Z_]*)
41		*(.bss..L*)
42	}
43
44	.data : {
45		*(.data .data.[0-9a-zA-Z_]*)
46		*(.data..L*)
47	}
48
49	.rodata : {
50		*(.rodata .rodata.[0-9a-zA-Z_]*)
51		*(.rodata..L*)
52	}
53
54	/*
55	 * With CONFIG_CFI_CLANG, we assume __cfi_check is at the beginning
56	 * of the .text section, and is aligned to PAGE_SIZE.
57	 */
58	.text : ALIGN_CFI {
59		*(.text.__cfi_check)
60		*(.text .text.[0-9a-zA-Z_]* .text..L.cfi*)
61	}
62#endif
63}
64
65/* bring in arch-specific sections */
66#include <asm/module.lds.h>
67