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/arch/s390/kernel/vdso64/vdso64.lds.S

https://bitbucket.org/ndreys/linux-sunxi
Assembly | 138 lines | 120 code | 18 blank | 0 comment | 2 complexity | 5875118a6769d7a903bbf1c4353b0feb MD5 | raw file
Possible License(s): GPL-2.0, LGPL-2.0, AGPL-1.0
  1/*
  2 * This is the infamous ld script for the 64 bits vdso
  3 * library
  4 */
  5#include <asm/vdso.h>
  6
  7OUTPUT_FORMAT("elf64-s390", "elf64-s390", "elf64-s390")
  8OUTPUT_ARCH(s390:64-bit)
  9ENTRY(_start)
 10
 11SECTIONS
 12{
 13	. = VDSO64_LBASE + SIZEOF_HEADERS;
 14
 15	.hash		: { *(.hash) }			:text
 16	.gnu.hash	: { *(.gnu.hash) }
 17	.dynsym		: { *(.dynsym) }
 18	.dynstr		: { *(.dynstr) }
 19	.gnu.version	: { *(.gnu.version) }
 20	.gnu.version_d	: { *(.gnu.version_d) }
 21	.gnu.version_r	: { *(.gnu.version_r) }
 22
 23	.note		: { *(.note.*) }		:text	:note
 24
 25	. = ALIGN(16);
 26	.text		: {
 27		*(.text .stub .text.* .gnu.linkonce.t.*)
 28	} :text
 29	PROVIDE(__etext = .);
 30	PROVIDE(_etext = .);
 31	PROVIDE(etext = .);
 32
 33	/*
 34	 * Other stuff is appended to the text segment:
 35	 */
 36	.rodata		: { *(.rodata .rodata.* .gnu.linkonce.r.*) }
 37	.rodata1	: { *(.rodata1) }
 38
 39	.dynamic	: { *(.dynamic) }		:text	:dynamic
 40
 41	.eh_frame_hdr	: { *(.eh_frame_hdr) }		:text	:eh_frame_hdr
 42	.eh_frame	: { KEEP (*(.eh_frame)) }	:text
 43	.gcc_except_table : { *(.gcc_except_table .gcc_except_table.*) }
 44
 45	.rela.dyn ALIGN(8) : { *(.rela.dyn) }
 46	.got ALIGN(8)	: { *(.got .toc) }
 47
 48	_end = .;
 49	PROVIDE(end = .);
 50
 51	/*
 52	 * Stabs debugging sections are here too.
 53	 */
 54	.stab	       0 : { *(.stab) }
 55	.stabstr       0 : { *(.stabstr) }
 56	.stab.excl     0 : { *(.stab.excl) }
 57	.stab.exclstr  0 : { *(.stab.exclstr) }
 58	.stab.index    0 : { *(.stab.index) }
 59	.stab.indexstr 0 : { *(.stab.indexstr) }
 60	.comment       0 : { *(.comment) }
 61
 62	/*
 63	 * DWARF debug sections.
 64	 * Symbols in the DWARF debugging sections are relative to the
 65	 * beginning of the section so we begin them at 0.
 66	 */
 67	/* DWARF 1 */
 68	.debug		0 : { *(.debug) }
 69	.line		0 : { *(.line) }
 70	/* GNU DWARF 1 extensions */
 71	.debug_srcinfo	0 : { *(.debug_srcinfo) }
 72	.debug_sfnames	0 : { *(.debug_sfnames) }
 73	/* DWARF 1.1 and DWARF 2 */
 74	.debug_aranges	0 : { *(.debug_aranges) }
 75	.debug_pubnames 0 : { *(.debug_pubnames) }
 76	/* DWARF 2 */
 77	.debug_info	0 : { *(.debug_info .gnu.linkonce.wi.*) }
 78	.debug_abbrev	0 : { *(.debug_abbrev) }
 79	.debug_line	0 : { *(.debug_line) }
 80	.debug_frame	0 : { *(.debug_frame) }
 81	.debug_str	0 : { *(.debug_str) }
 82	.debug_loc	0 : { *(.debug_loc) }
 83	.debug_macinfo	0 : { *(.debug_macinfo) }
 84	/* SGI/MIPS DWARF 2 extensions */
 85	.debug_weaknames 0 : { *(.debug_weaknames) }
 86	.debug_funcnames 0 : { *(.debug_funcnames) }
 87	.debug_typenames 0 : { *(.debug_typenames) }
 88	.debug_varnames  0 : { *(.debug_varnames) }
 89	/* DWARF 3 */
 90	.debug_pubtypes 0 : { *(.debug_pubtypes) }
 91	.debug_ranges	0 : { *(.debug_ranges) }
 92	.gnu.attributes 0 : { KEEP (*(.gnu.attributes)) }
 93
 94	. = ALIGN(4096);
 95	PROVIDE(_vdso_data = .);
 96
 97	/DISCARD/	: {
 98		*(.note.GNU-stack)
 99		*(.branch_lt)
100		*(.data .data.* .gnu.linkonce.d.* .sdata*)
101		*(.bss .sbss .dynbss .dynsbss)
102	}
103}
104
105/*
106 * Very old versions of ld do not recognize this name token; use the constant.
107 */
108#define PT_GNU_EH_FRAME	0x6474e550
109
110/*
111 * We must supply the ELF program headers explicitly to get just one
112 * PT_LOAD segment, and set the flags explicitly to make segments read-only.
113 */
114PHDRS
115{
116	text		PT_LOAD FILEHDR PHDRS FLAGS(5);	/* PF_R|PF_X */
117	dynamic		PT_DYNAMIC FLAGS(4);		/* PF_R */
118	note		PT_NOTE FLAGS(4);		/* PF_R */
119	eh_frame_hdr	PT_GNU_EH_FRAME;
120}
121
122/*
123 * This controls what symbols we export from the DSO.
124 */
125VERSION
126{
127	VDSO_VERSION_STRING {
128	global:
129		/*
130		 * Has to be there for the kernel to find
131		 */
132		__kernel_gettimeofday;
133		__kernel_clock_gettime;
134		__kernel_clock_getres;
135
136	local: *;
137	};
138}