1 /* ld script to make x86-64 Linux kernel
2 * Written by Martin Mares <mj@atrey.karlin.mff.cuni.cz>;
5 #include <asm-generic/vmlinux.lds.h>
6 #include <linux/config.h>
8 OUTPUT_FORMAT("elf64-x86-64", "elf64-x86-64", "elf64-x86-64")
9 OUTPUT_ARCH(i386:x86-64)
10 ENTRY(phys_startup_64)
14 . = 0xffffffff80100000;
15 phys_startup_64 = startup_64 - LOAD_OFFSET;
16 _text = .; /* Text and read-only data */
24 .text.lock : { *(.text.lock) } /* out-of-line lock text */
26 _etext = .; /* End of text section */
28 . = ALIGN(16); /* Exception table */
29 __start___ex_table = .;
30 __ex_table : { *(__ex_table) }
31 __stop___ex_table = .;
40 _edata = .; /* End of data section */
42 __bss_start = .; /* BSS */
49 . = ALIGN(CONFIG_X86_L1_CACHE_BYTES);
50 .data.cacheline_aligned : { *(.data.cacheline_aligned) }
52 #define AFTER(x) BINALIGN(LOADADDR(x) + SIZEOF(x), 16)
53 #define BINALIGN(x,y) (((x) + (y) - 1) & ~((y) - 1))
54 #define CACHE_ALIGN(x) BINALIGN(x, CONFIG_X86_L1_CACHE_BYTES)
56 .vsyscall_0 -10*1024*1024: AT ((LOADADDR(.data.cacheline_aligned) + SIZEOF(.data.cacheline_aligned) + 4095) & ~(4095)) { *(.vsyscall_0) }
57 __vsyscall_0 = LOADADDR(.vsyscall_0);
58 . = ALIGN(CONFIG_X86_L1_CACHE_BYTES);
59 .xtime_lock : AT CACHE_ALIGN(AFTER(.vsyscall_0)) { *(.xtime_lock) }
60 xtime_lock = LOADADDR(.xtime_lock);
61 .vxtime : AT AFTER(.xtime_lock) { *(.vxtime) }
62 vxtime = LOADADDR(.vxtime);
63 .wall_jiffies : AT AFTER(.vxtime) { *(.wall_jiffies) }
64 wall_jiffies = LOADADDR(.wall_jiffies);
65 .sys_tz : AT AFTER(.wall_jiffies) { *(.sys_tz) }
66 sys_tz = LOADADDR(.sys_tz);
67 .sysctl_vsyscall : AT AFTER(.sys_tz) { *(.sysctl_vsyscall) }
68 sysctl_vsyscall = LOADADDR(.sysctl_vsyscall);
69 .xtime : AT AFTER(.sysctl_vsyscall) { *(.xtime) }
70 xtime = LOADADDR(.xtime);
71 . = ALIGN(CONFIG_X86_L1_CACHE_BYTES);
72 .jiffies : AT CACHE_ALIGN(AFTER(.xtime)) { *(.jiffies) }
73 jiffies = LOADADDR(.jiffies);
74 .vsyscall_1 ADDR(.vsyscall_0) + 1024: AT (LOADADDR(.vsyscall_0) + 1024) { *(.vsyscall_1) }
75 . = LOADADDR(.vsyscall_0) + 4096;
77 . = ALIGN(8192); /* init_task */
78 .data.init_task : { *(.data.init_task) }
81 .data.page_aligned : { *(.data.page_aligned) }
83 . = ALIGN(4096); /* Init code and data */
91 .init.data : { *(.init.data) }
95 .init.setup : { *(.init.setup) }
108 __con_initcall_start = .;
109 .con_initcall.init : { *(.con_initcall.init) }
110 __con_initcall_end = .;
113 __alt_instructions = .;
114 .altinstructions : { *(.altinstructions) }
115 __alt_instructions_end = .;
116 .altinstr_replacement : { *(.altinstr_replacement) }
117 /* .exit.text is discard at runtime, not link time, to deal with references
118 from .altinstructions and .eh_frame */
119 .exit.text : { *(.exit.text) }
120 .exit.data : { *(.exit.data) }
122 __initramfs_start = .;
123 .init.ramfs : { *(.init.ramfs) }
127 .data.percpu : { *(.data.percpu) }
134 .data_nosave : { *(.data.nosave) }
140 /* Sections to be discarded */
143 #ifndef CONFIG_DEBUG_INFO
149 .debug_info 0 : { *(.debug_info) }
150 .debug_abbrev 0 : { *(.debug_abbrev) }
151 .debug_line 0 : { *(.debug_line) }
152 .debug_frame 0 : { *(.debug_frame) }
153 .debug_str 0 : { *(.debug_str) }
154 .debug_loc 0 : { *(.debug_loc) }
155 .debug_macinfo 0 : { *(.debug_macinfo) }
156 /* SGI/MIPS DWARF 2 extensions */
157 .debug_weaknames 0 : { *(.debug_weaknames) }
158 .debug_funcnames 0 : { *(.debug_funcnames) }
159 .debug_typenames 0 : { *(.debug_typenames) }
160 .debug_varnames 0 : { *(.debug_varnames) }
163 .comment 0 : { *(.comment) }