Ben Cheng | 7334f0a | 2014-04-30 14:28:17 -0700 | [diff] [blame] | 1 | /* Script for -z combreloc -z now -z relro: combine and sort reloc sections */ |
| 2 | OUTPUT_FORMAT("elf32-bigaarch64", "elf32-bigaarch64", |
| 3 | "elf32-littleaarch64") |
| 4 | OUTPUT_ARCH(aarch64:ilp32) |
| 5 | ENTRY(_start) |
| 6 | SECTIONS |
| 7 | { |
| 8 | /* Read-only sections, merged into text segment: */ |
| 9 | PROVIDE (__executable_start = 0x00400000); . = 0x00400000; |
| 10 | .interp : { *(.interp) } |
| 11 | .note.gnu.build-id : { *(.note.gnu.build-id) } |
| 12 | .hash : { *(.hash) } |
| 13 | .gnu.hash : { *(.gnu.hash) } |
| 14 | .dynsym : { *(.dynsym) } |
| 15 | .dynstr : { *(.dynstr) } |
| 16 | .gnu.version : { *(.gnu.version) } |
| 17 | .gnu.version_d : { *(.gnu.version_d) } |
| 18 | .gnu.version_r : { *(.gnu.version_r) } |
| 19 | .rela.dyn : |
| 20 | { |
| 21 | *(.rela.init) |
| 22 | *(.rela.text .rela.text.* .rela.gnu.linkonce.t.*) |
| 23 | *(.rela.fini) |
| 24 | *(.rela.rodata .rela.rodata.* .rela.gnu.linkonce.r.*) |
| 25 | *(.rela.data .rela.data.* .rela.gnu.linkonce.d.*) |
| 26 | *(.rela.tdata .rela.tdata.* .rela.gnu.linkonce.td.*) |
| 27 | *(.rela.tbss .rela.tbss.* .rela.gnu.linkonce.tb.*) |
| 28 | *(.rela.ctors) |
| 29 | *(.rela.dtors) |
| 30 | *(.rela.got) |
| 31 | *(.rela.bss .rela.bss.* .rela.gnu.linkonce.b.*) |
| 32 | *(.rela.ifunc) |
| 33 | } |
| 34 | .rela.plt : |
| 35 | { |
| 36 | *(.rela.plt) |
| 37 | PROVIDE_HIDDEN (__rela_iplt_start = .); |
| 38 | *(.rela.iplt) |
| 39 | PROVIDE_HIDDEN (__rela_iplt_end = .); |
| 40 | } |
| 41 | .init : |
| 42 | { |
| 43 | KEEP (*(SORT_NONE(.init))) |
| 44 | } =0 |
| 45 | .plt : { *(.plt) *(.iplt) } |
| 46 | .text : |
| 47 | { |
| 48 | *(.text.unlikely .text.*_unlikely .text.unlikely.*) |
| 49 | *(.text.exit .text.exit.*) |
| 50 | *(.text.startup .text.startup.*) |
| 51 | *(.text.hot .text.hot.*) |
| 52 | *(.text .stub .text.* .gnu.linkonce.t.*) |
| 53 | /* .gnu.warning sections are handled specially by elf32.em. */ |
| 54 | *(.gnu.warning) |
| 55 | } =0 |
| 56 | .fini : |
| 57 | { |
| 58 | KEEP (*(SORT_NONE(.fini))) |
| 59 | } =0 |
| 60 | PROVIDE (__etext = .); |
| 61 | PROVIDE (_etext = .); |
| 62 | PROVIDE (etext = .); |
| 63 | .rodata : { *(.rodata .rodata.* .gnu.linkonce.r.*) } |
| 64 | .rodata1 : { *(.rodata1) } |
| 65 | .eh_frame_hdr : { *(.eh_frame_hdr) } |
| 66 | .eh_frame : ONLY_IF_RO { KEEP (*(.eh_frame)) } |
| 67 | .gcc_except_table : ONLY_IF_RO { *(.gcc_except_table |
| 68 | .gcc_except_table.*) } |
| 69 | /* These sections are generated by the Sun/Oracle C++ compiler. */ |
| 70 | .exception_ranges : ONLY_IF_RO { *(.exception_ranges |
| 71 | .exception_ranges*) } |
| 72 | /* Adjust the address for the data segment. For 32 bits we want to align |
| 73 | at exactly a page boundary to make life easier for apriori. */ |
| 74 | . = ALIGN(CONSTANT (MAXPAGESIZE)) + (. & (CONSTANT (MAXPAGESIZE) - 1)); |
| 75 | /* Exception handling */ |
| 76 | .eh_frame : ONLY_IF_RW { KEEP (*(.eh_frame)) } |
| 77 | .gcc_except_table : ONLY_IF_RW { *(.gcc_except_table .gcc_except_table.*) } |
| 78 | .exception_ranges : ONLY_IF_RW { *(.exception_ranges .exception_ranges*) } |
| 79 | /* Thread Local Storage sections */ |
| 80 | .tdata : { *(.tdata .tdata.* .gnu.linkonce.td.*) } |
| 81 | .tbss : { *(.tbss .tbss.* .gnu.linkonce.tb.*) *(.tcommon) } |
| 82 | /* Ensure the __preinit_array_start label is properly aligned. We |
| 83 | could instead move the label definition inside the section, but |
| 84 | the linker would then create the section even if it turns out to |
| 85 | be empty, which isn't pretty. */ |
| 86 | . = ALIGN(32 / 8); |
| 87 | PROVIDE_HIDDEN (__preinit_array_start = .); |
| 88 | .preinit_array : |
| 89 | { |
| 90 | KEEP (*(.preinit_array)) |
| 91 | } |
| 92 | PROVIDE_HIDDEN (__preinit_array_end = .); |
| 93 | PROVIDE_HIDDEN (__init_array_start = .); |
| 94 | .init_array : |
| 95 | { |
| 96 | KEEP (*crtbegin*.o(.init_array)) |
| 97 | KEEP (*(SORT_BY_INIT_PRIORITY(.init_array.*) SORT_BY_INIT_PRIORITY(.ctors.*))) |
| 98 | KEEP (*(.init_array EXCLUDE_FILE (*crtbegin.o *crtbegin?.o *crtend.o *crtend?.o ) .ctors)) |
| 99 | } |
| 100 | PROVIDE_HIDDEN (__init_array_end = .); |
| 101 | PROVIDE_HIDDEN (__fini_array_start = .); |
| 102 | .fini_array : |
| 103 | { |
| 104 | KEEP (*crtbegin*.o(.fini_array)) |
| 105 | KEEP (*(SORT_BY_INIT_PRIORITY(.fini_array.*) SORT_BY_INIT_PRIORITY(.dtors.*))) |
| 106 | KEEP (*(.fini_array EXCLUDE_FILE (*crtbegin.o *crtbegin?.o *crtend.o *crtend?.o ) .dtors)) |
| 107 | } |
| 108 | PROVIDE_HIDDEN (__fini_array_end = .); |
| 109 | .ctors : |
| 110 | { |
| 111 | /* gcc uses crtbegin.o to find the start of |
| 112 | the constructors, so we make sure it is |
| 113 | first. Because this is a wildcard, it |
| 114 | doesn't matter if the user does not |
| 115 | actually link against crtbegin.o; the |
| 116 | linker won't look for a file to match a |
| 117 | wildcard. The wildcard also means that it |
| 118 | doesn't matter which directory crtbegin.o |
| 119 | is in. */ |
| 120 | KEEP (*crtbegin.o(.ctors)) |
| 121 | KEEP (*crtbegin*.o(.ctors)) |
| 122 | /* We don't want to include the .ctor section from |
| 123 | the crtend.o file until after the sorted ctors. |
| 124 | The .ctor section from the crtend file contains the |
| 125 | end of ctors marker and it must be last */ |
| 126 | KEEP (*(EXCLUDE_FILE (*crtend.o *crtend*.o ) .ctors)) |
| 127 | KEEP (*(SORT(.ctors.*))) |
| 128 | KEEP (*(.ctors)) |
| 129 | } |
| 130 | .dtors : |
| 131 | { |
| 132 | KEEP (*crtbegin.o(.dtors)) |
| 133 | KEEP (*crtbegin*.o(.dtors)) |
| 134 | KEEP (*(EXCLUDE_FILE (*crtend.o *crtend*.o ) .dtors)) |
| 135 | KEEP (*(SORT(.dtors.*))) |
| 136 | KEEP (*(.dtors)) |
| 137 | } |
| 138 | .jcr : { KEEP (*(.jcr)) } |
| 139 | .data.rel.ro : { *(.data.rel.ro.local* .gnu.linkonce.d.rel.ro.local.*) *(.data.rel.ro .data.rel.ro.* .gnu.linkonce.d.rel.ro.*) } |
| 140 | .dynamic : { *(.dynamic) } |
| 141 | .got : { *(.got.plt) *(.igot.plt) *(.got) *(.igot) } |
| 142 | .data : |
| 143 | { |
| 144 | __data_start = . ; |
| 145 | *(.data .data.* .gnu.linkonce.d.*) |
| 146 | SORT(CONSTRUCTORS) |
| 147 | } |
| 148 | .data1 : { *(.data1) } |
| 149 | _edata = .; PROVIDE (edata = .); |
| 150 | . = .; |
| 151 | __bss_start = .; |
| 152 | __bss_start__ = .; |
| 153 | .bss : |
| 154 | { |
| 155 | *(.dynbss) |
| 156 | *(.bss .bss.* .gnu.linkonce.b.*) |
| 157 | *(COMMON) |
| 158 | /* Align here to ensure that the .bss section occupies space up to |
| 159 | _end. Align after .bss to ensure correct alignment even if the |
| 160 | .bss section disappears because there are no input sections. */ |
| 161 | . = ALIGN(32 / 8); |
| 162 | } |
| 163 | _bss_end__ = . ; __bss_end__ = . ; |
| 164 | . = ALIGN(32 / 8); |
| 165 | . = SEGMENT_START("ldata-segment", .); |
| 166 | . = ALIGN(32 / 8); |
| 167 | __end__ = . ; |
| 168 | _end = .; |
| 169 | _bss_end__ = . ; __bss_end__ = . ; __end__ = . ; |
| 170 | PROVIDE (end = .); |
| 171 | /* Stabs debugging sections. */ |
| 172 | .stab 0 : { *(.stab) } |
| 173 | .stabstr 0 : { *(.stabstr) } |
| 174 | .stab.excl 0 : { *(.stab.excl) } |
| 175 | .stab.exclstr 0 : { *(.stab.exclstr) } |
| 176 | .stab.index 0 : { *(.stab.index) } |
| 177 | .stab.indexstr 0 : { *(.stab.indexstr) } |
| 178 | .comment 0 : { *(.comment) } |
| 179 | /* DWARF debug sections. |
| 180 | Symbols in the DWARF debugging sections are relative to the beginning |
| 181 | of the section so we begin them at 0. */ |
| 182 | /* DWARF 1 */ |
| 183 | .debug 0 : { *(.debug) } |
| 184 | .line 0 : { *(.line) } |
| 185 | /* GNU DWARF 1 extensions */ |
| 186 | .debug_srcinfo 0 : { *(.debug_srcinfo) } |
| 187 | .debug_sfnames 0 : { *(.debug_sfnames) } |
| 188 | /* DWARF 1.1 and DWARF 2 */ |
| 189 | .debug_aranges 0 : { *(.debug_aranges) } |
| 190 | .debug_pubnames 0 : { *(.debug_pubnames) } |
| 191 | /* DWARF 2 */ |
| 192 | .debug_info 0 : { *(.debug_info .gnu.linkonce.wi.*) } |
| 193 | .debug_abbrev 0 : { *(.debug_abbrev) } |
| 194 | .debug_line 0 : { *(.debug_line .debug_line.* .debug_line_end ) } |
| 195 | .debug_frame 0 : { *(.debug_frame) } |
| 196 | .debug_str 0 : { *(.debug_str) } |
| 197 | .debug_loc 0 : { *(.debug_loc) } |
| 198 | .debug_macinfo 0 : { *(.debug_macinfo) } |
| 199 | /* SGI/MIPS DWARF 2 extensions */ |
| 200 | .debug_weaknames 0 : { *(.debug_weaknames) } |
| 201 | .debug_funcnames 0 : { *(.debug_funcnames) } |
| 202 | .debug_typenames 0 : { *(.debug_typenames) } |
| 203 | .debug_varnames 0 : { *(.debug_varnames) } |
| 204 | /* DWARF 3 */ |
| 205 | .debug_pubtypes 0 : { *(.debug_pubtypes) } |
| 206 | .debug_ranges 0 : { *(.debug_ranges) } |
| 207 | /* DWARF Extension. */ |
| 208 | .debug_macro 0 : { *(.debug_macro) } |
| 209 | .stack 0x80000 : |
| 210 | { |
| 211 | _stack = .; |
| 212 | *(.stack) |
| 213 | } |
| 214 | .ARM.attributes 0 : { KEEP (*(.ARM.attributes)) KEEP (*(.gnu.attributes)) } |
| 215 | .note.gnu.arm.ident 0 : { KEEP (*(.note.gnu.arm.ident)) } |
| 216 | /DISCARD/ : { *(.note.GNU-stack) *(.gnu_debuglink) *(.gnu.lto_*) *(.mdebug.*) } |
| 217 | } |