| 1 | # Copyright (C) 2014-2016 Free Software Foundation, Inc. |
| 2 | # |
| 3 | # Copying and distribution of this file, with or without modification, |
| 4 | # are permitted in any medium without royalty provided the copyright |
| 5 | # notice and this notice are preserved. |
| 6 | # |
| 7 | # This is just a raw copy of elfppc.sc and has not been otherwise modified |
| 8 | # |
| 9 | # Unusual variables checked by this code: |
| 10 | # NOP - four byte opcode for no-op (defaults to 0) |
| 11 | # DATA_ADDR - if end-of-text-plus-one-page isn't right for data start |
| 12 | # OTHER_READONLY_SECTIONS - other than .text .init .rodata ... |
| 13 | # (e.g., .PARISC.milli) |
| 14 | # OTHER_READWRITE_SECTIONS - other than .data .bss .ctors .sdata ... |
| 15 | # (e.g., .PARISC.global) |
| 16 | # ATTRS_SECTIONS - at the end |
| 17 | # OTHER_SECTIONS - at the end |
| 18 | # EXECUTABLE_SYMBOLS - symbols that must be defined for an |
| 19 | # executable (e.g., _DYNAMIC_LINK) |
| 20 | # TEXT_START_SYMBOLS - symbols that appear at the start of the |
| 21 | # .text section. |
| 22 | # DATA_START_SYMBOLS - symbols that appear at the start of the |
| 23 | # .data section. |
| 24 | # OTHER_BSS_SYMBOLS - symbols that appear at the start of the |
| 25 | # .bss section besides __bss_start. |
| 26 | # |
| 27 | # When adding sections, do note that the names of some sections are used |
| 28 | # when specifying the start address of the next. |
| 29 | |
| 30 | test -z "$ENTRY" && ENTRY=_start |
| 31 | test -z "${BIG_OUTPUT_FORMAT}" && BIG_OUTPUT_FORMAT=${OUTPUT_FORMAT} |
| 32 | test -z "${LITTLE_OUTPUT_FORMAT}" && LITTLE_OUTPUT_FORMAT=${OUTPUT_FORMAT} |
| 33 | test -z "$ATTRS_SECTIONS" && ATTRS_SECTIONS=".gnu.attributes 0 : { KEEP (*(.gnu.attributes)) }" |
| 34 | test "$LD_FLAG" = "N" && DATA_ADDR=. |
| 35 | SBSS2=".sbss2 ${RELOCATING-0} : { *(.sbss2) }" |
| 36 | SDATA2=".sdata2 ${RELOCATING-0} : { *(.sdata2) }" |
| 37 | INTERP=".interp ${RELOCATING-0} : { *(.interp) }" |
| 38 | PLT=".plt ${RELOCATING-0} : { *(.plt) }" |
| 39 | |
| 40 | cat <<EOF |
| 41 | /* Copyright (C) 2014-2016 Free Software Foundation, Inc. |
| 42 | |
| 43 | Copying and distribution of this script, with or without modification, |
| 44 | are permitted in any medium without royalty provided the copyright |
| 45 | notice and this notice are preserved. */ |
| 46 | |
| 47 | OUTPUT_FORMAT("${OUTPUT_FORMAT}", "${BIG_OUTPUT_FORMAT}", |
| 48 | "${LITTLE_OUTPUT_FORMAT}") |
| 49 | OUTPUT_ARCH(${ARCH}) |
| 50 | ${RELOCATING+ENTRY(${ENTRY})} |
| 51 | |
| 52 | ${RELOCATING+${LIB_SEARCH_DIRS}} |
| 53 | ${RELOCATING+/* Do we need any of these for elf? |
| 54 | __DYNAMIC = 0; ${STACKZERO+${STACKZERO}} ${SHLIB_PATH+${SHLIB_PATH}} */} |
| 55 | ${RELOCATING+${EXECUTABLE_SYMBOLS}} |
| 56 | ${RELOCATING- /* For some reason, the Solaris linker makes bad executables |
| 57 | if gld -r is used and the intermediate file has sections starting |
| 58 | at non-zero addresses. Could be a Solaris ld bug, could be a GNU ld |
| 59 | bug. But for now assigning the zero vmas works. */} |
| 60 | |
| 61 | ${RELOCATING+PROVIDE (__stack = 0);} |
| 62 | SECTIONS |
| 63 | { |
| 64 | /* Read-only sections, merged into text segment: */ |
| 65 | ${CREATE_SHLIB-${RELOCATING+. = ${TEXT_START_ADDR} + SIZEOF_HEADERS;}} |
| 66 | ${CREATE_SHLIB+${RELOCATING+. = SIZEOF_HEADERS;}} |
| 67 | ${CREATE_SHLIB-${INTERP}} |
| 68 | .hash ${RELOCATING-0} : { *(.hash) } |
| 69 | .dynsym ${RELOCATING-0} : { *(.dynsym) } |
| 70 | .dynstr ${RELOCATING-0} : { *(.dynstr) } |
| 71 | .gnu.version ${RELOCATING-0} : { *(.gnu.version) } |
| 72 | .gnu.version_d ${RELOCATING-0} : { *(.gnu.version_d) } |
| 73 | .gnu.version_r ${RELOCATING-0} : { *(.gnu.version_r) } |
| 74 | .rela.text ${RELOCATING-0} : |
| 75 | { *(.rela.text) *(.rela.gnu.linkonce.t*) } |
| 76 | .rela.data ${RELOCATING-0} : |
| 77 | { *(.rela.data) *(.rela.gnu.linkonce.d*) } |
| 78 | .rela.rodata ${RELOCATING-0} : |
| 79 | { *(.rela.rodata) *(.rela.gnu.linkonce.r*) } |
| 80 | .rela.got ${RELOCATING-0} : { *(.rela.got) } |
| 81 | .rela.got1 ${RELOCATING-0} : { *(.rela.got1) } |
| 82 | .rela.got2 ${RELOCATING-0} : { *(.rela.got2) } |
| 83 | .rela.ctors ${RELOCATING-0} : { *(.rela.ctors) } |
| 84 | .rela.dtors ${RELOCATING-0} : { *(.rela.dtors) } |
| 85 | .rela.init ${RELOCATING-0} : { *(.rela.init) } |
| 86 | .rela.fini ${RELOCATING-0} : { *(.rela.fini) } |
| 87 | .rela.bss ${RELOCATING-0} : { *(.rela.bss) } |
| 88 | .rela.plt ${RELOCATING-0} : { *(.rela.plt) } |
| 89 | .rela.sdata ${RELOCATING-0} : { *(.rela.sdata) } |
| 90 | .rela.sbss ${RELOCATING-0} : { *(.rela.sbss) } |
| 91 | .rela.sdata2 ${RELOCATING-0} : { *(.rela.sdata2) } |
| 92 | .rela.sbss2 ${RELOCATING-0} : { *(.rela.sbss2) } |
| 93 | .text ${RELOCATING-0} : |
| 94 | { |
| 95 | ${RELOCATING+${TEXT_START_SYMBOLS}} |
| 96 | *(.text) |
| 97 | /* .gnu.warning sections are handled specially by elf32.em. */ |
| 98 | *(.gnu.warning) |
| 99 | *(.gnu.linkonce.t*) |
| 100 | } =${NOP-0} |
| 101 | .init ${RELOCATING-0} : { *(.init) } =${NOP-0} |
| 102 | .fini ${RELOCATING-0} : { *(.fini) } =${NOP-0} |
| 103 | .rodata ${RELOCATING-0} : { *(.rodata) *(.gnu.linkonce.r*) } |
| 104 | .rodata1 ${RELOCATING-0} : { *(.rodata1) } |
| 105 | ${RELOCATING+_etext = .;} |
| 106 | ${RELOCATING+PROVIDE (etext = .);} |
| 107 | ${CREATE_SHLIB-${SDATA2}} |
| 108 | ${CREATE_SHLIB-${SBSS2}} |
| 109 | ${OTHER_READONLY_SECTIONS} |
| 110 | |
| 111 | /* Adjust the address for the data segment. We want to adjust up to |
| 112 | the same address within the page on the next page up. It would |
| 113 | be more correct to do this: |
| 114 | ${RELOCATING+. = ${DATA_ADDR-ALIGN(${MAXPAGESIZE}) + (ALIGN(8) & (${MAXPAGESIZE} - 1))};} |
| 115 | The current expression does not correctly handle the case of a |
| 116 | text segment ending precisely at the end of a page; it causes the |
| 117 | data segment to skip a page. The above expression does not have |
| 118 | this problem, but it will currently (2/95) cause BFD to allocate |
| 119 | a single segment, combining both text and data, for this case. |
| 120 | This will prevent the text segment from being shared among |
| 121 | multiple executions of the program; I think that is more |
| 122 | important than losing a page of the virtual address space (note |
| 123 | that no actual memory is lost; the page which is skipped can not |
| 124 | be referenced). */ |
| 125 | ${RELOCATING+. = ${DATA_ADDR- ALIGN(8) + ${MAXPAGESIZE}};} |
| 126 | |
| 127 | .data ${RELOCATING-0} : |
| 128 | { |
| 129 | ${RELOCATING+${DATA_START_SYMBOLS}} |
| 130 | *(.data) |
| 131 | *(.gnu.linkonce.d*) |
| 132 | ${CONSTRUCTING+CONSTRUCTORS} |
| 133 | } |
| 134 | .data1 ${RELOCATING-0} : { *(.data1) } |
| 135 | ${OTHER_READWRITE_SECTIONS} |
| 136 | |
| 137 | .got1 ${RELOCATING-0} : { *(.got1) } |
| 138 | .dynamic ${RELOCATING-0} : { *(.dynamic) } |
| 139 | |
| 140 | /* Put .ctors and .dtors next to the .got2 section, so that the pointers |
| 141 | get relocated with -mrelocatable. Also put in the .fixup pointers. |
| 142 | The current compiler no longer needs this, but keep it around for 2.7.2 */ |
| 143 | |
| 144 | ${RELOCATING+PROVIDE (_GOT2_START_ = .);} |
| 145 | .got2 ${RELOCATING-0} : { *(.got2) } |
| 146 | |
| 147 | ${RELOCATING+PROVIDE (__CTOR_LIST__ = .);} |
| 148 | .ctors ${RELOCATING-0} : { *(.ctors) } |
| 149 | ${RELOCATING+PROVIDE (__CTOR_END__ = .);} |
| 150 | |
| 151 | ${RELOCATING+PROVIDE (__DTOR_LIST__ = .);} |
| 152 | .dtors ${RELOCATING-0} : { *(.dtors) } |
| 153 | ${RELOCATING+PROVIDE (__DTOR_END__ = .);} |
| 154 | |
| 155 | ${RELOCATING+PROVIDE (_FIXUP_START_ = .);} |
| 156 | .fixup ${RELOCATING-0} : { *(.fixup) } |
| 157 | ${RELOCATING+PROVIDE (_FIXUP_END_ = .);} |
| 158 | ${RELOCATING+PROVIDE (_GOT2_END_ = .);} |
| 159 | |
| 160 | ${RELOCATING+PROVIDE (_GOT_START_ = .);} |
| 161 | .got ${RELOCATING-0} : { *(.got) } |
| 162 | .got.plt ${RELOCATING-0} : { *(.got.plt) } |
| 163 | ${CREATE_SHLIB+${SDATA2}} |
| 164 | ${CREATE_SHLIB+${SBSS2}} |
| 165 | ${RELOCATING+PROVIDE (_GOT_END_ = .);} |
| 166 | |
| 167 | /* We want the small data sections together, so single-instruction offsets |
| 168 | can access them all, and initialized data all before uninitialized, so |
| 169 | we can shorten the on-disk segment size. */ |
| 170 | .sdata ${RELOCATING-0} : { *(.sdata) } |
| 171 | ${RELOCATING+_edata = .;} |
| 172 | ${RELOCATING+PROVIDE (edata = .);} |
| 173 | .sbss ${RELOCATING-0} : |
| 174 | { |
| 175 | ${RELOCATING+PROVIDE (__sbss_start = .);} |
| 176 | *(.sbss) |
| 177 | *(.scommon) |
| 178 | *(.dynsbss) |
| 179 | ${RELOCATING+PROVIDE (__sbss_end = .);} |
| 180 | } |
| 181 | ${PLT} |
| 182 | .bss ${RELOCATING-0} : |
| 183 | { |
| 184 | ${RELOCATING+${OTHER_BSS_SYMBOLS}} |
| 185 | ${RELOCATING+PROVIDE (__bss_start = .);} |
| 186 | *(.dynbss) |
| 187 | *(.bss) |
| 188 | *(COMMON) |
| 189 | } |
| 190 | ${RELOCATING+_end = . ;} |
| 191 | ${RELOCATING+PROVIDE (end = .);} |
| 192 | |
| 193 | /* These are needed for ELF backends which have not yet been |
| 194 | converted to the new style linker. */ |
| 195 | .stab 0 : { *(.stab) } |
| 196 | .stabstr 0 : { *(.stabstr) } |
| 197 | |
| 198 | EOF |
| 199 | |
| 200 | . $srcdir/scripttempl/DWARF.sc |
| 201 | |
| 202 | cat <<EOF |
| 203 | ${ATTRS_SECTIONS} |
| 204 | ${OTHER_SECTIONS} |
| 205 | } |
| 206 | EOF |