# This variant of elf.sc is used for ARM BPABI platforms, like Symbian
# OS, where a separate postlinker will operated on the generated
# executable or shared object. See elf.sc for configuration variables
# that apply; only BPABI-specific variables will be noted here.
test -z "$ENTRY" && ENTRY=_start
test -z "${BIG_OUTPUT_FORMAT}" && BIG_OUTPUT_FORMAT=${OUTPUT_FORMAT}
test -z "${LITTLE_OUTPUT_FORMAT}" && LITTLE_OUTPUT_FORMAT=${OUTPUT_FORMAT}
if [ -z "$MACHINE" ]; then OUTPUT_ARCH=${ARCH}; else OUTPUT_ARCH=${ARCH}:${MACHINE}; fi
test -z "${ELFSIZE}" && ELFSIZE=32
test -z "${ALIGNMENT}" && ALIGNMENT="${ELFSIZE} / 8"
test "$LD_FLAG" = "N" && DATA_ADDR=.
test -n "$CREATE_SHLIB$CREATE_PIE" && test -n "$SHLIB_DATA_ADDR" && COMMONPAGESIZE=""
test -z "$CREATE_SHLIB$CREATE_PIE" && test -n "$DATA_ADDR" && COMMONPAGESIZE=""
test -n "$RELRO_NOW" && unset SEPARATE_GOTPLT
DATA_SEGMENT_ALIGN="ALIGN(${SEGMENT_SIZE}) + (. & (${MAXPAGESIZE} - 1))"
DATA_SEGMENT_RELRO_END=""
DATA_SEGMENT_RELRO_GOTPLT_END=""
DATA_SEGMENT_END=""
if test -n "${COMMONPAGESIZE}"; then
DATA_SEGMENT_ALIGN="ALIGN (${SEGMENT_SIZE}) - ((${MAXPAGESIZE} - .) & (${MAXPAGESIZE} - 1)); . = DATA_SEGMENT_ALIGN (${MAXPAGESIZE}, ${COMMONPAGESIZE})"
DATA_SEGMENT_END=". = DATA_SEGMENT_END (.);"
if test -n "${SEPARATE_GOTPLT}"; then
DATA_SEGMENT_RELRO_GOTPLT_END=". = DATA_SEGMENT_RELRO_END (. + ${SEPARATE_GOTPLT});"
else
DATA_SEGMENT_RELRO_END=". = DATA_SEGMENT_RELRO_END (.);"
fi
fi
INTERP=".interp 0 : { *(.interp) }"
PLT=".plt ${RELOCATING-0} : { *(.plt) }"
RODATA=".rodata ${RELOCATING-0} : { *(.rodata${RELOCATING+ .rodata.* .gnu.linkonce.r.*}) }"
DATARELRO=".data.rel.ro : { *(.data.rel.ro.local) *(.data.rel.ro*) }"
STACKNOTE="/DISCARD/ : { *(.note.GNU-stack) }"
if test -z "${NO_SMALL_DATA}"; then
SBSS=".sbss ${RELOCATING-0} :
{
${RELOCATING+PROVIDE (__sbss_start = .);}
${RELOCATING+PROVIDE (___sbss_start = .);}
*(.dynsbss)
*(.sbss${RELOCATING+ .sbss.* .gnu.linkonce.sb.*})
*(.scommon)
${RELOCATING+PROVIDE (__sbss_end = .);}
${RELOCATING+PROVIDE (___sbss_end = .);}
}"
SBSS2=".sbss2 ${RELOCATING-0} : { *(.sbss2${RELOCATING+ .sbss2.* .gnu.linkonce.sb2.*}) }"
SDATA="/* We want the small data sections together, so single-instruction offsets
can access them all, and initialized data all before uninitialized, so
we can shorten the on-disk segment size. */
.sdata ${RELOCATING-0} :
{
${RELOCATING+${SDATA_START_SYMBOLS}}
*(.sdata${RELOCATING+ .sdata.* .gnu.linkonce.s.*})
}"
SDATA2=".sdata2 ${RELOCATING-0} : { *(.sdata2${RELOCATING+ .sdata2.* .gnu.linkonce.s2.*}) }"
REL_SDATA=".rel.sdata ${RELOCATING-0} : { *(.rel.sdata${RELOCATING+ .rel.sdata.* .rel.gnu.linkonce.s.*}) }
.rela.sdata ${RELOCATING-0} : { *(.rela.sdata${RELOCATING+ .rela.sdata.* .rela.gnu.linkonce.s.*}) }"
REL_SBSS=".rel.sbss ${RELOCATING-0} : { *(.rel.sbss${RELOCATING+ .rel.sbss.* .rel.gnu.linkonce.sb.*}) }
.rela.sbss ${RELOCATING-0} : { *(.rela.sbss${RELOCATING+ .rela.sbss.* .rela.gnu.linkonce.sb.*}) }"
REL_SDATA2=".rel.sdata2 ${RELOCATING-0} : { *(.rel.sdata2${RELOCATING+ .rel.sdata2.* .rel.gnu.linkonce.s2.*}) }
.rela.sdata2 ${RELOCATING-0} : { *(.rela.sdata2${RELOCATING+ .rela.sdata2.* .rela.gnu.linkonce.s2.*}) }"
REL_SBSS2=".rel.sbss2 ${RELOCATING-0} : { *(.rel.sbss2${RELOCATING+ .rel.sbss2.* .rel.gnu.linkonce.sb2.*}) }
.rela.sbss2 ${RELOCATING-0} : { *(.rela.sbss2${RELOCATING+ .rela.sbss2.* .rela.gnu.linkonce.sb2.*}) }"
else
NO_SMALL_DATA=" "
fi
test -n "$SEPARATE_GOTPLT" && SEPARATE_GOTPLT=" "
CTOR=".ctors ${CONSTRUCTING-0} :
{
${CONSTRUCTING+${CTOR_START}}
/* gcc uses crtbegin.o to find the start of
the constructors, so we make sure it is
first. Because this is a wildcard, it
doesn't matter if the user does not
actually link against crtbegin.o; the
linker won't look for a file to match a
wildcard. The wildcard also means that it
doesn't matter which directory crtbegin.o
is in. */
KEEP (*crtbegin*.o(.ctors))
/* We don't want to include the .ctor section from
from the crtend.o file until after the sorted ctors.
The .ctor section from the crtend file contains the
end of ctors marker and it must be last */
KEEP (*(EXCLUDE_FILE (*crtend*.o $OTHER_EXCLUDE_FILES) .ctors))
KEEP (*(SORT(.ctors.*)))
KEEP (*(.ctors))
${CONSTRUCTING+${CTOR_END}}
}"
DTOR=".dtors ${CONSTRUCTING-0} :
{
${CONSTRUCTING+${DTOR_START}}
KEEP (*crtbegin*.o(.dtors))
KEEP (*(EXCLUDE_FILE (*crtend*.o $OTHER_EXCLUDE_FILES) .dtors))
KEEP (*(SORT(.dtors.*)))
KEEP (*(.dtors))
${CONSTRUCTING+${DTOR_END}}
}"
STACK=" .stack ${RELOCATING-0}${RELOCATING+${STACK_ADDR}} :
{
${RELOCATING+_stack = .;}
*(.stack)
}"
TEXT_START_ADDR="SEGMENT_START(\"text\", ${TEXT_START_ADDR})"
SHLIB_TEXT_START_ADDR="SEGMENT_START(\"text\", ${SHLIB_TEXT_START_ADDR:-0})"
DATA_ADDR="SEGMENT_START(\"data\", ${DATA_ADDR-${DATA_SEGMENT_ALIGN}})"
SHLIB_DATA_ADDR="SEGMENT_START(\"data\", ${SHLIB_DATA_ADDR-${DATA_SEGMENT_ALIGN}})"
# if this is for an embedded system, don't add SIZEOF_HEADERS.
if [ -z "$EMBEDDED" ]; then
test -z "${TEXT_BASE_ADDRESS}" && TEXT_BASE_ADDRESS="${TEXT_START_ADDR} + SIZEOF_HEADERS"
SHLIB_BASE_ADDRESS="${SHLIB_TEXT_START_ADDR} + SIZEOF_HEADERS"
else
test -z "${TEXT_BASE_ADDRESS}" && TEXT_BASE_ADDRESS="${TEXT_START_ADDR}"
SHLIB_BASE_ADDRESS="${SHLIB_TEXT_START_ADDR}"
fi
cat <<EOF
OUTPUT_FORMAT("${OUTPUT_FORMAT}", "${BIG_OUTPUT_FORMAT}",
"${LITTLE_OUTPUT_FORMAT}")
OUTPUT_ARCH(${OUTPUT_ARCH})
ENTRY(${ENTRY})
${RELOCATING+${LIB_SEARCH_DIRS}}
${RELOCATING+/* Do we need any of these for elf?
__DYNAMIC = 0; ${STACKZERO+${STACKZERO}} ${SHLIB_PATH+${SHLIB_PATH}} */}
${RELOCATING+${EXECUTABLE_SYMBOLS}}
${RELOCATING+${INPUT_FILES}}
${RELOCATING- /* For some reason, the Solaris linker makes bad executables
if gld -r is used and the intermediate file has sections starting
at non-zero addresses. Could be a Solaris ld bug, could be a GNU ld
bug. But for now assigning the zero vmas works. */}
/* ARM's proprietary toolchain generate these symbols to match the start
and end of particular sections of the image. SymbianOS uses these
symbols. We provide them for compatibility with ARM's toolchains.
These symbols should be bound locally; each shared object may define
its own version of these symbols. */
VERSION
{
/* Give these a dummy version to work around linker lameness.
The name used shouldn't matter as these are all local symbols. */
__GNU {
local:
Image\$\$ER_RO\$\$Base;
Image\$\$ER_RO\$\$Limit;
SHT\$\$INIT_ARRAY\$\$Base;
SHT\$\$INIT_ARRAY\$\$Limit;
.ARM.exidx\$\$Base;
.ARM.exidx\$\$Limit;
};
}
SECTIONS
{
/* Read-only sections, merged into text segment: */
${CREATE_SHLIB-${CREATE_PIE-${RELOCATING+PROVIDE (__executable_start = ${TEXT_START_ADDR});}}}
${CREATE_SHLIB-${CREATE_PIE-${RELOCATING+ . = ${TEXT_BASE_ADDRESS};}}}
${CREATE_SHLIB+${RELOCATING+. = ${SHLIB_BASE_ADDRESS};}}
${CREATE_PIE+${RELOCATING+. = ${SHLIB_BASE_ADDRESS};}}
/* Define Image\$\$ER_RO\$\$Base. */
${RELOCATING+PROVIDE (Image\$\$ER_RO\$\$Base = .);}
${INITIAL_READONLY_SECTIONS}
EOF
cat <<EOF
.init ${RELOCATING-0} :
{
${RELOCATING+${INIT_START}}
KEEP (*(.init))
${RELOCATING+${INIT_END}}
} =${NOP-0}
.text ${RELOCATING-0} :
{
${RELOCATING+${TEXT_START_SYMBOLS}}
*(.text .stub${RELOCATING+ .text.* .gnu.linkonce.t.*})
KEEP (*(.text.*personality*))
/* .gnu.warning sections are handled specially by elf32.em. */
*(.gnu.warning)
${RELOCATING+${OTHER_TEXT_SECTIONS}}
} =${NOP-0}
.fini ${RELOCATING-0} :
{
${RELOCATING+${FINI_START}}
KEEP (*(.fini))
${RELOCATING+${FINI_END}}
} =${NOP-0}
/* The SymbianOS kernel requires that the PLT go at the end of the
text section. */
${DATA_PLT-${BSS_PLT-${PLT}}}
${RELOCATING+PROVIDE (__etext = .);}
${RELOCATING+PROVIDE (_etext = .);}
${RELOCATING+PROVIDE (etext = .);}
/* Define Image\$\$ER_RO\$\$Limit. */
${RELOCATING+PROVIDE (Image\$\$ER_RO\$\$Limit = .);}
${WRITABLE_RODATA-${RODATA}}
.rodata1 ${RELOCATING-0} : { *(.rodata1) }
${CREATE_SHLIB-${SDATA2}}
${CREATE_SHLIB-${SBSS2}}
/* On SymbianOS, put .init_array and friends in the read-only
segment; there is no runtime relocation applied to these
arrays. */
/* Ensure the __preinit_array_start label is properly aligned. We
could instead move the label definition inside the section, but
the linker would then create the section even if it turns out to
be empty, which isn't pretty. */
${RELOCATING+. = ALIGN(${ALIGNMENT});}
${RELOCATING+${CREATE_SHLIB-PROVIDE (__preinit_array_start = .);}}
.preinit_array ${RELOCATING-0} : { *(.preinit_array) }
${RELOCATING+${CREATE_SHLIB-PROVIDE (__preinit_array_end = .);}}
${RELOCATING+${CREATE_SHLIB-PROVIDE (__init_array_start = .);}}
/* SymbianOS uses this symbol. */
${RELOCATING+PROVIDE (SHT\$\$INIT_ARRAY\$\$Base = .);}
.init_array ${RELOCATING-0} : { *(.init_array) }
/* SymbianOS uses this symbol. */
${RELOCATING+PROVIDE (SHT\$\$INIT_ARRAY\$\$Limit = .);}
${RELOCATING+${CREATE_SHLIB-PROVIDE (__init_array_end = .);}}
${RELOCATING+${CREATE_SHLIB-PROVIDE (__fini_array_start = .);}}
.fini_array ${RELOCATING-0} : { *(.fini_array) }
${RELOCATING+${CREATE_SHLIB-PROVIDE (__fini_array_end = .);}}
${OTHER_READONLY_SECTIONS}
.eh_frame_hdr : { *(.eh_frame_hdr) }
.eh_frame ${RELOCATING-0} : ONLY_IF_RO { KEEP (*(.eh_frame)) }
.gcc_except_table ${RELOCATING-0} : ONLY_IF_RO { KEEP (*(.gcc_except_table)) *(.gcc_except_table.*) }
/* Adjust the address for the data segment. We want to adjust up to
the same address within the page on the next page up. */
${CREATE_SHLIB-${CREATE_PIE-${RELOCATING+. = ${DATA_ADDR};}}}
${CREATE_SHLIB+${RELOCATING+. = ${SHLIB_DATA_ADDR};}}
${CREATE_PIE+${RELOCATING+. = ${SHLIB_DATA_ADDR};}}
/* Exception handling */
.eh_frame ${RELOCATING-0} : ONLY_IF_RW { KEEP (*(.eh_frame)) }
.gcc_except_table ${RELOCATING-0} : ONLY_IF_RW { KEEP (*(.gcc_except_table)) *(.gcc_except_table.*) }
/* Thread Local Storage sections */
.tdata ${RELOCATING-0} : { *(.tdata${RELOCATING+ .tdata.* .gnu.linkonce.td.*}) }
.tbss ${RELOCATING-0} : { *(.tbss${RELOCATING+ .tbss.* .gnu.linkonce.tb.*})${RELOCATING+ *(.tcommon)} }
${RELOCATING+${CTOR}}
${RELOCATING+${DTOR}}
.jcr ${RELOCATING-0} : { KEEP (*(.jcr)) }
${RELOCATING+${DATARELRO}}
${OTHER_RELRO_SECTIONS}
${RELOCATING+${DATA_SEGMENT_RELRO_END}}
${DATA_PLT+${PLT_BEFORE_GOT-${PLT}}}
.data ${RELOCATING-0} :
{
${RELOCATING+${DATA_START_SYMBOLS}}
*(.data${RELOCATING+ .data.* .gnu.linkonce.d.*})
KEEP (*(.gnu.linkonce.d.*personality*))
${CONSTRUCTING+SORT(CONSTRUCTORS)}
}
.data1 ${RELOCATING-0} : { *(.data1) }
${WRITABLE_RODATA+${RODATA}}
${OTHER_READWRITE_SECTIONS}
${DATA_PLT+${PLT_BEFORE_GOT+${PLT}}}
${CREATE_SHLIB+${SDATA2}}
${CREATE_SHLIB+${SBSS2}}
${SDATA}
${OTHER_SDATA_SECTIONS}
${RELOCATING+_edata = .;}
${RELOCATING+PROVIDE (edata = .);}
${RELOCATING+. = DEFINED(__bss_segment_start) ? __bss_segment_start : .;}
${RELOCATING+__bss_start = .;}
${RELOCATING+${OTHER_BSS_SYMBOLS}}
${SBSS}
${BSS_PLT+${PLT}}
.bss ${RELOCATING-0} :
{
*(.dynbss)
*(.bss${RELOCATING+ .bss.* .gnu.linkonce.b.*})
*(COMMON)
/* Align here to ensure that the .bss section occupies space up to
_end. Align after .bss to ensure correct alignment even if the
.bss section disappears because there are no input sections. */
${RELOCATING+. = ALIGN(${ALIGNMENT});}
}
${OTHER_BSS_SECTIONS}
${RELOCATING+. = ALIGN(${ALIGNMENT});}
${RELOCATING+_end = .;}
${RELOCATING+${OTHER_BSS_END_SYMBOLS}}
${RELOCATING+PROVIDE (end = .);}
${RELOCATING+${DATA_SEGMENT_END}}
/* These sections are not mapped under the BPABI. */
.dynamic 0 : { *(.dynamic) }
.hash 0 : { *(.hash) }
.dynsym 0 : { *(.dynsym) }
.dynstr 0 : { *(.dynstr) }
.gnu.version 0 : { *(.gnu.version) }
.gnu.version_d 0: { *(.gnu.version_d) }
.gnu.version_r 0: { *(.gnu.version_r) }
${CREATE_SHLIB-${INTERP}}
/* Stabs debugging sections. */
.stab 0 : { *(.stab) }
.stabstr 0 : { *(.stabstr) }
.stab.excl 0 : { *(.stab.excl) }
.stab.exclstr 0 : { *(.stab.exclstr) }
.stab.index 0 : { *(.stab.index) }
.stab.indexstr 0 : { *(.stab.indexstr) }
.comment 0 : { *(.comment) }
/* DWARF debug sections.
Symbols in the DWARF debugging sections are relative to the beginning
of the section so we begin them at 0. */
/* DWARF 1 */
.debug 0 : { *(.debug) }
.line 0 : { *(.line) }
/* GNU DWARF 1 extensions */
.debug_srcinfo 0 : { *(.debug_srcinfo) }
.debug_sfnames 0 : { *(.debug_sfnames) }
/* DWARF 1.1 and DWARF 2 */
.debug_aranges 0 : { *(.debug_aranges) }
.debug_pubnames 0 : { *(.debug_pubnames) }
/* DWARF 2 */
.debug_info 0 : { *(.debug_info .gnu.linkonce.wi.*) }
.debug_abbrev 0 : { *(.debug_abbrev) }
.debug_line 0 : { *(.debug_line) }
.debug_frame 0 : { *(.debug_frame) }
.debug_str 0 : { *(.debug_str) }
.debug_loc 0 : { *(.debug_loc) }
.debug_macinfo 0 : { *(.debug_macinfo) }
/* SGI/MIPS DWARF 2 extensions */
.debug_weaknames 0 : { *(.debug_weaknames) }
.debug_funcnames 0 : { *(.debug_funcnames) }
.debug_typenames 0 : { *(.debug_typenames) }
.debug_varnames 0 : { *(.debug_varnames) }
${STACK_ADDR+${STACK}}
${OTHER_SECTIONS}
${RELOCATING+${OTHER_END_SYMBOLS}}
${RELOCATING+${STACKNOTE}}
EOF
# These relocations sections are part of the read-only segment in SVR4
# executables, but are not mapped in BPABI executables.
if [ "x$COMBRELOC" = x ]; then
COMBRELOCCAT=cat
else
COMBRELOCCAT="cat > $COMBRELOC"
fi
eval $COMBRELOCCAT <<EOF
.rel.init 0 : { *(.rel.init) }
.rela.init 0 : { *(.rela.init) }
.rel.text 0 : { *(.rel.text${RELOCATING+ .rel.text.* .rel.gnu.linkonce.t.*}) }
.rela.text 0 : { *(.rela.text${RELOCATING+ .rela.text.* .rela.gnu.linkonce.t.*}) }
.rel.fini 0 : { *(.rel.fini) }
.rela.fini 0 : { *(.rela.fini) }
.rel.rodata 0 : { *(.rel.rodata${RELOCATING+ .rel.rodata.* .rel.gnu.linkonce.r.*}) }
.rela.rodata 0 : { *(.rela.rodata${RELOCATING+ .rela.rodata.* .rela.gnu.linkonce.r.*}) }
${OTHER_READONLY_RELOC_SECTIONS}
.rel.data.rel.ro 0 : { *(.rel.data.rel.ro${RELOCATING+*}) }
.rela.data.rel.ro 0 : { *(.rel.data.rel.ro${RELOCATING+*}) }
.rel.data 0 : { *(.rel.data${RELOCATING+ .rel.data.* .rel.gnu.linkonce.d.*}) }
.rela.data 0 : { *(.rela.data${RELOCATING+ .rela.data.* .rela.gnu.linkonce.d.*}) }
.rel.tdata 0 : { *(.rel.tdata${RELOCATING+ .rel.tdata.* .rel.gnu.linkonce.td.*}) }
.rela.tdata 0 : { *(.rela.tdata${RELOCATING+ .rela.tdata.* .rela.gnu.linkonce.td.*}) }
.rel.tbss 0 : { *(.rel.tbss${RELOCATING+ .rel.tbss.* .rel.gnu.linkonce.tb.*}) }
.rela.tbss 0 : { *(.rela.tbss${RELOCATING+ .rela.tbss.* .rela.gnu.linkonce.tb.*}) }
.rel.ctors 0 : { *(.rel.ctors) }
.rela.ctors 0 : { *(.rela.ctors) }
.rel.dtors 0 : { *(.rel.dtors) }
.rela.dtors 0 : { *(.rela.dtors) }
${REL_SDATA}
${REL_SBSS}
${REL_SDATA2}
${REL_SBSS2}
.rel.bss 0 : { *(.rel.bss${RELOCATING+ .rel.bss.* .rel.gnu.linkonce.b.*}) }
.rela.bss 0 : { *(.rela.bss${RELOCATING+ .rela.bss.* .rela.gnu.linkonce.b.*}) }
EOF
if [ -n "$COMBRELOC" ]; then
cat <<EOF
.rel.dyn 0 :
{
EOF
sed -e '/^[ ]*[{}][ ]*$/d;/:[ ]*$/d;/\.rela\./d;s/^.*: { *\(.*\)}$/ \1/' $COMBRELOC
cat <<EOF
}
.rela.dyn 0 :
{
EOF
sed -e '/^[ ]*[{}][ ]*$/d;/:[ ]*$/d;/\.rel\./d;s/^.*: { *\(.*\)}/ \1/' $COMBRELOC
cat <<EOF
}
EOF
fi
cat <<EOF
.rel.plt 0 : { *(.rel.plt) }
.rela.plt 0 : { *(.rela.plt) }
${OTHER_PLT_RELOC_SECTIONS}
}
EOF