diff options
Diffstat (limited to 'ld/scripttempl/elfxtensa.sc')
| -rw-r--r-- | ld/scripttempl/elfxtensa.sc | 64 |
1 files changed, 47 insertions, 17 deletions
diff --git a/ld/scripttempl/elfxtensa.sc b/ld/scripttempl/elfxtensa.sc index f99d2ce..632cf6d 100644 --- a/ld/scripttempl/elfxtensa.sc +++ b/ld/scripttempl/elfxtensa.sc @@ -10,6 +10,8 @@ # OTHER_TEXT_SECTIONS - these get put in .text when relocating # OTHER_READWRITE_SECTIONS - other than .data .bss .ctors .sdata ... # (e.g., .PARISC.global) +# OTHER_RELRO_SECTIONS - other than .data.rel.ro ... +# (e.g. PPC32 .fixup, .got[12]) # OTHER_BSS_SECTIONS - other than .bss .sbss ... # OTHER_SECTIONS - at the end # EXECUTABLE_SYMBOLS - symbols that must be defined for an @@ -67,17 +69,24 @@ test -z "$ENTRY" && ENTRY=_start test -z "${ELFSIZE}" && ELFSIZE=32 test -z "${ALIGNMENT}" && ALIGNMENT="${ELFSIZE} / 8" test "$LD_FLAG" = "N" && DATA_ADDR=. -test -n "$CREATE_SHLIB" && test -n "$SHLIB_DATA_ADDR" && COMMONPAGESIZE="" -test -z "$CREATE_SHLIB" && test -n "$DATA_ADDR" && COMMONPAGESIZE="" +test -n "$CREATE_SHLIB$CREATE_PIE" && test -n "$SHLIB_DATA_ADDR" && COMMONPAGESIZE="" +test -z "$CREATE_SHLIB$CREATE_PIE" && test -n "$DATA_ADDR" && COMMONPAGESIZE="" DATA_SEGMENT_ALIGN="ALIGN(${SEGMENT_SIZE}) + (. & (${MAXPAGESIZE} - 1))" +DATA_SEGMENT_RELRO_END="" DATA_SEGMENT_END="" if test -n "${COMMONPAGESIZE}"; then DATA_SEGMENT_ALIGN="ALIGN (${SEGMENT_SIZE}) - ((${MAXPAGESIZE} - .) & (${MAXPAGESIZE} - 1)); . = DATA_SEGMENT_ALIGN (${MAXPAGESIZE}, ${COMMONPAGESIZE})" DATA_SEGMENT_END=". = DATA_SEGMENT_END (.);" + DATA_SEGMENT_RELRO_END=". = DATA_SEGMENT_RELRO_END (.);" fi INTERP=".interp ${RELOCATING-0} : { *(.interp) }" +if test -z "$GOT"; then + GOT=".got ${RELOCATING-0} : { *(.got) }" +fi DYNAMIC=".dynamic ${RELOCATING-0} : { *(.dynamic) }" 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) }" INIT_LIT=".init.literal 0 : { *(.init.literal) }" INIT=".init 0 : { *(.init) }" FINI_LIT=".fini.literal 0 : { *(.fini.literal) }" @@ -111,6 +120,8 @@ if test -z "${NO_SMALL_DATA}"; then .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 CTOR=".ctors ${CONSTRUCTING-0} : { @@ -175,8 +186,9 @@ ${RELOCATING- /* For some reason, the Solaris linker makes bad executables SECTIONS { /* Read-only sections, merged into text segment: */ - ${CREATE_SHLIB-${RELOCATING+. = ${TEXT_BASE_ADDRESS};}} + ${CREATE_SHLIB-${CREATE_PIE-${RELOCATING+PROVIDE (__executable_start = ${TEXT_START_ADDR}); . = ${TEXT_BASE_ADDRESS};}}} ${CREATE_SHLIB+${RELOCATING+. = ${SHLIB_TEXT_START_ADDR:-0} + SIZEOF_HEADERS;}} + ${CREATE_PIE+${RELOCATING+. = ${SHLIB_TEXT_START_ADDR:-0} + SIZEOF_HEADERS;}} ${CREATE_SHLIB-${INTERP}} ${INITIAL_READONLY_SECTIONS} ${TEXT_DYNAMIC+${DYNAMIC}} @@ -203,6 +215,8 @@ eval $COMBRELOCCAT <<EOF .rel.rodata ${RELOCATING-0} : { *(.rel.rodata${RELOCATING+ .rel.rodata.* .rel.gnu.linkonce.r.*}) } .rela.rodata ${RELOCATING-0} : { *(.rela.rodata${RELOCATING+ .rela.rodata.* .rela.gnu.linkonce.r.*}) } ${OTHER_READONLY_RELOC_SECTIONS} + .rel.data.rel.ro ${RELOCATING-0} : { *(.rel.data.rel.ro${RELOCATING+*}) } + .rela.data.rel.ro ${RELOCATING-0} : { *(.rel.data.rel.ro${RELOCATING+*}) } .rel.data ${RELOCATING-0} : { *(.rel.data${RELOCATING+ .rel.data.* .rel.gnu.linkonce.d.*}) } .rela.data ${RELOCATING-0} : { *(.rela.data${RELOCATING+ .rela.data.* .rela.gnu.linkonce.d.*}) } .rel.tdata ${RELOCATING-0} : { *(.rel.tdata${RELOCATING+ .rel.tdata.* .rel.gnu.linkonce.td.*}) } @@ -257,7 +271,8 @@ cat <<EOF ${RELOCATING+${INIT_END}} ${RELOCATING+${TEXT_START_SYMBOLS}} - *(.literal .text .stub${RELOCATING+ .text.* .gnu.linkonce.t.*.literal .gnu.linkonce.t.*}) + *(.literal .text .stub${RELOCATING+ .text.* .gnu.linkonce.literal.* .gnu.linkonce.t.*.literal .gnu.linkonce.t.*}) + KEEP (*(.text.*personality*)) /* .gnu.warning sections are handled specially by elf32.em. */ *(.gnu.warning) ${RELOCATING+${OTHER_TEXT_SECTIONS}} @@ -280,11 +295,22 @@ cat <<EOF ${CREATE_SHLIB-${SBSS2}} ${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. */ - ${CREATE_SHLIB-${RELOCATING+. = ${DATA_ADDR-${DATA_SEGMENT_ALIGN}};}} + ${CREATE_SHLIB-${CREATE_PIE-${RELOCATING+. = ${DATA_ADDR-${DATA_SEGMENT_ALIGN}};}}} ${CREATE_SHLIB+${RELOCATING+. = ${SHLIB_DATA_ADDR-${DATA_SEGMENT_ALIGN}};}} + ${CREATE_PIE+${RELOCATING+. = ${SHLIB_DATA_ADDR-${DATA_SEGMENT_ALIGN}};}} + + /* 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)} } /* Ensure the __preinit_array_start label is properly aligned. We could instead move the label definition inside the section, but @@ -292,36 +318,39 @@ cat <<EOF be empty, which isn't pretty. */ ${RELOCATING+. = ALIGN(${ALIGNMENT});} ${RELOCATING+${CREATE_SHLIB-PROVIDE (__preinit_array_start = .);}} - .preinit_array ${RELOCATING-0} : { *(.preinit_array) } + .preinit_array ${RELOCATING-0} : { KEEP (*(.preinit_array)) } ${RELOCATING+${CREATE_SHLIB-PROVIDE (__preinit_array_end = .);}} ${RELOCATING+${CREATE_SHLIB-PROVIDE (__init_array_start = .);}} - .init_array ${RELOCATING-0} : { *(.init_array) } + .init_array ${RELOCATING-0} : { KEEP (*(.init_array)) } ${RELOCATING+${CREATE_SHLIB-PROVIDE (__init_array_end = .);}} ${RELOCATING+${CREATE_SHLIB-PROVIDE (__fini_array_start = .);}} - .fini_array ${RELOCATING-0} : { *(.fini_array) } + .fini_array ${RELOCATING-0} : { KEEP (*(.fini_array)) } ${RELOCATING+${CREATE_SHLIB-PROVIDE (__fini_array_end = .);}} + ${RELOCATING+${CTOR}} + ${RELOCATING+${DTOR}} + .jcr ${RELOCATING-0} : { KEEP (*(.jcr)) } + + ${RELOCATING+${DATARELRO}} + ${OTHER_RELRO_SECTIONS} + ${TEXT_DYNAMIC-${DYNAMIC}} + ${NO_SMALL_DATA+${GOT}} + ${RELOCATING+${DATA_SEGMENT_RELRO_END}} + .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) } - .tdata ${RELOCATING-0} : { *(.tdata${RELOCATING+ .tdata.* .gnu.linkonce.td.*}) } - .tbss ${RELOCATING-0} : { *(.tbss${RELOCATING+ .tbss.* .gnu.linkonce.tb.*})${RELOCATING+ *(.tcommon)} } - .eh_frame ${RELOCATING-0} : { KEEP (*(.eh_frame)) } - .gcc_except_table ${RELOCATING-0} : { *(.gcc_except_table) } ${WRITABLE_RODATA+${RODATA}} ${OTHER_READWRITE_SECTIONS} - ${TEXT_DYNAMIC-${DYNAMIC}} - ${RELOCATING+${CTOR}} - ${RELOCATING+${DTOR}} - .jcr ${RELOCATING-0} : { KEEP (*(.jcr)) } ${RELOCATING+${OTHER_GOT_SYMBOLS}} - .got ${RELOCATING-0} : { *(.got) } + ${NO_SMALL_DATA-${GOT}} ${OTHER_GOT_SECTIONS} ${CREATE_SHLIB+${SDATA2}} ${CREATE_SHLIB+${SBSS2}} @@ -393,5 +422,6 @@ cat <<EOF ${STACK_ADDR+${STACK}} ${OTHER_SECTIONS} ${RELOCATING+${OTHER_END_SYMBOLS}} + ${RELOCATING+${STACKNOTE}} } EOF |