diff options
Diffstat (limited to 'ld/scripttempl/elf.sc')
| -rw-r--r-- | ld/scripttempl/elf.sc | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/ld/scripttempl/elf.sc b/ld/scripttempl/elf.sc index eb74743..d9e63e7 100644 --- a/ld/scripttempl/elf.sc +++ b/ld/scripttempl/elf.sc @@ -8,6 +8,8 @@ # NOP - four byte opcode for no-op (defaults to none) # NO_SMALL_DATA - no .sbss/.sbss2/.sdata/.sdata2 sections if not # empty. +# HAVE_NOINIT - Include a .noinit output section in the script. +# HAVE_PERSISTENT - Include a .persistent output section in the script. # SMALL_DATA_CTOR - .ctors contains small data. # SMALL_DATA_DTOR - .dtors contains small data. # DATA_ADDR - if end-of-text-plus-one-page isn't right for data start @@ -103,6 +105,8 @@ # .lrodata .gnu.linkonce.lr.foo # .ldata .gnu.linkonce.l.foo # .lbss .gnu.linkonce.lb.foo +# .noinit .gnu.linkonce.n.foo +# .persistent .gnu.linkonce.p.foo # # Each of these can also have corresponding .rel.* and .rela.* sections. @@ -322,6 +326,28 @@ STACK=".stack ${RELOCATING-0}${RELOCATING+${STACK_ADDR}} : *(.stack) ${RELOCATING+${STACK_SENTINEL}} }" +test "${HAVE_NOINIT}" = "yes" && NOINIT=" + /* This section contains data that is not initialized during load, + or during the application's initialization sequence. */ + .noinit (NOLOAD) : + { + ${RELOCATING+. = ALIGN(${ALIGNMENT});} + ${RELOCATING+PROVIDE (__noinit_start = .);} + *(.noinit${RELOCATING+ .noinit.* .gnu.linkonce.n.*}) + ${RELOCATING+. = ALIGN(${ALIGNMENT});} + ${RELOCATING+PROVIDE (__noinit_end = .);} + }" +test "${HAVE_PERSISTENT}" = "yes" && PERSISTENT=" + /* This section contains data that is initialized during load, + but not during the application's initialization sequence. */ + .persistent : + { + ${RELOCATING+. = ALIGN(${ALIGNMENT});} + ${RELOCATING+PROVIDE (__persistent_start = .);} + *(.persistent${RELOCATING+ .persistent.* .gnu.linkonce.p.*}) + ${RELOCATING+. = ALIGN(${ALIGNMENT});} + ${RELOCATING+PROVIDE (__persistent_end = .);} + }" TEXT_START_ADDR="SEGMENT_START(\"text-segment\", ${TEXT_START_ADDR})" SHLIB_TEXT_START_ADDR="SEGMENT_START(\"text-segment\", ${SHLIB_TEXT_START_ADDR:-0})" @@ -645,6 +671,7 @@ cat <<EOF ${DATA_SDATA-${SDATA}} ${DATA_SDATA-${OTHER_SDATA_SECTIONS}} ${RELOCATING+${DATA_END_SYMBOLS-${CREATE_SHLIB+PROVIDE (}${USER_LABEL_PREFIX}_edata = .${CREATE_SHLIB+)}; PROVIDE (${USER_LABEL_PREFIX}edata = .);}} + ${PERSISTENT} ${RELOCATING+. = .;} ${RELOCATING+${CREATE_SHLIB+PROVIDE (}${USER_LABEL_PREFIX}__bss_start = .${CREATE_SHLIB+)};} ${RELOCATING+${OTHER_BSS_SYMBOLS}} @@ -665,6 +692,7 @@ cat <<EOF ${OTHER_BSS_SECTIONS} ${LARGE_BSS_AFTER_BSS+${LARGE_BSS}} ${RELOCATING+${OTHER_BSS_END_SYMBOLS}} + ${NOINIT} ${RELOCATING+. = ALIGN(${ALIGNMENT});} EOF |