ELF ld -r scripts

"ld -r" generally should not combine object file sections with
different names.  For example, "ld -r" should not combine ".text",
".text.hot" and ".text.cold" into an output ".text" section.  An
exception needs to be made for linker created sections, for example,
branch trampoline sections that might be created even for ld -r.

"ld -r" also should not define symbols in linker scripts.  Any
definitions are likely to conflict with those defined at final link.

A MEMORY spec is also not needed for ld -r.

	* Makefile.am (eelf32btsmip_fbsd.c, eelf32btsmipn32_fbsd.c),
	(eelf32epiphany.c, eelf32epiphany_4x4.c, eelf32ltsmip_fbsd.c),
	(eelf32ltsmipn32_fbsd.c, eelf32xc16x.c, eelf32xc16xl.c),
	(eelf32xc16xs.c, emcorepe.c, enios2elf.c, enios2linux.c),
	(eelf64btsmip_fbsd.c, eelf64ltsmip_fbsd.c): Correct dependencies.
	* Makefile.in: Regenerate.
	* emulparams/aarch64cloudabi.sh, * emulparams/aarch64fbsd.sh,
	* emulparams/aarch64linux.sh, * emulparams/aarch64linux32.sh,
	* emulparams/arc-nps.sh, * emulparams/elf32_spu.sh,
	* emulparams/elf32_tic6x_le.sh, * emulparams/elf32bmip.sh,
	* emulparams/elf32btsmipn32.sh, * emulparams/elf32lr5900n32.sh,
	* emulparams/elf32mep.sh, * emulparams/elf32metag.sh,
	* emulparams/elf64btsmip.sh, * emulparams/shelf_vxworks.sh,
	* emulparams/shlelf_fd.sh, * scripttempl/DWARF.sc,
	* scripttempl/alpha.sc, * scripttempl/alphavms.sc,
	* scripttempl/arclinux.sc, * scripttempl/armbpabi.sc,
	* scripttempl/avr.sc, * scripttempl/dlx.sc, * scripttempl/elf.sc,
	* scripttempl/elf32cr16.sc, * scripttempl/elf32cr16c.sc,
	* scripttempl/elf32crx.sc, * scripttempl/elf32msp430.sc,
	* scripttempl/elf32msp430_3.sc, * scripttempl/elf32xc16x.sc,
	* scripttempl/elf32xc16xl.sc, * scripttempl/elf32xc16xs.sc,
	* scripttempl/elf64hppa.sc, * scripttempl/elf_chaos.sc,
	* scripttempl/elfarc.sc, * scripttempl/elfarcv2.sc,
	* scripttempl/elfd10v.sc, * scripttempl/elfd30v.sc,
	* scripttempl/elfm68hc11.sc, * scripttempl/elfm68hc12.sc,
	* scripttempl/elfm9s12z.sc, * scripttempl/elfmicroblaze.sc,
	* scripttempl/elfxgate.sc, * scripttempl/elfxtensa.sc,
	* scripttempl/epiphany_4x4.sc, * scripttempl/ft32.sc,
	* scripttempl/hppaelf.sc, * scripttempl/ia64vms.sc,
	* scripttempl/ip2k.sc, * scripttempl/iq2000.sc,
	* scripttempl/mep.sc, * scripttempl/mmo.sc,
	* scripttempl/nds32elf.sc, * scripttempl/pru.sc,
	* scripttempl/sh.sc, * scripttempl/v850.sc,
	* scripttempl/v850_rh850.sc, * scripttempl/visium.sc,
	* scripttempl/xstormy16.sc: Condition various parts of scripts on
	${RELOCATABLE} in order to prevent ld -r merging sections or
	defining symbols.  Remove MEMORY and VERSION definitions from
	ld -r scripts too.
	* testsuite/ld-elf/group2.d, * testsuite/ld-elf/group4.d,
	* testsuite/ld-elf/group5.d, * testsuite/ld-elf/group6.d,
	* testsuite/ld-elf/group7.d, * testsuite/ld-elf/group8a.d,
	* testsuite/ld-elf/group8b.d, * testsuite/ld-elf/group9a.d,
	* testsuite/ld-elf/group9b.d, * testsuite/ld-elf/pr17550a.d,
	* testsuite/ld-elf/pr17550b.d,
	* testsuite/ld-elf/pr17550d.d: Don't xfail cr16 and crx.
	* testsuite/ld-elf/init-fini-arrays.d,
	* testsuite/ld-elf/pr22677.d: Likewise, and dont' xfail mep.

1 files changed, 43 insertions, 45 deletions

diff --git a/ld/scripttempl/elf.sc b/ld/scripttempl/elf.sc
index b10e330..d3e1828 100644
--- a/ld/scripttempl/elf.sc
+++ b/ld/scripttempl/elf.sc
@@ -144,16 +144,16 @@ if test -z "${INITIAL_READONLY_SECTIONS}${CREATE_SHLIB}"; then
 fi
 if test -z "$PLT"; then
   IPLT=".iplt         ${RELOCATING-0} : { *(.iplt) }"
-  PLT=".plt          ${RELOCATING-0} : { *(.plt)${IREL_IN_PLT+ *(.iplt)} }
+  PLT=".plt          ${RELOCATING-0} : { *(.plt)${RELOCATING+${IREL_IN_PLT+ *(.iplt)}} }
   ${IREL_IN_PLT-$IPLT}"
 fi
 test -n "${DATA_PLT-${BSS_PLT-text}}" && TEXT_PLT=
 if test -z "$GOT"; then
   if test -z "$SEPARATE_GOTPLT"; then
-    GOT=".got          ${RELOCATING-0} : { *(.got.plt) *(.igot.plt) *(.got) *(.igot) }"
+    GOT=".got          ${RELOCATING-0} : {${RELOCATING+ *(.got.plt) *(.igot.plt)} *(.got)${RELOCATING+ *(.igot)} }"
   else
-    GOT=".got          ${RELOCATING-0} : { *(.got) *(.igot) }"
-    GOTPLT=".got.plt      ${RELOCATING-0} : { *(.got.plt)  *(.igot.plt) }"
+    GOT=".got          ${RELOCATING-0} : { *(.got)${RELOCATING+ *(.igot)} }"
+    GOTPLT=".got.plt      ${RELOCATING-0} : { *(.got.plt)${RELOCATING+ *(.igot.plt)} }"
   fi
 fi
 REL_IFUNC=".rel.ifunc    ${RELOCATING-0} : { *(.rel.ifunc) }"
@@ -179,9 +179,9 @@ if test -z "${NO_SMALL_DATA}"; then
   {
     ${RELOCATING+${SBSS_START_SYMBOLS}}
     ${CREATE_SHLIB+*(.${SBSS_NAME}2 .${SBSS_NAME}2.* .gnu.linkonce.sb2.*)}
-    *(.dyn${SBSS_NAME})
+    ${RELOCATING+*(.dyn${SBSS_NAME})}
     *(.${SBSS_NAME}${RELOCATING+ .${SBSS_NAME}.* .gnu.linkonce.sb.*})
-    *(.scommon)
+    ${RELOCATING+*(.scommon)}
     ${RELOCATING+${SBSS_END_SYMBOLS}}
   }"
   SBSS2=".${SBSS_NAME}2        ${RELOCATING-0} : { *(.${SBSS_NAME}2${RELOCATING+ .${SBSS_NAME}2.* .gnu.linkonce.sb2.*}) }"
@@ -231,9 +231,9 @@ test "${LARGE_SECTIONS}" = "yes" && REL_LARGE="
 test "${LARGE_SECTIONS}" = "yes" && LARGE_BSS="
   .lbss ${RELOCATING-0} :
   {
-    *(.dynlbss)
+    ${RELOCATING+*(.dynlbss)}
     *(.lbss${RELOCATING+ .lbss.* .gnu.linkonce.lb.*})
-    *(LARGE_COMMON)
+    ${RELOCATING+*(LARGE_COMMON)}
   }"
 test "${LARGE_SECTIONS}" = "yes" && LARGE_SECTIONS="
   .lrodata ${RELOCATING-0} ${RELOCATING+ALIGN(${MAXPAGESIZE}) + (. & (${MAXPAGESIZE} - 1))} :
@@ -245,12 +245,6 @@ test "${LARGE_SECTIONS}" = "yes" && LARGE_SECTIONS="
     *(.ldata${RELOCATING+ .ldata.* .gnu.linkonce.l.*})
     ${RELOCATING+. = ALIGN(. != 0 ? ${ALIGNMENT} : 1);}
   }"
-PREINIT_ARRAY=".preinit_array   ${RELOCATING-0} :
-  {
-    ${RELOCATING+${CREATE_SHLIB-PROVIDE_HIDDEN (${USER_LABEL_PREFIX}__preinit_array_start = .);}}
-    KEEP (*(.preinit_array))
-    ${RELOCATING+${CREATE_SHLIB-PROVIDE_HIDDEN (${USER_LABEL_PREFIX}__preinit_array_end = .);}}
-  }"
 if test "${ENABLE_INITFINI_ARRAY}" = "yes"; then
   SORT_INIT_ARRAY="KEEP (*(SORT_BY_INIT_PRIORITY(.init_array.*) SORT_BY_INIT_PRIORITY(.ctors.*)))"
   SORT_FINI_ARRAY="KEEP (*(SORT_BY_INIT_PRIORITY(.fini_array.*) SORT_BY_INIT_PRIORITY(.dtors.*)))"
@@ -262,19 +256,25 @@ else
   CTORS_IN_INIT_ARRAY=
   DTORS_IN_FINI_ARRAY=
 fi
-INIT_ARRAY=".init_array   ${RELOCATING-0} :
+PREINIT_ARRAY=".preinit_array    :
   {
-    ${RELOCATING+${CREATE_SHLIB-PROVIDE_HIDDEN (${USER_LABEL_PREFIX}__init_array_start = .);}}
+    ${CREATE_SHLIB-PROVIDE_HIDDEN (${USER_LABEL_PREFIX}__preinit_array_start = .);}
+    KEEP (*(.preinit_array))
+    ${CREATE_SHLIB-PROVIDE_HIDDEN (${USER_LABEL_PREFIX}__preinit_array_end = .);}
+  }"
+INIT_ARRAY=".init_array    :
+  {
+    ${CREATE_SHLIB-PROVIDE_HIDDEN (${USER_LABEL_PREFIX}__init_array_start = .);}
     ${SORT_INIT_ARRAY}
     KEEP (*(.init_array ${CTORS_IN_INIT_ARRAY}))
-    ${RELOCATING+${CREATE_SHLIB-PROVIDE_HIDDEN (${USER_LABEL_PREFIX}__init_array_end = .);}}
+    ${CREATE_SHLIB-PROVIDE_HIDDEN (${USER_LABEL_PREFIX}__init_array_end = .);}
   }"
-FINI_ARRAY=".fini_array   ${RELOCATING-0} :
+FINI_ARRAY=".fini_array    :
   {
-    ${RELOCATING+${CREATE_SHLIB-PROVIDE_HIDDEN (${USER_LABEL_PREFIX}__fini_array_start = .);}}
+    ${CREATE_SHLIB-PROVIDE_HIDDEN (${USER_LABEL_PREFIX}__fini_array_start = .);}
     ${SORT_FINI_ARRAY}
     KEEP (*(.fini_array ${DTORS_IN_FINI_ARRAY}))
-    ${RELOCATING+${CREATE_SHLIB-PROVIDE_HIDDEN (${USER_LABEL_PREFIX}__fini_array_end = .);}}
+    ${CREATE_SHLIB-PROVIDE_HIDDEN (${USER_LABEL_PREFIX}__fini_array_end = .);}
   }"
 CTOR=".ctors        ${CONSTRUCTING-0} :
   {
@@ -327,7 +327,7 @@ SHLIB_TEXT_START_ADDR="SEGMENT_START(\"text-segment\", ${SHLIB_TEXT_START_ADDR:-
 if test -z "$TINY_READONLY_SECTION"; then
   case "$LD_FLAG" in
     *textonly*)
-      SEPARATE_TEXT=yes
+      SEPARATE_TEXT=" "
       TEXT_SEGMENT_ALIGN=". = ALIGN(${MAXPAGESIZE});"
       ;;
   esac
@@ -368,7 +368,7 @@ ${RELOCATING- /* For some reason, the Solaris linker makes bad executables
 
 SECTIONS
 {
-  /* Read-only sections, merged into text segment: */
+  ${RELOCATING+${SEPARATE_TEXT-/* Read-only sections, merged into text segment: */}}
   ${CREATE_SHLIB-${CREATE_PIE-${RELOCATING+PROVIDE (__executable_start = ${TEXT_START_ADDR}); . = ${TEXT_BASE_ADDRESS};}}}
   ${CREATE_SHLIB+${RELOCATING+. = ${SHLIB_TEXT_START_ADDR}${SIZEOF_HEADERS_CODE};}}
   ${CREATE_PIE+${RELOCATING+PROVIDE (__executable_start = ${SHLIB_TEXT_START_ADDR}); . = ${SHLIB_TEXT_START_ADDR}${SIZEOF_HEADERS_CODE};}}
@@ -546,11 +546,11 @@ SEGMENT_START(\"rodata-segment\", ${SHLIB_RODATA_ADDR}) + SIZEOF_HEADERS"
     SHLIB_RODATA_ADDR="SEGMENT_START(\"rodata-segment\", ${SHLIB_RODATA_ADDR})"
   fi
   cat <<EOF
-  /* Adjust the address for the rodata segment.  We want to adjust up to
+  ${RELOCATING+/* Adjust the address for the rodata segment.  We want to adjust up to
      the same address within the page on the next page up.  */
-  ${CREATE_SHLIB-${CREATE_PIE-${RELOCATING+. = ${RODATA_ADDR};}}}
-  ${CREATE_SHLIB+${RELOCATING+. = ${SHLIB_RODATA_ADDR};}}
-  ${CREATE_PIE+${RELOCATING+. = ${SHLIB_RODATA_ADDR};}}
+  ${CREATE_SHLIB-${CREATE_PIE-. = ${RODATA_ADDR};}}
+  ${CREATE_SHLIB+. = ${SHLIB_RODATA_ADDR};}
+  ${CREATE_PIE+. = ${SHLIB_RODATA_ADDR};}}
 EOF
   if test -n "${SEPARATE_CODE}"; then
     emit_early_ro
@@ -564,27 +564,25 @@ cat <<EOF
   ${CREATE_SHLIB-${SDATA2}}
   ${CREATE_SHLIB-${SBSS2}}
   ${OTHER_READONLY_SECTIONS}
-  .eh_frame_hdr : { *(.eh_frame_hdr) ${RELOCATING+*(.eh_frame_entry .eh_frame_entry.*)} }
-  .eh_frame     ${RELOCATING-0} : ONLY_IF_RO { KEEP (*(.eh_frame)) ${RELOCATING+*(.eh_frame.*)} }
-  .gcc_except_table ${RELOCATING-0} : ONLY_IF_RO { *(.gcc_except_table
-  .gcc_except_table.*) }
+  .eh_frame_hdr : { *(.eh_frame_hdr)${RELOCATING+ *(.eh_frame_entry .eh_frame_entry.*)} }
+  .eh_frame     ${RELOCATING-0} : ONLY_IF_RO { KEEP (*(.eh_frame))${RELOCATING+ *(.eh_frame.*)} }
+  .gcc_except_table ${RELOCATING-0} : ONLY_IF_RO { *(.gcc_except_table${RELOCATING+ .gcc_except_table.*}) }
   .gnu_extab ${RELOCATING-0} : ONLY_IF_RO { *(.gnu_extab*) }
   /* These sections are generated by the Sun/Oracle C++ compiler.  */
-  .exception_ranges ${RELOCATING-0} : ONLY_IF_RO { *(.exception_ranges
-  .exception_ranges*) }
+  .exception_ranges ${RELOCATING-0} : ONLY_IF_RO { *(.exception_ranges${RELOCATING+*}) }
   ${TEXT_PLT+${PLT_NEXT_DATA+${PLT} ${OTHER_PLT_SECTIONS}}}
 
-  /* Adjust the address for the data segment.  We want to adjust up to
-     the same address within the page on the next page up.  */
+  ${RELOCATING+/* 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+. = ${DATA_ADDR-${DATA_SEGMENT_ALIGN}};}}}
-  ${CREATE_SHLIB+${RELOCATING+. = ${SHLIB_DATA_ADDR-${DATA_SEGMENT_ALIGN}};}}
-  ${CREATE_PIE+${RELOCATING+. = ${SHLIB_DATA_ADDR-${DATA_SEGMENT_ALIGN}};}}
+  ${CREATE_SHLIB+. = ${SHLIB_DATA_ADDR-${DATA_SEGMENT_ALIGN}};}
+  ${CREATE_PIE+. = ${SHLIB_DATA_ADDR-${DATA_SEGMENT_ALIGN}};}
 
   /* Exception handling  */
-  .eh_frame     ${RELOCATING-0} : ONLY_IF_RW { KEEP (*(.eh_frame)) ${RELOCATING+*(.eh_frame.*)} }
+  .eh_frame     ${RELOCATING-0} : ONLY_IF_RW { KEEP (*(.eh_frame))${RELOCATING+ *(.eh_frame.*)} }
   .gnu_extab    ${RELOCATING-0} : ONLY_IF_RW { *(.gnu_extab) }
-  .gcc_except_table ${RELOCATING-0} : ONLY_IF_RW { *(.gcc_except_table .gcc_except_table.*) }
-  .exception_ranges ${RELOCATING-0} : ONLY_IF_RW { *(.exception_ranges .exception_ranges*) }
+  .gcc_except_table ${RELOCATING-0} : ONLY_IF_RW { *(.gcc_except_table${RELOCATING+ .gcc_except_table.*}) }
+  .exception_ranges ${RELOCATING-0} : ONLY_IF_RW { *(.exception_ranges${RELOCATING+*}) }
 
   /* Thread Local Storage sections  */
   .tdata	${RELOCATING-0} :
@@ -647,13 +645,13 @@ cat <<EOF
   {
    ${RELOCATING+*(.dynbss)}
    *(.${BSS_NAME}${RELOCATING+ .${BSS_NAME}.* .gnu.linkonce.b.*})
-   *(COMMON)
+   ${RELOCATING+*(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.
-      FIXME: Why do we need it? When there is no .bss section, we don't
+      FIXME: Why do we need it? When there is no .bss section, we do not
       pad the .data section.  */
-   ${RELOCATING+. = ALIGN(. != 0 ? ${ALIGNMENT} : 1);}
+   . = ALIGN(. != 0 ? ${ALIGNMENT} : 1);}
   }
   ${OTHER_BSS_SECTIONS}
   ${LARGE_BSS_AFTER_BSS+${LARGE_BSS}}
@@ -666,8 +664,8 @@ SHLIB_LARGE_DATA_ADDR=". = SEGMENT_START(\"ldata-segment\", ${SHLIB_LARGE_DATA_A
 
 cat <<EOF
   ${RELOCATING+${CREATE_SHLIB-${CREATE_PIE-${LARGE_DATA_ADDR}}}}
-  ${RELOCATING+${CREATE_SHLIB+${SHLIB_LARGE_DATA_ADDR}}}
-  ${RELOCATING+${CREATE_PIE+${SHLIB_LARGE_DATA_ADDR}}}
+  ${CREATE_SHLIB+${SHLIB_LARGE_DATA_ADDR}}
+  ${CREATE_PIE+${SHLIB_LARGE_DATA_ADDR}}
   ${LARGE_SECTIONS}
   ${LARGE_BSS_AFTER_BSS-${LARGE_BSS}}
   ${RELOCATING+. = ALIGN(${ALIGNMENT});}
@@ -692,7 +690,7 @@ cat <<EOF
 
   .comment       0 : { *(.comment) }
 
-  .gnu.build.attributes : { *(.gnu.build.attributes .gnu.build.attributes.*) }
+  .gnu.build.attributes : { *(.gnu.build.attributes${RELOCATING+ .gnu.build.attributes.*}) }
 
 EOF