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, 28 insertions, 24 deletions

diff --git a/ld/scripttempl/elfarc.sc b/ld/scripttempl/elfarc.sc
index 802ef91c91f..c1a0b3c677d 100644
--- a/ld/scripttempl/elfarc.sc
+++ b/ld/scripttempl/elfarc.sc
@@ -84,7 +84,7 @@ if test -n "${COMMONPAGESIZE}"; then
 fi
 INTERP=".interp       ${RELOCATING-0} : { *(.interp) }"
 PLT=".plt          ${RELOCATING-0} : { *(.plt) }"
-test -z "$GOT" && GOT=".got          ${RELOCATING-0} : { *(.got.plt) *(.got) }"
+test -z "$GOT" && GOT=".got          ${RELOCATING-0} : {${RELOCATING+ *(.got.plt)} *(.got) }"
 DYNAMIC=".dynamic      ${RELOCATING-0} : { *(.dynamic) }"
 RODATA=".rodata       ${RELOCATING-0} : { *(.rodata${RELOCATING+ .rodata.* .gnu.linkonce.r.*}) }"
 STACKNOTE="/DISCARD/ : { *(.note.GNU-stack) }"
@@ -93,9 +93,9 @@ if test -z "${NO_SMALL_DATA}"; then
   {
     ${RELOCATING+PROVIDE (__sbss_start = .);}
     ${RELOCATING+PROVIDE (___sbss_start = .);}
-    *(.dynsbss)
+    ${RELOCATING+*(.dynsbss)}
     *(.sbss${RELOCATING+ .sbss.* .gnu.linkonce.sb.*})
-    *(.scommon)
+    ${RELOCATING+*(.scommon)}
     ${RELOCATING+PROVIDE (__sbss_end = .);}
     ${RELOCATING+PROVIDE (___sbss_end = .);}
   }"
@@ -265,8 +265,8 @@ cat <<EOF
   .jlitab       ${RELOCATING-0} :
   {
     ${RELOCATING+${JLI_START_TABLE}}
-    jlitab*.o(.jlitab*)
-    *(.jlitab*)
+    ${RELOCATING+jlitab*.o(.jlitab*)}
+    *(.jlitab${RELOCATING+*})
   } =${NOP-0}
   .text         ${RELOCATING-0} :
   {
@@ -295,7 +295,7 @@ cat <<EOF
   ${CREATE_SHLIB-${SBSS2}}
   ${OTHER_READONLY_SECTIONS}
   .eh_frame_hdr : { *(.eh_frame_hdr) }
-  .gcc_except_table ${RELOCATING-0} : ONLY_IF_RO { *(.gcc_except_table .gcc_except_table.*) }
+  .gcc_except_table ${RELOCATING-0} : ONLY_IF_RO { *(.gcc_except_table${RELOCATING+ .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.  */
@@ -304,7 +304,7 @@ cat <<EOF
   ${CREATE_PIE+${RELOCATING+. = ${SHLIB_DATA_ADDR-${DATA_SEGMENT_ALIGN}};}}
 
   /* Exception handling  */
-  .gcc_except_table ${RELOCATING-0} : ONLY_IF_RW { *(.gcc_except_table .gcc_except_table.*) }
+  .gcc_except_table ${RELOCATING-0} : ONLY_IF_RW { *(.gcc_except_table${RELOCATING+ .gcc_except_table.*}) }
 
   /* Ensure the __preinit_array_start label is properly aligned.  We
      could instead move the label definition inside the section, but
@@ -360,13 +360,13 @@ cat <<EOF
   ${BSS_PLT+${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});}
+    ${RELOCATING+*(.dynbss)}
+    *(.bss${RELOCATING+ .bss.* .gnu.linkonce.b.*})
+    ${RELOCATING+*(COMMON)
+    /* Align here to ensure that the .bss section occupies space up to
+       _end.  Align after .bss to ensure correct alignment even if the
+       .bss section disappears because there are no input sections.  */
+    . = ALIGN(${ALIGNMENT});}
   }
   ${OTHER_BSS_SECTIONS}
   ${RELOCATING+. = ALIGN(${ALIGNMENT});}
@@ -374,27 +374,31 @@ cat <<EOF
   ${RELOCATING+${OTHER_BSS_END_SYMBOLS}}
   ${RELOCATING+PROVIDE (end = .);}
   ${RELOCATING+${DATA_SEGMENT_END}}
+EOF
 
+test -n "${RELOCATING}" && cat <<EOF
   /* We want to be able to set a default stack / heap size in a dejagnu
      board description file, but override it for selected test cases.
      The options appear in the wrong order to do this with a single symbol -
      ldflags comes after flags injected with per-file stanzas, and thus
      the setting from ldflags prevails.  */
-  .heap ${RELOCATING-0} :
+  .heap :
   {
-	${RELOCATING+ __start_heap = . ; }
-	${RELOCATING+ . = . + (DEFINED(__HEAP_SIZE) ? __HEAP_SIZE : (DEFINED(__DEFAULT_HEAP_SIZE) ? __DEFAULT_HEAP_SIZE : 20k)) ; }
-	${RELOCATING+ __end_heap = . ; }
+	__start_heap = . ;
+	. = . + (DEFINED(__HEAP_SIZE) ? __HEAP_SIZE : (DEFINED(__DEFAULT_HEAP_SIZE) ? __DEFAULT_HEAP_SIZE : 20k)) ;
+	__end_heap = . ;
   }
 
-  ${RELOCATING+. = ALIGN(0x8);}
-  .stack ${RELOCATING-0} :
+  . = ALIGN(0x8);
+  .stack :
   {
-	${RELOCATING+ __stack = . ; }
-	${RELOCATING+ . = . + (DEFINED(__STACK_SIZE) ? __STACK_SIZE : (DEFINED(__DEFAULT_STACK_SIZE) ? __DEFAULT_STACK_SIZE : 64k)) ; }
-	${RELOCATING+ __stack_top = . ; }
+	__stack = . ;
+	. = . + (DEFINED(__STACK_SIZE) ? __STACK_SIZE : (DEFINED(__DEFAULT_STACK_SIZE) ? __DEFAULT_STACK_SIZE : 64k)) ;
+	__stack_top = . ;
   }
+EOF
 
+cat <<EOF
   /* Stabs debugging sections.  */
   .stab          0 : { *(.stab) }
   .stabstr       0 : { *(.stabstr) }
@@ -422,7 +426,7 @@ cat <<EOF
   .debug_pubnames 0 : { *(.debug_pubnames) }
 
   /* DWARF 2 */
-  .debug_info     0 : { *(.debug_info .gnu.linkonce.wi.*) }
+  .debug_info     0 : { *(.debug_info${RELOCATING+ .gnu.linkonce.wi.*}) }
   .debug_abbrev   0 : { *(.debug_abbrev) }
   .debug_line     0 : { *(.debug_line) }
   .debug_frame    0 : { *(.debug_frame) }