ld: don't generate base relocations in PE output for absolute symbols

[deliverable/binutils-gdb.git] / ld / emulparams / elf32bmipn32-defs.sh

diff --git a/ld/emulparams/elf32bmipn32-defs.sh b/ld/emulparams/elf32bmipn32-defs.sh
index 790eecf6f8de6d819a66c0da98b28e1d4b615b00..44f817b0cf73bace21f5d8540468031bb12140dd 100644 (file)
--- a/ld/emulparams/elf32bmipn32-defs.sh
+++ b/ld/emulparams/elf32bmipn32-defs.sh
@@ -10,11 +10,14 @@ OUTPUT_FORMAT="elf32-bigmips"
 BIG_OUTPUT_FORMAT="elf32-bigmips"
 LITTLE_OUTPUT_FORMAT="elf32-littlemips"
 
-TEMPLATE_NAME=elf32
+TEMPLATE_NAME=elf
+EXTRA_EM_FILE=mipself
 
-case "$EMULATION_NAME" in
-elf32*n32*) ELFSIZE=32 ;;
-elf64*) ELFSIZE=64 ;;
+# Note: use "x$var" not x"$var" in case directive in order to work around bug in bash 4.2
+case "x$EMULATION_NAME" in
+xelf32*n32*) ELFSIZE=32 ;;
+xelf64*) ELFSIZE=64 ;;
+x) ;;
 *) echo $0: unhandled emulation $EMULATION_NAME >&2; exit 1 ;;
 esac
 
@@ -30,15 +33,43 @@ fi
 LIBPATH_SUFFIX=$ELFSIZE
 
 GENERATE_SHLIB_SCRIPT=yes
+GENERATE_PIE_SCRIPT=yes
 
 TEXT_START_ADDR=0x10000000
-MAXPAGESIZE=0x100000
+MAXPAGESIZE="CONSTANT (MAXPAGESIZE)"
 ENTRY=__start
 
-# GOT-related settings.  
-OTHER_GOT_SYMBOLS='
-  _gp = ALIGN(16) + 0x7ff0;
-'
+# Unlike most targets, the MIPS backend puts all dynamic relocations
+# in a single dynobj section, which it also calls ".rel.dyn".  It does
+# this so that it can easily sort all dynamic relocations before the
+# output section has been populated.
+OTHER_GOT_RELOC_SECTIONS="
+  .rel.dyn      ${RELOCATING-0} : { *(.rel.dyn) }
+"
+# GOT-related settings.
+# If the output has a GOT section, there must be exactly 0x7ff0 bytes
+# between .got and _gp.
+OTHER_GOT_SYMBOLS='HIDDEN (_gp = ALIGN (16) + 0x7ff0);'
+
+# .got.plt is only used for the PLT psABI extension.  It should not be
+# included in the .sdata block with .got, as there is no need to access
+# the section from _gp.  Note that the traditional:
+#
+#      . = .
+#      _gp = ALIGN (16) + 0x7ff0;
+#      .got : { *(.got.plt) *(.got) }
+#
+# would set _gp to the wrong value; _gp - 0x7ff0 must point to the start
+# of *(.got).
+GOT=".got          ${RELOCATING-0} : { *(.got) }"
+unset OTHER_READWRITE_SECTIONS
+unset OTHER_RELRO_SECTIONS
+if test -n "$RELRO_NOW"; then
+  OTHER_RELRO_SECTIONS=".got.plt      ${RELOCATING-0} : { *(.got.plt) }"
+else
+  OTHER_READWRITE_SECTIONS=".got.plt      ${RELOCATING-0} : { *(.got.plt) }"
+fi
+
 OTHER_SDATA_SECTIONS="
   .lit8         ${RELOCATING-0} : { *(.lit8) }
   .lit4         ${RELOCATING-0} : { *(.lit4) }
@@ -46,32 +77,20 @@ OTHER_SDATA_SECTIONS="
 "
 
 # Magic symbols.
-TEXT_START_SYMBOLS='_ftext = . ;'
-DATA_START_SYMBOLS='_fdata = . ;'
-OTHER_BSS_SYMBOLS='_fbss = .;'
+TEXT_START_SYMBOLS="${CREATE_SHLIB+PROVIDE (}_ftext = .${CREATE_SHLIB+)};"
+DATA_START_SYMBOLS="${CREATE_SHLIB+PROVIDE (}_fdata = .${CREATE_SHLIB+)};"
+OTHER_BSS_SYMBOLS="${CREATE_SHLIB+PROVIDE (}_fbss = .${CREATE_SHLIB+)};"
+
+INITIAL_READONLY_SECTIONS=
+if test -z "${CREATE_SHLIB}"; then
+  INITIAL_READONLY_SECTIONS=".interp       ${RELOCATING-0} : { *(.interp) }"
+fi
+INITIAL_READONLY_SECTIONS="${INITIAL_READONLY_SECTIONS}
+  .MIPS.abiflags      ${RELOCATING-0} : { *(.MIPS.abiflags) }
+  .MIPS.xhash      ${RELOCATING-0} : { *(.MIPS.xhash) }
+  .reginfo      ${RELOCATING-0} : { *(.reginfo) }"
+# Discard any .MIPS.content* or .MIPS.events* sections.  The linker
+# doesn't know how to adjust them.
+OTHER_SECTIONS="/DISCARD/ : { *(.MIPS.content*) *(.MIPS.events*) }"
 
-OTHER_SECTIONS="
-  .MIPS.events.text ${RELOCATING-0} :
-    {
-       *(.MIPS.events.text${RELOCATING+ .MIPS.events.gnu.linkonce.t*})
-    }
-  .MIPS.content.text ${RELOCATING-0} : 
-    {
-       *(.MIPS.content.text${RELOCATING+ .MIPS.content.gnu.linkonce.t*})
-    }
-  .MIPS.events.data ${RELOCATING-0} :
-    {
-       *(.MIPS.events.data${RELOCATING+ .MIPS.events.gnu.linkonce.d*})
-    }
-  .MIPS.content.data ${RELOCATING-0} :
-    {
-       *(.MIPS.content.data${RELOCATING+ .MIPS.content.gnu.linkonce.d*})
-    }
-  .MIPS.events.rodata ${RELOCATING-0} :
-    {
-       *(.MIPS.events.rodata${RELOCATING+ .MIPS.events.gnu.linkonce.r*})
-    }
-  .MIPS.content.rodata ${RELOCATING-0} :
-    {
-       *(.MIPS.content.rodata${RELOCATING+ .MIPS.content.gnu.linkonce.r*})
-    }"
+TEXT_DYNAMIC=