X-Git-Url: http://drtracing.org/?a=blobdiff_plain;f=ld%2Fgenscripts.sh;h=eb262e7ef6168c8a88fbae12ec47207d451e6ee3;hb=8f1732fc2a11dc2dbece0800d4ed6f011590d3ad;hp=d78ffce3c2360fb596a864c2986267e7a3e9baa0;hpb=88bba78dc42680f0a6634a6784f6f188b2af2849;p=deliverable%2Fbinutils-gdb.git

diff --git a/ld/genscripts.sh b/ld/genscripts.sh
index d78ffce3c2..eb262e7ef6 100755
--- a/ld/genscripts.sh
+++ b/ld/genscripts.sh
@@ -1,6 +1,6 @@
 #!/bin/sh
 # genscripts.sh - generate the ld-emulation-target specific files
-# Copyright 2007 Free Software Foundation, Inc.
+# Copyright (C) 2004-2016 Free Software Foundation, Inc.
 #
 # This file is part of the Gnu Linker.
 #
@@ -30,10 +30,10 @@
 #          default_emulation \
 #          native_lib_dirs \
 #          use_sysroot \
+#          enable_initfini_array \
 #          this_emulation \
 # optional:
-#          tool_dir \
-#          customizer_script
+#          tool_dir
 #
 # Sample usage:
 #
@@ -63,6 +63,7 @@
 #   sun3.xc      [used when the linker is invoked with "-z combreloc"]
 #   sun3.xsc     [used when the linker is invoked with "--shared"]
 #   sun3.xdc     [used when the linker is invoked with "-pie"]
+#   sun3.xa      [used when the linker is invoked with "--enable-auto-import"]
 #
 # It also produced the C source file:
 #
@@ -88,24 +89,13 @@ EMULATION_LIBPATH=$8
 NATIVE_LIB_DIRS=$9
 shift 9
 use_sysroot=$1
-EMULATION_NAME=$2
-TOOL_LIB=$3
-CUSTOMIZER_SCRIPT=$4
-
-# Can't use ${TOOL_LIB:-$target_alias} here due to an Ultrix shell bug.
-if [ "x${TOOL_LIB}" = "x" ] ; then
-  tool_lib=${exec_prefix}/${target_alias}/lib
-else
-  tool_lib=${exec_prefix}/${TOOL_LIB}/lib
-fi
-
-if [ "x${CUSTOMIZER_SCRIPT}" = "x" ] ; then
-  CUSTOMIZER_SCRIPT=${EMULATION_NAME}
-fi
-CUSTOMIZER_SCRIPT="${srcdir}/emulparams/${CUSTOMIZER_SCRIPT}.sh"
+ENABLE_INITFINI_ARRAY=$2
+EMULATION_NAME=$3
+TOOL_LIB=$4
 
 # Include the emulation-specific parameters:
-. ${CUSTOMIZER_SCRIPT} ${EMULATION_NAME}
+CUSTOMIZER_SCRIPT="${srcdir}/emulparams/${EMULATION_NAME}.sh"
+. ${CUSTOMIZER_SCRIPT}
 
 if test -d ldscripts; then
   true
@@ -147,76 +137,97 @@ fi
 # If the emulparams file set LIBPATH_SUFFIX, prepend an extra copy of
 # the library path with the suffix applied.
 
-if [ "x${LIB_PATH}" = "x" ] && [ "x${USE_LIBPATH}" = xyes ] ; then
-  LIB_PATH2=
+# Paths with LIBPATH_SUFFIX
+lib_path1=
+# Paths without LIBPATH_SUFFIX
+lib_path2=
+if [ "${LIB_PATH}" != ":" ] ; then
+  lib_path2=${LIB_PATH}
+fi
 
-  libs=${NATIVE_LIB_DIRS}
-  if [ "x${use_sysroot}" != "xyes" ] ; then
-    case " ${libs} " in
-      *" ${libdir} "*) ;;
-      *) libs="${libdir} ${libs}" ;;
-    esac
-    case " ${libs} " in
-      *" ${tool_lib} "*) ;;
-      *) libs="${tool_lib} ${libs}" ;;
-    esac
+# Add args to lib_path1 and lib_path2, discarding any duplicates
+append_to_lib_path()
+{
+  if [ $# != 0 ]; then
+    for lib in "$@"; do
+      # The "=" is harmless if we aren't using a sysroot, but also needless.
+      if [ "x${use_sysroot}" = "xyes" ] ; then
+	lib="=${lib}"
+      fi
+      skip_lib=no
+      if test -n "${LIBPATH_SUFFIX}"; then
+	case "${lib}" in
+	  *${LIBPATH_SUFFIX})
+	    case :${lib_path1}: in
+	      *:${lib}:*) ;;
+	      ::) lib_path1=${lib} ;;
+	      *) lib_path1=${lib_path1}:${lib} ;;
+	    esac ;;
+	  *)
+	    if test -n "${LIBPATH_SUFFIX_SKIP}"; then
+	      case "${lib}" in
+		*${LIBPATH_SUFFIX_SKIP}) skip_lib=yes ;;
+	      esac
+	    fi
+	    if test "${skip_lib}" = "no"; then
+	      case :${lib_path1}: in
+		*:${lib}${LIBPATH_SUFFIX}:*) ;;
+		::) lib_path1=${lib}${LIBPATH_SUFFIX} ;;
+	        *) lib_path1=${lib_path1}:${lib}${LIBPATH_SUFFIX} ;;
+	      esac
+	    fi ;;
+	esac
+      fi
+      if test "${skip_lib}" = "no"; then
+	case :${lib_path1}:${lib_path2}: in
+	  *:${lib}:*) ;;
+	  *::) lib_path2=${lib} ;;
+	  *) lib_path2=${lib_path2}:${lib} ;;
+	esac
+      fi
+    done
   fi
-
-  for lib in ${libs}; do
-    # The "=" is harmless if we aren't using a sysroot, but also needless.
-    if [ "x${use_sysroot}" = "xyes" ] ; then
-      lib="=${lib}"
+}
+
+# Always search $(tooldir)/lib, aka /usr/local/TARGET/lib when native
+# except when LIBPATH=":".
+if [ "${LIB_PATH}" != ":" ] ; then
+  libs=
+  if [ "x${TOOL_LIB}" = "x" ] ; then
+    if [ "x${NATIVE}" = "xyes" ] ; then
+      libs="${exec_prefix}/${target_alias}/lib"
     fi
-    addsuffix=
-    case "${LIBPATH_SUFFIX}:${lib}" in
-      :*) ;;
-      *:*${LIBPATH_SUFFIX}) ;;
-      *) addsuffix=yes ;;
+  else
+    # For multilib'ed targets, ensure both ${target_alias}/lib${LIBPATH_SUFFIX}
+    # and ${TOOL_LIB}/lib${LIBPATH_SUFFIX} are in the default search path,
+    # because 64bit libraries may be in both places, depending on
+    # cross-development setup method (e.g.: /usr/s390x-linux/lib64
+    # vs. /usr/s390-linux/lib64)
+    case "${NATIVE}:${LIBPATH_SUFFIX}:${TOOL_LIB}" in
+      :* | *::* | *:*:*${LIBPATH_SUFFIX}) ;;
+      *) libs="${exec_prefix}/${target_alias}/lib${LIBPATH_SUFFIX}" ;;
     esac
-    if test -n "$addsuffix"; then
-      case :${LIB_PATH}: in
-	*:${lib}${LIBPATH_SUFFIX}:*) ;;
-	::) LIB_PATH=${lib}${LIBPATH_SUFFIX} ;;
-	*) LIB_PATH=${LIB_PATH}:${lib}${LIBPATH_SUFFIX} ;;
-      esac
-      case :${LIB_PATH}:${LIB_PATH2}: in
-	*:${lib}:*) ;;
-	*::) LIB_PATH2=${lib} ;;
-	*) LIB_PATH2=${LIB_PATH2}:${lib} ;;
-      esac
-    else
-      case :${LIB_PATH2}: in
-	*:${lib}:*) ;;
-	::) LIB_PATH2=${lib} ;;
-	*) LIB_PATH2=${LIB_PATH2}:${lib} ;;
-      esac
-    fi
-  done
-
-  case :${LIB_PATH}:${LIB_PATH2}: in
-    *:: | ::*) LIB_PATH=${LIB_PATH}${LIB_PATH2} ;;
-    *) LIB_PATH=${LIB_PATH}:${LIB_PATH2} ;;
-  esac
+    libs="${exec_prefix}/${TOOL_LIB}/lib ${libs}"
+  fi
+  append_to_lib_path ${libs}
 fi
 
-# Always search $(tooldir)/lib, aka /usr/local/TARGET/lib, except for
-# sysrooted configurations and when LIBPATH=":".
-if [ "x${use_sysroot}" != "xyes" ] ; then
-  case :${LIB_PATH}: in
-  ::: | *:${tool_lib}:*) ;;
-  ::) LIB_PATH=${tool_lib} ;;
-  *) LIB_PATH=${tool_lib}:${LIB_PATH} ;;
-  esac
-  # For multilib targets, search both $tool_lib dirs
-  if [ "x${LIBPATH_SUFFIX}" != "x" ] ; then
-    case :${LIB_PATH}: in
-      ::: | *:${tool_lib}${LIBPATH_SUFFIX}:*) ;;
-      ::) LIB_PATH=${tool_lib}${LIBPATH_SUFFIX} ;;
-      *) LIB_PATH=${tool_lib}${LIBPATH_SUFFIX}:${LIB_PATH} ;;
+if [ "x${LIB_PATH}" = "x" ] && [ "x${USE_LIBPATH}" = xyes ] ; then
+  libs=${NATIVE_LIB_DIRS}
+  if [ "x${NATIVE}" = "xyes" ] ; then
+    case " ${libs} " in
+      *" ${libdir} "*) ;;
+      *) libs="${libdir} ${libs}" ;;
     esac
   fi
+  append_to_lib_path ${libs}
 fi
 
+case :${lib_path1}:${lib_path2}: in
+  *:: | ::*) LIB_PATH=${lib_path1}${lib_path2} ;;
+  *) LIB_PATH=${lib_path1}:${lib_path2} ;;
+esac
+
 LIB_SEARCH_DIRS=`echo ${LIB_PATH} | sed -e 's/:/ /g' -e 's/\([^ ][^ ]*\)/SEARCH_DIR(\\"\1\\");/g'`
 
 # We need it for testsuite.
@@ -267,7 +278,7 @@ LD_FLAG=r
 DATA_ALIGNMENT=${DATA_ALIGNMENT_r}
 DEFAULT_DATA_ALIGNMENT="ALIGN(${SEGMENT_SIZE})"
 ( echo "/* Script for ld -r: link without relocation */"
-  . ${CUSTOMIZER_SCRIPT} ${EMULATION_NAME}
+  . ${CUSTOMIZER_SCRIPT}
   . ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
 ) | sed -e '/^ *$/d;s/[ 	]*$//' > ldscripts/${EMULATION_NAME}.xr
 
@@ -275,7 +286,7 @@ LD_FLAG=u
 DATA_ALIGNMENT=${DATA_ALIGNMENT_u}
 CONSTRUCTING=" "
 ( echo "/* Script for ld -Ur: link w/out relocation, do create constructors */"
-  . ${CUSTOMIZER_SCRIPT} ${EMULATION_NAME}
+  . ${CUSTOMIZER_SCRIPT}
   . ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
 ) | sed -e '/^ *$/d;s/[ 	]*$//' > ldscripts/${EMULATION_NAME}.xu
 
@@ -283,21 +294,21 @@ LD_FLAG=
 DATA_ALIGNMENT=${DATA_ALIGNMENT_}
 RELOCATING=" "
 ( echo "/* Default linker script, for normal executables */"
-  . ${CUSTOMIZER_SCRIPT} ${EMULATION_NAME}
+  . ${CUSTOMIZER_SCRIPT}
   . ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
 ) | sed -e '/^ *$/d;s/[ 	]*$//' > ldscripts/${EMULATION_NAME}.x
 
 LD_FLAG=n
 DATA_ALIGNMENT=${DATA_ALIGNMENT_n}
 ( echo "/* Script for -n: mix text and data on same page */"
-  . ${CUSTOMIZER_SCRIPT} ${EMULATION_NAME}
+  . ${CUSTOMIZER_SCRIPT}
   . ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
 ) | sed -e '/^ *$/d;s/[ 	]*$//' > ldscripts/${EMULATION_NAME}.xn
 
 LD_FLAG=N
 DATA_ALIGNMENT=${DATA_ALIGNMENT_N}
 ( echo "/* Script for -N: mix text and data on same page; don't align data */"
-  . ${CUSTOMIZER_SCRIPT} ${EMULATION_NAME}
+  . ${CUSTOMIZER_SCRIPT}
   . ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
 ) | sed -e '/^ *$/d;s/[ 	]*$//' > ldscripts/${EMULATION_NAME}.xbn
 
@@ -306,7 +317,7 @@ if test -n "$GENERATE_COMBRELOC_SCRIPT"; then
   LD_FLAG=c
   COMBRELOC=ldscripts/${EMULATION_NAME}.xc.tmp
   ( echo "/* Script for -z combreloc: combine and sort reloc sections */"
-    . ${CUSTOMIZER_SCRIPT} ${EMULATION_NAME}
+    . ${CUSTOMIZER_SCRIPT}
     . ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
   ) | sed -e '/^ *$/d;s/[ 	]*$//' > ldscripts/${EMULATION_NAME}.xc
   rm -f ${COMBRELOC}
@@ -314,7 +325,7 @@ if test -n "$GENERATE_COMBRELOC_SCRIPT"; then
   RELRO_NOW=" "
   COMBRELOC=ldscripts/${EMULATION_NAME}.xw.tmp
   ( echo "/* Script for -z combreloc -z now -z relro: combine and sort reloc sections */"
-    . ${CUSTOMIZER_SCRIPT} ${EMULATION_NAME}
+    . ${CUSTOMIZER_SCRIPT}
     . ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
   ) | sed -e '/^ *$/d;s/[ 	]*$//' > ldscripts/${EMULATION_NAME}.xw
   rm -f ${COMBRELOC}
@@ -328,7 +339,7 @@ if test -n "$GENERATE_SHLIB_SCRIPT"; then
   CREATE_SHLIB=" "
   (
     echo "/* Script for ld --shared: link shared library */"
-    . ${CUSTOMIZER_SCRIPT} ${EMULATION_NAME}
+    . ${CUSTOMIZER_SCRIPT}
     . ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
   ) | sed -e '/^ *$/d;s/[ 	]*$//' > ldscripts/${EMULATION_NAME}.xs
   if test -n "$GENERATE_COMBRELOC_SCRIPT"; then
@@ -336,7 +347,7 @@ if test -n "$GENERATE_SHLIB_SCRIPT"; then
     DATA_ALIGNMENT=${DATA_ALIGNMENT_sc-${DATA_ALIGNMENT}}
     COMBRELOC=ldscripts/${EMULATION_NAME}.xsc.tmp
     ( echo "/* Script for --shared -z combreloc: shared library, combine & sort relocs */"
-      . ${CUSTOMIZER_SCRIPT} ${EMULATION_NAME}
+      . ${CUSTOMIZER_SCRIPT}
       . ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
     ) | sed -e '/^ *$/d;s/[ 	]*$//' > ldscripts/${EMULATION_NAME}.xsc
     rm -f ${COMBRELOC}
@@ -344,7 +355,7 @@ if test -n "$GENERATE_SHLIB_SCRIPT"; then
     RELRO_NOW=" "
     COMBRELOC=ldscripts/${EMULATION_NAME}.xsw.tmp
     ( echo "/* Script for --shared -z combreloc -z now -z relro: shared library, combine & sort relocs */"
-      . ${CUSTOMIZER_SCRIPT} ${EMULATION_NAME}
+      . ${CUSTOMIZER_SCRIPT}
       . ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
     ) | sed -e '/^ *$/d;s/[ 	]*$//' > ldscripts/${EMULATION_NAME}.xsw
     rm -f ${COMBRELOC}
@@ -360,7 +371,7 @@ if test -n "$GENERATE_PIE_SCRIPT"; then
   CREATE_PIE=" "
   (
     echo "/* Script for ld -pie: link position independent executable */"
-    . ${CUSTOMIZER_SCRIPT} ${EMULATION_NAME}
+    . ${CUSTOMIZER_SCRIPT}
     . ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
   ) | sed -e '/^ *$/d;s/[ 	]*$//' > ldscripts/${EMULATION_NAME}.xd
   if test -n "$GENERATE_COMBRELOC_SCRIPT"; then
@@ -368,7 +379,7 @@ if test -n "$GENERATE_PIE_SCRIPT"; then
     DATA_ALIGNMENT=${DATA_ALIGNMENT_sc-${DATA_ALIGNMENT}}
     COMBRELOC=ldscripts/${EMULATION_NAME}.xdc.tmp
     ( echo "/* Script for -pie -z combreloc: position independent executable, combine & sort relocs */"
-      . ${CUSTOMIZER_SCRIPT} ${EMULATION_NAME}
+      . ${CUSTOMIZER_SCRIPT}
       . ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
     ) | sed -e '/^ *$/d;s/[ 	]*$//' > ldscripts/${EMULATION_NAME}.xdc
     rm -f ${COMBRELOC}
@@ -376,7 +387,7 @@ if test -n "$GENERATE_PIE_SCRIPT"; then
     RELRO_NOW=" "
     COMBRELOC=ldscripts/${EMULATION_NAME}.xdw.tmp
     ( echo "/* Script for -pie -z combreloc -z now -z relro: position independent executable, combine & sort relocs */"
-      . ${CUSTOMIZER_SCRIPT} ${EMULATION_NAME}
+      . ${CUSTOMIZER_SCRIPT}
       . ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
     ) | sed -e '/^ *$/d;s/[ 	]*$//' > ldscripts/${EMULATION_NAME}.xdw
     rm -f ${COMBRELOC}
@@ -386,24 +397,31 @@ if test -n "$GENERATE_PIE_SCRIPT"; then
   unset CREATE_PIE
 fi
 
-case " $EMULATION_LIBPATH " in
-    *" ${EMULATION_NAME} "*) COMPILE_IN=true;;
+if test -n "$GENERATE_AUTO_IMPORT_SCRIPT"; then
+  LD_FLAG=auto_import
+  DATA_ALIGNMENT=${DATA_ALIGNMENT_}
+  (
+    echo "/* Script for ld --enable-auto-import: Like the default script except read only data is placed into .data  */"
+    . ${CUSTOMIZER_SCRIPT}
+    . ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
+  ) | sed -e '/^ *$/d;s/[ 	]*$//' > ldscripts/${EMULATION_NAME}.xa
+fi
+
+case "$COMPILE_IN: $EMULATION_LIBPATH " in
+    :*" ${EMULATION_NAME} "*) COMPILE_IN=yes;;
 esac
 
-if test -n "${BASH+set}"; then
-  source_em()
-  {
-    local current_script="$em_script"
-    em_script=$1
-    . $em_script
-    em_script=$current_script
-  }
-  fragment()
-  {
-    local lineno=$[${BASH_LINENO[0]} + 1]
-    echo >> e${EMULATION_NAME}.c "#line $lineno \"$em_script\""
-    cat >> e${EMULATION_NAME}.c
-  }
+# PR ld/5652:
+# Determine if the shell has support for the variable BASH_LINENO.
+# When it is the case, it is only available inside functions.
+has_lineno()
+{
+  test "x$BASH_LINENO" != "x"
+}
+
+# Enable accruate error source in the compiler error messages, if possible.
+if has_lineno; then
+  . ${srcdir}/genscrba.sh
 else
   source_em()
   {