* pe-dll.c (autofilter_objectlist): Add startup objects

[binutils.git] / ld / genscripts.sh

diff --git a/ld/genscripts.sh b/ld/genscripts.sh
index d3ab768ae8f6d2bbe5a64ae30dfa0e46a4bc2a92..501a68c8b9a5b6bb53a26dfa0080be2a7f346a07 100755 (executable)
--- a/ld/genscripts.sh
+++ b/ld/genscripts.sh
@@ -84,6 +84,17 @@ LIB_SEARCH_DIRS=`echo ${LIB_PATH} | tr ':' ' ' | sed -e 's/\([^ ][^ ]*\)/SEARCH_
 # A .xs script is for generating a shared library with the --shared
 #   flag; it is only generated if $GENERATE_SHLIB_SCRIPT is set by the
 #   emulation parameters.
+# A .xc script is for linking with -z combreloc; it is only generated if
+#   $GENERATE_COMBRELOC_SCRIPT is set by the emulation parameters or
+#   $SCRIPT_NAME is "elf".
+# A .xsc script is for linking with --shared -z combreloc; it is generated
+#   if $GENERATE_COMBRELOC_SCRIPT is set by the emulation parameters or
+#   $SCRIPT_NAME is "elf" and $GENERATE_SHLIB_SCRIPT is set by the emulation
+#   parameters too.
+
+if [ "x$SCRIPT_NAME" = "xelf" ]; then
+  GENERATE_COMBRELOC_SCRIPT=yes
+fi
 
 SEGMENT_SIZE=${SEGMENT_SIZE-${TARGET_PAGE_SIZE}}
 
@@ -99,45 +110,75 @@ DATA_ALIGNMENT_u="${DATA_ALIGNMENT_u-${DATA_ALIGNMENT_r}}"
 LD_FLAG=r
 DATA_ALIGNMENT=${DATA_ALIGNMENT_r}
 DEFAULT_DATA_ALIGNMENT="ALIGN(${SEGMENT_SIZE})"
-( . ${srcdir}/emulparams/${EMULATION_NAME}.sh
+( echo "/* Script for ld -r: link without relocation */"
+  . ${srcdir}/emulparams/${EMULATION_NAME}.sh
   . ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
-) | sed -e '/^ *$/d' > ldscripts/${EMULATION_NAME}.xr
+) | sed -e '/^ *$/d;s/[        ]*$//' > ldscripts/${EMULATION_NAME}.xr
 
 LD_FLAG=u
 DATA_ALIGNMENT=${DATA_ALIGNMENT_u}
 CONSTRUCTING=" "
-( . ${srcdir}/emulparams/${EMULATION_NAME}.sh
+( echo "/* Script for ld -Ur: link w/out relocation, do create constructors */"
+  . ${srcdir}/emulparams/${EMULATION_NAME}.sh
   . ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
-) | sed -e '/^ *$/d' > ldscripts/${EMULATION_NAME}.xu
+) | sed -e '/^ *$/d;s/[        ]*$//' > ldscripts/${EMULATION_NAME}.xu
 
 LD_FLAG=
 DATA_ALIGNMENT=${DATA_ALIGNMENT_}
 RELOCATING=" "
-( . ${srcdir}/emulparams/${EMULATION_NAME}.sh
+( echo "/* Default linker script, for normal executables */"
+  . ${srcdir}/emulparams/${EMULATION_NAME}.sh
   . ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
-) | sed -e '/^ *$/d' > ldscripts/${EMULATION_NAME}.x
+) | sed -e '/^ *$/d;s/[        ]*$//' > ldscripts/${EMULATION_NAME}.x
 
 LD_FLAG=n
 DATA_ALIGNMENT=${DATA_ALIGNMENT_n}
 TEXT_START_ADDR=${NONPAGED_TEXT_START_ADDR-${TEXT_START_ADDR}}
-( . ${srcdir}/emulparams/${EMULATION_NAME}.sh
+( echo "/* Script for -n: mix text and data on same page */"
+  . ${srcdir}/emulparams/${EMULATION_NAME}.sh
   . ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
-) | sed -e '/^ *$/d' > ldscripts/${EMULATION_NAME}.xn
+) | sed -e '/^ *$/d;s/[        ]*$//' > ldscripts/${EMULATION_NAME}.xn
 
 LD_FLAG=N
 DATA_ALIGNMENT=${DATA_ALIGNMENT_N}
-( . ${srcdir}/emulparams/${EMULATION_NAME}.sh
+( echo "/* Script for -N: mix text and data on same page; don't align data */"
+  . ${srcdir}/emulparams/${EMULATION_NAME}.sh
   . ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
-) | sed -e '/^ *$/d' > ldscripts/${EMULATION_NAME}.xbn
+) | sed -e '/^ *$/d;s/[        ]*$//' > ldscripts/${EMULATION_NAME}.xbn
+
+if test -n "$GENERATE_COMBRELOC_SCRIPT"; then
+  DATA_ALIGNMENT=${DATA_ALIGNMENT_c-${DATA_ALIGNMENT_}}
+  LD_FLAG=c
+  COMBRELOC=ldscripts/${EMULATION_NAME}.xc.tmp
+  ( echo "/* Script for -z combreloc: combine and sort reloc sections */"
+    . ${srcdir}/emulparams/${EMULATION_NAME}.sh
+    . ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
+  ) | sed -e '/^ *$/d;s/[      ]*$//' > ldscripts/${EMULATION_NAME}.xc
+  rm -f ${COMBRELOC}
+  COMBRELOC=
+fi
 
 if test -n "$GENERATE_SHLIB_SCRIPT"; then
   LD_FLAG=shared
   DATA_ALIGNMENT=${DATA_ALIGNMENT_s-${DATA_ALIGNMENT_}}
   CREATE_SHLIB=" "
   # Note that TEXT_START_ADDR is set to NONPAGED_TEXT_START_ADDR.
-  ( . ${srcdir}/emulparams/${EMULATION_NAME}.sh
+  (
+    echo "/* Script for ld --shared: link shared library */"
+    . ${srcdir}/emulparams/${EMULATION_NAME}.sh
     . ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
-  ) | sed -e '/^ *$/d' > ldscripts/${EMULATION_NAME}.xs
+  ) | sed -e '/^ *$/d;s/[      ]*$//' > ldscripts/${EMULATION_NAME}.xs
+  if test -n "$GENERATE_COMBRELOC_SCRIPT"; then
+    LD_FLAG=cshared
+    DATA_ALIGNMENT=${DATA_ALIGNMENT_sc-${DATA_ALIGNMENT}}
+    COMBRELOC=ldscripts/${EMULATION_NAME}.xc.tmp
+    ( echo "/* Script for --shared -z combreloc: shared library, combine & sort relocs */"
+      . ${srcdir}/emulparams/${EMULATION_NAME}.sh
+      . ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
+    ) | sed -e '/^ *$/d;s/[    ]*$//' > ldscripts/${EMULATION_NAME}.xsc
+    rm -f ${COMBRELOC}
+    COMBRELOC=
+  fi
 fi
 
 for i in $EMULATION_LIBPATH ; do