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-rw-r--r--ld/emultempl/elf32.em149
-rwxr-xr-xld/genscripts.sh150
2 files changed, 291 insertions, 8 deletions
diff --git a/ld/emultempl/elf32.em b/ld/emultempl/elf32.em
index 1ad9d6b..5160e24 100644
--- a/ld/emultempl/elf32.em
+++ b/ld/emultempl/elf32.em
@@ -2376,17 +2376,41 @@ echo ' && link_info.combreloc' >> e${EMULATION_NAME}.c
echo ' && link_info.relro' >> e${EMULATION_NAME}.c
echo ' && (link_info.flags & DF_BIND_NOW)) return' >> e${EMULATION_NAME}.c
sed $sc ldscripts/${EMULATION_NAME}.xdw >> e${EMULATION_NAME}.c
+if test -n "$GENERATE_RELRO_SCRIPT" ; then
+echo ' ; else if (bfd_link_pie (&link_info)' >> e${EMULATION_NAME}.c
+echo ' && link_info.combreloc' >> e${EMULATION_NAME}.c
+echo ' && link_info.separate_code' >> e${EMULATION_NAME}.c
+echo ' && link_info.relro) return' >> e${EMULATION_NAME}.c
+sed $sc ldscripts/${EMULATION_NAME}.xdceo >> e${EMULATION_NAME}.c
+fi
echo ' ; else if (bfd_link_pie (&link_info)' >> e${EMULATION_NAME}.c
echo ' && link_info.separate_code' >> e${EMULATION_NAME}.c
echo ' && link_info.combreloc) return' >> e${EMULATION_NAME}.c
sed $sc ldscripts/${EMULATION_NAME}.xdce >> e${EMULATION_NAME}.c
+if test -n "$GENERATE_RELRO_SCRIPT" ; then
+echo ' ; else if (bfd_link_pie (&link_info)' >> e${EMULATION_NAME}.c
+echo ' && link_info.combreloc' >> e${EMULATION_NAME}.c
+echo ' && link_info.relro) return' >> e${EMULATION_NAME}.c
+sed $sc ldscripts/${EMULATION_NAME}.xdco >> e${EMULATION_NAME}.c
+fi
echo ' ; else if (bfd_link_pie (&link_info)' >> e${EMULATION_NAME}.c
echo ' && link_info.combreloc) return' >> e${EMULATION_NAME}.c
sed $sc ldscripts/${EMULATION_NAME}.xdc >> e${EMULATION_NAME}.c
+if test -n "$GENERATE_RELRO_SCRIPT" ; then
+echo ' ; else if (bfd_link_pie (&link_info)' >> e${EMULATION_NAME}.c
+echo ' && link_info.separate_code' >> e${EMULATION_NAME}.c
+echo ' && link_info.relro) return' >> e${EMULATION_NAME}.c
+sed $sc ldscripts/${EMULATION_NAME}.xdeo >> e${EMULATION_NAME}.c
+fi
fi
echo ' ; else if (bfd_link_pie (&link_info)' >> e${EMULATION_NAME}.c
echo ' && link_info.separate_code) return' >> e${EMULATION_NAME}.c
sed $sc ldscripts/${EMULATION_NAME}.xde >> e${EMULATION_NAME}.c
+if test -n "$GENERATE_RELRO_SCRIPT" ; then
+echo ' ; else if (bfd_link_pie (&link_info)' >> e${EMULATION_NAME}.c
+echo ' && link_info.relro) return' >> e${EMULATION_NAME}.c
+sed $sc ldscripts/${EMULATION_NAME}.xdo >> e${EMULATION_NAME}.c
+fi
echo ' ; else if (bfd_link_pie (&link_info)) return' >> e${EMULATION_NAME}.c
sed $sc ldscripts/${EMULATION_NAME}.xd >> e${EMULATION_NAME}.c
fi
@@ -2402,17 +2426,41 @@ echo ' && link_info.combreloc' >> e${EMULATION_NAME}.c
echo ' && link_info.relro' >> e${EMULATION_NAME}.c
echo ' && (link_info.flags & DF_BIND_NOW)) return' >> e${EMULATION_NAME}.c
sed $sc ldscripts/${EMULATION_NAME}.xsw >> e${EMULATION_NAME}.c
+if test -n "$GENERATE_RELRO_SCRIPT" ; then
+echo ' ; else if (bfd_link_dll (&link_info)' >> e${EMULATION_NAME}.c
+echo ' && link_info.combreloc' >> e${EMULATION_NAME}.c
+echo ' && link_info.separate_code' >> e${EMULATION_NAME}.c
+echo ' && link_info.relro) return' >> e${EMULATION_NAME}.c
+sed $sc ldscripts/${EMULATION_NAME}.xsceo >> e${EMULATION_NAME}.c
+fi
echo ' ; else if (bfd_link_dll (&link_info)' >> e${EMULATION_NAME}.c
echo ' && link_info.combreloc' >> e${EMULATION_NAME}.c
echo ' && link_info.separate_code) return' >> e${EMULATION_NAME}.c
sed $sc ldscripts/${EMULATION_NAME}.xsce >> e${EMULATION_NAME}.c
+if test -n "$GENERATE_RELRO_SCRIPT" ; then
+echo ' ; else if (bfd_link_dll (&link_info)' >> e${EMULATION_NAME}.c
+echo ' && link_info.combreloc' >> e${EMULATION_NAME}.c
+echo ' && link_info.relro) return' >> e${EMULATION_NAME}.c
+sed $sc ldscripts/${EMULATION_NAME}.xsco >> e${EMULATION_NAME}.c
+fi
echo ' ; else if (bfd_link_dll (&link_info)' >> e${EMULATION_NAME}.c
echo ' && link_info.combreloc) return' >> e${EMULATION_NAME}.c
sed $sc ldscripts/${EMULATION_NAME}.xsc >> e${EMULATION_NAME}.c
+if test -n "$GENERATE_RELRO_SCRIPT" ; then
+echo ' ; else if (bfd_link_dll (&link_info)' >> e${EMULATION_NAME}.c
+echo ' && link_info.separate_code' >> e${EMULATION_NAME}.c
+echo ' && link_info.relro) return' >> e${EMULATION_NAME}.c
+sed $sc ldscripts/${EMULATION_NAME}.xseo >> e${EMULATION_NAME}.c
+fi
fi
echo ' ; else if (bfd_link_dll (&link_info)' >> e${EMULATION_NAME}.c
echo ' && link_info.separate_code) return' >> e${EMULATION_NAME}.c
sed $sc ldscripts/${EMULATION_NAME}.xse >> e${EMULATION_NAME}.c
+if test -n "$GENERATE_RELRO_SCRIPT" ; then
+echo ' ; else if (bfd_link_dll (&link_info)' >> e${EMULATION_NAME}.c
+echo ' && link_info.relro) return' >> e${EMULATION_NAME}.c
+sed $sc ldscripts/${EMULATION_NAME}.xso >> e${EMULATION_NAME}.c
+fi
echo ' ; else if (bfd_link_dll (&link_info)) return' >> e${EMULATION_NAME}.c
sed $sc ldscripts/${EMULATION_NAME}.xs >> e${EMULATION_NAME}.c
fi
@@ -2425,14 +2473,34 @@ echo ' ; else if (link_info.combreloc' >> e${EMULATION_NAME}.c
echo ' && link_info.relro' >> e${EMULATION_NAME}.c
echo ' && (link_info.flags & DF_BIND_NOW)) return' >> e${EMULATION_NAME}.c
sed $sc ldscripts/${EMULATION_NAME}.xw >> e${EMULATION_NAME}.c
+if test -n "$GENERATE_RELRO_SCRIPT" ; then
+echo ' ; else if (link_info.combreloc' >> e${EMULATION_NAME}.c
+echo ' && link_info.separate_code' >> e${EMULATION_NAME}.c
+echo ' && link_info.relro) return' >> e${EMULATION_NAME}.c
+sed $sc ldscripts/${EMULATION_NAME}.xceo >> e${EMULATION_NAME}.c
+fi
echo ' ; else if (link_info.combreloc' >> e${EMULATION_NAME}.c
echo ' && link_info.separate_code) return' >> e${EMULATION_NAME}.c
sed $sc ldscripts/${EMULATION_NAME}.xce >> e${EMULATION_NAME}.c
+if test -n "$GENERATE_RELRO_SCRIPT" ; then
+echo ' ; else if (link_info.combreloc' >> e${EMULATION_NAME}.c
+echo ' && link_info.relro) return' >> e${EMULATION_NAME}.c
+sed $sc ldscripts/${EMULATION_NAME}.xco >> e${EMULATION_NAME}.c
+fi
echo ' ; else if (link_info.combreloc) return' >> e${EMULATION_NAME}.c
sed $sc ldscripts/${EMULATION_NAME}.xc >> e${EMULATION_NAME}.c
fi
-echo ' ; else if (link_info.separate_code) return' >> e${EMULATION_NAME}.c
+if test -n "$GENERATE_RELRO_SCRIPT" ; then
+echo ' ; else if (link_info.separate_code' >> e${EMULATION_NAME}.c
+echo ' && link_info.relro) return' >> e${EMULATION_NAME}.c
+sed $sc ldscripts/${EMULATION_NAME}.xeo >> e${EMULATION_NAME}.c
+fi
+echo ' ; else if (link_info.separate_code) return' >> e${EMULATION_NAME}.c
sed $sc ldscripts/${EMULATION_NAME}.xe >> e${EMULATION_NAME}.c
+if test -n "$GENERATE_RELRO_SCRIPT" ; then
+echo ' ; else if (link_info.relro) return' >> e${EMULATION_NAME}.c
+sed $sc ldscripts/${EMULATION_NAME}.xo >> e${EMULATION_NAME}.c
+fi
echo ' ; else return' >> e${EMULATION_NAME}.c
sed $sc ldscripts/${EMULATION_NAME}.x >> e${EMULATION_NAME}.c
echo '; }' >> e${EMULATION_NAME}.c
@@ -2471,6 +2539,21 @@ fragment <<EOF
else
return "ldscripts/${EMULATION_NAME}.xdw";
}
+EOF
+if test -n "$GENERATE_RELRO_SCRIPT" ; then
+fragment <<EOF
+ else if (bfd_link_pie (&link_info)
+ && link_info.combreloc
+ && link_info.relro)
+ {
+ if (link_info.separate_code)
+ return "ldscripts/${EMULATION_NAME}.xdceo";
+ else
+ return "ldscripts/${EMULATION_NAME}.xdco";
+ }
+EOF
+fi
+fragment <<EOF
else if (bfd_link_pie (&link_info)
&& link_info.combreloc)
{
@@ -2481,6 +2564,18 @@ fragment <<EOF
}
EOF
fi
+if test -n "$GENERATE_RELRO_SCRIPT" ; then
+fragment <<EOF
+ else if (bfd_link_pie (&link_info)
+ && link_info.relro)
+ {
+ if (link_info.separate_code)
+ return "ldscripts/${EMULATION_NAME}.xdeo";
+ else
+ return "ldscripts/${EMULATION_NAME}.xdo";
+ }
+EOF
+fi
fragment <<EOF
else if (bfd_link_pie (&link_info))
{
@@ -2502,6 +2597,21 @@ fragment <<EOF
else
return "ldscripts/${EMULATION_NAME}.xsw";
}
+EOF
+if test -n "$GENERATE_RELRO_SCRIPT" ; then
+fragment <<EOF
+ else if (bfd_link_dll (&link_info)
+ && link_info.combreloc
+ && link_info.relro)
+ {
+ if (link_info.separate_code)
+ return "ldscripts/${EMULATION_NAME}.xsceo";
+ else
+ return "ldscripts/${EMULATION_NAME}.xsco";
+ }
+EOF
+fi
+fragment <<EOF
else if (bfd_link_dll (&link_info) && link_info.combreloc)
{
if (link_info.separate_code)
@@ -2511,6 +2621,18 @@ fragment <<EOF
}
EOF
fi
+if test -n "$GENERATE_RELRO_SCRIPT" ; then
+fragment <<EOF
+ else if (bfd_link_dll (&link_info)
+ && link_info.relro)
+ {
+ if (link_info.separate_code)
+ return "ldscripts/${EMULATION_NAME}.xseo";
+ else
+ return "ldscripts/${EMULATION_NAME}.xso";
+ }
+EOF
+fi
fragment <<EOF
else if (bfd_link_dll (&link_info))
{
@@ -2531,6 +2653,20 @@ fragment <<EOF
else
return "ldscripts/${EMULATION_NAME}.xw";
}
+EOF
+if test -n "$GENERATE_RELRO_SCRIPT" ; then
+fragment <<EOF
+ else if (link_info.combreloc
+ && link_info.relro)
+ {
+ if (link_info.separate_code)
+ return "ldscripts/${EMULATION_NAME}.xceo";
+ else
+ return "ldscripts/${EMULATION_NAME}.xco";
+ }
+EOF
+fi
+fragment <<EOF
else if (link_info.combreloc)
{
if (link_info.separate_code)
@@ -2540,6 +2676,17 @@ fragment <<EOF
}
EOF
fi
+if test -n "$GENERATE_RELRO_SCRIPT" ; then
+fragment <<EOF
+ else if (link_info.relro)
+ {
+ if (link_info.separate_code)
+ return "ldscripts/${EMULATION_NAME}.xeo";
+ else
+ return "ldscripts/${EMULATION_NAME}.xo";
+ }
+EOF
+fi
fragment <<EOF
else
{
diff --git a/ld/genscripts.sh b/ld/genscripts.sh
index 370b222..6300a6a 100755
--- a/ld/genscripts.sh
+++ b/ld/genscripts.sh
@@ -59,11 +59,42 @@
# sun3.xn [used when the linker is invoked with "-n"]
# sun3.xr [used when the linker is invoked with "-r"]
# sun3.xu [used when the linker is invoked with "-Ur"]
-# and maybe:
-# 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"]
+#
+# depending on platform specific settings linker scripts with the
+# following suffixes might be generated as well:
+#
+# xdwe: -pie -z combreloc -z separate-code -z now
+# xdw: -pie -z combreloc -z relro -z now
+# xdceo: -pie -z combreloc -z separate-code -z relro
+# xdce: -pie -z combreloc -z separate-code
+# xdco: -pie -z combreloc -z relro
+# xdc: -pie -z combreloc
+# xdeo: -pie -z separate-code -z relro
+# xde: -pie -z separate-code
+# xdo: -pie -z relro
+# xd: -pie
+#
+# xswe: -shared -z combreloc -z separate-code -z now
+# xsw: -shared -z combreloc -z relro -z now
+# xsceo: -shared -z combreloc -z separate-code -z relro
+# xsce: -shared -z combreloc -z separate-code
+# xsco: -shared -z combreloc -z relro
+# xsc: -shared -z combreloc
+# xseo: -shared -z separate-code -z relro
+# xse: -shared -z separate-code
+# xso: -shared -z relro
+# xs: -shared
+#
+# xwe: -z combreloc -z separate-code -z now
+# xw: -z combreloc -z relro -z now
+# xceo: -z combreloc -z separate-code -z relro
+# xce: -z combreloc -z separate-code
+# xco: -z combreloc -z relro
+# xc: -z combreloc
+# xeo: -z separate-code -z relro
+# xe: -z separate-code
+# xo: -z relro
+#
#
# It also produced the C source file:
#
@@ -306,6 +337,20 @@ LD_FLAG=textonly
. ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
) | sed -e '/^ *$/d;s/[ ]*$//' > ldscripts/${EMULATION_NAME}.xe
+if test -n "$GENERATE_RELRO_SCRIPT"; then
+ LD_FLAG=
+ RELRO=" "
+ ( echo "/* Script for -z relo: generate normal executables with separate code segment */"
+ . ${CUSTOMIZER_SCRIPT}
+ . ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
+ ) | sed -e '/^ *$/d;s/[ ]*$//' > ldscripts/${EMULATION_NAME}.xo
+ LD_FLAG=textonly
+ ( echo "/* Script for -z separate-code -z relo: generate normal executables with separate code segment */"
+ . ${CUSTOMIZER_SCRIPT}
+ . ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
+ ) | sed -e '/^ *$/d;s/[ ]*$//' > ldscripts/${EMULATION_NAME}.xeo
+ unset RELRO
+fi
LD_FLAG=n
DATA_ALIGNMENT=${DATA_ALIGNMENT_n}
( echo "/* Script for -n: mix text and data on same page */"
@@ -353,6 +398,25 @@ if test -n "$GENERATE_COMBRELOC_SCRIPT"; then
rm -f ${COMBRELOC}
COMBRELOC=
unset RELRO_NOW
+ if test -n "$GENERATE_RELRO_SCRIPT"; then
+ LD_FLAG=c
+ RELRO=" "
+ COMBRELOC=ldscripts/${EMULATION_NAME}.xco.tmp
+ ( echo "/* Script for -z combreloc -z relro: combine and sort reloc sections */"
+ . ${CUSTOMIZER_SCRIPT}
+ . ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
+ ) | sed -e '/^ *$/d;s/[ ]*$//' > ldscripts/${EMULATION_NAME}.xco
+ rm -f ${COMBRELOC}
+ LD_FLAG=ctextonly
+ COMBRELOC=ldscripts/${EMULATION_NAME}.xceo.tmp
+ ( echo "/* Script for -z combreloc -z separate-code -z relro: combine and sort reloc sections */"
+ . ${CUSTOMIZER_SCRIPT}
+ . ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
+ ) | sed -e '/^ *$/d;s/[ ]*$//' > ldscripts/${EMULATION_NAME}.xceo
+ rm -f ${COMBRELOC}
+ COMBRELOC=
+ unset RELRO
+ fi
fi
if test -n "$GENERATE_SHLIB_SCRIPT"; then
@@ -370,6 +434,23 @@ if test -n "$GENERATE_SHLIB_SCRIPT"; then
. ${CUSTOMIZER_SCRIPT}
. ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
) | sed -e '/^ *$/d;s/[ ]*$//' > ldscripts/${EMULATION_NAME}.xse
+
+ if test -n "$GENERATE_RELRO_SCRIPT"; then
+ RELRO=" "
+ LD_FLAG=shared
+ (
+ echo "/* Script for ld --shared -z relro: link shared library */"
+ . ${CUSTOMIZER_SCRIPT}
+ . ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
+ ) | sed -e '/^ *$/d;s/[ ]*$//' > ldscripts/${EMULATION_NAME}.xso
+ LD_FLAG=sharedtextonly
+ (
+ echo "/* Script for ld --shared -z relro -z separate-code: link shared library with separate code segment */"
+ . ${CUSTOMIZER_SCRIPT}
+ . ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
+ ) | sed -e '/^ *$/d;s/[ ]*$//' > ldscripts/${EMULATION_NAME}.xseo
+ unset RELRO
+ fi
if test -n "$GENERATE_COMBRELOC_SCRIPT"; then
DATA_ALIGNMENT=${DATA_ALIGNMENT_sc-${DATA_ALIGNMENT}}
LD_FLAG=cshared
@@ -401,8 +482,27 @@ if test -n "$GENERATE_SHLIB_SCRIPT"; then
. ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
) | sed -e '/^ *$/d;s/[ ]*$//' > ldscripts/${EMULATION_NAME}.xswe
rm -f ${COMBRELOC}
- COMBRELOC=
unset RELRO_NOW
+
+ if test -n "$GENERATE_RELRO_SCRIPT"; then
+ LD_FLAG=wshared
+ RELRO=" "
+ COMBRELOC=ldscripts/${EMULATION_NAME}.xsco.tmp
+ ( echo "/* Script for --shared -z combreloc -z relro: shared library, combine & sort relocs with separate code segment */"
+ . ${CUSTOMIZER_SCRIPT}
+ . ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
+ ) | sed -e '/^ *$/d;s/[ ]*$//' > ldscripts/${EMULATION_NAME}.xsco
+ rm -f ${COMBRELOC}
+ LD_FLAG=wsharedtextonly
+ COMBRELOC=ldscripts/${EMULATION_NAME}.xsceo.tmp
+ ( echo "/* Script for --shared -z combreloc -z relro -z separate-code: shared library, combine & sort relocs with separate code segment */"
+ . ${CUSTOMIZER_SCRIPT}
+ . ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
+ ) | sed -e '/^ *$/d;s/[ ]*$//' > ldscripts/${EMULATION_NAME}.xsceo
+ rm -f ${COMBRELOC}
+ unset RELRO
+ fi
+ COMBRELOC=
fi
unset CREATE_SHLIB
fi
@@ -422,6 +522,22 @@ if test -n "$GENERATE_PIE_SCRIPT"; then
. ${CUSTOMIZER_SCRIPT}
. ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
) | sed -e '/^ *$/d;s/[ ]*$//' > ldscripts/${EMULATION_NAME}.xde
+ if test -n "$GENERATE_RELRO_SCRIPT"; then
+ RELRO=" "
+ LD_FLAG=pie
+ (
+ echo "/* Script for ld -pie -z relro: link position independent executable */"
+ . ${CUSTOMIZER_SCRIPT}
+ . ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
+ ) | sed -e '/^ *$/d;s/[ ]*$//' > ldscripts/${EMULATION_NAME}.xdo
+ LD_FLAG=pietextonly
+ (
+ echo "/* Script for ld -pie -z relro -z separate-code: link position independent executable with separate code segment */"
+ . ${CUSTOMIZER_SCRIPT}
+ . ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
+ ) | sed -e '/^ *$/d;s/[ ]*$//' > ldscripts/${EMULATION_NAME}.xdeo
+ unset RELRO
+ fi
if test -n "$GENERATE_COMBRELOC_SCRIPT"; then
DATA_ALIGNMENT=${DATA_ALIGNMENT_sc-${DATA_ALIGNMENT}}
COMBRELOC=ldscripts/${EMULATION_NAME}.xdc.tmp
@@ -453,8 +569,28 @@ if test -n "$GENERATE_PIE_SCRIPT"; then
. ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
) | sed -e '/^ *$/d;s/[ ]*$//' > ldscripts/${EMULATION_NAME}.xdwe
rm -f ${COMBRELOC}
- COMBRELOC=
unset RELRO_NOW
+
+ if test -n "$GENERATE_RELRO_SCRIPT"; then
+ LD_FLAG=wpie
+ RELRO=" "
+ COMBRELOC=ldscripts/${EMULATION_NAME}.xdco.tmp
+ ( echo "/* Script for -pie -z combreloc -z relro: position independent executable, combine & sort relocs with separate code segment */"
+ . ${CUSTOMIZER_SCRIPT}
+ . ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
+ ) | sed -e '/^ *$/d;s/[ ]*$//' > ldscripts/${EMULATION_NAME}.xdco
+ rm -f ${COMBRELOC}
+ LD_FLAG=wpietextonly
+ COMBRELOC=ldscripts/${EMULATION_NAME}.xdceo.tmp
+ ( echo "/* Script for -pie -z combreloc -z relro -z separate-code: position independent executable, combine & sort relocs with separate code segment */"
+ . ${CUSTOMIZER_SCRIPT}
+ . ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
+ ) | sed -e '/^ *$/d;s/[ ]*$//' > ldscripts/${EMULATION_NAME}.xdceo
+ rm -f ${COMBRELOC}
+
+ unset RELRO
+ fi
+ COMBRELOC=
fi
unset CREATE_PIE
fi
generated by cgit v1.1 at 2024-10-10 15:46:37 +0000