arc: Add new linker emulation and scripts for ARCv3 ISA.

Add ARCv3's linker bits. Remove obsolete tests.

ld/
xxxx-xx-xx  Claudiu Zissulescu  <claziss@synopsys.com>

	* ld/Makefile.am: Add ARC64 targets.
	* ld/configure.tgt: Likewise.
	* ld/Makefile.in: Regenerate.
	* ld/emulparams/arc64elf32.sh: New file.
	* ld/emulparams/arc64elf64.sh: Likewise.
	* ld/emulparams/arc64linux32.sh: Likewise.
	* ld/emulparams/arc64linux64.sh: Likewise.
	* ld/scripttempl/elfarc.sc: Update stack and heap definitions.
	* ld/testsuite/ld-arc/got-weak.d: Deleted file.
	* ld/testsuite/ld-arc/got-weak.s: Likewise.

Signed-off-by: Claudiu Zissulescu <claziss@synopsys.com>

10 files changed, 103 insertions, 35 deletions

diff --git a/ld/Makefile.am b/ld/Makefile.am
index 9664d4c..1efb172 100644
--- a/ld/Makefile.am
+++ b/ld/Makefile.am
@@ -391,6 +391,10 @@ ALL_64_EMULATION_SOURCES = \
 	eaarch64nto.c \
 	eaarch64pe.c \
 	earm64pe.c \
+	earc64elf32.c \
+	earc64elf64.c \
+	earc64linux32.c \
+	earc64linux64.c \
 	eelf32_x86_64.c \
 	eelf32b4300.c \
 	eelf32bmip.c \
diff --git a/ld/Makefile.in b/ld/Makefile.in
index afd22d4..ce2fb16 100644
--- a/ld/Makefile.in
+++ b/ld/Makefile.in
@@ -890,6 +890,10 @@ ALL_64_EMULATION_SOURCES = \
 	eaarch64nto.c \
 	eaarch64pe.c \
 	earm64pe.c \
+	earc64elf32.c \
+	earc64elf64.c \
+	earc64linux32.c \
+	earc64linux64.c \
 	eelf32_x86_64.c \
 	eelf32b4300.c \
 	eelf32bmip.c \
@@ -1279,6 +1283,10 @@ distclean-compile:
 @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/eaixrs6.Po@am__quote@
 @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/ealpha.Po@am__quote@
 @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/ealphavms.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/earc64elf32.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/earc64elf64.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/earc64linux32.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/earc64linux64.Po@am__quote@
 @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/earcelf.Po@am__quote@
 @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/earclinux.Po@am__quote@
 @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/earclinux_nps.Po@am__quote@
diff --git a/ld/configure.tgt b/ld/configure.tgt
index ff0aaaa..d69dee8 100644
--- a/ld/configure.tgt
+++ b/ld/configure.tgt
@@ -153,10 +153,27 @@ alpha*-*-*vms*)		targ_emul=alphavms
 			;;
 am33_2.0-*-linux*)	targ_emul=elf32am33lin # mn10300 variant
 			;;
-arc*-*-elf*)		targ_emul=arcelf
+arc-*-elf* | arc[be]*-*-elf*)	targ_emul=arcelf
 			targ_extra_emuls="arclinux arclinux_nps arcv2elf arcv2elfx"
 			;;
-arc*-*-linux*)		case "${with_cpu}" in
+arc64-*-elf*)		targ_emul=arc64elf64
+			targ_extra_emuls="arc64elf32 arc64linux64 arc64linux32"
+			targ_extra_libpath=$targ_extra_emuls
+			;;
+arc32-*-elf*)		targ_emul=arc64elf32
+			targ_extra_emuls="arc64linux32 arc64elf64 arc64linux64"
+			targ_extra_libpath=$targ_extra_emuls
+			;;
+arc64-*-linux*)		targ_emul=arc64linux64
+			targ_extra_emuls="arc64elf64 arc64elf32 arc64linux32"
+			targ_extra_libpath=$targ_extra_emuls
+			;;
+arc32-*-linux*)		targ_emul=arc64linux32
+			targ_extra_emuls="arc64elf32 arc64elf64 arc64linux64"
+			targ_extra_libpath=$targ_extra_emuls
+			;;
+arc-*-linux* | arc[eb]*-linux*)
+			case "${with_cpu}" in
 			nps400)	targ_emul=arclinux_nps
 				targ_extra_emuls=arclinux
 				;;
diff --git a/ld/emulparams/arc64elf32.sh b/ld/emulparams/arc64elf32.sh
new file mode 100644
index 0000000..0f8389a
--- /dev/null
+++ b/ld/emulparams/arc64elf32.sh
@@ -0,0 +1,12 @@
+SCRIPT_NAME=elf
+ELFSIZE=32
+SCRIPT_NAME=elfarc
+TEMPLATE_NAME=elf
+OUTPUT_FORMAT="elf32-littlearc64"
+
+TEXT_START_ADDR=0x00
+
+MAXPAGESIZE="CONSTANT (MAXPAGESIZE)"
+ARCH="arc64:32"
+ENTRY=__start
+EMBEDDED=yes
diff --git a/ld/emulparams/arc64elf64.sh b/ld/emulparams/arc64elf64.sh
new file mode 100644
index 0000000..d429134
--- /dev/null
+++ b/ld/emulparams/arc64elf64.sh
@@ -0,0 +1,12 @@
+SCRIPT_NAME=elf
+ELFSIZE=64
+SCRIPT_NAME=elfarc
+TEMPLATE_NAME=elf
+OUTPUT_FORMAT="elf64-littlearc64"
+
+TEXT_START_ADDR=0x00
+
+MAXPAGESIZE="CONSTANT (MAXPAGESIZE)"
+ARCH="arc64:64"
+ENTRY=__start
+EMBEDDED=yes
diff --git a/ld/emulparams/arc64linux32.sh b/ld/emulparams/arc64linux32.sh
new file mode 100644
index 0000000..1ad8f3d
--- /dev/null
+++ b/ld/emulparams/arc64linux32.sh
@@ -0,0 +1,22 @@
+ARCH="arc64:32"
+
+SCRIPT_NAME=elf
+ELFSIZE=32
+OUTPUT_FORMAT="elf32-littlearc64"
+
+TEMPLATE_NAME=elf
+
+GENERATE_SHLIB_SCRIPT=yes
+GENERATE_PIE_SCRIPT=yes
+
+MAXPAGESIZE="CONSTANT (MAXPAGESIZE)"
+COMMONPAGESIZE="CONSTANT (COMMONPAGESIZE)"
+
+TEXT_START_ADDR=0x10000
+
+ENTRY=__start
+
+# To support RELRO security feature.
+NO_SMALL_DATA=yes
+SEPARATE_GOTPLT="SIZEOF (.got.plt) >= 12 ? 12 : 0"
+GENERATE_COMBRELOC_SCRIPT=yes
diff --git a/ld/emulparams/arc64linux64.sh b/ld/emulparams/arc64linux64.sh
new file mode 100644
index 0000000..89ff73d
--- /dev/null
+++ b/ld/emulparams/arc64linux64.sh
@@ -0,0 +1,22 @@
+ARCH="arc64:64"
+
+SCRIPT_NAME=elf
+ELFSIZE=64
+OUTPUT_FORMAT="elf64-littlearc64"
+
+TEMPLATE_NAME=elf
+
+GENERATE_SHLIB_SCRIPT=yes
+GENERATE_PIE_SCRIPT=yes
+
+MAXPAGESIZE="CONSTANT (MAXPAGESIZE)"
+COMMONPAGESIZE="CONSTANT (COMMONPAGESIZE)"
+
+TEXT_START_ADDR=0x10000
+
+ENTRY=__start
+
+# To support RELRO security feature.
+NO_SMALL_DATA=yes
+SEPARATE_GOTPLT=8 #FIXME! what is the true value here?
+GENERATE_COMBRELOC_SCRIPT=yes
diff --git a/ld/scripttempl/elfarc.sc b/ld/scripttempl/elfarc.sc
index 1ae0248..78cb0fa 100644
--- a/ld/scripttempl/elfarc.sc
+++ b/ld/scripttempl/elfarc.sc
@@ -394,20 +394,10 @@ test -n "${RELOCATING}" && cat <<EOF
      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 :
-  {
-	__start_heap = . ;
-	. = . + (DEFINED(__HEAP_SIZE) ? __HEAP_SIZE : (DEFINED(__DEFAULT_HEAP_SIZE) ? __DEFAULT_HEAP_SIZE : 20k)) ;
-	__end_heap = . ;
-  }
-
-  . = ALIGN(0x8);
-  .stack :
-  {
-	__stack = . ;
-	. = . + (DEFINED(__STACK_SIZE) ? __STACK_SIZE : (DEFINED(__DEFAULT_STACK_SIZE) ? __DEFAULT_STACK_SIZE : 64k)) ;
-	__stack_top = . ;
-  }
+  ${RELOCATING+. = ALIGN(${ALIGNMENT});}
+  ${RELOCATING+ PROVIDE (__start_heap = .) ; }
+  ${RELOCATING+ PROVIDE (__stack_top = . + (DEFINED(__HEAP_SIZE) ? __HEAP_SIZE : (DEFINED(__DEFAULT_HEAP_SIZE) ? __DEFAULT_HEAP_SIZE : 20k)) + (DEFINED(__STACK_SIZE) ? __STACK_SIZE : 64k));}
+  ${RELOCATING+ PROVIDE (__end_heap = . + (DEFINED(__HEAP_SIZE) ? __HEAP_SIZE : (DEFINED(__DEFAULT_STACK_SIZE) ? __DEFAULT_STACK_SIZE : 20k)));}
 EOF
 
 source_sh $srcdir/scripttempl/misc-sections.sc
diff --git a/ld/testsuite/ld-arc/got-weak.d b/ld/testsuite/ld-arc/got-weak.d
deleted file mode 100644
index a7f5b2f..0000000
--- a/ld/testsuite/ld-arc/got-weak.d
+++ /dev/null
@@ -1,12 +0,0 @@
-#source: got-weak.s
-#as:
-#ld: -Bstatic
-#objdump: -d
-
-[^:]*:\s+file format elf32-.*arc
-
-
-Disassembly of section \.text:
-
-[0-9a-f]+ <.*>:
-^\s+[0-9a-f]+:\s+2730\s7f80\s[0-9a-f]+\s[0-9a-f]+\s+ld\s+r\d+,\[pcl,.*
diff --git a/ld/testsuite/ld-arc/got-weak.s b/ld/testsuite/ld-arc/got-weak.s
deleted file mode 100644
index 8ea18be..0000000
--- a/ld/testsuite/ld-arc/got-weak.s
+++ /dev/null
@@ -1,7 +0,0 @@
-	.cpu archs
-
-	.weak symb
-	.global __start
-	.text
-__start:
-	ld	r0,[pcl,@symb@gotpc]