Add support for AArch64 CloudABI binaries.

ld	* Makefile.am (ALL_64_EMULATION_SOURCES): Add support for
	CloudABI on aarch64. For this target we have to make sure we use
	ELFOSABI_CLOUDABI instead of ELFOSABI_NONE.
	* configure.tgt (targ_emul): Likewise.
	* emulparams/aarch64cloudabi.sh: New file.
	* emulparams/aarch64cloudabib.sh: New file.
	* Makefile.in: Regenerate.

bfd	* config.bfd (targ_defvec): Add support for CloudABI on aarch64.
	For this target we have to make sure we use ELFOSABI_CLOUDABI
	instead of ELFOSABI_NONE.
	* configure.ac (tb): Likewise.
	* elfnn-aarch64.c: Likewise.
	* targets.c (_bfd_target_vector): Likewise.
	* configure: Regenerate.

gas	* config/tc-aarch64.c (elf64_aarch64_target_format): Select the
	cloudabi format if the TARGET_OS is cloudabi.

6 files changed, 71 insertions, 0 deletions

diff --git a/ld/ChangeLog b/ld/ChangeLog
index da2227c..31ef37d 100644
--- a/ld/ChangeLog
+++ b/ld/ChangeLog
@@ -1,3 +1,13 @@
+2015-10-29  Ed Schouten  <ed@nuxi.nl>
+
+	* Makefile.am (ALL_64_EMULATION_SOURCES): Add support for
+	CloudABI on aarch64. For this target we have to make sure we use
+	ELFOSABI_CLOUDABI instead of ELFOSABI_NONE.
+	* configure.tgt (targ_emul): Likewise.
+	* emulparams/aarch64cloudabi.sh: New file.
+	* emulparams/aarch64cloudabib.sh: New file.
+	* Makefile.in: Regenerate.
+
 2015-10-29  Nick Clifton  <nickc@redhat.com>
 
 	PR ld/19146
diff --git a/ld/Makefile.am b/ld/Makefile.am
index 3f9546b..0b3b049 100644
--- a/ld/Makefile.am
+++ b/ld/Makefile.am
@@ -435,6 +435,8 @@ ALL_64_EMULATION_SOURCES = \
 	eaarch64elf32.c \
 	eaarch64elfb.c \
 	eaarch64elf32b.c \
+	eaarch64cloudabi.c \
+	eaarch64cloudabib.c \
 	eaarch64fbsd.c \
 	eaarch64fbsdb.c \
 	eaarch64linux.c \
@@ -1618,6 +1620,14 @@ eaarch64elf32b.c: $(srcdir)/emulparams/aarch64elf32b.sh $(srcdir)/emulparams/aar
   $(ELF_DEPS) $(srcdir)/emultempl/aarch64elf.em \
   $(srcdir)/scripttempl/elf.sc ${GEN_DEPENDS}
 
+eaarch64cloudabi.c: $(srcdir)/emulparams/aarch64cloudabi.sh \
+  $(ELF_DEPS) $(srcdir)/emultempl/aarch64elf.em \
+  $(srcdir)/scripttempl/elf.sc ${GEN_DEPENDS}
+
+eaarch64cloudabib.c: $(srcdir)/emulparams/aarch64cloudabib.sh $(srcdir)/emulparams/aarch64cloudabi.sh \
+  $(ELF_DEPS) $(srcdir)/emultempl/aarch64elf.em \
+  $(srcdir)/scripttempl/elf.sc ${GEN_DEPENDS}
+
 eaarch64fbsd.c: $(srcdir)/emulparams/aarch64fbsd.sh \
   $(ELF_DEPS) $(srcdir)/emultempl/aarch64elf.em \
   $(srcdir)/scripttempl/elf.sc ${GEN_DEPENDS}
diff --git a/ld/Makefile.in b/ld/Makefile.in
index 9237ff0..f799216 100644
--- a/ld/Makefile.in
+++ b/ld/Makefile.in
@@ -764,6 +764,8 @@ ALL_64_EMULATION_SOURCES = \
 	eaarch64elf32.c \
 	eaarch64elfb.c \
 	eaarch64elf32b.c \
+	eaarch64cloudabi.c \
+	eaarch64cloudabib.c \
 	eaarch64fbsd.c \
 	eaarch64fbsdb.c \
 	eaarch64linux.c \
@@ -3122,6 +3124,14 @@ eaarch64elf32b.c: $(srcdir)/emulparams/aarch64elf32b.sh $(srcdir)/emulparams/aar
   $(ELF_DEPS) $(srcdir)/emultempl/aarch64elf.em \
   $(srcdir)/scripttempl/elf.sc ${GEN_DEPENDS}
 
+eaarch64cloudabi.c: $(srcdir)/emulparams/aarch64cloudabi.sh \
+  $(ELF_DEPS) $(srcdir)/emultempl/aarch64elf.em \
+  $(srcdir)/scripttempl/elf.sc ${GEN_DEPENDS}
+
+eaarch64cloudabib.c: $(srcdir)/emulparams/aarch64cloudabib.sh $(srcdir)/emulparams/aarch64cloudabi.sh \
+  $(ELF_DEPS) $(srcdir)/emultempl/aarch64elf.em \
+  $(srcdir)/scripttempl/elf.sc ${GEN_DEPENDS}
+
 eaarch64fbsd.c: $(srcdir)/emulparams/aarch64fbsd.sh \
   $(ELF_DEPS) $(srcdir)/emultempl/aarch64elf.em \
   $(srcdir)/scripttempl/elf.sc ${GEN_DEPENDS}
diff --git a/ld/configure.tgt b/ld/configure.tgt
index 197f13e..6b6bbf2 100644
--- a/ld/configure.tgt
+++ b/ld/configure.tgt
@@ -49,6 +49,8 @@ aarch64_be-*-elf)	targ_emul=aarch64elfb
 			targ_extra_emuls="aarch64elf aarch64elf32 aarch64elf32b armelfb armelf" ;;
 aarch64-*-elf)		targ_emul=aarch64elf
 			targ_extra_emuls="aarch64elf32 aarch64elf32b aarch64elfb armelf armelfb" ;;
+aarch64-*-cloudabi*)	targ_emul=aarch64cloudabi
+			targ_extra_emuls=aarch64cloudabib ;;
 aarch64-*-freebsd*)	targ_emul=aarch64fbsd
 			targ_extra_emuls="aarch64fbsdb aarch64elf" ;;
 aarch64_be-*-linux*)	targ_emul=aarch64linuxb
diff --git a/ld/emulparams/aarch64cloudabi.sh b/ld/emulparams/aarch64cloudabi.sh
new file mode 100644
index 0000000..88263e5
--- /dev/null
+++ b/ld/emulparams/aarch64cloudabi.sh
@@ -0,0 +1,37 @@
+ARCH=aarch64
+MACHINE=
+NOP=0
+
+SCRIPT_NAME=elf
+ELFSIZE=64
+OUTPUT_FORMAT="elf64-littleaarch64-cloudabi"
+BIG_OUTPUT_FORMAT="elf64-bigaarch64-cloudabi"
+LITTLE_OUTPUT_FORMAT="elf64-littleaarch64-cloudabi"
+NO_REL_RELOCS=yes
+
+TEMPLATE_NAME=elf32
+EXTRA_EM_FILE=aarch64elf
+
+GENERATE_SHLIB_SCRIPT=yes
+GENERATE_PIE_SCRIPT=yes
+
+MAXPAGESIZE="CONSTANT (MAXPAGESIZE)"
+COMMONPAGESIZE="CONSTANT (COMMONPAGESIZE)"
+SEPARATE_GOTPLT=24
+IREL_IN_PLT=
+
+TEXT_START_ADDR=0x400000
+
+DATA_START_SYMBOLS='PROVIDE (__data_start = .);';
+
+# AArch64 does not support .s* sections.
+NO_SMALL_DATA=yes
+
+OTHER_BSS_SYMBOLS='__bss_start__ = .;'
+OTHER_BSS_END_SYMBOLS='_bss_end__ = . ; __bss_end__ = . ;'
+OTHER_END_SYMBOLS='__end__ = . ;'
+
+OTHER_SECTIONS='.note.gnu.arm.ident 0 : { KEEP (*(.note.gnu.arm.ident)) }'
+ATTRS_SECTIONS='.ARM.attributes 0 : { KEEP (*(.ARM.attributes)) KEEP (*(.gnu.attributes)) }'
+# Ensure each PLT entry is aligned to a cache line.
+PLT=".plt          ${RELOCATING-0} : ALIGN(16) { *(.plt)${IREL_IN_PLT+ *(.iplt)} }"
diff --git a/ld/emulparams/aarch64cloudabib.sh b/ld/emulparams/aarch64cloudabib.sh
new file mode 100644
index 0000000..909d0f3
--- /dev/null
+++ b/ld/emulparams/aarch64cloudabib.sh
@@ -0,0 +1,2 @@
+. ${srcdir}/emulparams/aarch64cloudabi.sh
+OUTPUT_FORMAT="elf64-bigaarch64-cloudabi"