gold: aarch64 split stack supportusers/azanella/aarch64-split-stack

This patch adds gold support for split-stack function calling non-split
function on aarch64.

gold/ChangeLog:

	* gold/aarch64.c (AArch64_insn_utilities::aarch64_movn_decode_imm):
	New function.
	(AArch64_insn_utilities::aarch64_movk_decode_imm): Likewise.
	(AArch64_insn_utilities::clz_hwi): Likewise.
	(AArch64_insn_utilities::aarch64_bitmask_imm): Likewise.
	(Target_aarch64::do_calls_non_split): Likewise.
	* gold/testsuite/Makefile.am [DEFAULT_TARGET_AARCH64] (check_SCRIPTS):
	add split_aarch64.sh.
	[DEFAULT_TARGET_AARCH64] (check_DATA): Add split_aarch64_{1,2,3,4,r)
	tests.
	[DEFAULT_TARGET_AARCH64] (SPLIT_DEFSYMS): New rule.
	[DEFAULT_TARGET_AARCH64] (split_aarch64_1.o): Likewise.
	[DEFAULT_TARGET_AARCH64] (split_aarch64_2.o): Likewise.
	[DEFAULT_TARGET_AARCH64] (split_aarch64_3.o): Likewise.
	[DEFAULT_TARGET_AARCH64] (split_aarch64_4.o): Likewise.
	[DEFAULT_TARGET_AARCH64] (split_aarch64_r.o): Likewise.
	[DEFAULT_TARGET_AARCH64] (split_aarch64_n.o): Likewise.
	[DEFAULT_TARGET_AARCH64] (split_aarch64_1): Likewise.
	[DEFAULT_TARGET_AARCH64] (split_aarch64_2): Likewise.
	[DEFAULT_TARGET_AARCH64] (split_aarch64_2.stdout): Likewise.
	[DEFAULT_TARGET_AARCH64] (split_aarch64_3.stdout): Likewise.
	[DEFAULT_TARGET_AARCH64] (split_aarch64_4): Likewise.
	[DEFAULT_TARGET_AARCH64] (split_aarch64_4.stdout): Likewise.
	[DEFAULT_TARGET_AARCH64] (split_aarch64_r.stdout): Likewise.
	[DEFAULT_TARGET_AARCH64] (MOSTLYCLEANFILES): Likewise.
	* gold/testsuite/split_aarch64.sh: New file.
	* gold/testsuite/split_aarch64_1.s: Likewise.
	* gold/testsuite/split_aarch64_2.s: Likewise.
	* gold/testsuite/split_aarch64_3.s: Likewise.
	* gold/testsuite/split_aarch64_4.s: Likewise.
	* gold/testsuite/split_aarch64_n.s: Likewise.

1 files changed, 38 insertions, 2 deletions

diff --git a/gold/testsuite/Makefile.in b/gold/testsuite/Makefile.in
index bbf8dc1..602e3ff 100644
--- a/gold/testsuite/Makefile.in
+++ b/gold/testsuite/Makefile.in
@@ -1012,16 +1012,23 @@ check_PROGRAMS = $(am__EXEEXT_1) $(am__EXEEXT_2) $(am__EXEEXT_3) \
 @DEFAULT_TARGET_ARM_TRUE@@NATIVE_OR_CROSS_LINKER_TRUE@	arm_target2_abs \
 @DEFAULT_TARGET_ARM_TRUE@@NATIVE_OR_CROSS_LINKER_TRUE@	arm_target2_got_rel \
 @DEFAULT_TARGET_ARM_TRUE@@NATIVE_OR_CROSS_LINKER_TRUE@	arm_target_lazy_init
+#MOSTLYCLEANFILES += aarch64_reloc_none split_aarch64_1 split_aarch64_2 \
+#	split_aarch64_3 split_aarch64_r
 @DEFAULT_TARGET_AARCH64_TRUE@@NATIVE_OR_CROSS_LINKER_TRUE@am__append_100 = aarch64_reloc_none.sh \
+@DEFAULT_TARGET_AARCH64_TRUE@@NATIVE_OR_CROSS_LINKER_TRUE@	split_aarch64.sh \
 @DEFAULT_TARGET_AARCH64_TRUE@@NATIVE_OR_CROSS_LINKER_TRUE@	aarch64_relocs.sh \
 @DEFAULT_TARGET_AARCH64_TRUE@@NATIVE_OR_CROSS_LINKER_TRUE@	pr21430.sh \
 @DEFAULT_TARGET_AARCH64_TRUE@@NATIVE_OR_CROSS_LINKER_TRUE@	aarch64_tlsdesc.sh
 @DEFAULT_TARGET_AARCH64_TRUE@@NATIVE_OR_CROSS_LINKER_TRUE@am__append_101 = aarch64_reloc_none.stdout \
+@DEFAULT_TARGET_AARCH64_TRUE@@NATIVE_OR_CROSS_LINKER_TRUE@	split_aarch64_1.stdout \
+@DEFAULT_TARGET_AARCH64_TRUE@@NATIVE_OR_CROSS_LINKER_TRUE@	split_aarch64_2.stdout \
+@DEFAULT_TARGET_AARCH64_TRUE@@NATIVE_OR_CROSS_LINKER_TRUE@	split_aarch64_3.stdout \
+@DEFAULT_TARGET_AARCH64_TRUE@@NATIVE_OR_CROSS_LINKER_TRUE@	split_aarch64_4.stdout \
+@DEFAULT_TARGET_AARCH64_TRUE@@NATIVE_OR_CROSS_LINKER_TRUE@	split_aarch64_r.stdout \
 @DEFAULT_TARGET_AARCH64_TRUE@@NATIVE_OR_CROSS_LINKER_TRUE@	aarch64_relocs.stdout \
 @DEFAULT_TARGET_AARCH64_TRUE@@NATIVE_OR_CROSS_LINKER_TRUE@	pr21430.stdout \
 @DEFAULT_TARGET_AARCH64_TRUE@@NATIVE_OR_CROSS_LINKER_TRUE@	aarch64_tlsdesc.stdout
-@DEFAULT_TARGET_AARCH64_TRUE@@NATIVE_OR_CROSS_LINKER_TRUE@am__append_102 = aarch64_reloc_none \
-@DEFAULT_TARGET_AARCH64_TRUE@@NATIVE_OR_CROSS_LINKER_TRUE@	aarch64_relocs \
+@DEFAULT_TARGET_AARCH64_TRUE@@NATIVE_OR_CROSS_LINKER_TRUE@am__append_102 = aarch64_relocs \
 @DEFAULT_TARGET_AARCH64_TRUE@@NATIVE_OR_CROSS_LINKER_TRUE@	pr21430 \
 @DEFAULT_TARGET_AARCH64_TRUE@@NATIVE_OR_CROSS_LINKER_TRUE@	aarch64_tlsdesc
 @DEFAULT_TARGET_S390_TRUE@@NATIVE_OR_CROSS_LINKER_TRUE@am__append_103 = split_s390.sh
@@ -3438,6 +3445,7 @@ LDADD = libgoldtest.a ../libgold.a ../../libiberty/libiberty.a $(LIBINTL) \
 @DEFAULT_TARGET_X86_64_TRUE@@GCC_TRUE@@NATIVE_LINKER_TRUE@exception_x86_64_bnd_test_DEPENDENCIES = gcctestdir/ld exception_x86_64_bnd_1.o exception_x86_64_bnd_2.o
 @DEFAULT_TARGET_X86_64_TRUE@@GCC_TRUE@@NATIVE_LINKER_TRUE@exception_x86_64_bnd_test_LDFLAGS = $(exception_test_LDFLAGS) -Wl,-z,bndplt
 @DEFAULT_TARGET_X86_64_TRUE@@GCC_TRUE@@NATIVE_LINKER_TRUE@exception_x86_64_bnd_test_LDADD = exception_x86_64_bnd_1.o exception_x86_64_bnd_2.o
+@DEFAULT_TARGET_AARCH64_TRUE@@NATIVE_OR_CROSS_LINKER_TRUE@SPLIT_DEFSYMS = --defsym __morestack=0x100 --defsym __morestack_non_split=0x200
 @DEFAULT_TARGET_I386_TRUE@@NATIVE_OR_CROSS_LINKER_TRUE@SPLIT_DEFSYMS = --defsym __morestack=0x100 --defsym __morestack_non_split=0x200
 @DEFAULT_TARGET_S390_TRUE@@NATIVE_OR_CROSS_LINKER_TRUE@SPLIT_DEFSYMS = --defsym __morestack=0x100 --defsym __morestack_non_split=0x200
 @DEFAULT_TARGET_X32_TRUE@@NATIVE_OR_CROSS_LINKER_TRUE@SPLIT_DEFSYMS = --defsym __morestack=0x100 --defsym __morestack_non_split=0x200
@@ -5389,6 +5397,8 @@ arm_target2_got_rel.sh.log: arm_target2_got_rel.sh
 	@p='arm_target2_got_rel.sh'; $(am__check_pre) $(LOG_COMPILE) "$$tst" $(am__check_post)
 aarch64_reloc_none.sh.log: aarch64_reloc_none.sh
 	@p='aarch64_reloc_none.sh'; $(am__check_pre) $(LOG_COMPILE) "$$tst" $(am__check_post)
+split_aarch64.sh.log: split_aarch64.sh
+	@p='split_aarch64.sh'; $(am__check_pre) $(LOG_COMPILE) "$$tst" $(am__check_post)
 aarch64_relocs.sh.log: aarch64_relocs.sh
 	@p='aarch64_relocs.sh'; $(am__check_pre) $(LOG_COMPILE) "$$tst" $(am__check_post)
 pr21430.sh.log: pr21430.sh
@@ -7999,6 +8009,32 @@ uninstall-am:
 @DEFAULT_TARGET_AARCH64_TRUE@@NATIVE_OR_CROSS_LINKER_TRUE@	../ld-new -o $@ aarch64_reloc_none.o --gc-sections
 @DEFAULT_TARGET_AARCH64_TRUE@@NATIVE_OR_CROSS_LINKER_TRUE@aarch64_reloc_none.stdout: aarch64_reloc_none
 @DEFAULT_TARGET_AARCH64_TRUE@@NATIVE_OR_CROSS_LINKER_TRUE@	$(TEST_NM) $< > $@
+@DEFAULT_TARGET_AARCH64_TRUE@@NATIVE_OR_CROSS_LINKER_TRUE@split_aarch64_1.o: split_aarch64_1.s
+@DEFAULT_TARGET_AARCH64_TRUE@@NATIVE_OR_CROSS_LINKER_TRUE@	$(TEST_AS) -o $@ $<
+@DEFAULT_TARGET_AARCH64_TRUE@@NATIVE_OR_CROSS_LINKER_TRUE@split_aarch64_2.o: split_aarch64_2.s
+@DEFAULT_TARGET_AARCH64_TRUE@@NATIVE_OR_CROSS_LINKER_TRUE@	$(TEST_AS) -o $@ $<
+@DEFAULT_TARGET_AARCH64_TRUE@@NATIVE_OR_CROSS_LINKER_TRUE@split_aarch64_3.o: split_aarch64_3.s
+@DEFAULT_TARGET_AARCH64_TRUE@@NATIVE_OR_CROSS_LINKER_TRUE@	$(TEST_AS) -o $@ $<
+@DEFAULT_TARGET_AARCH64_TRUE@@NATIVE_OR_CROSS_LINKER_TRUE@split_aarch64_4.o: split_aarch64_4.s
+@DEFAULT_TARGET_AARCH64_TRUE@@NATIVE_OR_CROSS_LINKER_TRUE@	$(TEST_AS) -o $@ $<
+@DEFAULT_TARGET_AARCH64_TRUE@@NATIVE_OR_CROSS_LINKER_TRUE@split_aarch64_n.o: split_aarch64_n.s
+@DEFAULT_TARGET_AARCH64_TRUE@@NATIVE_OR_CROSS_LINKER_TRUE@	$(TEST_AS) -o $@ $<
+@DEFAULT_TARGET_AARCH64_TRUE@@NATIVE_OR_CROSS_LINKER_TRUE@split_aarch64_1: split_aarch64_1.o ../ld-new
+@DEFAULT_TARGET_AARCH64_TRUE@@NATIVE_OR_CROSS_LINKER_TRUE@	../ld-new $(SPLIT_DEFSYMS) -o $@ split_aarch64_1.o
+@DEFAULT_TARGET_AARCH64_TRUE@@NATIVE_OR_CROSS_LINKER_TRUE@split_aarch64_1.stdout: split_aarch64_1
+@DEFAULT_TARGET_AARCH64_TRUE@@NATIVE_OR_CROSS_LINKER_TRUE@	$(TEST_OBJDUMP) -d $< > $@
+@DEFAULT_TARGET_AARCH64_TRUE@@NATIVE_OR_CROSS_LINKER_TRUE@split_aarch64_2: split_aarch64_2.o split_aarch64_n.o ../ld-new
+@DEFAULT_TARGET_AARCH64_TRUE@@NATIVE_OR_CROSS_LINKER_TRUE@	../ld-new $(SPLIT_DEFSYMS) -o $@ split_aarch64_2.o split_aarch64_n.o
+@DEFAULT_TARGET_AARCH64_TRUE@@NATIVE_OR_CROSS_LINKER_TRUE@split_aarch64_2.stdout: split_aarch64_2
+@DEFAULT_TARGET_AARCH64_TRUE@@NATIVE_OR_CROSS_LINKER_TRUE@	$(TEST_OBJDUMP) -d $< > $@
+@DEFAULT_TARGET_AARCH64_TRUE@@NATIVE_OR_CROSS_LINKER_TRUE@split_aarch64_3.stdout: split_aarch64_3.o split_aarch64_n.o ../ld-new
+@DEFAULT_TARGET_AARCH64_TRUE@@NATIVE_OR_CROSS_LINKER_TRUE@	../ld-new $(SPLIT_DEFSYMS) -o split_aarch64_3 split_aarch64_3.o split_aarch64_n.o > $@ 2>&1 || exit 0
+@DEFAULT_TARGET_AARCH64_TRUE@@NATIVE_OR_CROSS_LINKER_TRUE@split_aarch64_4: split_aarch64_4.o split_aarch64_n.o ../ld-new
+@DEFAULT_TARGET_AARCH64_TRUE@@NATIVE_OR_CROSS_LINKER_TRUE@	../ld-new $(SPLIT_DEFSYMS) -o $@ split_aarch64_4.o split_aarch64_n.o
+@DEFAULT_TARGET_AARCH64_TRUE@@NATIVE_OR_CROSS_LINKER_TRUE@split_aarch64_4.stdout: split_aarch64_4
+@DEFAULT_TARGET_AARCH64_TRUE@@NATIVE_OR_CROSS_LINKER_TRUE@	$(TEST_OBJDUMP) -d $< > $@
+@DEFAULT_TARGET_AARCH64_TRUE@@NATIVE_OR_CROSS_LINKER_TRUE@split_aarch64_r.stdout: split_aarch64_1.o split_aarch64_n.o ../ld-new
+@DEFAULT_TARGET_AARCH64_TRUE@@NATIVE_OR_CROSS_LINKER_TRUE@	../ld-new -r split_aarch64_1.o split_aarch64_n.o -o split_aarch64_r > $@ 2>&1 || exit 0
 @DEFAULT_TARGET_AARCH64_TRUE@@NATIVE_OR_CROSS_LINKER_TRUE@aarch64_globals.o: aarch64_globals.s
 @DEFAULT_TARGET_AARCH64_TRUE@@NATIVE_OR_CROSS_LINKER_TRUE@	$(TEST_AS) -o $@ $<
 @DEFAULT_TARGET_AARCH64_TRUE@@NATIVE_OR_CROSS_LINKER_TRUE@aarch64_relocs.o: aarch64_relocs.s