[AArch64, ILP32] 2/6 Parametrize elfnn-aarch64.c and add basic support in ld

and gas.

bfd/

	* Makefile.am (BFD64_BACKENDS): Add elf32-aarch64.lo.
	(BUILD_CFILES): Add elf32-aarch64.c.
	(elf32-aarch64.c): New rule for generating from elfnn-aarch64.c.
	* Makefile.in: Re-generated.
	* archures.c (bfd_mach_aarch64_ilp32): New define.
	* bfd-in.h (bfd_elf32_aarch64_init_maps): New declaration.
	(bfd_elf32_aarch64_set_options): Ditto.
	(elf32_aarch64_setup_section_lists): Ditto.
	(elf32_aarch64_next_input_section): Ditto.
	(elf32_aarch64_size_stubs): Ditto.
	(elf32_aarch64_build_stubs): Ditto.
	* bfd-in2.h: Re-generated.
	* config.bfd (aarch64-*-elf): Add bfd_elf32_littleaarch64_vec
	and bfd_elf32_bigaarch64_vec.
	(aarch64-*-linux*): Likewise.
	(aarch64_be-*-elf): Likewise.
	(aarch64_be-*-linux*): Likewise.
	* configure.in (bfd_elf32_bigaarch64_vec)
	(bfd_elf32_littleaarch64_vec): New.
	* configure: Re-generated.
	* cpu-aarch64.c (compatible): Don't allow mixing ilp32 objects with
	lp64 ones.
	(bfd_aarch64_arch_ilp32): New.
	(bfd_aarch64_arch): Link to bfd_aarch64_arch_ilp32.
	* elfnn-aarch64.c (ARCH_SIZE): New define.
	(AARCH64_R, AARCH64_R_STR, LOG_FILE_ALIGN): New defines.
	(GOT_ENTRY_SIZE): Re-define as (ARCH_SIZE / 8).
	(elf64_aarch64_*): Rename to elfNN_aarch64_*.
	(ELF64_R_*): Rename to ELFNN_R_*.
	Plus other paramaterization.
	* targets.c (bfd_elf32_bigaarch64_vec, bfd_elf32_littleaarch64_vec):
	New declarations.
	(_bfd_target_vector): Add bfd_elf32_bigaarch64_vec and
	bfd_elf32_littleaarch64_vec.

gas/

	* config/tc-aarch64.c (ilp32_p): New static variable.
	(elf64_aarch64_target_format): Return the target according to the
	value of 'ilp32_p'.
	(md_begin): Determine 'mach' according to the value of 'ilp32_p'.
	(aarch64_opts): Add support for options '-milp32' and '-mlp64'.
	(aarch64_dwarf2_addr_size): New function.
	* config/tc-aarch64.h (aarch64_dwarf2_addr_size): New declaration.
	(DWARF2_ADDR_SIZE): New define.

ld/

	* Makefile.am (ALL_64_EMULATION_SOURCES): Add eaarch64elf32.c.
	(eaarch64elf32.c): New dependency and rule.
	* Makefile.in: Re-generated.
	* configure.tgt (aarch64-*-elf): Add aarch64elf32.
	(aarch64_be-*-elf, aarch64_be-*-linux*, aarch64-*-linux*): Likewise.
	* emulparams/aarch64elf32.sh: New file.

1 files changed, 4 insertions, 0 deletions

diff --git a/bfd/targets.c b/bfd/targets.c
index e716c3b9a16..b117bfe634c 100644
--- a/bfd/targets.c
+++ b/bfd/targets.c
@@ -736,6 +736,7 @@ extern const bfd_target bfd_elf64_alpha_vec;
 extern const bfd_target bfd_elf64_big_generic_vec;
 extern const bfd_target bfd_elf64_bigmips_vec;
 extern const bfd_target bfd_elf64_bigaarch64_vec;
+extern const bfd_target bfd_elf32_bigaarch64_vec;
 extern const bfd_target bfd_elf64_hppa_linux_vec;
 extern const bfd_target bfd_elf64_hppa_vec;
 extern const bfd_target bfd_elf64_ia64_big_vec;
@@ -745,6 +746,7 @@ extern const bfd_target bfd_elf64_ia64_vms_vec;
 extern const bfd_target bfd_elf64_little_generic_vec;
 extern const bfd_target bfd_elf64_littlemips_vec;
 extern const bfd_target bfd_elf64_littleaarch64_vec;
+extern const bfd_target bfd_elf32_littleaarch64_vec;
 extern const bfd_target bfd_elf64_mmix_vec;
 extern const bfd_target bfd_elf64_powerpc_vec;
 extern const bfd_target bfd_elf64_powerpcle_vec;
@@ -1125,6 +1127,7 @@ static const bfd_target * const _bfd_target_vector[] =
 	&bfd_elf64_big_generic_vec,
 	&bfd_elf64_bigmips_vec,
 	&bfd_elf64_bigaarch64_vec,
+	&bfd_elf32_bigaarch64_vec,
 	&bfd_elf64_hppa_linux_vec,
 	&bfd_elf64_hppa_vec,
 	&bfd_elf64_ia64_big_vec,
@@ -1134,6 +1137,7 @@ static const bfd_target * const _bfd_target_vector[] =
 	&bfd_elf64_little_generic_vec,
 	&bfd_elf64_littlemips_vec,
 	&bfd_elf64_littleaarch64_vec,
+	&bfd_elf32_littleaarch64_vec,
 	&bfd_elf64_mmix_vec,
 	&bfd_elf64_powerpc_vec,
 	&bfd_elf64_powerpcle_vec,