2016-08-04 Thomas Preud'homme <thomas.preudhomme@arm.com>

2016-08-04  Thomas Preud'homme  <thomas.preudhomme@arm.com>

bfd/
	* bfd-in.h (bfd_elf32_arm_set_target_relocs): Add one parameter.
	* bfd-in2.h: Regenerate.
	* elf32-arm.c (struct elf32_arm_link_hash_table): Declare new
	cmse_implib field.
	(bfd_elf32_arm_set_target_relocs): Add new parameter to initialize
	cmse_implib field in struct elf32_arm_link_hash_table.
	(elf32_arm_filter_cmse_symbols): New function.
	(elf32_arm_filter_implib_symbols): Likewise.
	(elf_backend_filter_implib_symbols): Define to
	elf32_arm_filter_implib_symbols.

ld/
	* emultempl/armelf.em (cmse_implib): Declare and define this new
	static variable.
	(arm_elf_create_output_section_statements): Add new cmse_implib
	parameter.
	(OPTION_CMSE_IMPLIB): Define macro.
	(PARSE_AND_LIST_LONGOPTS): Add entry for new --cmse-implib switch.
	(PARSE_AND_LIST_OPTIONS): Likewise.
	(PARSE_AND_LIST_ARGS_CASES): Handle OPTION_CMSE_IMPLIB case.
	* ld.texinfo (--cmse-implib): Document new option.
	* testsuite/ld-arm/arm-elf.exp
	(Secure gateway import library generation): New test.
	(Secure gateway import library generation: errors): Likewise.
	* testsuite/ld-arm/cmse-implib.s: New file.
	* testsuite/ld-arm/cmse-implib-errors.out: Likewise.
	* testsuite/ld-arm/cmse-implib.rd: Likewise.