ELF: Don't generate unused section symbols

[deliverable/binutils-gdb.git] / gas / ChangeLog

2021-01-07  H.J. Lu  <hongjiu.lu@intel.com>

	PR 27109
	* read.c (s_reloc): Call symbol_mark_used_in_reloc on the
	section symbol.
	* subsegs.c (subseg_set_rest): Set BSF_SECTION_SYM_USED if needed.
	* write.c (adjust_reloc_syms): Call symbol_mark_used_in_reloc
	on the section symbol.
	(set_symtab): Don't generate unused section symbols.
	(maybe_generate_build_notes): Call symbol_mark_used_in_reloc
	on the section symbol.
	* config/obj-elf.c (elf_adjust_symtab): Call
	symbol_mark_used_in_reloc on the group signature symbol.
	* testsuite/gas/cfi/cfi-label.d: Remove unused section symbols
	from expected output.
	* testsuite/gas/elf/elf.exp (run_elf_list_test): Check
	is_elf_unused_section_symbols.
	* testsuite/gas/elf/section2.e: Updated.
	* testsuite/gas/elf/section2.e-unused: New file.
	* testsuite/gas/elf/symver.d: Remove unused section symbols.
	* testsuite/gas/i386/ilp32/elf/symver.d: Likewise.
	* testsuite/gas/i386/ilp32/x86-64-size-1.d: Likewise.
	* testsuite/gas/i386/ilp32/x86-64-size-3.d: Likewise.
	* testsuite/gas/i386/ilp32/x86-64-size-5.d: Likewise.
	* testsuite/gas/i386/ilp32/x86-64-unwind.d: Likewise.
	* testsuite/gas/i386/size-1.d: Likewise.
	* testsuite/gas/i386/size-3.d: Likewise.
	* testsuite/gas/i386/svr4.d: Likewise.
	* testsuite/gas/i386/x86-64-size-1.d: Likewise.
	* testsuite/gas/i386/x86-64-size-3.d: Likewise.
	* testsuite/gas/i386/x86-64-size-5.d: Likewise.
	* testsuite/gas/i386/x86-64-unwind.d: Likewise.

2021-01-07  Philipp Tomsich  <prt@gnu.org>

	* config/tc-riscv.c (riscv_multi_subset_supports): Added
	INSN_CLASS_ZIHINTPAUSE.
	* testsuite/gas/riscv/pause.d: New testcase.  Adding coverage for
	the pause hint instruction.
	* testsuite/gas/riscv/pause.s: Likewise.

2021-01-07  Claire Xenia Wolf  <claire@symbioticeda.com>
	    Jim Wilson  <jimw@sifive.com>
	    Andrew Waterman  <andrew@sifive.com>
	    Maxim Blinov  <maxim.blinov@embecosm.com>
	    Kito Cheng  <kito.cheng@sifive.com>
	    Nelson Chu  <nelson.chu@sifive.com>

	* config/tc-riscv.c (riscv_multi_subset_supports): Handle INSN_CLASS_ZB*.
	(riscv_get_default_ext_version): Do not check the default_isa_spec when
	the version defined in the riscv_opcodes table is ISA_SPEC_CLASS_DRAFT.
	* testsuite/gas/riscv/bitmanip-insns-32.d: New testcase.
	* testsuite/gas/riscv/bitmanip-insns-64.d: Likewise.
	* testsuite/gas/riscv/bitmanip-insns.s: Likewise.

2021-01-06  Alan Modra  <amodra@gmail.com>

	* testsuite/gas/sparc/sparc.exp: Move 64-bit tests inside gas_64_check.

2021-01-06  Alan Modra  <amodra@gmail.com>

	* testsuite/gas/macros/app1.d: xfail tic30.
	* testsuite/gas/macros/app2.d: Likewise.
	* testsuite/gas/macros/app3.d: Likewise.
	* testsuite/gas/macros/app4.d: Likewise.

2021-01-06  Marcus Comstedt  <marcus@mc.pp.se>

	* doc/as.texi: Add -mlittle-endian and -mbig-endian to docs.
	* doc/c-riscv.texi: Likewise.

2021-01-06  Marcus Comstedt  <marcus@mc.pp.se>

	* testsuite/gas/riscv/li32.d: Accept bigriscv in addition
	to littleriscv.
	* testsuite/gas/riscv/li64.d: Likewise.
	* testsuite/gas/riscv/lla32.d: Likewise.
	* testsuite/gas/riscv/lla64.d: Likewise.
	* testsuite/gas/riscv/march-ok-g2.d: Likewise.
	* testsuite/gas/riscv/march-ok-g2_p1.d: Likewise.
	* testsuite/gas/riscv/march-ok-g2p0.d: Likewise.
	* testsuite/gas/riscv/march-ok-i2p0.d: Likewise.
	* testsuite/gas/riscv/march-ok-i2p0m2_a2f2.d: Likewise.
	* testsuite/gas/riscv/march-ok-nse-with-version.d: Likewise.
	* testsuite/gas/riscv/march-ok-two-nse.d: Likewise.

2021-01-06  Marcus Comstedt  <marcus@mc.pp.se>

	* config/tc-riscv.c (riscv_target_format): Add elf64-bigriscv and
	elf32-bigriscv.
	(install_insn): Always write instructions as little endian.
	(riscv_make_nops): Likewise.
	(md_convert_frag_branch): Likewise.
	(md_number_to_chars): Write data in target endianness.
	(options, md_longopts): Add -mbig-endian and -mlittle-endian options.
	(md_parse_option): Handle the endian options.
	* config/tc-riscv.h: Only define TARGET_BYTES_BIG_ENDIAN if not
	already defined.
	* configure.tgt: Added riscv64be*, riscv32be*, riscvbe*.

2021-01-04  H.J. Lu  <hongjiu.lu@intel.com>

	PR ld/26256
	* config/obj-elf.c (obj_elf_change_section): Also filter out
	SHF_LINK_ORDER.

2021-01-04  Alan Modra  <amodra@gmail.com>

	PR 27102
	* symbols.c (S_SET_EXTERNAL): Revise section symbol warning
	message and register symbol error message.

2021-01-04  Alan Modra  <amodra@gmail.com>

	PR 27101
	* read.c (s_align): Use a large enough type for "align" to hold
	the result of get_absolute_expression.

2021-01-01  Nicolas Boulenguez  <nicolas@debian.org>

	* config/tc-i386.c: Correct comment spelling.
	* config/tc-riscv.c: Likewise.
	* config/tc-s390.c: Correct comment grammar.
	* doc/c-i386.texi: Correct spelling.
	* doc/c-s390.texi: Correct grammar.

2021-01-01  Alan Modra  <amodra@gmail.com>

	Update year range in copyright notice of all files.

2021-01-01  Hans-Peter Nilsson  <hp@bitrange.com>

	* config/tc-mmix.h (md_single_noop_insn): Change to "swym 0".

For older changes see ChangeLog-2020
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