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The software trap instruction HLT that was introduced in Armv8-a is used
as the semihosting trap instruction in AArch64. In order to allow systems
configured to run AArch64 code to also run AArch32 with semihosting it was
decided that AArch32 should also use HLT in the case of the "mixed mode"
environment. This requires that HLT also be backported to all earlier
architectures. The instruction is in the undefined encoding space earlier
architectures but must trigger a semihosting trap [3].
The Arm Architectural Reference Manual [1] doesn't explicitly mention this
however this is an explicit requirement in the Semihosting-v2 protocol [2].
[1] https://developer.arm.com/docs/ddi0487/latest/arm-architecture-reference-manual-armv8-for-armv8-a-architecture-profile
[2] https://developer.arm.com/docs/100863/latest/the-semihosting-interface
[3] 19a6e31c9d
gas/ChangeLog:
* config/tc-arm.c (insns): Redefine THUMB_VARIANT and ARM_VARIANT for
hlt to armv1.
* testsuite/gas/arm/armv8a-automatic-hlt.d: Update TAGs
* testsuite/gas/arm/hlt.d: New test.
* testsuite/gas/arm/hlt.s: New test.
opcodes/ChangeLog:
* arm-dis.c (arm_opcodes): Redefine hlt to armv1.
126 lines
3.6 KiB
Plaintext
126 lines
3.6 KiB
Plaintext
2019-02-07 Tamar Christina <tamar.christina@arm.com>
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* arm-dis.c (arm_opcodes): Redefine hlt to armv1.
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2019-02-07 Tamar Christina <tamar.christina@arm.com>
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PR binutils/23212
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* aarch64-opc.h (enum aarch64_field_kind): Add FLD_sz.
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* aarch64-opc.c (verify_elem_sd): New.
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(fields): Add FLD_sz entr.
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* aarch64-tbl.h (_SIMD_INSN): New.
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(aarch64_opcode_table): Add elem_sd verifier to fmla, fmls, fmul and
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fmulx scalar and vector by element isns.
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2019-02-07 Nick Clifton <nickc@redhat.com>
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* po/sv.po: Updated Swedish translation.
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2019-01-31 Andreas Krebbel <krebbel@linux.ibm.com>
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* s390-mkopc.c (main): Accept arch13 as cpu string.
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* s390-opc.c: Add new instruction formats and instruction opcode
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masks.
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* s390-opc.txt: Add new arch13 instructions.
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2019-01-25 Sudakshina Das <sudi.das@arm.com>
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* aarch64-tbl.h (QL_LDST_AT): Update macro.
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(aarch64_opcode): Change encoding for stg, stzg
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st2g and st2zg.
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* aarch64-asm-2.c: Regenerated.
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* aarch64-dis-2.c: Regenerated.
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* aarch64-opc-2.c: Regenerated.
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2019-01-25 Sudakshina Das <sudi.das@arm.com>
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* aarch64-asm-2.c: Regenerated.
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* aarch64-dis-2.c: Likewise.
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* aarch64-opc-2.c: Likewise.
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* aarch64-tbl.h (aarch64_opcode): Add new stzgm.
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2019-01-25 Sudakshina Das <sudi.das@arm.com>
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Ramana Radhakrishnan <ramana.radhakrishnan@arm.com>
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* aarch64-asm.c (aarch64_ins_addr_simple_2): Remove.
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* aarch64-asm.h (ins_addr_simple_2): Likeiwse.
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* aarch64-dis.c (aarch64_ext_addr_simple_2): Likewise.
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* aarch64-dis.h (ext_addr_simple_2): Likewise.
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* aarch64-opc.c (operand_general_constraint_met_p): Remove
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case for ldstgv_indexed.
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(aarch64_print_operand): Remove case for AARCH64_OPND_ADDR_SIMPLE_2.
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* aarch64-tbl.h (struct aarch64_opcode): Remove ldgv and stgv.
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(AARCH64_OPERANDS): Remove ADDR_SIMPLE_2.
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* aarch64-asm-2.c: Regenerated.
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* aarch64-dis-2.c: Regenerated.
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* aarch64-opc-2.c: Regenerated.
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2019-01-23 Nick Clifton <nickc@redhat.com>
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* po/pt_BR.po: Updated Brazilian Portuguese translation.
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2019-01-21 Nick Clifton <nickc@redhat.com>
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* po/de.po: Updated German translation.
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* po/uk.po: Updated Ukranian translation.
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2019-01-20 Chenghua Xu <paul.hua.gm@gmail.com>
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* mips-dis.c (mips_arch_choices): Fix typo in
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gs464, gs464e and gs264e descriptors.
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2019-01-19 Nick Clifton <nickc@redhat.com>
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* configure: Regenerate.
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* po/opcodes.pot: Regenerate.
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2018-06-24 Nick Clifton <nickc@redhat.com>
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2.32 branch created.
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2019-01-09 John Darrington <john@darrington.wattle.id.au>
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* s12z-dis.c (print_insn_s12z): Do not dereference an operand
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if it is null.
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-dis.c (opr_emit_disassembly): Do not omit an index if it is
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zero.
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2019-01-09 Andrew Paprocki <andrew@ishiboo.com>
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* configure: Regenerate.
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2019-01-07 Alan Modra <amodra@gmail.com>
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* configure: Regenerate.
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* po/POTFILES.in: Regenerate.
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2019-01-03 John Darrington <john@darrington.wattle.id.au>
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* s12z-opc.c: New file.
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* s12z-opc.h: New file.
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* s12z-dis.c: Removed all code not directly related to display
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of instructions. Used the interface provided by the new files
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instead.
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* Makefile.am (TARGET_LIBOPCODES_CFILES) Add s12z-opc.c.
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* Makefile.in: Regenerate.
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* configure.ac (bfd_s12z_arch): Correct the dependencies.
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* configure: Regenerate.
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2019-01-01 Alan Modra <amodra@gmail.com>
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Update year range in copyright notice of all files.
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For older changes see ChangeLog-2018
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Copyright (C) 2019 Free Software Foundation, Inc.
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Copying and distribution of this file, with or without modification,
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are permitted in any medium without royalty provided the copyright
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notice and this notice are preserved.
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Local Variables:
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mode: change-log
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left-margin: 8
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fill-column: 74
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version-control: never
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End:
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