binutils-gdb

Commit Graph

Author	SHA1	Message	Date
Luis Machado	b5ebe8ddf9	Add missing AT tags to the ELF common header. * elf/common.h (AT_L1I_CACHESIZE, AT_L1I_CACHEGEOMETRY) (AT_L1D_CACHESIZE, AT_L1D_CACHEGEOMETRY, AT_L2_CACHESIZE) (AT_L2_CACHEGEOMETRY, AT_L3_CACHESIZE, AT_L3_CACHEGEOMETRY) (AT_MINSIGSTKSZ): New defines, imported from glibc.	6 years ago
Andrew Burgess	99e4741014	Merge upstream GCC changes for include/ and libiberty/ directories This commit pulls in the latest changes for the include/ and libiberty/ directories. The last sync was in commit `533da48302`. This commit also removes the file libiberty/rust-demangle.h, this file has been removed in upstream GCC, and should have been deleted as part of the previous sync up, which included this ChangeLog entry: 2019-11-16 Eduard-Mihai Burtescu <eddyb@lyken.rs> .... * rust-demangle.h: Remove. I've grep'd over the binutils-gdb source and can find no reference to the rust-demangle.h file, and everything seems to build fine without it, so I assume its continued existence was a mistake. include/ChangeLog: Import from gcc mainline: 2020-02-05 Andrew Burgess <andrew.burgess@embecosm.com> * hashtab.h (htab_remove_elt): Make a parameter const. (htab_remove_elt_with_hash): Likewise. libiberty/ChangeLog: * rust-demangle.h: Removed. Import from gcc mainline: 2020-02-05 Andrew Burgess <andrew.burgess@embecosm.com> * hashtab.c (htab_remove_elt): Make a parameter const. (htab_remove_elt_with_hash): Likewise. 2020-01-23 Alexandre Oliva <oliva@adacore.com> * argv.c (writeargv): Output empty args as "". 2020-01-18 Iain Sandoe <iain@sandoe.co.uk> * cp-demangle.c (cplus_demangle_operators): Add the co_await operator. * testsuite/demangle-expected: Test co_await operator mangling.	6 years ago
Nelson Chu	bd0cf5a6ba	RISC-V: Support the ISA-dependent CSR checking. According to the riscv privilege spec, some CSR are only valid when rv32 or the specific extension is set. We extend the DECLARE_CSR and DECLARE_CSR_ALIAS to record more informaton we need, and then check whether the CSR is valid according to these information. We report warning message when the CSR is invalid, so we have a choice between error and warning by --fatal-warnings option. Also, a --no-warn/-W option is used to turn the warnings off, if people don't want the warnings. gas/ * config/tc-riscv.c (enum riscv_csr_class): New enum. Used to decide whether or not this CSR is legal in the current ISA string. (struct riscv_csr_extra): New structure to hold all extra information of CSR. (riscv_init_csr_hash): New function. According to the DECLARE_CSR and DECLARE_CSR_ALIAS, insert CSR extra information into csr_extra_hash. Call hash_reg_name to insert CSR address into reg_names_hash. (md_begin): Call riscv_init_csr_hashes for each DECLARE_CSR. (reg_csr_lookup_internal, riscv_csr_class_check): New functions. Decide whether the CSR is valid according to the csr_extra_hash. (init_opcode_hash): Update 'if (hash_error != NULL)' as hash_error is not a boolean. This is same as riscv_init_csr_hash, so keep the consistent usage. * testsuite/gas/riscv/csr-dw-regnums.d: Add -march=rv32if option. * testsuite/gas/riscv/priv-reg.d: Add f-ext by -march option. * testsuite/gas/riscv/priv-reg-fail-fext.d: New testcase. The source file is `priv-reg.s`, and the ISA is rv32i without f-ext, so the f-ext CSR are not allowed. * testsuite/gas/riscv/priv-reg-fail-fext.l: Likewise. * testsuite/gas/riscv/priv-reg-fail-rv32-only.d: New testcase. The source file is `priv-reg.s`, and the ISA is rv64if, so the rv32-only CSR are not allowed. * testsuite/gas/riscv/priv-reg-fail-rv32-only.l: Likewise. include/ * opcode/riscv-opc.h: Extend DECLARE_CSR and DECLARE_CSR_ALIAS to record riscv_csr_class. opcodes/ * riscv-dis.c (print_insn_args): Updated since the DECLARE_CSR is changed. gdb/ * riscv-tdep.c: Updated since the DECLARE_CSR is changed. * riscv-tdep.h: Likewise. * features/riscv/rebuild-csr-xml.sh: Generate the 64bit-csr.xml without rv32-only CSR. * features/riscv/64bit-csr.xml: Regernated. binutils/ * dwarf.c: Updated since the DECLARE_CSR is changed.	6 years ago
Matthew Malcomson	4934a27c8c	[binutils][arm] arm support for ARMv8.m Custom Datapath Extension This patch is part of a series that adds support for the Armv8.m ARMv8.m Custom Datapath Extension to binutils. This patch introduces the Custom Instructions Class 1/2/3 (Single/ Dual, Accumulator/Non-accumulator varianats) to the arm backend. The following Custom Instructions are added: cx1, cx1a, cx1d, cx1da, cx2, cx2a, cx2d, cx2da, cx3, cx3a, cx3d, cx3da. Specification can be found at https://developer.arm.com/docs/ddi0607/latest This patch distinguishes between enabling CDE for different coprocessor numbers by defining multiple architecture flags. This means that the parsing of the architecture extension flags is kept entirely in the existing code path. We introduce a new IT block state to indicate the behaviour of these instructions. This new state allows being used in an IT block or outside an IT block, but does not allow the instruction to be used inside a VPT block. We need this since the CXA instruction versions can be used in IT blocks, but they aren't to have the conditional suffixes on them. Hence we need to mark an instruction as allowed in either position. We also need a new flag to objdump, in order to determine whether to disassemble an instruction as CDE related or not. Successfully regression tested on arm-none-eabi, and arm-wince-pe. gas/ChangeLog: 2020-02-10 Stam Markianos-Wright <stam.markianos-wright@arm.com> Matthew Malcomson <matthew.malcomson@arm.com> config/tc-arm.c (arm_ext_cde): New feature sets for each CDE coprocessor that can be enabled. (enum pred_instruction_type): New pred type. (BAD_NO_VPT): New error message. (BAD_CDE): New error message. (BAD_CDE_COPROC): New error message. (enum operand_parse_code): Add new immediate operands. (parse_operands): Account for new immediate operands. (check_cde_operand): New. (cde_coproc_enabled): New. (cde_coproc_pos): New. (cde_handle_coproc): New. (cxn_handle_predication): New. (do_custom_instruction_1): New. (do_custom_instruction_2): New. (do_custom_instruction_3): New. (do_cx1): New. (do_cx1a): New. (do_cx1d): New. (do_cx1da): New. (do_cx2): New. (do_cx2a): New. (do_cx2d): New. (do_cx2da): New. (do_cx3): New. (do_cx3a): New. (do_cx3d): New. (do_cx3da): New. (handle_pred_state): Define new IT block behaviour. (insns): Add newn CX{,d}{,a} instructions. (CDE_EXTENSIONS,armv8m_main_ext_table,armv8_1m_main_ext_table): Define new cdecp extension strings. * doc/c-arm.texi: Document new cdecp extension arguments. * testsuite/gas/arm/cde-scalar.d: New test. * testsuite/gas/arm/cde-scalar.s: New test. * testsuite/gas/arm/cde-warnings.d: New test. * testsuite/gas/arm/cde-warnings.l: New test. * testsuite/gas/arm/cde-warnings.s: New test. * testsuite/gas/arm/cde.d: New test. * testsuite/gas/arm/cde.s: New test. include/ChangeLog: 2020-02-10 Stam Markianos-Wright <stam.markianos-wright@arm.com> Matthew Malcomson <matthew.malcomson@arm.com> * opcode/arm.h (ARM_EXT2_CDE): New extension macro. (ARM_EXT2_CDE0): New extension macro. (ARM_EXT2_CDE1): New extension macro. (ARM_EXT2_CDE2): New extension macro. (ARM_EXT2_CDE3): New extension macro. (ARM_EXT2_CDE4): New extension macro. (ARM_EXT2_CDE5): New extension macro. (ARM_EXT2_CDE6): New extension macro. (ARM_EXT2_CDE7): New extension macro. opcodes/ChangeLog: 2020-02-10 Stam Markianos-Wright <stam.markianos-wright@arm.com> Matthew Malcomson <matthew.malcomson@arm.com> * arm-dis.c (struct cdeopcode32): New. (CDE_OPCODE): New macro. (cde_opcodes): New disassembly table. (regnames): New option to table. (cde_coprocs): New global variable. (print_insn_cde): New (print_insn_thumb32): Use print_insn_cde. (parse_arm_disassembler_options): Parse coprocN args.	6 years ago
Sergey Belyashov	9fc0b501af	Add support for the GBZ80 and Z80N variants of the Z80 architecture, and add DWARF debug info support to the Z80 assembler. PR 25469 bfd * archures.c: Add GBZ80 and Z80N machine values. * reloc.c: Add BFD_RELOC_Z80_16_BE. * coff-z80.c: Add support for new reloc. * coffcode.h: Add support for new machine values. * cpu-z80.c: Add support for new machine names. * elf32-z80.c: Add support for new reloc. * bfd-in2.h: Regenerate. * libbfd.h: Regenerate. binutils* readelf.c (get_machine_flags): Add support for Z80N machine number. gas * config/tc-z80.c: Add -gbz80 command line option to generate code for the GameBoy Z80. Add support for generating DWARF. * config/tc-z80.h: Add support for DWARF debug information generation. * doc/c-z80.texi: Document new command line option. * testsuite/gas/z80/gbz80_all.d: New file. * testsuite/gas/z80/gbz80_all.s: New file. * testsuite/gas/z80/z80.exp: Run the new tests. * testsuite/gas/z80/z80n_all.d: New file. * testsuite/gas/z80/z80n_all.s: New file. * testsuite/gas/z80/z80n_reloc.d: New file. include * coff/internal.h (R_IMM16BE): Define. * elf/z80.h (EF_Z80_MACH_Z80N): Define. (R_Z80_16_BE): New reloc. ld * emulparams/elf32z80.sh: Use z80 emulation. * emultempl/z80.em: Make generic to both COFF and ELF Z80 emulations. * emultempl/z80elf.em: Delete. * testsuite/ld-elf/pr22450.d: Expect to fail for the Z80. * testsuite/ld-elf/sec64k.exp: Fix Z80 assembly. * testsuite/ld-unique/pr21529.s: Avoid register name conflict. * testsuite/ld-unique/unique.s: Likewise. * testsuite/ld-unique/unique_empty.s: Likewise. * testsuite/ld-unique/unique_shared.s: Likewise. * testsuite/ld-unique/unique.d: Updated expected output. * testsuite/ld-z80/arch_z80n.d: New file. * testsuite/ld-z80/comb_arch_z80_z80n.d: New file. * testsuite/ld-z80/labels.s: Add more labels. * testsuite/ld-z80/relocs.s: Add more reloc tests. * testsuite/ld-z80/relocs_f_z80n.d: New file opcodes * z80-dis.c: Add support for GBZ80 opcodes.	6 years ago
Alan Modra	c5d7be0c97	ubsan: d30v: negation of -2147483648 include/ * opcode/d30v.h (struct pd_reg): Make value field unsigned. opcodes/ * d30v-dis.c (print_insn): Make "val" and "opnum" unsigned.	6 years ago
Jon Turney	1957ab1030	Add some new PE_IMAGE_DEBUG_TYPE values IMAGE_DEBUG_TYPE_REPRO is defined in the latest version of the PE specification [1]. The others are defined in Windows SDK headers and/or reported by DUMPBIN. [1] https://docs.microsoft.com/en-us/windows/win32/debug/pe-format bfd/ChangeLog: 2020-01-16 Jon Turney <jon.turney@dronecode.org.uk> * peXXigen.c (debug_type_names): Add names for new debug data type values. include/ChangeLog: 2020-01-16 Jon Turney <jon.turney@dronecode.org.uk> * coff/internal.h (PE_IMAGE_DEBUG_TYPE_VC_FEATURE) (PE_IMAGE_DEBUG_TYPE_POGO, PE_IMAGE_DEBUG_TYPE_ILTCG) (PE_IMAGE_DEBUG_TYPE_MPX, PE_IMAGE_DEBUG_TYPE_REPRO): Add.	6 years ago
Nick Clifton	ae77468624	Add markers for 2.34 branch to the NEWS files and ChangeLogs.	6 years ago
Nick Clifton	533da48302	Update libiberty sources with changes in the gcc mainline. +2020-01-01 Jakub Jelinek <jakub@redhat.com> + + Update copyright years. + +2019-12-06 Tim Ruehsen <tim.ruehsen@gmx.de> + + * make-relative-prefix.c (split_directories): + Return early on empty 'name' + +2019-11-16 Tim Ruehsen <tim.ruehsen@gmx.de> + + * cp-demangle.c (d_print_init): Remove const from 4th param. + (cplus_demangle_fill_name): Initialize d->d_counting. + (cplus_demangle_fill_extended_operator): Likewise. + (cplus_demangle_fill_ctor): Likewise. + (cplus_demangle_fill_dtor): Likewise. + (d_make_empty): Likewise. + (d_count_templates_scopes): Remobe const from 3rd param, + Return on dc->d_counting > 1, + Increment dc->d_counting. + * cp-demint.c (cplus_demangle_fill_component): Initialize d->d_counting. + (cplus_demangle_fill_builtin_type): Likewise. + (cplus_demangle_fill_operator): Likewise. + +2019-11-16 Eduard-Mihai Burtescu <eddyb@lyken.rs> + + * cplus-dem.c (cplus_demangle): Use rust_demangle directly. + (rust_demangle): Remove. + * rust-demangle.c (is_prefixed_hash): Rename to is_legacy_prefixed_hash. + (parse_lower_hex_nibble): Rename to decode_lower_hex_nibble. + (parse_legacy_escape): Rename to decode_legacy_escape. + (rust_is_mangled): Remove. + (struct rust_demangler): Add. + (peek): Add. + (next): Add. + (struct rust_mangled_ident): Add. + (parse_ident): Add. + (rust_demangle_sym): Remove. + (print_str): Add. + (PRINT): Add. + (print_ident): Add. + (rust_demangle_callback): Add. + (struct str_buf): Add. + (str_buf_reserve): Add. + (str_buf_append): Add. + (str_buf_demangle_callback): Add. + (rust_demangle): Add. + * rust-demangle.h: Remove. + +2019-11-15 Miguel Saldivar <saldivarcher@gmail.com> + + * testsuite/demangle-expected: Fix test. + +2019-11-04 Kamlesh Kumar <kamleshbhalui@gmail.com> + + * cp-demangle.c (d_expr_primary): Handle + nullptr demangling. + * testsuite/demangle-expected: Added test. + +2019-10-29 Paul Pluzhnikov <ppluzhnikov@google.com> + + * cp-demangle.c (d_number): Avoid signed int overflow. + +2019-10-28 Miguel Saldivar <saldivarcher@gmail.com> + + * cp-demangle.c (d_print_mod): Add a space before printing `complex` + and `imaginary`, as opposed to after. + * testsuite/demangle-expected: Adjust test. + +2019-10-03 Eduard-Mihai Burtescu <eddyb@lyken.rs> + + * rust-demangle.c (looks_like_rust): Remove. + (rust_is_mangled): Don't check escapes. + (is_prefixed_hash): Allow 0-9a-f permutations. + (rust_demangle_sym): Don't bail on unknown escapes. + * testsuite/rust-demangle-expected: Update 'main::$99$' test. + +2019-09-03 Eduard-Mihai Burtescu <eddyb@lyken.rs> + + * rust-demangle.c (unescape): Remove. + (parse_lower_hex_nibble): New function. + (parse_legacy_escape): New function. + (is_prefixed_hash): Use parse_lower_hex_nibble. + (looks_like_rust): Use parse_legacy_escape. + (rust_demangle_sym): Use parse_legacy_escape. + * testsuite/rust-demangle-expected: Add 'llv$u6d$' test. + +2019-08-27 Martin Liska <mliska@suse.cz> + + PR lto/91478 + * simple-object-elf.c (simple_object_elf_copy_lto_debug_sections): + First find a WEAK HIDDEN symbol in symbol table that will be + preserved. Later, use the symbol name for all removed symbols. + +2019-08-12 Martin Liska <mliska@suse.cz> + + * Makefile.in: Add filedescriptor.c. + * filedescriptor.c: New file. + * lrealpath.c (is_valid_fd): Remove. diff --git a/libiberty/Makefile.in b/libiberty/Makefile.in index 0be45b4ae8..fe738d0db4 100644 --- a/libiberty/Makefile.in +++ b/libiberty/Makefile.in @@ -1,7 +1,7 @@ # Makefile for the libiberty library. # Originally written by K. Richard Pixley <rich@cygnus.com>. # -# Copyright (C) 1990-2019 Free Software Foundation, Inc. +# Copyright (C) 1990-2020 Free Software Foundation, Inc. # # This file is part of the libiberty library. # Libiberty is free software; you can redistribute it and/or @@ -127,7 +127,7 @@ CFILES = alloca.c argv.c asprintf.c atexit.c \ calloc.c choose-temp.c clock.c concat.c cp-demangle.c \ cp-demint.c cplus-dem.c crc32.c \ d-demangle.c dwarfnames.c dyn-string.c \ - fdmatch.c ffs.c fibheap.c filename_cmp.c floatformat.c \ + fdmatch.c ffs.c fibheap.c filedescriptor.c filename_cmp.c floatformat.c \ fnmatch.c fopen_unlocked.c \ getcwd.c getopt.c getopt1.c getpagesize.c getpwd.c getruntime.c \ gettimeofday.c \ @@ -171,6 +171,7 @@ REQUIRED_OFILES = \ ./cp-demint.$(objext) ./crc32.$(objext) ./d-demangle.$(objext) \ ./dwarfnames.$(objext) ./dyn-string.$(objext) \ ./fdmatch.$(objext) ./fibheap.$(objext) \ + ./filedescriptor.$(objext) \ ./filename_cmp.$(objext) ./floatformat.$(objext) \ ./fnmatch.$(objext) ./fopen_unlocked.$(objext) \ ./getopt.$(objext) ./getopt1.$(objext) ./getpwd.$(objext) \ @@ -756,6 +757,17 @@ $(CONFIGURED_OFILES): stamp-picdir stamp-noasandir else true; fi $(COMPILE.c) $(srcdir)/fibheap.c $(OUTPUT_OPTION) +./filedescriptor.$(objext): $(srcdir)/filedescriptor.c config.h $(INCDIR)/ansidecl.h \ + $(INCDIR)/libiberty.h + if [ x"$(PICFLAG)" != x ]; then \ + $(COMPILE.c) $(PICFLAG) $(srcdir)/filedescriptor.c -o pic/$@; \ + else true; fi + if [ x"$(NOASANFLAG)" != x ]; then \ + $(COMPILE.c) $(PICFLAG) $(NOASANFLAG) $(srcdir)/filedescriptor.c -o noasan/$@; \ + else true; fi + $(COMPILE.c) $(srcdir)/filedescriptor.c $(OUTPUT_OPTION) + + ./filename_cmp.$(objext): $(srcdir)/filename_cmp.c config.h $(INCDIR)/ansidecl.h \ $(INCDIR)/filenames.h $(INCDIR)/hashtab.h \ $(INCDIR)/safe-ctype.h diff --git a/libiberty/_doprnt.c b/libiberty/_doprnt.c index d44dc415ed..a739f4304f 100644 --- a/libiberty/_doprnt.c +++ b/libiberty/_doprnt.c @@ -1,5 +1,5 @@ /* Provide a version of _doprnt in terms of fprintf. - Copyright (C) 1998-2019 Free Software Foundation, Inc. + Copyright (C) 1998-2020 Free Software Foundation, Inc. Contributed by Kaveh Ghazi (ghazi@caip.rutgers.edu) 3/29/98 This program is free software; you can redistribute it and/or modify it diff --git a/libiberty/argv.c b/libiberty/argv.c index 6444896f99..8c9794db6a 100644 --- a/libiberty/argv.c +++ b/libiberty/argv.c @@ -1,5 +1,5 @@ /* Create and destroy argument vectors (argv's) - Copyright (C) 1992-2019 Free Software Foundation, Inc. + Copyright (C) 1992-2020 Free Software Foundation, Inc. Written by Fred Fish @ Cygnus Support This file is part of the libiberty library. diff --git a/libiberty/asprintf.c b/libiberty/asprintf.c index 5718682f69..6e38e2234d 100644 --- a/libiberty/asprintf.c +++ b/libiberty/asprintf.c @@ -1,6 +1,6 @@ /* Like sprintf but provides a pointer to malloc'd storage, which must be freed by the caller. - Copyright (C) 1997-2019 Free Software Foundation, Inc. + Copyright (C) 1997-2020 Free Software Foundation, Inc. Contributed by Cygnus Solutions. This file is part of the libiberty library. diff --git a/libiberty/choose-temp.c b/libiberty/choose-temp.c index 72c1b710bd..49a2faaa51 100644 --- a/libiberty/choose-temp.c +++ b/libiberty/choose-temp.c @@ -1,5 +1,5 @@ /* Utility to pick a temporary filename prefix. - Copyright (C) 1996-2019 Free Software Foundation, Inc. + Copyright (C) 1996-2020 Free Software Foundation, Inc. This file is part of the libiberty library. Libiberty is free software; you can redistribute it and/or diff --git a/libiberty/clock.c b/libiberty/clock.c index a3730714bd..0de74657d0 100644 --- a/libiberty/clock.c +++ b/libiberty/clock.c @@ -1,5 +1,5 @@ /* ANSI-compatible clock function. - Copyright (C) 1994-2019 Free Software Foundation, Inc. + Copyright (C) 1994-2020 Free Software Foundation, Inc. This file is part of the libiberty library. This library is free software; you can redistribute it and/or modify it under the diff --git	6 years ago
Andre Vieira	2da2eaf4ce	[binutils][arm] PR25376 Change MVE into a CORE_HIGH feature This patch moves MVE feature bits into the CORE_HIGH section. This makes sure .fpu and -mfpu does not reset the bits set by MVE. This is important because .fpu has no option to "set" these same bits and thus, mimic'ing GCC, we choose to define MVE as an architecture extension rather than put it together with other the legacy fpu features. This will enable the following behavior: .arch armv8.1-m.main .arch mve .fpu fpv5-sp-d16 #does not disable mve. vadd.i32 q0, q1, q2 This patch also makes sure MVE is not taken into account during auto-detect. This was already the case, but because we moved the MVE bits to the architecture feature space we must make sure ARM_ANY does not include MVE. gas/ChangeLog: 2020-01-16 Andre Vieira <andre.simoesdiasvieira@arm.com> PR 25376 * config/tc-arm.c (mve_ext, mve_fp_ext): Use CORE_HIGH. (armv8_1m_main_ext_table): Use CORE_HIGH for mve. * testsuite/arm/armv8_1-m-fpu-mve-1.s: New. * testsuite/arm/armv8_1-m-fpu-mve-1.d: New. * testsuite/arm/armv8_1-m-fpu-mve-2.s: New. * testsuite/arm/armv8_1-m-fpu-mve-2.d: New. include/ChangeLog: 2020-01-16 Andre Vieira <andre.simoesdiasvieira@arm.com> PR 25376 * opcodes/arm.h (FPU_MVE, FPU_MVE_FPU): Move these features to... (ARM_EXT2_MVE, ARM_EXT2_MVE_FP): ... the CORE_HIGH space. (ARM_ANY): Redefine to not include any MVE bits. (ARM_FEATURE_ALL): Removed. opcodes/ChangeLog: 2020-01-16 Andre Vieira <andre.simoesdiasvieira@arm.com> PR 25376 * opcodes/arm-dis.c (coprocessor_opcodes): Use CORE_HIGH for MVE bits. (neon_opcodes): Likewise. (select_arm_features): Make sure we enable MVE bits when selecting armv8.1-m.main. Make sure we do not enable MVE bits when not selecting any architecture.	6 years ago
Jozef Lawrynowicz	131cb553d6	MSP430: Fix relocation overflow when using #lo(EXP) macro gas/ChangeLog: 2020-01-15 Jozef Lawrynowicz <jozef.l@mittosystems.com> * config/tc-msp430.c (CHECK_RELOC_MSP430): Always generate 430X relocations when the target is 430X, except when extracting part of an expression. (msp430_srcoperand): Adjust comment. Initialize the expp member of the msp430_operand_s struct as appropriate. (msp430_dstoperand): Likewise. * testsuite/gas/msp430/msp430.exp: Run new test. * testsuite/gas/msp430/reloc-lo-430x.d: New test. * testsuite/gas/msp430/reloc-lo-430x.s: New test. include/ChangeLog: 2020-01-15 Jozef Lawrynowicz <jozef.l@mittosystems.com> * opcode/msp430.h (enum msp430_expp_e): New. (struct msp430_operand_s): Add expp member to struct. ld/ChangeLog: 2020-01-15 Jozef Lawrynowicz <jozef.l@mittosystems.com> * testsuite/ld-msp430-elf/msp430-elf.exp: Run new test. * testsuite/ld-msp430-elf/reloc-lo-430x.s: New test.	6 years ago
Claudiu Zissulescu	39fe16e078	[ARC][committed] Update ARC cpu list include/ xxxx-xx-xx Claudiu Zissulescu <claziss@synopsys.com> * elf/arc-cpu.def: Update ARC cpu list.	6 years ago
Alan Modra	5496abe1c5	tic4x: sign extension using shifts Don't do that. Especially don't use shift counts that assume the type being shifted is 32 bits when the type is long/unsigned long. Also reverts part of a change I made on 2019-12-11 to tic4x_print_register that on closer inspection turns out to be unnecessary. include/ * opcode/tic4x.h (EXTR): Delete. (EXTRU, EXTRS, INSERTU, INSERTS): Rewrite without zero/sign extension using shifts. Do trim INSERTU value to specified bitfield. opcodes/ * tic4x-dis.c (tic4x_print_register): Remove dead code. gas/ * config/tc-tic4x.c (tic4x_operands_match): Correct tic3x trap insertion.	6 years ago
Alan Modra	8948cc6971	ubsan: spu: left shift of negative value Also fixes a real bug. The DECODE_INSN_I9a and DECODE_INSN_I9b both use UNSIGNED_EXTRACT for 7 low bits of the result, but this was an unsigned value due to "insn" being unsigned. DECODE_INSN_I9* is therefore unsigned too, leading to a zero extension in an expression using a bfd_vma if bfd_vma is 64 bits. * opcode/spu.h: Formatting. (UNSIGNED_EXTRACT): Use 1u. (SIGNED_EXTRACT): Don't sign extend with shifts. (DECODE_INSN_I9a, DECODE_INSN_I9b): Avoid left shift of signed value. Keep result signed. (DECODE_INSN_U9a, DECODE_INSN_U9b): Delete.	6 years ago
Shahab Vahedi	bb82aefe17	[ARC] Add finer details for LLOCK and SCOND This patch changes the "class" of LLOCK/SCOND from "MEMORY" to "LLOCK/SCOND" respectively. Moreover, it corrects the "data_size_mode". These changes are necessary for GDB's atmoic sequence handler. Signed-off-by: Shahab Vahedi <shahab@synopsys.com>	6 years ago
Sergey Belyashov	6655dba246	Add support for the GBZ80, Z180, and eZ80 variants of the Z80 architecure. Add an ELF based target for these as well. PR 25224 bfd * Makefile.am: Add z80-elf target support. * configure.ac: Likewise. * targets.c: Likewise. * config.bfd: Add z80-elf target support and new arches: ez80 and z180. * elf32-z80.c: New file. * archures.c: Add new z80 architectures: eZ80 and Z180. * coffcode.h: Likewise. * cpu-z80.c: Likewise. * bfd-in2.h: Likewise plus additional Z80 relocations. * coff-z80.c: Add new relocations for Z80 target and local label check. gas * config/tc-z80.c: Add new architectures: Z180 and eZ80. Add support for assembler code generated by SDCC. Add new relocation types. Add z80-elf target support. * config/tc-z80.h: Add z80-elf target support. Enable dollar local labels. Local labels starts from ".L". * testsuite/gas/all/fwdexp.d: Fix failure due to symbol conflict. * testsuite/gas/all/fwdexp.s: Likewise. * testsuite/gas/z80/suffix.d: Fix failure on ELF target. * testsuite/gas/z80/z80.exp: Add new tests * testsuite/gas/z80/dollar.d: New file. * testsuite/gas/z80/dollar.s: New file. * testsuite/gas/z80/ez80_adl_all.d: New file. * testsuite/gas/z80/ez80_adl_all.s: New file. * testsuite/gas/z80/ez80_adl_suf.d: New file. * testsuite/gas/z80/ez80_isuf.s: New file. * testsuite/gas/z80/ez80_z80_all.d: New file. * testsuite/gas/z80/ez80_z80_all.s: New file. * testsuite/gas/z80/ez80_z80_suf.d: New file. * testsuite/gas/z80/r800_extra.d: New file. * testsuite/gas/z80/r800_extra.s: New file. * testsuite/gas/z80/r800_ii8.d: New file. * testsuite/gas/z80/r800_z80_doc.d: New file. * testsuite/gas/z80/z180.d: New file. * testsuite/gas/z80/z180.s: New file. * testsuite/gas/z80/z180_z80_doc.d: New file. * testsuite/gas/z80/z80_doc.d: New file. * testsuite/gas/z80/z80_doc.s: New file. * testsuite/gas/z80/z80_ii8.d: New file. * testsuite/gas/z80/z80_ii8.s: New file. * testsuite/gas/z80/z80_in_f_c.d: New file. * testsuite/gas/z80/z80_in_f_c.s: New file. * testsuite/gas/z80/z80_op_ii_ld.d: New file. * testsuite/gas/z80/z80_op_ii_ld.s: New file. * testsuite/gas/z80/z80_out_c_0.d: New file. * testsuite/gas/z80/z80_out_c_0.s: New file. * testsuite/gas/z80/z80_reloc.d: New file. * testsuite/gas/z80/z80_reloc.s: New file. * testsuite/gas/z80/z80_sli.d: New file. * testsuite/gas/z80/z80_sli.s: New file. ld * Makefile.am: Add new target z80-elf * configure.tgt: Likewise. * emultempl/z80.em: Add support for eZ80 and Z180 architectures. * emulparams/elf32z80.sh: New file. * emultempl/z80elf.em: Likewise. * testsuite/ld-z80/arch_ez80_adl.d: Likewise. * testsuite/ld-z80/arch_ez80_z80.d: Likewise. * testsuite/ld-z80/arch_r800.d: Likewise. * testsuite/ld-z80/arch_z180.d: Likewise. * testsuite/ld-z80/arch_z80.d: Likewise. * testsuite/ld-z80/comb_arch_ez80_z80.d: Likewise. * testsuite/ld-z80/comb_arch_z180.d: Likewise. * testsuite/ld-z80/labels.s: Likewise. * testsuite/ld-z80/relocs.s: Likewise. * testsuite/ld-z80/relocs_b_ez80.d: Likewise. * testsuite/ld-z80/relocs_b_z80.d: Likewise. * testsuite/ld-z80/relocs_f_z80.d: Likewise. * testsuite/ld-z80/z80.exp: Likewise. opcodes * z80-dis.c: Add support for eZ80 and Z80 instructions.	6 years ago
Nick Clifton	d73b58f4b1	Enable building the s12z target on Solaris hosts where REG_Y is defined in system header files. * opcode/s12z.h: Undef REG_Y.	6 years ago
Alan Modra	b14ce8bfe1	Re: Update year range in copyright notice of binutils files Add the ChangeLog entry.	6 years ago
Alan Modra	0b11474080	ChangeLog rotation	6 years ago
Alan Modra	5b660084e2	Remove tic80 support This is one way of fixing ubsan bug reports, just delete the code. The assembler support was removed back in 2005 along with other non-BFD assemblers, but somehow the remainder of the port stayed in. bfd/ * coff-tic80.c: Delete file. * cpu-tic80.c: Delete file. * archures.c: Remove tic80 support. * coffcode.h: Likewise. * coffswap.h: Likewise. * targets.c: Likewise. * config.bfd: Likewise. * configure.ac: Likewise. * Makefile.am: Likewise. * Makefile.in: Regenerate. * bfd-in2.h: Regenerate. * configure: Regenerate. * po/SRC-POTFILES.in: Regenerate. binutils/ * testsuite/binutils-all/objcopy.exp: Remove tic80 support. * testsuite/binutils-all/objdump.exp: Likewise. gas/ * doc/as.texi: Remove mention of tic80. include/ * coff/tic80.h: Delete file. * opcode/tic80.h: Delete file. ld/ * emulparams/tic80coff.sh: Delete file. * scripttempl/tic80coff.sc: Delete file. * configure.tgt: Remove tic80 support. * Makefile.am: Likewise. * Makefile.in: Regenerate. * po/BLD-POTFILES.in: Regenerate. opcodes/ * tic80-dis.c: Delete file. * tic80-opc.c: Delete file. * disassemble.c: Remove tic80 support. * disassemble.h: Likewise. * Makefile.am: Likewise. * configure.ac: Likewise. * Makefile.in: Regenerate. * configure: Regenerate. * po/POTFILES.in: Regenerate.	6 years ago
Alan Modra	36bd8ea7f0	ubsan: crx: left shift cannot be represented in type 'int' The ubsan complaint is fixed by the SBM change, with similar possible complaints fixed by the EXTRACT change. The rest is just cleanup. include/ * opcode/crx.h (inst <match>): Make unsigned int. opcodes/ * crx-dis.c (EXTRACT, SBM): Avoid signed overflow. (get_number_of_operands, getargtype, getbits, getregname), (getcopregname, getprocregname, gettrapstring, getcinvstring), (getregliststring, get_word_at_PC, get_words_at_PC, build_mask), (powerof2, match_opcode, make_instruction, print_arguments), (print_arg): Delete forward declarations, moving static to.. (getregname, getcopregname, getregliststring): ..these definitions. (build_mask): Return unsigned int mask. (match_opcode): Use unsigned int vars.	6 years ago
Alan Modra	4bdb25fe69	ubsan: nds32: left shift cannot be represented in type 'int' Note that using 1u in N32_BIT makes all of N32_BIT, __MASK, __MF, __GF and __SEXT evaluate as unsigned int (the latter three when when their v arg is int or smaller). This would be a problem if assigning the result to a bfd_vma, long, or other type wider than an int since the __SEXT result would be zero extended to the wider type. Fortunately nds32 target code doesn't use wider types unnecessarily. include/ * opcode/nds32.h (N32_BIT): Define using 1u. (__SEXT): Use __MASK and N32_BIT. (N32_IMMS): Remove duplicate mask. opcodes/ * nds32-dis.c (print_insn16, print_insn32): Remove forward decls. (struct objdump_disasm_info): Delete. (nds32_parse_audio_ext, nds32_parse_opcode): Cast result of N32_IMMS to unsigned before shifting left.	6 years ago
Luis Machado	39f34d7b64	Fix unused function error Attempting to build GDB in Ubuntu 16.04.6 LTS on x86_64, I ran into warnings that caused the build to fail: binutils-gdb/gdb/gdbsupport/safe-strerror.c:44:1: error: ‘char* select_strerror_r(char, char)’ defined but not used [-Werror=unused-function] select_strerror_r (char res, char ) The diagnostic macro DIAGNOSTIC_IGNORE_UNUSED_FUNCTION seems to expand correctly to its respective pragma, but this doesn't seem to have an effect on the warning. I tried to use the pragma explicitly and got the same result. ATTRIBUTE_UNUSED works fine in this case if you put it in both functions, which should fix warnings for both gdb and gdbserver builds. The compiler version is gcc (Ubuntu 5.4.0-6ubuntu1~16.04.11) 5.4.0 20160609. This is likely the result of PR64079 in GCC, which was fixed by commit 9e96f1e1b9731c4e1ef4fbbbf0997319973f0537. To prevent other developers from attempting to use this macro, only to get confused by it not working as expected, it seems better to not define this particular macro. gdb/ChangeLog: 2019-12-12 Luis Machado <luis.machado@linaro.org> * gdbsupport/safe-strerror.c: Don't include diagnostics.h. (select_strerror_r): Use ATTRIBUTE_UNUSED instead of the diagnostics macros. include/ChangeLog: 2019-12-12 Luis Machado <luis.machado@linaro.org> * diagnostics.h (DIAGNOSTIC_IGNORE_UNUSED_FUNCTION). Remove definitions. Change-Id: Iad6123d61d76d111e3ef8d24aa8c60112304c749	6 years ago
Alan Modra	13c9c48599	bfd signed overflow fixes Aimed at quietening ubsan. include/ * opcode/mmix.h (PUSHGO_INSN_BYTE): Make unsigned. (GO_INSN_BYTE, SETL_INSN_BYTE, INCML_INSN_BYTE, INCMH_INSN_BYTE), (INCH_INSN_BYTE, SWYM_INSN_BYTE, JMP_INSN_BYTE): Likewise. bfd/ * elf32-rx.c (elf32_rx_relax_section): Avoid signed overflow. * libaout.h (N_SET_INFO, N_SET_FLAGS): Likewise. * netbsd.h (write_object_contents): Likewise. * elf32-arm.c (bfd_elf32_arm_vfp11_erratum_scan): Likewise. * libhppa.h (HPPA_R_CONSTANT): Don't signed extend with shifts. (stm32l4xx_create_replacing_stub_vldm): Don't truncate high bits with shifts. * elf32-nds32.h (R_NDS32_RELAX_ENTRY_DISABLE_RELAX_FLAG): Define using 1u shifted left. Ditto for other macros. * mmo.c (LOP): Make unsigned.	6 years ago
Alan Modra	76bba5ee85	ubsan: left shift of cannot be represented in type 'int' * dis-asm.h (INSN_HAS_RELOC, DISASSEMBLE_DATA), (USER_SPECIFIED_MACHINE_TYPE, WIDE_OUTPUT): Make unsigned. * opcode/tic80.h (TIC80_OPERAND_*): Likewise.	6 years ago
Alan Modra	20135676fc	PR24960, Memory leak from disassembler PR 24960 include/ * dis-asm.h (disassemble_free_target): Declare. opcodes/ * disassemble.c (disassemble_free_target): New function. binutils/ * objdump.c (disassemble_data): Call disassemble_free_target.	6 years ago
Alan Modra	103ebbc35c	Use disassemble_info.private_data in place of insn_sets No cgen target uses private_data. This patch removes a disassemble_info field that is only used by cgen, and instead uses private_data. It also removes a macro that is no longer used. include/ * dis-asm.h (struct disassemble_info): Delete insn_sets. (INIT_DISASSEMBLE_INFO_NO_ARCH): Don't define. opcodes/ * cgen-dis.in (print_insn_@arch@): Replace insn_sets with private_data. * disassemble.c (disassemble_init_for_target): Likewise. * bpf-dis.c: Regenerate. * epiphany-dis.c: Regenerate. * fr30-dis.c: Regenerate. * frv-dis.c: Regenerate. * ip2k-dis.c: Regenerate. * iq2000-dis.c: Regenerate. * lm32-dis.c: Regenerate. * m32c-dis.c: Regenerate. * m32r-dis.c: Regenerate. * mep-dis.c: Regenerate. * mt-dis.c: Regenerate. * or1k-dis.c: Regenerate. * xc16x-dis.c: Regenerate. * xstormy16-dis.c: Regenerate.	6 years ago
Jan Beulich	2dc4b12fcd	Arm64: simplify Crypto arch extension handling This, at the assembler level, is just a "brace" feature covering both AES and SHA2. Hence there's no need for it to have a separate feature flag, freeing up a bit for future re-use. Along these lines there are also a number of dead definitions/variables in the opcode table file.	6 years ago
Christian Eggers	618265039f	Introduce new section flag: SEC_ELF_OCTETS All symbols, sizes and relocations in this section are octets instead of bytes. Required for DWARF debug sections as DWARF information is organized in octets, not bytes. bfd/ * section.c (struct bfd_section): New flag SEC_ELF_OCTETS. * archures.c (bfd_octets_per_byte): New parameter sec. If section is not NULL and SEC_ELF_OCTETS is set, one octet es returned [ELF targets only]. * bfd.c (bfd_get_section_limit): Provide section parameter to bfd_octets_per_byte. * bfd-in2.h: regenerate. * binary.c (binary_set_section_contents): Move call to bfd_octets_per_byte into section loop. Provide section parameter to bfd_octets_per_byte. * coff-arm.c (coff_arm_reloc): Provide section parameter to bfd_octets_per_byte. * coff-i386.c (coff_i386_reloc): likewise. * coff-mips.c (mips_reflo_reloc): likewise. * coff-x86_64.c (coff_amd64_reloc): likewise. * cofflink.c (_bfd_coff_link_input_bfd): likewise. (_bfd_coff_reloc_link_order): likewise. * elf.c (_bfd_elf_section_offset): likewise. (_bfd_elf_make_section_from_shdr): likewise. Set SEC_ELF_OCTETS for sections with names .gnu.build.attributes, .debug, .zdebug and .note.gnu. elf32-msp430.c (rl78_sym_diff_handler): Provide section parameter to bfd_octets_per_byte. * elf32-nds.c (nds32_elf_get_relocated_section_contents): likewise. * elf32-ppc.c (ppc_elf_addr16_ha_reloc): likewise. * elf32-pru.c (pru_elf32_do_ldi32_relocate): likewise. * elf32-s12z.c (opru18_reloc): likewise. * elf32-sh.c (sh_elf_reloc): likewise. * elf32-spu.c (spu_elf_rel9): likewise. * elf32-xtensa.c (bfd_elf_xtensa_reloc): likewise * elf64-ppc.c (ppc64_elf_brtaken_reloc): likewise. (ppc64_elf_addr16_ha_reloc): likewise. (ppc64_elf_toc64_reloc): likewise. * elflink.c (bfd_elf_final_link): likewise. (bfd_elf_perform_complex_relocation): likewise. (elf_fixup_link_order): likewise. (elf_link_input_bfd): likewise. (elf_link_sort_relocs): likewise. (elf_reloc_link_order): likewise. (resolve_section): likewise. * linker.c (_bfd_generic_reloc_link_order): likewise. (bfd_generic_define_common_symbol): likewise. (default_data_link_order): likewise. (default_indirect_link_order): likewise. * srec.c (srec_set_section_contents): likewise. (srec_write_section): likewise. * syms.c (_bfd_stab_section_find_nearest_line): likewise. * reloc.c (_bfd_final_link_relocate): likewise. (bfd_generic_get_relocated_section_contents): likewise. (bfd_install_relocation): likewise. For section which have SEC_ELF_OCTETS set, multiply output_base and output_offset with bfd_octets_per_byte. (bfd_perform_relocation): likewise. include/ * coff/ti.h (GET_SCNHDR_SIZE, PUT_SCNHDR_SIZE, GET_SCN_SCNLEN), (PUT_SCN_SCNLEN): Adjust bfd_octets_per_byte calls. binutils/ * objdump.c (disassemble_data): Provide section parameter to bfd_octets_per_byte. (dump_section): likewise (dump_section_header): likewise. Show SEC_ELF_OCTETS flag if set. gas/ * as.h: Define SEC_OCTETS as SEC_ELF_OCTETS if OBJ_ELF. * dwarf2dbg.c: (dwarf2_finish): Set section flag SEC_OCTETS for .debug_line, .debug_info, .debug_abbrev, .debug_aranges, .debug_str and .debug_ranges sections. * write.c (maybe_generate_build_notes): Set section flag SEC_OCTETS for .gnu.build.attributes section. * frags.c (frag_now_fix): Don't divide by OCTETS_PER_BYTE if SEC_OCTETS is set. * symbols.c (resolve_symbol_value): Likewise. ld/ * ldexp.c (fold_name): Provide section parameter to bfd_octets_per_byte. * ldlang (init_opb): New argument s. Set opb_shift to 0 if SEC_ELF_OCTETS for the current section is set. (print_input_section): Pass current section to init_opb. (print_data_statement,print_reloc_statement, print_padding_statement): Likewise. (lang_check_section_addresses): Call init_opb for each section. (lang_size_sections_1,lang_size_sections_1, lang_do_assignments_1): Likewise. (lang_process): Pass NULL to init_opb.	6 years ago
Mihail Ionescu	8b301fbb61	Arm: Change CRC from fpu feature to archititectural extension This patch changes the CRC extension to use the core feature bits instead of the coproc/fpu feature bits. CRC is not an fpu feature and it causes issues with the new fpu reset patch (`f439988037`). CRC can be set using the '.arch_extension' directive, which sets bits in the coproc bitfield. When a '.fpu' directive is encountered, the CRC feature bit gets removed and there is no way to set it back using '.fpu'. With this patch, CRC will be marked in the feature core bits, which prevents it from getting removed when setting/changing the fpu options. gas/ChangeLog: * config/tc-arm.c (arm_ext_crc): New. (crc_ext_armv8): Remove. (insns): Rename crc_ext_armv8 to arm_ext_crc. (arm_cpus): Replace CRC_EXT_ARMV8 with ARM_EXT2_CRC. (armv8a_ext_table, armv8r_ext_table, arm_option_extension_value_table): Redefine the crc extension in terms of ARM_EXT2_CRC. * gas/testsuite/gas/arm/crc-ext.s: New. * gas/testsuite/gas/arm/crc-ext.d: New. include/ChangeLog: * opcode/arm.h (ARM_EXT2_CRC): New extension feature to replace CRC_EXT_ARMV8. (CRC_EXT_ARMV8): Remove and mark bit as unused. (ARM_ARCH_V8A_CRC, ARM_ARCH_V8_1A, ARM_ARCH_V8_2A, ARM_ARCH_V8_3A, ARM_ARCH_V8_4A, ARM_ARCH_V8_5A, ARM_ARCH_V8_6A): Redefine using ARM_EXT2_CRC instead of CRC_EXT_ARMV8. opcodes/ChangeLog: * opcodes/arm-dis.c (arm_opcodes, thumb32_opcodes): Change the coproc CRC conditions to use the extension feature set, second word, base on ARM_EXT2_CRC.	6 years ago
Andrew Burgess	66f8b2cbbb	gas: Add --gdwarf-cie-version command line flag Add a flag to control the version of CIE that is generated. By default gas produces CIE version 1, and this continues to be the default after this patch. However, a user can now provide --gdwarf-cie-version=NUMBER to switch to either version 3 or version 4 of CIE, version 2 was never released, and so causes an error as does any number less than 1 or greater than 4. Producing version 4 CIE requires two new fields to be added to the CIE, an address size field, and an segment selector field. For a flat address space the DWARF specification indicates that the segment selector should be 0, and the address size fields just contains the address size in bytes. For now we support 4 or 8 byte addresses, and the segment selector is always produced as 0. At some future time we might need to allow targets to override this. gas/ChangeLog: * as.c (parse_args): Parse --gdwarf-cie-version option. (flag_dwarf_cie_version): New variable. * as.h (flag_dwarf_cie_version): Declare. * dw2gencfi.c (output_cie): Switch from DW_CIE_VERSION to flag_dwarf_cie_version. * doc/as.texi (Overview): Document --gdwarf-cie-version. * NEWS: Likewise. * testsuite/gas/cfi/cfi.exp: Add new tests. * testsuite/gas/cfi/cie-version-0.d: New file. * testsuite/gas/cfi/cie-version-1.d: New file. * testsuite/gas/cfi/cie-version-2.d: New file. * testsuite/gas/cfi/cie-version-3.d: New file. * testsuite/gas/cfi/cie-version-4.d: New file. * testsuite/gas/cfi/cie-version.s: New file. include/ChangeLog: * dwarf2.h (DW_CIE_VERSION): Delete. Change-Id: I9de19461aeb8332b5a57bbfe802953d0725a7ae8	7 years ago
Matthew Malcomson	616ce08e1c	[Patch][binutils][arm] Armv8.6-A Matrix Multiply extension [9/10] Hi, This patch is part of a series that adds support for Armv8.6-A (Matrix Multiply and BFloat16 extensions) to binutils. This patch introduces the Matrix Multiply (Int8, F32, F64) extensions to the arm backend. The following Matrix Multiply instructions are added: vummla, vsmmla, vusmmla, vusdot, vsudot[1]. [1]https://developer.arm.com/docs/ddi0597/latest/simd-and-floating-point-instructions-alphabetic-order Committed on behalf of Mihail Ionescu. gas/ChangeLog: 2019-11-07 Mihail Ionescu <mihail.ionescu@arm.com> * config/tc-arm.c (arm_ext_i8mm): New feature set. (do_vusdot): New. (do_vsudot): New. (do_vsmmla): New. (do_vummla): New. (insns): Add vsmmla, vummla, vusmmla, vusdot, vsudot mnemonics. (armv86a_ext_table): Add i8mm extension. (arm_extensions): Move bf16 extension to context sensitive table. (armv82a_ext_table, armv84a_ext_table, armv85a_ext_table): Move bf16 extension to context sensitive table. (armv86a_ext_table): Add i8mm extension. * doc/c-arm.texi: Document i8mm extension. * testsuite/gas/arm/i8mm.s: New test. * testsuite/gas/arm/i8mm.d: New test. * testsuite/gas/arm/bfloat17-cmdline-bad-3.d: Update test. include/ChangeLog: 2019-11-07 Mihail Ionescu <mihail.ionescu@arm.com> * opcode/arm.h (ARM_EXT2_I8MM): New feature macro. opcodes/ChangeLog: 2019-11-07 Mihail Ionescu <mihail.ionescu@arm.com> * arm-dis.c (neon_opcodes): Add i8mm SIMD instructions. Regression tested on arm-none-eabi. Is this ok for trunk? Regards, Mihail	7 years ago
Matthew Malcomson	8382113fdb	[binutils][aarch64] Matrix Multiply extension enablement [8/X] Hi, This patch is part of a series that adds support for Armv8.6-A (Matrix Multiply and BFloat16 extensions) to binutils. This patch introduces the Matrix Multiply (Int8, F32, F64) extensions to the aarch64 backend. The following instructions are added: {s/u}mmla, usmmla, {us/su}dot, fmmla, ld1rob, ld1roh, d1row, ld1rod, uzip{1/2}, trn{1/2}. Committed on behalf of Mihail Ionescu. gas/ChangeLog: 2019-11-07 Mihail Ionescu <mihail.ionescu@arm.com> * config/tc-aarch64.c: Add new arch fetures to suppport the mm extension. (parse_operands): Add new operand. * testsuite/gas/aarch64/i8mm.s: New test. * testsuite/gas/aarch64/i8mm.d: New test. * testsuite/gas/aarch64/f32mm.s: New test. * testsuite/gas/aarch64/f32mm.d: New test. * testsuite/gas/aarch64/f64mm.s: New test. * testsuite/gas/aarch64/f64mm.d: New test. * testsuite/gas/aarch64/sve-movprfx-mm.s: New test. * testsuite/gas/aarch64/sve-movprfx-mm.d: New test. include/ChangeLog: 2019-11-07 Mihail Ionescu <mihail.ionescu@arm.com> * opcode/aarch64.h (AARCH64_FEATURE_I8MM): New. (AARCH64_FEATURE_F32MM): New. (AARCH64_FEATURE_F64MM): New. (AARCH64_OPND_SVE_ADDR_RI_S4x32): New. (enum aarch64_insn_class): Add new instruction class "aarch64_misc" for instructions that do not require special handling. opcodes/ChangeLog: 2019-11-07 Mihail Ionescu <mihail.ionescu@arm.com> * aarch64-tbl.h (aarch64_feature_i8mm_sve, aarch64_feature_f32mm_sve, aarch64_feature_f64mm_sve, aarch64_feature_i8mm, aarch64_feature_f32mm, aarch64_feature_f64mm): New feature sets. (INT8MATMUL_INSN, F64MATMUL_SVE_INSN, F64MATMUL_INSN, F32MATMUL_SVE_INSN, F32MATMUL_INSN): New macros to define matrix multiply instructions. (I8MM_SVE, F32MM_SVE, F64MM_SVE, I8MM, F32MM, F64MM): New feature set macros. (QL_MMLA64, OP_SVE_SBB): New qualifiers. (OP_SVE_QQQ): New qualifier. (INT8MATMUL_SVE_INSNC, F64MATMUL_SVE_INSNC, F32MATMUL_SVE_INSNC): New feature set for bfloat16 instructions to support the movprfx constraint. (aarch64_opcode_table): Support for SVE_ADDR_RI_S4x32. (aarch64_opcode_table): Define new instructions smmla, ummla, usmmla, usdot, sudot, fmmla, ld1rob, ld1roh, ld1row, ld1rod uzip{1/2}, trn{1/2}. * aarch64-opc.c (operand_general_constraint_met_p): Handle AARCH64_OPND_SVE_ADDR_RI_S4x32. (aarch64_print_operand): Handle AARCH64_OPND_SVE_ADDR_RI_S4x32. * aarch64-dis-2.c (aarch64_opcode_lookup_1, aarch64_find_next_opcode): Account for new instructions. * opcodes/aarch64-asm-2.c (aarch64_insert_operand): Support the new S4x32 operand. * aarch64-opc-2.c (aarch64_operands): Support the new S4x32 operand. Regression tested on arm-none-eabi. Is it ok for trunk? Regards, Mihail	7 years ago
Matthew Malcomson	aab2c27d9f	[binutils][arm] BFloat16 enablement [4/X] Hi, This patch is part of a series that adds support for Armv8.6-A (Matrix Multiply and BFloat16 extensions) to binutils. This patch introduces BFloat16 instructions to the arm backend. The following BFloat16 instructions are added: vdot, vfma{l/t}, vmmla, vfmal{t/b}, vcvt, vcvt{t/b}. gas/ChangeLog: 2019-11-07 Mihail Ionescu <mihail.ionescu@arm.com> 2019-11-07 Matthew Malcomson <matthew.malcomson@arm.com> * config/tc-arm.c (arm_archs): Add armv8.6-a option. (cpu_arch_ver): Add TAG_CPU_ARCH_V8 tag for Armv8.6-a. * doc/c-arm.texi (-march): New armv8.6-a arch. * config/tc-arm.c (arm_ext_bf16): New feature set. (enum neon_el_type): Add NT_bfloat value. (B_MNEM_vfmat, B_MNEM_vfmab): New bfloat16 encoder helpers. (BAD_BF16): New message. (parse_neon_type): Add bf16 type specifier. (enum neon_type_mask): Add N_BF16 type. (type_chk_of_el_type): Account for NT_bfloat. (el_type_of_type_chk): Account for N_BF16. (neon_three_args): Split out from neon_three_same. (neon_three_same): Part split out into neon_three_args. (CVT_FLAVOUR_VAR): Add bf16_f32 cvt flavour. (do_neon_cvt_1): Account for vcvt.bf16.f32. (do_bfloat_vmla): New. (do_mve_vfma): New function to deal with the mnemonic clash between the BF16 vfmat and the MVE vfma in a VPT block with a 't'rue condition. (do_neon_cvttb_1): Account for vcvt{t,b}.bf16.f32. (do_vdot): New (do_vmmla): New (insns): Add vdot and vmmla mnemonics. (arm_extensions): Add "bf16" extension. * doc/c-arm.texi: Document "bf16" extension. * testsuite/gas/arm/attr-march-armv8_6-a.d: New test. * testsuite/gas/arm/bfloat16-bad.d: New test. * testsuite/gas/arm/bfloat16-bad.l: New test. * testsuite/gas/arm/bfloat16-bad.s: New test. * testsuite/gas/arm/bfloat16-cmdline-bad-2.d: New test. * testsuite/gas/arm/bfloat16-cmdline-bad-3.d: New test. * testsuite/gas/arm/bfloat16-cmdline-bad.d: New test. * testsuite/gas/arm/bfloat16-neon.s: New test. * testsuite/gas/arm/bfloat16-non-neon.s: New test. * testsuite/gas/arm/bfloat16-thumb-bad.d: New test. * testsuite/gas/arm/bfloat16-thumb-bad.l: New test. * testsuite/gas/arm/bfloat16-thumb.d: New test. * testsuite/gas/arm/bfloat16-vfp.d: New test. * testsuite/gas/arm/bfloat16.d: New test. * testsuite/gas/arm/bfloat16.s: New test. include/ChangeLog: 2019-11-07 Mihail Ionescu <mihail.ionescu@arm.com> 2019-11-07 Matthew Malcomson <matthew.malcomson@arm.com> * opcode/arm.h (ARM_EXT2_V8_6A, ARM_AEXT2_V8_6A, ARM_ARCH_V8_6A): New. * opcode/arm.h (ARM_EXT2_BF16): New feature macro. (ARM_AEXT2_V8_6A): Include above macro in definition. opcodes/ChangeLog: 2019-11-07 Mihail Ionescu <mihail.ionescu@arm.com> 2019-11-07 Matthew Malcomson <matthew.malcomson@arm.com> * arm-dis.c (select_arm_features): Update bfd_march_arm_8 with Armv8.6-A. (coprocessor_opcodes): Add bfloat16 vcvt{t,b}. (neon_opcodes): Add bfloat SIMD instructions. (print_insn_coprocessor): Add new control character %b to print condition code without checking cp_num. (print_insn_neon): Account for BFloat16 instructions that have no special top-byte handling. Regression tested on arm-none-eabi. Is it ok for trunk? Regards, Mihail	7 years ago
Matthew Malcomson	df6780137d	[binutils][aarch64] Bfloat16 enablement [2/X] Hi, This patch is part of a series that adds support for Armv8.6-A (Matrix Multiply and BFloat16 extensions) to binutils. This patch introduces the following BFloat16 instructions to the aarch64 backend: bfdot, bfmmla, bfcvt, bfcvtnt, bfmlal[t/b], bfcvtn2. Committed on behalf of Mihail Ionescu. gas/ChangeLog: 2019-11-07 Mihail Ionescu <mihail.ionescu@arm.com> 2019-11-07 Matthew Malcomson <matthew.malcomson@arm.com> * config/tc-aarch64.c (vectype_to_qualifier): Special case the S_2H operand qualifier. * doc/c-aarch64.texi: Document bf16 and bf16mmla4 extensions. * testsuite/gas/aarch64/bfloat16.d: New test. * testsuite/gas/aarch64/bfloat16.s: New test. * testsuite/gas/aarch64/illegal-bfloat16.d: New test. * testsuite/gas/aarch64/illegal-bfloat16.l: New test. * testsuite/gas/aarch64/illegal-bfloat16.s: New test. * testsuite/gas/aarch64/sve-bfloat-movprfx.s: New test. * testsuite/gas/aarch64/sve-bfloat-movprfx.d: New test. include/ChangeLog: 2019-11-07 Mihail Ionescu <mihail.ionescu@arm.com> 2019-11-07 Matthew Malcomson <matthew.malcomson@arm.com> * opcode/aarch64.h (AARCH64_FEATURE_BFLOAT16): New feature macros. (AARCH64_ARCH_V8_6): Include BFloat16 feature macros. (enum aarch64_opnd_qualifier): Introduce new operand qualifier AARCH64_OPND_QLF_S_2H. (enum aarch64_insn_class): Introduce new class "bfloat16". (BFLOAT16_SVE_INSNC): New feature set for bfloat16 instructions to support the movprfx constraint. opcodes/ChangeLog: 2019-11-07 Mihail Ionescu <mihail.ionescu@arm.com> 2019-11-07 Matthew Malcomson <matthew.malcomson@arm.com> * aarch64-asm.c (aarch64_ins_reglane): Use AARCH64_OPND_QLF_S_2H in reglane special case. * aarch64-dis-2.c (aarch64_opcode_lookup_1, aarch64_find_next_opcode): Account for new instructions. * aarch64-dis.c (aarch64_ext_reglane): Use AARCH64_OPND_QLF_S_2H in reglane special case. * aarch64-opc.c (struct operand_qualifier_data): Add data for new AARCH64_OPND_QLF_S_2H qualifier. * aarch64-tbl.h (QL_BFDOT QL_BFDOT64, QL_BFDOT64I, QL_BFMMLA2, QL_BFCVT64, QL_BFCVTN64, QL_BFCVTN2_64): New qualifiers. (aarch64_feature_bfloat16, aarch64_feature_bfloat16_sve, aarch64_feature_bfloat16_bfmmla4): New feature sets. (BFLOAT_SVE, BFLOAT): New feature set macros. (BFLOAT_SVE_INSN, BFLOAT_BFMMLA4_INSN, BFLOAT_INSN): New macros to define BFloat16 instructions. (aarch64_opcode_table): Define new instructions bfdot, bfmmla, bfcvt, bfcvtnt, bfdot, bfdot, bfcvtn, bfmlal[b/t] bfcvtn2, bfcvt. Regression tested on aarch64-elf. Is it ok for trunk? Regards, Mihail	7 years ago
Matthew Malcomson	8ae2d3d9ea	[gas][aarch64] Armv8.6-a option [1/X] Hi, This patch is part of a series that adds support for Armv8.6-A to binutils. This first patch adds the Armv8.6-A flag to binutils. No instructions are behind it at the moment. Commited on behalf of Mihail Ionescu. gas/ChangeLog: 2019-11-07 Mihail Ionescu <mihail.ionescu@arm.com> 2019-11-07 Matthew Malcomson <matthew.malcomson@arm.com> * config/tc-aarch64.c (armv8.6-a): New arch. * doc/c-aarch64.texi (armv8.6-a): Document new arch. include/ChangeLog: 2019-11-07 Mihail Ionescu <mihail.ionescu@arm.com> 2019-11-07 Matthew Malcomson <matthew.malcomson@arm.com> * opcode/aarch64.h (AARCH64_FEATURE_V8_6): New. (AARCH64_ARCH_V8_6): New. opcodes/ChangeLog: 2019-11-07 Mihail Ionescu <mihail.ionescu@arm.com> 2019-11-07 Matthew Malcomson <matthew.malcomson@arm.com> * aarch64-tbl.h (ARMV8_6): New macro. Is it ok for trunk? Regards, Mihail	7 years ago
Alan Modra	595d3787e9	Remove CR16C support I think it is past time to remove CR16C support. CR16C was added in 2004, and only for ld. gas and binutils support is lacking, and there have been no commits to bfd/elf32-cr16c.c other than warning fixes or global maintainers making changes to all targets. I see no maintainer listed for CR16C, and no commits from anyone at NSC supporting the target. Furthermore, at the time the CR16 support was added in 2007, config.sub was changed upstream to no longer recognise cr16c as a valid cpu. That means the CR16C ld support is only available as a secondary target by configuring with, for example, --enable-targets=all or --enable-targets=cr16c-unknown-elf. No testing of the CR16C target is possible. include/ * elf/cr16c.h: Delete. bfd/ * cpu-cr16c.c: Delete. * elf32-cr16c.c: Delete. * Makefile.am, * archures.c, * config.bfd, * configure.ac, * reloc.c, * targets.c: Remove cr16c support. * Makefile.in, * bfd-in2.h, * configure, * libbfd.h, * po/SRC-POTFILES.in: Regenerate. ld/ * emulparams/elf32cr16c.sh: Delete. * scripttempl/elf32cr16c.sc: Delete. * Makefile.am, * configure.tgt: Remove cr16c support. * NEWS: Mention removal of cr16c. * Makefile.in, * po/BLD-POTFILES.in: Regenerate.	7 years ago
Andrew Eikum	2f1575ea6f	Fix the size of the dos_message field in the internal_extra_pe_filehdr structure on hosts where sizeof(long) == 8. * coff/internal.h (struct internal_extra_pe_filehdr): Use ints instead of longs to hold dos_message.	7 years ago
Alan Modra	30fe183248	PR4499, assign file positions assumes segment offsets increasing This rewrites much of assign_file_positions_for_non_load_sections to allow objcopy and strip to handle cases like that in PR4499 where program headers were not in their usual position immediately after the ELF file header, and PT_LOAD headers were not sorted by paddr. PR 4499 include/ * elf/internal.h (struct elf_segment_map): Delete header_size. Add no_sort_lma and idx. bfd/ * elf-nacl.c (nacl_modify_segment_map): Set no_sort_lma for all PT_LOAD segments. * elf32-spu.c (spu_elf_modify_segment_map): Likewise on overlay PT_LOAD segments. * elf.c (elf_sort_segments): New function. (assign_file_positions_except_relocs): Use shortcuts to elfheader and elf_tdata. Seek to e_phoff not sizeof_ehdr to write program headers. Move PT_PHDR check.. (assign_file_positions_for_non_load_sections): ..and code setting PT_PHDR p_vaddr and p_paddr, and code setting __ehdr_start value.. (assign_file_positions_for_load_sections): ..to here. Sort PT_LOAD headers. Delete header_pad code. Use actual number of headers rather than allocated in calculating size for program headers. Don't assume program headers follow ELF file header. Simplify pt_load_count code. Only set "off" for PT_LOAD or PT_NOTE in cores. (rewrite_elf_program_header): Set p_vaddr_offset for segments that include file and program headers. (copy_elf_program_header): Likewise, replacing header_size code.	7 years ago
Alan Modra	22216541c1	PR13616, linker should pad executable sections with nops, not zeros This implements padding of orphan executable sections for PowerPC. Of course, the simple implementation of bfd_arch_ppc_nop_fill and removing the NOP definition didn't work, with powerpc64 hitting a testsuite failure linking to S-records. That's because the srec target is BFD_ENDIAN_UNKNOWN so the test of bfd_big_endian (abfd) in default_data_link_order therefore returned false, resulting in a little-endian nop pattern. The rest of the patch fixes that problem by adding a new field to bfd_link_info that can be used to determine actual endianness on targets like srec. PR 13616 include/ * bfdlink.h (struct bfd_link_info <big_endian>): New field. bfd/ * cpu-powerpc.c (bfd_arch_ppc_nop_fill): New function, use it for all ppc arch info. * linker.c (default_data_link_order): Pass info->big_endian to arch_info->fill function. ld/ * emulparams/elf64lppc.sh (NOP): Don't define. * emulparams/elf64ppc.sh (NOP): Don't define. * ldwrite.c (build_link_order): Use link_info.big_endian. Move code determining endian to use for data_statement to.. * ldemul.c (after_open_default): ..here. Set link_info.big_endian.	7 years ago
Jozef Lawrynowicz	c0ea7c52e1	Add support for new functionality in the msp430 backend of GCC. This functionality will generate a new GNU object attribute for the "data region" has been added. This object attribute is used mark whether the compiler has generated code assuming that data could be in the upper or lower memory regions. Code which assumes data is always in the lower memory region is incompatible with code which uses the full memory range for data. The patch also adds a new assembler directive ".mspabi_attribute" to handle the existing MSPABI object attributes. GCC will now emit both .gnu_attribute and .mspabi_attribute directives to indicate what options the source file was compiled with. The assembler will now check the values set in these directives against the options that the it has been invoked with. If there is a discrepancy, the assembler will exit with an error. bfd * elf32-msp430.c (elf32_msp430_merge_mspabi_attributes): Rename to.. (elf32_msp430_merge_msp430_attributes): Add support for merging the GNU object attribute for data region. binutils* readelf.c (display_msp430_gnu_attribute): New. (process_arch_specific): Use msp430 specific handler for GNU attributes. gas * config/tc-msp430.c (md_parse_option): Set lower_data_region_only to FALSE if the data region is set to "upper", "either" or "none". (msp430_object_attribute): New. (md_pseudo_table): Handle .mspabi_attribute and .gnu_attribute. (msp430_md_end): Replace hard-coded attribute values with enums. Handle data region object attribute. * doc/as.texi: Document MSP430 Data Region object attribute. * doc/c-msp430.texi: Document the .mspabi_attribute directive. * testsuite/gas/msp430/attr-430-small-bad.d: New test. * testsuite/gas/msp430/attr-430-small-bad.l: New test. * testsuite/gas/msp430/attr-430-small-good.d: New test. * testsuite/gas/msp430/attr-430-small.s: New test. * testsuite/gas/msp430/attr-430x-large-any-bad.d: New test. * testsuite/gas/msp430/attr-430x-large-any-bad.l: New test. * testsuite/gas/msp430/attr-430x-large-any-good.d: New test. * testsuite/gas/msp430/attr-430x-large-any.s: New test. * testsuite/gas/msp430/attr-430x-large-lower-bad.d: New test. * testsuite/gas/msp430/attr-430x-large-lower-bad.l: New test. * testsuite/gas/msp430/attr-430x-large-lower-good.d: New test. * testsuite/gas/msp430/attr-430x-large-lower.s: New test. * testsuite/gas/msp430/msp430.exp: Run new tests. include * elf/msp430.h: Add enums for MSPABI and GNU object attribute tag names and values. ld * testsuite/ld-msp430-elf/attr-gnu-main.s: New test. * testsuite/ld-msp430-elf/attr-gnu-obj.s: New test. * testsuite/ld-msp430-elf/attr-gnu-region-lower-upper.d: New test. * testsuite/ld-msp430-elf/attr-gnu-region-lower.d: New test. * testsuite/ld-msp430-elf/attr-gnu-region-upper.d: New test. * testsuite/ld-msp430-elf/msp430-elf.exp: Run new tests.	7 years ago
Nick Alcock	de07e349be	libctf: remove ctf_malloc, ctf_free and ctf_strdup These just get in the way of auditing for erroneous usage of strdup and add a huge irregular surface of "ctf_malloc or malloc? ctf_free or free? ctf_strdup or strdup?" ctf_malloc and ctf_free usage has not reliably matched up for many years, if ever, making the whole game pointless. Go back to malloc, free, and strdup like everyone else: while we're at it, fix a bunch of places where we weren't properly checking for OOM. This changes the interface of ctf_cuname_set and ctf_parent_name_set, which could strdup but could not return errors (like ENOMEM). New in v4. include/ * ctf-api.h (ctf_cuname_set): Can now fail, returning int. (ctf_parent_name_set): Likewise. libctf/ * ctf-impl.h (ctf_alloc): Remove. (ctf_free): Likewise. (ctf_strdup): Likewise. * ctf-subr.c (ctf_alloc): Remove. (ctf_free): Likewise. * ctf-util.c (ctf_strdup): Remove. * ctf-create.c (ctf_serialize): Use malloc, not ctf_alloc; free, not ctf_free; strdup, not ctf_strdup. (ctf_dtd_delete): Likewise. (ctf_dvd_delete): Likewise. (ctf_add_generic): Likewise. (ctf_add_function): Likewise. (ctf_add_enumerator): Likewise. (ctf_add_member_offset): Likewise. (ctf_add_variable): Likewise. (membadd): Likewise. (ctf_compress_write): Likewise. (ctf_write_mem): Likewise. * ctf-decl.c (ctf_decl_push): Likewise. (ctf_decl_fini): Likewise. (ctf_decl_sprintf): Likewise. Check for OOM. * ctf-dump.c (ctf_dump_append): Use malloc, not ctf_alloc; free, not ctf_free; strdup, not ctf_strdup. (ctf_dump_free): Likewise. (ctf_dump): Likewise. * ctf-open.c (upgrade_types_v1): Likewise. (init_types): Likewise. (ctf_file_close): Likewise. (ctf_bufopen_internal): Likewise. Check for OOM. (ctf_parent_name_set): Likewise: report the OOM to the caller. (ctf_cuname_set): Likewise. (ctf_import): Likewise. * ctf-string.c (ctf_str_purge_atom_refs): Use malloc, not ctf_alloc; free, not ctf_free; strdup, not ctf_strdup. (ctf_str_free_atom): Likewise. (ctf_str_create_atoms): Likewise. (ctf_str_add_ref_internal): Likewise. (ctf_str_remove_ref): Likewise. (ctf_str_write_strtab): Likewise.	7 years ago
Nick Alcock	791915db42	libctf: handle nonrepresentable types at link time GCC can emit references to type 0 to indicate that this type is one that is not representable in the version of CTF it emits (for instance, version 3 cannot encode vector types). Type 0 is already used in the function section to indicate padding inserted to skip functions we do not want to encode the type of, so using zero in this way is a good extension of the format: but libctf reports such types as ECTF_BADID, which is indistinguishable from file corruption via links to truly nonexistent types with IDs like 0xDEADBEEF etc, which we really do want to stop for. In particular, this stops all traversals of types dead at this point, preventing us from even dumping CTF files containing unrepresentable types to see what's going on! So add a new error, ECTF_NONREPRESENTABLE, which is returned by recursive type resolution when a reference to a zero type is found. (No zero type is ever emitted into the CTF file by GCC, only references to one). We can't do much with types that are ultimately nonrepresentable, but we can do enough to keep functioning. Adjust ctf_add_type to ensure that top-level types of type zero and structure and union members of ultimate type zero are simply skipped without reporting an error, so we can copy structures and unions that contain nonrepresentable members (skipping them and leaving a hole where they would be, so no consumers downstream of the linker need to worry about this): adjust the dumper so that we dump members of nonrepresentable types in a simple form that indicates nonrepresentability rather than terminating the dump, and do not falsely assume all errors to be -ENOMEM: adjust the linker so that types that fail to get added are simply skipped, so that both nonrepresentable types and outright errors do not terminate the type addition, which could skip many valid types and cause further errors when variables of those types are added. In future, when we gain the ability to call back to the linker to report link-time type resolution errors, we should report failures to add all but nonrepresentable types. But we can't do that yet. v5: Fix tabdamage. include/ * ctf-api.h (ECTF_NONREPRESENTABLE): New. libctf/ * ctf-types.c (ctf_type_resolve): Return ECTF_NONREPRESENTABLE on type zero. * ctf-create.c (ctf_add_type): Detect and skip nonrepresentable members and types. (ctf_add_variable): Likewise for variables pointing to them. * ctf-link.c (ctf_link_one_type): Do not warn for nonrepresentable type link failure, but do warn for others. * ctf-dump.c (ctf_dump_format_type): Likewise. Do not assume all errors to be ENOMEM. (ctf_dump_member): Likewise. (ctf_dump_type): Likewise. (ctf_dump_header_strfield): Do not assume all errors to be ENOMEM. (ctf_dump_header_sectfield): Do not assume all errors to be ENOMEM. (ctf_dump_header): Likewise. (ctf_dump_label): likewise. (ctf_dump_objts): likewise. (ctf_dump_funcs): likewise. (ctf_dump_var): likewise. (ctf_dump_str): Likewise.	7 years ago
Nick Alcock	87279e3cef	libctf: installable libctf as a shared library This lets other programs read and write CTF-format data. Two versioned shared libraries are created: libctf.so and libctf-nobfd.so. They contain identical content except that libctf-nobfd.so contains no references to libbfd and does not implement ctf_open, ctf_fdopen, ctf_bfdopen or ctf_bfdopen_ctfsect, so it can be used by programs that cannot use BFD, like readelf. The soname major version is presently .0 until the linker API stabilizes, when it will flip to .1 and hopefully never change again. New in v3. v4: libtoolize and turn into a pair of shared libraries. Drop --enable-install-ctf: now controlled by --enable-shared and --enable-install-libbfd, like everything else. v5: Add ../bfd to ACLOCAL_AMFLAGS and AC_CONFIG_MACRO_DIR. Fix tabdamage. * Makefile.def (host_modules): libctf is no longer no_install. * Makefile.in: Regenerated. libctf/ * configure.ac (AC_DISABLE_SHARED): New, like opcodes/. (LT_INIT): Likewise. (AM_INSTALL_LIBBFD): Likewise. (dlopen): Note why this is necessary in a comment. (SHARED_LIBADD): Initialize for possibly-PIC libiberty: derived from opcodes/. (SHARED_LDFLAGS): Likewise. (BFD_LIBADD): Likewise, for libbfd. (BFD_DEPENDENCIES): Likewise. (VERSION_FLAGS): Initialize, using a version script if ld supports one, or libtool -export-symbols-regex otherwise. (AC_CONFIG_MACRO_DIR): Add ../BFD. * Makefile.am (ACLOCAL_AMFLAGS): Likewise. (INCDIR): New. (AM_CPPFLAGS): Use $(srcdir), not $(top_srcdir). (noinst_LIBRARIES): Replace with... [INSTALL_LIBBFD] (lib_LTLIBRARIES): This, or... [!INSTALL_LIBBFD] (noinst_LTLIBRARIES): ... this, mentioning new libctf-nobfd.la as well. [INSTALL_LIBCTF] (include_HEADERS): Add the CTF headers. [!INSTALL_LIBCTF] (include_HEADERS): New, empty. (libctf_a_SOURCES): Rename to... (libctf_nobfd_la_SOURCES): ... this, all of libctf other than ctf-open-bfd.c. (libctf_la_SOURCES): Now derived from libctf_nobfd_la_SOURCES, with ctf-open-bfd.c added. (libctf_nobfd_la_LIBADD): New, using @SHARED_LIBADD@. (libctf_la_LIBADD): New, using @BFD_LIBADD@ as well. (libctf_la_DEPENDENCIES): New, using @BFD_DEPENDENCIES@. * Makefile.am [INSTALL_LIBCTF]: Use it. * aclocal.m4: Add ../bfd/acinclude.m4, ../config/acx.m4, and the libtool macros. * libctf.ver: New, everything is version LIBCTF_1.0 currently (even the unstable components). * Makefile.in: Regenerated. * config.h.in: Likewise. * configure: Likewise. binutils/ * Makefile.am (LIBCTF): Mention the .la file. (LIBCTF_NOBFD): New. (readelf_DEPENDENCIES): Use it. (readelf_LDADD): Likewise. * Makefile.in: Regenerated. ld/ * configure.ac (TESTCTFLIB): Set to the .so or .a, like TESTBFDLIB. * Makefile.am (TESTCTFLIB): Use it. (LIBCTF): Use the .la file. (check-DEJAGNU): Use it. * Makefile.in: Regenerated. * configure: Likewise. include/ * ctf-api.h: Note the instability of the ctf_link interfaces.	7 years ago
Nick Alcock	1ff6de0312	bfd, ld: add CTF section linking This is quite complicated because the CTF section's contents depend on the final contents of the symtab and strtab, because it has two sections whose contents are shuffled to be in 1:1 correspondence with the symtab, and an internal strtab that gets deduplicated against the ELF strtab (with offsets adjusted to point into the ELF strtab instead). It is also compressed if large enough, so its size depends on its contents! So we cannot construct it as early as most sections: we cannot even begin construction until after the symtab and strtab are finalized. Thankfully there is already one section treated similarly: compressed debugging sections: the only differences are that compressed debugging sections have extra handling to deal with their changing name if compressed (CTF sections are always called ".ctf" for now, though we have reserved ".ctf." against future use), and that compressed debugging sections have previously-uncompressed content which has to be stashed away for later compression, while CTF sections have no content at all until we generate it (very late). BFD also cannot do the link itself: libctf knows how to do it, and BFD cannot call libctf directly because libctf already depends on bfd for file I/O. So we have to use a pair of callbacks, one, examine_strtab, which allows a caller to examine the symtab and strtab after finalization (called from elf_link_swap_symbols_out(), right before the symtabs are written, and after the strtab has been finalized), and one which actually does the emission (called emit_ctf simply because it is grouped with a bunch of section-specific late-emission function calls at the bottom of bfd_elf_final_link, and a section-specific name seems best for that). emit_ctf is actually called twice: once from lang_process if the emulation suggests that this bfd target does not examine the symtab or strtab, and once via a bfd callback if it does. (This means that non-ELF targets still get CTF emitted, even though the late CTF emission stage is never called for them). v2: merged with non-ELF support patch: slight commit message adjustments. v3: do not spend time merging CTF, or crash, if the CTF section is explicitly discarded. Do not try to merge or compress CTF unless linking. v4: add CTF_COMPRESSION_THRESHOLD. Annul the freed input ctf_file_t's after writeout: set SEC_IN_MEMORY on the output contents so a future bfd enhancement knows it could free it. Add SEC_LINKER_CREATED \| SEC_KEEP to avoid having to add .ctf to the linker script. Drop now-unnecessary ldlang.h-level elf-bfd.h include and hackery around it. Adapt to elf32.em->elf.em and elf-generic.em->ldelf.c changes. v5: fix tabdamage. Drop #inclusions in .h files: include in .c files, .em files, and use struct forwards instead. Use bfd_section_is_ctf inline function rather than SECTION_IS_CTF macro. Move a few comments. * Makefile.def (dependencies): all-ld depends on all-libctf. * Makefile.in: Regenerated. include/ * bfdlink.h (elf_strtab_hash): New forward. (elf_sym_strtab): Likewise. (struct bfd_link_callbacks <examine_strtab>): New. (struct bfd_link_callbacks <emit_ctf>): Likewise. bfd/ * elf-bfd.h (bfd_section_is_ctf): New inline function. * elf.c (special_sections_c): Add ".ctf". (assign_file_positions_for_non_load_sections): Note that compressed debugging sections etc are not assigned here. Treat CTF sections like SEC_ELF_COMPRESS sections when is_linker_output: sh_offset -1. (assign_file_positions_except_relocs): Likewise. (find_section_in_list): Note that debugging and CTF sections, as well as reloc sections, are assigned later. (_bfd_elf_assign_file_positions_for_non_load): CTF sections get their size and contents updated. (_bfd_elf_set_section_contents): Skip CTF sections: unlike compressed sections, they have no uncompressed content to copy at this stage. * elflink.c (elf_link_swap_symbols_out): Call the examine_strtab callback right before the strtab is written out. (bfd_elf_final_link): Don't cache the section contents of CTF sections: they are not populated yet. Call the emit_ctf callback right at the end, after all the symbols and strings are flushed out. ld/ * ldlang.h: (struct lang_input_statement_struct): Add the_ctf. (struct elf_sym_strtab): Add forward. (struct elf_strtab_hash): Likewise. (ldlang_ctf_apply_strsym): Declare. (ldlang_write_ctf_late): Likewise. * ldemul.h (ldemul_emit_ctf_early): New. (ldemul_examine_strtab_for_ctf): Likewise. (ld_emulation_xfer_type) <emit_ctf_early>: Likewise. (ld_emulation_xfer_type) <examine_strtab_for_ctf>: Likewise. * ldemul.c (ldemul_emit_ctf_early): New. (ldemul_examine_strtab_for_ctf): Likewise. * ldlang.c: Include ctf-api.h. (CTF_COMPRESSION_THRESHOLD): New. (ctf_output): New. Initialized in... (ldlang_open_ctf): ... this new function. Open all the CTF sections in the input files: mark them non-loaded and empty so as not to copy their contents to the output, but linker-created so the section gets created in the target. (ldlang_merge_ctf): New, merge types via ctf_link_add_ctf and ctf_link. (ldlang_ctf_apply_strsym): New, an examine_strtab callback: wrap ldemul_examine_strtab_for_ctf. (lang_write_ctf): New, write out the CTF section. (ldlang_write_ctf_late): New, late call via bfd's emit_ctf hook. (lang_process): Call ldlang_open_ctf, ldlang_merge_ctf, and lang_write_ctf. * ldmain.c (link_callbacks): Add ldlang_ctf_apply_strsym, ldlang_write_ctf_late. * emultempl/aix.em: Add ctf-api.h. * emultempl/armcoff.em: Likewise. * emultempl/beos.em: Likewise. * emultempl/elf.em: Likewise. * emultempl/generic.em: Likewise. * emultempl/linux.em: Likewise. * emultempl/msp430.em: Likewise. * emultempl/pe.em: Likewise. * emultempl/pep.em: Likewise. * emultempl/ticoff.em: Likewise. * emultempl/vanilla.em: Likewise. * ldcref.c: Likewise. * ldctor.c: Likewise. * ldelf.c: Likewise. * ldelfgen.c: Likewise. * ldemul.c: Likewise. * ldexp.c: Likewise. * ldfile.c: Likewise. * ldgram.c: Likewise. * ldlex.l: Likewise. * ldmain.c: Likewise. * ldmisc.c: Likewise. * ldver.c: Likewise. * ldwrite.c: Likewise. * lexsup.c: Likewise. * mri.c: Likewise. * pe-dll.c: Likewise. * plugin.c: Likewise. * ldelfgen.c (ldelf_emit_ctf_early): New. (ldelf_examine_strtab_for_ctf): tell libctf about the symtab and strtab. (struct ctf_strsym_iter_cb_arg): New, state to do so. (ldelf_ctf_strtab_iter_cb): New: tell libctf about each string in the strtab in turn. (ldelf_ctf_symbols_iter_cb): New, tell libctf about each symbol in the symtab in turn. * ldelfgen.h (struct elf_sym_strtab): Add forward. (struct elf_strtab_hash): Likewise. (struct ctf_file): Likewise. (ldelf_emit_ctf_early): Declare. (ldelf_examine_strtab_for_ctf): Likewise. * emultempl/elf-generic.em (LDEMUL_EMIT_CTF_EARLY): Set it. (LDEMUL_EXAMINE_STRTAB_FOR_CTF): Likewise. * emultempl/aix.em (ld_${EMULATION_NAME}_emulation): Add emit_ctf_early and examine_strtab_for_ctf, NULL by default. * emultempl/armcoff.em (ld_${EMULATION_NAME}_emulation): Likewise. * emultempl/beos.em (ld_${EMULATION_NAME}_emulation): Likewise. * emultempl/elf.em (ld_${EMULATION_NAME}_emulation): Likewise. * emultempl/generic.em (ld_${EMULATION_NAME}_emulation): Likewise. * emultempl/linux.em (ld_${EMULATION_NAME}_emulation): Likewise. * emultempl/msp430.em (ld_${EMULATION_NAME}_emulation): Likewise. * emultempl/pe.em (ld_${EMULATION_NAME}_emulation): Likewise. * emultempl/pep.em (ld_${EMULATION_NAME}_emulation): Likewise. * emultempl/ticoff.em (ld_${EMULATION_NAME}_emulation): Likewise. * emultempl/vanilla.em (ld_vanilla_emulation): Likewise. * Makefile.am: Pull in libctf (and zlib, a transitive requirement for compressed CTF section emission). Pass it on to DejaGNU. * configure.ac: Add AM_ZLIB. * aclocal.m4: Added zlib.m4. * Makefile.in: Regenerated. * testsuite/ld-bootstrap/bootstrap.exp: Use it when relinking ld.	7 years ago
Nick Alcock	7e97445a5a	libctf: get rid of a disruptive public include of <sys/param.h> This hoary old header defines things like MAX that users of libctf might perfectly reasonably define themselves. The CTF headers do not need it: move it into libctf/ctf-impl.h instead. include/ * ctf-api.h (includes): No longer include <sys/param.h>. libctf/ * ctf-impl.h (includes): Include <sys/param.h> here.	7 years ago
Nick Alcock	49ea9b450b	libctf: add CU-mapping machinery Once the deduplicator is capable of actually detecting conflicting types with the same name (i.e., not yet) we will place such conflicting types, and types that depend on them, into CTF dictionaries that are the child of the main dictionary we usually emit: currently, this will lead to the .ctf section becoming a CTF archive rather than a single dictionary, with the default-named archive member (_CTF_SECTION, or NULL) being the main shared dictionary with most of the types in it. By default, the sections are named after the compilation unit they come from (complete path and all), with the cuname field in the CTF header providing further evidence of the name without requiring the caller to engage in tiresome parsing. But some callers may not wish the mapping from input CU to output sub-dictionary to be purely CU-based. The machinery here allows this to be freely changed, in two ways: - callers can call ctf_link_add_cu_mapping to specify that a single input compilation unit should have its types placed in some other CU if they conflict: the CU will always be created, even if empty, so the consuming program can depend on its existence. You can map multiple input CUs to one output CU to force all their types to be merged together: if some of those types conflict, the behaviour is currently unspecified (the new deduplicator will specify it). - callers can call ctf_link_set_memb_name_changer to provide a function which is passed every CTF sub-dictionary name in turn (including _CTF_SECTION) and can return a new name, or NULL if no change is desired. The mapping from input to output names should not map two input names to the same output name: if this happens, the two are not merged but will result in an archive with two members with the same name (technically valid, but it's hard to access the second same-named member: you have to do an iteration over archive members). This is used by the kernel's ctfarchive machinery (not yet upstream) to encode CTF under member names like {module name}.ctf rather than .ctf.CU, but it is anticipated that other large projects may wish to have their own storage for CTF outside of .ctf sections and may wish to have new naming schemes that suit their special-purpose consumers. New in v3. v4: check for strdup failure. v5: fix tabdamage. include/ * ctf-api.h (ctf_link_add_cu_mapping): New. (ctf_link_memb_name_changer_f): New. (ctf_link_set_memb_name_changer): New. libctf/ * ctf-impl.h (ctf_file_t) <ctf_link_cu_mappping>: New. <ctf_link_memb_name_changer>: Likewise. <ctf_link_memb_name_changer_arg>: Likewise. * ctf-create.c (ctf_update): Update accordingly. * ctf-open.c (ctf_file_close): Likewise. * ctf-link.c (ctf_create_per_cu): Apply the cu mapping. (ctf_link_add_cu_mapping): New. (ctf_link_set_memb_name_changer): Likewise. (ctf_change_parent_name): New. (ctf_name_list_accum_cb_arg_t) <dynames>: New, storage for names allocated by the caller's ctf_link_memb_name_changer. <ndynames>: Likewise. (ctf_accumulate_archive_names): Call the ctf_link_memb_name_changer. (ctf_link_write): Likewise (for _CTF_SECTION only): also call ctf_change_parent_name. Free any resulting names.	7 years ago
Nick Alcock	eabb7154df	libctf: add linking of the variable section The compiler describes the name and type of all file-scope variables in this section. Merging it at link time requires using the type mapping added in the previous commit to determine the appropriate type for the variable in the output, given its type in the input: we check the shared container first, and if the type doesn't exist there, it must be a conflicted type in the per-CU child, and the variable should go there too. We also put the variable in the per-CU child if a variable with the same name but a different type already exists in the parent: we ignore any such conflict in the child because CTF cannot represent such things, nor can they happen unless a third-party linking program has overridden the mapping of CU to CTF archive member name (using machinery added in a later commit). v3: rewritten using an algorithm that actually works in the case of conflicting names. Some code motion from the next commit. Set the per-CU parent name. v4: check for strdup failure. v5: fix tabdamage. include/ * ctf-api.h (ECTF_INTERNAL): New. libctf/ * ctf-link.c (ctf_create_per_cu): New, refactored out of... (ctf_link_one_type): ... here, with parent-name setting added. (check_variable): New. (ctf_link_one_variable): Likewise. (ctf_link_one_input_archive_member): Call it. * ctf-error.c (_ctf_errlist): Updated with new errors.	7 years ago
Nick Alcock	72c83edd92	libctf: add the ctf_link machinery This is the start of work on the core of the linking mechanism for CTF sections. This commit handles the type and string sections. The linker calls these functions in sequence: ctf_link_add_ctf: to add each CTF section in the input in turn to a newly-created ctf_file_t (which will appear in the output, and which itself will become the shared parent that contains types that all TUs have in common (in all link modes) and all types that do not have conflicting definitions between types (by default). Input files that are themselves products of ld -r are supported, though this is not heavily tested yet. ctf_link: called once all input files are added to merge the types in all the input containers into the output container, eliminating duplicates. ctf_link_add_strtab: called once the ELF string table is finalized and all its offsets are known, this calls a callback provided by the linker which returns the string content and offset of every string in the ELF strtab in turn: all these strings which appear in the input CTF strtab are eliminated from it in favour of the ELF strtab: equally, any strings that only appear in the input strtab will reappear in the internal CTF strtab of the output. ctf_link_shuffle_syms (not yet implemented): called once the ELF symtab is finalized, this calls a callback provided by the linker which returns information on every symbol in turn as a ctf_link_sym_t. This is then used to shuffle the function info and data object sections in the CTF section into symbol table order, eliminating the index sections which map those sections to symbol names before that point. Currently just returns ECTF_NOTYET. ctf_link_write: Returns a buffer containing either a serialized ctf_file_t (if there are no types with conflicting definitions in the object files in the link) or a ctf_archive_t containing a large ctf_file_t (the common types) and a bunch of small ones named after individual CUs in which conflicting types are found (containing the conflicting types, and all types that reference them). A threshold size above which compression takes place is passed as one parameter. (Currently, only gzip compression is supported, but I hope to add lzma as well.) Lifetime rules for this are simple: don't close the input CTF files until you've called ctf_link for the last time. We do not assume that symbols or strings passed in by the callback outlast the call to ctf_link_add_strtab or ctf_link_shuffle_syms. Right now, the duplicate elimination mechanism is the one already present as part of the ctf_add_type function, and is not particularly good: it misses numerous actual duplicates, and the conflicting-types detection hardly ever reports that types conflict, even when they do (one of them just tends to get silently dropped): it is also very slow. This will all be fixed in the next few weeks, but the fix hardly touches any of this code, and the linker does work without it, just not as well as it otherwise might. (And when no CTF section is present, there is no effect on performance, of course. So only people using a trunk GCC with not-yet-committed patches will even notice. By the time it gets upstream, things should be better.) v3: Fix error handling. v4: check for strdup failure. v5: fix tabdamage. include/ * ctf-api.h (struct ctf_link_sym): New, a symbol in flight to the libctf linking machinery. (CTF_LINK_SHARE_UNCONFLICTED): New. (CTF_LINK_SHARE_DUPLICATED): New. (ECTF_LINKADDEDLATE): New, replacing ECTF_UNUSED. (ECTF_NOTYET): New, a 'not yet implemented' message. (ctf_link_add_ctf): New, add an input file's CTF to the link. (ctf_link): New, merge the type and string sections. (ctf_link_strtab_string_f): New, callback for feeding strtab info. (ctf_link_iter_symbol_f): New, callback for feeding symtab info. (ctf_link_add_strtab): New, tell the CTF linker about the ELF strtab's strings. (ctf_link_shuffle_syms): New, ask the CTF linker to shuffle its symbols into symtab order. (ctf_link_write): New, ask the CTF linker to write the CTF out. libctf/ * ctf-link.c: New file, linking of the string and type sections. * Makefile.am (libctf_a_SOURCES): Add it. * Makefile.in: Regenerate. * ctf-impl.h (ctf_file_t): New fields ctf_link_inputs, ctf_link_outputs. * ctf-create.c (ctf_update): Update accordingly. * ctf-open.c (ctf_file_close): Likewise. * ctf-error.c (_ctf_errlist): Updated with new errors.	7 years ago
Nick Alcock	5537f9b9a3	libctf: write CTF files to memory, and CTF archives to fds Before now, we've been able to write CTF files to gzFile descriptors or fds, and CTF archives to named files only. Make this a bit less irregular by allowing CTF archives to be written to fds with the new function ctf_arc_write_fd: also allow CTF files to be written to a new memory buffer via ctf_write_mem. (It would be nice to complete things by adding a new function to write CTF archives to memory, but this is too difficult to do given the short time the linker is expected to be writing them out: we will transition to a better format in format v4, though we will always support reading CTF archives that are stored in .ctf sections.) include/ * ctf-api.h (ctf_arc_write_fd): New. (ctf_write_mem): Likewise. (ctf_gzwrite): Spacing fix. libctf/ * ctf-archive.c (ctf_arc_write): Split off, and reimplement in terms of... (ctf_arc_write_fd): ... this new function. * ctf-create.c (ctf_write_mem): New.	7 years ago

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