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2017-01-25Handle DW_OP_GNU_implicit_pointer in dwarf assemblerYao Qi2-1/+11
DW_OP_GNU_implicit_pointer refers to a DIE with an offset of different sizes in different dwarf versions. In v2, the size is the pointer size, while in v3 and above, it is the ref_addr size. This patch fixes dwarf assembler to emit the correct size of offset. We've already fixed this size issue in gdb, https://sourceware.org/ml/gdb-patches/2011-09/msg00451.html gdb/testsuite: 2017-01-25 Yao Qi <yao.qi@linaro.org> * lib/dwarf.exp (Dwarf::_location): Handle DW_OP_GNU_implicit_pointer with proper size.
2017-01-25Clarify that include/opcode/ files are part of GNU opcodesDimitar Dimitrov9-8/+20
include/ChangeLog: 2017-01-25 Dimitar Dimitrov <dimitar@dinux.eu> * opcode/hppa.h: Clarify that file is part of GNU opcodes. * opcode/i860.h: Ditto. * opcode/nios2.h: Ditto. * opcode/nios2r1.h: Ditto. * opcode/nios2r2.h: Ditto. * opcode/pru.h: Ditto. opcodes/ChangeLog: 2017-01-25 Dimitar Dimitrov <dimitar@dinux.eu> * pru-opc.c: Remove vague reference to a future GDB port.
2017-01-25Fix include/ChangeLog entry formatPedro Alves1-1/+1
Add missing <> around name.
2017-01-25Remove all RTEMS a.out targetsSebastian Huber2-1/+5
* config.bfd (*-*-rtemsaout*): Mark as removed.
2017-01-25Move RTEMS target configuration to ELF sectionsSebastian Huber4-40/+38
bfd/ * config.bfd (powerpcle-*-rtems*): Do not mark as removed. (arm-*-rtems*): Move to (arm*-*-eabi*). (i[3-7]86-*-rtems*): Move to (i[3-7]86-*-elf*). (m68-*-rtems*): Move to (m68*-*-elf*). ld/ * configure.tgt (arm-*-rtems*): Move to (arm*-*-eabi*). (bfin-*-rtems*): Move to (bfin*-*-elf*). (i[3-7]86-*-rtems*): Move to (i[3-7]86*-*-elf*). (m68*-*-rtems*): Move to (m68*-*-elf*). (mips*-*-rtems*): Move to (mips*-*-elf*). (or1k*-*-rtems*): Move to (or1k*-*-elf*). (powerpc*-*-rtems*): Move to (powerpc*-*-elf*). (sparc*-*-rtems*): Move to (sparc*-*-elf*). (sparc64*-*-rtems*): Move to (sparc64*-*-elf*).
2017-01-25gas: Default to ELF for RTEMS targetsSebastian Huber2-14/+23
* configure.tgt (aarch64*-*-rtems*): Remove. (bfin-*-rtems*): Likewise. (h8300-*-rtems*): Likewise. (i386-*-rtems*): Likewise. (m32c-*-rtems*): Likewise. (m32r-*-rtems*): Likewise. (m68k-*-rtems*): Likewise. (mips-*-rtems*): Likewise. (nios2-*-rtems*): Likewise. (ppc-*-rtems*): Likewise. (sh-*-rtems*): Likewise. (sparc64-*-rtems*): Likewise. (sparc-*-rtems*): Likewise. (*-*-rtems*) Use ELF format.
2017-01-25gas: Use ARM EABI for RTEMSSebastian Huber2-2/+5
* configure.tgt (arm-*-rtems*): Move to (arm-*-eabi*).
2017-01-25Remove all RTEMS COFF targetsSebastian Huber6-20/+18
bfd/ * config.bfd (*-*-rtemscoff*): Mark as removed. gas/ * configure.tgt (sh-*-rtemscoff*): Remove. ld/ * configure.tgt (h8300-*-rtemscoff*): Remove. (i960-*-rtems*): Likewise. (m68*-*-rtemscoff*): Likewise. (sh-*-rtemscoff*): Likewise.
2017-01-25Automatic date update in version.inGDB Administrator1-1/+1
2017-01-24Fix typo in ExitedEvent docSimon Marchi2-1/+5
The field "inferior" of the ExitedEvent object is not displayed properly. gdb/doc/ChangeLog: * python.texi (Events In Python): Fix typo.
2017-01-24RISC-V gas: Remove em=linux from configure.tgtSebastian Huber2-1/+5
The use of te-linux.h is unnecessary since the TE_LINUX define is unused and LOCAL_LABELS_FB is defined to 1 in tc-riscv.h as well. gas/ * configure.tgt (riscv*-*-*): Remove em=linux.
2017-01-24PR ld/20828: Reorder the symbol sweep stage of section GCMaciej W. Rozycki4-54/+71
Complement commit 81ff47b3a546 ("PR ld/20828: Fix linker script symbols wrongly forced local with section GC") and move the symbol sweep stage of section GC from `elf_gc_sweep' to `bfd_elf_size_dynamic_sections', avoiding the need to clear the `forced_local' marker, problematic for targets that have special processing in their `elf_backend_hide_symbol' handler. Set `mark' instead in `bfd_elf_record_link_assignment' and, matching changes from commit 3bd43ebcb602 ("ld --gc-sections fail with __tls_get_addr_opt"), also in PowerPC `__tls_get_addr_opt' handling code, removing a: FAIL: PR ld/20828 dynamic symbols with section GC (version script) test suite failure with the `score-elf' target. The rationale is it is enough if symbols are swept at the beginning of `bfd_elf_size_dynamic_sections' as it is only in this function that the size of the GOT, the dynamic symbol table and other dynamic sections is determined, which will depend on the number of symbols making it to the dynamic symbol table. It is also appropriate to do the sweep at this point as it is already after any changes have been made to symbols with `bfd_elf_record_link_assignment', and not possible any earlier as calls to that function are only made just beforehand -- barring audit entry processing -- via `gld${EMULATION_NAME}_find_statement_assignment' invoked from `gld${EMULATION_NAME}_before_allocation' which is the ELF handler for `ldemul_before_allocation'. bfd/ PR ld/20828 * elflink.c (bfd_elf_record_link_assignment): Revert last change and don't ever clear `forced_local'. Set `mark' unconditionally. (elf_gc_sweep_symbol_info, elf_gc_sweep_symbol): Reorder within file. (elf_gc_sweep): Move the call to `elf_gc_sweep_symbol'... (bfd_elf_size_dynamic_sections): ... here. * elf32-ppc.c (ppc_elf_tls_setup): Don't clear `forced_local' and set `mark' instead in `__tls_get_addr_opt' processing. * elf64-ppc.c (ppc64_elf_tls_setup): Likewise.
2017-01-24Solaris2/LD: Fix anonymous version script acceptance bugMaciej W. Rozycki2-1/+8
Correct a bug in Solaris 2 linker emulation code triggered by a test introduced with commit 81ff47b3a546 ("PR ld/20828: Fix linker script symbols wrongly forced local with section GC") and only create implicit version nodes if versioning is actually introduced with a version script (or VERSION command) rather than only global vs local symbol visibility selected, fixing an: ld: anonymous version tag cannot be combined with other version tags linker error produced whenever a version script (or VERSION command) is used that does not assign symbol versions, such as: { global: foo; bar; local: *; }; and consequently removing a: FAIL: PR ld/20828 dynamic symbols with section GC (version script) test suite failure with the `x86_64-solaris2' target. ld/ * emultempl/solaris2.em (elf_solaris2_before_allocation): Do not add implicit version nodes if an anonymous version tag is being used.
2017-01-24[PATCH] Add NT_ARM_SVEAlan Hayward2-0/+6
* elf/common.h (NT_ARM_SVE): Define.
2017-01-24[ld, testsuite] Always assemble those intermeidate .o files used laterJiong Wang2-7/+31
ld/ * testsuite/ld-plugin/lto.exp (lto_link_elf_tests): Move "Compile 7", "Compile 8a", "Compile 8b"... (lto_compile_elf_tests): ...to here. Always run these tests. (lto_run_elf_tests): Move "LTO 7"... (lto_run_elf_shared_tests): ...to here. Restrict these tests on environment where share library is supported.
2017-01-24PowerPC dynamic relocationsAlan Modra7-313/+383
This patch fixes a number of issues with powerpc dynamic relocations. 1) Both ppc and ppc64 were emitting more dynamic symbols and relocations than necessary, due to not supporting static linker resolution of tls_index entries for __tls_get_addr_opt. This meant that any @got@tlsgd or @got@tlsld reloc needed to make their symbols dynamic and generate dptmod and dtprel relocs for the dynamic linker. That would have been passable, but what happened was that practically all @got relocations resulted in their symbols being made dynamic and dynamic relocations emitted against the GOT entries. (Mostly visible on ppc32 executables since ppc64 gcc really only uses @got style relocs for TLS.) 2) The PowerOpen syntax was not supported with __tls_get_addr_opt. DTPMOD/DTPREL relocs on tls_index TOC entries did not use the trick of forcing dynamic symbols and relocations so those entries always resulted in the full __tls_get_addr processing. gcc doesn't use the PowerOpen syntax for TLS, and normally such code would be optimized to TLS IE or LE so the impact of missing this support was minimal. 3) In an executable, relocations against GNU indirect functions always used the value of their PLT stub. While this is correct, it is better in some cases to use a dynamic relocation. An extra dynamic relocation can mean that calls via function pointers need not bounce through the PLT stub at runtime. The patch also tidies the PLT handling code in ppc32 allocate_dynrelocs. Allocating PLT entries after other dynamic relocs allows the PLT loop to omit special handling for undefined weak symbols, and that in turn allows the loop to be simplified. bfd/ * elf32-ppc.c (ppc_elf_adjust_dynamic_symbol): Merge two cases where dynamic relocs are preferable. Allow ifunc too. (ensure_undefweak_dynamic): New function. (allocate_dynrelocs): Use it here. Move plt handling last and don't make symbols dynamic, simplifying loop. Only make undef weak symbols with GOT entries dynamic. Correct condition for GOT relocs. Handle dynamic relocs on ifuncs. Correct comments. Remove goto. (ppc_elf_relocate_section): Correct test for using dynamic symbol on GOT relocs. Rearrange test for emitting GOT relocs to suit. Set up explicit tls_index entries and implicit GOT tls_index entries resolvable at link time for __tls_get_addr_opt. Simplify test to clear mem for prelink. * elf64-ppc.c (allocate_got): Correct condition for GOT relocs. (ensure_undefweak_dynamic): New function. (allocate_dynrelocs): Use it here. Only make undef weak symbols with GOT entries dynamic. Remove unnecessary test of WILL_CALL_FINISH_DYNAMIC_SYMBOL in PLT handling. (ppc64_elf_relocate_section): Correct test for using dynamic symbol on GOT relocs. Rearrange test for emitting GOT relocs to suit. Set up explicit tls_index entries and implicit GOT tls_index entries resolvable at link time for __tls_get_addr_opt. Simplify expression to clear mem for prelink. ld/ * testsuite/ld-powerpc/tlsexe.r: Update for fewer dynamic relocs and symbols. * testsuite/ld-powerpc/tlsexe.d: Likewise. * testsuite/ld-powerpc/tlsexe.g: Likewise.
2017-01-23Add -e to test scripts where necessary.Rahul Chaudhry4-4/+14
gold/ * testsuite/icf_safe_so_test.sh: Use "set -e". * testsuite/icf_safe_test.sh: Likewise. * testsuite/icf_test.sh: Likewise.
2017-01-23Add support for cmtst.Jim Wilson4-0/+113
sim/aarch64/ * simulator.c (do_vec_compare): Add case 0x23 for CMTST. sim/testsuite/sim/aarch64/ * cmtst.s: New.
2017-01-23Make the sh_info field of .rel.plt point to .plt (MIPS).Vladimir Radosavljevic2-1/+12
gold/ * mips.cc (Mips_output_data_plt::rel_plt): Remove const from return type. (Target_mips::make_plt_entry): Make the sh_info field of .rel.plt point to .plt.
2017-01-23Fix MIPS GOT when global symbols are forced to local visibility.Vladimir Radosavljevic2-2/+11
gold/ PR gold/21054 * mips.cc (Mips_got_info::record_global_got_symbol): Don't add symbol to the dynamic symbol table if it is forced to local visibility. (Target_mips::do_finalize_sections): Don't add __RLD_MAP symbol to the dynamic symbol table if it is forced to local visibility.
2017-01-24Automatic date update in version.inGDB Administrator1-1/+1
2017-01-23Minor simplification of (Python) find_thread_objectSimon Marchi2-8/+6
Since the reference to the Inferior Python object is managed by gdbpy_ref (RAII), we can return directly from the loop. It's just a leftover from the cleanups era. gdb/ChangeLog: * python/py-inferior.c (find_thread_object): Return directly from the loop. Remove "found" variable.
2017-01-23Fix AArch64 relocation handling in ILP32 mode.Yury Norov16-91/+352
bfd * elfnn-aarch64.c: Fix relaxations for ILP32 mode. ld * testsuite/ld-aarch64/aarch64-elf.exp: Run new tests. * testsuite/ld-aarch64/tls-desc-ie-ilp32.d: New test. * testsuite/ld-aarch64/tls-relax-all-ilp32.d: New test. * testsuite/ld-aarch64/tls-relax-gd-le-ilp32.d: New test. * testsuite/ld-aarch64/tls-relax-gdesc-le-2-ilp32.d: New test. * testsuite/ld-aarch64/tls-relax-gdesc-le-ilp32.d: New test. * testsuite/ld-aarch64/tls-relax-ie-le-2-ilp32.d: New test. * testsuite/ld-aarch64/tls-relax-ie-le-3-ilp32.d: New test. * testsuite/ld-aarch64/tls-relax-ie-le-ilp32.d: New test. * testsuite/ld-aarch64/tls-tiny-desc-ie-ilp32.d: New test. * testsuite/ld-aarch64/tls-tiny-desc-le-ilp32.d: New test. * testsuite/ld-aarch64/tls-tiny-gd-ie-ilp32.d: New test. * testsuite/ld-aarch64/tls-tiny-gd-le-ilp32.d: New test.
2017-01-23Fix typo in MAINTAINERS fileNick Clifton1-1/+1
2017-01-23Remove Mei Ligang as SCORE maintainerNick Clifton2-1/+3
2017-01-23Add Bernd Schmidt to Past Maintainers listNick Clifton2-0/+5
2017-01-23Restore ability to build zlib in a srcdir == builddir configuration.Nick Clifton3-2/+28
* configure.ac: Restore old behaviour of only enabling multilibs when a target subdirectory is defined. This allows building with srcdir == builddir. * configure: Regenerate.
2017-01-23Fix spelling mistakes and typos in the GAS sources.Nick Clifton103-410/+516
PR gas/21072 * asintl.h: Fix spelling mistakes and typos. * atof-generic.c: Likewise. * bit_fix.h: Likewise. * config/atof-ieee.c: Likewise. * config/bfin-defs.h: Likewise. * config/bfin-parse.y: Likewise. * config/obj-coff-seh.h: Likewise. * config/obj-coff.c: Likewise. * config/obj-evax.c: Likewise. * config/obj-macho.c: Likewise. * config/rx-parse.y: Likewise. * config/tc-aarch64.c: Likewise. * config/tc-alpha.c: Likewise. * config/tc-arc.c: Likewise. * config/tc-arm.c: Likewise. * config/tc-avr.c: Likewise. * config/tc-bfin.c: Likewise. * config/tc-cr16.c: Likewise. * config/tc-cris.c: Likewise. * config/tc-crx.c: Likewise. * config/tc-d10v.c: Likewise. * config/tc-d30v.c: Likewise. * config/tc-dlx.c: Likewise. * config/tc-epiphany.c: Likewise. * config/tc-frv.c: Likewise. * config/tc-hppa.c: Likewise. * config/tc-i370.c: Likewise. * config/tc-i386-intel.c: Likewise. * config/tc-i386.c: Likewise. * config/tc-i960.c: Likewise. * config/tc-ia64.c: Likewise. * config/tc-m32r.c: Likewise. * config/tc-m68hc11.c: Likewise. * config/tc-m68k.c: Likewise. * config/tc-mcore.c: Likewise. * config/tc-mep.c: Likewise. * config/tc-mep.h: Likewise. * config/tc-metag.c: Likewise. * config/tc-microblaze.c: Likewise. * config/tc-mips.c: Likewise. * config/tc-mmix.c: Likewise. * config/tc-mn10200.c: Likewise. * config/tc-mn10300.c: Likewise. * config/tc-msp430.c: Likewise. * config/tc-msp430.h: Likewise. * config/tc-nds32.c: Likewise. * config/tc-nds32.h: Likewise. * config/tc-nios2.c: Likewise. * config/tc-nios2.h: Likewise. * config/tc-ns32k.c: Likewise. * config/tc-pdp11.c: Likewise. * config/tc-ppc.c: Likewise. * config/tc-pru.c: Likewise. * config/tc-rx.c: Likewise. * config/tc-s390.c: Likewise. * config/tc-score.c: Likewise. * config/tc-score7.c: Likewise. * config/tc-sh.c: Likewise. * config/tc-sh64.c: Likewise. * config/tc-sparc.c: Likewise. * config/tc-tic4x.c: Likewise. * config/tc-tic54x.c: Likewise. * config/tc-v850.c: Likewise. * config/tc-vax.c: Likewise. * config/tc-visium.c: Likewise. * config/tc-xgate.c: Likewise. * config/tc-xtensa.c: Likewise. * config/tc-z80.c: Likewise. * config/tc-z8k.c: Likewise. * config/te-vms.c: Likewise. * config/xtensa-relax.c: Likewise. * doc/as.texinfo: Likewise. * doc/c-arm.texi: Likewise. * doc/c-hppa.texi: Likewise. * doc/c-i370.texi: Likewise. * doc/c-i386.texi: Likewise. * doc/c-m32r.texi: Likewise. * doc/c-m68k.texi: Likewise. * doc/c-mmix.texi: Likewise. * doc/c-msp430.texi: Likewise. * doc/c-nds32.texi: Likewise. * doc/c-ns32k.texi: Likewise. * doc/c-riscv.texi: Likewise. * doc/c-rx.texi: Likewise. * doc/c-s390.texi: Likewise. * doc/c-tic6x.texi: Likewise. * doc/c-tilegx.texi: Likewise. * doc/c-tilepro.texi: Likewise. * doc/c-v850.texi: Likewise. * doc/c-xgate.texi: Likewise. * doc/c-xtensa.texi: Likewise. * dwarf2dbg.c: Likewise. * ecoff.c: Likewise. * itbl-ops.c: Likewise. * listing.c: Likewise. * macro.c: Likewise. * po/gas.pot: Likewise. * read.c: Likewise. * struc-symbol.h: Likewise. * symbols.h: Likewise. * testsuite/gas/arc/relocs-errors.err: Likewise. * write.c: Likewise.
2017-01-23 * MAINTAINERS (BFIN): Remove myself as Blackfin maintainer.Bernd Schmidt2-1/+4
2017-01-23Updated Irish translation for ld and Swedish translation for gas.Nick Clifton4-1901/+2284
2017-01-23Sync top-level make and configure files with FSF GCC mainline versions.Nick Clifton6-1817/+637
* configure.ac: Update year in copyright notice. Sync from FSF GCC mainline, bringing in the following patches. * Makefile.def: Likewise. * Makefile.tpl: Likewise. * configure: Regenerate. * Makefile.in: Regenerate. 2016-12-21 Jakub Jelinek <jakub@redhat.com> * configure.ac: Don't bootstrap libmpx unless --with-build-config includes bootstrap-mpx. 2016-12-01 Matthias Klose <doko@ubuntu.com> * configure.ac: Don't use pkg-config to check for bdw-gc. 2016-11-30 Matthias Klose <doko@ubuntu.com> * Makefile.def: Remove reference to boehm-gc target module. * configure.ac: Include pkg.m4, check for --with-target-bdw-gc options and for the bdw-gc pkg-config module. 2016-11-15 Matthias Klose <doko@ubuntu.com> * config-ml.in: Remove references to GCJ. * configure.ac: Likewise. 2016-09-30 Jakub Jelinek <jakub@redhat.com> * configure.ac: Add target-libffi to target_libraries. Readd libgcj target disablings, modified to only target-libffi. Readd target addition of go to unsupported languages. 2016-09-30 Andrew Haley <aph@redhat.com> * Makefile.def: Remove libjava. * Makefile.tpl: Likewise. * configure.ac: Likewise. 2016-09-26 Anton Kolesov <Anton.Kolesov@synopsys.com> * configure.ac: Disable "sim" directory for arc*-*-*. 2016-09-12 Maciej W. Rozycki <macro@imgtec.com> * configure.ac: Check for the minimum in-tree MPFR version handled.
2017-01-23PR ld/20828: Work around RISC-V failuresMaciej W. Rozycki2-0/+6
Complement commit 81ff47b3a546 ("PR ld/20828: Fix linker script symbols wrongly forced local with section GC") and add `.plt' to the list of output sections created, fixing: FAIL: PR ld/20828 dynamic symbols with section GC (auxiliary shared library) FAIL: PR ld/20828 dynamic symbols with section GC (plain) FAIL: PR ld/20828 dynamic symbols with section GC (version script) failures with `riscv32-elf', `riscv32-linux', `riscv64-elf' and `riscv64-linux' targets caused by LD crashing in the absence of such a section. ld/ PR ld/20828 * testsuite/ld-elf/pr20828.ld: Add `.plt'.
2017-01-23PR ld/20828: Remove leading `_' from symbols used in testsMaciej W. Rozycki6-14/+24
Complement commit 81ff47b3a546 ("PR ld/20828: Fix linker script symbols wrongly forced local with section GC") and remove the leading underscore from `_fdata' and `_edata' symbols used in tests, fixing a: FAIL: PR ld/20828 dynamic symbols with section GC (version script) failure with targets such as: `bfin-elf', `bfin-uclinux', `metag-elf', `metag-linux' `mn10300-elf', `sh-elf', `sh64-elf', and possibly other ones, that have `_' set (with `elf_symbol_leading_char') as the leading character for symbols. As from commit 93252b1cf41a ("bfd/ld: handle ABI prefixes in version scripts") these targets strip the leading underscore before applying version script rules, because the (default) syntax for symbol names is that of the C language rather than their low-level symbol table encoding. ld/ PR ld/20828 * testsuite/ld-elf/pr20828.ld: Rename `_fdata' and `_edata' to `fdata' and `edata' respectively. * testsuite/ld-elf/pr20828.ver: Adjust accordingly. * testsuite/ld-elf/pr20828-a.sd: Likewise. * testsuite/ld-elf/pr20828-b.sd: Likewise. * testsuite/ld-elf/pr20828-c.sd: Likewise.
2017-01-23PR ld/20828: Relax symbol ordering in testsMaciej W. Rozycki5-8/+18
Complement commit 81ff47b3a546 ("PR ld/20828: Fix linker script symbols wrongly forced local with section GC") and make tests check for the presence of global `_fdata' and `_edata' symbols separately, removing any dependency on symbol table ordering for tests to succeed and removing: FAIL: PR ld/20828 dynamic symbols with section GC (auxiliary shared library) FAIL: PR ld/20828 dynamic symbols with section GC (plain) failures with the `x86_64-solaris2' target, which has additional intervening entries: Symbol table '.dynsym' contains 6 entries: Num: Value Size Type Bind Vis Ndx Name 0: 0000000000000000 0 NOTYPE LOCAL DEFAULT UND 1: 0000000000000000 0 NOTYPE GLOBAL DEFAULT 1 _fdata 2: 0000000000000000 0 OBJECT GLOBAL DEFAULT 1 _DYNAMIC 3: 0000000000000000 0 OBJECT GLOBAL DEFAULT ABS _PROCEDURE_LINKAGE_TABLE_ 4: 0000000000000000 0 NOTYPE GLOBAL DEFAULT 1 _edata 5: 00000000000001b8 0 OBJECT GLOBAL DEFAULT 4 _GLOBAL_OFFSET_TABLE_ Rename dump pattern files accordingly for consistency. ld/ PR ld/20828 * testsuite/ld-elf/pr20828-1.sd: Remove test. * testsuite/ld-elf/pr20828-a.sd: New test. * testsuite/ld-elf/pr20828-2a.sd: Rename test to... * testsuite/ld-elf/pr20828-b.sd: ... this. * testsuite/ld-elf/pr20828-2b.sd: Rename test to... * testsuite/ld-elf/pr20828-c.sd: ... this. * testsuite/ld-elf/shared.exp: Adjust accordingly.
2017-01-23[ld, testsuite] Honor cflags when GCC used as linker driverJiong Wang3-2/+28
ld/ * testsuite/lib/ld-lib.exp (run_ld_link_exec_tests): Append board_cflags as gcc is used as linker driver. * testsuite/ld-unique/unique.exp: Likewise
2017-01-23Automatic date update in version.inGDB Administrator1-1/+1
2017-01-22Automatic date update in version.inGDB Administrator1-1/+1
2017-01-21Document the GDB 7.12.1 release in gdb/ChangeLogJoel Brobecker1-0/+4
gdb/ChangeLog: GDB 7.12.1 released.
2017-01-20Fix Py_DECREF being executed without holding the GILSimon Marchi3-8/+14
When the gdbpy_ref objects get destroyed, they call Py_DECREF to decrement the reference counter of the python object they hold a reference to. Any time we call into the Python API, we should be holding the GIL. The gdbpy_enter object does that for us in an RAII-fashion. However, if gdbpy_enter is declared after a gdbpy_ref object in a function, gdbpy_enter's destructor will be called (and the GIL will be released) before gdbpy_ref's destructor is called. Therefore, we will end up calling Py_DECREF without holding the GIL. This became obvious with Python 3.6, where memory management functions have asserts to make sure that the GIL is held. This was exposed by tests py-as-string.exp, py-function.exp and py-xmethods. For example: (gdb) p $_as_string(enum_valid) Fatal Python error: Python memory allocator called without holding the GIL Current thread 0x00007f7f7b21c780 (most recent call first): [1] 18678 abort (core dumped) ./gdb -nx testsuite/outputs/gdb.python/py-as-string/py-as-string #0 0x00007ffff618bc37 in raise () from /lib/x86_64-linux-gnu/libc.so.6 #1 0x00007ffff618f028 in abort () from /lib/x86_64-linux-gnu/libc.so.6 #2 0x00007ffff6b104d6 in Py_FatalError (msg=msg@entry=0x7ffff6ba15b8 "Python memory allocator called without holding the GIL") at Python/pylifecycle.c:1457 #3 0x00007ffff6a37a68 in _PyMem_DebugCheckGIL () at Objects/obmalloc.c:1972 #4 0x00007ffff6a3804e in _PyMem_DebugFree (ctx=0x7ffff6e65290 <_PyMem_Debug+48>, ptr=0x24f8830) at Objects/obmalloc.c:1994 #5 0x00007ffff6a38e1d in PyMem_Free (ptr=<optimized out>) at Objects/obmalloc.c:442 #6 0x00007ffff6b866c6 in _PyFaulthandler_Fini () at ./Modules/faulthandler.c:1369 #7 0x00007ffff6b104bd in Py_FatalError (msg=msg@entry=0x7ffff6ba15b8 "Python memory allocator called without holding the GIL") at Python/pylifecycle.c:1431 #8 0x00007ffff6a37a68 in _PyMem_DebugCheckGIL () at Objects/obmalloc.c:1972 #9 0x00007ffff6a3804e in _PyMem_DebugFree (ctx=0x7ffff6e652c0 <_PyMem_Debug+96>, ptr=0x7ffff46b6040) at Objects/obmalloc.c:1994 #10 0x00007ffff6a38f55 in PyObject_Free (ptr=<optimized out>) at Objects/obmalloc.c:503 #11 0x00007ffff6a5f27e in unicode_dealloc (unicode=unicode@entry=0x7ffff46b6040) at Objects/unicodeobject.c:1794 #12 0x00007ffff6a352a9 in _Py_Dealloc (op=0x7ffff46b6040) at Objects/object.c:1786 #13 0x000000000063f28b in gdb_Py_DECREF (op=0x7ffff46b6040) at /home/emaisin/src/binutils-gdb/gdb/python/python-internal.h:192 #14 0x000000000063fa33 in gdbpy_ref_policy::decref (ptr=0x7ffff46b6040) at /home/emaisin/src/binutils-gdb/gdb/python/py-ref.h:35 #15 0x000000000063fa77 in gdb::ref_ptr<_object, gdbpy_ref_policy>::~ref_ptr (this=0x7fffffffcdf0, __in_chrg=<optimized out>) at /home/emaisin/src/binutils-gdb/gdb/common/gdb_ref_ptr.h:91 #16 0x000000000064d8b8 in fnpy_call (gdbarch=0x2b50010, language=0x115d2c0 <c_language_defn>, cookie=0x7ffff46b7468, argc=1, argv=0x7fffffffcf48) at /home/emaisin/src/binutils-gdb/gdb/python/py-function.c:145 The fix is to place the gdbpy_enter first in the function. I also cleaned up the comments a bit and removed the unnecessary initialization of the value variable. gdb/ChangeLog: * python/py-function.c (fnpy_call): Reorder declarations to have the gdbpy_enter object declared first. * python/py-xmethods.c (gdbpy_get_xmethod_arg_types): Likewise.
2017-01-20Add missing PR reference in ChangeLogSimon Marchi1-0/+1
2017-01-20Fix python-interactive with Python 3.6Simon Marchi3-2/+17
New in v2: - Define PyMem_RawMalloc as PyMem_Malloc for Python < 3.4 and use PyMem_RawMalloc in the code. Since Python 3.4, the callback installed in PyOS_ReadlineFunctionPointer should return a value allocated with PyMem_RawMalloc instead of PyMem_Malloc. The reason is that PyMem_Malloc must be called with the Python Global Interpreter Lock (GIL) held, which is not the case in the context where this function is called. PyMem_RawMalloc was introduced for cases like this. In Python 3.6, it looks like they added an assert to verify that PyMem_Malloc was not called without the GIL. The consequence is that typing anything in the python-interactive mode of gdb crashes the process. The same behavior was observed with the official package on Arch Linux as well as with a manual Python build on Ubuntu 14.04. This is what is shown with a debug build of Python 3.6 (the error with a non-debug build is far less clear): (gdb) pi >>> print(1) Fatal Python error: Python memory allocator called without holding the GIL Current thread 0x00007f1459af8780 (most recent call first): [1] 21326 abort ./gdb and the backtrace: #0 0x00007ffff618bc37 in raise () from /lib/x86_64-linux-gnu/libc.so.6 #1 0x00007ffff618f028 in abort () from /lib/x86_64-linux-gnu/libc.so.6 #2 0x00007ffff6b104d6 in Py_FatalError (msg=msg@entry=0x7ffff6ba15b8 "Python memory allocator called without holding the GIL") at Python/pylifecycle.c:1457 #3 0x00007ffff6a37a68 in _PyMem_DebugCheckGIL () at Objects/obmalloc.c:1972 #4 0x00007ffff6a3804e in _PyMem_DebugFree (ctx=0x7ffff6e65290 <_PyMem_Debug+48>, ptr=0x24f8830) at Objects/obmalloc.c:1994 #5 0x00007ffff6a38e1d in PyMem_Free (ptr=<optimized out>) at Objects/obmalloc.c:442 #6 0x00007ffff6b866c6 in _PyFaulthandler_Fini () at ./Modules/faulthandler.c:1369 #7 0x00007ffff6b104bd in Py_FatalError (msg=msg@entry=0x7ffff6ba15b8 "Python memory allocator called without holding the GIL") at Python/pylifecycle.c:1431 #8 0x00007ffff6a37a68 in _PyMem_DebugCheckGIL () at Objects/obmalloc.c:1972 #9 0x00007ffff6a37aa3 in _PyMem_DebugMalloc (ctx=0x7ffff6e65290 <_PyMem_Debug+48>, nbytes=5) at Objects/obmalloc.c:1980 #10 0x00007ffff6a38d91 in PyMem_Malloc (size=<optimized out>) at Objects/obmalloc.c:418 #11 0x000000000064dbe2 in gdbpy_readline_wrapper (sys_stdin=0x7ffff6514640 <_IO_2_1_stdin_>, sys_stdout=0x7ffff6514400 <_IO_2_1_stdout_>, prompt=0x7ffff4d4f7d0 ">>> ") at /home/emaisin/src/binutils-gdb/gdb/python/py-gdb-readline.c:75 The documentation is very clear about it [1] and it was also mentioned in the "What's New In Python 3.4" page [2]. [1] https://docs.python.org/3/c-api/veryhigh.html#c.PyOS_ReadlineFunctionPointer [2] https://docs.python.org/3/whatsnew/3.4.html#changes-in-the-c-api gdb/ChangeLog: * python/python-internal.h (PyMem_RawMalloc): Define for Python < 3.4. * python/py-gdb-readline.c (gdbpy_readline_wrapper): Use PyMem_RawMalloc instead of PyMem_Malloc.
2017-01-21Automatic date update in version.inGDB Administrator1-1/+1
2017-01-20Fix uppercase test names in gdb.python/py-xmethods.expLuis Machado2-20/+31
Some leftover uppercase test names in py-xmethods.exp. The patch also replaces two "continue" calls with untested calls to make things a bit more clear. gdb/testsuite/ChangeLog: 2017-01-20 Luis Machado <lgustavo@codesourcery.com> * gdb.python/py-xmethods.exp: Fix test names starting with lowercase and add untested calls.
2017-01-20Make gdb.python/python.exp more robustLuis Machado2-1/+20
I noticed gdb.python/python.exp failing on aarch64-elf like so: FAIL: gdb.python/python.exp: Test decode_line func1 line number This particular test expects the line number for func1 to be 19, hardcoded. In my aarch64-elf tests gdb thinks func1 is at line 20, making the test fail. The following patch addresses this by reading the line number information from GDB and comparing it against the python decoded symtab information. gdb/testsuite/ChangeLog: 2017-01-20 Luis Machado <lgustavo@codesourcery.com> * gdb.python/python.exp: Check line number against what GDB thinks the line number is for func1.
2017-01-20Add command to erase all flash memory regionsLuis Machado9-0/+122
Changes in v4: - Replaced phex call with hex_string. Changes in v3: - Addressed comments by Pedro. - Output of memory region size now in hex format. - Misc formatting fixups. - Addressed Simon's comments on formatting. - Adjusted command text in the manual entry. - Fixed up ChangeLog. - Renamed flash_erase_all_command to flash_erase_command. Changes in v2: - Added NEWS entry. - Fixed long lines. - Address printing with paddress. Years ago we contributed flash programming patches upstream. The following patch is a leftover one that complements that functionality by adding a new command to erase all reported flash memory blocks. The command is most useful when we're dealing with flash-enabled targets (mostly bare-metal) and we need to reset the board for some reason. The wiping out of flash memory regions should help the target come up with a known clean state from which the user can load a new image and resume debugging. It is convenient enough to do this from the debugger, and there is also an MI command to expose this functionality to the IDE's. gdb/doc/ChangeLog: 2017-01-20 Mike Wrighton <mike_wrighton@codesourcery.com> Luis Machado <lgustavo@codesourcery.com> * gdb.texinfo (-target-flash-erase): New MI command description. (flash-erase): New CLI command description. gdb/ChangeLog: 2017-01-20 Mike Wrighton <mike_wrighton@codesourcery.com> Luis Machado <lgustavo@codesourcery.com> * NEWS (New commands): Mention flash-erase. (New MI commands): Mention target-flash-erase. * mi/mi-cmds.c (mi_cmd_target_flash_erase): Add target-flash-erase MI command. * mi/mi-cmds.h (mi_cmd_target_flash_erase): New declaration. * mi/mi-main.c (mi_cmd_target_flash_erase): New function. * target.c (flash_erase_command): New function. (initialize_targets): Add new flash-erase command. * target.h (flash_erase_command): New declaration.
2017-01-20[AArch64] Optimize .gnu.hash table size for executableJiong Wang7-0/+53
bfd/ * elfnn-aarch64.c (elf_aarch64_hash_symbol): New function. (elf_backend_hash_symbol): Define. ld/ * testsuite/ld-aarch64/aarch64-elf.exp (aarch64elflinktests): New tests. * testsuite/ld-aarch64/func-in-so.s: New test source file. * testsuite/ld-aarch64/func-sym-hash-opt.s: Likewise. * testsuite/ld-aarch64/func-sym-hash-opt.d: New expected test result.
2017-01-20Updated Irish translation for the opcodes library.Nick Clifton2-458/+813
* po/ga.po: Updated Irish translation.
2017-01-20Fix potential array overrun in x86 assembler.Nick Clifton2-1/+6
* config/tc-i386.c (parse_operands): Check for operand overflow before setting the unspecified bit.
2017-01-20Fix problem in aarch64 gold sources uncovered by Coverty - using sizeof on a ↵Nick Clifton2-2/+13
pointer instead of an array. * aarch64.cc (Stub_template_repertoire): Change ST_E_835769_INSNS from a pointer to an array.
2017-01-20Sync zlib sources with GCC, upgrading to 1.2.10.Nick Clifton97-1747/+8409
Changes in 1.2.10 (2 Jan 2017) - Avoid warnings on snprintf() return value - Fix bug in deflate_stored() for zero-length input - Fix bug in gzwrite.c that produced corrupt gzip files - Remove files to be installed before copying them in Makefile.in - Add warnings when compiling with assembler code Changes in 1.2.9 (31 Dec 2016) - Fix contrib/minizip to permit unzipping with desktop API [Zouzou] - Improve contrib/blast to return unused bytes - Assure that gzoffset() is correct when appending - Improve compress() and uncompress() to support large lengths - Fix bug in test/example.c where error code not saved - Remedy Coverity warning [Randers-Pehrson] - Improve speed of gzprintf() in transparent mode - Fix inflateInit2() bug when windowBits is 16 or 32 - Change DEBUG macro to ZLIB_DEBUG - Avoid uninitialized access by gzclose_w() - Allow building zlib outside of the source directory - Fix bug that accepted invalid zlib header when windowBits is zero - Fix gzseek() problem on MinGW due to buggy _lseeki64 there - Loop on write() calls in gzwrite.c in case of non-blocking I/O - Add --warn (-w) option to ./configure for more compiler warnings - Reject a window size of 256 bytes if not using the zlib wrapper - Fix bug when level 0 used with Z_HUFFMAN or Z_RLE - Add --debug (-d) option to ./configure to define ZLIB_DEBUG - Fix bugs in creating a very large gzip header - Add uncompress2() function, which returns the input size used - Assure that deflateParams() will not switch functions mid-block - Dramatically speed up deflation for level 0 (storing) - Add gzfread(), duplicating the interface of fread() - Add gzfwrite(), duplicating the interface of fwrite() - Add deflateGetDictionary() function - Use snprintf() for later versions of Microsoft C - Fix *Init macros to use z_ prefix when requested - Replace as400 with os400 for OS/400 support [Monnerat] - Add crc32_z() and adler32_z() functions with size_t lengths - Update Visual Studio project files [AraHaan]
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