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PR python/23615 points out that gdb.execute_gdb_command does not
release the Python GIL. This means that, while the gdb command is
running, other Python threads do not run.
This patch solves the problem by introducing a new RAII class that can
be used to temporarily release and then re-acquire the GIL, then puts
this into the appropriate places in execute_gdb_command and
gdbpy_parse_and_eval.
This does not include a test case, because after some research I could
not find a way to write one that was not racy.
gdb/ChangeLog
2019-01-30 Tom Tromey <tom@tromey.com>
PR python/23615:
* python/python.c (execute_gdb_command): Use gdbpy_allow_threads.
(gdbpy_parse_and_eval): Likewise.
* python/python-internal.h (gdbpy_allow_threads): New class.
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PR ld/24008
* testsuite/ld-scripts/defined.exp: Run pr24008.
* testsuite/ld-scripts/pr24008.d: New file.
* testsuite/ld-scripts/pr24008.map: Likewise.
* testsuite/ld-scripts/pr24008.s: Likewise.
* testsuite/ld-scripts/pr24008.t: Likewise.
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The test is already skipped on PowerPC and Aarch64 because it's invalid.
* testsuite/ld-ifunc/ifunc.exp: Skip pr23169 on SPARC.
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xtensa gas chokes on 8/16 bit data entries representing constant symbols
because it leaves BFD_RELOC_8/BFD_RELOC_16 fixups for which xtensa BFD
cannot emit relocations. Resolve fixups for constant symbols in
md_apply_fix.
gas/
2019-01-28 Max Filippov <jcmvbkbc@gmail.com>
* config/tc-xtensa.c (md_apply_fix): Mark fixups for constant
symbols as done in md_apply_fix.
* testsuite/gas/all/forward.d: Don't XFAIL for xtensa.
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Replace individual calls to trad_frame_set_reg_addr for the general
purpose and floating point registers in signal trampoline frames used
by FreeBSD/aarch64 and FreeBSD/arm with calls to
trad_frame_set_reg_addr using the register maps for the corresponding
register sets.
gdb/ChangeLog:
* aarch64-fbsd-tdep.c (aarch64_fbsd_gregmap)
(aarch64_fbsd_fpregmap): Move earlier.
(AARCH64_MCONTEXT_REG_SIZE, AARCH64_MCONTEXT_FPREG_SIZE): Delete.
(aarch64_fbsd_sigframe_init): Use trad_frame_set_reg_regmap
instead of individual calls to trad_frame_set_reg_addr.
* arm-fbsd-tdep.c (arm_fbsd_gregmap, arm_fbsd_vfpregmap): Move
earlier.
(ARM_MCONTEXT_REG_SIZE, ARM_MCONTEXT_VFP_REG_SIZE): Delete.
(arm_fbsd_sigframe_init): Use trad_frame_set_reg_regmap
instead of individual calls to trad_frame_set_reg_addr.
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This reverts commit f084d335110408aa08ea06c7cb217ae19697db3d.
Accidently pushed. Reverted.
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Fedora Rawhide has just switched to GCC9, and now GDB doesn't compile
because of a BFD warning:
BUILDSTDERR: ../../bfd/elf32-arm.c: In function 'elf32_arm_final_link_relocate':
BUILDSTDERR: ../../bfd/elf32-arm.c:10907:10: error: absolute value function 'labs' given an argument of type 'bfd_signed_vma' {aka 'long long int'} but has parameter of type 'long int' which may cause truncation of value [-Werror=absolute-value]
BUILDSTDERR: 10907 | value = labs (relocation);
BUILDSTDERR: | ^~~~
You can take a look at the full build log here:
https://kojipkgs.fedoraproject.org//work/tasks/4828/32174828/build.log
The fix is (apparently) simple: instead of using 'labs', we should use
'llabs', since we're passing a 'bfd_signed_vma' to it, which is at
least a 'long long int', as far as I have checked. This is what this
patch does.
bfd/ChangeLog:
2019-01-25 Sergio Durigan Junior <sergiodj@redhat.com>
* elf32-arm.c (elf32_arm_final_link_relocate): Use 'llabs' instead
of 'labs' (and fix GCC warning).
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The GDB wiki page has a much better contribution checklist than
that in the GDB CONTRIBUTE file. In addition, the wiki is easier
to keep up to date with current processes.
Reduce the CONTRIBUTE file down to a short paragraph followed by
a link to the contribution process. This also ensures anyone
reading the CONTRIBUTE file for a given release has access to the
latest processes.
gdb/ChangeLog:
* CONTRIBUTE: Replace contribution list with wiki link.
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The recent BP/WP changes for AArch64 swapping the order in add_lwp()
so that the process was added before the lwp. This was due to the lwp
creation requiring the process data.
This also needs changing in linux_attach().
Fixes gdb.server/ext-attach.exp on Aarch64.
(This regression was hidden due to the racy nature of the gdb.server
tests - now they are no longer racy it'll be easier to spot. Also
checked X86).
gdb/gdbserver/ChangeLog:
2019-01-25 Alan Hayward <alan.hayward@arm.com>
* linux-low.c (linux_attach): Add process before lwp.
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PR 24008
* ldexp.h (lang_phase_type): Add lang_fixed_phase_enum.
* ldexp.c (fold_name): Move expld.assign_name check later to
avoid an extra lookup.
(exp_fold_tree_1): When lang_fixed_phase_enum, don't change symbol
values, and don't clear expld.assign_name.
* ldlang.c (lang_map): Set expld.phase to lang_fixed_phase_enum.
(print_assignment): Resolve entire assignment expression.
Don't access symbol u.def unless symbol is defined.
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* configure.ac (ac_checking): Set from bfd/development.sh
development variable.
* configure: Regenerate.
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I noticed that py-finish-breakpoint.exp had two calls to
skip_python_tests, in quick succession. This patch removes the second
one.
gdb/testsuite/ChangeLog
2019-01-27 Tom Tromey <tom@tromey.com>
* gdb.python/py-finish-breakpoint.exp: Remove duplicate call to
skip_python_tests.
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Simon pointed out that the "common/" include change in gdb broke the
sim build. The problem was that the sim was using gdb's
create-version.sh, which changed.
This patch copies create-version.sh to the sim, so that it can
generate "version.c" in a way that works in the sim build.
Tested by rebuilding.
sim/common/ChangeLog
2019-01-26 Tom Tromey <tom@tromey.com>
* Make-common.in (version.c): Use sim's create-version.sh.
* create-version.sh: New file.
sim/ppc/ChangeLog
2019-01-26 Tom Tromey <tom@tromey.com>
* Makefile.in (version.c): Use sim's create-version.sh.
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This changes the Makefiles to remove the -I for the common/
subdirectory. This will enforce the rule that includes must use the
'common/filename.h' form.
gdb/ChangeLog
2019-01-25 Tom Tromey <tom@tromey.com>
* Makefile.in (GDB_CFLAGS): Don't add -I for common.
gdb/gdbserver/ChangeLog
2019-01-25 Tom Tromey <tom@tromey.com>
* Makefile.in (INCLUDE_CFLAGS): Don't add -I for common.
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This changes all includes to use the form "common/filename.h" rather
than just "filename.h". This was written by a script.
gdb/ChangeLog
2019-01-25 Tom Tromey <tom@tromey.com>
* xtensa-linux-nat.c: Fix common/ includes.
* xml-support.h: Fix common/ includes.
* xml-support.c: Fix common/ includes.
* x86-linux-nat.c: Fix common/ includes.
* windows-nat.c: Fix common/ includes.
* varobj.h: Fix common/ includes.
* varobj.c: Fix common/ includes.
* value.c: Fix common/ includes.
* valops.c: Fix common/ includes.
* utils.c: Fix common/ includes.
* unittests/xml-utils-selftests.c: Fix common/ includes.
* unittests/utils-selftests.c: Fix common/ includes.
* unittests/unpack-selftests.c: Fix common/ includes.
* unittests/tracepoint-selftests.c: Fix common/ includes.
* unittests/style-selftests.c: Fix common/ includes.
* unittests/string_view-selftests.c: Fix common/ includes.
* unittests/scoped_restore-selftests.c: Fix common/ includes.
* unittests/scoped_mmap-selftests.c: Fix common/ includes.
* unittests/scoped_fd-selftests.c: Fix common/ includes.
* unittests/rsp-low-selftests.c: Fix common/ includes.
* unittests/parse-connection-spec-selftests.c: Fix common/
includes.
* unittests/optional-selftests.c: Fix common/ includes.
* unittests/offset-type-selftests.c: Fix common/ includes.
* unittests/observable-selftests.c: Fix common/ includes.
* unittests/mkdir-recursive-selftests.c: Fix common/ includes.
* unittests/memrange-selftests.c: Fix common/ includes.
* unittests/memory-map-selftests.c: Fix common/ includes.
* unittests/lookup_name_info-selftests.c: Fix common/ includes.
* unittests/function-view-selftests.c: Fix common/ includes.
* unittests/environ-selftests.c: Fix common/ includes.
* unittests/copy_bitwise-selftests.c: Fix common/ includes.
* unittests/common-utils-selftests.c: Fix common/ includes.
* unittests/cli-utils-selftests.c: Fix common/ includes.
* unittests/array-view-selftests.c: Fix common/ includes.
* ui-file.c: Fix common/ includes.
* tui/tui-io.c: Fix common/ includes.
* tracepoint.h: Fix common/ includes.
* tracepoint.c: Fix common/ includes.
* tracefile-tfile.c: Fix common/ includes.
* top.h: Fix common/ includes.
* top.c: Fix common/ includes.
* thread.c: Fix common/ includes.
* target/waitstatus.h: Fix common/ includes.
* target/waitstatus.c: Fix common/ includes.
* target.h: Fix common/ includes.
* target.c: Fix common/ includes.
* target-memory.c: Fix common/ includes.
* target-descriptions.c: Fix common/ includes.
* symtab.h: Fix common/ includes.
* symfile.c: Fix common/ includes.
* stap-probe.c: Fix common/ includes.
* spu-linux-nat.c: Fix common/ includes.
* sparc-nat.c: Fix common/ includes.
* source.c: Fix common/ includes.
* solib.c: Fix common/ includes.
* solib-target.c: Fix common/ includes.
* ser-unix.c: Fix common/ includes.
* ser-tcp.c: Fix common/ includes.
* ser-pipe.c: Fix common/ includes.
* ser-base.c: Fix common/ includes.
* selftest-arch.c: Fix common/ includes.
* s12z-tdep.c: Fix common/ includes.
* rust-exp.y: Fix common/ includes.
* rs6000-aix-tdep.c: Fix common/ includes.
* riscv-tdep.c: Fix common/ includes.
* remote.c: Fix common/ includes.
* remote-notif.h: Fix common/ includes.
* remote-fileio.h: Fix common/ includes.
* remote-fileio.c: Fix common/ includes.
* regcache.h: Fix common/ includes.
* regcache.c: Fix common/ includes.
* record-btrace.c: Fix common/ includes.
* python/python.c: Fix common/ includes.
* python/py-type.c: Fix common/ includes.
* python/py-inferior.c: Fix common/ includes.
* progspace.h: Fix common/ includes.
* producer.c: Fix common/ includes.
* procfs.c: Fix common/ includes.
* proc-api.c: Fix common/ includes.
* printcmd.c: Fix common/ includes.
* ppc-linux-nat.c: Fix common/ includes.
* parser-defs.h: Fix common/ includes.
* osdata.c: Fix common/ includes.
* obsd-nat.c: Fix common/ includes.
* nat/x86-linux.c: Fix common/ includes.
* nat/x86-linux-dregs.c: Fix common/ includes.
* nat/x86-dregs.h: Fix common/ includes.
* nat/x86-dregs.c: Fix common/ includes.
* nat/ppc-linux.c: Fix common/ includes.
* nat/mips-linux-watch.h: Fix common/ includes.
* nat/mips-linux-watch.c: Fix common/ includes.
* nat/linux-waitpid.c: Fix common/ includes.
* nat/linux-ptrace.h: Fix common/ includes.
* nat/linux-ptrace.c: Fix common/ includes.
* nat/linux-procfs.c: Fix common/ includes.
* nat/linux-personality.c: Fix common/ includes.
* nat/linux-osdata.c: Fix common/ includes.
* nat/linux-namespaces.c: Fix common/ includes.
* nat/linux-btrace.h: Fix common/ includes.
* nat/linux-btrace.c: Fix common/ includes.
* nat/fork-inferior.c: Fix common/ includes.
* nat/amd64-linux-siginfo.c: Fix common/ includes.
* nat/aarch64-sve-linux-ptrace.c: Fix common/ includes.
* nat/aarch64-linux.c: Fix common/ includes.
* nat/aarch64-linux-hw-point.h: Fix common/ includes.
* nat/aarch64-linux-hw-point.c: Fix common/ includes.
* namespace.h: Fix common/ includes.
* mips-linux-tdep.c: Fix common/ includes.
* minsyms.c: Fix common/ includes.
* mi/mi-parse.h: Fix common/ includes.
* mi/mi-main.c: Fix common/ includes.
* mi/mi-cmd-env.c: Fix common/ includes.
* memrange.h: Fix common/ includes.
* memattr.c: Fix common/ includes.
* maint.h: Fix common/ includes.
* maint.c: Fix common/ includes.
* main.c: Fix common/ includes.
* machoread.c: Fix common/ includes.
* location.c: Fix common/ includes.
* linux-thread-db.c: Fix common/ includes.
* linux-nat.c: Fix common/ includes.
* linux-fork.c: Fix common/ includes.
* inline-frame.c: Fix common/ includes.
* infrun.c: Fix common/ includes.
* inflow.c: Fix common/ includes.
* inferior.h: Fix common/ includes.
* inferior.c: Fix common/ includes.
* infcmd.c: Fix common/ includes.
* inf-ptrace.c: Fix common/ includes.
* inf-child.c: Fix common/ includes.
* ia64-linux-nat.c: Fix common/ includes.
* i387-tdep.c: Fix common/ includes.
* i386-tdep.c: Fix common/ includes.
* i386-linux-tdep.c: Fix common/ includes.
* i386-linux-nat.c: Fix common/ includes.
* i386-go32-tdep.c: Fix common/ includes.
* i386-fbsd-tdep.c: Fix common/ includes.
* i386-fbsd-nat.c: Fix common/ includes.
* guile/scm-type.c: Fix common/ includes.
* guile/guile.c: Fix common/ includes.
* go32-nat.c: Fix common/ includes.
* gnu-nat.c: Fix common/ includes.
* gdbthread.h: Fix common/ includes.
* gdbarch-selftests.c: Fix common/ includes.
* gdb_usleep.c: Fix common/ includes.
* gdb_select.h: Fix common/ includes.
* gdb_bfd.c: Fix common/ includes.
* gcore.c: Fix common/ includes.
* fork-child.c: Fix common/ includes.
* findvar.c: Fix common/ includes.
* fbsd-nat.c: Fix common/ includes.
* event-top.c: Fix common/ includes.
* event-loop.c: Fix common/ includes.
* dwarf2read.c: Fix common/ includes.
* dwarf2loc.c: Fix common/ includes.
* dwarf2-frame.c: Fix common/ includes.
* dwarf-index-cache.c: Fix common/ includes.
* dtrace-probe.c: Fix common/ includes.
* disasm-selftests.c: Fix common/ includes.
* defs.h: Fix common/ includes.
* csky-tdep.c: Fix common/ includes.
* cp-valprint.c: Fix common/ includes.
* cp-support.h: Fix common/ includes.
* cp-support.c: Fix common/ includes.
* corelow.c: Fix common/ includes.
* completer.h: Fix common/ includes.
* completer.c: Fix common/ includes.
* compile/compile.c: Fix common/ includes.
* compile/compile-loc2c.c: Fix common/ includes.
* compile/compile-cplus-types.c: Fix common/ includes.
* compile/compile-cplus-symbols.c: Fix common/ includes.
* command.h: Fix common/ includes.
* cli/cli-dump.c: Fix common/ includes.
* cli/cli-cmds.c: Fix common/ includes.
* charset.c: Fix common/ includes.
* build-id.c: Fix common/ includes.
* btrace.h: Fix common/ includes.
* btrace.c: Fix common/ includes.
* breakpoint.h: Fix common/ includes.
* breakpoint.c: Fix common/ includes.
* ax.h:
(enum agent_op): Fix common/ includes.
* ax-general.c (struct aop_map): Fix common/ includes.
* ax-gdb.c: Fix common/ includes.
* auxv.c: Fix common/ includes.
* auto-load.c: Fix common/ includes.
* arm-tdep.c: Fix common/ includes.
* arch/riscv.c: Fix common/ includes.
* arch/ppc-linux-common.c: Fix common/ includes.
* arch/i386.c: Fix common/ includes.
* arch/arm.c: Fix common/ includes.
* arch/arm-linux.c: Fix common/ includes.
* arch/arm-get-next-pcs.c: Fix common/ includes.
* arch/amd64.c: Fix common/ includes.
* arch/aarch64.c: Fix common/ includes.
* arch/aarch64-insn.c: Fix common/ includes.
* arch-utils.c: Fix common/ includes.
* amd64-windows-tdep.c: Fix common/ includes.
* amd64-tdep.c: Fix common/ includes.
* amd64-sol2-tdep.c: Fix common/ includes.
* amd64-obsd-tdep.c: Fix common/ includes.
* amd64-nbsd-tdep.c: Fix common/ includes.
* amd64-linux-tdep.c: Fix common/ includes.
* amd64-linux-nat.c: Fix common/ includes.
* amd64-fbsd-tdep.c: Fix common/ includes.
* amd64-fbsd-nat.c: Fix common/ includes.
* amd64-dicos-tdep.c: Fix common/ includes.
* amd64-darwin-tdep.c: Fix common/ includes.
* agent.c: Fix common/ includes.
* ada-lang.h: Fix common/ includes.
* ada-lang.c: Fix common/ includes.
* aarch64-tdep.c: Fix common/ includes.
gdb/gdbserver/ChangeLog
2019-01-25 Tom Tromey <tom@tromey.com>
* win32-low.c: Fix common/ includes.
* win32-i386-low.c: Fix common/ includes.
* tracepoint.c: Fix common/ includes.
* thread-db.c: Fix common/ includes.
* target.h: Fix common/ includes.
* symbol.c: Fix common/ includes.
* spu-low.c: Fix common/ includes.
* server.h: Fix common/ includes.
* server.c: Fix common/ includes.
* remote-utils.c: Fix common/ includes.
* regcache.h: Fix common/ includes.
* regcache.c: Fix common/ includes.
* nto-x86-low.c: Fix common/ includes.
* notif.h: Fix common/ includes.
* mem-break.h: Fix common/ includes.
* lynx-low.c: Fix common/ includes.
* lynx-i386-low.c: Fix common/ includes.
* linux-x86-tdesc-selftest.c: Fix common/ includes.
* linux-x86-low.c: Fix common/ includes.
* linux-low.c: Fix common/ includes.
* inferiors.h: Fix common/ includes.
* i387-fp.c: Fix common/ includes.
* hostio.c: Fix common/ includes.
* hostio-errno.c: Fix common/ includes.
* gdbthread.h: Fix common/ includes.
* gdbreplay.c: Fix common/ includes.
* fork-child.c: Fix common/ includes.
* event-loop.c: Fix common/ includes.
* ax.c:
(enum gdb_agent_op): Fix common/ includes.
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This changes create-version.sh to have the generated file use
common/version.h as the file name.
gdb/ChangeLog
2019-01-25 Tom Tromey <tom@tromey.com>
* common/create-version.sh: Use common/version.h.
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st2zg
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This patch is part of a series of patches to introduce a few changes to the
Armv8.5-A Memory Tagging Extension. This patch updates the st*g instructions
to use a previously reserved field for a new register operand. Thus the
new versions of the instructions are as follows:
- STG Xt, [<Xn|SP>, #<simm>]
- STG Xt, [<Xn|SP>, #<simm>]!
- STG Xt, [<Xn|SP>], #<simm>
- STZG Xt, [<Xn|SP>, #<simm>]
- STZG Xt, [<Xn|SP>, #<simm>]!
- STZG Xt, [<Xn|SP>], #<simm>
- ST2G Xt, [<Xn|SP>, #<simm>]
- ST2G Xt, [<Xn|SP>, #<simm>]!
- ST2G Xt, [<Xn|SP>], #<simm>
- STZ2G Xt, [<Xn|SP>, #<simm>]
- STZ2G Xt, [<Xn|SP>, #<simm>]!
- STZ2G Xt, [<Xn|SP>], #<simm>
Committed on behalf of Sudakshina Das.
*** gas/ChangeLog ***
* config/tc-aarch64.c (warn_unpredictable_ldst): Exempt
stg, st2g, stzg and stz2g from Xt == Xn with writeback warning.
* testsuite/gas/aarch64/armv8_5-a-memtag.d: Change tests for
stg, stzg, st2g and stz2g.
* testsuite/gas/aarch64/armv8_5-a-memtag.s: Likewise.
* testsuite/gas/aarch64/illegal-memtag.l: Likewise.
* testsuite/gas/aarch64/illegal-memtag.s: Likewise.
*** opcodes/ChangeLog ***
* aarch64-tbl.h (QL_LDST_AT): Update macro.
(aarch64_opcode): Change encoding for stg, stzg
st2g and st2zg.
* aarch64-asm-2.c: Regenerated.
* aarch64-dis-2.c: Regenerated.
* aarch64-opc-2.c: Regenerated.
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This patch is part of a series of patches to introduce a few changes to the
Armv8.5-A Memory Tagging Extension. This patch adds the new STZGM instruction.
STGZM Xt, [<Xn|SP>]
Committed on behalf of Sudakshina Das.
*** gas/ChangeLog ***
* testsuite/gas/aarch64/armv8_5-a-memtag.d: New tests for stzgm.
* testsuite/gas/aarch64/armv8_5-a-memtag.s: Likewise.
* testsuite/gas/aarch64/illegal-memtag.l: Likewise.
* testsuite/gas/aarch64/illegal-memtag.s: Likewise.
*** opcodes/ChangeLog ***
* aarch64-asm-2.c: Regenerated.
* aarch64-dis-2.c: Likewise.
* aarch64-opc-2.c: Likewise.
* aarch64-tbl.h (aarch64_opcode): Add new stzgm.
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Extension.
This patch is part of a series of patches to introduce a few changes to the
Armv8.5-A Memory Tagging Extension. This patch removes the LDGV and STGV
instructions. These instructions needed special infrastructure to support
[base]! style for addressing mode. That is also removed now.
Committed on behalf of Sudakshina Das.
*** gas/ChangeLog ***
* config/tc-aarch64.c (parse_address_main): Remove support for
[base]! address expression.
(parse_operands): Remove support for AARCH64_OPND_ADDR_SIMPLE_2.
(warn_unpredictable_ldst): Remove support for ldstgv_indexed.
* testsuite/gas/aarch64/armv8_5-a-memtag.d: Remove tests for ldgv
and stgv.
* testsuite/gas/aarch64/armv8_5-a-memtag.s: Likewise.
* testsuite/gas/aarch64/illegal-memtag.l: Likewise.
* testsuite/gas/aarch64/illegal-memtag.s: Likewise.
*** include/ChangeLog ***
* opcode/aarch64.h (enum aarch64_opnd): Remove
AARCH64_OPND_ADDR_SIMPLE_2.
(enum aarch64_insn_class): Remove ldstgv_indexed.
*** opcodes/ChangeLog ***
* aarch64-asm.c (aarch64_ins_addr_simple_2): Remove.
* aarch64-asm.h (ins_addr_simple_2): Likeiwse.
* aarch64-dis.c (aarch64_ext_addr_simple_2): Likewise.
* aarch64-dis.h (ext_addr_simple_2): Likewise.
* aarch64-opc.c (operand_general_constraint_met_p): Remove
case for ldstgv_indexed.
(aarch64_print_operand): Remove case for AARCH64_OPND_ADDR_SIMPLE_2.
* aarch64-tbl.h (struct aarch64_opcode): Remove ldgv and stgv.
(AARCH64_OPERANDS): Remove ADDR_SIMPLE_2.
* aarch64-asm-2.c: Regenerated.
* aarch64-dis-2.c: Regenerated.
* aarch64-opc-2.c: Regenerated.
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with a zero name size.
PR 24131
* readelf.c (process_notes_at): Prevent an illegal memory access
when the note's namesize is zero.
(decode_tic6x_unwind_bytecode): Add code to handle the case where
no registers are specified in a frame pop instruction.
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sub-directories
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PR gas/23940
* macro.c (getstring): Check array bound before accessing.
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An assertion that can be triggered by user input is wrong, so remove
it. I believe the NUL would have been accepted before the PR20902
patch.
PR 20902
PR 24125
* read.c (stringer): Delete assertion.
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This replaces the pointer and length parameters of target_pass_signals
and target_program_signals with a gdb::array_view parameter, and fixes
the fallout.
In infrun.c, the signal_stop, signal_print, signal_program,
signal_catch, signal_pass globals are currently pointers to
heap-allocated memory. I see no point in that, so I converted them to
arrays. This allows simplifying the calls to
target_pass_signals/target_program_signals, since we can pass the
array directly, which can implicitly convert to gdb::array_view.
gdb/ChangeLog:
2019-01-24 Pedro Alves <palves@redhat.com>
* infrun.c (signal_stop, signal_print, signal_program)
(signal_catch, signal_pass): Now arrays instead of pointers.
(update_signals_program_target, do_target_resume)
(signal_catch_update, handle_command, _initialize_infrun): Adjust.
* linux-nat.c (linux_nat_target::pass_signals)
(linux_nat_target::create_inferior, linux_nat_target::attach):
Adjust.
* linux-nat.h (linux_nat_target::pass_signals): Adjust.
* nto-procfs.c (nto_procfs_target::pass_signals): Adjust.
* procfs.c (procfs_target::pass_signals): Adjust.
* record-full.c (record_full_target::resume): Adjust.
* remote.c (remote_target::pass_signals)
(remote_target::program_signals): Adjust.
* target-debug.h (target_debug_print_signals): Now takes a
gdb::array_view as parameter. Adjust.
* target.h (target_ops) <pass_signals, program_signals>: Replace
pointer and length parameters with gdb::array_view.
(target_pass_signals, target_program_signals): Likewise.
* target-delegates.c: Regenerate.
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This fixes the following build error with clang/libc++, reported at
<https://sourceware.org/ml/gdb-patches/2019-01/msg00537.html>:
(...)
In file included from breakpoint.c:34:
In file included from ./inferior.h:54:
./common/forward-scope-exit.h:98:7: error: no matching constructor for
initialization of 'decltype(std::bind(&delete_longjmp_breakpoint,
std::declval<int>()))' (aka '__bind<void (*)(int), int>')
: m_bind_function (std::bind (function, args...))
^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./common/gdb_optional.h:155:19: note: in instantiation of member
function 'detail::forward_scope_exit<void (int),
&delete_longjmp_breakpoint, void (int)>::forward_scope_exit' requested
here
new (&m_item) T (std::forward<Args>(args)...);
^
breakpoint.c:11127:18: note: in instantiation of function template
specialization 'gdb::optional<detail::forward_scope_exit<void (int),
&delete_longjmp_breakpoint, void (int)> >::emplace<int &>' requested
here
lj_deleter.emplace (thread);
^
/Applications/Xcode-10.1.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/include/c++/v1/functional:2220:7:
note: candidate constructor (the implicit copy constructor) not
viable: no known conversion from '__bind<[...], int &>' to 'const
__bind<[...], int>' for 1st argument
class __bind
^
(...)
I don't really know why I ended up with a copy here. We can just pass
the arguments directly to the being-constructed bind.
gdb/ChangeLog:
2019-01-24 Pedro Alves <palves@redhat.com>
* common/forward-scope-exit.h
(forward_scope_exit::forward_scope_exit): Pass arguments to
m_bind_function directly, instead of creating a std::bind and
copying that.
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Static members in C++ structs are global data and therefore not part of the
list of struct members considered for passing in registers.
Note the corresponding code in GCC (from which the GDB AAPCS code is based)
does not have any static member checks due to the static members not being
part of the struct type at that point.
Extend gdb.base/infcall-nested-structs.exp to test structs with static
members when compiled for C++. XFAIL more cases for x86_64 (see gdb/24104).
For completeness, ensure some test cases have both empty structures and
static members.
Also fixes gdb.dwarf2/dw2-cp-infcall-ref-static.exp.
gdb/ChangeLog:
* aarch64-tdep.c (aapcs_is_vfp_call_or_return_candidate_1): Check
for static members.
(pass_in_v_vfp_candidate): Likewise.
gdb/testsuite/ChangeLog:
* gdb.base/infcall-nested-structs.c (struct struct_static_02_01):
New structure.
(struct struct_static_02_02): Likewise.
(struct struct_static_02_03): Likewise.
(struct struct_static_02_04): Likewise.
(struct struct_static_04_01): Likewise.
(struct struct_static_04_02): Likewise.
(struct struct_static_04_03): Likewise.
(struct struct_static_04_04): Likewise.
(struct struct_static_06_01): Likewise.
(struct struct_static_06_02): Likewise.
(struct struct_static_06_03): Likewise.
(struct struct_static_06_04): Likewise.
(cmp_struct_static_02_01): Likewise.
(cmp_struct_static_02_02): Likewise.
(cmp_struct_static_02_03): Likewise.
(cmp_struct_static_02_04): Likewise.
(cmp_struct_static_04_01): Likewise.
(cmp_struct_static_04_02): Likewise.
(cmp_struct_static_04_03): Likewise.
(cmp_struct_static_04_04): Likewise.
(cmp_struct_static_06_01): Likewise.
(cmp_struct_static_06_02): Likewise.
(cmp_struct_static_06_03): Likewise.
(cmp_struct_static_06_04): Likewise.
(call_all): Test new structs.
* gdb.base/infcall-nested-structs.exp: Likewise.
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This removes the regcache_invalidator class in favor of a scope_exit.
This seems like an improvement (albeit a minor one) because
regcache_invalidator is only used in a single spot.
gdb/ChangeLog:
2019-01-23 Tom Tromey <tom@tromey.com>
Pedro Alves <palves@redhat.com>
* regcache.c (class regcache_invalidator): Remove.
(regcache::raw_write): Use make_scope_exit.
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ui-out.h refers to some cleanup functions that no longer exist. This
updates the reference.
gdb/ChangeLog:
2019-01-23 Tom Tromey <tom@tromey.com>
* ui-out.h (class ui_out_emit_type): Update comment.
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This updates a comment in fetch_inferior_event. The comment refers to
a cleanup that is now a scoped_restore_current_thread.
gdb/ChangeLog:
2019-01-23 Tom Tromey <tom@tromey.com>
* infrun.c (fetch_inferior_event): Update comment.
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This removes the remaining cleanup from fetch_inferior_event,
replacing it with a SCOPE_EXIT. This required introducing a new scope
and reindenting.
gdb/ChangeLog:
2019-01-23 Tom Tromey <tom@tromey.com>
Pedro Alves <palves@redhat.com>
* infrun.c (reinstall_readline_callback_handler_cleanup): Remove
parameter.
(fetch_inferior_event): Use SCOPE_EXIT.
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This removes the cleanup from stop_all_threads, replacing it with a
scope_exit.
gdb/ChangeLog:
2019-01-23 Tom Tromey <tom@tromey.com>
Pedro Alves <palves@redhat.com>
* infrun.c (disable_thread_events): Delete.
(stop_all_threads): Use SCOPE_EXIT.
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This removes clear_symtab_users_cleanup, replacing it with uses of
forward_scope_exit.
gdb/ChangeLog:
2019-01-23 Tom Tromey <tom@tromey.com>
Pedro Alves <palves@redhat.com>
* symfile.c: Include forward-scope-exit.h.
(clear_symtab_users_cleanup): Replace forward declaration with
a FORWARD_SCOPE_EXIT.
(syms_from_objfile_1): Use the forward_scope_exit and
gdb::optional instead of cleanup_function.
(reread_symbols): Use the forward_scope_exit instead of
cleanup_function.
(clear_symtab_users_cleanup): Remove function.
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This removes a cleanup from linux-nat.c, replacing it with a
scope_exit.
gdb/ChangeLog:
2019-01-23 Tom Tromey <tom@tromey.com>
Pedro Alves <palves@redhat.com>
* linux-nat.c: Include scope-exit.h.
(cleanup_target_stop): Remove.
(linux_nat_target::static_tracepoint_markers_by_strid): Use
SCOPE_EXIT.
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This removes cleanup_delete_std_terminate_breakpoint, replacing it
with a use of SCOPE_EXIT.
gdb/ChangeLog:
2019-01-23 Tom Tromey <tom@tromey.com>
Pedro Alves <palves@redhat.com>
* infcall.c (cleanup_delete_std_terminate_breakpoint): Remove.
(call_function_by_hand_dummy): Use SCOPE_EXIT.
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This removes make_bpstat_clear_actions_cleanup, replacing it with uses
of scope_exit.
gdb/ChangeLog:
2019-01-23 Tom Tromey <tom@tromey.com>
Andrew Burgess <andrew.burgess@embecosm.com>
Pedro Alves <palves@redhat.com>
* infrun.c (fetch_inferior_event): Use scope_exit.
* utils.h (make_bpstat_clear_actions_cleanup): Don't declare.
* top.c (execute_command): Use scope_exit.
* breakpoint.c (bpstat_do_actions): Use scope_exit.
* utils.c (do_bpstat_clear_actions_cleanup)
(make_bpstat_clear_actions_cleanup): Remove.
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v3: sorted earlier in the series, and replaces the cleanup in
fetch_inferior_event here too instead of in some other patch.
This removes delete_just_stopped_threads_infrun_breakpoints_cleanup,
replacing it with uses of scope_exit.
gdb/ChangeLog:
2019-01-23 Tom Tromey <tom@tromey.com>
Pedro Alves <palves@redhat.com>
* infrun.c: Include "common/scope-exit.h"
(delete_just_stopped_threads_infrun_breakpoints_cleanup): Remove.
(wait_for_inferior): Use SCOPE_EXIT.
(fetch_inferior_event): Use scope_exit.
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In v3: remove the "have BKPT_CHAIN already discarded" comment too.
The remaining null cleanup in breakpoint.c does not seem to protect
anything, so remove it.
gdb/ChangeLog:
2019-01-23 Tom Tromey <tom@tromey.com>
Pedro Alves <palves@redhat.com>
* breakpoint.c (create_breakpoint): Remove cleanup.
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This removes delete_longjmp_breakpoint_cleanup in favor of forward_scope_exit.
gdb/ChangeLog:
2019-01-23 Tom Tromey <tom@tromey.com>
Andrew Burgess <andrew.burgess@embecosm.com>
Pedro Alves <palves@redhat.com>
* breakpoint.c (until_break_command): Use
delete_longjmp_breakpoint_cleanup class.
* infcmd.c (delete_longjmp_breakpoint_cleanup): Remove function.
(until_next_command): Use delete_longjmp_breakpoint_cleanup class.
* inferior.h: Include forward-scope-exit.h.
(delete_longjmp_breakpoint_cleanup): Replace function declaration
with FORWARD_SCOPE_EXIT type.
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Replace the custom local class with a SCOPE_EXIT.
gdb/ChangeLog:
2019-01-23 Pedro Alves <palves@redhat.com>
* gdbarch-selftests.c (struct on_exit): Use SCOPE_EXIT.
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This reimplements the manually-written scoped_finish_thread_state
class as a forward_scope_exit instantiation. forward_scope_exit has
the same interface as scoped_finish_thread_state, so nothing else has
to change.
A forward_scope_exit is preferred over make_scope_exit here because
infrun.c:normal_stop needs to wrap scoped_finish_thread_state in a
gdb::optional. Since we need the type there, might as well use it
everywhere.
gdb/ChangeLog:
2019-01-23 Pedro Alves <palves@redhat.com>
Andrew Burgess <andrew.burgess@embecosm.com>
* gdbthread.h: Include "common/forward-scope-exit.h".
(scoped_finish_thread_state): Redefine custom class in terms of
forward_scope_exit.
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This adds a template that can be used to automatically instantiate
scope_exit-like types that wrap some cleanup function. The
instantiated type has a ctor that has the same interface as the
wrapped function. While the "magic" is just straight C++11, the
intended use is via the FORWARD_SCOPE_EXIT macro, which is a minimal
macro that avoids spelling out the wrapped function name more than
once:
void some_function (int foo, object *bar);
using some_function_fce = FORWARD_SCOPE_EXIT (some_function);
some_function_fce cleanup (some_int, some_obj_ptr);
The above runs:
some_function (some_int, some_obj_ptr);
at scope exit.
This is mainly useful as opposed to a simpler SCOPE_EXIT when you need
to:
- cancel the scope_exit, in which case you need the object's name
- wrap the scope_exit in a gdb::optional, in which case you need the
scope_exit's type in advance.
More details in the code comments.
gdb/ChangeLog:
2019-01-23 Pedro Alves <palves@redhat.com>
Andrew Burgess <andrew.burgess@embecosm.com>
* common/forward-scope-exit.h: New file.
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