Change cpu for vptestnmd and vptestnmq instructions.

In latest release of AVX512 spec
http://download-software.intel.com/sites/default/files/managed/50/1a/319433-018.pdf
Vptestnmq and vptestnmq instructions have CPUID AVX512F, not AVX512CD.
This patch fixes it.

opcodes/

        * i386-opc.tbl: Change CPU of vptestnmq, vptestnmd from CpuAVX512CD,
        to CpuAVX512F.
        * i386-tbl.h: Regenerate.

gas/testsuite/

        * gas/i386/avx512cd-intel.d: Remove vptestnmq, vptestnmd.
        * gas/i386/avx512cd.s: Ditto.
        * gas/i386/avx512cd.d: Ditto.
        * gas/i386/x86-64-avx512cd-intel.d: Ditto.
        * gas/i386/x86-64-avx512cd.s: Ditto.
        * gas/i386/x86-64-avx512cd.d: Ditto.
        * gas/i386/avx512f-intel.d: Add vptestnmq, vptestnmd.
        * gas/i386/avx512f.s: Ditto.
        * gas/i386/avx512f.d: Ditto.
        * gas/i386/x86-64-avx512f-intel.d: Ditto.
        * gas/i386/x86-64-avx512f.s: Ditto.
        * gas/i386/x86-64-avx512f.d: Ditto.
windows-nat.c: Bring comment back regarding handling of DLL load events.

This patch brings back a comment that got stripped down a bit too much
during a recent change.

gdb/ChangeLog:

        * windows-nat.c (handle_unload_dll): Add function documentation.
        (do_initial_windows_stuff): Add comment explaining why we wait
        until after inferior initialization has finished before
        processing all DLLs.
Fix PR symtab/16581

	* dwarf2read.c (struct die_info): New member in_process.
	(reset_die_in_process): New function.
	(process_die): Set it at the start, reset when returning.
	(inherit_abstract_dies): Only call process_die if origin_child_die
	not already being processed.

	testsuite/
	* gdb.dwarf2/dw2-icycle.S: New file.
	* gdb.dwarf2/dw2-icycle.c: New file.
	* gdb.dwarf2/dw2-icycle.exp: New file.
fix whitespace in previous commit
Move containing_scm arg from gdbscm_fill_eqable_gsmob_ptr_slot
to gdbscm_init_eqable_gsmob.

	* guile/scm-gsmob.c (gdbscm_init_eqable_gsmob): New arg containing_scm.
	All callers updated.
	(gdbscm_fill_eqable_gsmob_ptr_slot): Delete arg containing_scm.
	All callers updated.
	* guile/guile-internal.h (gdbscm_init_eqable_gsmob): Update.
	(gdbscm_fill_eqable_gsmob_ptr_slot): Update.
Simplify .section in dw2-icycle.S

The arm-elf assembler chokes on the extra parameters in the .section
pseudo-op, so this patch removes them.

gdb/testsuite/ChangeLog:

        * gdb.dwarf2/dw2-icycle.S: Remove second and third parameters
        in .section pseudo-op.
* inferiors.c (get_first_inferior): Fix buglet.
minor cleanup in dbxread.c

I happened to notice that last_o_file_start is write-only in
read_dbx_symtab.  This patch removes it.  Tested by rebuilding.

2014-02-20  Tom Tromey  <tromey@redhat.com>

	* dbxread.c (read_dbx_symtab): Remove last_o_file_start.
Remove all_lwps global.

	* inferiors.h (ptid_of): Move here from linux-low.h.
	(pid_of, lwpid_of): Ditto.
	* linux-aarch64-low.c (debug_reg_change_callback): Update, "entry"
	parameter is a struct thread_info * now.
	(aarch64_notify_debug_reg_change): Fetch pid from current_inferior
	directly.  Pass &all_threads to find_inferior instead of &all_lwps.
	(aarch64_stopped_data_address): Fetch lwpid from current_inferior
	directly.
	(aarch64_linux_prepare_to_resume): Fetch ptid from thread.
	(aarch64_arch_setup): Fetch lwpid from current_inferior directly.
	* linux-arm-low.c (update_registers_callback): Update, "entry"
	parameter is a struct thread_info * now.
	Fetch lwpid from current_inferior directly.
	(arm_insert_point): Pass &all_threads to find_inferior instead of
	&all_lwps.
	(arm_remove_point): Ditto.
	(arm_stopped_by_watchpoint): Fetch lwp from current_inferior.
	(arm_prepare_to_resume): Fetch pid from thread.
	(arm_read_description): Fetch lwpid from current_inferior directly.
	* linux-low.c (all_lwps): Delete.
	(delete_lwp): Delete call to remove_inferior.
	(handle_extended_wait): Fetch lwpid from thread.
	(add_lwp): Don't set lwp->entry.id.  Remove call to
	add_inferior_to_list.
	(linux_attach_lwp_1): Fetch pid from current_inferior directly.
	(linux_kill_one_lwp): Fetch ptid,lwpid from thread.
	(kill_one_lwp_callback): Ditto.
	(linux_kill): Don't dereference NULL pointer.
	Fetch ptid,lwpid from thread.
	(get_detach_signal): Fetch ptid from thread.
	(linux_detach_one_lwp): Fetch ptid,lwpid from thread.
	Simplify call to regcache_invalidate_thread.
	(delete_lwp_callback): Update, "entry" parameter is a
	struct thread_info * now.  Fetch pid from thread.
	(linux_mourn): Pass &all_threads to find_inferior instead of &all_lwps.
	(status_pending_p_callback): Update, "entry" parameter is a
	struct thread_info * now.  Fetch ptid from thread.
	(find_lwp_pid): Update, "entry" parameter is a
	struct thread_info * now.
	(linux_wait_for_lwp): Fetch pid from thread.
	(linux_fast_tracepoint_collecting): Fetch lwpid from thread.
	(maybe_move_out_of_jump_pad): Fetch lwpid from current_inferior.
	(enqueue_one_deferred_signal): Fetch lwpid from thread.
	(dequeue_one_deferred_signal): Ditto.
	(cancel_breakpoint): Fetch ptid from current_inferior.
	(linux_wait_for_event): Pass &all_threads to find_inferior,
	not &all_lwps.  Fetch ptid, lwpid from thread.
	(count_events_callback): Update, "entry" parameter is a
	struct thread_info * now.
	(select_singlestep_lwp_callback): Ditto.
	(select_event_lwp_callback): Ditto.
	(cancel_breakpoints_callback): Ditto.
	(linux_cancel_breakpoints): Pass &all_threads to find_inferior,
	not &all_lwps.
	(select_event_lwp): Ditto.  Fetch ptid from event_thread.
	(unsuspend_one_lwp): Update, "entry" parameter is a
	struct thread_info * now.
	(unsuspend_all_lwps): Pass &all_threads to find_inferior,
	not &all_lwps.
	(linux_stabilize_threads): Ditto.  And for for_each_inferior.
	Fetch lwpid from thread, not lwp.
	(linux_wait_1): Fetch ptid, lwpid from current_inferior.
	Pass &all_threads to find_inferior, not &all_lwps.
	(send_sigstop): Fetch lwpid from thread, not lwp.
	(send_sigstop_callback): Update, "entry" parameter is a
	struct thread_info * now.
	(suspend_and_send_sigstop_callback): Ditto.
	(wait_for_sigstop): Ditto.  Fetch ptid, lwpid from thread, lwp.
	(stuck_in_jump_pad_callback): Update, "entry" parameter is a
	struct thread_info * now.
	(move_out_of_jump_pad_callback): Ditto.  Fetch ptid, lwpid
	from thread, lwp.
	(lwp_running): Update, "entry" parameter is a
	struct thread_info * now.
	(stop_all_lwps): Fetch ptid from thread.
	Pass &all_threads to find_inferior, for_each_inferior, not &all_lwps.
	(linux_resume_one_lwp): Fetch lwpid from thread.
	(linux_set_resume_request): Update, "entry" parameter is a
	struct thread_info * now.  Fetch pid, lwpid from thread.
	(resume_status_pending_p): Update, "entry" parameter is a
	struct thread_info * now.
	(need_step_over_p): Ditto.  Fetch lwpid from thread.
	(start_step_over): Fetch lwpid from thread.
	(linux_resume_one_thread): Update, "entry" parameter is a
	struct thread_info * now.  Fetch lwpid from thread.
	(linux_resume): Pass &all_threads to find_inferior, not &all_lwps.
	(proceed_one_lwp): Update, "entry" parameter is a
	struct thread_info * now.  Fetch lwpid from thread.
	(unsuspend_and_proceed_one_lwp): Update, "entry" parameter is a
	struct thread_info * now.
	(proceed_all_lwps): Pass &all_threads to find_inferior, not &all_lwps.
	(unstop_all_lwps): Ditto.  Fetch lwpid from thread.
	(regsets_fetch_inferior_registers): Fetch lwpid from current_inferior
	directly.
	(regsets_store_inferior_registers): Ditto.
	(fetch_register, store_register): Ditto.
	(linux_read_memory, linux_write_memory): Ditto.
	(linux_request_interrupt): Ditto.
	(linux_read_auxv): Ditto.
	(linux_xfer_siginfo): Ditto.
	(linux_qxfer_spu): Ditto.
	(linux_qxfer_libraries_svr4): Ditto.
	* linux-low.h (ptid_of, pid_of, lwpid_of): Delete,
	moved to inferiors.h.
	(get_lwp): Delete.
	(get_thread_lwp): Update.
	(struct lwp_info): Delete member "entry".  Simplify comment for
	member "thread".
	(all_lwps): Delete.
	* linux-mips-low.c (mips_read_description): Fetch lwpid from
	current_inferior directly.
	(update_watch_registers_callback): Update, "entry" parameter is a
	struct thread_info * now.  Fetch pid from thread.
	(mips_linux_prepare_to_resume): Fetch ptid from thread.
	(mips_insert_point): Fetch lwpid from current_inferior.
	Pass &all_threads to find_inferior, not &all_lwps.
	(mips_remove_point): Pass &all_threads to find_inferior, not &all_lwps.
	(mips_stopped_by_watchpoint): Fetch lwpid from current_inferior
	directly.
	(mips_stopped_data_address): Ditto.
	* linux-s390-low.c (s390_arch_setup): Fetch pid from current_inferior
	directly.
	* linux-tile-low.c (tile_arch_setup): Ditto.
	* linux-x86-low.c (x86_get_thread_area): Fetch lwpid from thread.
	(update_debug_registers_callback): Update, "entry" parameter is a
	struct thread_info * now.  Fetch pid from thread.
	(i386_dr_low_set_addr): Fetch pid from current_inferior directly.
	Pass &all_threads to find_inferior, not &all_lwps.
	(i386_dr_low_get_addr): Fetch ptid from current_inferior directly.
	(i386_dr_low_set_control): Fetch pid from current_inferior directly.
	Pass &all_threads to find_inferior, not &all_lwps.
	(i386_dr_low_get_control): Fetch ptid from current_inferior directly.
	(i386_dr_low_get_status): Ditto.
	(x86_linux_prepare_to_resume): Fetch ptid from thread.
	(x86_siginfo_fixup): Fetch lwpid from current_inferior directly.
	(x86_linux_read_description): Ditto.
	* proc-service.c (ps_getpid): Fetch pid from current_inferior directly.
mark *_varobj_ops as "extern"

The AIX linker pointed out that gdb had multiple definitions of the
various *_varobj_ops objects.  This patch fixes the problem by marking
the declarations as "extern" in varobj.h.  Tested by rebuilding on
x86-64 Fedora 18 and on AIX.

2014-02-20  Tom Tromey  <tromey@redhat.com>

	* varobj.h (c_varobj_ops, cplus_varobj_ops, java_varobj_ops)
	(ada_varobj_ops): Mark "extern".
Add single sentence description to top of entry of previous commit.
Fix for PR tdep/16397: SystemTap SDT probe support for x86 doesn't work with "triplet operands"

This is the continuation of what Joel proposed on:

<https://sourceware.org/ml/gdb-patches/2013-12/msg00977.html>

Now that I have already submitted and pushed the patch to split
i386_stap_parse_special_token into two smaller functions, it is indeed
simpler to understand this patch.

It occurs because, on x86, triplet displacement operands are allowed
(like "-4+8-20(%rbp)"), and the current parser for this expression is
buggy.  It does not correctly extract the register name from the
expression, which leads to incorrect evaluation.  The parser was also
being very "generous" with the expression, so I included a few more
checks to ensure that we're indeed dealing with a triplet displacement
operand.

This patch also includes testcases for the two different kind of
expressions that can be encountered on x86: the triplet displacement
(explained above) and the three-argument displacement (as in
"(%rbx,%ebx,-8)").  The tests are obviously arch-dependent and are
placed under gdb.arch/.

Message-ID: <m3mwj1j12v.fsf@redhat.com>
URL: <https://sourceware.org/ml/gdb-patches/2014-01/msg00310.html>

gdb/
2014-02-20  Sergio Durigan Junior  <sergiodj@redhat.com>

	PR tdep/16397
	* i386-tdep.c (i386_stap_parse_special_token_triplet): Check if a
	number comes after the + or - signs.  Adjust length of register
	name to be extracted.

gdb/testsuite/
2014-02-20  Sergio Durigan Junior  <sergiodj@redhat.com>

	PR tdep/16397
	* gdb.arch/amd64-stap-special-operands.exp: New file.
	* gdb.arch/amd64-stap-three-arg-disp.S: Likewise.
	* gdb.arch/amd64-stap-three-arg-disp.c: Likewise.
	* gdb.arch/amd64-stap-triplet.S: Likewise.
	* gdb.arch/amd64-stap-triplet.c: Likewise.
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