Commit Graph

88538 Commits

Author SHA1 Message Date
Antoine Tremblay 9c36d9544f Add test for user context selection sync
This patch adds a test to verify that events are sent properly to all
UIs when the user selection context (inferior, thread, frame) changes.

The goal of the C test file is to provide two threads that are stopped with the
same predictable backtrace (so that we can test frame switching).  The barrier
helps us know when the child threads are started.  Then, scheduler-locking is
used to bring each thread one by one to the position we expect them to be
during the test.

gdb/testsuite/ChangeLog:

YYYY-MM-DD  Antoine Tremblay  <antoine.tremblay@ericsson.com>
YYYY-MM-DD  Simon Marchi  <simon.marchi@ericsson.com>

	PR gdb/20487
	* gdb.mi/user-selected-context-sync.exp: New file.
	* gdb.mi/user-selected-context-sync.c: New file.
2016-10-03 16:56:24 -04:00
Antoine Tremblay 4034d0ff52 Emit inferior, thread and frame selection events to all UIs
With this patch, when an inferior, thread or frame is explicitly
selected by the user, notifications will appear on all CLI and MI UIs.
When a GDB console is integrated in a front-end, this allows the
front-end to follow a selection made by the user ont he CLI, and it
informs the user about selection changes made behind the scenes by the
front-end.

This patch addresses PR gdb/20487.

In order to communicate frame changes to the front-end, this patch adds
a new field to the =thread-selected event for the selected frame.  The
idea is that since inferior/thread/frame can be seen as a composition,
it makes sense to send them together in the same event.  The vision
would be to eventually send the inferior information as well, if we find
that it's needed, although the "=thread-selected" event would be
ill-named for that job.

Front-ends need to handle this new field if they want to follow the
frame selection changes that originate from the console.  The format of
the frame attribute is the same as what is found in the *stopped events.

Here's a detailed example for each command and the events they generate:

thread
------

1. CLI command:

     thread 1.3

   MI event:

     =thread-selected,id="3",frame={...}

2. MI command:

     -thread-select 3

   CLI event:

     [Switching to thread 1.3 ...]

3. MI command (CLI-in-MI):

     thread 1.3

   MI event/reply:

     &"thread 1.3\n"
     ~"#0  child_sub_function () ...
     =thread-selected,id="3",frame={level="0",...}
     ^done

frame
-----

1. CLI command:

     frame 1

   MI event:

     =thread-selected,id="3",frame={level="1",...}

2. MI command:

     -stack-select-frame 1

   CLI event:

     #1  0x00000000004007f0 in child_function...

3. MI command (CLI-in-MI):

     frame 1

   MI event/reply:

     &"frame 1\n"
     ~"#1  0x00000000004007f9 in ..."
     =thread-selected,id="3",frame={level="1"...}
     ^done

inferior
--------

Inferior selection events only go from the console to MI, since there's
no way to select the inferior in pure MI.

1. CLI command:

     inferior 2

   MI event:

     =thread-selected,id="3"

Note that if the user selects an inferior that is not started or exited,
the MI doesn't receive a notification.  Since there is no threads to
select, the =thread-selected event does not apply...

2. MI command (CLI-in-MI):

     inferior 2

   MI event/reply:

     &"inferior 2\n"
     ~"[Switching to inferior 2 ...]"
     =thread-selected,id="4",frame={level="0"...}
     ^done

Internal implementation detail: this patch makes it possible to suppress
notifications caused by a CLI command, like what is done in mi-interp.c.
This means that it's now possible to use the
add_com_suppress_notification function to register a command with some
event suppressed.  It is used to implement the select-frame command in
this patch.

The function command_notifies_uscc_observer was added to extract
the rather complicated logical expression from the if statement.  It is
also now clearer what that logic does: if the command used by the user
already notifies the user_selected_context_changed observer, there is
not need to notify it again.  It therefore protects again emitting the
event twice.

No regressions, tested on ubuntu 14.04 x86 with target boards unix and
native-extended-gdbserver.

gdb/ChangeLog:

YYYY-MM-DD  Antoine Tremblay  <antoine.tremblay@ericsson.com>
YYYY-MM-DD  Simon Marchi  <simon.marchi@ericsson.com>

	PR gdb/20487
	* NEWS: Mention new frame field of =thread-selected event.
	* cli/cli-decode.c (add_cmd): Initialize c->suppress_notification.
	(add_com_suppress_notification): New function definition.
	(cmd_func): Set and restore the suppress_notification flag.
	* cli/cli-deicode.h (struct cmd_list_element)
	<suppress_notification>: New field.
	* cli/cli-interp.c (cli_suppress_notification): New global variable.
	(cli_on_user_selected_context_changed): New function.
	(_initialize_cli_interp): Attach to user_selected_context_changed
	observer.
	* command.h (struct cli_suppress_notification): New structure.
	(cli_suppress_notification): New global variable declaration.
	(add_com_suppress_notification): New function declaration.
	* defs.h (enum user_selected_what_flag): New enum.
	(user_selected_what): New enum flag type.
	* frame.h (print_stack_frame_to_uiout): New function declaration.
	* gdbthread.h (print_selected_thread_frame): New function declaration.
	* inferior.c (print_selected_inferior): New function definition.
	(inferior_command): Remove printing of inferior/thread/frame switch
	notifications, notify user_selected_context_changed observer.
	* inferior.h (print_selected_inferior): New function declaration.
	* mi/mi-cmds.c (struct mi_cmd): Add user_selected_context
	suppression to stack-select-frame and thread-select commands.
	* mi/mi-interp.c (struct mi_suppress_notification)
	<user_selected_context>: Initialize.
	(mi_user_selected_context_changed): New function definition.
	(_initialize_mi_interp): Attach to user_selected_context_changed.
	* mi/mi-main.c (mi_cmd_thread_select): Print thread selection reply.
	(mi_execute_command): Handle notification suppression.  Notify
	user_selected_context_changed observer on thread change instead of printing
	event directly.  Don't send it if command already sends the notification.
	(command_notifies_uscc_observer): New function.
	(mi_cmd_execute): Don't handle notification suppression.
	* mi/mi-main.h (struct mi_suppress_notification)
	<user_selected_context>: New field.
	* stack.c (print_stack_frame_to_uiout): New function definition.
	(select_frame_command): Notify user_selected_context_changed
	observer.
	(frame_command): Call print_selected_thread_frame if there's no frame
	change or notify user_selected_context_changed observer if there is.
	(up_command): Notify user_selected_context_changed observer.
	(down_command): Likewise.
	(_initialize_stack): Suppress user_selected_context notification for
	command select-frame.
	* thread.c (thread_command): Notify
	user_selected_context_changed if the thread has changed, print
	thread info directly if it hasn't.
	(do_captured_thread_select): Do not print thread switch event.
	(print_selected_thread_frame): New function definition.
	* tui/tui-interp.c (tui_on_user_selected_context_changed):
	New function definition.
	(_initialize_tui_interp): Attach to user_selected_context_changed
	observer.

gdb/doc/ChangeLog:

	PR gdb/20487
	* gdb.texinfo (Context management): Update mention of frame
	change notifications.
	(gdb/mi Async Records): Document frame field in
	=thread-select event.
	* observer.texi (GDB Observers): New user_selected_context_changed
	observer.

gdb/testsuite/ChangeLog:

	PR gdb/20487
	* gdb.mi/mi-pthreads.exp (check_mi_thread_command_set): Adapt
	=thread-select-event check.
2016-10-03 16:54:58 -04:00
GDB Administrator 0ee0f92162 Automatic date update in version.in 2016-10-03 00:00:22 +00:00
GDB Administrator e7847a2b37 Automatic date update in version.in 2016-10-02 00:00:19 +00:00
GDB Administrator fe61e2596d Automatic date update in version.in 2016-10-01 00:00:27 +00:00
Yao Qi 17e1648598 PR 20627: Use resume_stop to stop lwp
Commit 049a8570 (Use target_continue{,_no_signal} instead of target_resume)
replaces the code stopping lwp with target_continue_no_signal in
target_stop_and_wait, like this,

-  resume_info.thread = ptid;
-  resume_info.kind = resume_stop;
-  resume_info.sig = GDB_SIGNAL_0;
-  (*the_target->resume) (&resume_info, 1);
+  target_continue_no_signal (ptid);

the replacement is not equivalent, and it causes PR 20627.  This patch
is just to revert that change.

Regression testing it on x86_64-linux.

gdb/gdbserver:

2016-09-30  Yao Qi  <yao.qi@linaro.org>

	PR gdbserver/20627
	* target.c (target_stop_and_wait): Don't call
	target_continue_no_signal, use resume_stop instead.
2016-09-30 18:39:12 +01:00
H.J. Lu 72da393d41 Don't assign alt twice
PR binutils/20657
	* i386-dis.c (putop): Don't assign alt twice.
2016-09-30 08:54:43 -07:00
Alan Modra 92c6e4fe5d Add missing dependencies to BFD_H_FILES
* Makefile.am (BFD_H_FILES): Add linker.c and simple.c.  Sort
	as per comment at head of bfd-in2.h.
	* Makefile.in: Regenerate.
2016-10-01 00:37:26 +09:30
Jiong Wang 744ce3025e [AArch64] PR target/20553, fix opcode mask for SIMD multiply by element
opcode/
	PR target/20553
        * aarch64-tbl.h (fmla, fmls, fmul, fmulx): Fix opcode mask field.

gas/
        * testsuite/gas/aarch64/advsimd-fp16.s (indexed_elem): New high index
        testcases for H and S variants.  New low index testcases for D variant.
        * testsuite/gas/aarch64/advsimd-fp16.d: Update expected results.
2016-09-30 14:16:54 +01:00
Alan Modra 76276ff673 v850 linker scripts
This should mean the 2010-10-28 change for ld -r --gc-sections can
be reverted.

	* scripttempl/v850.sc: Don't reference __ctbp, __ep, __gp when
	not relocating.
	* scripttempl/v850_rh850.sc: Likewise.
2016-09-30 17:53:27 +09:30
Alan Modra 80169c8a23 Fix pr20528 testsuite
PR ld/20528
	* testsuite/ld-elf/pr20528a.d: xfail generic elf targets.  Allow
	multiple .text sections for hppa-linux.
	* testsuite/ld-elf/pr20528b.d: Likewise.
2016-09-30 17:51:07 +09:30
Alan Modra 4eca02287c Remove syntactic sugar
Now that _bfd_error_handler is not a function pointer.

	* aout-adobe.c: Replace (*_bfd_error_handler) (...) with
	_bfd_error_handler (...) throughout.
	* aout-cris.c, * aoutx.h, * archive.c, * bfd.c, * binary.c,
	* cache.c, * coff-alpha.c, * coff-arm.c, * coff-h8300.c,
	* coff-i860.c, * coff-mcore.c, * coff-ppc.c, * coff-rs6000.c,
	* coff-sh.c, * coff-tic4x.c, * coff-tic54x.c, * coff-tic80.c,
	* coff64-rs6000.c, * coffcode.h, * coffgen.c, * cofflink.c,
	* coffswap.h, * cpu-arm.c, * cpu-m68k.c, * cpu-sh.c, * dwarf2.c,
	* ecoff.c, * elf-eh-frame.c, * elf-m10300.c, * elf.c, * elf32-arc.c,
	* elf32-arm.c, * elf32-avr.c, * elf32-bfin.c, * elf32-cr16.c,
	* elf32-cris.c, * elf32-crx.c, * elf32-dlx.c, * elf32-frv.c,
	* elf32-hppa.c, * elf32-i370.c, * elf32-i386.c, * elf32-lm32.c,
	* elf32-m32c.c, * elf32-m32r.c, * elf32-m68hc1x.c, * elf32-m68k.c,
	* elf32-mcore.c, * elf32-mep.c, * elf32-metag.c, * elf32-microblaze.c,
	* elf32-mips.c, * elf32-nds32.c, * elf32-nios2.c, * elf32-or1k.c,
	* elf32-pj.c, * elf32-ppc.c, * elf32-rl78.c, * elf32-s390.c,
	* elf32-score.c, * elf32-score7.c, * elf32-sh.c, * elf32-sh64.c,
	* elf32-sparc.c, * elf32-spu.c, * elf32-tic6x.c, * elf32-tilepro.c,
	* elf32-v850.c, * elf32-vax.c, * elf32-xtensa.c, * elf64-alpha.c,
	* elf64-hppa.c, * elf64-ia64-vms.c, * elf64-mips.c, * elf64-mmix.c,
	* elf64-ppc.c, * elf64-s390.c, * elf64-sh64.c, * elf64-sparc.c,
	* elf64-x86-64.c, * elfcode.h, * elfcore.h, * elflink.c,
	* elfn32-mips.c, * elfnn-aarch64.c, * elfnn-ia64.c, * elfxx-mips.c,
	* elfxx-sparc.c, * elfxx-tilegx.c, * hpux-core.c, * i386linux.c,
	* ieee.c, * ihex.c, * libbfd.c, * linker.c, * m68klinux.c,
	* mach-o.c, * merge.c, * mmo.c, * oasys.c, * osf-core.c, * pdp11.c,
	* pe-mips.c, * peXXigen.c, * pef.c, * plugin.c, * reloc.c,
	* rs6000-core.c, * sco5-core.c, * som.c, * sparclinux.c, * srec.c,
	* stabs.c, * syms.c, * vms-alpha.c, * vms-lib.c, * vms-misc.c,
	* xcofflink.c: Likewise.
2016-09-30 15:17:44 +09:30
Alan Modra 4519d07138 Better ld --fatal-warnings support
* ldmain.c (default_bfd_error_handler): New function pointer.
	(ld_bfd_error_handler): New function.
	(main): Arrange to call it on bfd errors/warnings.
	(ld_bfd_assert_handler): Enable tail call.
2016-09-30 11:38:45 +09:30
Alan Modra 52d45da3f2 Make bfd_error_handler_type like vprintf
It was like printf, which means you can't use bfd_set_error_handler to
hook in a function to do something and then call the original handler.

The patch also deletes some unused functions and makes pointers local.

bfd/
	* bfd-in.h: Include stdarg.h.
	* bfd.c (bfd_error_handler_type): Make like vprintf.
	(_bfd_error_internal): Rename from _bfd_error_handler.  Make static.
	(error_handler_internal): New function, split out from..
	(_bfd_default_error_handler): ..here.  Rename to _bfd_error_handler.
	(bfd_set_error_handler): Update.
	(bfd_get_error_handler, bfd_get_assert_handler): Delete.
	(_bfd_assert_handler): Make static.
	* coffgen.c (null_error_handler): Update params.
	* elf-bfd.h (struct elf_backend_data <link_order_error_handler>):
	Don't use bfd_error_handler_type.
	* elf64-mmix.c (mmix_dump_bpo_gregs): Likewise.
	* elfxx-target.h (elf_backend_link_order_error_handler): Default
	to _bfd_error_handler.
	* libbfd-in.h (_bfd_default_error_handler): Don't declare.
	(bfd_assert_handler_type): Likewise.
	(_bfd_error_handler): Update.
	* bfd-in2.h: Regenerate.
	* libbfd.h: Regenerate.
ld/
	* ldlang.c (ignore_bfd_errors): Update params.
2016-09-30 11:38:39 +09:30
GDB Administrator 1fcf3da985 Automatic date update in version.in 2016-09-30 00:00:09 +00:00
Peter Bergner a4297203ea Update tests to account for the L operand being compulsory.
* gdb.arch/powerpc-power.exp <cmprb>: Update tests to account for
	the compulsory L operand changes.
	* gdb.arch/powerpc-power.s: Likewise.
2016-09-29 15:21:55 -05:00
H.J. Lu 93dc595d76 Don't merge 2 sections with different SHF_EXCLUDE
SEC_EXCLUDE is ignored when doing a relocatable link.  But we can't
merge 2 input sections with the same name when only one of them has
SHF_EXCLUDE.

	PR ld/20528
	* emultempl/elf32.em (gld${EMULATION_NAME}_place_orphan): Don't
	merge 2 sections with different SHF_EXCLUDE.
	* testsuite/ld-elf/pr20528a.d: New file.
	* testsuite/ld-elf/pr20528a.s: Likewise.
	* testsuite/ld-elf/pr20528b.d: Likewise.
	* testsuite/ld-elf/pr20528b.s: Likewise.
2016-09-29 12:58:40 -07:00
Jan Kratochvil bb805577d2 PR gdb/20609 - attach of JIT-debug-enabled inf 7.11.1 regression
Regression: gdb --pid $(pidof qemu-system-x86_64) stopped working with gdb 7.11.1
https://sourceware.org/bugzilla/show_bug.cgi?id=20609

It was reported for qemu-system-x86_64 but it happens for any multithreaded
inferior with a JIT debugging hook.

136613ef0c6850427317e57be1b644080ff6decb is the first bad commit
Author: Pedro Alves <palves@redhat.com>
    Fix PR gdb/19828: gdb -p <process from a container>: internal error
Message-ID: <cbdf2e04-4fa8-872a-2a23-08c9c1b26e00@redhat.com>
https://sourceware.org/ml/gdb-patches/2016-05/msg00450.html

jit_breakpoint_re_set() is specific by trying to insert a breakpoint into the
main executable, not into a shared library.  During attachment GDB thinks it
needs to use 'breakpoint always-inserted' from
breakpoints_should_be_inserted_now() as a newly attached thread is
'thread_info->executing' due to 'lwp_info->must_set_ptrace_flags' enabled and
the task not yet stopped.  This did not happen before the 'bad commit' above
which adds tracking of such thread.

GDB then fails to insert the breakpoints to invalid address as PIE executable
gets properly relocated during later phase of attachment.  One can see in the
backtraces below:
 -> jit_breakpoint_re_set_internal()
later:
 -> svr4_exec_displacement()

One can suppress the initial breakpoint_re_set() call as there will be another
breakpoint_re_set() done from the final post_create_inferior() call in
setup_inferior().

BTW additionally 'threads_executing' cache bool is somehow stale (somewhere is
missing update_threads_executing()).  I was trying to deal with that in my
first/second attempt below but in my final third attempt (attached) I have
left it as it is.

First attempt trying not to falsely require 'breakpoint always-inserted':
  https://people.redhat.com/jkratoch/rhbz1375553-fix1.patch
Reduced first attempt:
  https://people.redhat.com/jkratoch/rhbz1375553-fix2.patch

The third attempt suppresses breakpoint insertion until PIE executable gets
relocated by svr4_exec_displacement().  Applied.

gdb/ChangeLog
2016-09-29  Jan Kratochvil  <jan.kratochvil@redhat.com>

	PR gdb/20609 - attach of JIT-debug-enabled inf 7.11.1 regression
	* exec.c (exec_file_locate_attach): Add parameter defer_bp_reset.
	Use it.
	* gdbcore.h (exec_file_locate_attach): Add parameter defer_bp_reset.
	* infcmd.c (setup_inferior): Update caller.
	* remote.c (remote_add_inferior): Likewise.

gdb/testsuite/ChangeLog
2016-09-29  Jan Kratochvil  <jan.kratochvil@redhat.com>

	PR gdb/20609 - attach of JIT-debug-enabled inf 7.11.1 regression
	* gdb.base/jit-attach-pie.c: New file.
	* gdb.base/jit-attach-pie.exp: New file.
2016-09-29 17:39:39 +02:00
Andreas Krebbel 50751e18f3 Frame info dump: Fix bad register marks.
On S/390 we see quite often registers marked as "bad register" in the
readelf --debug-dump=frames or objdump -Wf output.

00000000 0000000000000014 00000000 CIE
      Version:               1
      Augmentation:          "zR"
      Code alignment factor: 1
      Data alignment factor: -8
      Return address column: 14
      Augmentation data:     1b

      DW_CFA_def_cfa: r15 ofs 160
      DW_CFA_nop
      DW_CFA_nop
      DW_CFA_nop

    ...

    00000050 000000000000001c 00000054 FDE cie=00000000 pc=0000000080000e58..0000000080000e84
      DW_CFA_advance_loc: 6 to 0000000080000e5e
      DW_CFA_offset: r14 at cfa-48
      DW_CFA_offset: r15 at cfa-40
      DW_CFA_advance_loc: 6 to 0000000080000e64
      DW_CFA_def_cfa_offset: 320
      DW_CFA_advance_loc: 18 to 0000000080000e76
      DW_CFA_restore: bad register: r15              <------
      DW_CFA_restore: r14
      DW_CFA_def_cfa_offset: 160

    This is triggered by this check in display_debug_frames (dwarf.c):

		case DW_CFA_restore:
		  if (opa >= (unsigned int) cie->ncols
		      || opa >= (unsigned int) fc->ncols)
		    reg_prefix = bad_reg;

cie->ncols is number of registers referenced in the CIE which is 15 due
to r14 being given as return address column.  So for the CFA_restore of
r15 a "bad register" is being printed while the same rule on r14 is ok.

The reason for this check is to prevent wild memory accesses when
reading input with corrupted register values while accessing the
col_type/col_offset arrays. However in that case r15 is a perfectly
valid register. It just happens not to be mentioned in the CIE.  Hence
restoring the CIE rule for r15 should end up with the default rule which
is DW_CFA_undefined.

This probably wasn't observed on other platforms because they either do
not use CFA_restore (x86-64) or do not issue CFA_restore on registers
with a higher number than the return address column.

binutils/ChangeLog:

2016-09-29  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>

	* dwarf.c (frame_display_row): Fix formatting of return address
	register column.
	(display_debug_frames): Ignore invalid indices into
	cie->col_type/cie->col_offset arrays and default to
	DW_CF_undefined instead.
2016-09-29 16:34:57 +02:00
Andreas Krebbel 084303b8c6 Add .cfi_val_offset GAS command.
This patch adds support for .cfi_val_offset GAS pseudo command which
maps to DW_CFA_val_offset and DW_CFA_val_offset_sf.

gas/ChangeLog:

2016-09-29  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>

	* doc/as.texinfo: Add docu for .cfi_val_offset.
	* dw2gencfi.c (cfi_add_CFA_val_offset): New function.
	(dot_cfi): Add case for DW_CFA_val_offset.
	(output_cfi_insn): Likewise.
	(cfi_pseudo_table): Add entry for cfi_val_offset.
	* dw2gencfi.h: Add prototype for cfi_add_CFA_val_offset.
	* testsuite/gas/cfi/cfi-common-8.d: New test.
	* testsuite/gas/cfi/cfi-common-8.s: New test.
	* testsuite/gas/cfi/cfi.exp: Run cfi-common-8 testcase.

binutils/ChangeLog:

2016-09-29  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>

	* dwarf.c (display_debug_frames): Adjust output line.
2016-09-29 16:33:25 +02:00
Alan Modra a5721ba270 Disallow 3-operand cmp[l][i] for ppc64
cmp[l][o] get an optional L field only when generating 32-bit code.
dcbf, tlbie and tlbiel keep their optional L field, ditto for R field
of tbegin.  cmprb, tsr., wlcr[all] and mtsle all change to a
compulsory L field.

L field of dcbf and wclr is 2 bits.

	PR 20641
include/
	* opcode/ppc.h (PPC_OPERAND_OPTIONAL32): Define.
opcodes/
	* ppc-opc.c (L): Make compulsory.
	(LOPT): New, optional form of L.
	(HTM_R): Define as LOPT.
	(L0, L1): Delete.
	(L32OPT): New, optional for 32-bit L.
	(L2OPT): New, 2-bit L for dcbf.
	(SVC_LEC): Update.
	(L2): Define.
	(insert_l0, extract_l0, insert_l1, extract_l2): Delete.
	(powerpc_opcodes <cmpli, cmpi, cmpl, cmp>): Use L32OPT.
	<dcbf>: Use L2OPT.
	<tlbiel, tlbie>: Use LOPT.
	<wclr, wclrall>: Use L2.
gas/
	* config/tc-ppc.c (md_assemble): Handle PPC_OPERAND_OPTIONAL32.
	* testsuite/gas/ppc/power8.s: Provide tbegin. operand.
	* testsuite/gas/ppc/power9.d: Update cmprb disassembly.
2016-09-29 15:12:47 +09:30
Alan Modra b82317dd34 Display .gnu.attributes tags for powerpc64
* readelf.c (process_arch_specific): Call process_power_specific
	for EM_PPC64.
2016-09-29 15:10:39 +09:30
GDB Administrator b1f5b0a435 Automatic date update in version.in 2016-09-29 00:00:22 +00:00
Pedro Alves 6d61dee599 Fix PR 20345 - call_function_by_hand_dummy: Assertion `tp->thread_fsm == &sm->thread_fsm' failed
If you run an infcall from the command line, and immediately after run
some other command, GDB incorrectly processes the other command before
the infcall finishes.

The problem is that the fix for PR gdb/20418 (Problems with
synchronous commands and new-ui, git 3eb7562a98) moved the
add_file_handler/delete_file_handler calls out of
target_terminal_$foo, and missed adjusting the infcall code.

gdb/ChangeLog:
2016-09-28  Pedro Alves  <palves@redhat.com>

	* infcall.c (run_inferior_call): Remove input from the event
	loop while running the infcall.

gdb/testsuite/ChangeLog:
2016-09-28  Pedro Alves  <palves@redhat.com>

	* gdb.base/infcall-input.c: New file.
	* gdb.base/infcall-input.exp: New file.
2016-09-28 17:44:57 -04:00
Tom Tromey 4435e1cc62 Small improvements to the remote protocol manual
I was reading the gdb RSP manual recently and I found a number of
small problems in the documentation.  This patch attempts to improve
these areas.  Specfically:

* The term "memory breakpoint" is used only in this section of the
  manual, and there inconsistently.  I found this term confusing --
  initially I thought it might be a watchpoint.  This patch changes it
  to use the term "software breakpoint", which is used in the rest of
  the manual.

* The z0 packet didn't document how "kind" was written.  And, it had a
  stray link to the architecture-specific protocol details node.  This
  patch moves this link to a better spot.

* The z1 patch didn't document that it accepts cmd_list.

* I couldn't find any text saying what response is given to a command
  like vCont in non-stop mode.  The answer is that OK is sent, and
  then a stop reply is sent as a notification.  This patch adds a note
  about this.

* The "create" stop reply did not document that the "R" argument is
  ignored.

* The "W", "X", and "w" packets did not document how the "AA" part is
  formatted.

* The %Stop notification example said "%%Stop", but I think this is
  incorrect.

2016-09-28  Tom Tromey  <tom@tromey.com>

	* gdb.texinfo (Packets) <z0>: Use "software breakpoint" rather
	than "memory breakpoint".  Further document "kind".  Move
	protocol-details link earlier.
	<z1>: Document the cmd_list argument.  Fix typo.
	<g>: Remove incorrect sentence.
	(Stop Reply Packets): Document "OK" response to requests when in
	non-stop mode.
	<swbreak>: Use "software breakpoint" rather than "memory
	breakpoint".
	<create>: Document that "R" is ignored.
	<W, X, w>: Document formatting of "AA".
	(Notification Packets): Use "%Stop", not "%%Stop".
2016-09-28 11:06:32 -06:00
Akihiko Odaki 9eaff86138 Fix seg-fault in the linker introduced by the previous delta.
PR ld/20636
	* elf-bfd.h (struct elf_backend_data): Delete
	elf_backend_count_output_relocs callback and add
	elf_backend_update_relocs.
	* elf32-arm.c (elf32_arm_count_output_relocs): Deleted.
	(emit_relocs): Deleted.
	(elf32_arm_emit_relocs): Deleted.
	(elf_backend_emit_relocs): Updated not to use the old functions.
	(elf32_arm_update_relocs): New function.
	(elf_backend_update_relocs): New define.
	* elflink.c (bfd_elf_final_link): Add additional_reloc_count to the
	relocation count. Call elf_backend_emit_relocs.
	(_bfd_elf_size_reloc_section): Do not call
	elf_backend_count_output_relocs.
	* elfxx-target.h (elf_backend_count_output_relocs): Deleted.
	(elf_backend_update_relocs): New define.
2016-09-28 11:50:41 +01:00
GDB Administrator de7fb42b57 Automatic date update in version.in 2016-09-28 00:00:23 +00:00
Christophe Lyon 2df2751d19 [ARM] PR ld/20608 Relocation truncated to fit: R_ARM_THM_JUMP24 for relocation to PLT entry
2016-09-28  Christophe Lyon  <christophe.lyon@linaro.org>

	PR ld/20608
	bfd/
	* elf32-arm.c (arm_type_of_stub): Handle the case when the pre-PLT
	Thumb-ARM stub is too far.

	ld
	* testsuite/ld-arm/arm-elf.exp: Handle new testcase.
	* testsuite/ld-arm/farcall-mixed-app2.d: New file.
	* testsuite/ld-arm/farcall-mixed-app2.r: Likewise.
	* testsuite/ld-arm/farcall-mixed-app2.s: Likewise.
	* testsuite/ld-arm/farcall-mixed-app2.sym: Likewise.
2016-09-28 01:41:00 +02:00
Cary Coutant e3f07b5b75 Don't treat as separate symbols if unversioned symbol is undefined.
When we see an unversioned symbol reference in a shared library, followed
by a default definition of the symbol in another shared library, we were
treating them as separate symbols. That should only happen when both are
definitions.

gold/
	PR gold/20238
	* symtab.cc (Symbol_table::define_default_version): Check that
	unversioned symbol is defined.
2016-09-27 12:08:28 -07:00
Simon Marchi 07619d52fe Add archives and make stamps to the .gitignore file. 2016-09-27 15:10:42 +01:00
Nick Clifton 1c5f704fc0 Ensure that the timestamp in PE/COFF headers is always initialised.
PR ld/20634
	* peXXigen.c (_bfd_XXi_only_swap_filehdr_out): Put 0 in the
	timestamp field if real time values are not being stored.
2016-09-27 12:08:19 +01:00
Fredrik Hederstierna ca90e76046 Detect the magic address of EXC_RETURN in ARM coretx-m profile
On ARMv6-M and ARMv7-M, the exception return address is sort of magic
address defined by the manual.  This patch is to let GDB well handle
these magic addresses.

2016-09-27  Fredrik Hederstierna  <fredrik.hederstierna@verisure.com>

	* arm-tdep.c (arm_m_addr_is_magic): New function.
	(arm_addr_bits_remove): Call arm_m_addr_is_magic.
	(arm_m_exception_unwind_sniffer): Likewise.
2016-09-27 02:02:47 +01:00
GDB Administrator 83ae81cd0b Automatic date update in version.in 2016-09-27 00:00:20 +00:00
Trevor Saunders 78fb7e37eb tc-xtensa.c: fixup xg_reverse_shift_count typo
gas/ChangeLog:

2016-09-26  Trevor Saunders  <tbsaunde+binutils@tbsaunde.org>

	* config/tc-xtensa.c (xg_reverse_shift_count): Pass cnt_arg instead of
	cnt_argp to concat.
2016-09-26 12:55:56 -04:00
Vlad Zakharov c5da193232 When building target binaries, ensure that the warning flags selected for the command line match the target compiler.
bfd	* warning.m4 (AC_EGREP_CPP_FOR_BUILD): Introduce macro
	to verify CC_FOR_BUILD compiler.
	(AM_BINUTILS_WARNINGS): Introduce ac_cpp_for_build variable
	and add CC_FOR_BUILD compiler checks.
	* Makefile.in: Regenerate.
	* configure: Likewise.
	* doc/Makefile.in: Likewise.

binutils	* Makefile.am: Replace AM_CLFAGS with AM_CFLAGS_FOR_BUILD
	when building with CC_FOR_BUILD compiler.
	* Makefile.in: Regenerate.
	* configure: Likewise.
	* doc/Makefile.in: Likewise.

gas	* Makefile.in: Regenerate.
	* configure: Likewise.
	* doc/Makefile.in: Likewise.

gold	* Makefile.in: Regenerate.
	* configure: Likewise.
	* testsuite/Makefile.in: Likewise.

gprof	* Makefile.in: Regenerate.
	* configure: Likewise.

ld	* Makefile.in: Regenerate.
	* configure: Likewise.

opcodes	* Makefile.in: Regenerate.
	* configure: Likewise.
2016-09-26 16:36:08 +01:00
Awson 384f750334 Fix the calculation of AMD64_PCRQUAD relocations.
PR ld/17955
	* coff-x86_64.c (coff_amd64_rtype_to_howto): Use an 8 byte offset
	for R_AMD64_PCRQUAD relocations.
2016-09-26 16:16:25 +01:00
Claudiu Zissulescu 2b848ebdbb [ARC] ISA alignment.
include/
2016-09-26  Claudiu Zissulescu  <claziss@synopsys.com>

	* opcode/arc.h (insn_class_t): Add two new classes.

opcodes/
2016-09-26  Claudiu Zissulescu  <claziss@synopsys.com>

	* arc-ext-tbl.h (EXTINSN2OPF): Define.
	(EXTINSN2OP): Use EXTINSN2OPF.
	(bspeekm, bspop, modapp): New extension instructions.
	* arc-opc.c (F_DNZ_ND): Define.
	(F_DNZ_D): Likewise.
	(F_SIZEB1): Changed.
	(C_DNZ_D): Define.
	(C_HARD): Changed.
	* arc-tbl.h (dbnz): New instruction.
	(prealloc): Allow it for ARC EM.
	(xbfu): Likewise.
2016-09-26 16:47:17 +02:00
Alan Modra 005d79fd61 PowerPC .gnu.attributes
This patch extends Tag_GNU_Power_ABI_FP to cover long double ABIs,
makes the assembler warn about undefined tag values, and removes
similar warnings from the linker.  I think it is better to not
warn in the linker about undefined tag values as future extensions to
the tags then won't result in likely bogus warnings.  This is
consistent with the fact that an older linker won't warn on an
entirely new tag.

include/
	* elf/ppc.h (Tag_GNU_Power_ABI_FP): Comment.
bfd/
	* elf-bfd.h (_bfd_elf_ppc_merge_fp_attributes): Declare.
	* elf32-ppc.c (_bfd_elf_ppc_merge_fp_attributes): New function.
	(ppc_elf_merge_obj_attributes): Use it.  Don't copy first file
	attributes, merge them.  Don't warn about undefined tag bits,
	or copy unknown values to output.
	* elf64-ppc.c (ppc64_elf_merge_private_bfd_data): Call
	_bfd_elf_ppc_merge_fp_attributes.
binutils/
	* readelf.c (display_power_gnu_attribute): Catch truncated section
	for all powerpc attributes.  Display long double ABI.  Don't
	capitalize words, except for names.  Show known bits of tag values
	when some unknown bits are present.  Whitespace fixes.
gas/
	* config/tc-ppc.c (ppc_elf_gnu_attribute): New function.
	(md_pseudo_table <ELF>): Handle "gnu_attribute".
ld/
	* testsuite/ld-powerpc/attr-gnu-4-4.s: Delete.
	* testsuite/ld-powerpc/attr-gnu-4-14.d: Delete.
	* testsuite/ld-powerpc/attr-gnu-4-24.d: Delete.
	* testsuite/ld-powerpc/attr-gnu-4-34.d: Delete.
	* testsuite/ld-powerpc/attr-gnu-4-41.d: Delete.
	* testsuite/ld-powerpc/attr-gnu-4-32.d: Adjust expected warning.
	* testsuite/ld-powerpc/attr-gnu-8-23.d: Likewise.
	* testsuite/ld-powerpc/attr-gnu-4-01.d: Adjust expected output.
	* testsuite/ld-powerpc/attr-gnu-4-02.d: Likewise.
	* testsuite/ld-powerpc/attr-gnu-4-03.d: Likewise.
	* testsuite/ld-powerpc/attr-gnu-4-10.d: Likewise.
	* testsuite/ld-powerpc/attr-gnu-4-11.d: Likewise.
	* testsuite/ld-powerpc/attr-gnu-4-20.d: Likewise.
	* testsuite/ld-powerpc/attr-gnu-4-22.d: Likewise.
	* testsuite/ld-powerpc/attr-gnu-4-33.d: Likewise.
	* testsuite/ld-powerpc/attr-gnu-8-11.d: Likewise.
	* testsuite/ld-powerpc/powerpc.exp: Don't run deleted tests.
2016-09-26 18:04:57 +09:30
Alan Modra 153679d55f [GOLD] regen testsuite/Makefile.in 2016-09-26 18:04:35 +09:30
Alan Modra 2422813015 [GOLD] warning fixes
* aarch64.cc (Target_aarch64::is_erratum_835769_sequence): Avoid
	compiler warning.
	* output.cc (Output_segment::set_section_addresses): Likewise.
2016-09-26 18:04:18 +09:30
Alan Modra 7358f4cbaf Fix nm potential buffer overflow
get_coff_symbol_type had a potenial buffer overflow even with
untranslated messages.

	* nm.c (get_elf_symbol_type): Don't use sprintf with translated
	strings, use asprintf instead.
	(get_coff_symbol_type): Likewise.
2016-09-26 18:02:44 +09:30
Yao Qi edeeb60243 Call debug_exit in linux_wait_1
When I read the GDBserver debug message, I find the "entering" of
linux_wait_1 doesn't match the "existing" of linux_wait_1.  Looks
we don't call debug_exit somewhere in linux_wait_1 on return.

gdb/gdbserver:

2016-09-26  Yao Qi  <yao.qi@linaro.org>

	* linux-low.c (linux_wait_1): Call debug_exit.
2016-09-26 04:01:19 +01:00
GDB Administrator b9897522a5 Automatic date update in version.in 2016-09-26 00:00:20 +00:00
GDB Administrator ec93bc323d Automatic date update in version.in 2016-09-25 00:00:21 +00:00
Jon Turney 9eee20eb54 Fix a use of target_mourn_inferior in windows-nat.c
One use of target_mourn_interior seems to have been missed in bc1e6c81

gdb/ChangeLog:

2016-09-23  Jon Turney  <jon.turney@dronecode.org.uk>

	* windows-nat.c (windows_delete_thread): Adjusting call to
	target_mourn_inferior to include ptid_t argument.
2016-09-24 14:49:38 +01:00
GDB Administrator f4e0d9f40b Automatic date update in version.in 2016-09-24 00:00:16 +00:00
Tom Tromey a97e29d248 Use std::string rather than dyn-string
This patch changes some code in cli-cmds.c to use std::string rather
than dyn-string, removing some cleanups.  Since this was the last use
of dyn-string in gdb, this patch also removes
make_cleanup_dyn_string_delete.

2016-09-23  Tom Tromey  <tom@tromey.com>

	* utils.h (make_cleanup_dyn_string_delete): Remove declaration.
	* utils.c: Don't include dyn-string.h.
	(do_dyn_string_delete, make_cleanup_dyn_string_delete): Remove.
	* cli/cli-cmds.c: Include <string>.  Don't include dyn-string.h.
	(argv_to_string): Rename.  Change return type to std::string.
	(alias_command): Use std::string.
2016-09-23 11:37:09 -06:00
Tom Tromey cfe826d45e Use std::vector in objfiles.c
This patch changes a spot in objfiles.c to use a std::vector, removing
a cleanup.

2016-09-23  Tom Tromey  <tom@tromey.com>

	* objfiles.c: Include <vector>.
	(objfile_relocate): Use std::vector.
2016-09-23 11:37:08 -06:00
Tom Tromey ab8b80a885 Use std::string, std::vector in rust-lang.c
This patch changes some spots in rust-lang.c to use std::string or
std::vector, removing some cleanups.

2016-09-23  Tom Tromey  <tom@tromey.com>

	* rust-lang.c: Include <string> and <vector>.
	(rust_evaluate_funcall): Use std::vector, std::string.
	(rust_evaluate_subexp): Use std::string.
	(rust_lookup_symbol_nonlocal): Use std::string.
2016-09-23 11:37:08 -06:00
Tom Tromey 05d49c372d Use std::string in cp-namespace.c
This changes a few spots in cp-namespace.c to use std::string,
removing some cleanups.

2016-09-23  Tom Tromey  <tom@tromey.com>

	* cp-namespace.c: Include <string>.
	(cp_search_static_and_baseclasses)
	(cp_lookup_symbol_imports_or_template, find_symbol_in_baseclass):
	Use std::string.
2016-09-23 11:37:07 -06:00