Commit Graph

84589 Commits

Author SHA1 Message Date
Alan Modra bb854a36d1 Fix ppc64 ELFv1 assertion failure
Bogus assembly can hit an assertion in opd_entry_value when the symbol
referenced by a function descriptor is undefined.  Worse, the code
after the assert copies unitialised memory to return the code section.
This uninitialised pointer can later be dereferencd, possibly causing
a linker segmentation fault.

	* elf64-ppc.c (opd_entry_value): Remove assertion.  Instead,
	return -1 if symbol referenced is not defined.  Tidy.
2015-07-22 19:20:38 +09:30
Alan Modra f945ba50bb GOLD aarch64 warning fix
aarch64.cc:2026:50: error: integer overflow in expression [-Werror=overflow]
       Insntype adr_insn = adrp_insn & ((1 << 31) - 1);

	* aarch64.cc (try_fix_erratum_843419_optimized): Warning fix.
2015-07-22 10:29:12 +09:30
GDB Administrator 6dca8d51d5 Automatic date update in version.in 2015-07-22 00:00:08 +00:00
Cary Coutant 5417c94d1a Fix problem where __start_ and __stop_ section symbols do not honor version script.
When creating the special __start_ and __stop_ section symbols, gold
does not check the version script to see if they should be local
instead of global.

2015-07-21  Cary Coutant  <ccoutant@gmail.com>

gold/
	PR gold/18548
	* symtab.cc (Symbol_table::do_define_in_output_data): Check for
	forced local symbol even when oldsym != NULL.
	(Symbol_table::do_define_in_output_segment): Likewise.
	(Symbol_table::do_define_as_constant): Likewise.
2015-07-21 16:10:05 -07:00
Cary Coutant b8c6c5ef99 Fix typo in PR number.
Fix internal error when linking an archive library with no preceding objects.

    gold/
	PR gold/18698
	* archive.cc (Library_base::should_include_member): Don't use entry
	point for relocatable links, or if target is not yet valid.
	* parameters.cc (Parameters::entry): Check target_valid().
2015-07-21 12:50:45 -07:00
Cary Coutant cb5cf5e26e Fix internal error when linking an archive library with no preceding objects.
gold/
	PR gold/18696
	* archive.cc (Library_base::should_include_member): Don't use entry
	point for relocatable links, or if target is not yet valid.
	* parameters.cc (Parameters::entry): Check target_valid().
2015-07-21 12:42:07 -07:00
Yao Qi af1b22f300 Move aarch64_linux_get_debug_reg_capacity to nat/aarch64-linux-hw-point.c
There are also some duplication on getting HW watchpoint/breakpoint
registers info between GDB and GDBserver.  This patch moves them
to nat/aarch64-linux-hw-point.c.

Note that ENABLE_NLS is not defined in GDBserver, so it should be OK
to use _( markup.

gdb:

2015-07-21  Yao Qi  <yao.qi@linaro.org>

	* aarch64-linux-nat.c (aarch64_linux_get_debug_reg_capacity):
	Move it to nat/aarch64-linux-hw-point.c.
	(aarch64_linux_child_post_startup_inferior): Update.
	* nat/aarch64-linux-hw-point.c (aarch64_linux_get_debug_reg_capacity):
	New function.
	* nat/aarch64-linux-hw-point.h (aarch64_linux_get_debug_reg_capacity):
	Declare it.

gdb/gdbserver:

2015-07-21  Yao Qi  <yao.qi@linaro.org>

	* linux-aarch64-low.c (aarch64_arch_setup): Remove code and call
	aarch64_linux_get_debug_reg_capacity.
2015-07-21 16:33:41 +01:00
Markus Metzger 40e050d242 btrace: fix case label in btrace_data_append
gdb/
	* common/btrace-common.c (btrace_data_append): Change case label.
2015-07-21 13:50:44 +02:00
Matthew Wahab f33026a965 [ARM] Support correctly spelled ARMv6KZ architecture names
2015-07-20  Matthew Wahab  <matthew.wahab@arm.com>

gas/
    * NEWS: Mention corrected spelling of armv6kz.
    * config/tc-arm.c (arm_cpus): Replace ARM_ARCH_V6ZK with
    ARM_ARCH_V6KZ.
    (arm_archs): Likewise. Also add "armv6kz" and "armv6kzt2".
    * doc/c-arm.texi: Replace "armv6zk" with "armv6kz".

gas/testsuite

    * gas/arm/attr-march-armv6kz.d: New.
    * gas/arm/attr-march-armv6kzt2.d: New.

include/opcode

    * arm.h (ARM_AEXT_V6ZK): Rename to ARM_AEXT_V6KZ.
    (ARM_AEXT_V6ZKT2): Rename to ARM_AEXT_V6KZT2.
    (ARM_ARCH_V6ZK): Rename to ARM_ARCH_V6KZ.
    (ARM_ARCH_V6ZKT2): Rename to ARM_ARCH_V6KZT2.
2015-07-21 09:43:35 +01:00
GDB Administrator 391538482e Automatic date update in version.in 2015-07-21 00:00:07 +00:00
Joel Brobecker 8b558f797a gdb.ada/info_exc.exp: Adjust expected output in "info exception" test.
Since multi_line was moved to gdb.exp in a slightly stricter form,
The gdb.ada/info_exc.exp:info exceptions test has been failing.
This is because it now expects a new-line sequence at the end of
each argument given to multi_line, including ".*". But the intent
when writing the test was to signify "could-be-nothing-at-all".
As a result, the test fails on x86_64-linux with a runtime built as
recommended, because of that
extra new-line sequence.

gdb/testsuite/ChangeLog:

        * gdb.ada/info_exc.exp: Adjust "info exceptions" expected output.
2015-07-20 15:18:24 -07:00
Han Shen 0ef3814fe1 Optimize erratum 843419 fix.
gold/ChangeLog:
	* aarch64.cc (AArch64_insn_utilities::is_adr): New method.
	(AArch64_insn_utilities::aarch64_adr_encode_imm): New method.
	(AArch64_insn_utilities::aarch64_adrp_decode_imm): New method.
	(E843419_stub): New sub-class of Erratum_stub.
	(AArch64_relobj::try_fix_erratum_843419_optimized): New method.
	(AArch64_relobj::section_needs_reloc_stub_scanning): Try optimized fix.
	(AArch64_relobj::create_erratum_stub): Add 1 argument.
	(Target_aarch64::scan_erratum_843419_span): Pass in adrp insn offset.
2015-07-20 13:20:46 -07:00
H.J. Lu 45972d0074 Update testsuite/pr18689.sh for older GCC
Older GCC, like 4.2, generates .debug_macinfo section instead of
.debug_macro section.  This patch updates testsuite/pr18689.sh to
support it.
2015-07-20 12:20:46 -07:00
Han Shen 2bca03770d Properly set arm-specific elf flags wrt hardfp.
gold/ChangeLog:
	* arm.cc (Target_arm::do_adjust_elf_header): Set flags into view.
2015-07-20 11:50:10 -07:00
H.J. Lu f54f5e31ce Clear SHF_COMPRESSED flag bit from input to output
For relocatable link, we should clear the SHF_COMPRESSED flag bit from
input group section.

	PR gold/18689
	* layout.cc (Layout::layout): Clear the SHF_COMPRESSED flag bit
	from input group section for relocatable link.
	* testsuite/Makefile.am (check_SCRIPTS): Add pr18689.sh.
	(check_DATA): Add pr18689.stdout.
	(MOSTLYCLEANFILES): Add pr18689a.o pr18689b.o.
	(pr18689.stdout): New rule.
	(pr18689a.o): Likewise.
	(pr18689b.o): Likewise.
	(pr18689.o): Likewise.
	* testsuite/pr18689.c: New file.
	* testsuite/pr18689.sh: Likewise.
	* testsuite/Makefile.in: Regenerated.
2015-07-20 10:14:35 -07:00
Doug Evans a3b5281eb9 Makefile.in (STABS_DOC_BUILD_INCLUDES): Add gdb-cfg.texi, GDBvn.texi.
gdb/doc/ChangeLog:

	* Makefile.in (STABS_DOC_BUILD_INCLUDES): Add gdb-cfg.texi, GDBvn.texi.
2015-07-20 09:21:51 -07:00
Yiran Wang c20ceeb226 Remove warning about references from shared objects to hidden symbols.
gold/
	PR gold/15574
	* resolve.cc (Symbol_table): Remove warning about references
	from shared objects to hidden symbols.
	* testsuite/Makefile.am (hidden_test): Add hidden_test.syms.
	* testsuite/Makefile.in: Regenerate.
	* testsuite/hidden_test.sh: Check dynamic symbol table; update
	expected error messages.
2015-07-20 09:19:02 -07:00
Yao Qi 3675a06a82 Fix ARI warnings to nat/aarch64-linux-hw-point.{c,h}
This patch is to fix two ARI warnings for nat/aarch64-linux-hw-point.{c,h}.

gdb:

2015-07-20  Yao Qi  <yao.qi@linaro.org>

	* nat/aarch64-linux-hw-point.c (aarch64_handle_unaligned_watchpoint):
	Re-indent the code.
	* nat/aarch64-linux-hw-point.h: Use ULONGEST rather than
	"unsigned long long".
2015-07-20 16:49:22 +01:00
H.J. Lu 7ac018954b Make binutils abort message GDB friendly
We used to generate abort messages like:

internal error, aborting at .../bfd/elf64-x86-64.c line 1554 in elf_x86_64_check_relocs

We can't cut and paste "file line ???" to GDB.  This patch changes those
abort messages to

internal error, aborting at .../bfd/elf64-x86-64.c:1554 in elf_x86_64_check_relocs

so that we can cut and paste "file:???" to GDB.

bfd/

	* bfd.c (_bfd_abort): Replace " line " with ":" in output
	message.

gas/

	* messages.c (as_assert): Replace " line " with ":" in output
	message.
	(as_abort): Likewise.

ld/

	* ldmisc.c (ld_abort): Replace " line " with ":" in output
	message.
2015-07-20 05:53:31 -07:00
Alan Modra f2d7e0f450 Regen two files
bfd/
	* po/SRC-POTFILES.in: Regenerate.
binutils/
	* doc/Makefile.in: Regenerate.
2015-07-20 14:31:23 +09:30
Alan Modra d9d11c361c ALIGN change affects cris scripts
More fallout from a2c59f28.  This one could have been fixed by simply
using ". = ALIGN (ABSOLUTE (.), 2);" but it's nicer to align the
section.

	* emulparams/criself.sh (INIT_ADDR, FINI_ADDR): Define.
	(INIT_START, FINI_START): Don't ALIGN.
	* scriptempl/elf.sc (.init, .fini): Apply INIT_ADDR/FINI_ADDR.
2015-07-20 14:29:37 +09:30
Alan Modra e474ab13ec ALIGN change affects standard scripts
a2c59f28 changed the way the unary ALIGN behaved inside output sections,
resulting in cris-elf testsuite regressions.  This patch pads out .bss
in the same manner as it was prior to the ALIGN change.

	* scripttempl/elf.sc (.ldata, .bss): Align absolute value of dot.
	* ldexp.c (is_align_conditional): Handle binary ALIGN.
	(exp_fold_tree_1): Move code setting SEC_KEEP for assignments to
	dot inside output sections.  Handle absolute expressions.
2015-07-20 14:29:21 +09:30
GDB Administrator 5e63e45255 Automatic date update in version.in 2015-07-20 00:00:07 +00:00
GDB Administrator 0bda1f8819 Automatic date update in version.in 2015-07-19 00:00:08 +00:00
Kevin Buettner b4e1fd615a dwarf2read: Allow SEC_ALLOC sections to be located at address 0.
GDB already allows statically initialized variables, located in
SEC_LOAD sections, to be placed at address 0.  This change allows
uninitialized variables (which are in SEC_ALLOC sections) to be placed
address 0 as well.

gdb/ChangeLog:

	* dwarf2read.c (dwarf2_locate_sections): Allow has_section_at_zero
	to be set for SEC_ALLOC sections too.
2015-07-18 10:10:15 -07:00
GDB Administrator ce62125ee9 Automatic date update in version.in 2015-07-18 00:00:08 +00:00
Yao Qi 554717a3ed Move common aarch64 HW breakpoint/watchpoint code to nat/
When I look at test fails related to watchpoint on aarch64-linux,
I find there are some code duplicates between GDB and GDBserver.
This patch is to move some of them to a nat/aarch64-linux-hw-point.{h,c}.

The only change I do is about the dr_changed_t typedef, which was
ULONGEST in GDB and 'unsigned long long' in GDBserver.  Each bit
of dr_changed_t represents a status of each HW breakpoint or
watchpoint register, and the max number of HW breakpoint or watchpoint
registers is 16, so the width of 'unsigned long long' is sufficient.

gdb:

2015-07-17  Yao Qi  <yao.qi@linaro.org>

	* Makefile.in (HFILES_NO_SRCDIR): Add
	nat/aarch64-linux-hw-point.h.
	(aarch64-linux-hw-point.o): New rule.
	* nat/aarch64-linux-hw-point.h: New file.
	* nat/aarch64-linux-hw-point.c: New file.
	* aarch64-linux-nat.c: Include nat/aarch64-linux-hw-point.h.
	(AARCH64_HBP_MAX_NUM): Move to nat/aarch64-linux-hw-point.h.
	(AARCH64_HWP_MAX_NUM, AARCH64_HBP_ALIGNMENT): Likewise.
	(AARCH64_HWP_ALIGNMENT): Likewise.
	(AARCH64_HWP_MAX_LEN_PER_REG): Likewise.
	(AARCH64_DEBUG_NUM_SLOTS, AARCH64_DEBUG_ARCH): Likewise.
	(AARCH64_DEBUG_ARCH_V8, DR_MARK_ALL_CHANGED): Likewise.
	(DR_MARK_N_CHANGED, DR_CLEAR_CHANGED): Likewise.
	(DR_HAS_CHANGED, DR_N_HAS_CHANGE): Likewise.
	(aarch64_num_bp_regs, aarch64_num_wp_regs): Likewise.
	(struct aarch64_debug_reg_state): Likewise.
	(struct arch_lwp_info):	Likewise.
	(aarch64_linux_set_debug_regs): Likewise.
	(aarch64_notify_debug_reg_change): Remove static.
	(aarch64_align_watchpoint): Likewise.
	(DR_CONTROL_ENABLED, DR_CONTROL_LENGTH): Likewise.
	(aarch64_watchpoint_length): Likewise.
	(aarch64_point_encode_ctrl_reg): Likewise
	(aarch64_point_is_aligned): Likewise.
	(aarch64_dr_state_insert_one_point): Likewise.
	(aarch64_dr_state_remove_one_point): Likewise.
	(aarch64_handle_breakpoint): Likewise.
	(aarch64_handle_aligned_watchpoint): Likewise.
	(aarch64_handle_unaligned_watchpoint): Likewise.
	(aarch64_handle_watchpoint): Likewise.
	* config/aarch64/linux.mh (NAT_FILE): Add
	aarch64-linux-hw-point.o.

gdb/gdbserver:

2015-07-17  Yao Qi  <yao.qi@linaro.org>

	* Makefile.in (aarch64-linux-hw-point.o): New rule.
	* configure.srv (srv_tgtobj): Append aarch64-linux-hw-point.o.
	* linux-aarch64-low.c: Include nat/aarch64-linux-hw-point.h.
	(AARCH64_HBP_MAX_NUM): Move to nat/aarch64-linux-hw-point.h.
	(AARCH64_HWP_MAX_NUM, AARCH64_HBP_ALIGNMENT): Likewise.
	(AARCH64_HWP_ALIGNMENT): Likewise.
	(AARCH64_HWP_MAX_LEN_PER_REG): Likewise.
	(AARCH64_DEBUG_NUM_SLOTS, AARCH64_DEBUG_ARCH): Likewise.
	(aarch64_num_bp_regs, aarch64_num_wp_regs): Likewise.
	(AARCH64_DEBUG_ARCH_V8, DR_MARK_ALL_CHANGED): Likewise.
	(DR_MARK_N_CHANGED, DR_CLEAR_CHANGED): Likewise.
	(DR_HAS_CHANGED, DR_N_HAS_CHANGE): Likewise.
	(struct aarch64_debug_reg_state): Likewise.
	(struct arch_lwp_info):	Likewise.
	(aarch64_align_watchpoint): Likewise.
	(DR_CONTROL_ENABLED, DR_CONTROL_LENGTH): Likewise.
	(aarch64_watchpoint_length): Likewise.
	(aarch64_point_encode_ctrl_reg): Likewise
	(aarch64_point_is_aligned): Likewise.
	(aarch64_align_watchpoint): Likewise.
	(aarch64_linux_set_debug_regs):
	(aarch64_dr_state_insert_one_point): Likewise.
	(aarch64_dr_state_remove_one_point): Likewise.
	(aarch64_handle_breakpoint): Likewise.
	(aarch64_handle_aligned_watchpoint): Likewise.
	(aarch64_handle_unaligned_watchpoint): Likewise.
	(aarch64_handle_watchpoint): Likewise.
2015-07-17 14:32:40 +01:00
Yao Qi c67ca4de63 Pass aarch64_debug_reg_state to functions
Some functions on handling HW watchpoint in GDB and GDBserver looks the
same except the code getting debug register state from current inferior.
In GDB, we get debug register state like this:

  state = aarch64_get_debug_reg_state (ptid_get_pid (inferior_ptid));

while in GDBserver, we get debug register state like this:

  state = aarch64_get_debug_reg_state ();

This patch is to move two lines above out of some functions, and pass
aarch64_debug_reg_state to these functions, in this way, these functions
are the same, and can be moved to a common place.

gdb:

2015-07-17  Yao Qi  <yao.qi@linaro.org>

	* aarch64-linux-nat.c (aarch64_handle_breakpoint): Add argument
	state and don't call aarch64_get_debug_reg_state.  All callers
	update.
	(aarch64_linux_insert_hw_breakpoint): Call
	aarch64_get_debug_reg_state earlier.
	(aarch64_linux_remove_hw_breakpoint): Likewise.
	(aarch64_handle_aligned_watchpoint): Add argument state and
	don't call aarch64_get_debug_reg_state.  All callers update.
	(aarch64_handle_unaligned_watchpoint): Likewise.
	(aarch64_handle_watchpoint): Add argument state.
	(aarch64_linux_insert_watchpoint): Call aarch64_get_debug_reg_state
	earlier.
	(aarch64_linux_remove_watchpoint): Likewise.

gdb/gdbserver:

2015-07-17  Yao Qi  <yao.qi@linaro.org>

	* linux-aarch64-low.c (aarch64_handle_breakpoint): Add argument state
	and don't aarch64_get_debug_reg_state.  All callers update.
	(aarch64_handle_aligned_watchpoint): Likewise.
	(aarch64_handle_unaligned_watchpoint): Likewise.
	(aarch64_handle_watchpoint): Likewise.
	(aarch64_insert_point): Call aarch64_get_debug_reg_state earlier.
	(aarch64_remove_point): Likewise.
2015-07-17 14:32:40 +01:00
Yao Qi 25abf97969 Use debug_printf to print debug message
Some functions in aarch64-linux-nat.c and linux-aarch64-low.c looks
the same except for the code printing debug message.  In GDB, we use
fprintf_unfiltered (gdb_stdlog, ...) while in GDBserver, we use
fprintf (stderr, ...).  This patch is to change them to use debug_printf
so that these functions are the same, and I can move them to a common
place in the following patch.

gdb:

2015-07-17  Yao Qi  <yao.qi@linaro.org>

	* aarch64-linux-nat.c (aarch64_show_debug_reg_state): Use
	debug_printf.
	(aarch64_handle_unaligned_watchpoint): Likewise.

gdb/gdbserver:

2015-07-17  Yao Qi  <yao.qi@linaro.org>

	* linux-aarch64-low.c (aarch64_show_debug_reg_state): Use
	debug_printf.
	(aarch64_handle_unaligned_watchpoint): Likewise.
2015-07-17 14:32:40 +01:00
Yao Qi 2ecd81c23c int -> enum target_hw_bp_type in aarch64-linux-nat.c
This patch is to use 'enum target_hw_bp_type' instead of int for
breakpoint type, in order to make some functions in GDB and
GDBserver looks similar.

gdb:

2015-07-17  Yao Qi  <yao.qi@linaro.org>

	* aarch64-linux-nat.c (aarch64_dr_state_insert_one_point): Change
	argument type's type to 'enum target_hw_bp_type'.
	(aarch64_dr_state_remove_one_point): Likewise.
	(aarch64_handle_breakpoint): Likewise.
	(aarch64_linux_insert_hw_breakpoint): Likewise.
	(aarch64_linux_remove_hw_breakpoint): Likewise.
	(aarch64_handle_aligned_watchpoint): Likewise.
2015-07-17 14:32:40 +01:00
Yao Qi e53b69389a Call ptid_get_pid instead of get_thread_id in aarch64_linux_get_debug_reg_capacity
aarch64_linux_get_debug_reg_capacity is called by
aarch64_linux_child_post_startup_inferior, and argument ptid is created in
inf-ptrace.c:inf_ptrace_create_inferior,

  /* On some targets, there must be some explicit actions taken after
     the inferior has been started up.  */
  target_post_startup_inferior (pid_to_ptid (pid));

so in aarch64_linux_get_debug_reg_capacity, we can get pid by ptid_get_pid,
and don't need to use get_thread_id.

gdb:

2015-07-17  Yao Qi  <yao.qi@linaro.org>

	* aarch64-linux-nat.c (aarch64_linux_get_debug_reg_capacity): Call
	ptid_get_pid instead of get_thread_id.
2015-07-17 14:07:18 +01:00
Jiong Wang 4c0a9a6fa1 [AArch64] Sort TLS reloc types alphabetically 2015-07-17 13:03:26 +01:00
Yao Qi 6a49a997b4 Fix using uninitialised values
We did a code refacotr here
https://sourceware.org/ml/gdb-patches/2013-11/msg00063.html

>	(get_current_thread): New function, factored out from ...
>	(add_current_inferior_and_thread): ... this.  Adjust.
>
>@@ -3332,18 +3371,8 @@ add_current_inferior_and_thread (char *wait_status)
>
>   inferior_ptid = null_ptid;
>
>-  /* Now, if we have thread information, update inferior_ptid.  First
>-     if we have a stop reply handy, maybe it's a T stop reply with a
>-     "thread" register we can extract the current thread from.  If
>-     not, ask the remote which is the current thread, with qC.  The
>-     former method avoids a roundtrip.  Note we don't use
>-     remote_parse_stop_reply as that makes use of the target
>-     architecture, which we haven't yet fully determined at this
>-     point.  */
>-  if (wait_status != NULL)
>-    ptid = stop_reply_extract_thread (wait_status);
>-  if (ptid_equal (ptid, null_ptid))
>-    ptid = remote_current_thread (inferior_ptid);
>+  /* Now, if we have thread information, update inferior_ptid.  */
>+  ptid = get_current_thread (wait_status);

but after the refactor, local variable ptid is used without
initialisation.  However, before this change, ptid is initialised to
null_ptid.  This error can be found by valgrind too...

==3298==    at 0x6B99BA: ptid_equal (ptid.c:80)
==3298==    by 0x4C67FF: get_current_thread (remote.c:3484)
==3298==    by 0x4C6951: add_current_inferior_and_thread (remote.c:3511)
==3298==    by 0x4C762C: extended_remote_create_inferior (remote.c:8506)
==3298==    by 0x5A5312: run_command_1 (infcmd.c:606)
==3298==    by 0x68B4FB: execute_command (top.c:463)
==3298==    by 0x5C7214: command_handler (event-top.c:494)
==3298==    by 0x5C78A3: command_line_handler (event-top.c:692)
==3298==    by 0x6DEB57: rl_callback_read_char (callback.c:220)
==3298==    by 0x5C7278: rl_callback_read_char_wrapper (event-top.c:171)
==3298==    by 0x5C72C2: stdin_event_handler (event-top.c:432)
==3298==    by 0x5C6194: gdb_wait_for_event (event-loop.c:834)

This patch initialises local variable ptid to null in get_current_thread.
We don't need to initialise ptid in add_current_inferior_and_thread,
so this patch also removes the ptid initialisation.

gdb:

2015-07-17  Yao Qi  <yao.qi@linaro.org>

	* remote.c (get_current_thread): Initialise ptid to null_ptid.
	(add_current_inferior_and_thread): Don't initialise ptid.
2015-07-17 12:14:59 +01:00
GDB Administrator 4f9b735fea Automatic date update in version.in 2015-07-17 00:00:08 +00:00
Doug Evans 6bcb1f97b1 stabs.texinfo: @include gdb-cfg.texi.
gdb/doc/ChangeLog:

	* stabs.texinfo: @include gdb-cfg.texi.
2015-07-16 09:48:03 -07:00
Jan Kratochvil 775a3298dc Fix gdb.arch/i386-biarch-core.exp FAIL on i386.
This new test fails on i686 buildbot slaves,

(gdb) core-file /home/gdb-buildbot-2/fedora-x86-64-2/fedora-i686/build/gdb/testsuite/gdb.arch/i386-biarch-core.core
"/home/gdb-buildbot-2/fedora-x86-64-2/fedora-i686/build/gdb/testsuite/gdb.arch/i386-biarch-core.core"
is not a core dump: File format not recognized
(gdb) FAIL: gdb.arch/i386-biarch-core.exp: core-file

There are two problems:

(1) The testcase did not really test if elf64-i386 is supported by GDB (BFD).
That was OK for a Fedora testcase but I forgot about it when submitting it
upstream.

I haven't really verified if the GNU target is elf64-little but it seems so,
no other one seems suitable from:
	elf32-x86-64
	elf64-big
	elf64-k1om
	elf64-l1om
	elf64-little
	elf64-x86-64
	pei-x86-64

(2) The output of the "core-file" command itself can be arbitrary as the
elf64-i386 file with x86_64 registers is really broken; but that does not
matter much, important is the following test whether core file memory is
readable.
	./configure --enable-64-bit-bfd
	(gdb) core-file /home/jkratoch/redhat/gdb-test-build32-plus64/gdb/testsuite/gdb.arch/i386-biarch-core.core^M
	warning: Couldn't find general-purpose registers in core file.^M
	Failed to read a valid object file image from memory.^M
	warning: Couldn't find general-purpose registers in core file.^M
	#0  <unavailable> in ?? ()^M
	(gdb) FAIL: gdb.arch/i386-biarch-core.exp: core-file
	x/i 0x400078^M
	   0x400078:    hlt    ^M
	(gdb) PASS: gdb.arch/i386-biarch-core.exp: .text is readable

I do not know much dejagnu but I expect 'istarget' tests against the site.exp
'target_triplet' content which is set to the primary GDB target
(--target=...).

GDB is normally never configured for primary target elf64-i386, I think BFD
does not know such explicit target, it gets recognized as elf64-little.

In fact many testfiles of the GDB testsuite are wrong as they require
'istarget' (therefore primary GDB target) even for just loading arch specific
files which would be sufficient with secondary target (--enable-targets=...)
support.

This my new patch removes this 'istarget' check as it is IMO unrelated to what
we need to test.  Although you are right we do 'x/i' and test for 'hlt' so
I think we should test also for available 'set architecture i386'.
We could also test by 'x/bx' instead of 'x/i' to avoid such additional
test/requirement.

This testcase comes from a different bug from 2009:
	https://bugzilla.redhat.com/show_bug.cgi?id=457187
	http://pkgs.fedoraproject.org/cgit/gdb.git/commit/?id=94cd124608bf0dd359cb48a710800d72c21b30c3

That bug has been fixed in the meantime but the same testcase was reproducing
this new different bug - internal error regression - so I submitted it.

We can remove the "x/bx $address" test but it was useful for the previous bug
from 2009 as that time the internal error regression did not happen, just the
core file was not recognized (which would not be detected by the proposed
ignoring of the "core-file" command output) and so the core file was not
available.  That can be tested by the "x/bx $address" test.

gdb/testsuite/ChangeLog
2015-07-16  Jan Kratochvil  <jan.kratochvil@redhat.com>

	* gdb.arch/i386-biarch-core.exp: Replace istarget
	by "complete set gnutarget". Remove expectation for the "core-file"
	command.
2015-07-16 18:01:22 +02:00
Alessandro Marzocchi 6f1c214259 Updates the ARM disassembler's output of floating point constants to include the actual floating point value.
opcodes	* arm-dis.c (print_insn_coprocessor): Added support for quarter
	float bitfield format.
	(coprocessor_opcodes): Changed VFP vmov reg,immediate to use new
	quarter float bitfield format.

tests	* gas/arm/vfpv3-const-conv.d: Update expected result due to change
	of comment for vmov reg,immediate with VFP coprocessor.
2015-07-16 16:43:16 +01:00
Alan Modra 53c3012ccc Correct readelf dynamic section buffer overlow test
PR binutils/18672
	* readelf.c (get_32bit_dynamic_section): Correct buffer limit test.
	(get_64bit_dynamic_section): Likewise.
2015-07-17 00:27:10 +09:30
Jiong Wang 77a69ff840 [AArch64][3/3] LD support BFD_RELOC_AARCH64_TLSLD_ADR_PREL21 2015-07-16 15:46:21 +01:00
Jiong Wang 6c37fedc41 [AArch64][2/3] GAS support BFD_RELOC_AARCH64_TLSLD_ADR_PREL21 2015-07-16 15:43:21 +01:00
Jiong Wang 53e8fd0f07 [AArch64][1/3] Add R_AARCH64_P32_TLSLD_ADR_PREL21 in elf header 2015-07-16 15:38:32 +01:00
Matthew Wahab 081e4c7d67 [ARM] Add crypto-neon-fp-armv8.1 as an fpu option
2015-07-16  Matthew Wahab  <matthew.wahab@arm.com>

gas/
  * config/tc-arm.c (arm_fpus): Add crypto-neon-fp-armv8.1.
  * doc/c-arm.texi (-mfpu=): Likewise.  Correct the entry for
  neon-fp-armv8.1.
2015-07-16 15:11:30 +01:00
James Greenhalgh 84b52b6651 [ARM] Make human parsing of "processor does not support instruction in mode" error messages easier
2015-07-16  James Greenhalgh  <james.greenhalgh@arm.com>

      gas/
	* config/tc-arm.c (md_assemble): Rephrase the "selected processor does
	not support ARM mode" error messages.

      gas/testsuite/
	* gas/arm/arch7em-bad.l: Update expected errors.
	* gas/arm/arch7m-bad.l: Likewise.
	* gas/arm/arm-idiv-bad.l: Likewise.
	* gas/arm/arm7-bad.l: Likewise.
	* gas/arm/armv1-bad.l: Likewise.
	* gas/arm/thumb-w-bad.l: Likewise.
2015-07-16 14:43:00 +01:00
Pierre Langlois 4bcddaceb0 [AArch64] Mark single precision pseudo registers unavailable if invalid
I noticed two failure in gdb.trace/mi-trace-frame-collected.exp:

FAIL: gdb.trace/mi-trace-frame-collected.exp: live:
  -trace-frame-collected (register)
FAIL: gdb.trace/mi-trace-frame-collected.exp: tfile:
  -trace-frame-collected (register)

In these cases, we are not collecting registers so the MI command
-trace-frame-collected should only give us the value of the PC.
However, it also gives us all of the single precision pseudo registers,
initialized with 0x0.

We can reproduce this error by simply issuing the
'maint print cooked-register' when no inferior is connected:

~~~
...
(gdb) maint print cooked-register
 Name         Nr  Rel Offset    Size  Type            Cooked value
 x0            0    0      0       8 long            <unavailable>
 x1            1    1      8       8 long            <unavailable>
 ...
 d30         130   62   1540       8 *1              <unavailable>
 d31         131   63   1548       8 *1              <unavailable>
 s0          132   64   1556       4 *1              0x00000000
 s1          133   65   1560       4 *1              0x00000000
 s2          134   66   1564       4 *1              0x00000000
 ...
 s28         160   92   1668       4 *1              0x00000000
 s29         161   93   1672       4 *1              0x00000000
 s30         162   94   1676       4 *1              0x00000000
 s31         163   95   1680       4 *1              0x00000000
 h0          164   96   1684       2 *1              <unavailable>
 h1          165   97   1686       2 *1              <unavailable>
 h2          166   98   1688       2 *1              <unavailable>
 ...
~~~

It turns out GDB does not check if S registers are valid before returning
a value for them.  It should return <unavailable> in this case.

gdb/ChangeLog:

	* aarch64-tdep.c (aarch64_pseudo_read_value): Mark S register as
	unavailable if invalid.
2015-07-16 10:16:14 +01:00
GDB Administrator bb20bd8373 Automatic date update in version.in 2015-07-16 00:00:07 +00:00
Jan Kratochvil db1ff28b60 Revert the previous 7 commits of: Validate binary before use
ddc98fbf2f Create empty nat/linux-maps.[ch] and common/target-utils.[ch]
6e5b4429db Move gdb_regex* to common/
f7af1fcd75 Prepare linux_find_memory_regions_full & co. for move
9904185cfd Move linux_find_memory_regions_full & co.
700ca40f6f gdbserver build-id attribute generator
ca5268b6be Validate symbol file using build-id
0a94970d66 Tests for validate symbol file using build-id

gdb/ChangeLog
2015-07-15  Jan Kratochvil  <jan.kratochvil@redhat.com>

	Revert the previous 6 commits:
	Create empty nat/linux-maps.[ch] and common/target-utils.[ch].
	Move gdb_regex* to common/
	Prepare linux_find_memory_regions_full & co. for move
	Move linux_find_memory_regions_full & co.
	gdbserver build-id attribute generator
	Validate symbol file using build-id

gdb/gdbserver/ChangeLog
2015-07-15  Jan Kratochvil  <jan.kratochvil@redhat.com>

	Revert the previous 3 commits:
	Move gdb_regex* to common/
	Move linux_find_memory_regions_full & co.
	gdbserver build-id attribute generator

gdb/doc/ChangeLog
2015-07-15  Jan Kratochvil  <jan.kratochvil@redhat.com>

	Revert the previous 2 commits:
	gdbserver build-id attribute generator
	Validate symbol file using build-id

gdb/testsuite/ChangeLog
2015-07-15  Jan Kratochvil  <jan.kratochvil@redhat.com>

	Revert the previous commit:
	Tests for validate symbol file using build-id.
2015-07-15 20:27:32 +02:00
Jan Kratochvil 0a94970d66 Tests for validate symbol file using build-id
New testcase.

gdb/testsuite/ChangeLog
2015-07-15  Aleksandar Ristovski  <aristovski@qnx.com

	Tests for validate symbol file using build-id.
	* gdb.base/solib-mismatch-lib.c: New file.
	* gdb.base/solib-mismatch-libmod.c: New file.
	* gdb.base/solib-mismatch.c: New file.
	* gdb.base/solib-mismatch.exp: New file.
2015-07-15 17:42:51 +02:00
Jan Kratochvil ca5268b6be Validate symbol file using build-id
Consumer part of the "build-id" attribute.

gdb/ChangeLog
2015-07-15  Aleksandar Ristovski  <aristovski@qnx.com
	    Jan Kratochvil  <jan.kratochvil@redhat.com>

	Validate symbol file using build-id.
	* NEWS (Changes since GDB 7.10): Add 'set validate-build-id'
	and 'show validate-build-id'.  Add build-id attribute.
	* solib-darwin.c (_initialize_darwin_solib): Assign validate value.
	* solib-dsbt.c (_initialize_dsbt_solib): Ditto.
	* solib-frv.c (_initialize_frv_solib): Ditto.
	* solib-spu.c (set_spu_solib_ops): Ditto.
	* solib-svr4.c: Include rsp-low.h.
	(NOTE_GNU_BUILD_ID_NAME): New define.
	(svr4_validate): New function.
	(svr4_copy_library_list): Duplicate field build_id.
	(library_list_start_library): Parse 'build-id' attribute.
	(svr4_library_attributes): Add 'build-id' attribute.
	(_initialize_svr4_solib): Assign validate value.
	* solib-target.c (solib.h): Include.
	(_initialize_solib_target): Assign validate value.
	* solib.c (validate_build_id, show_validate_build_id): New.
	(solib_map_sections): Use ops->validate.
	(clear_so): Free build_id.
	(default_solib_validate): New function.
	(_initialize_solib): Add "validate-build-id".
	* solib.h (default_solib_validate): New declaration.
	* solist.h (struct so_list): New fields 'build_idsz' and 'build_id'.
	(target_so_ops): New field 'validate'.

gdb/doc/ChangeLog
2015-07-15  Jan Kratochvil  <jan.kratochvil@redhat.com>

	* gdb.texinfo (Files): Add 'set validate-build-id'
	and 'show validate-build-id'.
2015-07-15 17:42:07 +02:00
Jan Kratochvil 700ca40f6f gdbserver build-id attribute generator
Producer part of the new "build-id" XML attribute.

gdb/ChangeLog
2015-07-15  Aleksandar Ristovski  <aristovski@qnx.com
	    Jan Kratochvil  <jan.kratochvil@redhat.com>

	gdbserver build-id attribute generator.
	* features/library-list-svr4.dtd (library-list-svr4): New
	'build-id' attribute.

gdb/doc/ChangeLog
2015-07-15  Aleksandar Ristovski  <aristovski@qnx.com
	    Jan Kratochvil  <jan.kratochvil@redhat.com>

	gdbserver build-id attribute generator.
	* gdb.texinfo (Library List Format for SVR4 Targets): Add
	'build-id' in description, example, new attribute in dtd.

gdb/gdbserver/ChangeLog
2015-07-15  Aleksandar Ristovski  <aristovski@qnx.com
	    Jan Kratochvil  <jan.kratochvil@redhat.com>

	gdbserver build-id attribute generator.
	* linux-low.c (nat/linux-maps.h, search.h, rsp-low.h): Include.
	(ElfXX_Ehdr, ElfXX_Phdr, ElfXX_Nhdr): New.
	(ELFXX_FLD, ELFXX_SIZEOF, ELFXX_ROUNDUP, BUILD_ID_INVALID): New.
	(find_phdr): New.
	(get_dynamic): Use find_pdhr to traverse program headers.
	(struct mapping_entry, mapping_entry_s, free_mapping_entry_vec)
	(compare_mapping_entry_range, struct find_memory_region_callback_data)
	(read_build_id, find_memory_region_callback, lrfind_mapping_entry)
	(get_hex_build_id): New.
	(linux_qxfer_libraries_svr4): Add optional build-id attribute
	to reply XML document.
2015-07-15 17:41:18 +02:00
Jan Kratochvil 9904185cfd Move linux_find_memory_regions_full & co.
This should be just a move with no changes.

gdb/ChangeLog
2015-07-15  Aleksandar Ristovski  <aristovski@qnx.com
	    Jan Kratochvil  <jan.kratochvil@redhat.com>

	Move linux_find_memory_regions_full & co.
	* linux-tdep.c (nat/linux-maps.h): Include.
	(gdb_regex.h): Remove the include.
	(enum filterflags, struct smaps_vmflags, read_mapping, decode_vmflags)
	(mapping_is_anonymous_p, dump_mapping_p): Moved to nat/linux-maps.c.
	(linux_find_memory_region_ftype): Moved typedef to nat/linux-maps.h.
	(linux_find_memory_regions_full): Moved definition to nat/linux-maps.c.
	* nat/linux-maps.c: Include ctype.h, target/target-utils.h, gdb_regex.h
	and target/target.h.
	(struct smaps_vmflags, read_mapping, decode_vmflags)
	(mapping_is_anonymous_p, dump_mapping_p): Move from linux-tdep.c.
	(linux_find_memory_regions_full): Move from linux-tdep.c.
	* nat/linux-maps.h (read_mapping): New declaration.
	(linux_find_memory_region_ftype, enum filterflags): Moved from
	linux-tdep.c.
	(linux_find_memory_regions_full): New declaration.
	* target.c (target/target-utils.h): Include.
	(read_alloc_pread_ftype): Moved typedef to target/target-utils.h.
	(read_alloc, read_stralloc_func_ftype, read_stralloc): Moved
	definitions to target/target-utils.c.
	* target.h (target_fileio_read_stralloc): Move it to target/target.h.
	* target/target-utils.c (read_alloc, read_stralloc): Move definitions
	from target.c.
	* target/target-utils.h (read_alloc_pread_ftype): New typedef.
	(read_alloc): New declaration.
	(read_stralloc_func_ftype): New typedef.
	(read_stralloc): New declaration.
	* target/target.h (target_fileio_read_stralloc): Move it from target.h.

gdb/gdbserver/ChangeLog
2015-07-15  Aleksandar Ristovski  <aristovski@qnx.com
	    Jan Kratochvil  <jan.kratochvil@redhat.com>

	* target.c: Include target/target-utils.h and fcntl.h.
	(target_fileio_read_stralloc_1_pread, target_fileio_read_stralloc_1)
	(target_fileio_read_stralloc): New functions.
2015-07-15 17:40:38 +02:00