binutils-gdb.git
8 years agoUse address sized relocs in remove-relocs-01.s
Alan Modra [Fri, 15 Jul 2016 07:03:53 +0000 (16:33 +0930)]
Use address sized relocs in remove-relocs-01.s

Fixes failures on alpha, ia64, mcore, metag, moxie, and pj due to lack
of 16-bit relocs.

* testsuite/binutils-all/remove-relocs-01.s: Use .dc.a, not .word.

8 years agoCOFF buffer overflow in mark_relocs
Alan Modra [Fri, 15 Jul 2016 07:32:00 +0000 (17:02 +0930)]
COFF buffer overflow in mark_relocs

* cofflink.c (mark_relocs): Exclude relocs with -1 r_symndx
from marking sym_indices.

8 years agoAutomatic date update in version.in
GDB Administrator [Fri, 15 Jul 2016 00:00:23 +0000 (00:00 +0000)]
Automatic date update in version.in

8 years agoMIPS/GAS: Don't convert PC-relative REL relocs against absolute symbols
Maciej W. Rozycki [Tue, 12 Jul 2016 00:31:29 +0000 (01:31 +0100)]
MIPS/GAS: Don't convert PC-relative REL relocs against absolute symbols

Don't convert PC-relative REL relocations against absolute symbols to
section-relative references and retain the original symbol reference
instead.  Offsets into the absolute section may overflow the limited
range of their in-place addend field, causing an assembly error, e.g.:

$ cat test.s
.text
.globl foo
.ent foo
foo:
b bar
.end foo

.set bar, 0x12345678
$ as -EB -32 -o test.o test.s
test.s: Assembler messages:
test.s:3: Error: relocation overflow
$

With the original reference retained the source can now be assembled and
linked successfully:

$ as -EB -32 -o test.o test.s
$ objdump -dr test.o

test.o:     file format elf32-tradbigmips

Disassembly of section .text:

00000000 <foo>:
   0: 1000ffff  b 0 <foo>
0: R_MIPS_PC16 bar
   4: 00000000  nop
...
$ ld -melf32btsmip -Ttext 0x12340000 -e foo -o test test.o
$ objdump -dr test

test:     file format elf32-tradbigmips

Disassembly of section .text:

12340000 <foo>:
12340000: 1000159d  b 12345678 <bar>
12340004: 00000000  nop
...
$

For simplicity always retain the original symbol reference, even if it
would indeed fit.

Making TC_FORCE_RELOCATION_ABS separate from TC_FORCE_RELOCATION causes
R_MICROMIPS_PC7_S1, R_MICROMIPS_PC10_S1 and R_MICROMIPS_PC16_S1 branch
relocations against absolute symbols to be converted on RELA targets to
section-relative references.  This is an intended effect of this change.
Absolute symbols carry no ISA annotation in their `st_other' field and
their value is not going to change with linker relaxation, so it is safe
to discard the original reference and keep the calculated final symbol
value only in the relocation's addend.

Similarly R6 R_MIPS_PCHI16 and R_MIPS_PCLO16 relocations referring
absolute symbols can be safely converted even on REL targets, as there
the in-place addend of these relocations covers the entire 32-bit
address space so it can hold the calculated final symbol value, and
likewise the value referred won't be affected by any linker relaxation.

Add a set of suitable test cases and enable REL linker tests which now
work and were previously used as dump patterns for RELA tests only.

gas/
* config/tc-mips.h (TC_FORCE_RELOCATION_ABS): New macro.
(mips_force_relocation_abs): New prototype.
* config/tc-mips.c (mips_force_relocation_abs): New function.
* testsuite/gas/mips/branch-absolute.d: Adjust dump patterns.
* testsuite/gas/mips/mips16-branch-absolute.d: Likewise.
* testsuite/gas/mips/micromips-branch-absolute-n32.d: Likewise.
* testsuite/gas/mips/micromips-branch-absolute-n64.d: Likewise.
* testsuite/gas/mips/micromips-branch-absolute-addend-n32.d:
Likewise.
* testsuite/gas/mips/micromips-branch-absolute-addend-n64.d:
Likewise.
* testsuite/gas/mips/branch-absolute-addend.d: New test.
* testsuite/gas/mips/mips16-branch-absolute-addend.d: New test.
* testsuite/gas/mips/micromips-branch-absolute-addend.d: New
test.
* testsuite/gas/mips/mips.exp: Run the new tests.

ld/
* testsuite/ld-mips-elf/mips-elf.exp: Run
`branch-absolute-addend', `mips16-branch-absolute',
`mips16-branch-absolute-addend' and
`micromips-branch-absolute-addend'.

8 years agoMIPS/GAS: Keep the ISA bit in the addend of branch relocations
Maciej W. Rozycki [Tue, 12 Jul 2016 00:30:48 +0000 (01:30 +0100)]
MIPS/GAS: Keep the ISA bit in the addend of branch relocations

Correct a problem with the ISA bit being stripped from the addend of
compressed branch relocations, affecting RELA targets.  It has been
there since microMIPS support has been added, with:

commit df58fc944dbc6d5efd8d3826241b64b6af22f447
Author: Richard Sandiford <rdsandiford@googlemail.com>
Date:   Sun Jul 24 14:20:15 2011 +0000

<https://sourceware.org/ml/binutils/2011-07/msg00198.html>, ("MIPS:
microMIPS ASE support") and R_MICROMIPS_PC7_S1, R_MICROMIPS_PC10_S1 and
R_MICROMIPS_PC16_S1 relocations originally affected, and the
R_MIPS16_PC16_S1 relocation recently added with commit c9775dde3277
("MIPS16: Add R_MIPS16_PC16_S1 branch relocation support") actually
triggering a linker error, due to its heightened processing strictness
level:

$ cat test.s
.text
.set mips16
foo:
b bar

.set bar, 0x1235
.align 4, 0
$ as -EB -n32 -o test.o test.s
$ objdump -dr test.o

test.o:     file format elf32-ntradbigmips

Disassembly of section .text:

00000000 <foo>:
   0: f000 1000  b 4 <foo+0x4>
0: R_MIPS16_PC16_S1 *ABS*+0x1230
...
$ ld -melf32btsmipn32 -Ttext 0 -e 0 -o test test.o
test.o: In function `foo':
(.text+0x0): Branch to a non-instruction-aligned address
$

This is because the ISA bit of the branch target does not match the ISA
bit of the referring branch, hardwired to 1 of course.

Retain the ISA bit then, so that the linker knows this is really MIPS16
code referred:

$ objdump -dr fixed.o

fixed.o:     file format elf32-ntradbigmips

Disassembly of section .text:

00000000 <foo>:
   0: f000 1000  b 4 <foo+0x4>
0: R_MIPS16_PC16_S1 *ABS*+0x1231
...
$ ld -melf32btsmipn32 -Ttext 0 -e 0 -o fixed fixed.o
$

Add a set of MIPS16 tests to cover the relevant cases, excluding linker
tests though which would overflow the in-place addend on REL targets and
use them as dump patterns for RELA targets only.

gas/
* config/tc-mips.c (md_apply_fix) <BFD_RELOC_MIPS16_16_PCREL_S1>
<BFD_RELOC_MICROMIPS_7_PCREL_S1, BFD_RELOC_MICROMIPS_10_PCREL_S1>
<BFD_RELOC_MICROMIPS_16_PCREL_S1>: Keep the ISA bit in the
addend calculated.
* testsuite/gas/mips/mips16-branch-absolute.s: Set the ISA bit
in `bar', export `foo'.
* testsuite/gas/mips/mips16-branch-absolute.d: Adjust
accordingly.
* testsuite/gas/mips/mips16-branch-absolute-n32.d: Likewise.
* testsuite/gas/mips/mips16-branch-absolute-n64.d: Likewise.
* testsuite/gas/mips/mips16-branch-absolute-addend-n32.d:
Likewise.
* testsuite/gas/mips/mips16-branch-absolute-addend-n64.d:
Likewise.

ld/
* testsuite/ld-mips-elf/mips16-branch-absolute.d: New test.
* testsuite/ld-mips-elf/mips16-branch-absolute-n32.d: New test.
* testsuite/ld-mips-elf/mips16-branch-absolute-n64.d: New test.
* testsuite/ld-mips-elf/mips16-branch-absolute-addend.d: New
test.
* testsuite/ld-mips-elf/mips16-branch-absolute-addend-n32.d: New
test.
* testsuite/ld-mips-elf/mips16-branch-absolute-addend-n64.d: New
test.
* testsuite/ld-mips-elf/mips-elf.exp: Run the new tests, except
from `mips16-branch-absolute' and
`mips16-branch-absolute-addend', referred indirectly only.

8 years agoBFD: Let targets handle relocations against absolute symbols
Maciej W. Rozycki [Tue, 12 Jul 2016 00:30:01 +0000 (01:30 +0100)]
BFD: Let targets handle relocations against absolute symbols

Fix a generic BFD issue with relocations against absolute symbols, which
are installed without using any individual relocation handler provided
by the backend.  This causes any absolute section's addend to be lost on
REL targets such as o32 MIPS, and also relocation-specific calculation
adjustments are not made.

As an example assembling this program:

$ cat test.s
.text
foo:
b bar
b baz

.set bar, 0x1234
$ as -EB -32 -o test-o32.o test.s
$ as -EB -n32 -o test-n32.o test.s

produces this binary code:

$ objdump -dr test-o32.o test-n32.o

test-o32.o:     file format elf32-tradbigmips

Disassembly of section .text:

00000000 <foo>:
   0: 10000000  b 4 <foo+0x4>
0: R_MIPS_PC16 *ABS*
   4: 00000000  nop
   8: 1000ffff  b 8 <foo+0x8>
8: R_MIPS_PC16 baz
   c: 00000000  nop

test-n32.o:     file format elf32-ntradbigmips

Disassembly of section .text:

00000000 <foo>:
   0: 10000000  b 4 <foo+0x4>
0: R_MIPS_PC16 *ABS*+0x1230
   4: 00000000  nop
   8: 10000000  b c <foo+0xc>
8: R_MIPS_PC16 baz-0x4
   c: 00000000  nop
$

where it is clearly visible in `test-o32.o', which uses REL relocations,
that the absolute section's addend equivalent to the value of `bar' -- a
reference to which cannot be fully resolved at the assembly time,
because the reference is PC-relative -- has been lost, as has been the
relocation-specific adjustment of -4, required to take into account the
PC+4-relative calculation made by hardware with branches and seen in the
external symbol reference to `baz' as the `ffff' addend encoded in the
instruction word.  In `test-n32.o', which uses RELA relocations, the
absolute section's addend has been correctly retained.

Give precedence then in `bfd_perform_relocation' and
`bfd_install_relocation' to any individual relocation handler the
backend selected may have provided, while still resorting to the generic
calculation otherwise.  This retains the semantics which we've had since
forever or before the beginning of our repository history, and is at the
very least compatible with `bfd_elf_generic_reloc' being used as the
handler.

Retain the `bfd_is_und_section' check unchanged at the beginning of
`bfd_perform_relocation' since this does not affect the semantics of the
function.  The check returns the same `bfd_reloc_undefined' code the
check for a null `howto' does, so swapping the two does not matter.
Also the check is is mutually exclusive with the `bfd_is_abs_section'
check, since a section cannot be absolute and undefined both at once, so
swapping the two does not matter either.

With this change applied the program quoted above now has the in-place
addend correctly calculated and installed in the field being relocated:

$ objdump -dr fixed-o32.o

fixed-o32.o:     file format elf32-tradbigmips

Disassembly of section .text:

00000000 <foo>:
   0: 1000048c  b 1234 <bar>
0: R_MIPS_PC16 *ABS*
   4: 00000000  nop
   8: 1000ffff  b 8 <foo+0x8>
8: R_MIPS_PC16 baz
   c: 00000000  nop
$

Add a set of MIPS tests to cover the relevant cases, including absolute
symbols with addends, and verifying that PC-relative relocations against
symbols concerned resolve to the same value in the final link regardless
of whether the REL or the RELA relocation form is used.  Exclude linker
tests though which would overflow the in-place addend on REL targets and
use them as dump patterns for RELA targets only.

bfd/
* reloc.c (bfd_perform_relocation): Try the `howto' handler
first with relocations against absolute symbols.
(bfd_install_relocation): Likewise.

gas/
* testsuite/gas/mips/mips16-branch-absolute.d: Update patterns.
* testsuite/gas/mips/branch-absolute.d: New test.
* testsuite/gas/mips/branch-absolute-n32.d: New test.
* testsuite/gas/mips/branch-absolute-n64.d: New test.
* testsuite/gas/mips/branch-absolute-addend-n32.d: New test.
* testsuite/gas/mips/branch-absolute-addend-n64.d: New test.
* testsuite/gas/mips/mips16-branch-absolute-n32.d: New test.
* testsuite/gas/mips/mips16-branch-absolute-n64.d: New test.
* testsuite/gas/mips/mips16-branch-absolute-addend-n32.d: New
test.
* testsuite/gas/mips/mips16-branch-absolute-addend-n64.d: New
test.
* testsuite/gas/mips/micromips-branch-absolute.d: New test.
* testsuite/gas/mips/micromips-branch-absolute-n32.d: New test.
* testsuite/gas/mips/micromips-branch-absolute-n64.d: New test.
* testsuite/gas/mips/micromips-branch-absolute-addend-n32.d: New
test.
* testsuite/gas/mips/micromips-branch-absolute-addend-n64.d: New
test.
* testsuite/gas/mips/branch-absolute.s: New test source.
* testsuite/gas/mips/branch-absolute-addend.s: New test source.
* testsuite/gas/mips/mips16-branch-absolute-addend.s: New test
source.
* testsuite/gas/mips/micromips-branch-absolute.s: New test
source.
* testsuite/gas/mips/micromips-branch-absolute-addend.s: New
test source.
* testsuite/gas/mips/mips.exp: Run the new tests.

ld/
* testsuite/ld-mips-elf/branch-absolute.d: New test.
* testsuite/ld-mips-elf/branch-absolute-n32.d: New test.
* testsuite/ld-mips-elf/branch-absolute-n64.d: New test.
* testsuite/ld-mips-elf/branch-absolute-addend.d: New test.
* testsuite/ld-mips-elf/branch-absolute-addend-n32.d: New test.
* testsuite/ld-mips-elf/branch-absolute-addend-n64.d: New test.
* testsuite/ld-mips-elf/micromips-branch-absolute.d: New test.
* testsuite/ld-mips-elf/micromips-branch-absolute-n32.d: New
test.
* testsuite/ld-mips-elf/micromips-branch-absolute-n64.d: New
test.
* testsuite/ld-mips-elf/micromips-branch-absolute-addend.d: New
test.
* testsuite/ld-mips-elf/micromips-branch-absolute-addend-n32.d:
New test.
* testsuite/ld-mips-elf/micromips-branch-absolute-addend-n64.d:
New test.
* testsuite/ld-mips-elf/mips-elf.exp: Run the new tests, except
from `branch-absolute-addend' and
`micromips-branch-absolute-addend', referred indirectly only.

8 years agoAdd missing newline to py-breakpoint.c
Tom Tromey [Thu, 14 Jul 2016 17:50:55 +0000 (11:50 -0600)]
Add missing newline to py-breakpoint.c

In https://sourceware.org/ml/gdb-patches/2016-07/msg00152.html,
Yao noted that a patch of mine was missing a newline.

I thought I had fixed this but when looking today I realized it was
not fixed.  This patch adds it.

I'm checking this in as obvious.

2016-07-14  Tom Tromey  <tom@tromey.com>

* python/py-breakpoint.c (gdbpy_breakpoint_deleted): Add missing
newline.

8 years agoRemove unused variables
Tom Tromey [Mon, 6 Jun 2016 20:18:30 +0000 (14:18 -0600)]
Remove unused variables

This patch removes set-but-unused variables.  This holds all the
removals I consider to be simple and relatively uncontroversial.

2016-07-14  Tom Tromey  <tom@tromey.com>

* mips-tdep.c (micromips_scan_prologue): Remove "frame_addr".
(mips_o32_push_dummy_call): Remove "stack_used_p".
* aarch64-tdep.c (aarch64_record_data_proc_imm): Remove
"insn_bit28".
* rust-lang.c (rust_print_type): Remove "len".
* rust-exp.y (super_name): Remove "current_len".
* python/py-framefilter.c (py_print_type): Remove "type".
* mdebugread.c (parse_partial_symbols): Remove
"past_first_source_file".
<N_SO>: Remove "valu", "first_so_symnum", "prev_textlow_not_set".
* m2-valprint.c (m2_print_unbounded_array): Remove
"content_type".
(m2_val_print): Remove "i".
* linespec.c (unexpected_linespec_error): Remove "cleanup".
* f-valprint.c (f_val_print): Remove "i".
* elfread.c (elf_symtab_read): Remove "offset".
* dwarf2-frame.c (dwarf2_fetch_cfa_info): Remove "addr_size".
* jit.c (jit_dealloc_cache): Remove "i" and "frame_arch".

8 years agoRemove some variables but call functions for side effects
Tom Tromey [Mon, 6 Jun 2016 20:18:23 +0000 (14:18 -0600)]
Remove some variables but call functions for side effects

This patch consolidates the (possibly-questionable) spots where we
remove a declaration but continue to call some function for side
effects.  In a couple of cases it wasn't entirely clear to me that
this mattered; and in some other cases it might be more aesthetically
pleasing to use ATTRIBUTE_UNUSED.  So, I broke this out into a
separate patch for simpler review.

2016-07-14  Tom Tromey  <tom@tromey.com>

* arch-utils.c (default_skip_permanent_breakpoint): Remove
"bp_insn".
* disasm.c (do_assembly_only): Remove "num_displayed".
* dwarf2read.c (read_abbrev_offset): Remove "length".
(dwarf_decode_macro_bytes) <DW_MACINFO_vendor_ext>: Remove
"constant".
* m32c-tdep.c (make_regs): Remove "r2hl", "r3hl", and "intbhl".
* microblaze-tdep.c (microblaze_frame_cache): Remove "func".
* tracefile.c (trace_save): Remove "status".

8 years agoRemove some unused overlay code
Tom Tromey [Mon, 6 Jun 2016 19:45:59 +0000 (13:45 -0600)]
Remove some unused overlay code

This patch removes some unneeded initializations in overlay code in
symfile.c.  It also deletes some old commented-out code.

2016-07-14  Tom Tromey  <tom@tromey.com>

* symfile.c (simple_overlay_update_1): Remove initialization
of "size", and commented-out code.
(simple_overlay_update): Likewise.

8 years agoUse getcurx in curses code
Tom Tromey [Tue, 28 Jun 2016 20:25:49 +0000 (14:25 -0600)]
Use getcurx in curses code

As suggested by Pedro, this changes a few spots to use getcurx, rather
than getyx.  This avoids some unused variable warnings.

2016-07-14  Tom Tromey  <tom@tromey.com>

* tui/tui-winsource.c (tui_show_source_line): Use getcurx.
* tui/tui-io.c (tui_puts): Use getcurx.
(tui_redisplay_readline): Likewise.

8 years agoAdd one use of ATTRIBUTE_UNUSED
Tom Tromey [Mon, 6 Jun 2016 19:43:50 +0000 (13:43 -0600)]
Add one use of ATTRIBUTE_UNUSED

One spot needed ATTRIBUTE_UNUSED to cope with the new warnings.

The case in inflow.c is just a mass of ifdefs; and while the only use
of "result" is guarded by "#if 0", I thought it simplest to leave it
all in place.

2016-07-14  Tom Tromey  <tom@tromey.com>

* inflow.c (child_terminal_ours_1): Use ATTRIBUTE_UNUSED.

8 years agoChange reopen_exec_file to check result of stat
Tom Tromey [Mon, 6 Jun 2016 19:01:52 +0000 (13:01 -0600)]
Change reopen_exec_file to check result of stat

This seems to be a real bug found by -Wunused-but-set-variable.  If
"stat" fails for some reason, gdb would use the uninitialized "st".

2016-07-14  Tom Tromey  <tom@tromey.com>

* corefile.c (reopen_exec_file): Only examine st.st_mtime if stat
succeeded.

8 years agoobjcopy/strip: Add option --remove-relocations=SECTIONPATTERN
Andrew Burgess [Fri, 21 Aug 2015 19:08:26 +0000 (20:08 +0100)]
objcopy/strip: Add option --remove-relocations=SECTIONPATTERN

The objcopy and strip tools make use of the bfd library to manipulate
the state of the input file (to produce an output file).  Within the
input file (for ELF at least), relocations are held within a section,
and so, if the user wanted to remove the relocations, but keep the
section to which the relocations would have been applied, it is tempting
to think that specifying the name of a relocation section to objcopy's
--remove-section option might do what you want, for example:

   objcopy --remove-section=.rela.text input.elf output.elf

However, this does not work.  The reason is that when the input file is
loaded, relocations are not managed as sections, but are, instead,
loaded as data associated with the section to which the relocations
would be applied.  In our example above the relocations in '.rela.text'
are held as data on the section '.text' once 'input.elf' is loaded.

One task that objcopy and strip do is copy the relocations from the
input file to the output file if the section is also being copied from
the input file to the output file.

This commit adds a new command line option for objcopy and strip,
--remove-relocations, which can be used to remove the relocations, while
keeping the section that the relocations would have been applied to, for
example:

    objcopy --remove-relocations=.text input.elf output.elf

in this case the section '.text' will appear in both 'input.elf' and
'output.elf', but any relocations in 'input.elf' that apply to '.text'
will not be present in 'output.elf'.

I have also added a special case to the handling of --remove-section
that spots if a user tries to remove a relocation section (currently
this is done by spotting the '.rela.' or '.rel.' prefix) and forwards
the request to --remove-relocations.

As with --remove-section and --only-section the --remove-relocations
option supports the '!' prefix on the section-patterns it takes to allow
for sections to be specifically not matched.

There are tests for all the new functionality.

binutils/ChangeLog:

* doc/binutils.texi (objcopy): Document 'remove-relocations'.
(strip): Likewise.
* objcopy.c (SECTION_CONTEXT_REMOVE_RELOCS): Define.
(enum command_line_switch): Add 'OPTION_REMOVE_RELOCS'.
(struct option strip_options): Add 'remove-relocations'.
(struct option copy_options): Likewise.
(copy_usage): Likewise.
(strip_usage): Likewise.
(handle_remove_relocations_option): New function.
(discard_relocations): New function.
(handle_remove_section_option): New function.
(copy_relocations_in_section): Use discard_relocations.
(strip_main): Use handle_remove_section_option for
'remove-section', and handle 'remove-relocations' option.
(copy_main): Likewise.
* testsuite/binutils-all/objcopy.exp: Run new tests.
* testsuite/binutils-all/remove-relocs-01.d: New file.
* testsuite/binutils-all/remove-relocs-01.s: New file.
* testsuite/binutils-all/remove-relocs-02.d: New file.
* testsuite/binutils-all/remove-relocs-03.d: New file.
* testsuite/binutils-all/remove-relocs-04.d: New file.
* testsuite/binutils-all/remove-relocs-05.d: New file.
* testsuite/binutils-all/remove-relocs-06.d: New file.

8 years agoobjcopy/strip: Allow section patterns starting with '!'.
Andrew Burgess [Mon, 24 Aug 2015 12:02:39 +0000 (13:02 +0100)]
objcopy/strip: Allow section patterns starting with '!'.

For symbol matching, prefixing a pattern with '!' will indicate a
non-matching pattern, however, this is not the case for section
patterns.  As a result it is not possible to say "apply this action to
all sections except ...".

With this commit the objcopy and strip tools now support '!' prefix for
section patterns, so we can say:

  objcopy --remove-section="*" --remove-section="!.text*"

Which will remove all sections, except those matching the pattern
'.text*'.

binutils/ChangeLog:

* objcopy.c (find_section_list): Handle section patterns starting
with '!' being a non-matching pattern.
* doc/binutils.texi (objcopy): Give example of using '!' with
--remove-section and --only-section.
(strip): Give example of using '!' with --remove-section.
* testsuite/binutils-all/data-sections.s: New file.
* testsuite/binutils-all/only-section-01.d: New file.
* testsuite/binutils-all/remove-section-01.d: New file.
* testsuite/binutils-all/objcopy.exp: Run new tests.
* NEWS: Mention new feature.

8 years agoSmall improvements to the ARM simulator to cope with illegal binaries.
Nick Clifton [Thu, 14 Jul 2016 09:38:07 +0000 (10:38 +0100)]
Small improvements to the ARM simulator to cope with illegal binaries.

* armemu.c (Multiply64): Only issue error messages about invalid
arguments if debugging is enabled.
* armos.c (ARMul_OSHandleSWI): Ignore invalid flags.

8 years ago[ARC] Fix/improve small data support.
Claudiu Zissulescu [Fri, 8 Jul 2016 09:55:49 +0000 (11:55 +0200)]
[ARC] Fix/improve small data support.

The R_ARC_SDA32 is wrongly described as a ME relocation, fix it.  Offset the
__SDATA_BEGIN__ to take advantage of the signed 9-bit field of the
load/store instructions.

include/
2016-07-08  Claudiu Zissulescu  <claziss@synopsys.com>

* elf/arc-reloc.def (ARC_SDA32): Don't use ME transformation.

ld/
2016-07-08  Claudiu Zissulescu  <claziss@synopsys.com>

* emulparams/arcelf.sh (SDATA_START_SYMBOLS): Add offset.
* testsuite/ld-arc/sda-relocs.dd: New file.
* testsuite/ld-arc/sda-relocs.ld: Likewise.
* testsuite/ld-arc/sda-relocs.rd: Likewise.
* testsuite/ld-arc/sda-relocs.s: Likewise.
* testsuite/ld-arc/arc.exp: Add SDA tests.

8 years agoAutomatic date update in version.in
GDB Administrator [Thu, 14 Jul 2016 00:00:24 +0000 (00:00 +0000)]
Automatic date update in version.in

8 years agoPR python/15620, PR python/18620 - breakpoint events in Python
Tom Tromey [Tue, 5 May 2015 03:49:11 +0000 (21:49 -0600)]
PR python/15620, PR python/18620 - breakpoint events in Python

This patch adds some breakpoint events to Python.  In particular,
there is a creation event that is emitted when a breakpoint is
created; a modification event that is emitted when a breakpoint
changes somehow; and a deletion event that is emitted when a
breakpoint is deleted.

In this patch, the event's payload is the breakpoint itself.  I
considered making a new event type to hold the breakpoint, but I
didn't see a need.  Still, I thought I would mention this as a spot
where some other choice is possible.

Built and regtested on x86-64 Fedora 23.

2016-07-13  Tom Tromey  <tom@tromey.com>

PR python/15620, PR python/18620:
* python/py-evts.c (gdbpy_initialize_py_events): Call
add_new_registry for new events.
* python/py-events.h (events_object) <breakpoint_created,
breakpoint_deleted, breakpoint_modified>: New fields.
* python/py-breakpoint.c (gdbpy_breakpoint_created): Emit the
breakpoint changed event.
(gdbpy_breakpoint_deleted): Emit the breakpoint deleted event.
(gdbpy_breakpoint_modified): New function.
(gdbpy_initialize_breakpoints): Attach to the breakpoint modified
observer.

2016-07-13  Tom Tromey  <tom@tromey.com>

PR python/15620, PR python/18620:
* python.texi (Events In Python): Document new breakpoint events.

2016-07-13  Tom Tromey  <tom@tromey.com>

PR python/15620, PR python/18620:
* gdb.python/py-breakpoint.exp (connect_event, check_last_event)
(test_bkpt_events): New procs.

8 years agoPR python/17698 - add Breakpoint.pending
Tom Tromey [Thu, 19 May 2016 21:51:00 +0000 (15:51 -0600)]
PR python/17698 - add Breakpoint.pending

This patch adds a "pending" attribute to gdb.Breakpoint.

Built and regtested on x86-64 Fedora 23.

2016-07-13  Tom Tromey  <tom@tromey.com>

PR python/17698:
* NEWS: Update.
* python/py-breakpoint.c (bppy_get_pending): New function.
(breakpoint_object_getset): Add entry for "pending".
* breakpoint.h (pending_breakpoint_p): Declare.
* breakpoint.c (pending_breakpoint_p): New function.

2016-07-13  Tom Tromey  <tom@tromey.com>

PR python/17698:
* python.texi (Breakpoints In Python): Document
Breakpoint.pending.

2016-07-13  Tom Tromey  <tom@tromey.com>

PR python/17698:
* gdb.python/py-breakpoint.exp (test_bkpt_basic): Add "pending"
test.
(test_watchpoints): Likewise.
(test_bkpt_pending): New proc.

8 years agouse user_breakpoint_p in python code
Tom Tromey [Thu, 19 May 2016 21:52:52 +0000 (15:52 -0600)]
use user_breakpoint_p in python code

I noticed that bppy_get_visibility and gdbpy_breakpoint_created
implemented their own visibility checks, but subtly different from
user_breakpoint_p.  I think the latter is more correct, and so changed
the Python code to use it.

I suspect there isn't a decent way to test this, so no new test.

Built and regtested on x86-64 Fedora 23.

2016-07-13  Tom Tromey  <tom@tromey.com>

* python/py-breakpoint.c (bppy_get_visibility)
(gdbpy_breakpoint_created): Use user_breakpoint_p.

8 years agoRearrange Python breakpoint node in documentation
Tom Tromey [Thu, 19 May 2016 21:40:54 +0000 (15:40 -0600)]
Rearrange Python breakpoint node in documentation

I noticed that the Python breakpoint documentation was ordered a bit
oddly.  It documented the constructor; then the stop method; then the
watchpoint constants (used for the constructor); then various other
methods and attributes; then the other constants used by the
constructor; and then finally some more methods and attributes.

This patch rearranges the node a little to move the constants to just
after the constructor and before the other methods and attributes.

2016-07-13  Tom Tromey  <tom@tromey.com>

* python.texi (Breakpoints In Python): Move table of types and
table of watchpoint types earlier in node.

8 years agoFix PR cli/18053
Tom Tromey [Mon, 2 Mar 2015 03:33:00 +0000 (20:33 -0700)]
Fix PR cli/18053

PR cli/18053 concerns a couple of minor bugs in the JIT debuginfo
support.  First, jit-reader-load should use filename completion and
support tilde expansion.  Second, the help for jit-reader-unload is
incorrect.  While working on this I also realized that
jit-reader-unload should use the no-op completer, so I've included
that as well.

Built and regtested on x86-64 Fedora 23.  A completer test for
jit-reader-load is included, but not a tilde-expansion test, as I
couldn't think of a reliable way to test that.

2016-07-13  Tom Tromey  <tom@tromey.com>

PR cli/18053:
* jit.c (jit_reader_load_command): Use tilde_expand.
(_initialize_jit): Fix help for jit-reader-unload.  Set completer
for new commands.

2016-07-13  Tom Tromey  <tom@tromey.com>

PR cli/18053:
* gdb.base/jit-so.exp (one_jit_test): Add jit-reader-load
completion test.

8 years agoMIPS/opcodes: Address issues with NAL disassembly
Maciej W. Rozycki [Fri, 8 Jul 2016 15:07:39 +0000 (16:07 +0100)]
MIPS/opcodes: Address issues with NAL disassembly

Address issues with the disassembly of the NAL assembly idiom and R6
instruction introduced with commit 7361da2c952e ("Add support for MIPS
R6.") and then further tweaked with commit b9121b573e2e ("Add in a JALRC
alias and fix the NAL instruction.").  As from R6 this instruction has
replaced the encoding of `bltzal $0, . + 4' as the solely supported form
of the former BLTZAL instruction for the regular MIPS ISA.

The instruction is marked as an alias only in our regular MIPS opcode
table, making it fail to disassemble in R6 code if the `no-aliases'
machine option has been passed to `objdump':

$ cat test.s
.text
foo:
nal
$ as -mips64r6 -o test.o test.s
$ objdump -dr --prefix-addresses --show-raw-insn -M no-aliases test.o

nal.o:     file format elf32-tradbigmips

Disassembly of section .text:
00000000 <foo> 04100000  0x4100000
...
$

This is because the `bltzal' entry has been marked as pre-R6 only in the
opcode table and there is no other opcode pattern to match.

Additionally the changes referred made NAL replace the equivalent
`bltzal $0, . + 4' instruction in disassembly, unless the `no-aliases'
machine option has been used, in legacy code.  Seeing NAL, especially in
its updated form lacking the branch target argument, in the disassembly
of such code may be confusing to people.  This is because unlike with
EHB only used in R2 and newer code -- the machine encoding of which we
anyway always disassemble to its corresponding current architecture's
mnemonic rather than its legacy meaning of `sll $0, $0, 3' -- BLTZAL has
been indeed used in legacy code.  Even though `bltzal $0, . + 8' and its
machine code encoding (0x04100001) -- which is not equivalent to NAL and
still disassembles as BLTZAL -- has been the predominant form as opposed
to NAL's `bltzal $0, . + 4' (0x04100000), it makes sense to always keep
the old form in disassembly, while still accepting `nal' in assembly.

Remove the alias marking then from the the `nal' instruction pattern,
making it always match for R6 code, even with the `no-aliases' option.
And move the entry beyond the `bltzal' entry, making the latter one take
precedence for legacy binary code, while letting the former still match
any `nal' mnemonic in source code assembled for a legacy target.

Add a suitable test case to the GAS test suite.  While the change
affects the disassembler more than the assembler, so placing the test
case in the binutils test suite might be more appropriate, the intent is
also to verify that `nal' is still accepted by GAS for legacy targets,
plus we have test infrastructure available in the GAS test suite for
automatic multiple ISA level testing, which we lack from the binutils
framework.

opcodes/
* mips-opc.c (mips_builtin_opcodes): Remove the INSN2_ALIAS
annotation from the "nal" entry and reorder it beyond "bltzal".

gas/
* testsuite/gas/mips/nal-1.d: New test.
* testsuite/gas/mips/mipsr6@nal-1.d: New test.
* testsuite/gas/mips/nal-2.d: New test.
* testsuite/gas/mips/mipsr6@nal-2.d: New test.
* testsuite/gas/mips/nal.s: New test source.
* testsuite/gas/mips/mips.exp: Run the new tests.

8 years agoMIPS/GAS: Remove extraneous `install_insn' call from `append_insn' (CL)
Maciej W. Rozycki [Wed, 13 Jul 2016 16:31:17 +0000 (17:31 +0100)]
MIPS/GAS: Remove extraneous `install_insn' call from `append_insn' (CL)

Add missing ChangeLog entry for commit b8bca85b334b ("MIPS/GAS: Remove
extraneous `install_insn' call from `append_insn'").

8 years agoopcodes,gas: support for the ldtxa SPARC instructions.
Jose E. Marchesi [Wed, 13 Jul 2016 08:42:28 +0000 (01:42 -0700)]
opcodes,gas: support for the ldtxa SPARC instructions.

This patch adds support for the LDTXA instructions, along with the
corresponding ASIs.  Tests for GAS are included.

opcodes/ChangeLog:

2016-07-12  Jose E. Marchesi  <jose.marchesi@oracle.com>

* sparc-opc.c (ldtxa): New macro.
(sparc_opcodes): Use the macro defined above to add entries for
the LDTXA instructions.
(asi_table): Add the ASI_TWINX_* asis used in the LDTXA
instruction.

gas/ChangeLog:

2016-07-12  Jose E. Marchesi  <jose.marchesi@oracle.com>

* testsuite/gas/sparc/ldtxa.s: New file.
* testsuite/gas/sparc/ldtxa.d: Likewise.
* testsuite/gas/sparc/sparc.exp: Execute the ldtxa test.

8 years ago[ppc64] Fix for function descriptors
Jan Kratochvil [Wed, 13 Jul 2016 11:58:19 +0000 (13:58 +0200)]
[ppc64] Fix for function descriptors

Marin Cermak has found various testcases (or one of them) of GDB FAIL on
ppc64.

https://sourceware.org/bugzilla/show_bug.cgi?id=20328

.o contained only the function descriptor address.

The DWARF as produced by Tcl Dwarf::assemble:
 <1><27>: Abbrev Number: 4 (DW_TAG_subprogram)
    <28>   DW_AT_name        : main
    <2d>   DW_AT_external    : 1
    <2e>   DW_AT_low_pc      : 0x1001ff98
    <36>   DW_AT_high_pc     : 0x1002ff98
 <2><3e>: Abbrev Number: 5 (DW_TAG_lexical_block)

Runtime info:
$2 = {<text variable, no debug info>} 0x10000674 <.main>
$3 = {void ()} 0x1001ff98 <main>

On Tue, 12 Jul 2016 15:22:49 +0200, Ulrich Weigand wrote:
Well, most of the gdb.dwarf2 test cases simply use explicitly placed labels
for the DW_AT_low_pc / DW_AT_high_pc attributes.

See e.g. dw2-unresolved-main.c:

asm (".globl cu_text_start");
asm ("cu_text_start:");

On Wed, 13 Jul 2016 10:54:00 +0200, Jan Kratochvil wrote:
Now I see I should not do that because:

lib/dwarf.exp:
proc function_range { func src } {

So I am providing this patch.

gdb/testsuite/ChangeLog
2016-07-13  Jan Kratochvil  <jan.kratochvil@redhat.com>

* gdb.dwarf2/atomic-type.exp: Use function_range for low_pc and high_pc.
* gdb.dwarf2/atomic.c (f): Rename f_end_lbl to f_label.
* gdb.dwarf2/dw2-bad-mips-linkage-name.c (f): Rename f_end_lbl to
f_label.
(g): Rename g_end_lbl to g_label.
* gdb.dwarf2/dw2-bad-mips-linkage-name.exp: Use function_range for
low_pc and high_pc.
* gdb.dwarf2/dw2-lexical-block-bare.exp: Likewise.

8 years agoAutomatic date update in version.in
GDB Administrator [Wed, 13 Jul 2016 00:00:19 +0000 (00:00 +0000)]
Automatic date update in version.in

8 years agoAlign x86-64 .got/.got.plt sections to 8 bytes
H.J. Lu [Tue, 12 Jul 2016 22:33:47 +0000 (15:33 -0700)]
Align x86-64 .got/.got.plt sections to 8 bytes

Align x86-64 .got and .got.plt sections to their entry size.

* elf64-x86-64.c (elf_x86_64_create_dynamic_sections): Align
.got/.got.plt sections to 8 bytes.

8 years agoPR python/19293 - invalidate frame cache when unwinders change
Tom Tromey [Thu, 9 Jun 2016 21:20:09 +0000 (15:20 -0600)]
PR python/19293 - invalidate frame cache when unwinders change

PR python/19293 notes that when a Python unwinder is disabled, the
frame cache is not invalidated.  This means that disabling an unwinder
doesn't have any immediate effect -- but in my experience it's often
the case that I want to enable or disable an unwinder in order to see
what happens.

This patch adds a new gdb.invalidate_cached_frames function and
arranges for the relevant bits of library code to call it.  I've only
partially documented this function, considering a warning sufficient
without going into all the reasons ordinary code should not call it.
The name of the new function was taken from a comment in frame.h next
to reinit_frame_cache.

No new test as I think the updates to the existing test are sufficient
to show that the code is working as intended.

Built and regtested on x86-64 Fedora 23.

2016-07-12  Tom Tromey  <tom@tromey.com>

PR python/19293:
* python/lib/gdb/command/unwinders.py (do_enable_unwinder): Call
gdb.invalidate_cached_frames.
* python/lib/gdb/unwinder.py (register_unwinder): Call
gdb.invalidate_cached_frames.
* python/python.c (gdbpy_invalidate_cached_frames): New function.
(python_GdbMethods): Add entry for invalidate_cached_frames.

2016-07-12  Tom Tromey  <tom@tromey.com>

PR python/19293:
* python.texi (Frames In Python): Document
gdb.invalidate_cached_frames.

2016-07-12  Tom Tromey  <tom@tromey.com>

PR python/19293:
* gdb.python/py-unwind-maint.exp: Update tests.

8 years agoSecond fix for grammar in error message.
Nick Clifton [Tue, 12 Jul 2016 14:46:02 +0000 (15:46 +0100)]
Second fix for grammar in error message.

* binary.c (binary_set_section_contents): Second grammar fix.

8 years agoMatch the selftest output when captured_main is inlined
Yao Qi [Tue, 12 Jul 2016 14:39:34 +0000 (15:39 +0100)]
Match the selftest output when captured_main is inlined

In gdb.gdb/observer.exp, I see the following fail,

(gdb) break captured_main^M
Breakpoint 1 at 0x57e409: file ../../binutils-gdb/gdb/main.c, line 492.^M
(gdb) PASS: gdb.gdb/observer.exp: breakpoint in captured_main
run -nw -nx -data-directory /home/yao.qi/SourceCode/gnu/build/gdb/testsuite/../data-directory^M
Starting program: /home/yao.qi/SourceCode/gnu/build/gdb/testsuite/outputs/gdb.gdb/observer/xgdb -nw -nx -data-directory /home/yao.qi/SourceCode/gnu/build/gdb/testsuite/../data-directory^M
[Thread debugging using libthread_db enabled]^M
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".^M
^M
Breakpoint 1, gdb_main (args=args@entry=0x7fffffffdca0) at ../../binutils-gdb/gdb/main.c:1157^M
1157          captured_main (args);^M
(gdb) FAIL: gdb.gdb/observer.exp: run until breakpoint at captured_main

looks the test sets breakpoint on captured_main, and expects program
stops at captured_main.  However, program stops at the place where
captured_main is called, because captured_main is inlined,

 <1><8519e3>: Abbrev Number: 58 (DW_TAG_subprogram)
    <8519e4>   DW_AT_name        : (indirect string, offset: 0x880d3): captured_main
    <8519e8>   DW_AT_decl_file   : 1
    <8519e9>   DW_AT_decl_line   : 444
    <8519eb>   DW_AT_type        : <0x846e48>
    <8519ef>   DW_AT_inline      : 1    (inlined)
    <8519f0>   DW_AT_sibling     : <0x851c01>

The test passes if I build GDB with '-O0 -g3', because captured_main
isn't inlined.  This patch is to match the output when captured_main
is inlined.

gdb/testsuite:

2016-07-12  Yao Qi  <yao.qi@linaro.org>

* lib/selftest-support.exp (selftest_setup): Match the output
when captured_main is inlined.

8 years agoAdd type casts to allow C++ compile.
Chung-Lin Tang [Tue, 12 Jul 2016 13:02:14 +0000 (06:02 -0700)]
Add type casts to allow C++ compile.

gdb/gdbserver/
* linux-nios2-low.c (nios2_fill_gregset): Add type cast
to buf parameter.
(nios2_store_gregset): Likewise.

8 years agoFix grammar in error message.
Douglas B Rupp [Tue, 12 Jul 2016 10:05:13 +0000 (11:05 +0100)]
Fix grammar in error message.

* binary.c (binary_set_section_contents): Fix grammar in warning
message.

8 years agoAutomatic date update in version.in
GDB Administrator [Tue, 12 Jul 2016 00:00:19 +0000 (00:00 +0000)]
Automatic date update in version.in

8 years ago[ARC] Update test.
Claudiu Zissulescu [Mon, 11 Jul 2016 13:41:23 +0000 (15:41 +0200)]
[ARC] Update test.

ld/
2016-07-11  Claudiu Zissulescu  <claziss@synopsys.com>

* testsuite/ld-arc/nps-1b.err: Update test to handle more
verbosity.

8 years agoTLS: DTPOFF can accept offsets, stored into addendum. Remove the need of base
Claudiu Zissulescu [Thu, 30 Jun 2016 13:11:57 +0000 (15:11 +0200)]
TLS: DTPOFF can accept offsets, stored into addendum. Remove the need of base

gas/ChangeLog:

2016-07-05  Claudiu Zissulescu  <claziss@synopsys.com>

  * config/tc-arc.c (arc_reloc_op_tag): Allow complex ops for dtpoff.
  (tc_gen_reloc): Remove passing DTPOFF base info into reloc addendum as it is
  no longer needed.

Signed-off-by: Claudiu Zissulescu <claziss@synopsys.com>
8 years agoEnable relocation overflow messages by default.
Cupertino Miranda [Thu, 23 Jun 2016 09:38:30 +0000 (11:38 +0200)]
Enable relocation overflow messages by default.

bfd/ChangeLog:

2016-06-23  Cupertino Miranda  <cmiranda@synopsys.com>
        elf32-arc.c: made PR_DEBUG always defined.

Signed-off-by: Claudiu Zissulescu <claziss@synopsys.com>
8 years agoFixes done to TLS.
Cupertino Miranda [Tue, 14 Jun 2016 20:55:44 +0000 (22:55 +0200)]
Fixes done to TLS.

TLS relocations did not support multiple TLS modes for the same
symbol in a single object file.
Refactored how GOT and TLS is implemented. Removed code duplications between
local and global symbols conditioning.

bfd/ChangeLog:

2016-06-14  Cupertino Miranda  <cmiranda@synopsys.com>
  * arc-got.h: Moved got related structures from elf32-arc.c to
    this file. More precisely, tls_type_e, tls_got_entries, got_entry.
  * (arc_get_local_got_ents,
     got_entry_for_type,
     new_got_entry_to_list,
     tls_type_for_reloc,
     symbol_has_entry_of_type,
     get_got_entry_list_for_symbol,
     arc_got_entry_type_for_reloc,
     ADD_SYMBOL_REF_SEC_AND_RELOC,
     arc_fill_got_info_for_reloc,
     relocate_fix_got_relocs_for_got_info,
     create_got_dynrelocs_for_single_entry,
     create_got_dynrelocs_for_got_info): Added to file.
  * elf32-arc.c: Removed GOT & TLS related structs and functions to
                     arc-got.h.

Signed-off-by: Claudiu Zissulescu <claziss@synopsys.com>
8 years agoAutomatic date update in version.in
GDB Administrator [Mon, 11 Jul 2016 00:00:19 +0000 (00:00 +0000)]
Automatic date update in version.in

8 years agoAutomatic date update in version.in
GDB Administrator [Sun, 10 Jul 2016 00:00:20 +0000 (00:00 +0000)]
Automatic date update in version.in

8 years agoPR20337, Objdump makes poor choice of symbols
Alan Modra [Sat, 9 Jul 2016 04:55:31 +0000 (14:25 +0930)]
PR20337, Objdump makes poor choice of symbols

binutils/
PR binutils/20337
* objdump.c (compare_symbols): For ELF, sort same value/type
symbols according to size.
ld/
* testsuite/ld-powerpc/elfv2exe.d: Update.

8 years agoAutomatic date update in version.in
GDB Administrator [Sat, 9 Jul 2016 00:00:21 +0000 (00:00 +0000)]
Automatic date update in version.in

8 years agoFT32: Correct 32-bit reloc for BFD_RELOC_32
jamesbowman [Fri, 8 Jul 2016 18:53:31 +0000 (11:53 -0700)]
FT32: Correct 32-bit reloc for BFD_RELOC_32

The reloc for BFD_RELOC_32 was using the the 20-bit. This hack causes
problems in gdb.  Fixed it to be the proper 32-bit reloc, R_FT32_32.

bfd/ChangeLog:

* elf32-ft32.c (ft32_reloc_map): Use R_FT32_32 for BFD_RELOC_32.

8 years agoFT32: adjust disassembly opcode match fields
jamesbowman [Fri, 8 Jul 2016 18:38:35 +0000 (11:38 -0700)]
FT32: adjust disassembly opcode match fields

Tighten up the opcode match fields for conditional jump and call
instructions so more general opcodes don't match them in disassembly.

opcodes/ChangeLog:

* opcodes/ft32-opc.c (ft32_opc_info): Correct mask for "callc"
and "jmpc".

8 years agoMIPS/GAS: Remove extraneous `install_insn' call from `append_insn'
Maciej W. Rozycki [Fri, 8 Jul 2016 13:37:46 +0000 (14:37 +0100)]
MIPS/GAS: Remove extraneous `install_insn' call from `append_insn'

Complement:

commit 1e91584932efd70020c8c98037d0cb93a0552a20
Author: Richard Sandiford <rdsandiford@googlemail.com>
Date:   Wed Mar 9 09:17:02 2005 +0000

<https://sourceware.org/ml/binutils/2005-03/msg00217.html>, ("Rework
MIPS nop-insertion code, add -mfix-vr4130 [5/11]"), and remove a call to
`install_insn' from `append_insn', which as from that change has become
redundant.  This is because such a call, to place an instruction's bit
pattern in output, is already made from `move_insn', called from
`add_relaxed_insn' or `add_fixed_insn' as appropriate, either of which
now always is and has to be made from `append_insn' before the repeated
call to `install_insn' is made.  Previously the place where this second
invocation is made was the only one where the output stream was updated,
although the update was made inline rather than with a function call.

Remove the repeated call then, to reclaim some performance.

gas/
* config/tc-mips.c (append_insn): Remove extraneous
`install_insn' call.

8 years agoAutomatic date update in version.in
GDB Administrator [Fri, 8 Jul 2016 00:00:20 +0000 (00:00 +0000)]
Automatic date update in version.in

8 years ago[obv] Fix broken build on Fedora 23.
Walfred Tedeschi [Thu, 7 Jul 2016 17:07:36 +0000 (19:07 +0200)]
[obv] Fix broken build on Fedora 23.

Compiler complains about possible utilization of "symbol" which is member
of lang_def.
Initialization was added.

2016-07-07  Walfred Tedeschi  <walfred.tedeschi@intel.com>

gdb/ChangeLog:

* cp-namespace.c (cp_lookup_bare_symbol): Initialize
lang_this.symbol.

8 years agoFix of default lookup for "this" symbol.
Walfred Tedeschi [Thu, 7 Jul 2016 15:33:05 +0000 (17:33 +0200)]
Fix of default lookup for "this" symbol.

Using the default lookup for the symbol "this" might lead to segmentation
fault in GDB.
Some languages, e.g. Fortran, use as default lookup routine the C++
routines.
For those languages "this" can be the instance of a class or even the
definition of a class.
When an instance of a class having the name "this" is evaluated
in GDB a segmentation fault was observed.

As example of the issue take into consideration the Fortran code:
  type foo
    real :: a
    type(bar) :: x
    character*7 :: b
  end type foo
  type(foo) :: this

Issue appears when evaluating the variable "this" in GDB.

Within the language definition structure there is a field that represents
the name of the special symbol used for the C++ "this" for the language
being described.
The fix presented here takes into account the aforementioned field. In the
case the aforementioned field is NULL "this" is not represented in the
language described and the lookup should return a null_block_symbol.

Tests: Performed tests with gfortran and ifort.

Reviewed:
https://sourceware.org/ml/gdb-patches/2016-04/msg00068.html

After the commited patch:
https://sourceware.org/ml/gdb-patches/2016-06/msg00364.html
Patch can be applied.

2016-06-16  Walfred Tedeschi  <walfred.tedeschi@intel.com>

gdb/ChangeLog:

* cp-namespace.c (cp_lookup_bare_symbol): Use language passed as
parameter to look for the symbol "this".

gdb/testsuite/ChangeLog:

* gdb.fortran/derived-types.exp (result_line, result_line_2):
New variables.
(print this%a, print this%b, print this): New tests.
* gdb.fortran/derived-types.f90 (this): New object and
initialization.

8 years agoFT32 linker script cleanup
jamesbowman [Thu, 7 Jul 2016 01:55:25 +0000 (18:55 -0700)]
FT32 linker script cleanup

Fix a typo (__PMSIZE was written as __PMSIZE_) and add section alignment
for DATA and BSS.

ld/ChangeLog:

  * scripttempl/ft32.sc (__PMSIZE): Correct __PMSIZE_.
    (DATA): add ALIGN.
    (BSS): add ALIGN

8 years agoAutomatic date update in version.in
GDB Administrator [Thu, 7 Jul 2016 00:00:21 +0000 (00:00 +0000)]
Automatic date update in version.in

8 years agogdb.ada/arraydim.exp: Fix directory layout
Simon Marchi [Wed, 6 Jul 2016 14:18:10 +0000 (10:18 -0400)]
gdb.ada/arraydim.exp: Fix directory layout

I forgot to fix this one in the previous commit.

gdb/testsuite/ChangeLog:

* gdb.ada/arraydim.exp: Remove extra directory level in build
directory.

8 years agoRemove extra output directory level for Ada tests
Simon Marchi [Wed, 6 Jul 2016 14:02:48 +0000 (10:02 -0400)]
Remove extra output directory level for Ada tests

The output of Ada tests create a layout where the test name
("formatted_ref" in this example) appears twice:

outputs
└── gdb.ada
    â””── formatted_ref
        â””── formatted_ref
            â”œâ”€â”€ b~formatted_ref.adb
            â”œâ”€â”€ b~formatted_ref.ads
            â”œâ”€â”€ b~formatted_ref.ali
            â”œâ”€â”€ b~formatted_ref.o
            â”œâ”€â”€ defs.ali
            â”œâ”€â”€ defs.o
            â”œâ”€â”€ formatted_ref
            â”œâ”€â”€ formatted_ref.ali
            â””── formatted_ref.o

This causes a problem when testing with the native-gdbserver board, when
the binary has the same name as the test.  When gdb_remote_download is
called to upload the compiled binary, the implementation for
native-gdbserver copies it in the standard output directory (in
outputs/gdb.ada/formatted_ref).  However, there is already a directory
named formatted_ref in there, so the copy fails and gdbserver isn't able
to load the binary.

This patch bypasses the problem by removing the extra directory level.
The compiled binary will already be in its final location in the
standard output directory, so the copy will effectively be a no-op.

gdb/testsuite/ChangeLog:

* lib/ada.exp: Remove extra directory level in build directory.
* gdb.ada/cond_lang.exp: Likewise.
* gdb.ada/exec_changed.exp: Likewise.
* gdb.ada/lang_switch.exp: Likewise.

8 years agoRemove extraneous parentheses.
John Baldwin [Mon, 20 Jun 2016 23:16:31 +0000 (16:16 -0700)]
Remove extraneous parentheses.

gdb/ChangeLog:

* h8300-tdep.c (h8300_print_register): Remove extraneous parentheses.

8 years agoUse unsigned integer constant with left shifts.
John Baldwin [Sat, 11 Jun 2016 20:18:15 +0000 (13:18 -0700)]
Use unsigned integer constant with left shifts.

This avoids undefined behavior.

gdb/ChangeLog:

* ada-lang.c (ada_unpack_from_contents): Use unsigned constants with
left shifts.

8 years agoSet uses_fp for frames with a valid FP register explicitly.
John Baldwin [Sat, 11 Jun 2016 14:43:46 +0000 (07:43 -0700)]
Set uses_fp for frames with a valid FP register explicitly.

Since CORE_ADDR is unsigned, the saved FP register is always greater than
or equal to zero.  Replace the comparison by explicitly setting uses_fp to
1 for frames with a valid FP register.

gdb/ChangeLog:

* sh64-tdep.c (sh64_analyze_prologue): Set "uses_fp" when setting
the MEDIA_FP_REGNUM register.

8 years agoRemove check for negative size.
John Baldwin [Sat, 11 Jun 2016 14:38:42 +0000 (07:38 -0700)]
Remove check for negative size.

Since CORE_ADDR is unsigned, this value can never be negative.

gdb/ChangeLog:

* score-tdep.c (score7_malloc_and_get_memblock): Remove check for
negative size.

8 years agoUse 'ptid_t' instead of 'ptid' for fbsd_next_vfork_done's return type.
John Baldwin [Fri, 1 Jul 2016 17:18:50 +0000 (10:18 -0700)]
Use 'ptid_t' instead of 'ptid' for fbsd_next_vfork_done's return type.

'ptid' compiles in C++, but not C.

gdb/ChangeLog:
* fbsd-nat.c (fbsd_is_vfork_done_pending): Fix return type.

8 years ago[ARM] Fix endless recursion on calculating CPRC candidate
Yao Qi [Tue, 5 Jul 2016 14:29:20 +0000 (15:29 +0100)]
[ARM] Fix endless recursion on calculating CPRC candidate

When GDB determines whether type T can be part of candidate for
passing and returning in VFP registers, it calls
arm_vfp_cprc_sub_candidate recursively.  However, if type T has
self-reference field, like,

class C
{
  static C s;
};

arm_vfp_cprc_sub_candidate won't return.  This fix is to skip calling
arm_vfp_cprc_sub_candidate if the field is static.

gdb:

2016-07-06  Yao Qi  <yao.qi@linaro.org>

* arm-tdep.c (arm_vfp_cprc_sub_candidate): Don't call
arm_vfp_cprc_sub_candidate for static field.

8 years agoAllow subscripting raw pointers
Manish Goregaokar [Wed, 6 Jul 2016 05:25:10 +0000 (10:55 +0530)]
Allow subscripting raw pointers

This will be useful for dealing with vectors; regardless of our final solution
for the Index trait.

2016-07-06  Manish Goregaokar  <manish@mozilla.com>

gdb/ChangeLog:
    * rust-lang.c (rust_subscript): Allow subscripting pointers

gdb/testsuite/ChangeLog:
    * simple.rs: Add test for raw pointer subscripting
    * simple.exp: Add test expectations

8 years agoAutomatic date update in version.in
GDB Administrator [Wed, 6 Jul 2016 00:00:20 +0000 (00:00 +0000)]
Automatic date update in version.in

8 years agoAdd -flto to PR ld/20321 test
H.J. Lu [Tue, 5 Jul 2016 14:35:52 +0000 (07:35 -0700)]
Add -flto to PR ld/20321 test

Before GCC 4.9, -flto is required for final LTO link.  Add -flto to PR
ld/20321 test to support older versions of GCC.

* testsuite/ld-plugin/lto.exp: Add -flto to PR ld/20321 test.

8 years agoFix fail in gdb.mi/mi-reverse.exp
Yao Qi [Tue, 5 Jul 2016 13:46:21 +0000 (14:46 +0100)]
Fix fail in gdb.mi/mi-reverse.exp

Commit 38b022b4452f996fb5a8598f80d850b594621bcf adds "method" and
"format" fields in =record-started, but doesn't update test case
gdb.mi/mi-reverse.exp, so it causes the fail like this,

PASS: gdb.mi/mi-reverse.exp: mi runto main
Expecting: ^(-interpreter-exec console record[^M
]+)?(=record-started,thread-group="i1"^M
\^done[^M
]+[(]gdb[)] ^M
[ ]*)
-interpreter-exec console record^M
=record-started,thread-group="i1",method="full"^M
^done^M
(gdb) ^M
FAIL: gdb.mi/mi-reverse.exp: Turn on process record

and regression was found by buildbot too
https://sourceware.org/ml/gdb-testers/2016-q2/msg04492.html

gdb/testsuite:

2016-07-05  Yao Qi  <yao.qi@linaro.org>

* gdb.mi/mi-reverse.exp: Match =record-started output.

8 years ago[ARM] Purecode compatible long branch veneer for M-profile targets with MOVW.
Andre Vieria [Tue, 5 Jul 2016 10:39:06 +0000 (11:39 +0100)]
[ARM] Purecode compatible long branch veneer for M-profile targets with MOVW.

2016-07-05  Andre Vieria  <andre.simoesdiasvieira@arm.com>

* elf32-arm.c (THUMB32_MOVT): New veneer macro.
(THUMB32_MOVW): Likewise.
(elf32_arm_stub_long_branch_thumb2_only_pure): New.
(DEF_STUBS): Define long_branch_thumb2_only_pure.
(arm_stub_is_thumb): Add new veneer stub.
(arm_type_of_stub): Use new veneer.
(arm_stub_required_alignment): Add new veneer.

2016-07-05  Andre Vieria  <andre.simoesdiasvieira@arm.com>

* testsuite/ld-arm/farcall-thumb2-purecode.d: New test result.
* testsuite/ld-arm/farcall-thumb2-purecode.s: New test.
* testsuite/ld-arm/arm-elf.exp: Run it.

8 years ago[ARM] Change noread to purecode.
Andre Vieria [Tue, 5 Jul 2016 10:28:46 +0000 (11:28 +0100)]
[ARM] Change noread to purecode.

bfd/ChangeLog
2016-07-05  Andre Vieria  <andre.simoesdiasvieira@arm.com>

        * bfd-in2.h (SEC_ELF_NOREAD): Rename to ...
          (SEC_ELF_PURECODE): ... this.
        * elf32-arm.c (elf32_arm_post_process_headers): Rename SEC_ELF_NOREAD
          to SEC_ELF_NOREAD.
          (elf32_arm_fake_sections): Likewise.
          (elf_32_arm_section_flags): Likewise.
          (elf_32_arm_lookup_section_flags): Likewise.
        * section.c (SEC_ELF_NOREAD): Rename to ...
          (SEC_ELF_PURECODE): ... this.

binutils/ChangeLog
2016-07-05  Andre Vieria  <andre.simoesdiasvieira@arm.com>

        * objdump.c (dump_section_header): Rename SEC_ELF_NOREAD
          to SEC_ELF_NOREAD.
        * readelf.c (get_elf_section_flags): Rename ARM_NOREAD to
          ARM_PURECODE and SHF_ARM_NOREAD to SHF_ARM_PURECODE.
          (process_section_headers): Rename noread to purecode.

        * section.c (SEC_ELF_NOREAD): Rename to ...
          (SEC_ELF_PURECODE): ... this.

include/ChangeLog
2016-07-05  Andre Vieria  <andre.simoesdiasvieira@arm.com>

        * elf/arm.h (SHF_ARM_NOREAD): Rename to ...
          (SHF_ARM_PURECODE): ... this.

ld/ChangeLog
2016-07-05  Andre Vieria  <andre.simoesdiasvieira@arm.com>

        * testsuite/ld-arm/arm_noread.ld: Renamed to ...
          testsuite/ld-arm/arm_purecode.ld: ... this, and replaced
          all noread's by purecode.

8 years agold: track linker-definedness of symbols
Jan Beulich [Tue, 5 Jul 2016 09:36:08 +0000 (11:36 +0200)]
ld: track linker-definedness of symbols

Keep "lineno" as zero while not processing any script, and use it being
zero to set the "linker_def" field to true.

8 years agox86: fix register check in check_qword_reg()
Jan Beulich [Tue, 5 Jul 2016 09:14:51 +0000 (11:14 +0200)]
x86: fix register check in check_qword_reg()

A missing 'r' (or wrong 'e') register prefix needs to be complained
about if the template allows for a 64-bit register, not a 32-bit one.
I assume this was a copy-and-paste type of mistake
(from check_long_reg()).

8 years agobabeltrace compilation regression
Jan Kratochvil [Tue, 5 Jul 2016 08:47:18 +0000 (10:47 +0200)]
babeltrace compilation regression

Since:
commit 2d681be471cf8aff8f296cb7713c39e9aa4fc2bb
Author: Andreas Arnez <arnez@linux.vnet.ibm.com>
Date:   Wed Apr 27 15:52:16 2016 +0200
    Avoid non-C++-enabled babeltrace versions
tested with:
libbabeltrace-devel-1.2.4-4.fc24.x86_64
libbabeltrace-devel-1.4.0-2.fc25.x86_64
it can no longer build due to:
configure:16435: gcc -o conftest -m64 -g3 -pipe -Wall -fexceptions -fstack-protector-strong --param=ssp-buffer-size=4 -fno-diagno
stics-show-caret  -Werror  -static-libstdc++ -static-libgcc  conftest.c -ldl -ldl -lncurses -lm -ldl  -lbabeltrace -lbabeltrace-ctf >&5
conftest.c: In function 'main':
conftest.c:208:7: error: 'pos' is a pointer; did you mean to use '->'?

gdb/ChangeLog
2016-07-05  Jan Kratochvil  <jan.kratochvil@redhat.com>

* configure: Regenerate.
* configure.ac (HAVE_LIBBABELTRACE): Fix pos variable dereference.

8 years agoAutomatic date update in version.in
GDB Administrator [Tue, 5 Jul 2016 00:00:21 +0000 (00:00 +0000)]
Automatic date update in version.in

8 years agoWarn and return for duplicated plugin
H.J. Lu [Mon, 4 Jul 2016 15:55:04 +0000 (08:55 -0700)]
Warn and return for duplicated plugin

If a plugin has been loaded already, we should warn and return, instead
of adding it on the plugin list.

PR ld/20321
* plugin.c (plugin_opt_plugin): Warn and return if plugin has
been loaded already.
* testsuite/ld-plugin/lto.exp: Run PR ld/20321 test.
* testsuite/ld-plugin/pr20321.c: New file.

8 years agoAllow the flash and ram memory region sizes to be specified in the default FT32 linke...
Nick Clifton [Mon, 4 Jul 2016 14:44:10 +0000 (15:44 +0100)]
Allow the flash and ram memory region sizes to be specified in the default FT32 linker script.

* scripttempl/ft32.sc (__PMSIZE_): If not defined, set to 256K.
(__RAMSIZE): If not defined, set to 64K.
(MEMORY): Set the flash region size to __PMSIZE and the ram region
size to __RAMSIZE.

8 years agoAutomatic date update in version.in
GDB Administrator [Mon, 4 Jul 2016 00:00:15 +0000 (00:00 +0000)]
Automatic date update in version.in

8 years agoAutomatic date update in version.in
GDB Administrator [Sun, 3 Jul 2016 00:00:21 +0000 (00:00 +0000)]
Automatic date update in version.in

8 years agoMIPS/GAS/testsuite: Remove remnants of a.out/ECOFF support
Maciej W. Rozycki [Sat, 2 Jul 2016 22:39:18 +0000 (23:39 +0100)]
MIPS/GAS/testsuite: Remove remnants of a.out/ECOFF support

Complement:

commit 16e5e222b6eae6f110ea72bf627585c095a453a8
Author: Richard Sandiford <rdsandiford@googlemail.com>
Date:   Sat Jun 22 16:57:42 2013 +0000

<https://sourceware.org/ml/binutils/2013-06/msg00195.html>, ("Make
gas/mips/mips.exp ELF-only"), and remove the remaining stale ECOFF test
dumps and pieces of a.out/ECOFF support in relocation match patterns.

gas/
* testsuite/gas/mips/ecoff@ld.d: Remove test.
* testsuite/gas/mips/ecoff@ld-forward.d: Remove test.
* testsuite/gas/mips/ecoff@ld-zero-3.d: Remove test.
* testsuite/gas/mips/ecoff@sd.d: Remove test.
* testsuite/gas/mips/ecoff@sd-forward.d: Remove test.
* testsuite/gas/mips/beq.d: Remove a.out and ECOFF support from
reloc patterns.
* testsuite/gas/mips/mipsr6@beq.d: Likewise.
* testsuite/gas/mips/bge.d: Likewise.
* testsuite/gas/mips/mipsr6@bge.d: Likewise.
* testsuite/gas/mips/bgeu.d: Likewise.
* testsuite/gas/mips/mipsr6@bgeu.d: Likewise.
* testsuite/gas/mips/blt.d: Likewise.
* testsuite/gas/mips/mipsr6@blt.d: Likewise.
* testsuite/gas/mips/bltu.d: Likewise.
* testsuite/gas/mips/mipsr6@bltu.d: Likewise.
* testsuite/gas/mips/branch-likely.d: Likewise.
* testsuite/gas/mips/la.d: Likewise.
* testsuite/gas/mips/lb.d: Likewise.
* testsuite/gas/mips/lifloat.d: Likewise.
* testsuite/gas/mips/sb.d: Likewise.
* testsuite/gas/mips/uld.d: Likewise.
* testsuite/gas/mips/ulh.d: Likewise.
* testsuite/gas/mips/ulw.d: Likewise.
* testsuite/gas/mips/usd.d: Likewise.
* testsuite/gas/mips/ush.d: Likewise.
* testsuite/gas/mips/usw.d: Likewise.

8 years agoMIPS/LD/testsuite: Resurrect `branch-misc-2' test
Maciej W. Rozycki [Sat, 2 Jul 2016 22:14:20 +0000 (23:14 +0100)]
MIPS/LD/testsuite: Resurrect `branch-misc-2' test

Revert:

commit c9c1e416d7dd1a35bd7c1a96d034dca1d5071cd1
Author: Alexandre Oliva <aoliva@redhat.com>
Date:   Thu Dec 12 04:39:44 2002 +0000

<https://sourceware.org/ml/binutils/2002-11/msg00657.html>, ("mips:
branches to external labels are broken"), complementing:

commit bad36eacdad37042c4efb1c5fbf48476b47de82b
Author: Daniel Jacobowitz <drow@false.org>
Date:   Wed Nov 23 14:04:18 2005 +0000

<https://sourceware.org/ml/binutils/2005-11/msg00324.html>,
("R_MIPS_PC16, again").

ld/
* testsuite/ld-mips-elf/branch-misc-2.d: New test.
* testsuite/ld-mips-elf/mips-elf.exp: Run it.

8 years agoMIPS/GAS/testsuite: Split `branch-misc-2' tests into two
Maciej W. Rozycki [Sat, 2 Jul 2016 22:09:06 +0000 (23:09 +0100)]
MIPS/GAS/testsuite: Split `branch-misc-2' tests into two

Move `branch-misc-2' tests for non locally-defined-global symbols into
separate files.  These tests have been introduced with:

commit 6f171daac941741e5fa904f6e462adb75a595495
Author: Alexandre Oliva <aoliva@redhat.com>
Date:   Thu Dec 12 04:40:22 2002 +0000

<https://sourceware.org/ml/binutils/2002-11/msg00631.html>, ("mips:
branches to external labels are broken"), and:

commit d17b874b6c14caa2f2ed1b5544a48de9f39a1a65
Author: Alexandre Oliva <aoliva@redhat.com>
Date:   Wed Mar 12 23:07:22 2003 +0000

<https://sourceware.org/ml/binutils/2003-03/msg00136.html>, ("On
resolving the MIPS gas branch reloc issue"), while the test case served
a different purpose.  With the original intent of the test case brought
back with:

commit bad36eacdad37042c4efb1c5fbf48476b47de82b
Author: Daniel Jacobowitz <drow@false.org>
Date:   Wed Nov 23 14:04:18 2005 +0000

<https://sourceware.org/ml/binutils/2005-11/msg00324.html>,
("R_MIPS_PC16, again"), these stand in the way for linker testing.

gas/
* testsuite/gas/mips/branch-misc-2.s: Move non
locally-defined-global symbol tests...
* testsuite/gas/mips/branch-misc-5.s: ... to this new test.
* testsuite/gas/mips/branch-misc-2.d: Update accordingly.
* testsuite/gas/mips/branch-misc-2-64.d: Likewise.
* testsuite/gas/mips/branch-misc-2pic.d: Likewise.
* testsuite/gas/mips/branch-misc-2pic-64.d: Likewise.
* testsuite/gas/mips/mipsr6@branch-misc-2-64.d: Likewise.
* testsuite/gas/mips/mipsr6@branch-misc-2pic-64.d: Likewise.
* testsuite/gas/mips/micromips@branch-misc-2.d: Likewise.
* testsuite/gas/mips/micromips@branch-misc-2-64.d: Likewise.
* testsuite/gas/mips/micromips@branch-misc-2pic.d: Likewise.
* testsuite/gas/mips/micromips@branch-misc-2pic-64.d: Likewise.
* testsuite/gas/mips/branch-misc-5.d: New test.
* testsuite/gas/mips/branch-misc-5pic.d: New test.
* testsuite/gas/mips/branch-misc-5-64.d: New test.
* testsuite/gas/mips/branch-misc-5pic-64.d: New test.
* testsuite/gas/mips/mipsr6@branch-misc-5-64.d: New test.
* testsuite/gas/mips/mipsr6@branch-misc-5pic-64.d: New test.
* testsuite/gas/mips/micromips@branch-misc-5.d: New test.
* testsuite/gas/mips/micromips@branch-misc-5pic.d: New test.
* testsuite/gas/mips/micromips@branch-misc-5-64.d: New test.
* testsuite/gas/mips/micromips@branch-misc-5pic-64.d: New test.
* testsuite/gas/mips/mips.exp: Run the new tests.

8 years agoMIPS/GAS/testsuite: Reenable disabled external BEQ tests
Maciej W. Rozycki [Sat, 2 Jul 2016 21:19:15 +0000 (22:19 +0100)]
MIPS/GAS/testsuite: Reenable disabled external BEQ tests

Complement:

commit bad36eacdad37042c4efb1c5fbf48476b47de82b
Author: Daniel Jacobowitz <drow@false.org>
Date:   Wed Nov 23 14:04:18 2005 +0000

<https://sourceware.org/ml/binutils/2005-11/msg00324.html>,
("R_MIPS_PC16, again"), and reenable external BEQ tests, the remaining
subset missed from the set of branch tests previously disabled with:

commit 6f171daac941741e5fa904f6e462adb75a595495
Author: Alexandre Oliva <aoliva@redhat.com>
Date:   Thu Dec 12 04:40:22 2002 +0000

<https://sourceware.org/ml/binutils/2002-11/msg00631.html>, ("mips:
branches to external labels are broken").

gas/
* testsuite/gas/mips/beq.s: Uncomment branches to undefined
symbols.
* testsuite/gas/mips/beq.d: Update accordingly.
* testsuite/gas/mips/mipsr6@beq.d: Likewise.
* testsuite/gas/mips/micromips@beq.d: Likewise.

8 years agoMIPS/GAS/testsuite: Restrict 64-bit `branch-mips' tests to NewABI targets
Maciej W. Rozycki [Sat, 2 Jul 2016 21:14:27 +0000 (22:14 +0100)]
MIPS/GAS/testsuite: Restrict 64-bit `branch-mips' tests to NewABI targets

... removing numerous `mips-sgi-irix5' failures.

gas/
* testsuite/gas/mips/mips.exp: Restrict 64-bit `branch-mips'
tests to NewABI targets.

8 years agoMIPS/GAS/testsuite: Group `branch-misc' tests together
Maciej W. Rozycki [Sat, 2 Jul 2016 21:04:41 +0000 (22:04 +0100)]
MIPS/GAS/testsuite: Group `branch-misc' tests together

gas/
* testsuite/gas/mips/mips.exp: Group `branch-misc' tests
together.

8 years agoAutomatic date update in version.in
GDB Administrator [Sat, 2 Jul 2016 00:00:22 +0000 (00:00 +0000)]
Automatic date update in version.in

8 years agoOptimize memory_xfer_partial for remote
Don Breazeal [Fri, 1 Jul 2016 18:13:48 +0000 (11:13 -0700)]
Optimize memory_xfer_partial for remote

Some analysis we did here showed that increasing the cap on the
transfer size in target.c:memory_xfer_partial could give 20% or more
improvement in remote load across JTAG.  Transfer sizes were capped
to 4K bytes because of performance problems encountered with the
restore command, documented here:

https://sourceware.org/ml/gdb-patches/2013-07/msg00611.html

and in commit 67c059c29e1f ("Improve performance of large restore
commands").

The 4K cap was introduced because in a case where the restore command
requested a 100MB transfer, memory_xfer_partial would repeatedy
allocate and copy an entire 100MB buffer in order to properly handle
breakpoint shadow instructions, even though memory_xfer_partial would
actually only write a small portion of the buffer contents.

A couple of alternative solutions were suggested:
* change the algorithm for handling the breakpoint shadow instructions
* throttle the transfer size up or down based on the previous actual
  transfer size

I tried implementing the throttling approach, and my implementation
reduced the performance in some cases.

This patch implements a new target function that returns that target's
limit on memory transfer size.  It defaults to ULONGEST_MAX bytes,
because for native targets there is no marshaling and thus no limit is
needed.  For remote targets it uses get_memory_write_packet_size.

gdb/ChangeLog:

* remote.c (remote_get_memory_xfer_limit): New function.
* target-delegates.c: Regenerate.
* target.c (memory_xfer_partial): Call
target_ops.to_get_memory_xfer_limit.
* target.h (struct target_ops)
<to_get_memory_xfer_limit>: New member.

8 years ago[AArch64] Fix +nofp16 handling
Szabolcs Nagy [Fri, 1 Jul 2016 15:20:50 +0000 (16:20 +0100)]
[AArch64] Fix +nofp16 handling

Feature flag handling was not perfect, +nofp16 disabled fp
instructions too.

New feature flag macros were added to check features with multiple
bits set (matters for FP_F16 and SIMD_F16 opcode feature tests).
The unused AARCH64_OPCODE_HAS_FEATURE was removed, all checks should
use one of the AARCH64_CPU_HAS_* macros.  AARCH64_CPU_HAS_FEATURE
now checks all feature bits.

The aarch64_features table now contains the dependencies as
a separate field (so when the feature is enabled all dependencies
are enabled and when it is disabled everything that depends on it
is disabled).

Note that armv8-a+foo+nofoo is not equivalent to armv8-a if
+foo turns on dependent features that nofoo does not turn off.

gas/
* config/tc-aarch64.c (struct aarch64_option_cpu_value_table): Add
require field.
(aarch64_features): Initialize require fields.
(aarch64_parse_features): Handle dependencies.
(aarch64_feature_enable_set, aarch64_feature_disable_set): New.
(md_assemble): Use AARCH64_CPU_HAS_ALL_FEATURES.
* testsuite/gas/aarch64/illegal-nofp16.s: New.
* testsuite/gas/aarch64/illegal-nofp16.l: New.
* testsuite/gas/aarch64/illegal-nofp16.d: New.

include/
* opcode/aarch64.h (AARCH64_CPU_HAS_ALL_FEATURES): New.
(AARCH64_CPU_HAS_ANY_FEATURES): New.
(AARCH64_CPU_HAS_FEATURE): Define as AARCH64_CPU_HAS_ALL_FEATURES.
(AARCH64_OPCODE_HAS_FEATURE): Remove.

8 years agoFake VFORK_DONE events when following only the parent after a vfork.
John Baldwin [Sat, 25 Jun 2016 04:00:04 +0000 (21:00 -0700)]
Fake VFORK_DONE events when following only the parent after a vfork.

FreeBSD does not currently report a ptrace event for a parent process
after it resumes due to the child exiting the shared memory region after
a vfork.  Take the same approach used in linux-nat.c in this case of
sleeping for a while and then reporting a fake VFORK_DONE event.

gdb/ChangeLog:

* fbsd-nat.c (struct fbsd_fork_child_info): Rename to ...
(struct fbsd_fork_info): ... this.
(struct fbsd_fork_info) <child>: Rename to ...
(struct fbsd_fork_info) <ptid>: ... this.
(fbsd_pending_children): Update type.
(fbsd_remember_child): Update type and field name.
(fbsd_is_child_pending): Likewise.
(fbsd_pending_vfork_done): New variable.
(fbsd_is_vfork_done_pending): New function.
(fbsd_next_vfork_done): New function.
(fbsd_resume): Don't resume processes with a pending vfork done
event.
(fbsd_wait): Report pending vfork done events.
(fbsd_follow_fork): Delay and record a pending vfork done event
for a vfork parent when detaching the child.

8 years agoMove fbsd_resume and related functions below fork following helper code.
John Baldwin [Sat, 25 Jun 2016 04:06:36 +0000 (21:06 -0700)]
Move fbsd_resume and related functions below fork following helper code.

gdb/ChangeLog:

* fbsd-nat.c (super_resume): Move earlier next to "super_wait".
(resume_one_thread_cb): Move below fork following helper code.
(resume_all_threads_cb): Likewise.
(fbsd_resume): Likewise.

8 years agoHonor detach-on-fork on FreeBSD.
John Baldwin [Sat, 25 Jun 2016 01:24:21 +0000 (18:24 -0700)]
Honor detach-on-fork on FreeBSD.

Only detach from the new child process in the follow fork callback
if detach_fork is true.

gdb/ChangeLog:

* fbsd-nat.c (fbsd_follow_fork): Only detach child if
"detach_fork" is true.

8 years agoFix Thumb-2 BL detection
Thomas Preud'homme [Fri, 1 Jul 2016 15:13:25 +0000 (16:13 +0100)]
Fix Thumb-2 BL detection

2016-07-01  Thomas Preud'homme  <thomas.preudhomme@arm.com>

bfd/
* elf32-arm.c (using_thumb2_bl): New function.
(arm_type_of_stub): Declare thumb2 variable together and change type
to bfd_boolean.  Use using_thumb2_bl () to determine whether
THM_MAX_FWD_BRANCH_OFFSET or THM2_MAX_FWD_BRANCH_OFFSET should be
checked for BL range.
(elf32_arm_final_link_relocate): Use using_thumb2_bl () to determine
the bit size of BL offset.

ld/
* testsuite/ld-arm/arm-elf.exp (Thumb-2 BL): Assemble for ARMv7.
(Thumb-2 BL on ARMv6-M): New testcase.
* testsuite/ld-arm/thumb2-bl.d: Do not try to match testcase filename.
* testsuite/ld-arm/thumb2-bl.s: Do not select architecture.

8 years agoSet debug registers on all threads belonging to the current inferior.
John Baldwin [Tue, 28 Jun 2016 00:44:58 +0000 (17:44 -0700)]
Set debug registers on all threads belonging to the current inferior.

gdb/ChangeLog:

* x86bsd-nat.c: Include 'gdbthread.h'.
(x86bsd_dr_set): Set debug registers on all threads belonging to
the current inferior.

8 years agoConsolidate x86 debug register code for BSD native targets.
John Baldwin [Mon, 27 Jun 2016 20:19:09 +0000 (13:19 -0700)]
Consolidate x86 debug register code for BSD native targets.

Move the debug register support code from amd64bsd-nat.c and
i386bsd-nat.c into a shared x86bsd-nat.c.

Instead of setting up x86_dr_low in amd64fbsd-nat.c and
i386fbsd-nat.c, add a x86bsd_target function that creates a new target
that inherits from inf_ptrace and sets up x86 debug registers if
supported.  In addition to initializing x86_dr_low, the x86bsd target
installs a custom mourn_inferior target operation to clean up the
x86 debug register state.  Previously this was only done on amd64.
Now it will be done for both i386 and amd64.  The i386bsd_target and
amd64bsd_target functions create targets that inherit from x86bsd
rather than inf_ptrace.

gdb/ChangeLog:

* Makefile.in [HFILES_NO_SRCDIR]: Replace 'amd64bsd-nat.h' with
'x86bsd-nat.h'.
* amd64bsd-nat.c: Include 'x86bsd-nat.h' instead of
'amd64bsd-nat.h'.
(amd64bsd_xsave_len): Rename and move to x86bsd-nat.c.
(amd64bsd_fetch_inferior_registers): Replace 'amd64bsd_xsave_len'
with 'x86bsd_xsave_len'.
(amd64bsd_store_inferior_registers): Likewise.
(amd64bsd_target): Inherit from x86bsd_target.
(amd64bsd_dr_get): Rename and move to x86bsd-nat.c.
(amd64bsd_dr_set): Likewise.
(amd64bsd_dr_set_control): Likewise.
(amd64bsd_dr_set_addr): Likewise.
(amd64bsd_dr_get_addr): Likewise.
(amd64bsd_dr_get_status): Likewise.
(amd64bsd_dr_get_control): Likewise.
* amd64fbsd-nat.c: Include 'x86bsd-nat.h' instead of
'amd64bsd-nat.h'.
(super_mourn_inferior): Move to x86bsd-nat.c.
(amd64fbsd_mourn_inferior): Rename and move to x86bsd-nat.c.
(amd64fbsd_read_description): Replace 'amd64bsd_xsave_len' with
'x86bsd_xsave_len'.
(_initialize_amd64fbsd_nat): Remove x86 watchpoint setup and
mourn_inferior' target op.
* config/i386/fbsd.mh (NATDEPFILES): Add x86bsd-nat.o.
* config/i386/fbsd64.mh: Likewise.
* config/i386/nbsd64.mh: Likewise.
* config/i386/nbsdelf.mh: Likewise.
* config/i386/obsd.mh: Likewise.
* config/i386/obsd64.mh: Likewise.
* i386bsd-nat.c: Include 'x86bsd-nat.h'.
(i386bsd_xsave_len): Rename and move to x86bsd-nat.c.
(i386bsd_fetch_inferior_registers): Replace 'i386bsd_xsave_len'
with 'x86bsd_xsave_len'.
(i386bsd_store_inferior_registers): Likewise.
(i386bsd_target): Inherit from x86bsd_target.
(i386bsd_dr_get): Rename and move to x86bsd-nat.c.
(i386bsd_dr_set): Likewise.
(i386bsd_dr_set_control): Likewise.
(i386bsd_dr_set_addr): Likewise.
(i386bsd_dr_get_addr): Likewise.
(i386bsd_dr_get_status): Likewise.
(i386bsd_dr_get_control): Likewise.
* i386bsd-nat.h (i386bsd_xsave_len): Remove.
(i386bsd_dr_set_control): Remove.
(i386bsd_dr_set_addr): Remove.
(i386bsd_dr_get_addr): Remove.
(i386bsd_dr_get_status): Remove.
(i386bsd_dr_get_control): Remove.
* i386fbsd-nat.c: Include 'x86bsd-nat.h'.
(i386fbsd_read_description): Replace 'i386bsd_xsave_len' with
'x86bsd_xsave_len'.
(_initialize_i386fbsd_nat): Remove x86 watchpoint setup and
mourn_inferior' target op.
* x86bsd-nat.c: New file.
* x86bsd-nat.h: New file.

8 years agoFix potential buffer overflows with sprintf and very large integer values.
Nick Clifton [Fri, 1 Jul 2016 11:35:01 +0000 (12:35 +0100)]
Fix potential buffer overflows with sprintf and very large integer values.

binutuils* prdbg.c (pr_enum_type): Use a buffer big enough to hold an
extremely large decimal value.
(pr_range_type): Likewise.
(pr_array_type): Likewise.
(pr_struct_field): Likewise.
(pr_class_baseclass): Likewise.
(pr_class_method_variant): Likewise.
(pr_tag_type): Likewise.
(pr_int_constant): Likewise.
(pr_typed_constant): Likewise.
(pr_variable): Likewise.
(pr_function_parameter): Likewise.
(pr_start_block): Likewise.
(pr_lineno): Likewise.
(pr_end_block): Likewise.
(tg_enum_type): Likewise.
(tg_int_constant): Likewise.
(tg_typed_constant): Likewise.
(tg_start_block): Likewise.

gas * macro.c (macro_expand_body): Use a buffer big enough to hold an
extremely large integer.

8 years agoExtend JIT-reader test and fix GDB problems that exposes
Pedro Alves [Fri, 1 Jul 2016 10:56:39 +0000 (11:56 +0100)]
Extend JIT-reader test and fix GDB problems that exposes

The jit-reader.exp test isn't really exercising the jit-reader's
unwinder API at all.  This commit address that, and then fixes GDB
problems exposed.

- The custom JIT reader provided for the jit-reader.exp testcase
  always rejects the jitted function's frame...

  This is because the custom JIT reader in the testcase never ever
  sets state->code_begin/end, so the bounds check in
  gdb.base/jitreader.c:unwind_frame:

   if (this_ip >= state->code_end || this_ip < state->code_begin)
     return GDB_FAIL;

  tends to fail, unless you're "lucky" (because it references
  uninitialized data).

  The result is that GDB is always actually using a built-in unwinder
  for the jitted function.

- The provided unwinder doesn't do anything that GDB's built-in
  unwinder can't do.

  IOW, we can't really tell whether the JIT reader's unwinder is
  working or not.

  I fixed that by making the jitted function mangle its own stack
  pointer with a xor, and then teaching the jit unwinder to demangle
  it back (another xor).  So now "backtrace" with GDB's built-in
  unwinder fails while with the jit unwinder, it succeeds.

- GDB crashes after unloading the JIT reader, and flushing frames...

  I made the testcase use the "flushregs" command after unloading the
  JIT reader, to force the JIT frames to be flushed.  However, that
  crashes GDB...

  When reinit_frame_cache tears down a frame's cache, it calls its
  unwinder's dealloc_cache method, which for JIT frames ends up in
  jit.c:jit_dealloc_cache.  This function calls each of the frame's
  gdb_reg_value's "free" pointer:

   for (i = 0; i < gdbarch_num_regs (frame_arch); i++)
     if (priv_data->registers[i] && priv_data->registers[i]->free)
       priv_data->registers[i]->free (priv_data->registers[i]);

  and the problem is these gdb_reg_value instances have been returned
  by the JIT reader that has been already unloaded, and their "free"
  function pointers likely point to functions in the DSO that has
  already been unloaded...

  A fix for that could be to call reinit_frame_cache in
  jit_reader_unload_command _before_ unloading the jit reader DSO so
  that the jit reader is given a chance to clean up the gdb_reg_values
  before it is unloaded.  However, the fix for the point below makes
  this unnecessary, because it stops jit.c from keeping around
  gdb_reg_values in the first place.

- However, it still makes sense to clear the frame cache when loading
  or unloading a JIT unwinder.

  This makes testing a JIT unwinder a bit simpler.

- Not only the frame cache actually -- gdb is not unloading the
  jit-registered objfiles when the JIT reader is unloaded, and not
  loading the already-registered descriptors when a JIT reader is
  loaded.

  The new test exercises unloading the jit reader, loading it back
  again, and then making sure the JIT reader's unwinder works again.
  Without the unload/re-load of already-read descriptors, the newly
  loaded JIT would have no idea where the new function is, because
  it's stored at symbol read time.

- I added a couple "info frame" calls to the test, and that
  crashes GDB...

  The problem is that jit_frame_prev_register assumes it'll only be
  called for raw registers, so when it gets a pseudo register number,
  the "priv->registers[reg]" access is really an out-of-bounds access.

  To fix that, I made jit_frame_prev_register use
  gdbarch_pseudo_register_read_value for reading the pseudo-registers.
  However, that works with a regcache and we don't have one.  To fix
  that, I made the JIT unwinder store a regcache in its cache instead
  of an array of gdb_reg_value pointers.

gdb/ChangeLog:
2016-07-01  Pedro Alves  <palves@redhat.com>
    Tom Tromey  <tom@tromey.com>

* jit.c (jit_reader_load_command): Call reinit_frame_cache and
jit_inferior_created_hook.
(jit_reader_unload_command): Call reinit_frame_cache and
jit_inferior_exit_hook.
* jit.c (struct jit_unwind_private) <registers>: Delete field.
<regcache>: New field.
(jit_unwind_reg_set_impl): Set the register's value in the
regcache.  Free the passed-in gdb_reg_value.
(jit_dealloc_cache): Adjust to free the regcache.
(jit_frame_sniffer): Allocate a regcache instead of an array of
gdb_reg_value pointers.
(jit_frame_this_id): Adjust.
(jit_frame_prev_register): Read raw registers off of the regcache
instead of from the gdb_reg_value pointer array.  Use
gdbarch_pseudo_register_read_value to read pseudo registers.
* regcache.c (regcache_raw_set_cached_value): New function,
factored out from ...
(regcache_raw_write): ... here.
* regcache.h (regcache_raw_set_cached_value): Declare.

gdb/testsuite/ChangeLog:
2016-07-01  Pedro Alves  <palves@redhat.com>

* gdb.base/jit-reader.exp (info_registers_current_frame): New
procedure.
(jit_reader_test): Test the jit reader's unwinder.
* gdb.base/jithost.c (jit_function_00_code): New global.
(main): Use memcpy to fill in the mmapped code, instead of poking
bytes manually here.
* gdb.base/jitreader.c (enum register_mapping) <AMD64_RBP>: New
value.
(read_debug_info): Save the function's range.
(read_sp): New function.
(unwind_frame): Use it.  Also unwind RBP.
(get_frame_id): Use read_sp.
(gdb_init_reader): Use calloc instead of malloc.
* lib/gdb.exp (get_hexadecimal_valueof): Add optional 'test'
parameter.  Use gdb_test_multiple.

8 years agoFix failure to detach if process exits while detaching on Linux
Pedro Alves [Fri, 1 Jul 2016 10:16:33 +0000 (11:16 +0100)]
Fix failure to detach if process exits while detaching on Linux

This commit fixes detaching on Linux when some thread exits the whole
thread group (process) just while we're detaching.

On Linux, a ptracer must detach from each LWP individually, with
PTRACE_DETACH.  Since PTRACE_DETACH sets the thread running free, if
one of the already-detached threads causes the whole thread group to
exit (e.g., simply calls exit), the kernel force-kills the other
threads in the group, making them zombie, just as we're still
detaching them.  Since PTRACE_DETACH against a zombie thread fails
with ESRCH, and gdb/gdbserver are not expecting this, the detach fails
with an error like: "Can't detach process: No such process.".

This patch detects this detach failure as normal, and instead of
erroring out, reaps the now-dead thread.

New test included, that exercises several different scenarios that
cause GDB/GDBserver to error out when it should not.

Tested on x86-64 GNU/Linux with {unix, native-gdbserver,
native-extended-gdbserver}

Note: without the previous fix, the "single-process + continue"
variant of the new test would fail with:

 (gdb) PASS: gdb.threads/process-dies-while-detaching.exp: single-process: continue: watchpoint: switch to parent
 continue
 Continuing.
 Warning:
 Could not insert hardware watchpoint 3.
 Could not insert hardware breakpoints:
 You may have requested too many hardware breakpoints/watchpoints.

 Command aborted.
 (gdb) FAIL: gdb.threads/process-dies-while-detaching.exp: single-process: continue: watchpoint: continue

gdb/gdbserver/ChangeLog:
2016-07-01  Pedro Alves  <palves@redhat.com>
    Antoine Tremblay  <antoine.tremblay@ericsson.com>

* linux-low.c: Change interface to take the target lwp_info
pointer directly and return void.  Handle detaching from a zombie
thread.
(linux_detach_lwp_callback): New function.
(linux_detach): Detach from the leader thread after detaching from
the clone threads.

gdb/ChangeLog:
2016-07-01  Pedro Alves  <palves@redhat.com>
    Antoine Tremblay  <antoine.tremblay@ericsson.com>

* inf-ptrace.c (inf_ptrace_detach_success): New function, factored
out from ...
(inf_ptrace_detach): ... here.
* inf-ptrace.h (inf_ptrace_detach_success): New declaration.
* linux-nat.c (get_pending_status): Rename to ...
(get_detach_signal): ... this, and return a host signal instead of
filling in a wait status.
(detach_one_lwp): New function, factored out from detach_callback
and adjusted to handle detaching from a zombie thread.
(detach_callback): Skip the leader thread.
(linux_nat_detach): No longer defer to inf_ptrace_detach to detach
the leader thread, nor build a signal string to pass down.
Instead, use target_announce_detach, detach_one_lwp and
inf_ptrace_detach_success.

gdb/testsuite/ChangeLog:
2016-07-01  Pedro Alves  <palves@redhat.com>
    Antoine Tremblay  <antoine.tremblay@ericsson.com>

* gdb.threads/process-dies-while-detaching.c: New file.
* gdb.threads/process-dies-while-detaching.exp: New file.

8 years agoForget watchpoint locations when inferior exits or is killed/detached
Pedro Alves [Fri, 1 Jul 2016 10:16:32 +0000 (11:16 +0100)]
Forget watchpoint locations when inferior exits or is killed/detached

If you have two inferiors (or more), set watchpoints in one of the
inferiors, and then that inferior exits, until you manually delete the
watchpoint (or something forces a breakpoint re-set), you can't resume
the other inferior.

This is exercised by the test added by this commit.  Without the GDB
fix, this test fails like this:

 FAIL: gdb.multi/watchpoint-multi-exit.exp: dispose=kill: continue to marker in inferior 1
 FAIL: gdb.multi/watchpoint-multi-exit.exp: dispose=detach: continue to marker in inferior 1
 FAIL: gdb.multi/watchpoint-multi-exit.exp: dispose=exit: continue to marker in inferior 1

and gdb.log shows (in all three cases):

 (gdb) continue
 Continuing.
 Warning:
 Could not insert hardware watchpoint 2.
 Could not insert hardware breakpoints:
 You may have requested too many hardware breakpoints/watchpoints.

 Command aborted.
 (gdb) FAIL: gdb.multi/watchpoint-multi-exit.exp: dispose=kill: continue to marker in inferior 1

The problem is that GDB doesn't forget about the locations of
watchpoints set in the inferior that is now dead.  When we try to
continue the inferior that is still alive, we reach
insert_breakpoint_locations, which has the the loop that triggers the
error:

  /* If we failed to insert all locations of a watchpoint, remove
     them, as half-inserted watchpoint is of limited use.  */

That loop finds locations that are not marked inserted, but which
according to should_be_inserted should have been inserted, and so
errors out.

gdb/ChangeLog:
2016-07-01  Pedro Alves  <palves@redhat.com>

* breakpoint.c (breakpoint_init_inferior): Discard watchpoint
locations.
* infcmd.c (detach_command): Call breakpoint_init_inferior.

gdb/testsuite/ChangeLog:
2016-07-01  Pedro Alves  <palves@redhat.com>

* gdb.multi/watchpoint-multi-exit.c: New file.
* gdb.multi/watchpoint-multi-exit.exp: New file.

8 years agoFactor out "Detaching from program" message printing
Pedro Alves [Fri, 1 Jul 2016 10:16:32 +0000 (11:16 +0100)]
Factor out "Detaching from program" message printing

Several targets have a copy of the same code that prints

 "Detaching from program ..."

in their target_detach implementation.  Factor that out to a common
function.

(For now, I left the couple targets that print this a bit differently
alone.  Maybe this could be further pulled out into infcmd.c.  If we
did that, and those targets want to continue printing differently,
this new function could be converted to a target method.)

gdb/ChangeLog:
2016-07-01  Pedro Alves  <palves@redhat.com>

* darwin-nat.c (darwin_detach): Use target_announce_detach.
* inf-ptrace.c (inf_ptrace_detach): Likewise.
* nto-procfs.c (procfs_detach): Likewise.
* remote.c (remote_detach_1): Likewise.
* target.c (target_announce_detach): New function.
* target.h (target_announce_detach): New declaration.

8 years agoFix formatting of some previous gdb/testsuite/ChangeLog entries
Pedro Alves [Fri, 1 Jul 2016 10:24:21 +0000 (11:24 +0100)]
Fix formatting of some previous gdb/testsuite/ChangeLog entries

8 years agoFix formatting of some previous gdb/ChangeLog entries
Pedro Alves [Fri, 1 Jul 2016 10:17:58 +0000 (11:17 +0100)]
Fix formatting of some previous gdb/ChangeLog entries

8 years agoExpect the objcopy without global symbols test to fail for ARM and AArch64 targets.
Nick Clifton [Fri, 1 Jul 2016 09:32:45 +0000 (10:32 +0100)]
Expect the objcopy without global symbols test to fail for ARM and AArch64 targets.

* testsuite/binutils-all/objcopy.exp
(objcopy_test_without_global_symbol): Expect this test to fail on
the AArch64 and ARM targets, since they preserve their mapping
symbols.

8 years agox86-64/MPX: relax no-RIP-relative-addressing testcase
Jan Beulich [Fri, 1 Jul 2016 09:17:30 +0000 (11:17 +0200)]
x86-64/MPX: relax no-RIP-relative-addressing testcase

... for COFF targets.

8 years agoAdd marker for 2.27 branch.
Tristan Gingold [Fri, 1 Jul 2016 08:57:46 +0000 (10:57 +0200)]
Add marker for 2.27 branch.

binutils/
2016-07-01  Tristan Gingold  <gingold@adacore.com>

* NEWS: Add marker for 2.27.

gas/
2016-07-01  Tristan Gingold  <gingold@adacore.com>

* NEWS: Add marker for 2.27.

ld/
2016-07-01  Tristan Gingold  <gingold@adacore.com>

* NEWS: Add marker for 2.27.

8 years agoFix mis-placement in binutils.texi
Tristan Gingold [Wed, 29 Jun 2016 10:09:06 +0000 (12:09 +0200)]
Fix mis-placement in binutils.texi

binutils/
* doc/binutils.texi (objdump): Fix mis-placement.

8 years agox86-64/MPX: bndmk, bndldx, and bndstx don't allow RIP-relative addressing
Jan Beulich [Fri, 1 Jul 2016 07:07:15 +0000 (09:07 +0200)]
x86-64/MPX: bndmk, bndldx, and bndstx don't allow RIP-relative addressing

Additionally warn about scaling factors other than 1 for the latter
two, as those get ignored by the hardware.