Alan Modra [Thu, 16 Feb 2017 11:49:10 +0000 (22:19 +1030)]
ld testsuite function pointer comparisons vs. hppa
ld/testsuite/ld-elf/check-ptr-eq.c fails for hppa, since function
pointers may point at plabels. It isn't valid to cast two function
pointers to void* and then compare the void pointers.
* testsuite/ld-elf/check-ptr-eq.c (check_ptr_eq): Change params
from void pointers to function pointers.
* testsuite/ld-elf/pr18718.c: Update to suit.
* testsuite/ld-elf/pr18720a.c: Update to suit.
Alan Modra [Tue, 14 Feb 2017 00:15:51 +0000 (10:45 +1030)]
hppa -z relro again
I misunderstood the hppa alias problem. File offsets of segments need
to be such that no page is mapped twice with different permissions.
(Which still seems to me like something the kernel could fix, but
anyhow, this is not so difficult to achieve in ld.)
PR 21000
bfd/
* elf-bfd.h (struct elf_backend_data): Add no_page_alias.
* elfxx-target.h (elf_backend_no_page_alias): Define.
(elfNN_bed): Init new field.
* elf.c (assign_file_positions_for_load_sections): If no_page_alias
ensure PT_LOAD segment starts on a new page.
* elf32-hppa.c (elf_backend_no_page_alias): Define.
ld/
* testsuite/ld-elf/loadaddr1.d: Adjust for hppa file offsets.
* testsuite/ld-elf/loadaddr2.d: Likewise.
* testsuite/ld-elf/loadaddr3a.d: Likewise.
* testsuite/ld-scripts/rgn-at5.d: Likewise.
Alan Modra [Thu, 16 Feb 2017 01:53:12 +0000 (12:23 +1030)]
PR21132, hppa-linux pie support doesn't work
This fixes a long-standing hppa bug seen when generating PIEs, and I
think possible to trigger with forced local symbols in shared
libraries. Not allocating enough space for PLT relocs results in ld
writing outside of the buffer.
PR 21132
* elf32-hppa.c (allocate_plt_static): Allocate space for relocs
if pic.
Alan Modra [Thu, 16 Feb 2017 04:43:56 +0000 (15:13 +1030)]
Fix more powerpc testsuite source errors
* testsuite/ld-powerpc/vxworks1-lib.s: Correct addi to addic.
* testsuite/ld-powerpc/vxworks1-lib.dd: Adjust to suit.
Jiong Wang [Thu, 16 Feb 2017 09:40:03 +0000 (09:40 +0000)]
[Patch] Add BFD_LINKER_CREATED to BFD_FLAGS_SAVED
bfd/
* bfd.c (BFD_FLAGS_SAVED): Add BFD_LINKER_CREATED.
* bfd-in2.h: Regenerated.
Bug exposed by https://sourceware.org/ml/binutils/2017-02/msg00128.html
Sergio Durigan Junior [Wed, 15 Feb 2017 20:08:19 +0000 (15:08 -0500)]
PR gdb/21164: maint print {symbols,msymbols,psymbols} without args crash
This is a fix for PR gdb/21164. The problem started to happen after:
commit
34c41c681f4a0a0dfe0405c7d2aecf458520557a
Author: Doug Evans <xdje42@gmail.com>
AuthorDate: Mon Dec 19 08:33:46 2016 -0800
New syntax for mt print symbols,msymbols,psymbols.
This change introduced new syntax for the mentioned commands, and
improved the parsing of arguments by using 'gdb_buildargv'. However,
it is necessary to check if the argv being built is not NULL, which
can happen if the user doesn't provide any arguments to these
commands.
gdb/ChangeLog:
2017-02-15 Sergio Durigan Junior <sergiodj@redhat.com>
PR gdb/21164
* psymtab.c (maintenance_print_psymbols): Verify if 'argv' is not
NULL before using it.
* symmisc.c (maintenance_print_symbols): Likewise.
(maintenance_print_msymbols): Likewise.
gdb/testsuite/ChangeLog:
gdb/ChangeLog:
2017-02-15 Sergio Durigan Junior <sergiodj@redhat.com>
PR gdb/21164
* gdb.base/maint.exp: Add testcases for when the commands do
not have arguments.
GDB Administrator [Thu, 16 Feb 2017 00:00:30 +0000 (00:00 +0000)]
Automatic date update in version.in
H.J. Lu [Wed, 15 Feb 2017 19:39:30 +0000 (11:39 -0800)]
i386: Allow "lea foo@GOT, %reg" in PIC
"lea foo@GOT, %reg" is OK in PIC since it only loads the GOT offset
into register, which can be used later with a GOT base register to
get the value in the GOT entry.
bfd/
PR ld/21168
* elf32-i386.c (elf_i386_relocate_section): Allow
"lea foo@GOT, %reg" in PIC.
ld/
PR ld/21168
* testsuite/ld-i386/i386.exp: Run pr21168.
* testsuite/ld-i386/pr21168a.c: New file.
* testsuite/ld-i386/pr21168b.S: Likewise.
H.J. Lu [Wed, 15 Feb 2017 18:55:51 +0000 (10:55 -0800)]
Add a test for R_386_GOT32/R_386_GOT32X IFUNC reloc error
bfd/
PR ld/20244
* elf32-i386.c (elf_i386_relocate_section): Properly get IFUNC
symbol name when reporting R_386_GOT32/R_386_GOT32X relocation
error against local IFUNC symbol without a base register for
PIC.
ld/
PR ld/20244
* testsuite/ld-i386/i386.exp: Run pr20244-4a, pr20244-4b and
pr20244-4c.
* testsuite/ld-i386/pr20244-4.s: New file.
* testsuite/ld-i386/pr20244-4a.d: Likewise.
* testsuite/ld-i386/pr20244-4b.d: Likewise.
* testsuite/ld-i386/pr20244-4c.d: Likewise.
Andrew Waterman [Tue, 14 Feb 2017 23:37:04 +0000 (15:37 -0800)]
Add SFENCE.VMA instruction
include/ChangeLog:
2017-02-14 Andrew Waterman <andrew@sifive.com>
* opcode/riscv-opc.h (MATCH_SFENCE_VMA): New define.
(MASK_SFENCE_VMA): Likewise.
(sfence_vma): Declare instruction.
opcodes/ChangeLog:
2017-02-14 Andrew Waterman <andrew@sifive.com>
* riscv-opc.c (riscv_opcodes): Add sfence.vma instruction and
pseudoinstructions.
Richard Sandiford [Wed, 15 Feb 2017 16:54:21 +0000 (16:54 +0000)]
[AArch64] Add SVE system registers
This patch adds the SVE-specific system registers.
opcodes/
* aarch64-opc.c (aarch64_sys_regs): Add SVE registers.
(aarch64_sys_reg_supported_p): Handle them.
gas/
* testsuite/gas/aarch64/sve-sysreg.s,
testsuite/gas/aarch64/sve-sysreg.d,
testsuite/gas/aarch64/sve-sysreg-invalid.d,
testsuite/gas/aarch64/sve-sysreg-invalid.l: New tests.
Richard Sandiford [Wed, 15 Feb 2017 16:51:17 +0000 (16:51 +0000)]
[AArch64] Fix +sve documentation
The documentation entry for the SVE feature incorrectly said that
it was enabled by default for ARMv8-A or later. This patch fixes
that and also mentions that +sve implies +simd. (It also implies
+fp, but that follows by transitivity.)
gas/
* doc/c-aarch64.texi: Fix sve entry.
Maciej W. Rozycki [Tue, 7 Feb 2017 02:08:23 +0000 (02:08 +0000)]
LD: vfinfo: Make clever formatters consistent WRT function name reporting
Remove an inconsistency in linker error message processing causing that
it depends on the ability to infer the name of the originating source
file whether or not the name of the offending function is repeated by
clever formatters for each issue reported within the function.
Taking the `ld/testsuite/ld-powerpc/tocopt7.s' test case source as an
example and the `powerpc-linux' target we have:
$ as -gdwarf2 -o tocopt.o -a64 tocopt.s
$ ld -o tocopt -melf64ppc tocopt.o
tocopt.o: In function `_start':
tocopt.s:35:(.text+0x14): toc optimization is not supported for 0x3fa00000 instruction.
tocopt.s:49:(.text+0x34): toc optimization is not supported for 0x3fa00000 instruction.
$
vs:
$ as -o tocopt.o -a64 tocopt.s
$ ld -o tocopt -melf64ppc tocopt.o
tocopt.o: In function `_start':
(.text+0x14): toc optimization is not supported for 0x3fa00000 instruction.
tocopt.o: In function `_start':
(.text+0x34): toc optimization is not supported for 0x3fa00000 instruction.
$
Similarly with the `mips-linux' target and this source:
$ cat jal-global-multi-overflow.s
.text
.set noreorder
.space 0x2000
.align 4
.globl foo
.ent foo
foo:
jal bar
nor $0, $0
jal bar
nor $0, $0
.end foo
.space 0x1ff0
.align 4
.globl bar
.ent bar
bar:
jal foo
nor $0, $0
jal foo
nor $0, $0
.end bar
$ as -o jal-global-multi-overflow.o jal-global-multi-overflow.s
$ ld -Ttext 0x1fffd000 -e foo -o jal-global-multi-overflow jal-global-multi-overflow.o
jal-global-multi-overflow.o: In function `foo':
(.text+0x2000): relocation truncated to fit: R_MIPS_26 against `bar'
jal-global-multi-overflow.o: In function `foo':
(.text+0x2008): relocation truncated to fit: R_MIPS_26 against `bar'
jal-global-multi-overflow.o: In function `bar':
(.text+0x4000): relocation truncated to fit: R_MIPS_26 against `foo'
jal-global-multi-overflow.o: In function `bar':
(.text+0x4008): relocation truncated to fit: R_MIPS_26 against `foo'
$
Not only this is inconsistent, but it causes output clutter as well with
redundant information.
The cause for this is a check in `vfinfo' the intent of which is to
print the function heading whenever (among others) the name of the
source file has changed, which however does not take into account a
situation where the name couldn't have been established both now and
previously.
Adjust the check then for this situation, yielding:
$ as -o tocopt.o -a64 tocopt.s
$ ld -o tocopt -melf64ppc tocopt.o
tocopt.o: In function `_start':
(.text+0x14): toc optimization is not supported for 0x3fa00000 instruction.
(.text+0x34): toc optimization is not supported for 0x3fa00000 instruction.
$
and:
$ as -o jal-global-multi-overflow.o jal-global-multi-overflow.s
$ ld -Ttext 0x1fffd000 -e foo -o jal-global-multi-overflow jal-global-multi-overflow.o
jal-global-multi-overflow.o: In function `foo':
(.text+0x2000): relocation truncated to fit: R_MIPS_26 against `bar'
(.text+0x2008): relocation truncated to fit: R_MIPS_26 against `bar'
jal-global-multi-overflow.o: In function `bar':
(.text+0x4000): relocation truncated to fit: R_MIPS_26 against `foo'
(.text+0x4008): relocation truncated to fit: R_MIPS_26 against `foo'
$
respectively instead. Adjust the test suite accordingly.
ld/
* ldmisc.c (vfinfo): Don't print the function name again either
if no source file name has been found both now and previously.
* testsuite/ld-cris/tls-err-20x.d: Adjust accordingly.
* testsuite/ld-mips-elf/mode-change-error-1.d: Likewise.
* testsuite/ld-mips-elf/unaligned-branch.d: Likewise.
* testsuite/ld-mips-elf/unaligned-branch-mips16.d: Likewise.
* testsuite/ld-mips-elf/unaligned-branch-micromips.d: Likewise.
* testsuite/ld-mips-elf/unaligned-branch-r6-1.d: Likewise.
* testsuite/ld-mips-elf/unaligned-branch-2.d: Likewise.
* testsuite/ld-mips-elf/unaligned-branch-r6-2.d: Likewise.
* testsuite/ld-mips-elf/unaligned-branch-ignore-2.d: Likewise.
* testsuite/ld-mips-elf/unaligned-branch-ignore-mips16.d:
Likewise.
* testsuite/ld-mips-elf/unaligned-branch-ignore-micromips.d:
Likewise.
* testsuite/ld-mips-elf/unaligned-branch-ignore-r6-1.d:
Likewise.
* testsuite/ld-mips-elf/unaligned-jalx-addend-1.d: Likewise.
* testsuite/ld-mips-elf/unaligned-jalx-addend-mips16-1.d:
Likewise.
* testsuite/ld-mips-elf/unaligned-jalx-addend-micromips-1.d:
Likewise.
* testsuite/ld-mips-elf/unaligned-jalx-addend-3.d: Likewise.
* testsuite/ld-mips-elf/unaligned-jump.d: Likewise.
* testsuite/ld-mips-elf/unaligned-jump-mips16.d: Likewise.
* testsuite/ld-mips-elf/unaligned-jump-micromips.d: Likewise.
* testsuite/ld-mips-elf/unaligned-lwpc-1.d: Likewise.
* testsuite/ld-mips-elf/unaligned-ldpc-1.d: Likewise.
* testsuite/ld-powerpc/tocopt.out: Likewise.
* testsuite/ld-powerpc/tocopt7.out: Likewise.
Maciej W. Rozycki [Tue, 7 Feb 2017 02:07:21 +0000 (02:07 +0000)]
PowerPC/BFD: Convert `%P: %H:' to `%H:' in error messages
Remove an inconsistency in BFD linker error messages across the PowerPC
backends, where in the presence of line information the `%P: %H:' format
sequence makes the first error message produced for any given function
different from subsequent ones.
Taking the `ld/testsuite/ld-powerpc/tocopt7.s' test case source as an
example and the `powerpc-linux' target we have:
$ as -gdwarf2 -o tocopt.o -a64 tocopt.s
$ ld -o tocopt -melf64ppc tocopt.o
ld: tocopt.o: In function `_start':
tocopt.s:35:(.text+0x14): toc optimization is not supported for 0x3fa00000 instruction.
ld: tocopt.s:49:(.text+0x34): toc optimization is not supported for 0x3fa00000 instruction.
$
where the first error message does not have the source file name
prefixed with the linker program executable's name, i.e. `ld:', whereas
the second error message does, as would any subsequent.
This is because with a multiple-line error message such as `%H' produces
`%P' only prints the program executable's name on the first line and not
any later ones. Also the PowerPC backend is the only part of BFD which
uses `%P' along with one of the clever `%C', `%D', `%G', `%H' format
specifiers. And last but not least this breaks a GNU Coding Standard's
requirement that error messages from compilers should look like this:
source-file-name:lineno: message
also quoted in `vfinfo' code handling these specifiers.
Convert `%P: %H:' to `%H:' in error messages across the PowerPC backends
then, yielding:
$ as -gdwarf2 -o tocopt.o -a64 tocopt.s
$ ld -o tocopt -melf64ppc tocopt.o
tocopt.o: In function `_start':
tocopt.s:35:(.text+0x14): toc optimization is not supported for 0x3fa00000 instruction.
tocopt.s:49:(.text+0x34): toc optimization is not supported for 0x3fa00000 instruction.
$
instead, making it consistent and matching the GNU Coding Standard's
requirement.
bfd/
* elf32-ppc.c (ppc_elf_check_relocs): Use `%H:' rather than
`%P: %H:' with `info->callbacks->einfo'.
(ppc_elf_relocate_section): Likewise.
* elf64-ppc.c (ppc64_elf_check_relocs): Likewise.
(ppc64_elf_edit_toc): Likewise.
(ppc64_elf_relocate_section): Likewise.
Maciej W. Rozycki [Tue, 7 Feb 2017 02:06:20 +0000 (02:06 +0000)]
LD: vfinfo: Remove static NULL initializers
Remove static NULL initializers, moving the respective variables from
data to BSS and saving some storage space.
ld/
* ldmisc.c (vfinfo) <'H'>: Remove static NULL initializers.
Thomas Preud'homme [Wed, 15 Feb 2017 11:24:27 +0000 (11:24 +0000)]
Fix illegal upper case gdb cmd in chained-calls.exp
3d7b173c29900879c9a5958dd6029fd36666e57c made upper case commands now
illegal. However gdb.cp/chained-calls.exp still contains one test using
P to print an expression. This patch fixes the testcase to use p
instead.
2017-02-13 Thomas Preud'homme <thomas.preudhomme@arm.com>
gdb/
* gdb.cp/chained-calls.exp: Use p instead of P.
Claudiu Zissulescu [Wed, 15 Feb 2017 10:57:51 +0000 (11:57 +0100)]
[ARC] Fix assembler relaxation.
Fix assembler relaxation step for add, ld, mov, mpy and sub
instructions. Add tests to it.
gas/
2017-02-15 Claudiu Zissulescu <claziss@synopsys.com>
* config/tc-arc.c (md_convert_frag): Remove @pcl relocation
information from input expression.
(assemble_insn): Make sure pcrel is correctly set.
(arc_pcrel_adjust): Compensate for PCL rounding.
* testsuite/gas/arc/relax-add01.d: New file.
* testsuite/gas/arc/relax-add01.s: Likewise.
* testsuite/gas/arc/relax-add02.d: Likewise.
* testsuite/gas/arc/relax-add02.s: Likewise.
* testsuite/gas/arc/relax-add03.d: Likewise.
* testsuite/gas/arc/relax-add03.s: Likewise.
* testsuite/gas/arc/relax-add04.d: Likewise.
* testsuite/gas/arc/relax-add04.s: Likewise.
* testsuite/gas/arc/relax-ld01.d: Likewise.
* testsuite/gas/arc/relax-ld01.s: Likewise.
* testsuite/gas/arc/relax-ld02.d: Likewise.
* testsuite/gas/arc/relax-ld02.s: Likewise.
* testsuite/gas/arc/relax-mov01.d: Likewise.
* testsuite/gas/arc/relax-mov01.s: Likewise.
* testsuite/gas/arc/relax-mov02.d: Likewise.
* testsuite/gas/arc/relax-mov02.s: Likewise.
* testsuite/gas/arc/relax-mpy01.d: Likewise.
* testsuite/gas/arc/relax-mpy01.s: Likewise.
* testsuite/gas/arc/relax-sub01.d: Likewise.
* testsuite/gas/arc/relax-sub01.s: Likewise.
* testsuite/gas/arc/relax-sub02.d: Likewise.
* testsuite/gas/arc/relax-sub02.s: Likewise.
* testsuite/gas/arc/relax-sub03.d: Likewise.
* testsuite/gas/arc/relax-sub03.s: Likewise.
* testsuite/gas/arc/relax-sub04.d: Likewise.
* testsuite/gas/arc/relax-sub04.s: Likewise.
opcodes/
2017-02-15 Claudiu Zissulescu <claziss@synopsys.com>
* arc-opc.c (UIMM6_20R): Define.
(SIMM12_20): Use above.
(SIMM12_20R): Define.
(SIMM3_5_S): Use above.
(UIMM7_A32_11R_S): Define.
(UIMM7_9_S): Use above.
(UIMM3_13R_S): Define.
(SIMM11_A32_7_S): Use above.
(SIMM9_8R): Define.
(UIMM10_A32_8_S): Use above.
(UIMM8_8R_S): Define.
(W6): Use above.
(arc_relax_opcodes): Use all above defines.
Nick Clifton [Wed, 15 Feb 2017 09:42:38 +0000 (09:42 +0000)]
Move Eric Christopher to Past Maintainers list.
* MAINTAINERS: (MIPS, MN10300): Move Eric Christopher to Past
Maintainers section.
Igor Kudrin [Wed, 15 Feb 2017 09:13:56 +0000 (09:13 +0000)]
Use Windows style directory separators when running sysroot tests under MinGW and Cygwin.
* testsuite/ld-scripts/sysroot-prefix.exp
(get_base_dir_for_scripts): New function.
(run_sysroot_prefix_test): Use get_base_dir_for_scripts.
Vladimir Radosavljevic [Wed, 15 Feb 2017 08:55:04 +0000 (00:55 -0800)]
Don't give an internal error for unsupported relocations.
gold/
* mips.cc (Target_mips::Scan::get_reference_flags): Remove
gold_unreachable from default case.
Vladimir Radosavljevic [Wed, 15 Feb 2017 08:47:36 +0000 (00:47 -0800)]
Add support for R_MIPS_HIGHER/HIGHEST, R_MICROMIPS_HIGHER/HIGHEST relocations.
2017-02-15 Vladimir Radosavljevic <Vladimir.Radosavljevic@imgtec.com>
PR gold/21111
* mips.cc (Mips_relocate_functions::relhigher): New method.
(Mips_relocate_functions::relhighest): Likewise.
(mips_get_size_for_reloc): Add support for relocs: R_MIPS_HIGHER and
R_MIPS_HIGHEST.
(Target_mips::Scan::local): Add support for relocs: R_MIPS_HIGHER,
R_MIPS_HIGHEST, R_MICROMIPS_HIGHER and R_MICROMIPS_HIGHEST.
(Target_mips::Scan::global): Likewise.
(Target_mips::Scan::get_reference_flags): Likewise.
(Target_mips::Relocate::relocate): Call static methods for resolving
HIGHER and HIGHEST relocations.
Vineet Gupta [Wed, 15 Feb 2017 08:52:53 +0000 (08:52 +0000)]
Distinguish some of the registers different on ARC700 and HS38 cpus
opcodes * arc-regs.h: Distinguish some of the registers different on
ARC700 and HS38 cpus.
gas * testsuite/gas/arc/st.d: Update for 0xe having a name now
Rahul Chaudhry [Wed, 15 Feb 2017 08:37:10 +0000 (00:37 -0800)]
Improved support for --icf=safe when used with -pie.
gold/
* x86_64.cc (Target_x86_64::do_can_check_for_function_pointers):
Return true even when building pie binaries.
(Target_x86_64::possible_function_pointer_reloc): Check opcode
for R_X86_64_PC32 relocations.
(Target_x86_64::local_reloc_may_be_function_pointer): Pass
extra arguments to local_reloc_may_be_function_pointer.
(Target_x86_64::global_reloc_may_be_function_pointer): Likewise.
* gc.h (gc_process_relocs): Add check for STT_FUNC.
* testsuite/Makefile.am (icf_safe_pie_test): New test case.
* testsuite/Makefile.in: Regenerate.
* testsuite/icf_safe_pie_test.sh: New shell script.
Tim Wiederhake [Wed, 15 Feb 2017 07:08:17 +0000 (08:08 +0100)]
Add missing ChangeLog entries.
This adds the missing ChangeLog entries for the "Python bindings" patch series.
GDB Administrator [Wed, 15 Feb 2017 00:00:23 +0000 (00:00 +0000)]
Automatic date update in version.in
Jim Wilson [Tue, 14 Feb 2017 23:23:12 +0000 (15:23 -0800)]
Add self to aarch64 maintainers. Fix mla instruction.
sim/
* MAINTAINTERS (aarch64): Add myself.
sim/aarch64/
* simulator.c (do_vec_MLA): Rewrite switch body.
sim/testsuite/sim/aarch64/
* mla.s: New.
Jim Wilson [Tue, 14 Feb 2017 22:35:57 +0000 (14:35 -0800)]
Fix bit/bif instructions.
sim/aarch64/
* simulator.c (do_vec_bit): Change loop limits from 16 and 8 to 4 and
2. Move test_false if inside loop. Fix logic for computing result
stored to vd.
sim/testsuite/sim/aarch64
* bit.s: New.
Jim Wilson [Tue, 14 Feb 2017 22:31:03 +0000 (14:31 -0800)]
Add ldn/stn single support, fix ldnr support.
sim/aarch64/
* simulator.c: (LDn_STn_SINGLE_LANE_AND_SIZE): New.
(do_vec_LDn_single, do_vec_STn_single): New.
(do_vec_LDnR): Add and set new nregs var. Replace switch on nregs with
loop over nregs using new var n. Add n times size to address in loop.
Add n to vd in loop.
(do_vec_load_store): Add comment for instruction bit 24. New var
single to hold instruction bit 24. Add new code to use single. Move
ldnr support inside single if statements. Fix ldnr register counts
inside post if statement. Change HALT_NYI calls to HALT_UNALLOC.
sim/testsuite/sim/aarch64/
* ldn_single.s: New.
* ldnr.s: New.
* stn_single.s: New.
Tom Tromey [Wed, 29 Apr 2015 15:44:24 +0000 (09:44 -0600)]
PR python/13598 - add before_prompt event
This adds an event that is emitted just before GDB presents a prompt
to the user. This provides Python code a way to react to whatever
changes might have been made by the previous command. For example, in
my GUI I use this to track changes to the selected frame and reflect
them in the UI.
Built and regtested on x86-64 Fedora 23.
gdb/ChangeLog
2017-02-14 Tom Tromey <tom@tromey.com>
PR python/13598:
* python/python.c (gdbpy_before_prompt_hook): Emit before_prompt
event.
* python/py-evts.c (gdbpy_initialize_py_events): Add
before_prompt registry.
* python/py-events.h (events_object) <before_prompt>: New field.
gdb/doc/ChangeLog
2017-02-14 Tom Tromey <tom@tromey.com>
PR python/13598:
* python.texi (Events In Python): Document events.before_prompt.
gdb/testsuite/ChangeLog
2017-02-14 Tom Tromey <tom@tromey.com>
PR python/13598:
* gdb.python/py-events.exp: Add before_prompt event tests.
Andreas Arnez [Tue, 14 Feb 2017 17:17:19 +0000 (18:17 +0100)]
Big-endian targets: Fix implptrpiece.exp
The test case implptrpiece.exp accesses the second byte of the short
integer number 1 and expects it to be zero. This is valid for
little-endian targets, but fails on big-endian targets.
This is fixed by distinguishing the expected value by endianness.
gdb/testsuite/ChangeLog:
* gdb.dwarf2/implptrpiece.exp: Fix check for big-endian targets.
Nick Clifton [Tue, 14 Feb 2017 15:10:34 +0000 (15:10 +0000)]
Fix invalid memory access displayiing contents of sections.
PR binutils/21159
* readelf.c (dump_section_as_strings): Reset the start address if
no decompression is perfromed.
(dump_section_as_bytes): Likewise.
Nick Clifton [Tue, 14 Feb 2017 14:17:09 +0000 (14:17 +0000)]
Fix an illegal memory access parsing corrupt STABD debug information.
PR binutils/21158
* rddbg.c (read_symbol_stabs_debugging_info): Check for a null or
empty symbol name.
Nick Clifton [Tue, 14 Feb 2017 14:07:29 +0000 (14:07 +0000)]
Fix handling of corrupt STABS enum type strings.
PR binutils/21157
* stabs.c (parse_stab_enum_type): Check for corrupt NAME:VALUE
pairs.
(parse_number): Exit early if passed an empty string.
Nick Clifton [Tue, 14 Feb 2017 13:24:09 +0000 (13:24 +0000)]
Fix illegal memory access problems with readelf processing corrupt RL78 binaries.
PR binutils/21155
* readelf.c (IN_RANGE): New macro. Tests for an address + offset
being within a given range.
(target_specific_reloc_handling): Use macro to test for underflow
as well as overflow of reloc offset.
Alan Modra [Tue, 14 Feb 2017 10:08:21 +0000 (20:38 +1030)]
PowerPC register expression checks
This stops powerpc gas blithely accepting such nonsense as
"addi %f4,%cr3,%r31".
PR 21118
gas/
* NEWS: Mention powerpc register checks.
* config/tc-ppc.c (struct pd_reg): Make value a short. Add flags.
(pre_defined_registers): Delete fpscr and pmr entries. Set
register type in flags.
(cr_names): Set type in flags.
(reg_name_search): Return pointer to struct pd_reg rather than value.
(register_name): Adjust to suit. Set X_md from flags.
(ppc_parse_name): Likewise.
(ppc_optimize_expr): New function.
(md_assemble): Verify expresion reg flags match operand.
* config/tc-ppc.h (md_optimize_expr): Define.
(ppc_optimize_expr): Declare.
include/
* opcode/ppc.h (PPC_OPERAND_*): Reassign values, regs first.
(PPC_OPERAND_SPR, PPC_OPERAND_GQR): Define.
opcodes/
* ppc-opc.c (powerpc_operands): Flag SPR, SPRG and TBR entries
with PPC_OPERAND_SPR. Flag PSQ and PSQM with PPC_OPERAND_GQR.
Alan Modra [Tue, 14 Feb 2017 10:00:27 +0000 (20:30 +1030)]
Fix powerpc testsuite source errors
PR 21118 work exposed these errors in the testsuite.
* testsuite/gas/ppc/cell.s: Correct invalid registers.
* testsuite/gas/ppc/vle-simple-1.s: Likewise.
* testsuite/gas/ppc/vle-simple-2.s: Likewise.
Alan Modra [Tue, 14 Feb 2017 05:29:13 +0000 (15:59 +1030)]
Update ppc64_elf_gc_mark_dynamic_ref
* elf64-ppc.c (ppc64_elf_gc_mark_dynamic_ref): Support
--gc-keep-exported, and test versioned field of sym rather than
looking for @ in name.
Tim Wiederhake [Mon, 21 Nov 2016 15:39:57 +0000 (16:39 +0100)]
Add documentation for new record Python bindings.
Signed-off-by: Tim Wiederhake <tim.wiederhake@intel.com>
gdb/ChangeLog:
* NEWS: Add record Python bindings entry.
gdb/doc/ChangeLog:
* python.texi (Recordings In Python): New section.
Change-Id: Ibacb5930085bff36b0003fde30db9a8178cb280b
Tim Wiederhake [Mon, 21 Nov 2016 15:39:57 +0000 (16:39 +0100)]
python: Add tests for record Python bindings
Signed-off-by: Tim Wiederhake <tim.wiederhake@intel.com>
gdb/testsuite/ChangeLog:
* gdb.python/py-record-btrace.c, gdb.python/py-record-btrace.exp,
gdb.python/py-record-full.c, gdb.python/py-record-full.exp: New file.
Change-Id: Icd919b4e1d5642f5cbc097a6aede1416eba402e5
Tim Wiederhake [Mon, 21 Nov 2016 15:39:57 +0000 (16:39 +0100)]
python: Implement btrace Python bindings for record history.
This patch implements the gdb.Record Python object methods and fields for
record target btrace. Also, implement a stub for record target full.
Signed-off-by: Tim Wiederhake <tim.wiederhake@intel.com>
gdb/ChangeLog:
* Makefile.in (SUBDIR_PYTHON_OBS): Add py-record-btrace.o,
py-record-full.o.
(SUBDIR_PYTHON_SRCS): Add py-record-btrace.c, py-record-full.c.
* python/py-record-btrace.c, python/py-record-btrace.h,
python/py-record-full.c, python/py-record-full.h: New file.
* python/py-record.c: Add include for py-record-btrace.h and
py-record-full.h.
(recpy_method, recpy_format, recpy_goto, recpy_replay_position,
recpy_instruction_history, recpy_function_call_history, recpy_begin,
recpy_end): Use functions from py-record-btrace.c and py-record-full.c.
* python/python-internal.h (PyInt_FromSsize_t, PyInt_AsSsize_t):
New definition.
(gdbpy_initialize_btrace): New export.
* python/python.c (_initialize_python): Add gdbpy_initialize_btrace.
Change-Id: I8bd893672ffc7e619cc1386767897249e125973a
Tim Wiederhake [Mon, 21 Nov 2016 15:39:57 +0000 (16:39 +0100)]
python: Create Python bindings for record history.
This patch adds three new functions to the gdb module in Python:
- start_recording
- stop_recording
- current_recording
start_recording and current_recording return an object of the new type
gdb.Record, which can be used to access the recorded data.
Signed-off-by: Tim Wiederhake <tim.wiederhake@intel.com>
gdb/ChangeLog
* Makefile.in (SUBDIR_PYTHON_OBS): Add python/py-record.o.
(SUBDIR_PYTHON_SRCS): Add python/py-record.c.
* python/py-record.c: New file.
* python/python-internal.h (gdbpy_start_recording,
gdbpy_current_recording, gdpy_stop_recording,
gdbpy_initialize_record): New export.
* python/python.c (_initialize_python): Add gdbpy_initialize_record.
(python_GdbMethods): Add gdbpy_start_recording,
gdbpy_current_recording and gdbpy_stop_recording.
Change-Id: I772aa9aa068621443f10a330b11dc7dc9a63face
Tim Wiederhake [Tue, 13 Dec 2016 10:24:56 +0000 (11:24 +0100)]
Add method to query current recording method to target_ops.
Signed-off-by: Tim Wiederhake <tim.wiederhake@intel.com>
gdb/ChangeLog
* record-btrace.c (record_btrace_record_method): New function.
(init_record_btrace_ops): Initialize to_record_method.
* record-full.c (record_full_record_method): New function.
(init_record_full_ops, init_record_full_core_ops): Add
record_full_record_method.
* record.h (enum record_method): New enum.
* target-debug.h (target_debug_print_enum_record_method: New define.
* target-delegates.c: Regenerate.
* target.c (target_record_method): New function.
* target.h: Include record.h.
(struct target_ops) <to_record_method>: New field.
(target_record_method): New export.
Change-Id: I05daa70e4e08a19901e848c731bb7d60cd87cc5a
Tim Wiederhake [Mon, 21 Nov 2016 15:39:57 +0000 (16:39 +0100)]
Add record_start and record_stop functions.
Signed-off-by: Tim Wiederhake <tim.wiederhake@intel.com>
gdb/ChangeLog
* record.h (record_start, record_stop): New export.
* record.c (record_start, record_stop): New function.
Change-Id: If235d4bde8ec61dab6dbd23e087430e66d2e91a7
Tim Wiederhake [Mon, 21 Nov 2016 15:39:57 +0000 (16:39 +0100)]
btrace: Use binary search to find instruction.
Currently, btrace_find_insn_by_number will iterate over all function call
segments to find the one that contains the needed instruction. This linear
search is too slow for the upcoming Python bindings that will use this
function to access instructions. This patch introduces a vector in struct
btrace_thread_info that holds pointers to all recorded function segments and
allows to use binary search.
The proper solution is to turn the underlying tree into a vector of objects
and use indices for access. This requires more work. A patch set is
currently being worked on and will be published later.
Signed-off-by: Tim Wiederhake <tim.wiederhake@intel.com>
gdb/ChangeLog:
* btrace.c (btrace_fetch): Copy function call segments pointer
into a vector.
(btrace_clear): Clear the vector.
(btrace_find_insn_by_number): Use binary search to find the correct
function call segment.
* btrace.h (brace_fun_p): New typedef.
(struct btrace_thread_info) <functions>: New field.
Change-Id: I8a7f67e80bfe4ff62c4192f74a2153a70bf2a035
Tim Wiederhake [Mon, 21 Nov 2016 15:39:57 +0000 (16:39 +0100)]
btrace: Export btrace_decode_error function.
Signed-off-by: Tim Wiederhake <tim.wiederhake@intel.com>
gdb/ChangeLog:
* record-btrace.c (btrace_ui_out_decode_error): Move most of it ...
* btrace.c (btrace_decode_error): ... here. New function.
* btrace.h (btrace_decode_error): New export.
Change-Id: I2b4b43a55dbfd9f526a540d2ad52a6708f31feba
Tim Wiederhake [Mon, 21 Nov 2016 15:39:57 +0000 (16:39 +0100)]
btrace: Count gaps as one instruction explicitly.
This gives all instructions, including gaps, a unique number. Add a function
to retrieve the error code if a btrace instruction iterator points to an
invalid instruction.
Signed-off-by: Tim Wiederhake <tim.wiederhake@intel.com>
gdb/ChangeLog:
* btrace.c (ftrace_call_num_insn, btrace_insn_get_error): New function.
(ftrace_new_function, btrace_insn_number, btrace_insn_cmp,
btrace_find_insn_by_number): Remove special case for gaps.
* btrace.h (btrace_insn_get_error): New export.
(btrace_insn_number, btrace_find_insn_by_number): Adjust comment.
* record-btrace.c (btrace_insn_history): Print number for gaps.
(record_btrace_info, record_btrace_goto): Handle gaps.
Change-Id: I8eb0e48a95f4278522fea74ea13526bfe6898ecc
Markus Metzger [Mon, 30 Jan 2017 08:16:27 +0000 (09:16 +0100)]
btrace: preserve call stack on function switch
On 64-bit FC25, the _dl_runtime_resolve function uses a conditional branch to
'call' a particular variant optimized for that system:
(gdb) disas _dl_runtime_resolve_avx_opt
Dump of assembler code for function _dl_runtime_resolve_avx_opt:
0x00007ffff7deeb60 <+0>: push %rax
0x00007ffff7deeb61 <+1>: push %rcx
0x00007ffff7deeb62 <+2>: push %rdx
0x00007ffff7deeb63 <+3>: mov $0x1,%ecx
0x00007ffff7deeb68 <+8>: xgetbv
0x00007ffff7deeb6b <+11>: mov %eax,%r11d
0x00007ffff7deeb6e <+14>: pop %rdx
0x00007ffff7deeb6f <+15>: pop %rcx
0x00007ffff7deeb70 <+16>: pop %rax
0x00007ffff7deeb71 <+17>: and $0x4,%r11d
0x00007ffff7deeb75 <+21>: bnd je 0x7ffff7def4a0 <_dl_runtime_resolve_sse_vex>
End of assembler dump.
When computing the function-level trace, btrace treats this as a switch from
_dl_runtime_resolve_avx_opt to _dl_runtime_resolve_sse_vex. We know that we
switched functions but we can't really say in which caller/callee relationship
those two functions are.
In addition to preserving the indentaion level, also preserve the caller
information. This is a heuristic since we don't really know. But at least in
this case, this seems to be the right thing to do.
This fixes a fail in gdb.btrace/rn-dl-bind.exp on 64-bit FC25.
gdb/
* btrace.c (ftrace_new_switch): Preserve up link and flags.
GDB Administrator [Tue, 14 Feb 2017 00:00:30 +0000 (00:00 +0000)]
Automatic date update in version.in
Palmer Dabbelt [Wed, 8 Feb 2017 19:26:07 +0000 (11:26 -0800)]
Don't use "_gp" on RISC-V, use "_global_pointer$" instead
"_gp" could conflict with ABI-complient code. While it's probably OK
because MIPS uses this name, we figured it'd be good to clean this up
before a release with RISC-V in it.
ld/ChangeLog:
2017-02-13 Palmer Dabbelt <palmer@dabbelt.com>
* emulparams/elf32lriscv-defs.sh (SDATA_START_SYMBOLS): Change
_gp to __global_pointer$.
bfd/ChangeLog:
2017-02-13 Palmer Dabbelt <palmer@dabbelt.com>
* elfnn-riscv.c (riscv_global_pointer_value): Change _gp to
__global_pointer$.
Nick Clifton [Mon, 13 Feb 2017 17:51:27 +0000 (17:51 +0000)]
Fix invalid memory access in the BFD library's DWARF parser.
PR binutils/21151
* dwarf2.c (_bfd_dwarf2_find_nearest_line): Check for an invalid
unit length field.
Thomas Preud'homme [Mon, 13 Feb 2017 17:46:59 +0000 (17:46 +0000)]
[ARM] Allow immediate without prefix in unified syntax for VCMP
2017-02-13 Thomas Preud'homme <thomas.preudhomme@arm.com>
gas/
* config/tc-arm.c (parse_ifimm_zero): Make prefix optional in unified
syntax.
* testsuite/gas/arm/vcmp-noprefix-imm.d: New file.
* testsuite/gas/arm/vcmp-noprefix-imm.s: New file.
Nick Clifton [Mon, 13 Feb 2017 17:23:10 +0000 (17:23 +0000)]
Fix illegal memory access bug in nm when run on a corrupt binary.
PR binutils/21150
* nm.c (file_symbol): Add test of string length before testing
string characters.
Nick Clifton [Mon, 13 Feb 2017 15:19:48 +0000 (15:19 +0000)]
Extend previous patch to cover uncompress_section_contents returning FALSE to other callers.
PR binutils/21135
(dump_section_as_bytes, load_specific_debug_section): Likewise.
Nick Clifton [Mon, 13 Feb 2017 15:04:37 +0000 (15:04 +0000)]
Fix invalid read of section contents whilst processing a corrupt binary.
PR binutils/21135
* readelf.c (dump_section_as_bytes): Handle the case where
uncompress_section_contents returns false.
Nick Clifton [Mon, 13 Feb 2017 14:52:48 +0000 (14:52 +0000)]
Fix invalid memory access attempting to read the compression header of a too-small compressed section.
PR binutils/21149
* readelf.c (get_compression_header): Add size parameter. Check
size against sizeof compression header before attempting to
extract the header.
(process_section_headers): Pass size to get_compression_header.
(dump_section_as_strings): Likewise.
(dump_section_as_bytes): Likewise.
(load_specific_debug_section): Likewise.
Nick Clifton [Mon, 13 Feb 2017 14:35:24 +0000 (14:35 +0000)]
Fix check for buffer overflow when processing version information.
PR binutils/21148
* readelf.c (process_version_sections): Include size of auxillary
version information when checking for buffer overflow.
Nick Clifton [Mon, 13 Feb 2017 14:17:07 +0000 (14:17 +0000)]
Fix access violation when reporting sections that could not be dumped.
PR binutils/21147
* readelf.c (process_section_contents): Fix off by one error
reporting un-dumped sections.
Nick Clifton [Mon, 13 Feb 2017 14:03:22 +0000 (14:03 +0000)]
Fix read-after-free error in readelf when processing multiple, relocated sections in an MSP430 binary.
PR binutils/21139
* readelf.c (target_specific_reloc_handling): Add num_syms
parameter. Check for symbol table overflow before accessing
symbol value. If reloc pointer is NULL, discard all saved state.
(apply_relocations): Pass num_syms to target_specific_reloc_handling.
Call target_specific_reloc_handling with a NULL reloc pointer
after processing all of the relocs.
Luis Machado [Mon, 13 Feb 2017 13:29:30 +0000 (07:29 -0600)]
Improve load command's help text
This fairly obvious patch adds usage text to the load command's help text.
Originally it did not have usage and mentioned things like FILE and OFFSET
without explaining how those should be passed in the command.
gdb/ChangeLog:
2017-02-13 Luis Machado <lgustavo@codesourcery.com>
* symfile (_initialize_symfile): Add usage text to the load command's
help text.
gdb/doc/ChangeLog:
2017-02-13 Luis Machado <lgustavo@codesourcery.com>
* gdb.texinfo (Target Commands): Document the optional offset
argument for the load command.
Luis Machado [Mon, 13 Feb 2017 13:16:34 +0000 (07:16 -0600)]
Fix gdb.linespec/explicit.exp
This patch addresses timeout failures i noticed while testing aarch64-elf.
FAIL: gdb.linespec/explicit.exp: complete unique function name (timeout)
FAIL: gdb.linespec/explicit.exp: complete non-unique function name (timeout)
FAIL: gdb.linespec/explicit.exp: complete non-existant function name (timeout)
FAIL: gdb.linespec/explicit.exp: complete unique file name (timeout)
FAIL: gdb.linespec/explicit.exp: complete non-unique file name (timeout)
The timeouts were caused by an attempt to match a bell character (x07) that
doesn't show up on my particular test setup.
The bell character is output whenever one tries to complete a pattern and there
are multiple possible matches. When there is only one possible match, GDB will
complete the input pattern without outputting the bell character.
The reason for the discrepancy in this test's behavior is due to the use of
"main" for a unique name test.
On glibc-based systems, GDB may notice the "main_arena" symbol, which is
a data global part of glibc's malloc implementation. Therefore a bell character
will be output because we have a couple possible completion matches.
GDB should not be outputting such a data symbol as a possible match, but this
problem may/will be addressed in a future change and is besides the point of
this particular change.
On systems that are not based on glibc, GDB will not see any other possible
matches for completing "main", so there will be no bell characters.
The use of main is a bit fragile though, so the patch adds a new local function
with a name that has a greater chance of being unique and adjusts the test to
iuse it.
I've also added the regular expression switch (-re) to all the
gdb_test_multiple calls that were missing it. Hopefully this will reduce the
chances of someone wasting time trying to match a regular expression (a much
more common use case) when, in reality, the pattern is supposed to be matched
literally.
gdb/testsuite/ChangeLog
2017-02-13 Luis Machado <lgustavo@codesourcery.com>
* gdb.linespec/explicit.c (my_unique_function_name): New function.
(main): Call my_unique_function_name.
* gdb.linespec/explicit.exp: Use my_unique_function_name to test
completion of patterns with a single match.
Add missing -re switches to gdb_test_multiple calls.
Luis Machado [Mon, 13 Feb 2017 13:12:17 +0000 (07:12 -0600)]
Make gdb.arch/i386-biarch-core.exp more robust
This test attempts to load a x86 core file no matter what target
architectures the tested GDB supports. If GDB doesn't know how to handle
a i386 target, it is very likely the core file will not be recognized.
In this case we should still attempt to load a core file to make sure GDB
doesn't crash or throws an internal error. But we should not proceed to
try to read memory unconditionally.
This patch makes the test check for proper i386 arch support in GDB and bails
out if i386 is not supported and the core file format is not recognized.
This addresses the spurious aarch64-elf failures i'm seeing for this test.
gdb/testsuite/ChangeLog:
2017-02-13 Luis Machado <lgustavo@codesourcery.com>
* gdb.arch/i386-biarch-core.exp: Check for i386 arch support and
return if core file is not recognized.
Nick Clifton [Mon, 13 Feb 2017 13:08:32 +0000 (13:08 +0000)]
Fix readelf writing to illegal addresses whilst processing corrupt input files containing symbol-difference relocations.
PR binutils/21137
* readelf.c (target_specific_reloc_handling): Add end parameter.
Check for buffer overflow before writing relocated values.
(apply_relocations): Pass end to target_specific_reloc_handling.
Mike Frysinger [Mon, 13 Feb 2017 05:12:35 +0000 (00:12 -0500)]
sim: use ARRAY_SIZE instead of ad-hoc sizeof calculations
GDB Administrator [Mon, 13 Feb 2017 00:00:29 +0000 (00:00 +0000)]
Automatic date update in version.in
GDB Administrator [Sun, 12 Feb 2017 00:00:23 +0000 (00:00 +0000)]
Automatic date update in version.in
Alan Modra [Sat, 11 Feb 2017 06:47:59 +0000 (17:17 +1030)]
Fix use after free in cgen instruction lookup
* cgen-opc.c (cgen_lookup_insn): Delete buf and base_insn temps.
Use insn_bytes_value and insn_int_value directly instead. Don't
free allocated memory until function exit.
GDB Administrator [Sat, 11 Feb 2017 00:00:30 +0000 (00:00 +0000)]
Automatic date update in version.in
Simon Marchi [Fri, 10 Feb 2017 21:29:50 +0000 (16:29 -0500)]
Do not send queries on secondary UIs
This is a follow-up to
https://sourceware.org/ml/gdb-patches/2017-02/msg00261.html
This patch restricts queries to the main UI, which allows to avoid two
different problems.
The first one is that GDB is issuing queries on secondary MI channels
for which a TTY is allocated. The second one is that GDB is not able to
handle queries on two (CLI) UIs simultaneously. Restricting queries to
the main UI allows to bypass these two problems.
More details on how/why these two problems happen:
1. Queries on secondary MI UI
The current criterion to decide if we should query the user is whether
the input stream is a TTY. The original way to start GDB in MI mode
from a front-end was to create a subprocess with pipes to its
stdin/stdout. In this case, the input was considered non-interactive
and queries were auto-answered. Now that front-ends can create the MI
channel as a separate UI connected to a dedicated TTY, GDB now
considers this input stream as interactive and sends queries to it.
By restricting queries to the main UI, we make sure we never query on
the secondary MI UI.
2. Simultaneous queries
As Pedro stated it, when you have two queries on two different CLI UIs
at the same time, you end up with the following pseudo stack:
#0 gdb_readline_wrapper
#1 defaulted_query // for UI #2
#2 handle_command
#3 execute_command ("handle SIGTRAP" ....
#4 stdin_event_handler // input on UI #2
#5 gdb_do_one_event
#7 gdb_readline_wrapper
#8 defaulted_query // for UI #1
#9 handle_command
#10 execute_command ("handle SIGINT" ....
#11 stdin_event_handler // input on UI #1
#12 gdb_do_one_event
#13 gdb_readline_wrapper
trying to answer the query on UI #1 will therefore answer for UI #2.
By restricting the queries to the main UI, we ensure that there will
never be more than one pending query, since you can't have two queries
on a UI at the same time.
I added a snippet to gdb.base/new-ui.exp to verify that we get a query
on the main UI, but that we don't on the secondary one (or, more
precisely, that it gets auto-answered).
gdb/ChangeLog:
* utils.c (defaulted_query): Don't query on secondary UIs.
gdb/testsuite/ChangeLog:
* gdb.base/new-ui.exp (do_test): Test queries behavior on main
and extra UIs.
Simon Marchi [Fri, 10 Feb 2017 21:29:45 +0000 (16:29 -0500)]
new-ui.exp: Use proc_with_prefix
gdb/testsuite/ChangeLog:
* gdb.base/new-ui.exp (do_test, do_test_invalid_args): Use
proc_with_prefix.
Tom Tromey [Fri, 10 Feb 2017 20:09:23 +0000 (13:09 -0700)]
Remove unused variable in rust-lang.c
I found another unused "cleanup" local variable, this time in
rust-lang.c. This patch removes it. Committing as obvious.
gdb/ChangeLog
2017-02-10 Tom Tromey <tom@tromey.com>
* rust-lang.c (rust_get_disr_info): Remove unused variable.
Tom Tromey [Thu, 9 Feb 2017 20:39:32 +0000 (13:39 -0700)]
Fix Python test to use lowercase command
While testing this series I saw some errors from the Python test
suite. There were a couple of tests using "P" as a command; this
changes them to "p".
gdb/testsuite/ChangeLog
2017-02-10 Tom Tromey <tom@tromey.com>
* gdb.python/py-xmethods.exp: Use "p" command, not "P".
Tom Tromey [Thu, 9 Feb 2017 20:32:48 +0000 (13:32 -0700)]
Remove unnecessary local variables
I found an unused local variables in a couple of places in the Python
code; this removes them.
gdb/ChangeLog
2017-02-10 Tom Tromey <tom@tromey.com>
* python/py-value.c (valpy_richcompare_throw): Remove unnecessary
"cleanup" local.
* python/py-type.c (typy_legacy_template_argument): Remove
unnecessary "cleanup" local.
Tom Tromey [Thu, 12 Jan 2017 15:59:26 +0000 (08:59 -0700)]
Remove some gotos from Python
This patch slightly refactors a couple of spots in the Python code to
avoid some gotos.
gdb/ChangeLog
2017-02-10 Tom Tromey <tom@tromey.com>
* python/python.c (do_start_initialization): New function, from
_initialize_python.
(_initialize_python): Call do_start_initialization.
* python/py-linetable.c (ltpy_iternext): Use explicit returns, not
goto.
Tom Tromey [Thu, 12 Jan 2017 14:46:07 +0000 (07:46 -0700)]
Change one more spot to use gdbpy_ref
This patch changes one more spot in the Python layer to use gdbpy_ref.
gdb/ChangeLog
2017-02-10 Tom Tromey <tom@tromey.com>
* python/py-prettyprint.c (pretty_print_one_value): Use
gdbpy_ref.
Tom Tromey [Wed, 11 Jan 2017 23:28:43 +0000 (16:28 -0700)]
Use gdbpy_ref to simplify some logic
This uses the new gdbpy_ref template to simplify logic in various
parts of the Python layer; for example removing repeated error code or
removing gotos.
gdb/ChangeLog
2017-02-10 Tom Tromey <tom@tromey.com>
* python/py-cmd.c (cmdpy_destroyer): Use gdbpy_ref.
* python/py-breakpoint.c (gdbpy_breakpoint_deleted): Use
gdbpy_ref.
* python/py-type.c (field_new): Use gdbpy_ref.
* python/py-symtab.c (symtab_and_line_to_sal_object): Use
gdbpy_ref.
* python/py-progspace.c (pspy_new): Use gdbpy_ref.
(py_free_pspace): Likewise.
(pspace_to_pspace_object): Likewise.
* python/py-objfile.c (objfpy_new): Use gdbpy_ref.
(py_free_objfile): Likewise.
(objfile_to_objfile_object): Likewise.
* python/py-inferior.c (delete_thread_object): Use
gdbpy_ref.
(infpy_read_memory): Likewise.
(py_free_inferior): Likewise.
* python/py-evtregistry.c (create_eventregistry_object): Use
gdbpy_ref.
* python/py-event.c (create_event_object): Use gdbpy_ref.
Tom Tromey [Thu, 9 Feb 2017 20:16:36 +0000 (13:16 -0700)]
Turn gdbpy_ref into a template
This turns gdbpy_ref into a template class, so that it can be used to
wrap subclasses of PyObject. The default argument remains PyObject;
and this necessitated renaming uses of "gdbpy_ref" to "gdbpy_ref<>".
gdb/ChangeLog
2017-02-10 Tom Tromey <tom@tromey.com>
* python/py-ref.h (gdbpy_ref_policy): Now a template.
(gdbpy_ref): Now a template; allow subclasses of PyObject to be
used.
* python/py-arch.c, python/py-bpevent.c, python/py-breakpoint.c,
python/py-cmd.c, python/py-continueevent.c, python/py-event.c,
python/py-exitedevent.c, python/py-finishbreakpoint.c,
python/py-framefilter.c, python/py-function.c,
python/py-inferior.c, python/py-infevents.c,
python/py-linetable.c, python/py-newobjfileevent.c,
python/py-param.c, python/py-prettyprint.c, python/py-ref.h,
python/py-signalevent.c, python/py-stopevent.c,
python/py-symbol.c, python/py-threadevent.c, python/py-type.c,
python/py-unwind.c, python/py-utils.c, python/py-value.c,
python/py-varobj.c, python/py-xmethods.c, python/python.c,
varobj.c: Change gdbpy_ref to gdbpy_ref<>.
Tom Tromey [Wed, 11 Jan 2017 06:34:22 +0000 (23:34 -0700)]
Remove some ui_out-related cleanups from Python
This patch introduces a bit of infrastructure -- namely, a minimal
std::optional analogue called gdb::optional, and an RAII template
class that works like make_cleanup_ui_out_tuple_begin_end or
make_cleanup_ui_out_list_begin_end -- and then uses these in the
Python code. This removes a number of cleanups and generally
simplifies this code.
std::optional is only available in C++17. Normally I would have had
this code check __cplusplus, but my gcc apparently isn't new enough to
find <optional>, even with -std=c++1z; so, because I could not test
it, the patch does not do this.
gdb/ChangeLog
2017-02-10 Tom Tromey <tom@tromey.com>
* ui-out.h (ui_out_emit_type): New class.
(ui_out_emit_tuple, ui_out_emit_list): New typedefs.
* python/py-framefilter.c (py_print_single_arg): Use gdb::optional
and ui_out_emit_tuple.
(enumerate_locals): Likewise.
(py_mi_print_variables, py_print_locals, py_print_args): Use
ui_out_emit_list.
(py_print_frame): Use gdb::optional, ui_out_emit_tuple,
ui_out_emit_list.
* common/gdb_optional.h: New file.
Martin Galvan [Fri, 10 Feb 2017 16:46:56 +0000 (13:46 -0300)]
gdb/MAINTAINERS: Update my e-mail address
gdb/ChangeLog:
2017-02-10 Martin Galvan <martingalvan@sourceware.org>
* MAINTAINERS (Write After Approval): Update my e-mail address.
Martin Galvan [Fri, 10 Feb 2017 16:37:31 +0000 (13:37 -0300)]
PR gdb/21122: Fix documentation mistakes for breakpoint commands
Currently, the breakpoint documentation refers to some commands taking breakpoint
"ranges" as arguments. We discussed this with Pedro and concluded that it would
be more accurate to speak in terms of breakpoint "lists", whose elements can optionally
be ranges. I also fixed a couple of minor mistakes in the docs.
gdb/ChangeLog:
* breakpoint.c (_initialize_breakpoint): Update the help description
of the 'commands' command to indicate that it takes a list argument.
gdb/doc/ChangeLog:
* gdb.texinfo (Breakpoints): Reword documentation to speak in terms of
space-separated breakpoint lists. Also add a missing @table command
and @cindex for breakpoint lists.
gdb/testsuite/ChangeLog:
* gdb.base/help.exp: Update match pattern for testing 'help commands'.
Nicholas Piggin [Fri, 10 Feb 2017 04:18:23 +0000 (14:18 +1000)]
POWER9 add scv/rfscv instruction support
opcodes/
* ppc-opc.c (powerpc_opcodes) <scv, rfscv>: New mnemonics.
gas/
* testsuite/gas/ppc/power9.d <scv, rfscv>: New tests.
GDB Administrator [Fri, 10 Feb 2017 00:00:16 +0000 (00:00 +0000)]
Automatic date update in version.in
Simon Marchi [Thu, 9 Feb 2017 21:24:40 +0000 (16:24 -0500)]
Remove return in function returning void
gdb/ChangeLog:
* interps.c (current_interp_set_logging): Remove "return".
Gary Benson [Thu, 9 Feb 2017 15:35:33 +0000 (15:35 +0000)]
Fix NULL pointer dereference
This commit fixes a segmentation fault on tab completion when
certain debuginfo is installed:
https://bugzilla.redhat.com/show_bug.cgi?id=
1398387
gdb/ChangeLog:
* symtab.c (add_symtab_completions): Prevent NULL pointer
dereference.
GDB Administrator [Thu, 9 Feb 2017 00:00:27 +0000 (00:00 +0000)]
Automatic date update in version.in
Andrew Burgess [Thu, 26 Jan 2017 10:33:23 +0000 (10:33 +0000)]
ld/arc: Change default linker emulation for nps400
If we are configuring for an arc/linux target, and --with-cpu=nps400 is
used at configure time then change the default linker emulation to the
nps specific version. All of the alternative linker emulations are
still available using the -mNAME option for ld.
ld/ChangeLog:
* configure.tgt (arc*-*-linux*): Change the default linker
emulation based on --with-cpu selection.
* NEWS: Mention new configuration option.
Pedro Alves [Wed, 8 Feb 2017 18:08:18 +0000 (18:08 +0000)]
Eliminate interp::quiet_p
This commit removes interp::quiet_p / interp_quiet_p /
interp_set_quiet, because AFAICS, it doesn't really do anything.
interp_quiet is only ever checked inside interp_set nowadays:
if (!first_time && !interp_quiet_p (interp))
{
xsnprintf (buffer, sizeof (buffer),
"Switching to interpreter \"%.24s\".\n", interp->name);
current_uiout->text (buffer);
}
I did a bit of archaelogy, and found that back in
4a8f6654 (2003), it
was also called in another place, to decide whether to print the CLI
prompt.
AFAICS, that condition is always false today, making that if/then
block always dead code. If we remove that code, then there are no
interp_quiet_p uses left in the tree, so we can remove it all.
There are two paths that lead to interp_set calls:
#1 - When installing the top level interpreter. In this case,
FIRST_TIME is true.
#2 - In interpreter_exec_cmd. In this case, the interpreter is always
set quiet before interp_set is called.
Grepping a gdb.log of an x86_64 GNU/Linux run for "Switching to
interpreter" (before this patch) doesn't find any hits.
I suspect the intention of this message was to support something like
a "set interpreter ..." command that would change the interpreter
permanently. But there's no such command.
Tested on x86_64 Fedora 23.
gdb/ChangeLog:
2017-02-08 Pedro Alves <palves@redhat.com>
* interps.c (interp::interp): Remove reference to quiet_p.
(interp_set): Make static. Remove dead "Switching to" output
code.
(interp_quiet_p, interp_set_quiet): Delete.
(interpreter_exec_cmd): Don't set the interpreter quiet.
* interps.h (interp_quiet_p): Make static.
(class interp) <quiet_p>: Remove field
Jerome Guitton [Tue, 10 Jan 2017 14:15:53 +0000 (15:15 +0100)]
Command abbreviation in define
When defining a new macro, "command" is not recognized as an alias for
"commands":
(gdb) define breakmain
Type commands for definition of "breakmain".
End with a line saying just "end".
>break main
>command
>echo "IN MAIN\n"
>end
(gdb)
There is a special case for while-stepping, where 'ws' and 'stepping' are
recognized explicitely. Instead of adding more special cases, this change
uses cli-decode.
gdb/ChangeLog:
* cli/cli-decode.c (find_command_name_length): Make it extern.
* cli/cli-decode.h (find_command_name_length): Declare.
* cli/cli-script.c (command_name_equals, line_first_arg):
New functions.
(process_next_line): Use cli-decode to parse command names.
(build_command_line): Make args a constant pointer.
gdb/testsuite/ChangeLog:
* gdb.base/define.exp: Add test for command abbreviations
in define.
Jerome Guitton [Fri, 27 Jan 2017 16:06:32 +0000 (17:06 +0100)]
Command names: make them case sensitive
Case-insensitive search for command names is an obscure undocumented
feature, which seems to be unused, is not tested and not quite
consistent. Remove it.
gdb/ChangeLog:
* cli-decode.c (lookup_cmd_1, lookup_cmd_composition):
Remove case-insensitive search.
Andrew Waterman [Mon, 23 Jan 2017 20:58:30 +0000 (12:58 -0800)]
Fix segfault when .plt section does not exist
bfd/ChangeLog
2017-02-07 Andrew Waterman <andrew@sifive.com>
* elfnn-riscv.c (riscv_elf_finish_dynamic_sections): Only write PLT
entry size if PLT header is written.
GDB Administrator [Wed, 8 Feb 2017 00:00:23 +0000 (00:00 +0000)]
Automatic date update in version.in
Jose E. Marchesi [Tue, 7 Feb 2017 21:21:54 +0000 (13:21 -0800)]
gdb: fix ARI warning in sparc-tdep.c
gdb/ChangeLog:
2017-02-07 Jose E. Marchesi <jose.marchesi@oracle.com>
* sparc-tdep.c (sparc32_gdbarch_init): Do not place a + operator
at the end of the line.
Sheldon Lobo [Tue, 7 Feb 2017 14:05:59 +0000 (06:05 -0800)]
bfd: Fix objdump --dynamic-reloc for SPARC 64-bit to show symbol names.
Fixes ld/testsuite/ld-elf/shared.exp "Build libpr16496b.so".
The root cause is in bfd/elf64-sparc.c, elf64_sparc_slurp_one_reloc_table(),
bfd_get_symcount() was used for dynamic mode as well. The fix is to use
bfd_get_dynamic_symcount().
This has been tested with sparc64-linux-gnu, and it does not introduce any
regressions.
bfd/ChangeLog:
2017-02-06 Sheldon Lobo <sheldon.lobo@oracle.com>
Fix sparc64 dynamic relocation processing to use the dynamic
symbol count.
* elf64-sparc.c (elf64_sparc_slurp_one_reloc_table): Use 'dynamic'
to determine if bfd_get_symcount() or bfd_get_dynamic_symcount()
should be used.
GDB Administrator [Tue, 7 Feb 2017 00:00:25 +0000 (00:00 +0000)]
Automatic date update in version.in
Jiong Wang [Thu, 2 Feb 2017 17:15:26 +0000 (17:15 +0000)]
[ld, testsuite] Don't print to stdout for "readelf -w" to avoid buffer overflow
ld/
* testsuite/ld-elf/compress.exp: Don't print to stdout for all
"readelf -w".
Claudiu Zissulescu [Mon, 6 Feb 2017 10:26:13 +0000 (11:26 +0100)]
[ARC] Provide an interface to decode ARC instructions.
gas/
2017-02-06 Claudiu Zissulescu <claziss@synopsys.com>
* config/tc-arc.c (parse_opcode_flags): Ignore implicit flags.
include/
2017-02-06 Claudiu Zissulescu <claziss@synopsys.com>
Anton Kolesov <anton.kolesov@synopsys.com>
* opcode/arc.h (insn_class_t): Add ENTER, LEAVE, POP, PUSH, BBIT0,
BBIT1, BI, BIH, BRCC, EI, JLI, and SUB instruction classes.
(flag_class_t): Add F_CLASS_WB, F_CLASS_ZZ, and F_CLASS_IMPLICIT
flag classes.
opcode/
2017-02-06 Claudiu Zissulescu <claziss@synopsys.com>
Anton Kolesov <anton.kolesov@synopsys.com>
* arc-dis.c (arc_disassemble_info): New structure.
(init_arc_disasm_info): New function.
(find_format_from_table): Ignore implicit flags.
(find_format): Update dissassembler private data.
(print_flags): Likewise.
(print_insn_arc): Likewise.
(arc_opcode_to_insn_type): Consider the new added instruction
classes.
(arcAnalyzeInstr): Remove.
(arc_insn_decode): New function.
* arc-dis.h (arc_ldst_writeback_mode): New enum.
(arc_ldst_data_size): Likewise.
(arc_condition_code): Likewise.
(arc_operand_kind): Likewise.
(arc_insn_kind): New struct.
(arc_instruction): Likewise.
(arc_insn_decode): Declare function.
(ARC_Debugger_OperandType): Deleted.
(Flow): Likewise.
(NullifyMode): Likewise.
(allOperandsSize): Likewise.
(arcDisState): Likewise.
(arcAnalyzeInstr): Likewise.
* arc-dis.c (arc_opcode_to_insn_type): Handle newly introduced
insn_class_t enums.
* arc-opc.c (F_SIZED): New define.
(C_CC_EQ, C_CC_GE, C_CC_GT, C_CC_HI, C_CC_HS): Likewise.
(C_CC_LE, C_CC_LO, C_CC_LS, C_CC_LT, C_CC_NE): Likewise.
(C_CC_NE, C_AA_AB, C_AA_AW, C_ZZ_D, C_ZZ_H, C_ZZ_B): Likewise.
(arc_flag_classes): Add F_CLASS_COND/F_CLASS_IMPLICIT flags.
* opcodes/arc-tbl.h: Update instructions to include new
F_CLASS_IMPLICIT flags.
(bbit0, lp): Change class.
(bbit1, bi, bih, br*, ei_s, jli_s): Likewsie
Luis Machado [Mon, 6 Feb 2017 09:12:00 +0000 (03:12 -0600)]
[BZ 21005] Add support for Intel 64 rdrand and rdseed record/replay
This patch addresses BZ 21005, which is gdb failing to recognize an rdrand
instruction.
It enables support for both rdrand and rdseed and handles extended register
addressing (R8~R15) for 16-bit, 32-bit and 64-bit.
gdb/ChangeLog
2017-02-06 Luis Machado <lgustavo@codesourcery.com>
* NEWS: Mention support for record/replay of Intel 64 rdrand and
rdseed instructions.
i386-tdep.c (i386_process_record): Handle Intel 64 rdrand and rseed.
gdb/testsuite/ChangeLog:
2017-02-06 Luis Machado <lgustavo@codesourcery.com>
* gdb.reverse/insn-reverse.c: Include insn-reverse-x86.c.
* gdb.reverse/insn-reverse-x86.c: New file.
Ivo Raisr [Mon, 6 Feb 2017 07:44:03 +0000 (23:44 -0800)]
gdb: provide and use sparc{32,64} target description XML files.
gdb/ChangeLog:
2017-02-06 Ivo Raisr <ivo.raisr@oracle.com>
PR tdep/20936
Provide and use sparc32 and sparc64 target description XML files.
* features/sparc/sparc32-cp0.xml, features/sparc/sparc32-cpu.xml,
features/sparc/sparc32-fpu.xml: New files for sparc 32-bit.
* features/sparc/sparc64-cp0.xml, features/sparc/sparc64-cpu.xml,
features/sparc/sparc64-fpu.xml: New files for sparc 64-bit.
* features/sparc/sparc32-solaris.xml: New file.
* features/sparc/sparc64-solaris.xml: New file.
* features/sparc/sparc32-solaris.c: Generated.
* features/sparc/sparc64-solaris.c: Generated.
* sparc-tdep.h: Account for differences in target descriptions.
* sparc-tdep.c (sparc32_register_name): Use target provided registers.
(sparc32_register_type): Use target provided registers.
(validate_tdesc_registers): New function.
(sparc32_gdbarch_init): Use tdesc_has_registers.
Set pseudoregister functions.
* sparc64-tdep.c (sparc64_register_name): Use target provided registers.
(sparc64_register_type): Use target provided registers.
(sparc64_init_abi): Set pseudoregister functions.
gdb/doc/ChangeLog:
2017-02-06 Ivo Raisr <ivo.raisr@oracle.com>
PR tdep/20936
* gdb.texinfo: (Standard Target Features): Document SPARC features.
(Sparc Features): New node.
gdb/testsuite/ChangeLog:
2017-02-06 Ivo Raisr <ivo.raisr@oracle.com>
PR tdep/20936
* gdb.xml/tdesc-regs.exp: Provide sparc core registers for the tests.
GDB Administrator [Mon, 6 Feb 2017 00:00:21 +0000 (00:00 +0000)]
Automatic date update in version.in
GDB Administrator [Sun, 5 Feb 2017 00:00:20 +0000 (00:00 +0000)]
Automatic date update in version.in
Tom Tromey [Sat, 4 Feb 2017 05:11:46 +0000 (22:11 -0700)]
Fix ptype of single-member Rust enums
While looking into PR rust/21097, I found that ptype of a
single-element enum in Rust did not always format the result properly.
In particular, it would leave out the members of a tuple struct.
Further testing showed that it also did the wrong thing for ordinary
struct members as well.
This patch fixes these problems. I'm marking it as being associated
with the PR, since that is where the discovery was made; but this
doesn't actually fix that PR (which I think ultimately is due to a
Rust compiler bug).
Built and regtested on x86-64 Fedora 25, using the system Rust
compiler. I'm checking this in.
2017-02-03 Tom Tromey <tom@tromey.com>
PR rust/21097:
* rust-lang.c (rust_print_type) <TYPE_CODE_UNION>: Handle enums
with a single member.
2017-02-03 Tom Tromey <tom@tromey.com>
PR rust/21097:
* gdb.rust/simple.exp: Add new tests.
projects / binutils-gdb.git / log