Nick Clifton [Fri, 30 Nov 2018 11:45:33 +0000 (11:45 +0000)]
Fix a memory exhaustion bug when attempting to allocate room for an impossible number of program headers.
* elfcode.h (elf_object_p): Check for corrupt input files with
more program headers than can actually fit in the file.
Nick Clifton [Fri, 30 Nov 2018 11:43:12 +0000 (11:43 +0000)]
Remove an abort in the bfd library and add a check for an integer overflow when mapping sections to segments.
PR 23932
* elf.c (IS_CONTAINED_BY_LMA): Add a check for a negative section
size.
(rewrite_elf_program_header): If no sections are mapped into a
segment return an error.
Alan Modra [Fri, 30 Nov 2018 05:04:11 +0000 (15:34 +1030)]
PR23937, powerpc64le local ifunc IRELATIVE relocs are wrong
IFUNC resolvers must always be called via their global entry point.
They will be called from ld.so rather than from the local executable.
PR 23937
bfd/
* elf64-ppc.c (write_plt_relocs_for_local_syms): Don't add local
entry offset for ifuncs.
ld/
* testsuite/ld-powerpc/pr23937.d,
* testsuite/ld-powerpc/pr23937.s: New test.
* testsuite/ld-powerpc/powerpc.exp: Run it.
GDB Administrator [Fri, 30 Nov 2018 00:00:41 +0000 (00:00 +0000)]
Automatic date update in version.in
Philippe Waroquiers [Tue, 27 Nov 2018 23:22:29 +0000 (00:22 +0100)]
Fix leak in forward-search
Valgrind reports the below leak.
Fix the leak by using xrealloc, even for the first allocation,
as buf is static.
==29158== 5,888 bytes in 23 blocks are definitely lost in loss record 3,028 of 3,149
==29158== at 0x4C2BE2D: malloc (vg_replace_malloc.c:299)
==29158== by 0x41B557: xmalloc (common-utils.c:44)
==29158== by 0x60B7D9: forward_search_command(char const*, int) (source.c:1563)
==29158== by 0x40BA68: cmd_func(cmd_list_element*, char const*, int) (cli-decode.c:1888)
==29158== by 0x665300: execute_command(char const*, int) (top.c:630)
...
gdb/ChangeLog
2018-11-29 Philippe Waroquiers <philippe.waroquiers@skynet.be>
* source.c (forward_search_command): Fix leak by using
xrealloc even for the first allocation in the loop, as buf
is static.
Rajendra SY [Thu, 29 Nov 2018 21:26:31 +0000 (13:26 -0800)]
Implement the "gdb_signal_to/from_target" gdbarch methods for FreeBSD.
This fixes failures in the gdb.base/exitsignal.exp test.
gdb/ChangeLog:
PR gdb/23093
* gdb/fbsd-tdep.c (fbsd_gdb_signal_from_target)
(fbsd_gdb_signal_to_target): New.
(fbsd_init_abi): Install gdbarch "signal_from_target" and
"signal_to_target" methods.
Jim Wilson [Thu, 29 Nov 2018 21:05:25 +0000 (13:05 -0800)]
RISC-V: Add missing c.unimp instruction.
opcodes/
* riscv-opc.c (unimp): Mark compressed unimp as INSN_ALIAS.
(c.unimp): New.
Tom Tromey [Wed, 28 Nov 2018 17:34:15 +0000 (10:34 -0700)]
Avoid buffer overflow in value_x_unop
Commit
6b1747cd1 ("invoke_xmethod & array_view") contains this change:
- argvec = (struct value **) alloca (sizeof (struct value *) * 4);
+ value *argvec_storage[3];
+ gdb::array_view<value *> argvec = argvec_storage;
However, value_x_unop still does:
argvec[2] = value_from_longest (builtin_type (gdbarch)->builtin_int, 0);
argvec[3] = 0;
This triggers an error with -fsanitize=address from userdef.exp:
ERROR: AddressSanitizer: stack-buffer-overflow on address 0x7ffdcf185068 at pc 0x000000e4f912 bp 0x7ffdcf184d80 sp 0x7ffdcf184d70
WRITE of size 8 at 0x7ffdcf185068 thread T0
#0 0xe4f911 in value_x_unop(value*, exp_opcode, noside) ../../binutils-gdb/gdb/valarith.c:557
[...]
I think the two assignments to argvec[3] should just be removed, and
that this was intended in the earlier patch but just missed.
This passes userdef.exp with -fsanitize=address.
gdb/ChangeLog
2018-11-29 Tom Tromey <tom@tromey.com>
* valarith.c (value_x_unop): Don't set argvec[3].
Tom Tromey [Mon, 30 Jul 2018 01:21:01 +0000 (19:21 -0600)]
Fix use-after-free in gdbserver
-fsanitize=address pointed out a use-after-free in gdbserver. In
particular, handle_detach could reference "process" after it was
deleted by detach_inferior. Avoiding this also necessitated changing
target_ops::join to take a pid rather than a process_info*.
Tested by the buildbot using a few of the gdbserver builders.
gdb/gdbserver/ChangeLog
2018-11-29 Tom Tromey <tom@tromey.com>
* win32-low.c (win32_join): Take pid, not process.
* target.h (struct target_ops) <join>: Change argument type.
(join_inferior): Change argument name.
* spu-low.c (spu_join): Take pid, not process.
* server.c (handle_detach): Preserve pid before destroying
process.
* lynx-low.c (lynx_join): Take pid, not process.
* linux-low.c (linux_join): Take pid, not process.
Thomas Preud'homme [Thu, 29 Nov 2018 13:42:49 +0000 (13:42 +0000)]
Document purpose of each ld statement lists
When discovering the statement lists via their header variable
statement_list, file_chain and input_file_chain it can be confusing to
figure out what they are for. They can point to the same initial
statement and the relation between the next field they use is not
obvious from the name.
This commit adds comment for each of those statement list header to
explain what they are for and what next field they use. It also rewrite
the comment for the next fields to simply redirect the reader to the
list header to avoid duplication of documentation.
2018-11-29 Thomas Preud'homme <thomas.preudhomme@linaro.org>
ld/
* ldlang.c (statement_list): Document purpose and what next field it
uses.
(file_chain): Likewise.
(input_file_chain): Likewise.
* ldlang.h (lang_statement_header_type): Document statement list header
the next pointer correspond to.
(lang_statement_header_type): Replace comment for next and
next_real_file field to refer the reader to their corresponding
statement list header.
H.J. Lu [Thu, 29 Nov 2018 12:44:20 +0000 (04:44 -0800)]
elf: Don't merge .note.gnu.property section in IR
.note.gnu.property section in IR inputs should be ignored. Don't
merge them.
PR ld/23929
* elf-properties.c (_bfd_elf_link_setup_gnu_properties): Don't
merge .note.gnu.property section in IR inputs.
Nick Clifton [Thu, 29 Nov 2018 10:57:54 +0000 (10:57 +0000)]
objdump: Fix check for corrupt reloc information, to allow for the fact that PDP11 relocs are bigger when in internal format.
PR 23931
* objdump.c (dump_relocs_in_section): When checking for an
unreasonable amount of relocs in a bfd, allow for the fact that
the internal representation of a reloc may be bigger than the
external representation.
GDB Administrator [Thu, 29 Nov 2018 00:00:26 +0000 (00:00 +0000)]
Automatic date update in version.in
GDB Administrator [Wed, 28 Nov 2018 00:00:18 +0000 (00:00 +0000)]
Automatic date update in version.in
Jim Wilson [Tue, 27 Nov 2018 19:29:23 +0000 (11:29 -0800)]
RISC-V: Add .insn CA support.
gas/
* config/tc-riscv.c (validate_riscv_insn) <'F'>: Add support for CF6
and CF2 operands.
(riscv_ip) <'F'>: Likewise.
* doc/c-riscv.texi (RISC-V-Formats): Add func6 abbreviation. Use rs2
instead of rs1 in CR description. Add CA docs.
* gas/testsuite/riscv/insn.s: Add use of .insn ca.
* gas/testsuite/riscv/insn.d: Update to match.
include/
* opcode/riscv.h (OP_MASK_CFUNCT6, OP_SH_CFUNCT6): New.
(OP_MASK_CFUNCT2, OP_SH_CFUNCT2): New.
opcodes/
* riscv-opc.c (ciw): Fix whitespace to align columns.
(ca): New.
Thomas Preud'homme [Tue, 27 Nov 2018 18:27:35 +0000 (18:27 +0000)]
[ARM] Update knowledge of bfd architectures
Commit
c0c468d562649df0f695737262b6230b7a56a4bb updated bfd's knowledge
of Arm architectures to Armv5TEJ and later but missed the list of CPUs
recognized by objdump -d -m<cpu>.
.note.gnu.arm.ident related code is intentionally not updated as build
attributes are a better mechanism to express the ISA in a file. However
this patch adds tests for the existing code since no existing testcase
cover those codepaths. Since I've only ever managed for
bfd_arm_get_mach_from_notes () to have an effect by using objcopy on
a file with a note but no Arm build attribute, the tests make use of
both objcopy actions supported by run_dump_test which requires to have a
ld line as well.
Note that the CPU list in bfd/cpu-arm.c was simply copied over from
GAS' CPU list but sorted alphabetically as already done for existing
entries.
2018-11-27 Thomas Preud'homme <thomas.preudhomme@linaro.org>
bfd/
* cpu-arm.c (processors): Add processors known to GAS but missing here
and reindent.
(bfd_arm_update_notes): Add comment explaining why the list of
architectures in the switch should not be updated.
(architectures): Likewise.
gas/
* testsuite/gas/arm/cpu-arm1020.d: New testcase.
* testsuite/gas/arm/cpu-arm1020e.d: Likewise.
* testsuite/gas/arm/cpu-arm1020t.d: Likewise.
* testsuite/gas/arm/cpu-arm1022e.d: Likewise.
* testsuite/gas/arm/cpu-arm1026ej-s.d: Likewise.
* testsuite/gas/arm/cpu-arm1026ejs.d: Likewise.
* testsuite/gas/arm/cpu-arm10e.d: Likewise.
* testsuite/gas/arm/cpu-arm10t.d: Likewise.
* testsuite/gas/arm/cpu-arm10tdmi.d: Likewise.
* testsuite/gas/arm/cpu-arm1136j-s.d: Likewise.
* testsuite/gas/arm/cpu-arm1136jf-s.d: Likewise.
* testsuite/gas/arm/cpu-arm1136jfs.d: Likewise.
* testsuite/gas/arm/cpu-arm1136js.d: Likewise.
* testsuite/gas/arm/cpu-arm1156t2-s.d: Likewise.
* testsuite/gas/arm/cpu-arm1156t2f-s.d: Likewise.
* testsuite/gas/arm/cpu-arm1176jz-s.d: Likewise.
* testsuite/gas/arm/cpu-arm1176jzf-s.d: Likewise.
* testsuite/gas/arm/cpu-arm2.d: Likewise.
* testsuite/gas/arm/cpu-arm250.d: Likewise.
* testsuite/gas/arm/cpu-arm3.d: Likewise.
* testsuite/gas/arm/cpu-arm6.d: Likewise.
* testsuite/gas/arm/cpu-arm60.d: Likewise.
* testsuite/gas/arm/cpu-arm600.d: Likewise.
* testsuite/gas/arm/cpu-arm610.d: Likewise.
* testsuite/gas/arm/cpu-arm620.d: Likewise.
* testsuite/gas/arm/cpu-arm7.d: Likewise.
* testsuite/gas/arm/cpu-arm70.d: Likewise.
* testsuite/gas/arm/cpu-arm700.d: Likewise.
* testsuite/gas/arm/cpu-arm700i.d: Likewise.
* testsuite/gas/arm/cpu-arm710.d: Likewise.
* testsuite/gas/arm/cpu-arm7100.d: Likewise.
* testsuite/gas/arm/cpu-arm710c.d: Likewise.
* testsuite/gas/arm/cpu-arm710t.d: Likewise.
* testsuite/gas/arm/cpu-arm720.d: Likewise.
* testsuite/gas/arm/cpu-arm720t.d: Likewise.
* testsuite/gas/arm/cpu-arm740t.d: Likewise.
* testsuite/gas/arm/cpu-arm7500.d: Likewise.
* testsuite/gas/arm/cpu-arm7500fe.d: Likewise.
* testsuite/gas/arm/cpu-arm7d.d: Likewise.
* testsuite/gas/arm/cpu-arm7di.d: Likewise.
* testsuite/gas/arm/cpu-arm7dm.d: Likewise.
* testsuite/gas/arm/cpu-arm7dmi.d: Likewise.
* testsuite/gas/arm/cpu-arm7m.d: Likewise.
* testsuite/gas/arm/cpu-arm7t.d: Likewise.
* testsuite/gas/arm/cpu-arm7tdmi-s.d: Likewise.
* testsuite/gas/arm/cpu-arm7tdmi.d: Likewise.
* testsuite/gas/arm/cpu-arm8.d: Likewise.
* testsuite/gas/arm/cpu-arm810.d: Likewise.
* testsuite/gas/arm/cpu-arm9.d: Likewise.
* testsuite/gas/arm/cpu-arm920.d: Likewise.
* testsuite/gas/arm/cpu-arm920t.d: Likewise.
* testsuite/gas/arm/cpu-arm922t.d: Likewise.
* testsuite/gas/arm/cpu-arm926ej-s.d: Likewise.
* testsuite/gas/arm/cpu-arm926ej.d: Likewise.
* testsuite/gas/arm/cpu-arm926ejs.d: Likewise.
* testsuite/gas/arm/cpu-arm940t.d: Likewise.
* testsuite/gas/arm/cpu-arm946e-r0.d: Likewise.
* testsuite/gas/arm/cpu-arm946e-s.d: Likewise.
* testsuite/gas/arm/cpu-arm946e.d: Likewise.
* testsuite/gas/arm/cpu-arm966e-r0.d: Likewise.
* testsuite/gas/arm/cpu-arm966e-s.d: Likewise.
* testsuite/gas/arm/cpu-arm966e.d: Likewise.
* testsuite/gas/arm/cpu-arm968e-s.d: Likewise.
* testsuite/gas/arm/cpu-arm9e-r0.d: Likewise.
* testsuite/gas/arm/cpu-arm9e.d: Likewise.
* testsuite/gas/arm/cpu-arm9tdmi.d: Likewise.
* testsuite/gas/arm/cpu-arm_any.d: Likewise.
* testsuite/gas/arm/cpu-cortex-a12.d: Likewise.
* testsuite/gas/arm/cpu-cortex-a15.d: Likewise.
* testsuite/gas/arm/cpu-cortex-a17.d: Likewise.
* testsuite/gas/arm/cpu-cortex-a32.d: Likewise.
* testsuite/gas/arm/cpu-cortex-a35.d: Likewise.
* testsuite/gas/arm/cpu-cortex-a5.d: Likewise.
* testsuite/gas/arm/cpu-cortex-a53.d: Likewise.
* testsuite/gas/arm/cpu-cortex-a55.d: Likewise.
* testsuite/gas/arm/cpu-cortex-a57.d: Likewise.
* testsuite/gas/arm/cpu-cortex-a7.d: Likewise.
* testsuite/gas/arm/cpu-cortex-a72.d: Likewise.
* testsuite/gas/arm/cpu-cortex-a73.d: Likewise.
* testsuite/gas/arm/cpu-cortex-a75.d: Likewise.
* testsuite/gas/arm/cpu-cortex-a76.d: Likewise.
* testsuite/gas/arm/cpu-cortex-a8.d: Likewise.
* testsuite/gas/arm/cpu-cortex-a9.d: Likewise.
* testsuite/gas/arm/cpu-cortex-m0.d: Likewise.
* testsuite/gas/arm/cpu-cortex-m0plus.d: Likewise.
* testsuite/gas/arm/cpu-cortex-m1.d: Likewise.
* testsuite/gas/arm/cpu-cortex-m23.d: Likewise.
* testsuite/gas/arm/cpu-cortex-m3.d: Likewise.
* testsuite/gas/arm/cpu-cortex-m33.d: Likewise.
* testsuite/gas/arm/cpu-cortex-m4.d: Likewise.
* testsuite/gas/arm/cpu-cortex-m7.d: Likewise.
* testsuite/gas/arm/cpu-cortex-r4.d: Likewise.
* testsuite/gas/arm/cpu-cortex-r4f.d: Likewise.
* testsuite/gas/arm/cpu-cortex-r5.d: Likewise.
* testsuite/gas/arm/cpu-cortex-r52.d: Likewise.
* testsuite/gas/arm/cpu-cortex-r7.d: Likewise.
* testsuite/gas/arm/cpu-cortex-r8.d: Likewise.
* testsuite/gas/arm/cpu-ep9312.d: Likewise.
* testsuite/gas/arm/cpu-exynos-m1.d: Likewise.
* testsuite/gas/arm/cpu-fa526.d: Likewise.
* testsuite/gas/arm/cpu-fa606te.d: Likewise.
* testsuite/gas/arm/cpu-fa616te.d: Likewise.
* testsuite/gas/arm/cpu-fa626.d: Likewise.
* testsuite/gas/arm/cpu-fa626te.d: Likewise.
* testsuite/gas/arm/cpu-fa726te.d: Likewise.
* testsuite/gas/arm/cpu-fmp626.d: Likewise.
* testsuite/gas/arm/cpu-i80200.d: Likewise.
* testsuite/gas/arm/cpu-iwmmxt.d: Likewise.
* testsuite/gas/arm/cpu-iwmmxt2.d: Likewise.
* testsuite/gas/arm/cpu-marvell-pj4.d: Likewise.
* testsuite/gas/arm/cpu-marvell-whitney.d: Likewise.
* testsuite/gas/arm/cpu-mpcore.d: Likewise.
* testsuite/gas/arm/cpu-mpcorenovfp.d: Likewise.
* testsuite/gas/arm/cpu-sa1.d: Likewise.
* testsuite/gas/arm/cpu-strongarm.d: Likewise.
* testsuite/gas/arm/cpu-strongarm1.d: Likewise.
* testsuite/gas/arm/cpu-strongarm110.d: Likewise.
* testsuite/gas/arm/cpu-strongarm1100.d: Likewise.
* testsuite/gas/arm/cpu-strongarm1110.d: Likewise.
* testsuite/gas/arm/cpu-xgene1.d: Likewise.
* testsuite/gas/arm/cpu-xgene2.d: Likewise.
* testsuite/gas/arm/cpu-xscale.d: Likewise.
* testsuite/gas/arm/nop-asm.s: Likewise.
* testsuite/gas/arm/note-march-armv2.d: Likewise.
* testsuite/gas/arm/note-march-armv2.s: Likewise.
* testsuite/gas/arm/note-march-armv2a.d: Likewise.
* testsuite/gas/arm/note-march-armv2a.s: Likewise.
* testsuite/gas/arm/note-march-armv3.d: Likewise.
* testsuite/gas/arm/note-march-armv3.s: Likewise.
* testsuite/gas/arm/note-march-armv3m.d: Likewise.
* testsuite/gas/arm/note-march-armv3m.s: Likewise.
* testsuite/gas/arm/note-march-armv4.d: Likewise.
* testsuite/gas/arm/note-march-armv4.s: Likewise.
* testsuite/gas/arm/note-march-armv4t.d: Likewise.
* testsuite/gas/arm/note-march-armv4t.s: Likewise.
* testsuite/gas/arm/note-march-armv5.d: Likewise.
* testsuite/gas/arm/note-march-armv5.s: Likewise.
* testsuite/gas/arm/note-march-armv5t.d: Likewise.
* testsuite/gas/arm/note-march-armv5t.s: Likewise.
* testsuite/gas/arm/note-march-armv5te.d: Likewise.
* testsuite/gas/arm/note-march-armv5te.d: Likewise.
* testsuite/gas/arm/note-march-ep9312.d: Likewise.
* testsuite/gas/arm/note-march-ep9312.s: Likewise.
* testsuite/gas/arm/note-march-iwmmxt.d: Likewise.
* testsuite/gas/arm/note-march-iwmmxt.s: Likewise.
* testsuite/gas/arm/note-march-iwmmxt2.d: Likewise.
* testsuite/gas/arm/note-march-iwmmxt2.s: Likewise.
* testsuite/gas/arm/note-march-xscale.d: Likewise.
* testsuite/gas/arm/note-march-xscale.s: Likewise.
Maciej W. Rozycki [Tue, 27 Nov 2018 16:34:03 +0000 (16:34 +0000)]
MIPS/LD: Accept high-part relocations in PIC code with absolute symbols
Accept R_MIPS_HI16, R_MIPS_HIGHER and R_MIPS_HIGHEST relocations and
their compressed counterparts in PIC code where the symbol referred is
absolute. Such an operation is meaningful, because an absolute symbol
effectively is a constant the calculation of the value of which has been
deferred to the static link time, and which is not going to change any
further at the dynamic load time. Therefore there is no need ever to
refuse the use of these relocations with such symbols, as the resulting
run-time value observed by the program will be correct even in PIC code.
This is not the case with R_MIPS_26 and its compressed counterparts,
because the run-time value calculated by the instructions these
relocations are used with depends on the address of the instruction
itself, and that can change according to the base address used by the
dynamic loader. Therefore these relocations have to continue being
rejected in PIC code even with absolute symbols.
This allows successful linking of code that relies on previous linker
behavior up to commit
861fb55ab50a ("Defer allocation of R_MIPS_REL32
GOT slots"), <https://sourceware.org/ml/binutils/2008-08/msg00096.html>,
which introduced the problematic check missing this special exception
for absolute symbols.
bfd/
* elfxx-mips.c (_bfd_mips_elf_check_relocs) <R_MIPS16_HI16>
<R_MIPS_HI16, R_MIPS_HIGHER, R_MIPS_HIGHEST, R_MICROMIPS_HI16>
<R_MICROMIPS_HIGHER, R_MICROMIPS_HIGHEST>: Also accept an
absolute symbol in PIC code.
ld/
* testsuite/ld-mips-elf/pic-reloc-0.d: New test.
* testsuite/ld-mips-elf/pic-reloc-1.d: New test.
* testsuite/ld-mips-elf/pic-reloc-2.d: New test.
* testsuite/ld-mips-elf/pic-reloc-3.d: New test.
* testsuite/ld-mips-elf/pic-reloc-4.d: New test.
* testsuite/ld-mips-elf/pic-reloc-absolute-hi.ld: New test
linker script.
* testsuite/ld-mips-elf/pic-reloc-absolute-lo.ld: New test
linker script.
* testsuite/ld-mips-elf/pic-reloc-ordinary.ld: New test linker
script.
* testsuite/ld-mips-elf/pic-reloc-j.s: New test source.
* testsuite/ld-mips-elf/pic-reloc-lui.s: New test source.
* testsuite/ld-mips-elf/mips-elf.exp: Run the new tests.
Maciej W. Rozycki [Tue, 27 Nov 2018 16:34:03 +0000 (16:34 +0000)]
MIPS/LD: Continue processing with refused relocations in PIC code
Switch from `_bfd_error_handler' to `info->callbacks->einfo' with error
reporting concerning the use of position-dependent relocations such as
R_MIPS_HI16 or R_MIPS_26 in PIC code and continue processing so that any
subsequent link errors are also shown rather than the linker terminating
right away. This can reduce user frustration where correcting one error
only reveals another one; instead all are shown together making them all
possible to investigate at once. The use of the `%X' specifier causes
the linker to terminate unsuccessfully at the end of processing.
Also fix the message to say `cannot' rather than `can not'.
bfd/
* elfxx-mips.c (_bfd_mips_elf_check_relocs) <R_MIPS16_26>
<R_MIPS_26, R_MICROMIPS_26_S1>: Use `info->callbacks->einfo'
rather than `_bfd_error_handler' to report refused relocations
in PIC code and continue processing. Fix error message: `can
not' -> `cannot'.
Maciej W. Rozycki [Tue, 27 Nov 2018 16:34:03 +0000 (16:34 +0000)]
LD: Convert `%P: %H:' to `%H:' in error messages
Similarly to commit
174d0a74a2e6 ("PowerPC/BFD: Convert `%P: %H:' to
`%H:' in error messages") convert linker relocation error messages to
use `%H:' rather `%P: %H:', removing inconsistent message composition
like:
$ cat reloc-j.s
.text
.globl foo
.ent foo
foo:
j bar
j bar
.end foo
$ cat reloc-j.ld
SECTIONS
{
bar = 0x12345678;
.text : { *(.text) }
/DISCARD/ : { *(*) }
}
$ as -o reloc-j.o reloc-j.s
$ ld -T reloc-j.ld -o reloc-j reloc-j.o
ld: tmpdir/reloc-j.o: in function `foo':
(.text+0x0): relocation truncated to fit: R_MIPS_26 against `bar'
ld: (.text+0x8): relocation truncated to fit: R_MIPS_26 against `bar'
$
where subsequent lines referring to issues within a single function have
the name of the linker executable prepended, but the first one does not.
As noted with the commit referred 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.
Remove the linker name prefix then, making the messages now look like:
$ ld -T reloc-j.ld -o reloc-j reloc-j.o
tmpdir/reloc-j.o: in function `foo':
(.text+0x0): relocation truncated to fit: R_MIPS_26 against `bar'
(.text+0x8): relocation truncated to fit: R_MIPS_26 against `bar'
$
instead.
ld/
* ldmain.c (reloc_overflow): Use `%H:' rather than `%P: %H:'
with `einfo'.
(reloc_dangerous): Likewise.
(unattached_reloc): Likewise.
H.J. Lu [Tue, 27 Nov 2018 14:02:36 +0000 (06:02 -0800)]
Initialize *uncompressed_align_pow_p to 0
Initialize *uncompressed_align_pow_p to 0 since *uncompressed_align_pow_p
is passed to bfd_is_section_compressed_with_header as uninitialized,
PR binutils/23919
* compress.c (bfd_is_section_compressed_with_header): Initialize
*uncompressed_align_pow_p to 0.
Tamar Christina [Tue, 27 Nov 2018 12:33:21 +0000 (12:33 +0000)]
AArch64: Fix regression in Cortex A53 erratum when PIE. (PR ld/23904)
The fix for PR ld/22263 causes TLS relocations using ADRP to be relaxed
into MOVZ, however this causes issues for the erratum code.
The erratum code scans the input sections looking for ADRP instructions
and notes their location in the stream.
It then later tries to find them again in order to generate the linker
stubs. Due to the relaxation it instead finds a MOVZ and hard aborts.
Since this relaxation is a valid one, and in which case the erratum no
longer applies, it shouldn't abort but instead just continue.
This changes the TLS relaxation code such that when it finds an ADRP and
it relaxes it, it removes the erratum entry from the work list by changing
the stub type into none so the stub is ignored.
The entry is not actually removed as removal is a more expensive operation
and we have already allocated the memory anyway.
The clearing is done for IE->LE and GD->LE relaxations, and a testcase is
added for the IE case. The GD case I believe to be impossible to get together
with the erratum sequence due to the required BL which would break the sequence.
However to cover all basis I have added the guard there as well.
build on native hardware and regtested on
aarch64-none-elf, aarch64-none-elf (32 bit host),
aarch64-none-linux-gnu, aarch64-none-linux-gnu (32 bit host)
Cross-compiled and regtested on
aarch64-none-linux-gnu, aarch64_be-none-linux-gnu
Testcase in PR23940 tested and works as expected now and benchmarks ran on A53
showing no regressions and no issues.
bfd/ChangeLog:
PR ld/23904
* elfnn-aarch64.c (_bfd_aarch64_adrp_p): Use existing constants.
(_bfd_aarch64_erratum_843419_branch_to_stub): Use _bfd_aarch64_adrp_p.
(struct erratum_835769_branch_to_stub_clear_data): New.
(_bfd_aarch64_erratum_843419_clear_stub): New.
(clear_erratum_843419_entry): New.
(elfNN_aarch64_tls_relax): Use it.
(elfNN_aarch64_relocate_section): Pass input_section.
(aarch64_map_one_stub): Handle branch type none as valid.
ld/ChangeLog:
PR ld/23904
* testsuite/ld-aarch64/aarch64-elf.exp: Add erratum843419_tls_ie.
* testsuite/ld-aarch64/erratum843419_tls_ie.d: New test.
* testsuite/ld-aarch64/erratum843419_tls_ie.s: New test.
Jozef Lawrynowicz [Tue, 27 Nov 2018 12:25:09 +0000 (12:25 +0000)]
Tighten the constraints for warning about NOPs for the MSP 430 ISA, so NOPs are only inserted/warned about when needed. Specifically: 430 and 430x ISA require a NOP after DINT. Only the 430x ISA requires NOP before EINT. Only the 430x ISA requires NOP after every EINT. CPU42 errata.
* config/tc-msp430.c (is_dint): New.
(is_eint): New.
(gen_nop): New.
(warn_eint_nop): New.
(warn_unsure_interrupt): New.
(msp430_operands): Determine the effect MOV #N,SR insns have on
interrupt state.
Only emit NOP warnings for 430 ISA in certain situations.
(msp430_md_end): Only warn about an EINT at the end of the file
if NOP warnings are enabled.
* testsuite/gas/msp430/bad.l: Adjust expected output for new warnings.
* testsuite/gas/msp430/msp430.exp: Run new tests.
* testsuite/gas/msp430/nop-dint-430.d: New.
* testsuite/gas/msp430/nop-dint-430.l: New.
* testsuite/gas/msp430/nop-dint-430x-ignore.d: New.
* testsuite/gas/msp430/nop-dint-430x-silent.d: New.
* testsuite/gas/msp430/nop-dint-430x.d: New.
* testsuite/gas/msp430/nop-dint-430x.l: New.
* testsuite/gas/msp430/nop-dint.s: New.
* testsuite/gas/msp430/nop-eint-430.d: New.
* testsuite/gas/msp430/nop-eint-430.l: New.
* testsuite/gas/msp430/nop-eint-430x-ignore.d: New.
* testsuite/gas/msp430/nop-eint-430x-silent.d: New.
* testsuite/gas/msp430/nop-eint-430x.d: New.
* testsuite/gas/msp430/nop-eint-430x.l: New.
* testsuite/gas/msp430/nop-eint.s: New.
* testsuite/gas/msp430/nop-int-430.d: New.
* testsuite/gas/msp430/nop-int-430.l: New.
* testsuite/gas/msp430/nop-int-430x-silent.d: New.
* testsuite/gas/msp430/nop-int-430x.d: New.
* testsuite/gas/msp430/nop-int-430x.l: New.
* testsuite/gas/msp430/nop-int.s: New.
Mark Wielaard [Tue, 27 Nov 2018 11:59:10 +0000 (11:59 +0000)]
Handle ELF compressed header alignment correctly by setting up the section alignment correctly for the Elf32_Chdr or Elf64_Chdr type and respect the ch_addralign field when decompressing the section data.
PR binutils/23919
binutils* readelf.c (dump_sections_as_strings): Remove bogus addralign check.
(dump_sections_as_bytes): Likewise.
(load_specific_debug_sections): Likewise.
* testsuite/binutils-all/dw2-3.rS: Adjust alignment.
* testsuite/binutils-all/dw2-3.rt: Likewise.
bfd * bfd.c (bfd_update_compression_header): Explicitly set alignment.
(bfd_check_compression_header): Add uncompressed_alignment_power
argument. Check ch_addralign is a power of 2.
* bfd-in2.h: Regenerated.
* compress.c (bfd_compress_section_contents): Get and set
orig_uncompressed_alignment_pow if section is decompressed.
(bfd_is_section_compressed_with_header): Add and get
uncompressed_align_pow_p argument.
(bfd_is_section_compressed): Add uncompressed_align_power argument
to bfd_is_section_compressed_with_header call.
(bfd_init_section_decompress_status): Get and set
uncompressed_alignment_power.
* elf.c (_bfd_elf_make_section_from_shdr): Add
uncompressed_align_power argument to
bfd_is_section_compressed_with_header call.
GDB Administrator [Tue, 27 Nov 2018 00:00:24 +0000 (00:00 +0000)]
Automatic date update in version.in
Simon Marchi [Mon, 26 Nov 2018 19:35:03 +0000 (14:35 -0500)]
Fix spurious semicolon in sparc-linux-nat.c
Remove a semicolon that should not be there, as reported in PR 23917:
CXX sparc-linux-nat.o
/home/emaisin/src/binutils-gdb/gdb/sparc-linux-nat.c:39:3: error: expected unqualified-id before ‘{’ token
{ sparc_store_inferior_registers (regcache, regnum); }
^
Tested by rebuilding the file manually (make sparc-linux-nat.o) in a
sparc64-linux-gnu build.
gdb/ChangeLog:
PR gdb/23917
* sparc-linux-nat.c (sparc_linux_nat_target): Remove extraneous
semicolon.
Pedro Alves [Mon, 26 Nov 2018 13:13:35 +0000 (13:13 +0000)]
Fix Solaris build
The recent commit
080363310650 ("Per-inferior thread list, thread
ranges/iterators, down with ALL_THREADS, etc.") removed the
definitions of is_running/is_stopped/is_exited but missed updating a
couple uses of is_exited in Solaris-specific code.
Tested by Rainer Orth on amd64-pc-solaris2.11.
gdb/ChangeLog:
2018-11-26 Pedro Alves <palves@redhat.com>
* procfs.c (procfs_notice_thread): Replace uses of
in_thread_list/is_exited with find_thread_ptid/THREAD_EXITED.
* sol-thread.c (sol_thread_target::wait)
(sol_update_thread_list_callback): Likewise.
Alan Modra [Mon, 26 Nov 2018 11:37:17 +0000 (22:07 +1030)]
[GOLD] justsyms_exec test fail on powerpc64
This test fails on powerpc64le due to the justsyms_lib being built
with exported_data at 0x2010000, apparently due to the powerpc target
code generating an empty relro .branch_lt section. Since the test
relies on the library having exported_data at 0x2000000, avoid the
problem by linking with -z norelro. Also, the test doesn't need to
avoid checking the function symbol on powerpc elfv2.
* testsuite/Makefile.am (justsyms_lib): Link with -z norelro.
* testsuite/Makefile.in: Regenerate.
* testsuite/justsyms_exec.c (main): Do check exported_func
on PowerPC64 ELFv2.
Alan Modra [Mon, 26 Nov 2018 11:35:54 +0000 (22:05 +1030)]
[GOLD] support objdump -T display of st_other
PowerPC64 ELFv2 uses the top 3 bits of st_other to encode a function's
local entry point offset from its global entry point. Allow st_other
bits except for visibility==default.
* testsuite/ver_test_14.sh: Accept objdump -T display of st_other
bits on powerpc64le.
GDB Administrator [Mon, 26 Nov 2018 00:00:37 +0000 (00:00 +0000)]
Automatic date update in version.in
Sergio Durigan Junior [Thu, 22 Nov 2018 21:45:33 +0000 (16:45 -0500)]
Implement timestamp'ed output on "make check"
It is unfortunately not uncommon to have tests hanging on some of the
BuildBot workers. For example, the ppc64be/ppc64le+gdbserver builders
are especially in a bad state when it comes to testing GDB/gdbserver,
and we can have builds that take an absurd amount of time to
finish (almost 1 week for one single build, for example).
It may be hard to diagnose these failures, because sometimes we don't
have access to the faulty systems, and other times we're just too busy
to wait and check which test is actually hanging. During one of our
conversations about the topic, someone proposed that it would be a
good idea to have a timestamp put together with stdout output, so that
we can come back later and examine which tests are taking too long to
complete.
Here's my proposal to do this. The very first thing I tried to do was
to use "ts(1)" to achieve this feature, and it obviously worked, but
the problem is that I'm afraid "ts(1)" may not be widely available on
every system we support. Therefore, I decided to implement a *very*
simple version of "ts(1)", in Python 3, which basically does the same
thing: iterate over the stdin lines, and prepend a timestamp onto
them.
As for testsuite/Makefile.in, the user can now specify two new
variables to enable timestamp'ed output: TS (which enables the
output), and TS_FORMAT (optional, used to specify another timestamp
format according to "strftime").
Here's an example of how the output looks like:
...
[Nov 22 17:07:19] [1234] Running binutils-gdb/gdb/testsuite/gdb.base/call-strs.exp ...
[Nov 22 17:07:19] [1234] Running binutils-gdb/gdb/testsuite/gdb.base/step-over-no-symbols.exp ...
[Nov 22 17:07:20] [1234] Running binutils-gdb/gdb/testsuite/gdb.base/all-architectures-6.exp ...
[Nov 22 17:07:20] [1234] Running binutils-gdb/gdb/testsuite/gdb.base/hashline3.exp ...
[Nov 22 17:07:20] [1234] Running binutils-gdb/gdb/testsuite/gdb.base/max-value-size.exp ...
[Nov 22 17:07:20] [1234] Running binutils-gdb/gdb/testsuite/gdb.base/quit-live.exp ...
[Nov 22 17:07:46] [1234] Running binutils-gdb/gdb/testsuite/gdb.base/paginate-bg-execution.exp ...
[Nov 22 17:07:56] [1234] Running binutils-gdb/gdb/testsuite/gdb.base/gcore-buffer-overflow.exp ...
[Nov 22 17:07:56] [1234] Running binutils-gdb/gdb/testsuite/gdb.base/gcore-relro.exp ...
[Nov 22 17:07:56] [1234] Running binutils-gdb/gdb/testsuite/gdb.base/watchpoint-delete.exp ...
[Nov 22 17:07:56] [1234] Running binutils-gdb/gdb/testsuite/gdb.base/breakpoint-in-ro-region.exp ...
[Nov 22 17:07:56] [1234] Running binutils-gdb/gdb/testsuite/gdb.base/vla-sideeffect.exp ...
[Nov 22 17:07:57] [1234] Running binutils-gdb/gdb/testsuite/gdb.base/unload.exp ...
...
(What, gdb.base/quit-live.exp is taking 26 seconds to complete?!)
Output to stderr is not timestamp'ed, but I don't think that will be a
problem for us. If it is, we can revisit the solution and extend it.
gdb/testsuite/ChangeLog:
2018-11-25 Sergio Durigan Junior <sergiodj@redhat.com>
* Makefile.in (TIMESTAMP): New variable.
(check-single): Add $(TIMESTAMP) to the end of $(DO_RUNTEST)
command.
(check-single-racy): Likewise.
(check/%.exp): Likewise.
(check-racy/%.exp): Likewise.
(workers/%.worker): Likewise.
(build-perf): Likewise.
(check-perf): Likewise.
* README: Describe new "TS" and "TS_FORMAT" variables.
* print-ts.py: New file.
Tom Tromey [Sun, 25 Nov 2018 19:30:20 +0000 (12:30 -0700)]
Remove obsolete comments from field_fmt
This removes some comments that I believe were made obsolete by the
recent change to cli_ui_out::do_field_fmt. The comment in mi_ui_out
probably was just copy/paste, because I think aligning never made
sense in an MI context.
gdb/ChangeLog
2018-11-25 Tom Tromey <tom@tromey.com>
* ui-out.c (ui_out::field_fmt): Remove comment.
* tui/tui-out.c (tui_ui_out::do_field_fmt): Remove comment.
* mi/mi-out.c (mi_ui_out::do_field_fmt): Remove comment.
GDB Administrator [Sun, 25 Nov 2018 00:01:25 +0000 (00:01 +0000)]
Automatic date update in version.in
Philippe Waroquiers [Sat, 24 Nov 2018 11:42:24 +0000 (12:42 +0100)]
Re-fix leak in source.c (open_source_file).
Leak fixed in '
8e6a5953e1d Fix 4K leak in open_source_file' has been partially
undone by '
2179fbc36d23 Return scoped_fd from open_source_file'. Re-add the
transfer of current s->fullname to the unique_xmalloc_ptr fullname given to
find_and_open_source.
GDB Administrator [Sat, 24 Nov 2018 00:00:24 +0000 (00:00 +0000)]
Automatic date update in version.in
Andre Vieira [Fri, 23 Nov 2018 17:10:53 +0000 (17:10 +0000)]
[GAS][ARM] Fix testism for bl local v4t test
gas/ChangeLog
2018-11-23 Andre Vieira <andre.simoesdiasvieira@arm.com>
* testsuite/gas/arm/bl-local-v4t.d: Remove
warning check.
* testsuite/gas/arm/blx-local-thumb.s: New.
* testsuite/gas/arm/blx-local-thumb.d: New.
Alan Hayward [Fri, 23 Nov 2018 11:46:34 +0000 (11:46 +0000)]
gdbserver: AArch64: Remove cannot_fetch/store_register
The cannot store/fetch register functions are only used for checking
if a register can be accessed using PEEKUSER/POKEUSER.
The AArch64 port doesn't support this method of access, so remove the
unused functions.
gdb/gdbserver:
* linux-aarch64-low.c (aarch64_cannot_store_register): Remove.
(aarch64_cannot_fetch_register): Likewise.
(struct linux_target_ops): Update references.
Pedro Alves [Fri, 23 Nov 2018 13:36:59 +0000 (13:36 +0000)]
Remove declarations of is_running/is_stopped/is_exited
The recent commit
080363310650 ("Per-inferior thread list, thread
ranges/iterators, down with ALL_THREADS, etc.") removed the
definitions of is_running/is_stopped/is_exited but missed removing the
declarations.
gdb/ChangeLog:
2018-11-23 Pedro Alves <palves@redhat.com>
* gdbthread.h (enum thread_state): Move comments here.
(is_running, is_stopped, is_exited): Remove declarations.
GDB Administrator [Fri, 23 Nov 2018 00:00:49 +0000 (00:00 +0000)]
Automatic date update in version.in
Pedro Alves [Thu, 22 Nov 2018 16:09:14 +0000 (16:09 +0000)]
Per-inferior thread list, thread ranges/iterators, down with ALL_THREADS, etc.
As preparation for multi-target, this patch makes each inferior have
its own thread list.
This isn't absolutely necessary for multi-target, but simplifies
things. It originally stemmed from the desire to eliminate the
init_thread_list calls sprinkled around, plus it makes it more
efficient to iterate over threads of a given inferior (no need to
always iterate over threads of all inferiors).
We still need to iterate over threads of all inferiors in a number of
places, which means we'd need adjust the ALL_THREADS /
ALL_NON_EXITED_THREADS macros. However, naively tweaking those macros
to have an extra for loop, like:
#define ALL_THREADS (thr, inf) \
for (inf = inferior_list; inf; inf = inf->next) \
for (thr = inf->thread_list; thr; thr = thr->next)
causes problems with code that does "break" or "continue" within the
ALL_THREADS loop body. Plus, we need to declare the extra "inf" local
variable in order to pass it as temporary variable to ALL_THREADS
(etc.)
It gets even trickier when we consider extending the macros to filter
out threads matching a ptid_t and a target. The macros become tricker
to read/write. Been there.
An alternative (which was my next attempt), is to replace the
ALL_THREADS etc. iteration style with for_each_all_threads,
for_each_non_exited_threads, etc. functions which would take a
callback as parameter, which would usually be passed a lambda.
However, I did not find that satisfactory at all, because the
resulting code ends up a little less natural / more noisy to read,
write and debug/step-through (due to use of lambdas), and in many
places where we use "continue;" to skip to the next thread now need to
use "return;". (I ran into hard to debug bugs caused by a
continue/return confusion.)
I.e., before:
ALL_NON_EXITED_THREADS (tp)
{
if (tp->not_what_I_want)
continue;
// do something
}
would turn into:
for_each_non_exited_thread ([&] (thread_info *tp)
{
if (tp->not_what_I_want)
return;
// do something
});
Lastly, the solution I settled with was to replace the ALL_THREADS /
ALL_NON_EXITED_THREADS / ALL_INFERIORS macros with (C++20-like) ranges
and iterators, such that you can instead naturaly iterate over
threads/inferiors using range-for, like e.g,.:
// all threads, including THREAD_EXITED threads.
for (thread_info *tp : all_threads ())
{ .... }
// all non-exited threads.
for (thread_info *tp : all_non_exited_threads ())
{ .... }
// all non-exited threads of INF inferior.
for (thread_info *tp : inf->non_exited_threads ())
{ .... }
The all_non_exited_threads() function takes an optional filter ptid_t as
parameter, which is quite convenient when we need to iterate over
threads matching that filter. See e.g., how the
set_executing/set_stop_requested/finish_thread_state etc. functions in
thread.c end up being simplified.
Most of the patch thus is about adding the infrustructure for allowing
the above. Later on when we get to actual multi-target, these
functions/ranges/iterators will gain a "target_ops *" parameter so
that e.g., we can iterate over all threads of a given target that
match a given filter ptid_t.
The only entry points users needs to be aware of are the
all_threads/all_non_exited_threads etc. functions seen above. Thus,
those functions are declared in gdbthread.h/inferior.h. The actual
iterators/ranges are mainly "internals" and thus are put out of view
in the new thread-iter.h/thread-iter.c/inferior-iter.h files. That
keeps the gdbthread.h/inferior.h headers quite a bit more readable.
A common/safe-iterator.h header is added which adds a template that
can be used to build "safe" iterators, which are forward iterators
that can be used to replace the ALL_THREADS_SAFE macro and other
instances of the same idiom in future.
There's a little bit of shuffling of code between
gdbthread.h/thread.c/inferior.h in the patch. That is necessary in
order to avoid circular dependencies between the
gdbthread.h/inferior.h headers.
As for the init_thread_list calls sprinkled around, they're all
eliminated by this patch, and a new, central call is added to
inferior_appeared. Note how also related to that, there's a call to
init_wait_for_inferior in remote.c that is eliminated.
init_wait_for_inferior is currently responsible for discarding skipped
inline frames, which had to be moved elsewhere. Given that nowadays
we always have a thread even for single-threaded processes, the
natural place is to delete a frame's inline frame info when we delete
the thread. I.e., from clear_thread_inferior_resources.
gdb/ChangeLog:
2018-11-22 Pedro Alves <palves@redhat.com>
* Makefile.in (COMMON_SFILES): Add thread-iter.c.
* breakpoint.c (breakpoints_should_be_inserted_now): Replace
ALL_NON_EXITED_THREADS with all_non_exited_threads.
(print_one_breakpoint_location): Replace ALL_INFERIORS with
all_inferiors.
* bsd-kvm.c: Include inferior.h.
* btrace.c (btrace_free_objfile): Replace ALL_NON_EXITED_THREADS
with all_non_exited_threads.
* common/filtered-iterator.h: New.
* common/safe-iterator.h: New.
* corelow.c (core_target_open): Don't call init_thread_list here.
* darwin-nat.c (thread_info_from_private_thread_info): Replace
ALL_THREADS with all_threads.
* fbsd-nat.c (fbsd_nat_target::resume): Replace
ALL_NON_EXITED_THREADS with inf->non_exited_threads.
* fbsd-tdep.c (fbsd_make_corefile_notes): Replace
ALL_NON_EXITED_THREADS with inf->non_exited_threads.
* fork-child.c (postfork_hook): Don't call init_thread_list here.
* gdbarch-selftests.c (register_to_value_test): Adjust.
* gdbthread.h: Don't include "inferior.h" here.
(struct inferior): Forward declare.
(enum step_over_calls_kind): Moved here from inferior.h.
(thread_info::deletable): Definition moved to thread.c.
(find_thread_ptid (inferior *, ptid_t)): Declare.
(ALL_THREADS, ALL_THREADS_BY_INFERIOR, ALL_THREADS_SAFE): Delete.
Include "thread-iter.h".
(all_threads, all_non_exited_threads, all_threads_safe): New.
(any_thread_p): Declare.
(thread_list): Delete.
* infcmd.c (signal_command): Replace ALL_NON_EXITED_THREADS with
all_non_exited_threads.
(proceed_after_attach_callback): Delete.
(proceed_after_attach): Take an inferior pointer instead of an
integer PID. Adjust to use range-for.
(attach_post_wait): Pass down inferior pointer instead of pid.
Use range-for instead of ALL_NON_EXITED_THREADS.
(detach_command): Remove init_thread_list call.
* inferior-iter.h: New.
* inferior.c (struct delete_thread_of_inferior_arg): Delete.
(delete_thread_of_inferior): Delete.
(delete_inferior, exit_inferior_1): Use range-for with
inf->threads_safe() instead of iterate_over_threads.
(inferior_appeared): Call init_thread_list here.
(discard_all_inferiors): Use all_non_exited_inferiors.
(find_inferior_id, find_inferior_pid): Use all_inferiors.
(iterate_over_inferiors): Use all_inferiors_safe.
(have_inferiors, number_of_live_inferiors): Use
all_non_exited_inferiors.
(number_of_inferiors): Use all_inferiors and std::distance.
(print_inferior): Use all_inferiors.
* inferior.h: Include gdbthread.h.
(enum step_over_calls_kind): Moved to gdbthread.h.
(struct inferior) <thread_list>: New field.
<threads, non_exited_threads, threads_safe>: New methods.
(ALL_INFERIORS): Delete.
Include "inferior-iter.h".
(ALL_NON_EXITED_INFERIORS): Delete.
(all_inferiors_safe, all_inferiors, all_non_exited_inferiors): New
functions.
* inflow.c (child_interrupt, child_pass_ctrlc): Replace
ALL_NON_EXITED_THREADS with all_non_exited_threads.
* infrun.c (follow_exec): Use all_threads_safe.
(clear_proceed_status, proceed): Use all_non_exited_threads.
(init_wait_for_inferior): Don't clear inline frame state here.
(infrun_thread_stop_requested, for_each_just_stopped_thread): Use
all_threads instead of ALL_NON_EXITED_THREADS.
(random_pending_event_thread): Use all_non_exited_threads instead
of ALL_NON_EXITED_THREADS. Use a lambda for repeated code.
(clean_up_just_stopped_threads_fsms): Use all_non_exited_threads
instead of ALL_NON_EXITED_THREADS.
(handle_no_resumed): Use all_non_exited_threads instead of
ALL_NON_EXITED_THREADS. Use all_inferiors instead of
ALL_INFERIORS.
(restart_threads, switch_back_to_stepped_thread): Use
all_non_exited_threads instead of ALL_NON_EXITED_THREADS.
* linux-nat.c (check_zombie_leaders): Replace ALL_INFERIORS with
all_inferiors.
(kill_unfollowed_fork_children): Use inf->non_exited_threads
instead of ALL_NON_EXITED_THREADS.
* linux-tdep.c (linux_make_corefile_notes): Use
inf->non_exited_threads instead of ALL_NON_EXITED_THREADS.
* linux-thread-db.c (thread_db_target::update_thread_list):
Replace ALL_INFERIORS with all_inferiors.
(thread_db_target::thread_handle_to_thread_info): Use
inf->non_exited_threads instead of ALL_NON_EXITED_THREADS.
* mi/mi-interp.c (multiple_inferiors_p): New.
(mi_on_resume_1): Simplify using all_non_exited_threads and
multiple_inferiors_p.
* mi/mi-main.c (mi_cmd_thread_list_ids): Use all_non_exited_threads
instead of ALL_NON_EXITED_THREADS.
* nto-procfs.c (nto_procfs_target::open): Don't call
init_thread_list here.
* record-btrace.c (record_btrace_target_open)
(record_btrace_target::stop_recording)
(record_btrace_target::close)
(record_btrace_target::record_is_replaying)
(record_btrace_target::resume, record_btrace_target::wait)
(record_btrace_target::record_stop_replaying): Use
all_non_exited_threads instead of ALL_NON_EXITED_THREADS.
* record-full.c (record_full_wait_1): Use all_non_exited_threads
instead of ALL_NON_EXITED_THREADS.
* regcache.c (cooked_read_test): Remove reference to global
thread_list.
* remote-sim.c (gdbsim_target::create_inferior): Don't call
init_thread_list here.
* remote.c (remote_target::update_thread_list): Use
all_threads_safe instead of ALL_NON_EXITED_THREADS.
(remote_target::process_initial_stop_replies): Replace
ALL_INFERIORS with all_non_exited_inferiors and use
all_non_exited_threads instead of ALL_NON_EXITED_THREADS.
(remote_target::open_1): Don't call init_thread_list here.
(remote_target::append_pending_thread_resumptions)
(remote_target::remote_resume_with_hc): Use all_non_exited_threads
instead of ALL_NON_EXITED_THREADS.
(remote_target::commit_resume)
(remote_target::remove_new_fork_children): Replace ALL_INFERIORS
with all_non_exited_inferiors and use all_non_exited_threads
instead of ALL_NON_EXITED_THREADS.
(remote_target::kill_new_fork_children): Use
all_non_exited_threads instead of ALL_NON_EXITED_THREADS. Remove
init_thread_list and init_wait_for_inferior calls.
(remote_target::remote_btrace_maybe_reopen)
(remote_target::thread_handle_to_thread_info): Use
all_non_exited_threads instead of ALL_NON_EXITED_THREADS.
* target.c (target_terminal::restore_inferior)
(target_terminal_is_ours_kind): Replace ALL_INFERIORS with
all_non_exited_inferiors.
* thread-iter.c: New file.
* thread-iter.h: New file.
* thread.c: Include "inline-frame.h".
(thread_list): Delete.
(clear_thread_inferior_resources): Call clear_inline_frame_state.
(init_thread_list): Use all_threads_safe instead of
ALL_THREADS_SAFE. Adjust to per-inferior thread lists.
(new_thread): Adjust to per-inferior thread lists.
(add_thread_silent): Pass inferior to find_thread_ptid.
(thread_info::deletable): New, moved from the header.
(delete_thread_1): Adjust to per-inferior thread lists.
(find_thread_global_id): Use inf->threads().
(find_thread_ptid): Use find_inferior_ptid and pass inferior to
find_thread_ptid.
(find_thread_ptid(inferior*, ptid_t)): New overload.
(iterate_over_threads): Use all_threads_safe.
(any_thread_p): New.
(thread_count): Use all_threads and std::distance.
(live_threads_count): Use all_non_exited_threads and
std::distance.
(valid_global_thread_id): Use all_threads.
(in_thread_list): Use find_thread_ptid.
(first_thread_of_inferior): Adjust to per-inferior thread lists.
(any_thread_of_inferior, any_live_thread_of_inferior): Use
inf->non_exited_threads().
(prune_threads, delete_exited_threads): Use all_threads_safe.
(thread_change_ptid): Pass inferior pointer to find_thread_ptid.
(set_resumed, set_running): Use all_non_exited_threads.
(is_thread_state, is_stopped, is_exited, is_running)
(is_executing): Delete.
(set_executing, set_stop_requested, finish_thread_state): Use
all_non_exited_threads.
(print_thread_info_1): Use all_inferiors and all_threads.
(thread_apply_all_command): Use all_non_exited_threads.
(thread_find_command): Use all_threads.
(update_threads_executing): Use all_non_exited_threads.
* tid-parse.c (parse_thread_id): Use inf->threads.
* x86-bsd-nat.c (x86bsd_dr_set): Use inf->non_exited_threads ().
Pedro Alves [Thu, 22 Nov 2018 16:09:12 +0000 (16:09 +0000)]
Fix follow_exec latent problem
A following commit to make each inferior have its own thread list
exposes a problem with
bf93d7ba99 ("Add thread after updating gdbarch
when exec'ing"), which is that we can't defer adding the thread
because that breaks try_open_exec_file which deep inside ends up
calling inferior_thread():
#5 0x0000000000637c78 in internal_error(char const*, int, char const*, ...) (file=0xc151f8 "src/gdb/thread.c", line=165, fmt=0xc15180 "%s: Assertion `%s' failed.") at src/gdb/common/errors.c:55
#6 0x00000000008a3d80 in inferior_thread() () at src/gdb/thread.c:165
#7 0x0000000000456f91 in try_thread_db_load_1(thread_db_info*) (info=0x277eb00) at src/gdb/linux-thread-db.c:830
#8 0x0000000000457554 in try_thread_db_load(char const*, int) (library=0xb01a4f "libthread_db.so.1", check_auto_load_safe=0)
at src/gdb/linux-thread-db.c:1002
#9 0x0000000000457861 in try_thread_db_load_from_sdir() () at src/gdb/linux-thread-db.c:1079
#10 0x0000000000457b72 in thread_db_load_search() () at src/gdb/linux-thread-db.c:1134
#11 0x0000000000457d29 in thread_db_load() () at src/gdb/linux-thread-db.c:1192
#12 0x0000000000457e51 in check_for_thread_db() () at src/gdb/linux-thread-db.c:1244
#13 0x0000000000457ed2 in thread_db_new_objfile(objfile*) (objfile=0x270ff60) at src/gdb/linux-thread-db.c:1273
#14 0x000000000045a92e in std::_Function_handler<void (objfile*), void (*)(objfile*)>::_M_invoke(std::_Any_data const&, objfile*&&) (__functor=..., __args#0=@0x7ffef3efe140: 0x270ff60) at /usr/include/c++/7/bits/std_function.h:316
#15 0x00000000007bbebf in std::function<void (objfile*)>::operator()(objfile*) const (this=0x24e1d18, __args#0=0x270ff60)
at /usr/include/c++/7/bits/std_function.h:706
#16 0x00000000007bba86 in gdb::observers::observable<objfile*>::notify(objfile*) const (this=0x117ce80 <gdb::observers::new_objfile>, args#0=0x270ff60) at src/gdb/common/observable.h:106
#17 0x0000000000856000 in symbol_file_add_with_addrs(bfd*, char const*, symfile_add_flags, section_addr_info*, objfile_flags, objfile*) (abfd=0x1d7dae0, name=0x254bfc0 "/ho
The problem is latent currently because inferior_thread() at that
point manages to return a thread, even though it's the wrong one (of
the old inferior).
The problem originally fixed by
bf93d7ba99 was:
(...) we should avoid doing register reads
after a process does an exec and before we've updated that inferior's
gdbarch. Otherwise, we may interpret the registers using the wrong
architecture.
(...) The call to "add_thread" done just after adding the inferior is
problematic, because it ends up reading the registers (because the ptid
is re-used, we end up doing a switch_to_thread to it, which tries to
update stop_pc). (...)
The register-reading issue is no longer a problem nowadays, ever since
switch_to_thread stopped reading the stop_pc in git commit
f2ffa92bbce9 ("gdb: Eliminate the 'stop_pc' global").
So this commit basically reverts
bf93d7ba99.
gdb/ChangeLog:
2018-11-22 Pedro Alves <palves@redhat.com>
* infrun.c (follow_exec) <set follow-exec new>: Add thread and
switch to it before calling into try_open_exec_file.
Pedro Alves [Thu, 22 Nov 2018 16:09:12 +0000 (16:09 +0000)]
Avoid find_thread_ptid with null_ptid
With a following patch, find_thread_ptid will first find the inferior
for the passed-in ptid, using find_inferior_pid, and then look for the
thread in that inferior's thread list. If we pass down null_ptid to
find_thread_ptid then that means we'll end up passing 0 to
find_inferior_pid, which hits this assertion:
> struct inferior *
> find_inferior_pid (int pid)
> {
> struct inferior *inf;
>
> /* Looking for inferior pid == 0 is always wrong, and indicative of
> a bug somewhere else. There may be more than one with pid == 0,
> for instance. */
> gdb_assert (pid != 0);
This patch prepares for the change, by avoiding passing down null_ptid
to find_thread_ptid or to functions that naturally use it, such as the
target_pid_to_str call in inferior.c:add_inferior. In that latter
case, the patch changes GDB output,
from:
(gdb) add-inferior
[New inferior 2 (process 0)]
to:
(gdb) add-inferior
[New inferior 2]
which seems like a good change to me. It might not even make sense to
talk about "process" for the current target, for example.
The python_on_normal_stop change ends up avoiding looking up the
same thread twice (inferior_thread also does a look up).
gdb/ChangeLog:
2018-11-22 Pedro Alves <palves@redhat.com>
* cli/cli-interp.c (cli_on_user_selected_context_changed): Use
inferior_thread instead of find_thread_ptid, and only when
inferior_ptid is not null_ptid.
* inferior.c (add_inferior): Don't include target_pid_to_str
output when the inferior is not started.
* python/py-inferior.c (python_on_normal_stop): Don't use
find_thread_ptid.
(tui_on_user_selected_context_changed): Use inferior_thread
instead of find_thread_ptid, and only when inferior_ptid is not
null_ptid.
GDB Administrator [Thu, 22 Nov 2018 00:00:17 +0000 (00:00 +0000)]
Automatic date update in version.in
John Darrington [Tue, 20 Nov 2018 17:50:30 +0000 (18:50 +0100)]
S12Z opcodes: Fix bug disassembling certain shift instructions.
Shift and rotate instructions when the number of bit positions
was an immediate value greater than 1 were incorrectly disassembled.
This change fixes that problem and extends the test to check for
it.
gas/ChangeLog:
testsuite/gas/s12z/shift.s: Add new test case.
testsuite/gas/s12z/shift.d: Add expected result.
opcodes/ChangeLog:
s12z-dis.c (print_insn_shift) [SB_REG_REG_N]: Enter special case
if the postbyte matches the appropriate pattern.
John Darrington [Tue, 20 Nov 2018 17:50:30 +0000 (18:50 +0100)]
S12Z: Add alias instructions BHS and BLO.
These are documented by NXP as alternative mnemonics for BCC and BCS
respectively.
gas/ChangeLog:
* config/tc-s12z.c (opcodes): bhs, blo: New members.
* testsuite/gas/s12z/bra.d: Add tests for aliases.
* testsuite/gas/s12z/bra.s: Add tests for aliases.
Benno Fünfstück [Wed, 21 Nov 2018 17:06:05 +0000 (17:06 +0000)]
Make command-repeat work after gdb.execute
Since commit
56bcdbea2bed ("Let gdb.execute handle multi-line commands")
command repetition after using the `gdb.execute` Python function
fails (the previous command is not repeated anymore). This happens
because read_command_lines_1 sets dont_repeat, but the call to
prevent_dont_repeat in execute_gdb_command is later.
The fix is to move the call to prevent_dont_repeat to the beginning of
the function.
Tested on my laptop (ArchLinux-x86_64).
gdb/ChangeLog:
PR python/23714
* gdb/python/python.c (execute_gdb_command): Call
prevent_dont_repeat earlier to avoid affecting dont_repeat.
gdb/testuite/ChangeLog:
PR python/23714
* gdb.python/python.exp: Test command repetition after
gdb.execute.
Jozef Lawrynowicz [Wed, 21 Nov 2018 16:21:25 +0000 (16:21 +0000)]
Fix linking MSP430 files created by gcc's LTO optimizer.
When invoking GCC with "-g -flto", the compiler will create LTO objects
with debug information. The objects created are "simple ELF" objects (see
libiberty/simple-object-elf.c) and do not have target-specific sections.
When the MSP430 linker sees one of these objects without a .MSP430.attributes
section it errors:
> error: /tmp/cc4LhbEI.ltrans0.ltrans.o uses MSP430X instructions but /tmp/ccynqIwudebugobj uses unknown
> error: /tmp/cc4LhbEI.ltrans0.ltrans.o uses the small code model whereas /tmp/ccynqIwudebugobj uses the unknown code model
> error: /tmp/cc4LhbEI.ltrans0.ltrans.o uses the small data model whereas /tmp/ccynqIwudebugobj uses the unknown data model
> error: /tmp/cc4LhbEI.ltrans0.ltrans.o uses the small code model but /tmp/ccynqIwudebugobj uses the unknown data model
> failed to merge target specific data of file /tmp/cc4LhbEI.ltrans0.ltrans.o
The following patch allows these debug LTO objects to be linked with other
MSP430 objects even if they do not have a .MSP430.attributes section.
bfd * elf32-msp430.c (elf32_msp430_merge_mspabi_attributes): Do not
error when .MSP430.attributes section is missing from objects
created by LTO.
Andrew Burgess [Mon, 29 Oct 2018 15:10:52 +0000 (15:10 +0000)]
gdb/riscv: Add target description support
This commit adds target description support for riscv.
I've used the split feature approach for specifying the architectural
features, and the CSR feature is auto-generated from the riscv-opc.h
header file.
If the target doesn't provide a suitable target description then GDB
will build one by looking at the bfd headers.
This commit does not implement target description creation for the
Linux or FreeBSD native targets, both of these will need to add
read_description methods into their respective target classes, which
probe the target features, and then call
riscv_create_target_description to build a suitable target
description. Until this is done Linux and FreeBSD will get the same
default target description based on the bfd that bare-metal targets
get.
I've only added feature descriptions for 32 and 64 bit registers, 128
bit registers (for RISC-V) are not supported in the reset of GDB yet.
This commit removes the special reading of the MISA register in order
to establish the target features, this was only used for figuring out
the f-register size, and even that wasn't done consistently. We now
rely on the target to tell us what size of registers it has (or look
in the BFD as a last resort). The result of this is that we should
now support RV64 targets with 32-bit float, though I have not
extensively tested this combination yet.
* Makefile.in (ALL_TARGET_OBS): Add arch/riscv.o.
(HFILES_NO_SRCDIR): Add arch/riscv.h.
* arch/riscv.c: New file.
* arch/riscv.h: New file.
* configure.tgt: Add cpu_obs list of riscv, move riscv-tdep.o into
this list, and add arch/riscv.o.
* features/Makefile: Add riscv features.
* features/riscv/32bit-cpu.c: New file.
* features/riscv/32bit-cpu.xml: New file.
* features/riscv/32bit-csr.c: New file.
* features/riscv/32bit-csr.xml: New file.
* features/riscv/32bit-fpu.c: New file.
* features/riscv/32bit-fpu.xml: New file.
* features/riscv/64bit-cpu.c: New file.
* features/riscv/64bit-cpu.xml: New file.
* features/riscv/64bit-csr.c: New file.
* features/riscv/64bit-csr.xml: New file.
* features/riscv/64bit-fpu.c: New file.
* features/riscv/64bit-fpu.xml: New file.
* features/riscv/rebuild-csr-xml.sh: New file.
* riscv-tdep.c: Add 'arch/riscv.h' include.
(riscv_gdb_reg_names): Delete.
(csr_reggroup): New global.
(struct riscv_register_alias): Delete.
(struct riscv_register_feature): New structure.
(riscv_register_aliases): Delete.
(riscv_xreg_feature): New global.
(riscv_freg_feature): New global.
(riscv_virtual_feature): New global.
(riscv_csr_feature): New global.
(riscv_create_csr_aliases): New function.
(riscv_read_misa_reg): Delete.
(riscv_has_feature): Delete.
(riscv_isa_xlen): Simplify, just return cached xlen.
(riscv_isa_flen): Simplify, just return cached flen.
(riscv_has_fp_abi): Update for changes in struct gdbarch_tdep.
(riscv_register_name): Update to make use of tdesc_register_name.
Look up xreg and freg names in the new globals riscv_xreg_feature
and riscv_freg_feature. Don't supply csr aliases here.
(riscv_fpreg_q_type): Delete.
(riscv_register_type): Use tdesc_register_type in almost all
cases, override the returned type in a few specific cases only.
(riscv_print_one_register_info): Handle errors reading registers.
(riscv_register_reggroup_p): Use tdesc_register_in_reggroup_p for
registers that are otherwise unknown to GDB. Also check the
csr_reggroup.
(riscv_print_registers_info): Remove assert about upper register
number, and use gdbarch_register_reggroup_p instead of
short-cutting.
(riscv_find_default_target_description): New function.
(riscv_check_tdesc_feature): New function.
(riscv_add_reggroups): New function.
(riscv_setup_register_aliases): New function.
(riscv_init_reggroups): New function.
(_initialize_riscv_tdep): Add calls to setup CSR aliases, and
setup register groups. Register new riscv debug variable.
* riscv-tdep.h: Add 'arch/riscv.h' include.
(struct gdbarch_tdep): Remove abi union, and add
riscv_gdbarch_features field. Remove cached quad floating point
type, and provide initialisation for double type field.
* target-descriptions.c (maint_print_c_tdesc_cmd): Add riscv to
the list of targets using the feature based target descriptions.
* NEWS: Mention target description support.
gdb/doc/ChangeLog:
* gdb.texinfo (Standard Target Features): Add RISC-V Features
sub-section.
Pedro Alves [Wed, 21 Nov 2018 11:55:15 +0000 (11:55 +0000)]
valops.c: Overload resolution code: Rename parameters/locals
While looking over this code, I thought the names of the parameters to
find_oload_champ and related functions and locals were a bit too
cryptic. For example, FN_LIST holds methods, not free functions.
Free-functions are in OLOAD_SYMS.
This patch renames parameters/variables to the more obvious
methods/xmethods/functions instead.
gdb/ChangeLog:
2018-11-21 Pedro Alves <palves@redhat.com>
* valops.c (find_method_list, value_find_oload_method_list)
(find_overload_match, find_oload_champ): Rename parameters and
locals.
Pedro Alves [Wed, 21 Nov 2018 11:55:14 +0000 (11:55 +0000)]
valops.c: Some more gdb::array_view
This commit replaces some more use of pointer+length pairs in the
overload resolution code with gdb::array_view.
find_oload_champ's interface is simplified/normalized: the xmethods
parameter is converted from std::vector to array pointer, and then the
num_fns parameter is always passed in, no matter the array which is
non-NULL. I tweaked the formatting of callers a little bit here and
there so that the 3 optional parameters are all in the same line. (I
tried making the 3 optional array parameters be array_views, but the
resulting code didn't look as nice.)
gdb/ChangeLog:
2018-11-21 Pedro Alves <palves@redhat.com>
* valops.c (find_method_list): Replace pointer and length
parameters with an gdb::array_view. Adjust.
(value_find_oload_method_list): Likewise.
(find_overload_match): Use gdb::array_view for methods list.
Adjust to find_oload_champ interface change.
(find_oload_champ): 'xm_worker_vec' parameter now a pointer/array.
'num_fns' parameter now a size_t. Eliminate 'fn_count' local.
Pedro Alves [Wed, 21 Nov 2018 11:55:14 +0000 (11:55 +0000)]
C++ify badness_vector, fix leaks
badness_vector is currently an open coded vector. This reimplements
it as a std::vector.
This fixes a few leaks as well:
- find_oload_champ is leaking every badness vector calculated bar the
one returned.
- bv->rank is always leaked, since callers of rank_function only
xfree the badness_vector pointer, not bv->rank.
gdb/ChangeLog:
2018-11-21 Pedro Alves <palves@redhat.com>
* gdbtypes.c (compare_badness): Change type of parameters to const
reference. Adjust to badness_vector being a std::vector now.
(rank_function): Adjust to badness_vector being a std::vector now.
* gdbtypes.h (badness_vector): Now a typedef to std::vector.
(LENGTH_MATCH): Delete.
(compare_badness): Change type of parameters to const reference.
(rank_function): Return a badness_vector by value now.
(find_overload_match): Adjust to badness_vector being a
std::vector now. Remove cleanups.
(find_oload_champ_namespace): 'oload_champ_bv' parameter now a
badness_vector pointer.
(find_oload_champ_namespace_loop): 'oload_champ_bv' parameter now
a badness_vector pointer. Adjust to badness_vector being a
std::vector now. Remove cleanups.
(find_oload_champ): 'oload_champ_bv' parameter now
a badness_vector pointer. Adjust to badness_vector being a
std::vector now. Remove cleanups.
Pedro Alves [Wed, 21 Nov 2018 11:55:13 +0000 (11:55 +0000)]
Eliminate make_symbol_overload_list-related globals & cleanup
This gets rid of a few globals and a cleanup.
make_symbol_overload_list & friends currently maintain a global
open-coded vector. Reimplement that with a std::vector, trickled down
through the functions. Rename a few functions from "make_" to "add_"
for clarity.
gdb/ChangeLog:
2018-11-21 Pedro Alves <palves@redhat.com>
* cp-support.c (sym_return_val_size, sym_return_val_index)
(sym_return_val): Delete.
(overload_list_add_symbol): Add std::vector parameter. Adjust to
add to the vector.
(make_symbol_overload_list): Adjust to return a std::vector
instead of maintaining a global open coded vector.
(make_symbol_overload_list_block): Add std::vector parameter.
(make_symbol_overload_list_block): Rename to ...
(add_symbol_overload_list_block): ... this and add std::vector
parameter.
(make_symbol_overload_list_namespace): Rename to ...
(add_symbol_overload_list_namespace): ... this and add std::vector
parameter.
(make_symbol_overload_list_adl_namespace): Rename to ...
(add_symbol_overload_list_adl_namespace): ... this and add
std::vector parameter.
(make_symbol_overload_list_adl): Delete.
(add_symbol_overload_list_adl): New.
(make_symbol_overload_list_using): Rename to ...
(add_symbol_overload_list_using): ... this and add std::vector
parameter.
(make_symbol_overload_list_qualified): Rename to ...
(add_symbol_overload_list_qualified): ... this and add std::vector
parameter.
* cp-support.h: Include "common/array-view.h" and <vector>.
(make_symbol_overload_list): Change return type to std::vector.
(make_symbol_overload_list_adl): Delete declaration.
(add_symbol_overload_list_adl): New declaration.
* valops.c (find_overload_match): Local 'oload_syms' now a
std::vector.
(find_oload_champ_namespace): 'oload_syms' parameter now a
std::vector pointer.
(find_oload_champ_namespace_loop): 'oload_syms' parameter now a
std::vector pointer. Adjust to new make_symbol_overload_list
interface.
Pedro Alves [Wed, 21 Nov 2018 11:55:12 +0000 (11:55 +0000)]
invoke_xmethod & array_view
This replaces more pointer+length with gdb::array_view. This time,
around invoke_xmethod, and then propagating the fallout around, which
inevitably leaks to the overload resolution code.
There are several places in the code that want to grab a slice of an
array, by advancing the array pointer, and decreasing the length
pointer. This patch introduces a pair of new
gdb::array_view::slice(...) methods to make that convenient and clear.
Unit test included.
gdb/ChangeLog:
2018-11-21 Pedro Alves <palves@redhat.com>
* common/array-view.h (array_view::splice(size_type, size_t)): New.
(array_view::splice(size_type)): New.
* eval.c (eval_call, evaluate_funcall): Adjust to use array_view.
* extension.c (xmethod_worker::get_arg_types): Adjust to return an
std::vector.
(xmethod_worker::get_result_type): Adjust to use gdb::array_view.
* extension.h: Include "common/array-view.h".
(xmethod_worker::invoke): Adjust to use gdb::array_view.
(xmethod_worker::get_arg_types): Adjust to return an std::vector.
(xmethod_worker::get_result_type): Adjust to use gdb::array_view.
(xmethod_worker::do_get_arg_types): Adjust to use std::vector.
(xmethod_worker::do_get_result_type): Adjust to use
gdb::array_view.
* gdbtypes.c (rank_function): Adjust to use gdb::array_view.
* gdbtypes.h: Include "common/array-view.h".
(rank_function): Adjust to use gdb::array_view.
* python/py-xmethods.c (python_xmethod_worker::invoke)
(python_xmethod_worker::do_get_arg_types)
(python_xmethod_worker::do_get_result_type)
(python_xmethod_worker::invoke): Adjust to new interfaces.
* valarith.c (value_user_defined_cpp_op, value_user_defined_op)
(value_x_binop, value_x_unop): Adjust to use gdb::array_view.
* valops.c (find_overload_match, find_oload_champ_namespace)
(find_oload_champ_namespace_loop, find_oload_champ): Adjust to use
gdb:array_view and the new xmethod_worker interfaces.
* value.c (result_type_of_xmethod, call_xmethod): Adjust to use
gdb::array_view.
* value.h (find_overload_match, result_type_of_xmethod)
(call_xmethod): Adjust to use gdb::array_view.
* unittests/array-view-selftests.c: Add slicing tests.
Pedro Alves [Wed, 21 Nov 2018 11:55:11 +0000 (11:55 +0000)]
Use gdb:array_view in call_function_by_hand & friends
This replaces a few uses of pointer+length with gdb::array_view, in
call_function_by_hand and related code.
Unfortunately, due to -Wnarrowing, there are places where we can't
brace-initialize an gdb::array_view without an ugly-ish cast. To
avoid the cast, this patch introduces a gdb::make_array_view function.
Unit tests included.
This patch in isolation may not look so interesting, due to
gdb::make_array_view uses, but I think it's still worth it. Some of
the gdb::make_array_view calls disappear down the series, and others
could be eliminated with more (non-trivial) gdb::array_view
detangling/conversion (e.g. code around eval_call). See this as a "we
have to start somewhere" patch.
gdb/ChangeLog:
2018-11-21 Pedro Alves <palves@redhat.com>
* ada-lang.c (ada_evaluate_subexp): Adjust to pass an array_view.
* common/array-view.h (make_array_view): New.
* compile/compile-object-run.c (compile_object_run): Adjust to
pass an array_view.
* elfread.c (elf_gnu_ifunc_resolve_addr): Adjust.
* eval.c (eval_call): Adjust to pass an array_view.
(evaluate_subexp_standard): Adjust to pass an array_view.
* gcore.c (call_target_sbrk): Adjust to pass an array_view.
* guile/scm-value.c (gdbscm_value_call): Likewise.
* infcall.c (push_dummy_code): Replace pointer + size parameters
with an array_view parameter.
(call_function_by_hand, call_function_by_hand_dummy): Likewise and
adjust.
* infcall.h: Include "common/array-view.h".
(call_function_by_hand, call_function_by_hand_dummy): Replace
pointer + size parameters with an array_view parameter.
* linux-fork.c (inferior_call_waitpid): Adjust to use array_view.
* linux-tdep.c (linux_infcall_mmap): Likewise.
* objc-lang.c (lookup_objc_class, lookup_child_selector)
(value_nsstring, print_object_command): Likewise.
* python/py-value.c (valpy_call): Likewise.
* rust-lang.c (rust_evaluate_funcall): Likewise.
* spu-tdep.c (flush_ea_cache): Likewise.
* valarith.c (value_x_binop, value_x_unop): Likewise.
* valops.c (value_allocate_space_in_inferior): Likewise.
* unittests/array-view-selftests.c (run_tests): Add
gdb::make_array_view test.
GDB Administrator [Wed, 21 Nov 2018 00:00:26 +0000 (00:00 +0000)]
Automatic date update in version.in
Andrew Burgess [Tue, 20 Nov 2018 13:36:49 +0000 (13:36 +0000)]
gdb: Use string_printf to format int fields instead of a fixed size buffer
This patch removes a FIXME comment from cli-out.c, now instead of
formatting integers into a fixed size buffer we build a std::string
and extract the formatted integer from that.
The old code using a fixed size buffer was probably fine (the integer
was not going to overflow it) and probably slightly more efficient
(avoids building a std::string) however, given we already have utility
code in GDB that will allow the 'FIXME' comment to be removed, it
seems like an easy improvement.
gdb/ChangeLog:
* cli-out.c (cli_ui_out::do_field_int): Use string_printf rather
than a fixed size buffer.
Andrew Burgess [Tue, 20 Nov 2018 12:59:18 +0000 (12:59 +0000)]
gdb: Respect field width and alignment for 'fmt' fields in CLI output
Currently the method 'cli_ui_out::do_field_fmt' has this comment:
/* This is the only field function that does not align. */
The reality is even slightly worse, the 'fmt' field type doesn't
respect either the field alignment or the field width. In at least
one place in GDB we attempt to work around this lack of respect for
field width by adding additional padding manually. But, as is often
the case, this is leading to knock on problems.
Conside the output for 'info breakpoints' when a breakpoint has
multiple locations. This example is taken from the testsuite, from
test gdb.opt/inline-break.exp:
(gdb) info breakpoints
Num Type Disp Enb Address What
1 breakpoint keep y <MULTIPLE>
1.1 y 0x00000000004004ae in func4b at /src/gdb/testsuite/gdb.opt/inline-break.c:64
1.2 y 0x0000000000400682 in func4b at /src/gdb/testsuite/gdb.opt/inline-break.c:64
The miss-alignment of the fields shown here is exactly as GDB
currently produces.
With this patch 'fmt' style fields are now first written into a
temporary buffer, and then written out as a 'string' field. The
result is that the field width, and alignment should now be respected.
With this patch in place the output from GDB now looks like this:
(gdb) info breakpoints
Num Type Disp Enb Address What
1 breakpoint keep y <MULTIPLE>
1.1 y 0x00000000004004ae in func4b at /src/gdb/testsuite/gdb.opt/inline-break.c:64
1.2 y 0x0000000000400682 in func4b at /src/gdb/testsuite/gdb.opt/inline-break.c:64
This patch has been tested on x86-64/Linux with no regressions,
however, the testsuite doesn't always spot broken output formatting or
alignment. I have also audited all uses of 'fmt' fields that I could
find, and I don't think there are any other places that specifically
try to work around the lack of width/alignment, however, I could have
missed something.
gdb/ChangeLog:
* breakpoint.c (print_one_breakpoint_location): Reduce whitespace,
and remove insertion of extra spaces in GDB's output.
* cli-out.c (cli_ui_out::do_field_fmt): Update header comment.
Layout field into a temporary buffer, and then output it as a
string field.
gdb/testsuite/ChangeLog:
* gdb.opt/inline-break.exp: Add test that info breakpoint output
is correctly aligned.
Philippe Waroquiers [Sun, 28 Oct 2018 14:30:45 +0000 (15:30 +0100)]
NEWS: Document the language choice by 'info [types|functions|variables]|rbreak'.
gdb/ChangeLog
2018-11-20 Philippe Waroquiers <philippe.waroquiers@skynet.be>
* NEWS: Document the language choice done by
'info [types|functions|variables]|rbreak'.
Philippe Waroquiers [Sun, 28 Oct 2018 14:11:37 +0000 (15:11 +0100)]
Document language choice in 'info [functions|variables|types]|rbreak' commands
doc/ChangeLog
2018-11-20 Philippe Waroquiers <philippe.waroquiers@skynet.be>
* gdb.texinfo (Examining the Symbol Table): Document language choice
for 'info types|functions|variables' commands.
(Setting Breakpoints): Document language choice to print
the functions in which a breakpoint is set.
Philippe Waroquiers [Sun, 28 Oct 2018 13:07:52 +0000 (14:07 +0100)]
Add a test to verify info [functions|variables|types]|rbreak respect language_mode.
2018-11-20 Philippe Waroquiers <philippe.waroquiers@skynet.be>
* gdb.ada/info_auto_lang.exp: New testcase.
* gdb.ada/info_auto_lang/global_pack.ads: New file.
* gdb.ada/info_auto_lang/proc_in_ada.adb: New file.
* gdb.ada/info_auto_lang/some_c.c: New file.
Philippe Waroquiers [Sun, 28 Oct 2018 12:57:51 +0000 (13:57 +0100)]
Use scoped_switch_to_sym_language_if_auto in symtab.c to switch language.
Use scoped_switch_to_sym_language_if_auto in treg_matches_sym_type_name to
replace the local logic that was doing the same as the new class
scoped_switch_to_sym_language_if_auto.
Use scoped_switch_to_sym_language_if_auto inside print_symbol_info, so
that symbol information is printed in the symbol language when
language mode is auto.
This modifies the behaviour of the test dw2-case-insensitive.exp,
as the function FUNC_lang is now printed with the Fortran syntax
(as declared in the .S file).
gdb/ChangeLog
2018-11-20 Philippe Waroquiers <philippe.waroquiers@skynet.be>
* symtab.c (treg_matches_sym_type_name): Use
scoped_switch_to_sym_language_if_auto instead of local logic.
(print_symbol_info): Use scoped_switch_to_sym_language_if_auto
to switch to SYM language when language mode is auto.
gdb/testsuite/ChangeLog
2018-11-20 Philippe Waroquiers <philippe.waroquiers@skynet.be>
* gdb.dwarf2/dw2-case-insensitive.exp: Update due to auto switch to
FUNC_lang language syntax.
Philippe Waroquiers [Sun, 28 Oct 2018 12:51:32 +0000 (13:51 +0100)]
Add class scoped_switch_to_sym_language_if_auto.
The class scoped_switch_to_sym_language_if_auto allows to switch in a scope
the current language to the language of a symbol when language mode is
set to auto.
2018-11-20 Philippe Waroquiers <philippe.waroquiers@skynet.be>
* language.h (scoped_switch_to_sym_language_if_auto): New class.
Philippe Waroquiers [Tue, 30 Oct 2018 20:56:32 +0000 (21:56 +0100)]
Test case for 'info variables|functions' with minimal symbols.
2018-11-20 Philippe Waroquiers <philippe.waroquiers@skynet.be>
* gdb.base/info_minsym.c: New file.
* gdb.base/info_minsym.exp: New file.
Philippe Waroquiers [Tue, 30 Oct 2018 20:20:52 +0000 (21:20 +0100)]
Fix regression 'info variables' does not show minimal symbols.
12615cba8411c8 Add [-q] [-t TYPEREGEXP] [NAMEREGEXP] args to info [args|functions|locals|variables]
introduced a regression that minimal symbols were not listed anymore, due to a wrong
condition checking the absence of a type regexp in the loop scanning the minimal symbols.
Instead, before entering the loop scanning the minimal symbols, check that we
do not have a type regexp, as we will never match a minimal symbol with
this type regexp.
With the fix in this patch, for this part of the code, we basically go back
to the GDB 8.2 logic, with just the addition of
&& !treg.has_value ())
to 'enter' in the minsym case.
This should ensure that at least there is no regression compared to 8.2,
when not using the new type matching argument, as there was no treg in 8.2.
2018-11-20 Philippe Waroquiers <philippe.waroquiers@skynet.be>
* symtab.c (search_symbols): Properly check absence of type regexp
before entering the loop scanning the minimal symbols.
Pedro Alves [Tue, 20 Nov 2018 19:04:14 +0000 (19:04 +0000)]
Fix gdb/ChangeLog formatting and date
John Darrington [Tue, 20 Nov 2018 17:50:30 +0000 (18:50 +0100)]
GDB: S12Z: new function s12z_extract_return_value
Make gdb aware of the return values of functions which
return in registers.
gdb/ChangeLog:
* s12z-tdep.c (s12z_extract_return_value): New function.
(inv_reg_perm) New array.
(s12z_return_value): Populate readbuf if non-null.
Eli Zaretskii [Tue, 20 Nov 2018 17:23:51 +0000 (19:23 +0200)]
Fix previous change in filestuff.c
gdb/ChangeLog:
* common/filestuff.c (O_NOINHERIT): Define if not defined.
Eli Zaretskii [Tue, 20 Nov 2018 16:49:43 +0000 (18:49 +0200)]
Avoid "Invalid parameter passed to C runtime function" warning
This warning was displayed by OutputDebugString on MinGW when
GDB was being debugged natively.
gdb/ChangeLog:
* common/filestuff.c (gdb_fopen_cloexec): Disable use of "e" mode
with 'fopen' also if O_CLOEXEC is equal to O_NOINHERIT, to cater
to MinGW fixed by Gnulib.
H.J. Lu [Tue, 20 Nov 2018 14:45:28 +0000 (06:45 -0800)]
readelf: Prune gaps warning in build notes
Since some object files may not have build notes, it is normal to have
gaps in build notes.
PR binutils/23898
* testsuite/lib/binutils-common.exp (prune_warnings_extra):
Prune gaps in build notes.
John Darrington [Thu, 8 Nov 2018 16:51:22 +0000 (17:51 +0100)]
GDB: S12Z: Add assertion
gdb/ChangeLog:
* s12z-tdep.c (s12z_frame_cache): Add an assertion.
Simon Marchi [Tue, 20 Nov 2018 03:35:19 +0000 (22:35 -0500)]
Remove displaced_step_inferior_state::next
Commit
39a36629f68e ("Use std::forward_list for displaced_step_inferior_states")
missed removing the "next" field, while changing the hand-made linked
list in favor of std::forward_list. This patch fixes that.
gdb/ChangeLog:
* infrun.c (displaced_step_inferior_state) <next>: Remove.
GDB Administrator [Tue, 20 Nov 2018 00:00:36 +0000 (00:00 +0000)]
Automatic date update in version.in
Tom Tromey [Tue, 9 Oct 2018 20:31:15 +0000 (14:31 -0600)]
Change get_filename_and_charpos to return void
The return value from get_filename_and_charpos is never used, so this
patch changes it to return void.
gdb/ChangeLog
2018-11-19 Tom Tromey <tom@tromey.com>
* source.c (get_filename_and_charpos): Return void.
Simon Marchi [Mon, 19 Nov 2018 22:27:13 +0000 (17:27 -0500)]
Fix inaccuracies in "info skip" help
"help info skip" uses "skip info" in its examples, which is not the same
(it ends up creating new skips). Also, the Type column that is referred
to doesn't exist today.
gdb/ChangeLog:
* skip.c (_initialize_step_skip): Fix "info skip" help.
Tom Tromey [Fri, 16 Nov 2018 22:30:35 +0000 (15:30 -0700)]
Handle TYPE_CODE_PTR when printing Rust types
This changes the Rust type printers to handle TYPE_CODE_PTR. The
current approach is not ideal, because currently the code can't
distinguish between mut and const, or between pointers and references.
(These are debuginfo deficiencies, for which there are rustc bugs on
file.)
Meanwhile, this at least clears up the case seen in PR rust/23625.
Tested on x86-64 Fedora 28. The nightly compiler gives the best
results, but I regression-tested with stable and beta as well.
gdb/ChangeLog
2018-11-16 Tom Tromey <tom@tromey.com>
PR rust/23625:
* rust-lang.c (rust_internal_print_type): Handle TYPE_CODE_PTR.
gdb/testsuite/ChangeLog
2018-11-19 Tom Tromey <tom@tromey.com>
PR rust/23625:
* gdb.rust/simple.exp: Add ptype test. Update expected output.
* gdb.rust/expr.exp: Update expected output. Change one test.
Tom Tromey [Mon, 19 Nov 2018 17:52:32 +0000 (10:52 -0700)]
Fix gdb.rust/simple.rs for more recent compilers
gdb.rust/simple.exp will fail when run with a recent version of rustc.
This patch fixes the test case so that it will continue to run.
Tested on x86-64 Fedora 28.
I also temporarily backed out the rust-lang.c from
commit
098b2108a2b61531c0bc8ea16854f773083a95d7, and verified that
this updated test still would have provoked the original bug.
gdb/testsuite/ChangeLog
2018-11-19 Tom Tromey <tom@tromey.com>
* gdb.rust/simple.rs: Don't initialize empty_enum_value.
Simon Marchi [Mon, 19 Nov 2018 16:05:13 +0000 (11:05 -0500)]
Use std::forward_list for displaced_step_inferior_states
Use std::forward_list instead of manually implemented list. This
simplifies a bit the code, especially around removal.
Regtested on the buildbot. There are some failures as always, but I
think they are unrelated.
gdb/ChangeLog:
* infrun.c (displaced_step_inferior_states): Change type to
std::forward_list.
(get_displaced_stepping_state): Adjust.
(displaced_step_in_progress_any_inferior): Adjust.
(add_displaced_stepping_state): Adjust.
(remove_displaced_stepping_state): Adjust.
John Darrington [Mon, 19 Nov 2018 16:36:42 +0000 (17:36 +0100)]
GDB: Add ChangeLog entry inadvertently omitted from commit.
Pedro Alves [Mon, 19 Nov 2018 15:08:46 +0000 (15:08 +0000)]
gdb.base/warning.exp tweaks
#1- Check that the warning is emitted.
#2- Avoid overriding INTERNAL_GDBFLAGS, as per documentated in
gdb/testsuite/README:
~~~
The testsuite does not override a value provided by the user.
~~~
We don't actually need to tweak INTERNAL_GDBFLAGS, we just need to
append out -data-directory to GDBFLAGS, because each passed
-data-directory option leads to a call to the warning:
$ ./gdb -data-directory=foo -data-directory=bar
Warning: foo: No such file or directory.
Warning: bar: No such file or directory.
[...]
gdb/ChangeLog
2018-11-19 Pedro Alves <palves@redhat.com>
* gdb.base/warning.exp: Don't override INTERNAL_FLAGS. Use
gdb_spawn_with_cmdline_opts instead of gdb_start. Check that we
see the expected warning.
GDB Administrator [Mon, 19 Nov 2018 00:00:29 +0000 (00:00 +0000)]
Automatic date update in version.in
Tom Tromey [Wed, 14 Nov 2018 16:29:51 +0000 (09:29 -0700)]
Fix ia64-linux-nat.c
PR build/23814 points out that ia64-linux-nat.c will not compile any
more. This patch fixes the problem. Thanks to Andreas Schwab for
trying the patch.
gdb/ChangeLog
2018-11-18 Tom Tromey <tom@tromey.com>
PR build/23814:
* target-delegates.c: Rebuild.
* ia64-linux-nat.c (class ia64_linux_nat_target)
<have_steppable_watchpoint>: Use override. Return true, not 1.
(ia64_linux_nat_target::can_use_hw_breakpoint): Rename. Remove
"self" argument.
(ia64_linux_nat_target::low_new_thread): Rename.
(class ia64_linux_nat_target) <read_description>: Don't declare.
* target.h (struct target_ops) <have_steppable_watchpoint>: Return
bool.
GDB Administrator [Sun, 18 Nov 2018 00:01:35 +0000 (00:01 +0000)]
Automatic date update in version.in
GDB Administrator [Sat, 17 Nov 2018 00:00:40 +0000 (00:00 +0000)]
Automatic date update in version.in
Alan Hayward [Thu, 11 Oct 2018 13:47:30 +0000 (14:47 +0100)]
Aarch64: Fix segfault when casting dummy calls
The following will segfault on aarch64 if foo is in another object,
was compiled as c++ and has no debug symbols:
(gdb) p (int)foo()
This is because aarch64_push_dummy_call determines the return type
of the function and then does not check for null pointer.
A null pointer for the return type means the call has no debug
information. For the code to get here, then the call must have
been cast, otherwise we'd error out sooner. In the case of a
no-debug-info call cast, the return type is the type the user
had cast the call to, but we do not have that information
available here.
However, aarch64_push_dummy_call only requires the return type in
order to calculate lang_struct_return. This information is available
in the return_method enum. The fix is to simply use this instead.
Adds testcase to check calls across objects, with all combinations
of c, c++, debug and no debug.
gdb/ChangeLog:
PR gdb/22736:
* aarch64-tdep.c (aarch64_push_dummy_call): Remove
lang_struct_return code.
gdb/testsuite/ChangeLog:
PR gdb/22736:
* gdb.cp/infcall-nodebug-lib.c: New test.
* gdb.cp/infcall-nodebug-main.c: New test.
* gdb.cp/infcall-nodebug.exp: New file.
Alan Hayward [Fri, 16 Nov 2018 11:21:04 +0000 (11:21 +0000)]
Pass return_method to _push_dummy_call
gdb/ChangeLog:
* aarch64-tdep.c (aarch64_push_dummy_call): Replace arg with
return_method.
* alpha-tdep.c (alpha_push_dummy_call): Likewise.
* amd64-tdep.c (amd64_push_arguments): Likewise.
(amd64_push_dummy_call): Likewise.
* amd64-windows-tdep.c (amd64_windows_push_arguments): Likewise.
* arc-tdep.c (arc_push_dummy_call): Likewise.
* arm-tdep.c (arm_push_dummy_call): Likewise.
* avr-tdep.c (avr_push_dummy_call): Likewise.
* bfin-tdep.c (bfin_push_dummy_call): Likewise.
* cris-tdep.c (cris_push_dummy_call): Likewise.
* csky-tdep.c (csky_push_dummy_call): Likewise.
* frv-tdep.c (frv_push_dummy_call): Likewise.
* gdbarch.c: Regenerate.
* gdbarch.h: Regenerate.
* gdbarch.sh (gdbarch_push_dummy_call): Replace arg with
return_method.
* h8300-tdep.c (h8300_push_dummy_call): Likewise.
* hppa-tdep.c (hppa32_push_dummy_call): Likewise.
(hppa64_push_dummy_call): Likewise.
* i386-darwin-tdep.c (i386_darwin_push_dummy_call): Likewise.
* i386-tdep.c (i386_push_dummy_call): Likewise.
* ia64-tdep.c (ia64_push_dummy_call): Likewise.
* infcall.c (call_function_by_hand_dummy): Likewise.
* iq2000-tdep.c (iq2000_push_dummy_call): Likewise.
* lm32-tdep.c (lm32_push_dummy_call): Likewise.
* m32c-tdep.c (m32c_push_dummy_call): Likewise.
* m32r-tdep.c (m32r_push_dummy_call): Likewise.
* m68hc11-tdep.c (m68hc11_push_dummy_call): Likewise.
* m68k-tdep.c (m68k_push_dummy_call): Likewise.
* mep-tdep.c (mep_push_dummy_call): Likewise.
* mips-tdep.c (mips_eabi_push_dummy_call): Likewise.
(mips_n32n64_push_dummy_call): Likewise.
(mips_o32_push_dummy_call): Likewise.
(mips_o64_push_dummy_call): Likewise.
* mn10300-tdep.c (mn10300_push_dummy_call): Likewise.
* msp430-tdep.c (msp430_push_dummy_call): Likewise.
* nds32-tdep.c (nds32_push_dummy_call): Likewise.
* nios2-tdep.c (nios2_push_dummy_call): Likewise.
* or1k-tdep.c (or1k_push_dummy_call): Likewise.
* ppc-sysv-tdep.c (ppc_sysv_abi_push_dummy_call): Likewise.
(ppc64_sysv_abi_push_dummy_call): Likewise.
* ppc-tdep.h (ppc_sysv_abi_push_dummy_call): Likewise.
(ppc64_sysv_abi_push_dummy_call): Likewise.
* riscv-tdep.c (riscv_push_dummy_call): Likewise.
* rl78-tdep.c (rl78_push_dummy_call): Likewise.
* rs6000-aix-tdep.c (rs6000_push_dummy_call): Likewise.
* rs6000-lynx178-tdep.c (rs6000_lynx178_push_dummy_call): Likewise.
* rx-tdep.c (rx_push_dummy_call): Likewise.
* s390-tdep.c (s390_push_dummy_call): Likewise.
* score-tdep.c (score_push_dummy_call): Likewise.
* sh-tdep.c (sh_push_dummy_call_fpu): Likewise.
(sh_push_dummy_call_nofpu): Likewise.
* sparc-tdep.c (sparc32_store_arguments): Likewise.
(sparc32_push_dummy_call): Likewise.
* sparc64-tdep.c (sparc64_store_arguments): Likewise.
(sparc64_push_dummy_call): Likewise.
* spu-tdep.c (spu_push_dummy_call): Likewise.
* tic6x-tdep.c (tic6x_push_dummy_call): Likewise.
* tilegx-tdep.c (tilegx_push_dummy_call): Likewise.
* v850-tdep.c (v850_push_dummy_call): Likewise.
* vax-tdep.c (vax_push_dummy_call): Likewise.
* xstormy16-tdep.c (xstormy16_push_dummy_call): Likewise.
* xtensa-tdep.c (xtensa_push_dummy_call): Likewise.
Alan Hayward [Fri, 16 Nov 2018 11:21:00 +0000 (11:21 +0000)]
Use enum for return method for dummy calls
In call_function_by_hand_dummy, struct_return and hidden_first_param_p
are used to represent a single concept. Replace with an enum.
gdb/ChangeLog:
* gdbarch.sh (enum function_call_return_method): Add enum.
* gdbarch.h: Regenerate.
* infcall.c (call_function_by_hand_dummy): Replace vars with enum.
Nick Clifton [Fri, 16 Nov 2018 11:35:24 +0000 (11:35 +0000)]
(Another) Updated Spanish translation for the ld subdirectory.
* po/es.po: Updated Spanish translation.
GDB Administrator [Fri, 16 Nov 2018 00:01:06 +0000 (00:01 +0000)]
Automatic date update in version.in
Joel Brobecker [Thu, 15 Nov 2018 15:53:57 +0000 (10:53 -0500)]
Move copy_bitwise unittests to own unittest file
Now that copy_bitwise has been made public, and considering that
its implementation could move to a different file again in the future,
this patch moves its unittest to its own file in gdb/unittests.
gdb/ChangeLog:
* unittests/copy_bitwise-selftests.c: New file.
* utils.c (selftests::bits_to_str, selftests::check_copy_bitwise)
(selftests::copy_bitwise_tests): Delete, moving this code to
unittests/copy_bitwise-selftests.c instead.
(_initialize_utils): Do not register copy_bitwise tests.
* Makefile.in (SUBDIR_UNITTESTS_SRCS): Add
unittests/copy_bitwise-selftests.c.
Tested on x86_64-linux using the official testsuite, but also by
verifying that "maintenance selftests" still runs the copy_bitwise
tests.
Nick Clifton [Thu, 15 Nov 2018 11:55:24 +0000 (11:55 +0000)]
Updated Spanish translation for the ld subdirectory.
ld * po/es.po: Updated Spanish translation.
GDB Administrator [Thu, 15 Nov 2018 00:00:41 +0000 (00:00 +0000)]
Automatic date update in version.in
Joel Brobecker [Wed, 14 Nov 2018 23:18:49 +0000 (18:18 -0500)]
delete ada-lang.c::move_bits, sharing and re-using copy_bitwise instead
This patch deletes ada-lang.c's move_bits function entirely, and
replaces all calls to it by calls to copy_bitwise instead. Because
the latter function was declared locally inside dwarf2loc.c, this
patch also move the function to a common area, and makes it non-static.
gdb/ChangeLog:
* ada-lang.c (move_bits): Delete. Update all callers to use
copy_bitwise instead.
* dwarf2loc.c (copy_bitwise, bits_to_str::bits_to_str)
(selftests::check_copy_bitwise, selftests::copy_bitwise_tests):
Move from here to utils.c.
(_initialize_dwarf2loc): Remove call to register copy_bitwise
selftests.
* utils.h (copy_bitwise): Add declaration.
* utils.c (copy_bitwise, bits_to_str::bits_to_str)
(selftests::check_copy_bitwise, selftests::copy_bitwise_tests):
Moved here from dwarf2loc.c.
(_initialize_utils): Register copy_bitwise selftests.
Tested on x86_64-linux, no regression. Also tested using AdaCore's
testsuite on a collection of small endian and big endian platforms.
Jim Wilson [Wed, 14 Nov 2018 22:54:10 +0000 (14:54 -0800)]
RISC-V: Fix unnamed arg alignment in registers.
For riscv64-linux target, second half of fix for
FAIL: gdb.base/gnu_vector.exp: call add_various_floatvecs
Unnamed arguments with 2*XLEN alignment are passed in aligned register pairs.
gdb/
* riscv-tdep.c (struct riscv_arg_info): New field is_unnamed.
(riscv_call_arg_scalar_int): If unnamed arg with twice xlen alignment,
then increment next_regnum if odd.
(riscv_arg_location): New arg is_unnamed. Set ainfo->is_unnamed.
(riscv_push_dummy_call): New local ftype. Call check_typedef to set
function type. Pass new arg to riscv_arg_location based on function
type.
(riscv_return_value): Pass new arg to riscv_arg_location.
Jim Wilson [Wed, 14 Nov 2018 22:52:34 +0000 (14:52 -0800)]
RISC-V: Handle vector type alignment.
For riscv64-linux target, first half of fix for
FAIL: gdb.base/gnu_vector.exp: call add_various_floatvecs
GCC gives vectors natural aligment based on total size, not element size,
bounded by the maximum supported type alignment.
gdb/
* riscv-tdep.c (BIGGEST_ALIGNMENT): New.
(riscv_type_alignment) <TYPE_CODE_ARRAY>: If TYPE_VECTOR, return min
of TYPE_LENGTH and BIGGEST_ALIGNMENT.
Jim Wilson [Wed, 14 Nov 2018 22:51:40 +0000 (14:51 -0800)]
RISC-V: Give stack slots same align as XLEN.
For riscv64-linux target, fixes
FAIL: gdb.base/gnu_vector.exp: call add_many_charvecs
Ensure that stack slots are always the same alignment as XLEN by rounding
up arg align to xlen.
gdb/
* riscv-tdep.c (riscv_call_arg_scalar_int): Use std::min when
setting len. New local align, set to max of arg align and xlen,
and pass to first riscv_assign_stack_location call.
GDB Administrator [Wed, 14 Nov 2018 00:01:05 +0000 (00:01 +0000)]
Automatic date update in version.in
Jim Wilson [Tue, 13 Nov 2018 23:50:38 +0000 (15:50 -0800)]
RISC-V: Improve linker error for FP mismatch.
bfd/
* elfnn-riscv.c (riscv_float_abi_string): New.
(_bfd_riscv_elf_merge_private_bfd_data): Use it for error message.
Francois H. Theron [Tue, 13 Nov 2018 10:33:16 +0000 (12:33 +0200)]
opcodes/nfp: Fix disassembly of crc[] with swapped operands.
The decoding of the CRC operation in alu instructions was using bits
from the instruction word directly, instead of srcA which would be
different if the swap bit was set.
Signed-off-by: Francois H. Theron <francois.theron@netronome.com>
Thomas Preud'homme [Tue, 13 Nov 2018 12:19:28 +0000 (12:19 +0000)]
[ARM] Improve indentation of ARM architecture declarations
This commit cleans up indentation of ARM architecture declaration,
namely entries of arm_archs and definition of macros ARM_EXT_*,
ARM_AEXT_*, ARM_AEXT2_*, FPU_EXT_*, FPU_ARCH_* and ARM_ARCH_*. It also
gets rid of unused ARM_ARCH_V6M-ONLY and merge AEM_AEXT_V6M_ONLY in
ARM_AEXT_V6M now sole user.
gas/
2018-11-13 Thomas Preud'homme <thomas.preudhomme@arm.com>
* config/tc-arm.c (arm_archs): Reindent.
include/
2018-11-13 Thomas Preud'homme <thomas.preudhomme@arm.com>
* opcode/arm.h (ARM_AEXT_V6M_ONLY): Merge into its use in ARM_AEXT_V6M.
(ARM_ARCH_V6M_ONLY): Remove.
(ARM_EXT_V1, ARM_EXT_V2, ARM_EXT_V2S, ARM_EXT_V3, ARM_EXT_V3M,
ARM_EXT_V4, ARM_EXT_V4T, ARM_EXT_V5, ARM_EXT_V5T, ARM_EXT_V5ExP,
ARM_EXT_V5E, ARM_EXT_V5J, ARM_EXT_V6, ARM_EXT_V6K, ARM_EXT_V8,
ARM_EXT_V6T2, ARM_EXT_DIV, ARM_EXT_V5E_NOTM, ARM_EXT_V6_NOTM,
ARM_EXT_V7, ARM_EXT_V7A, ARM_EXT_V7R, ARM_EXT_V7M, ARM_EXT_V6M,
ARM_EXT_BARRIER, ARM_EXT_THUMB_MSR, ARM_EXT_V6_DSP, ARM_EXT_MP,
ARM_EXT_SEC, ARM_EXT_OS, ARM_EXT_ADIV, ARM_EXT_VIRT, ARM_EXT2_PAN,
ARM_EXT2_V8_2A, ARM_EXT2_V8M, ARM_EXT2_ATOMICS, ARM_EXT2_V6T2_V8M,
ARM_EXT2_FP16_INST, ARM_EXT2_V8M_MAIN, ARM_EXT2_RAS, ARM_EXT2_V8_3A,
ARM_EXT2_V8A, ARM_EXT2_V8_4A, ARM_EXT2_FP16_FML, ARM_EXT2_V8_5A,
ARM_EXT2_SB, ARM_EXT2_PREDRES, ARM_CEXT_XSCALE, ARM_CEXT_MAVERICK,
ARM_CEXT_IWMMXT, ARM_CEXT_IWMMXT2, FPU_ENDIAN_PURE, FPU_ENDIAN_BIG,
FPU_FPA_EXT_V1, FPU_FPA_EXT_V2, FPU_MAVERICK, FPU_VFP_EXT_V1xD,
FPU_VFP_EXT_V1, FPU_VFP_EXT_V2, FPU_VFP_EXT_V3xD, FPU_VFP_EXT_V3,
FPU_NEON_EXT_V1, FPU_VFP_EXT_D32, FPU_VFP_EXT_FP16, FPU_NEON_EXT_FMA,
FPU_VFP_EXT_FMA, FPU_VFP_EXT_ARMV8, FPU_NEON_EXT_ARMV8,
FPU_CRYPTO_EXT_ARMV8, CRC_EXT_ARMV8, FPU_VFP_EXT_ARMV8xD,
FPU_NEON_EXT_RDMA, FPU_NEON_EXT_DOTPROD, ARM_AEXT_V1, ARM_AEXT_V2,
ARM_AEXT_V2S, ARM_AEXT_V3, ARM_AEXT_V3M, ARM_AEXT_V4xM, ARM_AEXT_V4,
ARM_AEXT_V4TxM, ARM_AEXT_V4T, ARM_AEXT_V5xM, ARM_AEXT_V5,
ARM_AEXT_V5TxM, ARM_AEXT_V5T, ARM_AEXT_V5TExP, ARM_AEXT_V5TE,
ARM_AEXT_V5TEJ, ARM_AEXT_V6, ARM_AEXT_V6K, ARM_AEXT_V6Z, ARM_AEXT_V6KZ,
ARM_AEXT_V6T2, ARM_AEXT_V6KT2, ARM_AEXT_V6ZT2, ARM_AEXT_V6KZT2,
ARM_AEXT_V7_ARM, ARM_AEXT_V7A, ARM_AEXT_V7VE, ARM_AEXT_V7R,
ARM_AEXT_NOTM, ARM_AEXT_V6M_ONLY, ARM_AEXT_V6M, ARM_AEXT_V6SM,
ARM_AEXT_V7M, ARM_AEXT_V7, ARM_AEXT_V7EM, ARM_AEXT_V8A, ARM_AEXT2_V8A,
ARM_AEXT2_V8_1A, ARM_AEXT2_V8_2A, ARM_AEXT2_V8_3A, ARM_AEXT2_V8_4A,
ARM_AEXT2_V8_5A, ARM_AEXT_V8M_BASE, ARM_AEXT_V8M_MAIN,
ARM_AEXT_V8M_MAIN_DSP, ARM_AEXT2_V8M, ARM_AEXT2_V8M_BASE,
ARM_AEXT2_V8M_MAIN, ARM_AEXT2_V8M_MAIN_DSP, ARM_AEXT_V8R,
ARM_AEXT2_V8R, FPU_VFP_V1xD, FPU_VFP_V1, FPU_VFP_V2, FPU_VFP_V3D16,
FPU_VFP_V3, FPU_VFP_V3xD, FPU_VFP_V4D16, FPU_VFP_V4, FPU_VFP_V4_SP_D16,
FPU_VFP_V5D16, FPU_VFP_ARMV8, FPU_NEON_ARMV8, FPU_CRYPTO_ARMV8,
FPU_VFP_HARD, FPU_FPA, FPU_ARCH_VFP, FPU_ARCH_FPE, FPU_ARCH_FPA,
FPU_ARCH_VFP_V1xD, FPU_ARCH_VFP_V1, FPU_ARCH_VFP_V2,
FPU_ARCH_VFP_V3D16_FP16, FPU_ARCH_VFP_V3, FPU_ARCH_VFP_V3_FP16,
FPU_ARCH_VFP_V3xD_FP16, FPU_ARCH_NEON_V1, FPU_ARCH_VFP_V3_PLUS_NEON_V1,
FPU_ARCH_NEON_FP16, FPU_ARCH_VFP_HARD, FPU_ARCH_VFP_V4,
FPU_ARCH_VFP_V4D16, FPU_ARCH_VFP_V4_SP_D16, FPU_ARCH_VFP_V5D16,
FPU_ARCH_VFP_V5_SP_D16, FPU_ARCH_NEON_VFP_V4, FPU_ARCH_VFP_ARMV8,
FPU_ARCH_NEON_VFP_ARMV8, FPU_ARCH_CRYPTO_NEON_VFP_ARMV8,
FPU_ARCH_CRYPTO_NEON_VFP_ARMV8_DOTPROD, ARCH_CRC_ARMV8,
FPU_ARCH_NEON_VFP_ARMV8_1, FPU_ARCH_CRYPTO_NEON_VFP_ARMV8_1,
FPU_ARCH_DOTPROD_NEON_VFP_ARMV8, ARM_ARCH_V1, ARM_ARCH_V2,
ARM_ARCH_V2S, ARM_ARCH_V3, ARM_ARCH_V3M, ARM_ARCH_V4xM, ARM_ARCH_V4,
ARM_ARCH_V4TxM, ARM_ARCH_V4T, ARM_ARCH_V5xM, ARM_ARCH_V5,
ARM_ARCH_V5TxM, ARM_ARCH_V5T, ARM_ARCH_V5TExP, ARM_ARCH_V5TE,
ARM_ARCH_V5TEJ, ARM_ARCH_V6, ARM_ARCH_V6K, ARM_ARCH_V6Z, ARM_ARCH_V6KZ,
ARM_ARCH_V6T2, ARM_ARCH_V6KT2, ARM_ARCH_V6ZT2, ARM_ARCH_V6KZT2,
ARM_ARCH_V6M, ARM_ARCH_V6SM, ARM_ARCH_V7, ARM_ARCH_V7A, ARM_ARCH_V7VE,
ARM_ARCH_V7R, ARM_ARCH_V7M, ARM_ARCH_V7EM, ARM_ARCH_V8A,
ARM_ARCH_V8A_CRC, ARM_ARCH_V8_1A, ARM_ARCH_V8_2A, ARM_ARCH_V8_3A,
ARM_ARCH_V8_4A, ARM_ARCH_V8_5A, ARM_ARCH_V8M_BASE, ARM_ARCH_V8M_MAIN,
ARM_ARCH_V8M_MAIN_DSP, ARM_ARCH_V8R): Reindent.
GDB Administrator [Tue, 13 Nov 2018 00:00:40 +0000 (00:00 +0000)]
Automatic date update in version.in
H.J. Lu [Mon, 12 Nov 2018 17:29:49 +0000 (09:29 -0800)]
i386: Accept both .plt.got and .plt.sec sections
Glibc commit:
commit
a15529fda8d132621328c3fe32997a3d9c55aef4
Author: H.J. Lu <hjl.tools@gmail.com>
Date: Mon May 14 09:23:55 2018 -0700
i386: Replace PREINIT_FUNCTION@PLT with *%eax in call
Since we have loaded address of PREINIT_FUNCTION into %eax, we can
avoid extra branch to PLT slot.
changed __gmon_start__ relocations in crt1.o from
00000015 0000092b R_386_GOT32X
00000000 __gmon_start__
0000001e 00000904 R_386_PLT32
00000000 __gmon_start__
to
00000015 00000a2b R_386_GOT32X
00000000 __gmon_start__
As the result, .plt.sec section may be generated instead of .plt.got
section, depending on __gmon_start__ relocations.
* testsuite/ld-i386/plt-main-ibt.dd: Accept both .plt.got and
.plt.sec sections.
projects / external / binutils.git / log