Nick Clifton [Fri, 6 Nov 2020 12:41:29 +0000 (12:41 +0000)]
Updated Serbian translation for the ld subdirectory
Tom Tromey [Fri, 6 Nov 2020 01:27:43 +0000 (18:27 -0700)]
Remove objfile parameter from abbrev_table::read
In a longer series that I am working on, I needed to remove the
objfile parameter from abbrev_table::read. It seemed to me that this
was a simple and relatively harmless patch, so I'm sending it now.
gdb/ChangeLog
2020-11-05 Tom Tromey <tom@tromey.com>
* dwarf2/read.c (read_cutu_die_from_dwo)
(cutu_reader::cutu_reader, cutu_reader::cutu_reader)
(build_type_psymtabs_1): Update.
* dwarf2/abbrev.h (struct abbrev_table): Remove objfile
parameter.
* dwarf2/abbrev.c (abbrev_table::read): Remove objfile parameter.
Don't read section. Add assert.
GDB Administrator [Fri, 6 Nov 2020 00:00:16 +0000 (00:00 +0000)]
Automatic date update in version.in
GDB Administrator [Thu, 5 Nov 2020 00:00:13 +0000 (00:00 +0000)]
Automatic date update in version.in
Przemyslaw Wirkus [Wed, 4 Nov 2020 20:47:06 +0000 (20:47 +0000)]
aarch64: Update feature RAS system registers
This patch:
+ updates RAS feature system registers with new RAS 1.1 regs.
+ extends RAS/RAS 1.1 support for all architecture levels of Armv8-A.
Please note that early Armv8-A architectures do not officially support RAS
extension.
Rationale of the patch:
To ease development so that user-friendly RAS system registers operands can be
used. Certain use cases require developers to enable only more generic
architecture (e.g. -march=armv8-a) during system development. Users must use
RAS extension registers bearing in mind that system they use must support it.
The RAS (Reliability, Availability, Serviceability) extension is a
system-level extension that defines a number of system registers.
RAS 1.1 (FEAT_RASv1p1) introduces five new system registers:
ERXPFGCTL_EL1, ERXPFGCDN_EL1, ERXMISC2_EL1, ERXMISC3_EL1 and
ERXPFGF_EL1.
For details see [0].
[0] https://developer.arm.com/docs/ddi0595/i/
Tom Tromey [Wed, 4 Nov 2020 16:17:58 +0000 (09:17 -0700)]
Handle __XVL fields in Ada type printing
Sometimes the Ada compiler will emit an "__XVL" name for a field. The
Ada compiler describes:
-- Second, the variable-length fields themselves are represented by
-- replacing the type by a special access type. The designated type of
-- this access type is the original variable-length type, and the fact
-- that this field has been transformed in this way is signalled by
-- encoding the field name as:
-- field___XVL
Currently gdb describes such fields as having "access" type, but this
is inaccurate. This patch changes gdb to avoid printing "access" in
this case.
gdb/ChangeLog
2020-11-04 Tom Tromey <tromey@adacore.com>
* ada-typeprint.c (ada_print_type): Handle __XVL fields.
gdb/testsuite/ChangeLog
2020-11-04 Tom Tromey <tromey@adacore.com>
* gdb.ada/funcall_ref.exp: Update.
* gdb.ada/var_rec_arr.exp: Update.
Tom Tromey [Wed, 4 Nov 2020 16:17:58 +0000 (09:17 -0700)]
Print Ada type name in more cases
In some cases the name of an Ada type cannot be decoded by
decoded_type_name. For example, the name
"p__complex_variable_record_type__T9s" in the included test case is
rejected due to the "T". This causes ptype to display the full
contents of a record type -- when in fact the name is available and
ought to be printed.
Fixing this in decoded_type_name isn't possible because the "__T" name
is not the real name of the type -- it is just a compiler-assigned
name of convenience.
This patch fixes the problem by using the resolved type's name when
the original type's name isn't suitable.
gdb/ChangeLog
2020-11-04 Tom Tromey <tromey@adacore.com>
* ada-typeprint.c (ada_print_type): Handle __T types.
gdb/testsuite/ChangeLog
2020-11-04 Tom Tromey <tromey@adacore.com>
* gdb.ada/rec_ptype.exp: New file.
* gdb.ada/rec_ptype/main.adb: New file.
* gdb.ada/rec_ptype/p.ads: New file.
Tom Tromey [Wed, 4 Nov 2020 15:49:16 +0000 (08:49 -0700)]
Recognize names of array types
With -fgnat-encodings=minimal, Gnat will emit DW_TAG_array_type that
has a name -- and this is the only time the name is emitted for the
type. (For comparison, in C a typedef would be emitted in this
situation.)
This patch changes gdb to recognize the name of an array type. This
is limited to Ada, to avoid any potential problems if some rogue DWARF
happens to name an array type in some other language, and to avoid
loading unnecessary partial DIEs.
gdb/ChangeLog
2020-11-04 Tom Tromey <tromey@adacore.com>
* dwarf2/read.c (add_partial_symbol, process_die):
Handle DW_TAG_array_type.
(is_type_tag_for_partial): Add "lang" parameter.
(load_partial_dies, new_symbol): Handle DW_TAG_array_type.
gdb/testsuite/ChangeLog
2020-11-04 Tom Tromey <tromey@adacore.com>
* gdb.ada/tick_length_array_enum_idx.exp: Add ptype test.
* gdb.ada/tick_length_array_enum_idx/foo_n207_004.adb
(PT_Full): New variable.
* gdb.ada/tick_length_array_enum_idx/pck.adb
(Full_PT): New type.
Tom Tromey [Wed, 4 Nov 2020 15:49:16 +0000 (08:49 -0700)]
Use bit stride when taking slice of array
Testing with -fgnat-encodings=minimal showed that the Ada code failed
to use the bit stride of an array when taking a slice. This patch
fixes the oversight.
gdb/ChangeLog
2020-11-04 Tom Tromey <tromey@adacore.com>
* ada-lang.c (ada_value_slice_from_ptr): Use bit size.
gdb/testsuite/ChangeLog
2020-11-04 Tom Tromey <tromey@adacore.com>
* gdb.ada/array_of_variant.exp: New file.
* gdb.ada/array_of_variant/p.adb: New file.
* gdb.ada/array_of_variant/pck.ads: New file.
* gdb.ada/array_of_variant/pck.adb: New file.
Tom Tromey [Wed, 4 Nov 2020 15:49:16 +0000 (08:49 -0700)]
Only use stride for final element type
A DWARF array type may specify a stride. Currently, the DWARF reader
applies this stride to every dimension of an array. However, this
seems incorrect to me -- only the innermost array ought to use the
stride, while outer arrays should compute a stride based on the size
of the inner arrays. This patch arranges to apply the stride only to
the innermost array type. This fixes a bug noticed when running some
Ada tests with -fgnat-encodings=minimal.
gdb/ChangeLog
2020-11-04 Tom Tromey <tromey@adacore.com>
* dwarf2/read.c (read_array_type): Only apply stride to innermost
array.
gdb/testsuite/ChangeLog
2020-11-04 Tom Tromey <tromey@adacore.com>
* gdb.ada/enum_idx_packed.exp: Add test.
* gdb.ada/enum_idx_packed/foo.adb (Multi_Access):
New variable.
* gdb.ada/enum_idx_packed/pck.ads (Short)
(Multi_Dimension, Multi_Dimension_Access): New types.
Tom Tromey [Wed, 4 Nov 2020 15:49:16 +0000 (08:49 -0700)]
Fix bit strides for -fgnat-encodings=minimal
With -fgnat-encodings=minimal, the enum_idx_packed.exp test will fail.
In this test case, we have an array (with dynamic length) of arrays,
and the inner array has a bit stride. In this situation, the outer
array's bit stride must be updated to account for the entire bit
length of the inner array.
Here, again, some tests must be kfail'd when an older version of GNAT
is in use.
gdb/ChangeLog
2020-11-04 Tom Tromey <tromey@adacore.com>
* gdbtypes.c (update_static_array_size): Handle bit stride.
gdb/testsuite/ChangeLog
2020-11-04 Tom Tromey <tromey@adacore.com>
* gdb.ada/enum_idx_packed.exp: Test two forms of -fgnat-encodings.
Tom Tromey [Wed, 4 Nov 2020 15:49:16 +0000 (08:49 -0700)]
Resolve dynamic type in ada_value_struct_elt
An internal AdaCore test case showed that gdb mishandled a case of
assigning to an array element in a packed array inside a variant
record. This problem can only be seen with -fgnat-encodings=minimal,
which isn't yet widely used. This patch fixes the bug, and also
updates an existing test to check this case.
gdb/ChangeLog
2020-11-04 Tom Tromey <tromey@adacore.com>
* ada-lang.c (ada_value_struct_elt): Resolve dynamic type.
gdb/testsuite/ChangeLog
2020-11-04 Tom Tromey <tromey@adacore.com>
* gdb.ada/set_pckd_arr_elt.exp: Also test
-fgnat-encodings=minimal. Add tests.
* gdb.ada/set_pckd_arr_elt/foo.adb (Foo): Add VA variable.
Call Update_Small a second time.
* gdb.ada/set_pckd_arr_elt/pck.adb (New_Variant): New function.
* gdb.ada/set_pckd_arr_elt/pck.ads (Buffer, Variant)
(Variant_Access): New types.
(New_Variant): Declare.
Tom Tromey [Wed, 4 Nov 2020 15:49:16 +0000 (08:49 -0700)]
Reject slicing a packed array
In Ada mode, gdb rejects slicing a packed array. However, with
-fgnat-encodings=minimal, gdb will instead print incorrect results.
This patch changes gdb to also reject slicing a packed array in this
mode.
FWIW I believe that this rejection is a gdb limitation. Removing it
looked complicated, though, and meanwhile my main goal for the time
being is to bring the DWARF encodings up to par with Gnat encodings.
gdb/ChangeLog
2020-11-04 Tom Tromey <tromey@adacore.com>
* ada-lang.c (ada_is_any_packed_array_type): New function.
(ada_evaluate_subexp) <case TERNOP_SLICE>: Use it.
gdb/testsuite/ChangeLog
2020-11-04 Tom Tromey <tromey@adacore.com>
* gdb.ada/mod_from_name.exp: Test printing slice.
Tom Tromey [Wed, 4 Nov 2020 15:49:16 +0000 (08:49 -0700)]
Synthesize array descriptors with -fgnat-encodings=minimal
When -fgnat-encodings=minimal, the compiler will avoid the special
GNAT-specific "encodings" format, and instead emit ordinary DWARF as
much as possible.
When emitting DWARF for thick pointers to arrays, the compiler emits
something like:
<1><11db>: Abbrev Number: 7 (DW_TAG_array_type)
<11dc> DW_AT_name : (indirect string, offset: 0x1bb8): string
<11e0> DW_AT_data_location: 2 byte block: 97 6
(DW_OP_push_object_address; DW_OP_deref)
<11e3> DW_AT_type : <0x1173>
<11e7> DW_AT_sibling : <0x1201>
<2><11eb>: Abbrev Number: 8 (DW_TAG_subrange_type)
<11ec> DW_AT_type : <0x1206>
<11f0> DW_AT_lower_bound : 6 byte block: 97 23 8 6 94 4
(DW_OP_push_object_address; DW_OP_plus_uconst: 8; DW_OP_deref;
DW_OP_deref_size: 4)
<11f7> DW_AT_upper_bound : 8 byte block: 97 23 8 6 23 4 94 4
(DW_OP_push_object_address; DW_OP_plus_uconst: 8; DW_OP_deref;
DW_OP_plus_uconst: 4; DW_OP_deref_size: 4)
If you read between the lines, the "array" is actually a structure
with two elements. One element is a pointer to the array data, and
the other structure describes the bounds of the array. However, the
compiler doesn't emit this explicitly, but instead hides it behind
these location expressions.
gdb can print such objects, but currently there is no way to construct
one. So, this patch adds some code to the DWARF reader to recognize
this construct, and then synthesize an array descriptor. This
descriptor is then handled by the existing Ada code.
Internally, we've modified GCC to emit the structure type explicitly
(we will of course be sending this upstream). In this case, the array
still has the DW_AT_data_location, though. This patch also modifies
gdb to ignore the data location in this case -- this is preferred
because the location only serves to confuse the Ada code that already
knows where to find the data. In the future I hope to move some of
this handling to the gdb core, so that Ada-specific hacks are not
needed; however I have not yet done this.
Because parallel types are not emitted with -fgnat-encodings=minimal,
some changes to the Ada code were also required.
The change ina ada-valprint.c was needed to avoid infinite recursion
when trying to print a constrained packed array. And, there didn't
seem to be any need for a recursive call here -- the value could
simply be returned instead.
Finally, gdb.ada/frame_arg_lang.exp no longer works in C mode, because
we drop back to the structure approach now. As mentioned earlier,
future work should probably fix this again; meanwhile, this doesn't
seem to be a big problem, because it is what is currently done (users
as a rule don't use -fgnat-encodings=minimal -- which is what I am
ultimately trying to fix).
Note that a couple of tests have an added KFAIL. Some
-fgnat-encodings=minimal changes have landed in GNAT, and you need
something very recent to pass all the tests. I'm using git gcc to
accomplish this.
gdb/ChangeLog
2020-11-04 Tom Tromey <tromey@adacore.com>
* dwarf2/read.c (recognize_bound_expression)
(quirk_ada_thick_pointer): New functions.
(read_array_type): Call quirk_ada_thick_pointer.
(set_die_type): Add "skip_data_location" parameter.
(quirk_ada_thick_pointer): New function.
(process_structure_scope): Call quirk_ada_thick_pointer.
* ada-lang.c (ada_is_unconstrained_packed_array_type)
(decode_packed_array_bitsize): Handle thick pointers without
parallel types.
(ada_is_gnat_encoded_packed_array_type): Rename from
ada_is_packed_array_type.
(ada_is_constrained_packed_array_type): Update.
* ada-valprint.c (ada_val_print_gnat_array): Remove.
(ada_value_print_1): Use ada_get_decoded_value.
gdb/testsuite/ChangeLog
2020-11-04 Tom Tromey <tromey@adacore.com>
* gdb.ada/O2_float_param.exp: Test different -fgnat-encodings
values.
* gdb.ada/access_to_unbounded_array.exp: Test different
-fgnat-encodings values.
* gdb.ada/big_packed_array.exp: Test different -fgnat-encodings
values.
* gdb.ada/arr_enum_idx_w_gap.exp: Test different -fgnat-encodings
values.
* gdb.ada/array_ptr_renaming.exp: Test different -fgnat-encodings
values.
* gdb.ada/array_of_variable_length.exp: Test different
-fgnat-encodings values.
* gdb.ada/arrayparam.exp: Test different -fgnat-encodings values.
* gdb.ada/arrayptr.exp: Test different -fgnat-encodings values.
* gdb.ada/frame_arg_lang.exp: Revert -fgnat-encodings=minimal
change.
* gdb.ada/mi_string_access.exp: Test different -fgnat-encodings
values.
* gdb.ada/mod_from_name.exp: Test different -fgnat-encodings values.
* gdb.ada/out_of_line_in_inlined.exp: Test different
-fgnat-encodings values.
* gdb.ada/packed_array.exp: Test different -fgnat-encodings
values.
* gdb.ada/pckd_arr_ren.exp: Test different -fgnat-encodings
values.
* gdb.ada/unc_arr_ptr_in_var_rec.exp: Test different
-fgnat-encodings values.
* gdb.ada/variant_record_packed_array.exp: Test different
-fgnat-encodings values.
Tom Tromey [Wed, 4 Nov 2020 15:49:16 +0000 (08:49 -0700)]
Fix decoding of multi-dimensional constrained packed arrays
Printing a multi-dimensional constrained packed array in Ada would not
show the correct values. The bug here is that, when decoding the type
of such an array, only the innermost dimension's element bitsize would
be correct. For outer dimensions, the bitsize must account for the
size of each sub-array, but this was not done.
This patch fixes the problem by arranging to compute these sizes after
decoding the array type. I've included a bit more test case than is
strictly necessary -- the current test here was derived from an
internal test, and this patch brings the two into sync.
gdb/ChangeLog
2020-11-04 Tom Tromey <tromey@adacore.com>
* ada-lang.c (recursively_update_array_bitsize): New function.
(decode_constrained_packed_array_type): Call it.
gdb/testsuite/ChangeLog
2020-11-04 Tom Tromey <tromey@adacore.com>
* gdb.ada/enum_idx_packed.exp: Add tests.
* gdb.ada/enum_idx_packed/foo.adb: Add variables.
* gdb.ada/enum_idx_packed/pck.adb: Add functions.
* gdb.ada/enum_idx_packed/pck.ads: Add types, function
declarations.
Tom Tromey [Wed, 4 Nov 2020 15:49:16 +0000 (08:49 -0700)]
Avoid crash in ada-lang.c:to_fixed_array_type
When debugging Ada programs compiled by certain versions of GNAT with
-fgnat-encodings=minimal, gdb can crash. These crashes occur when
running the gdb test suite, once some of the later patches in this
series have been applied.
This patch works around the bug by throwing an exception in the
failing case. I did not implement a full fix because GNAT has been
changed to emit better DWARF, and so in the near future this will stop
being a problem. (Currently, users don't generally use
-fgnat-encodings=minimal, and the GNAT default will only be changed in
a fully-patched compiler.)
gdb/ChangeLog
2020-11-04 Tom Tromey <tromey@adacore.com>
* ada-lang.c (to_fixed_array_type): Error if
decode_constrained_packed_array_type returns NULL.
Tom Tromey [Wed, 4 Nov 2020 15:21:36 +0000 (08:21 -0700)]
Rewrite leb.h:read_3_bytes
read_3_bytes assumes little-endian data, but in fact it depends on the
BFD. This patch rewrites this function to use bfd_get_24 instead.
2020-11-04 Tom Tromey <tromey@adacore.com>
* dwarf2/leb.h (read_3_bytes): Use bfd_get_24.
GDB Administrator [Wed, 4 Nov 2020 00:00:16 +0000 (00:00 +0000)]
Automatic date update in version.in
Tom de Vries [Tue, 3 Nov 2020 16:41:11 +0000 (17:41 +0100)]
[gdb/testsuite] Fix .debug_abbrev terminators
The abbreviations table for a single compilation unit has two types of
terminators:
- a ".byte 0" pair denoting the end of an attribute list
- a single ".byte 0" denoting the end of the table
However, at the end of the .debug_abbrev section in dw2-line-number-zero-dw.S,
we have four ".byte 0" entries:
...
.uleb128 0x12 /* DW_AT_high_pc */
.uleb128 0x01 /* DW_FORM_addr */
.byte 0x0 /* Terminator */
.byte 0x0 /* Terminator */
.byte 0x0 /* Terminator */
.byte 0x0 /* Terminator */
...
The first two are the attribute list terminator, the third is the end-of-table
terminator, and the last is superfluous/incorrect.
Fix this by emitting instead:
...
.uleb128 0x12 /* DW_AT_high_pc */
.uleb128 0x01 /* DW_FORM_addr */
.byte 0x0 /* DW_AT - Terminator */
.byte 0x0 /* DW_FORM - Terminator */
.byte 0x0 /* Abbrev end - Terminator */
...
where the last comment resembles the comment for other abbreviation codes:
...
.section .debug_abbrev
.Labbrev1_begin:
.uleb128 2 /* Abbrev start */
...
Tested on x86_64-linux.
gdb/testsuite/ChangeLog:
2020-11-03 Tom de Vries <tdevries@suse.de>
* lib/dwarf.exp (Dwarf::_handle_DW_TAG): Improve attribute list
terminator comments.
(Dwarf::cu, Dwarf::tu): Remove superfluous abbreviation table
terminator.
Howard Chu [Tue, 3 Nov 2020 15:12:47 +0000 (15:12 +0000)]
Add an option to the archiver to add a section recording library dependencies.
* ar.c (long_options): Add --record-libdeps.
(usage): Mention the new option.
(decode_options): Handle the new option.
(replace_members): If necessary, create a bfd to hold the libdeps
description.
* binemul.c (ar_emul_append_bfd): New function.
(ar_emul_replace_bfd): New function.
(ar_emul_default_append): Replace file_name and target arguments
with new_bfd argument.
(ar_emul_default_replace): Likewise.
* binemul.h: Update prototypes.
(struct bin_emulation_xfer_struct): Update fields.
* doc/binutils.texi: Document the new option.
* NEWS: Mention the new feature.
* emul_aix.c (ar_emul_aix_append): Update.
(ar_emul_aix_replace): Likewise.
* testsuite/binutils-all/ar.exp: Add test of new feature.
Przemyslaw Wirkus [Tue, 3 Nov 2020 14:21:32 +0000 (14:21 +0000)]
[PATCH][GAS] aarch64: Add atomic 64-byte load/store instructions for Armv8.7
Armv8.7 architecture introduces the "accelerator extension", aka
load/store of 64 bytes. New atomic load/store instructions are: LD64B,
ST64B, ST64BV and ST64BV0.
This patch adds:
+ New feature +ls64 to -march command line.
+ New atomic load/store instructions associated with above feature.
For more details regarding atomic 64-byte load/store instruction for
Armv8.7 please refer to Arm A64 Instruction set documentation for
Armv8-A architecture profile, see document page 157 for load
instruction, and pages 414-418 for store instructions of [0].
[0]: https://developer.arm.com/docs/ddi0596/i
Alan Modra [Tue, 3 Nov 2020 10:21:13 +0000 (20:51 +1030)]
PowerPC problem building gold with clang
* powerpc.cc (Target_powerpc::tocsave_loc): Return a pointer.
(Target_powerpc::Relocate::relocate): Avoid -Wdangling-gsl error.
Przemyslaw Wirkus [Tue, 3 Nov 2020 11:55:14 +0000 (11:55 +0000)]
[PATCH] aarch64: Update missing ChangeLog for AArch64 commits
Patch with missing ChangeLog entries for GAS AArch64 files.
Nick Clifton [Tue, 3 Nov 2020 08:56:27 +0000 (08:56 +0000)]
Fix compile time warning
Christian Eggers [Sun, 1 Nov 2020 08:10:14 +0000 (09:10 +0100)]
gas: fix symbol value calculation for versioned symbol aliases
Symbol value is in bytes while fragS::fr_address is in octets. Fixes GAS
symver12 and symver13 tests on ELF targets with with OCTETS_PER_BYTE>1.
* config/obj-elf (elf_frob_symbol): Fix symbol value calculation
for versioned symbol aliases.
Signed-off-by: Christian Eggers <ceggers@gmx.de>
Alan Modra [Mon, 2 Nov 2020 23:53:03 +0000 (10:23 +1030)]
asan: leak in bfd_section_from_shdr
* elf.c (bfd_section_from_shdr): Free sections_being_created.
Use bfd_zmalloc.
Nick Gasson [Mon, 2 Nov 2020 04:02:05 +0000 (12:02 +0800)]
gold: ensure file_counts_lock is initialized before using
Since upgrading to binutils 2.35 I've been experiencing random memory
corruption related crashes with ld.gold --threads. It's caused by
multiple threads concurrently pushing elements onto the shared
std::vector in File_read::record_file_read(). This vector is supposed to
be protected by file_counts_lock, but that is initialized lazily and
might be NULL when File_read::open() is called, in which case
Hold_optional_lock silently skips locking it.
Fix by calling the initialize() method before attempting to acquire the
lock, the same as other places that use file_counts_lock.
PR 26827
* fileread.cc (File_read::open): Ensure file_counts_lock is
initialized.
* testsuite/Makefile.am (check_PROGRAMS): Add a test that passes
-Wl,--threads.
* testsuite/Makefile.in: Regenerate.
GDB Administrator [Tue, 3 Nov 2020 00:00:12 +0000 (00:00 +0000)]
Automatic date update in version.in
Simon Marchi [Mon, 2 Nov 2020 21:35:47 +0000 (16:35 -0500)]
gdb/testsuite: fix failure in gdb.base/step-over-no-symbols.exp
This test fails on my machine:
p /x $pc^M
$2 = 0x55555555514e^M
(gdb) PASS: gdb.base/step-over-no-symbols.exp: displaced=off: get after PC
FAIL: gdb.base/step-over-no-symbols.exp: displaced=off: advanced
This is due to the check added in
5f0e2eb79e6b ("GDB/testsuite: Fix a
catastrophic step-over-no-symbols.exp failure"), that makes sure the PC
values are integer. As documented in the TCL doc [1], "string is
integer" returns 1 if the string is a valid 32-bit integer format. The
PC values are greater than 32 bits, so are not recognized as integers by
that test.
% string is integer -strict 0x55555555
1
% string is integer -strict 0x555555555
0
Replace the "string is integer" test with a regexp one, that verifies
the PC is a hex value.
[1] https://www.tcl.tk/man/tcl/TclCmd/string.htm#M21
gdb/testsuite/ChangeLog:
* gdb.base/step-over-no-symbols.exp (test_step_over): Replace
integer format test with regexp.
Change-Id: I71f8197e7b52e97b4901980544a8d1072aabd362
Tom Tromey [Thu, 29 Oct 2020 14:47:16 +0000 (08:47 -0600)]
Add x86_64 ravenscar support
Support for x86_64 ravenscar was recently added to the Ada runtime.
This patch updates gdb to follow.
As this is Ada-specific, and was reviewed internally by Joel, I am
checking it in.
2020-11-02 Tom Tromey <tromey@adacore.com>
* Makefile.in (ALL_64_TARGET_OBS): Add amd64-ravenscar-thread.o.
(ALLDEPFILES): Add amd64-ravenscar-thread.c.
(HFILES_NO_SRCDIR): Add amd64-ravenscar-thread.h.
* amd64-ravenscar-thread.c: New file.
* amd64-ravenscar-thread.h: New file.
* amd64-tdep.c (amd64_init_abi): Register ravenscar ops.
* configure.tgt (amd64_tobjs): Add ravenscar objects.
Andrew Burgess [Wed, 9 Sep 2020 10:26:22 +0000 (11:26 +0100)]
gdb: new function to wrap up executing command line scripts/commands
Small refactor to wrap up executing the scripts and commands passed
using the -x, -ex, -ix, -iex command line flags.
There should be no user visible changes after this commit.
gdb/ChangeLog:
* main.c (execute_cmdargs): New function.
(captured_main_1): Make use of execute_cmdargs.
Andrew Burgess [Fri, 25 Sep 2020 13:50:56 +0000 (14:50 +0100)]
gdb: use get_standard_config_dir when looking for .gdbinit
This commit effectively changes the default location of the .gdbinit
file, while maintaining backward compatibility.
For non Apple hosts the .gdbinit file will now be looked for in the
following locations:
$XDG_CONFIG_HOME/gdb/gdbinit
$HOME/.config/gdb/gdbinit
$HOME/.gdbinit
On Apple hosts the search order is instead:
$HOME/Library/Preferences/gdb/gdbinit
$HOME/.gdbinit
I've performed an extensive rewrite of the documentation, moving all
information about initialization files and where to find them into a
new @node, text from other areas has been moved into this one
location, and other areas cross-reference to this new @node as much as
possible.
gdb/ChangeLog:
* NEWS: Mention changes to config file search path.
* main.c
gdb/doc/ChangeLog:
* gdb.texinfo (Mode Options): Descriptions of initialization files
has been moved to 'Initialization Files'.
(Startup): Likewise.
(Initialization Files): New node.
(gdb man): Update to mention alternative file paths.
(gdbinit man): Likewise.
Tom Tromey [Sun, 5 Jul 2020 19:02:40 +0000 (13:02 -0600)]
Add get_standard_config_dir function
This adds a new get_standard_config_dir, which returns the name of the
configuration directory. In XDG, this is ~/.config/gdb/. Future
patches will make use of this.
2020-07-05 Tom Tromey <tom@tromey.com>
* pathstuff.h (get_standard_config_dir): Declare.
* pathstuff.cc (get_standard_config_dir): New function.
Tom Tromey [Mon, 2 Nov 2020 17:17:07 +0000 (10:17 -0700)]
Minor Python simplifications
I noticed that a few "#if"s could be removed from the Python code.
This patch is the result.
gdb/ChangeLog
2020-11-02 Tom Tromey <tromey@adacore.com>
* python/python.c: Consolidate two HAVE_PYTHON blocks.
(python_GdbModuleDef): Move earlier. Now static.
(do_start_initialization): Consolidate some IS_PY3K blocks.
Simon Marchi [Mon, 2 Nov 2020 15:26:14 +0000 (10:26 -0500)]
gdb, gdbserver, gdbsupport: fix leading space vs tabs issues
Many spots incorrectly use only spaces for indentation (for example,
there are a lot of spots in ada-lang.c). I've always found it awkward
when I needed to edit one of these spots: do I keep the original wrong
indentation, or do I fix it? What if the lines around it are also
wrong, do I fix them too? I probably don't want to fix them in the same
patch, to avoid adding noise to my patch.
So I propose to fix as much as possible once and for all (hopefully).
One typical counter argument for this is that it makes code archeology
more difficult, because git-blame will show this commit as the last
change for these lines. My counter counter argument is: when
git-blaming, you often need to do "blame the file at the parent commit"
anyway, to go past some other refactor that touched the line you are
interested in, but is not the change you are looking for. So you
already need a somewhat efficient way to do this.
Using some interactive tool, rather than plain git-blame, makes this
trivial. For example, I use "tig blame <file>", where going back past
the commit that changed the currently selected line is one keystroke.
It looks like Magit in Emacs does it too (though I've never used it).
Web viewers of Github and Gitlab do it too. My point is that it won't
really make archeology more difficult.
The other typical counter argument is that it will cause conflicts with
existing patches. That's true... but it's a one time cost, and those
are not conflicts that are difficult to resolve. I have also tried "git
rebase --ignore-whitespace", it seems to work well. Although that will
re-introduce the faulty indentation, so one needs to take care of fixing
the indentation in the patch after that (which is easy).
gdb/ChangeLog:
* aarch64-linux-tdep.c: Fix indentation.
* aarch64-ravenscar-thread.c: Fix indentation.
* aarch64-tdep.c: Fix indentation.
* aarch64-tdep.h: Fix indentation.
* ada-lang.c: Fix indentation.
* ada-lang.h: Fix indentation.
* ada-tasks.c: Fix indentation.
* ada-typeprint.c: Fix indentation.
* ada-valprint.c: Fix indentation.
* ada-varobj.c: Fix indentation.
* addrmap.c: Fix indentation.
* addrmap.h: Fix indentation.
* agent.c: Fix indentation.
* aix-thread.c: Fix indentation.
* alpha-bsd-nat.c: Fix indentation.
* alpha-linux-tdep.c: Fix indentation.
* alpha-mdebug-tdep.c: Fix indentation.
* alpha-nbsd-tdep.c: Fix indentation.
* alpha-obsd-tdep.c: Fix indentation.
* alpha-tdep.c: Fix indentation.
* amd64-bsd-nat.c: Fix indentation.
* amd64-darwin-tdep.c: Fix indentation.
* amd64-linux-nat.c: Fix indentation.
* amd64-linux-tdep.c: Fix indentation.
* amd64-nat.c: Fix indentation.
* amd64-obsd-tdep.c: Fix indentation.
* amd64-tdep.c: Fix indentation.
* amd64-windows-tdep.c: Fix indentation.
* annotate.c: Fix indentation.
* arc-tdep.c: Fix indentation.
* arch-utils.c: Fix indentation.
* arch/arm-get-next-pcs.c: Fix indentation.
* arch/arm.c: Fix indentation.
* arm-linux-nat.c: Fix indentation.
* arm-linux-tdep.c: Fix indentation.
* arm-nbsd-tdep.c: Fix indentation.
* arm-pikeos-tdep.c: Fix indentation.
* arm-tdep.c: Fix indentation.
* arm-tdep.h: Fix indentation.
* arm-wince-tdep.c: Fix indentation.
* auto-load.c: Fix indentation.
* auxv.c: Fix indentation.
* avr-tdep.c: Fix indentation.
* ax-gdb.c: Fix indentation.
* ax-general.c: Fix indentation.
* bfin-linux-tdep.c: Fix indentation.
* block.c: Fix indentation.
* block.h: Fix indentation.
* blockframe.c: Fix indentation.
* bpf-tdep.c: Fix indentation.
* break-catch-sig.c: Fix indentation.
* break-catch-syscall.c: Fix indentation.
* break-catch-throw.c: Fix indentation.
* breakpoint.c: Fix indentation.
* breakpoint.h: Fix indentation.
* bsd-uthread.c: Fix indentation.
* btrace.c: Fix indentation.
* build-id.c: Fix indentation.
* buildsym-legacy.h: Fix indentation.
* buildsym.c: Fix indentation.
* c-typeprint.c: Fix indentation.
* c-valprint.c: Fix indentation.
* c-varobj.c: Fix indentation.
* charset.c: Fix indentation.
* cli/cli-cmds.c: Fix indentation.
* cli/cli-decode.c: Fix indentation.
* cli/cli-decode.h: Fix indentation.
* cli/cli-script.c: Fix indentation.
* cli/cli-setshow.c: Fix indentation.
* coff-pe-read.c: Fix indentation.
* coffread.c: Fix indentation.
* compile/compile-cplus-types.c: Fix indentation.
* compile/compile-object-load.c: Fix indentation.
* compile/compile-object-run.c: Fix indentation.
* completer.c: Fix indentation.
* corefile.c: Fix indentation.
* corelow.c: Fix indentation.
* cp-abi.h: Fix indentation.
* cp-namespace.c: Fix indentation.
* cp-support.c: Fix indentation.
* cp-valprint.c: Fix indentation.
* cris-linux-tdep.c: Fix indentation.
* cris-tdep.c: Fix indentation.
* darwin-nat-info.c: Fix indentation.
* darwin-nat.c: Fix indentation.
* darwin-nat.h: Fix indentation.
* dbxread.c: Fix indentation.
* dcache.c: Fix indentation.
* disasm.c: Fix indentation.
* dtrace-probe.c: Fix indentation.
* dwarf2/abbrev.c: Fix indentation.
* dwarf2/attribute.c: Fix indentation.
* dwarf2/expr.c: Fix indentation.
* dwarf2/frame.c: Fix indentation.
* dwarf2/index-cache.c: Fix indentation.
* dwarf2/index-write.c: Fix indentation.
* dwarf2/line-header.c: Fix indentation.
* dwarf2/loc.c: Fix indentation.
* dwarf2/macro.c: Fix indentation.
* dwarf2/read.c: Fix indentation.
* dwarf2/read.h: Fix indentation.
* elfread.c: Fix indentation.
* eval.c: Fix indentation.
* event-top.c: Fix indentation.
* exec.c: Fix indentation.
* exec.h: Fix indentation.
* expprint.c: Fix indentation.
* f-lang.c: Fix indentation.
* f-typeprint.c: Fix indentation.
* f-valprint.c: Fix indentation.
* fbsd-nat.c: Fix indentation.
* fbsd-tdep.c: Fix indentation.
* findvar.c: Fix indentation.
* fork-child.c: Fix indentation.
* frame-unwind.c: Fix indentation.
* frame-unwind.h: Fix indentation.
* frame.c: Fix indentation.
* frv-linux-tdep.c: Fix indentation.
* frv-tdep.c: Fix indentation.
* frv-tdep.h: Fix indentation.
* ft32-tdep.c: Fix indentation.
* gcore.c: Fix indentation.
* gdb_bfd.c: Fix indentation.
* gdbarch.sh: Fix indentation.
* gdbarch.c: Re-generate
* gdbarch.h: Re-generate.
* gdbcore.h: Fix indentation.
* gdbthread.h: Fix indentation.
* gdbtypes.c: Fix indentation.
* gdbtypes.h: Fix indentation.
* glibc-tdep.c: Fix indentation.
* gnu-nat.c: Fix indentation.
* gnu-nat.h: Fix indentation.
* gnu-v2-abi.c: Fix indentation.
* gnu-v3-abi.c: Fix indentation.
* go32-nat.c: Fix indentation.
* guile/guile-internal.h: Fix indentation.
* guile/scm-cmd.c: Fix indentation.
* guile/scm-frame.c: Fix indentation.
* guile/scm-iterator.c: Fix indentation.
* guile/scm-math.c: Fix indentation.
* guile/scm-ports.c: Fix indentation.
* guile/scm-pretty-print.c: Fix indentation.
* guile/scm-value.c: Fix indentation.
* h8300-tdep.c: Fix indentation.
* hppa-linux-nat.c: Fix indentation.
* hppa-linux-tdep.c: Fix indentation.
* hppa-nbsd-nat.c: Fix indentation.
* hppa-nbsd-tdep.c: Fix indentation.
* hppa-obsd-nat.c: Fix indentation.
* hppa-tdep.c: Fix indentation.
* hppa-tdep.h: Fix indentation.
* i386-bsd-nat.c: Fix indentation.
* i386-darwin-nat.c: Fix indentation.
* i386-darwin-tdep.c: Fix indentation.
* i386-dicos-tdep.c: Fix indentation.
* i386-gnu-nat.c: Fix indentation.
* i386-linux-nat.c: Fix indentation.
* i386-linux-tdep.c: Fix indentation.
* i386-nto-tdep.c: Fix indentation.
* i386-obsd-tdep.c: Fix indentation.
* i386-sol2-nat.c: Fix indentation.
* i386-tdep.c: Fix indentation.
* i386-tdep.h: Fix indentation.
* i386-windows-tdep.c: Fix indentation.
* i387-tdep.c: Fix indentation.
* i387-tdep.h: Fix indentation.
* ia64-libunwind-tdep.c: Fix indentation.
* ia64-libunwind-tdep.h: Fix indentation.
* ia64-linux-nat.c: Fix indentation.
* ia64-linux-tdep.c: Fix indentation.
* ia64-tdep.c: Fix indentation.
* ia64-tdep.h: Fix indentation.
* ia64-vms-tdep.c: Fix indentation.
* infcall.c: Fix indentation.
* infcmd.c: Fix indentation.
* inferior.c: Fix indentation.
* infrun.c: Fix indentation.
* iq2000-tdep.c: Fix indentation.
* language.c: Fix indentation.
* linespec.c: Fix indentation.
* linux-fork.c: Fix indentation.
* linux-nat.c: Fix indentation.
* linux-tdep.c: Fix indentation.
* linux-thread-db.c: Fix indentation.
* lm32-tdep.c: Fix indentation.
* m2-lang.c: Fix indentation.
* m2-typeprint.c: Fix indentation.
* m2-valprint.c: Fix indentation.
* m32c-tdep.c: Fix indentation.
* m32r-linux-tdep.c: Fix indentation.
* m32r-tdep.c: Fix indentation.
* m68hc11-tdep.c: Fix indentation.
* m68k-bsd-nat.c: Fix indentation.
* m68k-linux-nat.c: Fix indentation.
* m68k-linux-tdep.c: Fix indentation.
* m68k-tdep.c: Fix indentation.
* machoread.c: Fix indentation.
* macrocmd.c: Fix indentation.
* macroexp.c: Fix indentation.
* macroscope.c: Fix indentation.
* macrotab.c: Fix indentation.
* macrotab.h: Fix indentation.
* main.c: Fix indentation.
* mdebugread.c: Fix indentation.
* mep-tdep.c: Fix indentation.
* mi/mi-cmd-catch.c: Fix indentation.
* mi/mi-cmd-disas.c: Fix indentation.
* mi/mi-cmd-env.c: Fix indentation.
* mi/mi-cmd-stack.c: Fix indentation.
* mi/mi-cmd-var.c: Fix indentation.
* mi/mi-cmds.c: Fix indentation.
* mi/mi-main.c: Fix indentation.
* mi/mi-parse.c: Fix indentation.
* microblaze-tdep.c: Fix indentation.
* minidebug.c: Fix indentation.
* minsyms.c: Fix indentation.
* mips-linux-nat.c: Fix indentation.
* mips-linux-tdep.c: Fix indentation.
* mips-nbsd-tdep.c: Fix indentation.
* mips-tdep.c: Fix indentation.
* mn10300-linux-tdep.c: Fix indentation.
* mn10300-tdep.c: Fix indentation.
* moxie-tdep.c: Fix indentation.
* msp430-tdep.c: Fix indentation.
* namespace.h: Fix indentation.
* nat/fork-inferior.c: Fix indentation.
* nat/gdb_ptrace.h: Fix indentation.
* nat/linux-namespaces.c: Fix indentation.
* nat/linux-osdata.c: Fix indentation.
* nat/netbsd-nat.c: Fix indentation.
* nat/x86-dregs.c: Fix indentation.
* nbsd-nat.c: Fix indentation.
* nbsd-tdep.c: Fix indentation.
* nios2-linux-tdep.c: Fix indentation.
* nios2-tdep.c: Fix indentation.
* nto-procfs.c: Fix indentation.
* nto-tdep.c: Fix indentation.
* objfiles.c: Fix indentation.
* objfiles.h: Fix indentation.
* opencl-lang.c: Fix indentation.
* or1k-tdep.c: Fix indentation.
* osabi.c: Fix indentation.
* osabi.h: Fix indentation.
* osdata.c: Fix indentation.
* p-lang.c: Fix indentation.
* p-typeprint.c: Fix indentation.
* p-valprint.c: Fix indentation.
* parse.c: Fix indentation.
* ppc-linux-nat.c: Fix indentation.
* ppc-linux-tdep.c: Fix indentation.
* ppc-nbsd-nat.c: Fix indentation.
* ppc-nbsd-tdep.c: Fix indentation.
* ppc-obsd-nat.c: Fix indentation.
* ppc-ravenscar-thread.c: Fix indentation.
* ppc-sysv-tdep.c: Fix indentation.
* ppc64-tdep.c: Fix indentation.
* printcmd.c: Fix indentation.
* proc-api.c: Fix indentation.
* producer.c: Fix indentation.
* producer.h: Fix indentation.
* prologue-value.c: Fix indentation.
* prologue-value.h: Fix indentation.
* psymtab.c: Fix indentation.
* python/py-arch.c: Fix indentation.
* python/py-bpevent.c: Fix indentation.
* python/py-event.c: Fix indentation.
* python/py-event.h: Fix indentation.
* python/py-finishbreakpoint.c: Fix indentation.
* python/py-frame.c: Fix indentation.
* python/py-framefilter.c: Fix indentation.
* python/py-inferior.c: Fix indentation.
* python/py-infthread.c: Fix indentation.
* python/py-objfile.c: Fix indentation.
* python/py-prettyprint.c: Fix indentation.
* python/py-registers.c: Fix indentation.
* python/py-signalevent.c: Fix indentation.
* python/py-stopevent.c: Fix indentation.
* python/py-stopevent.h: Fix indentation.
* python/py-threadevent.c: Fix indentation.
* python/py-tui.c: Fix indentation.
* python/py-unwind.c: Fix indentation.
* python/py-value.c: Fix indentation.
* python/py-xmethods.c: Fix indentation.
* python/python-internal.h: Fix indentation.
* python/python.c: Fix indentation.
* ravenscar-thread.c: Fix indentation.
* record-btrace.c: Fix indentation.
* record-full.c: Fix indentation.
* record.c: Fix indentation.
* reggroups.c: Fix indentation.
* regset.h: Fix indentation.
* remote-fileio.c: Fix indentation.
* remote.c: Fix indentation.
* reverse.c: Fix indentation.
* riscv-linux-tdep.c: Fix indentation.
* riscv-ravenscar-thread.c: Fix indentation.
* riscv-tdep.c: Fix indentation.
* rl78-tdep.c: Fix indentation.
* rs6000-aix-tdep.c: Fix indentation.
* rs6000-lynx178-tdep.c: Fix indentation.
* rs6000-nat.c: Fix indentation.
* rs6000-tdep.c: Fix indentation.
* rust-lang.c: Fix indentation.
* rx-tdep.c: Fix indentation.
* s12z-tdep.c: Fix indentation.
* s390-linux-tdep.c: Fix indentation.
* score-tdep.c: Fix indentation.
* ser-base.c: Fix indentation.
* ser-mingw.c: Fix indentation.
* ser-uds.c: Fix indentation.
* ser-unix.c: Fix indentation.
* serial.c: Fix indentation.
* sh-linux-tdep.c: Fix indentation.
* sh-nbsd-tdep.c: Fix indentation.
* sh-tdep.c: Fix indentation.
* skip.c: Fix indentation.
* sol-thread.c: Fix indentation.
* solib-aix.c: Fix indentation.
* solib-darwin.c: Fix indentation.
* solib-frv.c: Fix indentation.
* solib-svr4.c: Fix indentation.
* solib.c: Fix indentation.
* source.c: Fix indentation.
* sparc-linux-tdep.c: Fix indentation.
* sparc-nbsd-tdep.c: Fix indentation.
* sparc-obsd-tdep.c: Fix indentation.
* sparc-ravenscar-thread.c: Fix indentation.
* sparc-tdep.c: Fix indentation.
* sparc64-linux-tdep.c: Fix indentation.
* sparc64-nbsd-tdep.c: Fix indentation.
* sparc64-obsd-tdep.c: Fix indentation.
* sparc64-tdep.c: Fix indentation.
* stabsread.c: Fix indentation.
* stack.c: Fix indentation.
* stap-probe.c: Fix indentation.
* stubs/ia64vms-stub.c: Fix indentation.
* stubs/m32r-stub.c: Fix indentation.
* stubs/m68k-stub.c: Fix indentation.
* stubs/sh-stub.c: Fix indentation.
* stubs/sparc-stub.c: Fix indentation.
* symfile-mem.c: Fix indentation.
* symfile.c: Fix indentation.
* symfile.h: Fix indentation.
* symmisc.c: Fix indentation.
* symtab.c: Fix indentation.
* symtab.h: Fix indentation.
* target-float.c: Fix indentation.
* target.c: Fix indentation.
* target.h: Fix indentation.
* tic6x-tdep.c: Fix indentation.
* tilegx-linux-tdep.c: Fix indentation.
* tilegx-tdep.c: Fix indentation.
* top.c: Fix indentation.
* tracefile-tfile.c: Fix indentation.
* tracepoint.c: Fix indentation.
* tui/tui-disasm.c: Fix indentation.
* tui/tui-io.c: Fix indentation.
* tui/tui-regs.c: Fix indentation.
* tui/tui-stack.c: Fix indentation.
* tui/tui-win.c: Fix indentation.
* tui/tui-winsource.c: Fix indentation.
* tui/tui.c: Fix indentation.
* typeprint.c: Fix indentation.
* ui-out.h: Fix indentation.
* unittests/copy_bitwise-selftests.c: Fix indentation.
* unittests/memory-map-selftests.c: Fix indentation.
* utils.c: Fix indentation.
* v850-tdep.c: Fix indentation.
* valarith.c: Fix indentation.
* valops.c: Fix indentation.
* valprint.c: Fix indentation.
* valprint.h: Fix indentation.
* value.c: Fix indentation.
* value.h: Fix indentation.
* varobj.c: Fix indentation.
* vax-tdep.c: Fix indentation.
* windows-nat.c: Fix indentation.
* windows-tdep.c: Fix indentation.
* xcoffread.c: Fix indentation.
* xml-syscall.c: Fix indentation.
* xml-tdesc.c: Fix indentation.
* xstormy16-tdep.c: Fix indentation.
* xtensa-config.c: Fix indentation.
* xtensa-linux-nat.c: Fix indentation.
* xtensa-linux-tdep.c: Fix indentation.
* xtensa-tdep.c: Fix indentation.
gdbserver/ChangeLog:
* ax.cc: Fix indentation.
* dll.cc: Fix indentation.
* inferiors.h: Fix indentation.
* linux-low.cc: Fix indentation.
* linux-nios2-low.cc: Fix indentation.
* linux-ppc-ipa.cc: Fix indentation.
* linux-ppc-low.cc: Fix indentation.
* linux-x86-low.cc: Fix indentation.
* linux-xtensa-low.cc: Fix indentation.
* regcache.cc: Fix indentation.
* server.cc: Fix indentation.
* tracepoint.cc: Fix indentation.
gdbsupport/ChangeLog:
* common-exceptions.h: Fix indentation.
* event-loop.cc: Fix indentation.
* fileio.cc: Fix indentation.
* filestuff.cc: Fix indentation.
* gdb-dlfcn.cc: Fix indentation.
* gdb_string_view.h: Fix indentation.
* job-control.cc: Fix indentation.
* signals.cc: Fix indentation.
Change-Id: I4bad7ae6be0fbe14168b8ebafb98ffe14964a695
Gary Benson [Mon, 2 Nov 2020 14:19:29 +0000 (14:19 +0000)]
Fix gdb.base/print-file-var.exp with Clang
The C++ parts of gdb.base/print-file-var.exp failed to build with
Clang because the "-x c++" option added by gdb_compile caused the
compiler to attempt to parse .so files as C++. This commit splits
the compiler and linker options into separate lists, and switches
to building via build_executable_from_specs which can accommodate
this separation.
gdb/testsuite/ChangeLog:
* gdb.base/print-file-var.exp (test): Separate compiler and
linker options, and build using build_executable_from_specs
to accommodate this.
Gary Benson [Mon, 2 Nov 2020 14:19:29 +0000 (14:19 +0000)]
Detect and report incompatible gdb_compile options
In commits
221db974e653659edb280787af1b3efdd1615083 and
68d654afdfcff840ebb3ae432ed72dca0521d670, these patches:
2020-06-24 Pedro Alves <palves@redhat.com>
* lib/gdb.exp (gdb_compile): Pass "-x c++" explicitly when
compiling C++ programs.
2020-09-25 Gary Benson <gbenson@redhat.com>
* lib/gdb.exp (gdb_compile): Pass "-x c++" earlier, and only
for .c files.
attempted to fix problems with testcases that compile .c files
using the C++ compiler. These patches cause gdb_compile to add
"-x c++" to the compiler options when using Clang. This fix does
not work for gdb.base/print-file-var.exp, however, which attempts
to compile a .c input file to an executable linked with shared
libraries: the resulting command caused the compiler to attempt
to parse the .so files as C++. This commit causes gdb_compile
to reject this combination of options.
gdb/testsuite/ChangeLog:
* lib/gdb.exp (gdb_compile): Inhibit passing "-x c++"
for .c files compiled as C++ with Clang if any shared
libraries are specified.
Gary Benson [Mon, 2 Nov 2020 11:52:41 +0000 (11:52 +0000)]
Fix testcases using __attribute__((noclone)) with Clang
Clang fails to compile a number of files with the following warning:
unknown attribute 'noclone' ignored [-Wunknown-attributes]. This
commit adds a new header, lib/noclone.h, which defines the macro
ATTRIBUTE_NOCLONE accordingly, and updates the relevant testcases
to use it.
gdb/testsuite/ChangeLog:
* lib/attributes.h: New header.
* gdb.base/backtrace.c: Include the above. Replace
__attribute__(noclone)) with ATTRIBUTE_NOCLONE.
* gdb.base/infcall-nested-structs.c: Likewise.
* gdb.base/vla-optimized-out.c: Likewise.
Tom de Vries [Mon, 2 Nov 2020 10:25:38 +0000 (11:25 +0100)]
[gdb/testsuite] Remove .debug_line.dwo from gdb.dwarf2/fission-multi-cu.S
Consider test-case gdb.dwarf2/fission-multi-cu.exp. It produces an executable
fission-multi-cu and a dwo file fission-multi-cu.dwo.
The file fission-multi-cu.dwo contains a .debug_line.dwo section, which
according to the DWARF v5 standard is a "specialized line number table" for
type units in the .debug_info.dwo section, and contains only the directory and
filename lists.
When reading the actual .debug_line.dwo section using readelf -w, we get:
...
The Directory Table is empty.
The File Name Table is empty.
No Line Number Statements.
...
So, the section does not contain any actual information. Furthermore, no
information is required because the .debug_line.dwo section does not contain
any type units.
This is confirmed by:
- re-doing the commands listed at the start of fission-multi-cu.S, which were
used as starting point for fission-multi-cu.S, and
- compiling the fission-multi-cu{1,2}.c files with clang -flto -g -gsplit-dwarf
In both cases, no .debug_line.dwo section is generated.
Remove the .debug_line.dwo section, to make it fit how split dwarf is actually
generated by clang.
Tested on x86_64-linux.
gdb/testsuite/ChangeLog:
2020-11-02 Tom de Vries <tdevries@suse.de>
* gdb.dwarf2/fission-multi-cu.S: Remove .debug_line.dwo section.
Andrew Burgess [Tue, 27 Oct 2020 15:31:53 +0000 (15:31 +0000)]
gdb/riscv: read frame base register as unsigned in the unwinder
I noticed an issue with the RISC-V prologue scanning stack unwinder.
We currently read the frame base register (either $sp or $fp) as a
signed value. This means that the frame_id's stack_addr field will be
a signed value.
In other contexts though these registers are data pointers, and so are
unsigned.
There's not many places where this mismatch actually shows though, but
I did find one place. Consider this GDB session:
(gdb) maintenance set dwarf unwinders off
(gdb) set backtrace past-main on
...
(gdb) b main
Breakpoint 1 at 0x20400344: file main.c, line 86.
(gdb) run
...
(gdb) bt
#0 main () at main.c:86
#1 0x2040005c in _start () at start.S:59
Backtrace stopped: frame did not save the PC
(gdb) info frame 1
Stack frame at 0x80000a1c:
pc = 0x2040005c in _start (start.S:59); saved pc = <not saved>
Outermost frame: frame did not save the PC
caller of frame at 0x80000a1c
source language asm.
Arglist at 0x80000a1c, args:
Locals at 0x80000a1c, Previous frame's sp is 0x80000a1c
(gdb) frame address 0x80000a1c
No frame at address 0x80000a1c.
(gdb) frame address 0xffffffff80000a1c
#1 0x2040005c in _start () at start.S:59
59 call main
Notice that the 'info frame 1' reports that the frame is at
'0x80000a1c', this is the unsigned frame base value, but when I try
to select a frame using this address I can't.
The reason is that the frame_id for frame #1 actually has the
unsigned (and hence sign-extended) stack_addr value. When I use the
sign extended address I can correctly select the frame.
I propose changing the prologue scanning unwinder to read the frame
base as unsigned. After this in the above case I can now do this:
(gdb) frame address 0x80000a1c
#1 0x2040005c in _start () at start.S:59
59 call main
(gdb) frame address 0xffffffff80000a1c
No frame at address 0xffffffff80000a1c.
Which I think makes more sense.
This issue causes failures in gdb.base/frame-selection.exp if you
compile for RV32 with a linker script that places the stack in the
correct location, which are resolved by this patch.
gdb/ChangeLog:
* riscv-tdep.c (riscv_frame_cache): Read the frame base register
as an unsigned value.
Simon Marchi [Mon, 2 Nov 2020 00:39:11 +0000 (19:39 -0500)]
sim/bpf: re-generate configure
I noticed a little diff when re-generating the configure file in this
directory.
sim/ChangeLog:
* bpf/configure: Re-generate.
Change-Id: Ieb26be2cc1be8108d4b08387255f45b57f288171
GDB Administrator [Mon, 2 Nov 2020 00:00:14 +0000 (00:00 +0000)]
Automatic date update in version.in
Alan Modra [Fri, 30 Oct 2020 04:26:35 +0000 (14:56 +1030)]
PR26806, Suspected linker bug with LTO
This patch reverts most of git commit
1e3b96fd6cf, so IR symbols are
again not marked def_regular or ref_regular. That should be enough to
stop IR symbols from becoming dynamic. To mark as-needed shared
libraries referenced by IR symbols, use the referencing BFD rather
than the ref flags.
bfd/
PR 15146
PR 26314
PR 26530
PR 26806
* elflink.c (elf_link_add_object_symbols): Don't set def/ref flags
for plugin syms. Do allow plugin syms to mark as-needed libs.
ld/
PR 26806
* testsuite/ld-plugin/lto-19.h,
* testsuite/ld-plugin/lto-19a.c,
* testsuite/ld-plugin/lto-19b.c,
* testsuite/ld-plugin/lto-19c.c: New test.
* testsuite/ld-plugin/pr26806.c,
* testsuite/ld-plugin/pr26806.d: New test.
* testsuite/ld-plugin/lto.exp: Run them.
Tom Tromey [Sun, 1 Nov 2020 16:51:13 +0000 (09:51 -0700)]
Change end_psymtab_common to a method
This changes end_psymtab_common to be a method on partial_symtab.
This seems a little cleaner to me.
gdb/ChangeLog
2020-11-01 Tom Tromey <tom@tromey.com>
* dbxread.c (dbx_end_psymtab): Update.
* dwarf2/read.c (process_psymtab_comp_unit_reader)
(build_type_psymtabs_reader): Update.
* xcoffread.c (xcoff_end_psymtab): Update.
* ctfread.c (scan_partial_symbols): Update.
* psymtab.c (sort_pst_symbols): Remove.
(partial_symtab::end): Rename from end_psymtab_common. Inline
sort_pst_symbols.
* psympriv.h (struct partial_symtab) <end>: New method.
(end_psymtab_common): Don't declare.
Tom Tromey [Sun, 1 Nov 2020 16:51:13 +0000 (09:51 -0700)]
Remove partial symbol statistics
The "n_psyms" statistic in the per-objfile stats is not really needed,
but its use requires passing the objfile to add_psymbol. This patch
removes the field in favor of counting the psyms when needed.
Note that this is not exactly equivalent -- in the old approach, a
psymbol can in theory be created and then the psymtab discarded, which
would increment the counter. This does not seem very important to me.
I rewrote the code to count partial symbols; though TBH I think that
this information is not really very useful.
gdb/ChangeLog
2020-11-01 Tom Tromey <tom@tromey.com>
* symmisc.c (count_psyms): New function.
(print_objfile_statistics): Use it.
* psymtab.c (append_psymbol_to_list): Remove.
(partial_symtab::add_psymbol): Inline append_psymbol_to_list.
* objfiles.h (struct objstats) <n_psyms>: Remove.
Tom Tromey [Sun, 1 Nov 2020 16:51:13 +0000 (09:51 -0700)]
Remove parameter from end_psymtab_common
The objfile parameter to end_psymtab_common is no longer needed, so
this removes it.
gdb/ChangeLog
2020-11-01 Tom Tromey <tom@tromey.com>
* dbxread.c (dbx_end_psymtab): Update.
* dwarf2/read.c (process_psymtab_comp_unit_reader): Update.
(build_type_psymtabs_reader): Update.
* xcoffread.c (xcoff_end_psymtab): Update.
* ctfread.c (scan_partial_symbols): Update.
* psympriv.h (end_psymtab_common): Update.
* psymtab.c (end_psymtab_common): Remove objfile parameter.
(sort_pst_symbols): Likewise.
Tom Tromey [Sun, 1 Nov 2020 16:51:13 +0000 (09:51 -0700)]
Remove init_psymbol_list
init_psymbol_list is now empty, and so this removes it.
gdb/ChangeLog
2020-11-01 Tom Tromey <tom@tromey.com>
* dbxread.c (dbx_symfile_read): Update.
* dwarf2/read.c (dwarf2_build_psymtabs): Update.
* xcoffread.c (xcoff_initial_scan): Update.
* psympriv.h (init_psymbol_list): Don't declare.
* psymtab.c (init_psymbol_list): Remove.
Joel Brobecker [Sun, 1 Nov 2020 11:37:41 +0000 (15:37 +0400)]
avoid unwarranted assumption in gdb.ada/fixed_points/fixed_points.adb
The test program being used declares a fixed-point type
(Base_Fixed_Point_Type) Base_Fixed_Point_Type whose (scaled) range
is System.Min_Int .. System.Max_Int. is an unwarranted assumption because
the range is implementation-defined. It means the compiler is therefore
free to reject that declaration.
We noticed this while one of my coworkers was working on enhancing
GNAT to support 128bit integers. The bulk of the work has been done,
but one side-effect is that there is a small gap in this particular
area where the compiler is now rejecting this code. We will eventually
plug that gap, but in meantime, since the testcase itself doesn't really
need such a large range, this commit simply adjusts the test program
to use hard-coded bounds for the range whose value are more reasonable.
gdb/testsuite/ChangeLog:
* gdb.ada/fixed_points/fixed_points.adb: Replace use of
System.Min_Int and System.Max_Int with smaller hardcoded
constants.
Joel Brobecker [Sun, 1 Nov 2020 07:41:06 +0000 (02:41 -0500)]
ada-lang.c: Rename gnat_encoded_fixed_type_info
This commit renames gnat_encoded_fixed_type_info into
gnat_encoded_fixed_point_type_info, so as to be more consistent
with the naming used for the other associated routines (i.e.
use "fixed_point" rather than just "fixed").
gdb/ChangeLog:
* ada-lang.c (gnat_encoded_fixed_point_type_info): Renames
gnat_encoded_fixed_type_info. Update all callers.
Joel Brobecker [Sun, 1 Nov 2020 07:38:45 +0000 (02:38 -0500)]
ada-lang.c: fix line too long in cast_from_gnat_encoded_fixed_point_type
One of the lines got too long after a renaming done in a previous
commit. This fixes that.
gdb/ChangeLog:
* ada-lang.c (cast_from_gnat_encoded_fixed_point_type): Split
line too long.
Joel Brobecker [Sun, 1 Nov 2020 07:29:27 +0000 (02:29 -0500)]
ada-lang.c: Renaming some fixed-point-related routines
This patch renames some of the fixed-point-related subprograms in ada-lang.c
so as to make it obvious that those routines only handle the case where
the types are encoded using the GNAT encoding.
No function change; this patch is preparation work for adding support
for fixed-point types purely based on standard DWARF debug info.
gdb/ChangeLog:
* ada-lang.c (cast_from_gnat_encoded_fixed_point_type): Renames
cast_from_fixed. Update all callers.
(cast_to_gnat_encoded_fixed_point_type): Renames cast_to_fixed.
Update all callers.
(gnat_encoded_fixed_point_scaling_factor): Renames ada_scaling_factor.
Update all callers.
* ada-lang.h (gnat_encoded_fixed_point_scaling_factor): Renames
ada_scaling_factor.
* ada-typeprint.c: Replace call to ada_scaling_factor by call
to print_gnat_encoded_fixed_point_type.
* ada-valprint.c: Likewise.
GDB Administrator [Sun, 1 Nov 2020 00:00:12 +0000 (00:00 +0000)]
Automatic date update in version.in
Andrew Burgess [Sat, 31 Oct 2020 21:50:44 +0000 (21:50 +0000)]
gdb: restore some checks of debug flags
This partially reverts some parts of the commit:
commit
17417fb0ec9842de1774e1e76f1f11c00cdafc47
Date: Sat Oct 31 09:01:25 2020 -0400
gdb, gdbsupport: add debug_prefixed_printf, remove boilerplate functions
This commit removed 3 places where some debug flags were being
checked. The result was that debug tracing was being printed
unconditionally.
This commit adds back the 3 flag checks.
gdb/ChangeLog:
* infrun.h (infrun_debug_printf): Add check of debug_infrun flag.
(debug_prefixed_printf): Add check of debug_displaced flag.
* linux-nat.c (linux_nat_debug_printf): Add check of
debug_linux_nat flag.
Simon Marchi [Sat, 31 Oct 2020 13:01:25 +0000 (09:01 -0400)]
gdb, gdbsupport: add debug_prefixed_printf, remove boilerplate functions
The *_debug_print_1 functions are all very similar, the only difference
being the subsystem name. Remove them all and make the logging macros
use a new debug_prefixed_printf function directly.
gdb/ChangeLog:
* infrun.c (infrun_debug_printf_1): Remove.
(displaced_debug_printf_1): Remove.
(stop_all_threads): Use debug_prefixed_printf.
* infrun.h (infrun_debug_printf_1): Remove.
(infrun_debug_printf): Use debug_prefixed_printf.
(displaced_debug_printf_1): Remove.
(displaced_debug_printf): Use debug_prefixed_printf.
* linux-nat.c (linux_nat_debug_printf_1): Remove.
(linux_nat_debug_printf): Use debug_prefixed_printf.
gdbsupport/ChangeLog:
* common-debug.cc (debug_prefixed_printf): New.
* common-debug.h (debug_prefixed_printf): New declaration.
* event-loop.cc (event_loop_debug_printf_1): Remove.
* event-loop.h (event_loop_debug_printf_1): Remove.
(event_loop_debug_printf): Use debug_prefixed_printf.
(event_loop_ui_debug_printf): Use debug_prefixed_printf.
Change-Id: Ib323087c7257f0060121d302055c41eb64aa60c6
Simon Marchi [Sat, 31 Oct 2020 12:31:00 +0000 (08:31 -0400)]
gdbserver: replace AC_TRY_COMPILE in acinclude.m4
... with AC_COMPILE_IFELSE and AC_LANG_PROGRAM.
All changes in the generated configure file are insignificant
whitespace changes.
gdbserver/ChangeLog:
* acinclude.m4: Replace AC_TRY_COMPILE with AC_COMPILE_IFELSE +
AC_LANG_PROGRAM.
* configure: Re-generate.
Change-Id: Idab8b5e1a984046b5283940c02e5a22da2291d58
Simon Marchi [Sat, 31 Oct 2020 12:31:00 +0000 (08:31 -0400)]
gdb: replace AC_TRY_LINK in sanitize.m4
... with AC_LINK_IFELSE + AC_LANG_PROGRAM.
All changes in the generated configure file are insignificant whitespace
changes.
gdb/ChangeLog:
* configure: Re-generate.
* sanitize.m4: Replace AC_TRY_LINK with AC_LINK_IFELSE +
AC_LANG_PROGRAM.
Change-Id: I6fc4c39e10b28d2ade964e0d59a7f8ec0d3a272a
Simon Marchi [Sat, 31 Oct 2020 12:31:00 +0000 (08:31 -0400)]
gdbsupport: replace AC_TRY_COMPILE in common.m4
... with AC_COMPILE_IFELSE + AC_LANG_PROGRAM. All the changes in the
generated configure files are insignificant whitespace changes.
gdb/ChangeLog:
* configure: Re-generate.
gdbserver/ChangeLog:
* configure: Re-generate.
gdbsupport/ChangeLog:
* common.m4: Replace AC_TRY_COMPILE with AC_COMPILE_IFELSE +
AC_LANG_PROGRAM.
* configure: Re-generate.
Change-Id: Id58e6e887f6be817d52b189921845838031dbd2a
Simon Marchi [Sat, 31 Oct 2020 12:31:00 +0000 (08:31 -0400)]
gdbsupport: use AC_FUNC_FORK instead of AC_FUNC_VFORK
autoupdate does this change, it fixes this warning:
configure.ac:50: warning: The macro `AC_FUNC_VFORK' is obsolete.
configure.ac:50: You should run autoupdate.
../../lib/autoconf/functions.m4:1944: AC_FUNC_VFORK is expanded from...
common.m4:20: GDB_AC_COMMON is expanded from...
configure.ac:50: the top level
There are not changes in the generated configure files.
gdbsupport/ChangeLog:
* common.m4: Replace AC_FUNC_VFORK with AC_FUNC_FORK.
Change-Id: I9de9f718c57e6d51c9734161f36c36ce39170325
Simon Marchi [Sat, 31 Oct 2020 12:30:59 +0000 (08:30 -0400)]
gdbsupport: replace AC_TRY_COMPILE in warning.m4
Replace AC_TRY_COMPILE with AC_COMPILE_IFELSE + AC_LANG_PROGRAM.
All changes in generated configure files are insignificant whitespace
changes.
gdb/ChangeLog:
* configure: Re-generate.
gdbserver/ChangeLog:
* configure: Re-generate.
gdbsupport/ChangeLog:
* configure: Re-generate.
* warning.m4: Replace AC_TRY_COMPILE with AC_COMPILE_IFELSE +
AC_LANG_PROGRAM.
Change-Id: I517bd20ec3af960ad999a586761df0ac8959a3fc
Simon Marchi [Sat, 31 Oct 2020 12:30:59 +0000 (08:30 -0400)]
gdbsupport: replace AC_TRY_COMPILE in ptrace.m4
Replace AC_TRY_COMPILE with AC_COMPILE_IFELSE + AC_LANG_PROGRAM.
All the changes in the generated configure files are insignificant
whitespace changes.
gdb/ChangeLog:
* configure: Re-generate.
gdbserver/ChangeLog:
* configure: Re-generate.
gdbsupport/ChangeLog:
* configure: Re-generate.
* ptrace.m4: Replace AC_TRY_COMPILE with AC_COMPILE_IFELSE +
AC_LANG_PROGRAM.
Change-Id: Ia782b5477fe49dad04e68c0f41c6d8ab3fde5bf0
Simon Marchi [Sat, 31 Oct 2020 12:30:59 +0000 (08:30 -0400)]
gdbsupport: re-indent ptrace.m4
For some reason, autoupdate isn't able to grok ptrace.m4:
$ autoupdate ptrace.m4
/usr/bin/m4:/tmp/auYjuodw/input.m4:171: ERROR: end of file in string
autoupdate: /usr/bin/m4 failed with exit status: 1
Honestly, I'm unable to grok it either. This patch re-indents it in a
way that I think is easier to read. With this patch applied, autoupdate
becomes able to parse ptrace.m4, but I chose to keep this re-indent in a
patch of its own.
All the changes in generated configure files consist of insignificant
whitespace changes.
gdb/ChangeLog:
* configure: Re-generate.
gdbserver/ChangeLog:
* configure: Re-generate.
gdbsupport/ChangeLog:
* configure: Re-generate.
* ptrace.m4: Re-indent.
Change-Id: Ie2afab09fecc8b6d0cccccb47ac9756f3843881e
Simon Marchi [Sat, 31 Oct 2020 12:30:58 +0000 (08:30 -0400)]
gdb: modernize acinclude.m4
Run autoupdate, fix indentation for readability.
gdb/ChangeLog:
* acinclude.m4: Modernize.
* configure: Re-generate.
Change-Id: I8949f885326a3206f414776b63a1fdba197bb19a
Simon Marchi [Sat, 31 Oct 2020 12:30:58 +0000 (08:30 -0400)]
gdb/testsuite: modernize configure.ac
Run autoupdate, the only change is to split AC_INIT into AC_INIT and
AC_CONFIG_SRCDIR.
gdb/testsuite/ChangeLog:
* configure.ac: Split AC_INIT into AC_INIT and AC_CONFIG_SRCDIR.
* configure: Re-generate.
Change-Id: I6e40c0261bda4fe9144b896799ef460d23e22e09
Simon Marchi [Sat, 31 Oct 2020 12:30:58 +0000 (08:30 -0400)]
gdb: modernize configure.ac
Run autoupdate on configure.ac and adjust the indentation of the result
for better readability. This removes a bunch of warnings when running
`autoreconf -vf -Wall`. The changes are:
* Replace AC_INIT with AC_INIT and no arguments plus
AC_CONFIG_SRCDIR.
* Replace AC_ERROR with AC_MSG_ERROR.
* Replace AC_TRY_LINK with AC_LINK_IFELSE.
* Replace AC_TRY_COMPILE with AC_COMPILE_IFELSE.
* Replace AC_HELP_STRING with AS_HELP_STRING.
autoupdate erroneously tries to replace AC_C_LONG_DOUBLE in a comment,
which I reverted manually.
All the changes in the generated configure file are insignificant
whitespaces changes.
gdb/ChangeLog:
* configure.ac: Modernize.
* configure: Re-generate.
Change-Id: Ie3a1409c8032a36a6383da964286a46ece9b546e
Simon Marchi [Sat, 31 Oct 2020 12:30:58 +0000 (08:30 -0400)]
gdbserver: modernize configure.ac
Run autoupdate on gdbserver/configure.ac and then tweak it to use easier
to read indentation. This removes a few warnings when running
`autoreconf -vf -Wall`.
* Replace AC_INIT with AC_INIT and no arguments plus AC_CONFIG_SRCDIR.
* Replace AC_GNU_SOURCE with AC_USE_SYSTEM_EXTENSIONS.
* Replace AC_TRY_COMPILE with AC_COMPILE_IFELSE.
* Replace AC_TRY_LINK with AC_LINK_IFELSE.
autoupdate gets it right, except this one here:
--- a/gdbserver/configure.ac
+++ b/gdbserver/configure.ac
@@ -304,7 +304,7 @@ if test "$srv_linux_thread_db" = "yes"; then
AC_LINK_IFELSE([AC_LANG_PROGRAM([[]], [[]])],[found="-Wl,--dynamic-list"
RDYNAMIC='-Wl,--dynamic-list=$(srcdir)/proc-service.list'],[RDYNAMIC="-rdynamic"
LDFLAGS="$old_LDFLAGS $RDYNAMIC"
- AC_TRY_LINK([], [],
+ _au_m4_changequote([,])AC_TRY_LINK([], [],
[found="-rdynamic"],
[found="no"
RDYNAMIC=""])])
... which I had to convert manually.
The changes in the generated configure file only contain insignificant
whitespace changes, so that gives confidence that the conversion is
correct.
gdbserver/ChangeLog:
* configure.ac: Modernize.
* configure: Re-generate.
Change-Id: Ia769aaec2aafac595504f477da955e91dffa4d8f
Simon Marchi [Sat, 31 Oct 2020 12:30:57 +0000 (08:30 -0400)]
gdb: use AC_PROG_CC_STDC instead of AM_PROG_CC_STDC
`autoconf -Wall` notes that AM_PROG_CC_STDC is obsolete:
Fixes this autoconf warning:
configure.ac:40: warning: 'AM_PROG_CC_STDC': this macro is obsolete.
configure.ac:40: You should simply use the 'AC_PROG_CC' macro instead.
configure.ac:40: Also, your code should no longer depend upon 'am_cv_prog_cc_stdc',
configure.ac:40: but upon 'ac_cv_prog_cc_stdc'.
aclocal.m4:770: AM_PROG_CC_STDC is expanded from...
configure.ac:40: the top level
Since we build with a C++ compiler now, I don't think this is relevant.
If you look at the messages removed from gdbsupport/aclocal.m4, it says
that this functionality is now integrated in AC_PROG_CC, which we
already call. So it might not even make a difference.
We had a local version of AM_PROG_CC_STDC, in gdb/acinclude.m4 (only
used by gdb/configure.ac), remove it.
gdb/ChangeLog:
* acinclude.m4 (AM_PROG_CC_STDC): Remove.
* configure: Re-generate.
* configure.ac: Remove AM_PROG_CC_STDC.
gdbsupport/ChangeLog:
* aclocal.m4: Re-generate.
* configure: Re-generate.
* configure.ac: Remove AM_PROG_CC_STDC.
Change-Id: Ic824393598805d4f78cda9d119f8af46096e9c73
Simon Marchi [Sat, 31 Oct 2020 12:30:57 +0000 (08:30 -0400)]
gdb, gdbserver, gdbsupport: use AC_CANONICAL_{BUILD,HOST,TARGET} instead of AC_CANONICAL_SYSTEM
`autoreconf -Wall` notes that AC_CANONICAL_SYSTEM is obsolete:
configure.ac:36: warning: The macro `AC_CANONICAL_SYSTEM' is obsolete.
Replace it by AC_CANONICAL_BUILD, AC_CANONICAL_HOST and
AC_CANONICAL_TARGET in configure.ac files in gdb, gdbserver and
gdbsupport. All three macros may not be needed everywhere, but it is
hard to completely audit the configure files to see which are required,
so I think it's better (and that there's no downside) to just call all
three.
gdb/ChangeLog:
* configure.ac: Use AC_CANONICAL_{BUILD,HOST,TARGET} instead of
AC_CANONICAL_SYSTEM.
* configure: Re-generate.
gdbserver/ChangeLog:
* configure.ac: Use AC_CANONICAL_{BUILD,HOST,TARGET} instead of
AC_CANONICAL_SYSTEM.
* configure: Re-generate.
gdbsupport/ChangeLog:
* configure.ac: Use AC_CANONICAL_{BUILD,HOST,TARGET} instead of
AC_CANONICAL_SYSTEM.
* configure: Re-generate.
Change-Id: Ifd0e21f1e478634e768b5de1b8ee06a7f690d863
GDB Administrator [Sat, 31 Oct 2020 00:00:15 +0000 (00:00 +0000)]
Automatic date update in version.in
Simon Marchi [Fri, 30 Oct 2020 19:10:08 +0000 (15:10 -0400)]
gdb: introduce displaced_debug_printf
Move all debug prints of the "displaced" category to use a new
displaced_debug_printf macro, like what was done for infrun and others
earlier.
The debug output for one displaced step one amd64 looks like:
[displaced] displaced_step_prepare_throw: stepping process
3367044 now
[displaced] displaced_step_prepare_throw: saved 0x555555555042: 1e fa 31 ed 49 89 d1 5e 48 89 e2 48 83 e4 f0 50
[displaced] amd64_displaced_step_copy_insn: copy 0x555555555131->0x555555555042: b8 00 00 00 00 5d c3 0f 1f 84 00 00 00 00 00 f3
[displaced] displaced_step_prepare_throw: displaced pc to 0x555555555042
[displaced] resume_1: run 0x555555555042: b8 00 00 00
[displaced] displaced_step_restore: restored process
3367044 0x555555555042
[displaced] amd64_displaced_step_fixup: fixup (0x555555555131, 0x555555555042), insn = 0xb8 0x00 ...
[displaced] amd64_displaced_step_fixup: relocated %rip from 0x555555555047 to 0x555555555136
On test case needed to be updated because it relied on the specific
formatting of the message.
gdb/ChangeLog:
* infrun.h (displaced_debug_printf): New macro. Replace
displaced debug prints throughout to use it.
(displaced_debug_printf_1): New declaration.
(displaced_step_dump_bytes): Return string, remove ui_file
parameter, update all callers.
* infrun.c (displaced_debug_printf_1): New function.
(displaced_step_dump_bytes): Return string, remove ui_file
parameter
gdb/testsuite/ChangeLog:
* gdb.arch/amd64-disp-step-avx.exp: Update displaced step debug
expected output.
Change-Id: Ie78837f56431f6f98378790ba1e6051337bf6533
Simon Marchi [Fri, 30 Oct 2020 19:01:13 +0000 (15:01 -0400)]
gdb: rs6000_dwarf2_reg_to_regnum return -1 for unknown register number
With the current implementation of rs6000_dwarf2_reg_to_regnum, if an
unknown DWARF register number is passed, the same number is returned as
the internal GDB number. This assumes that the internal GDB register
numbers match the DWARF register numbers, which is not the case.
Change it to return -1, as documented in gdbarch.sh for the
dwarf2_reg_to_regnum method.
This fixes a failure in gdb.dwarf2/bad-regnum.exp:
(gdb) info addr foo1
-Symbol "foo1" is a variable in $.
-(gdb) FAIL: gdb.dwarf2/bad-regnum.exp: info addr foo1
+Symbol "foo1" is a variable in $bad_register_number.
+(gdb) PASS: gdb.dwarf2/bad-regnum.exp: info addr foo1
I ran the entire testsuite on powerpc64 (gcc203 on the compile farm) and
didn't see any regression.
gdb/ChangeLog:
* rs6000-tdep.c (rs6000_dwarf2_reg_to_regnum): Return -1 for
unknown register numbers.
Change-Id: I585aa07a08f845a46c36bfdb6d3118ea94f8f54d
Tom Tromey [Fri, 30 Oct 2020 16:27:12 +0000 (10:27 -0600)]
Have stamp-init depend on config.status
I recently wrote a patch to modify configure.tgt. However, I did this
incorrectly the first time, and had to go back and add another file.
After building, I was surprised that my changes did not seem to work.
I tracked this down to the fact that init.c had not been rebuilt after
my changes -- because the files I added to the build were already
older than the existing init.c.
This patch changes the gdb Makefile so that init.c will be rebuilt if
config.status changes. This should cover various scenarios that cause
a re-configure, like editing configure.tgt.
2020-10-30 Tom Tromey <tromey@adacore.com>
* Makefile.in (stamp-init): Depend on config.status.
H.J. Lu [Fri, 30 Oct 2020 13:51:10 +0000 (06:51 -0700)]
gold: Support GNU_PROPERTY_X86_ISA_1_BASELINE marker
* testsuite/gnu_property_test.sh: Updated.
H.J. Lu [Fri, 30 Oct 2020 13:49:57 +0000 (06:49 -0700)]
x86: Support GNU_PROPERTY_X86_ISA_1_BASELINE marker
GCC 11 supports -march=x86-64-v[234] to enable x86 micro-architecture ISA
levels:
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97250
X86 ISA markers are updated:
https://gitlab.com/x86-psABIs/x86-64-ABI/-/merge_requests/13
GNU_PROPERTY_X86_ISA_1_BASELINE is added and GNU_PROPERTY_X86_ISA_1_V[234]
are updated:
#define GNU_PROPERTY_X86_ISA_1_BASELINE (1U << 0)
#define GNU_PROPERTY_X86_ISA_1_V2 (1U << 1)
#define GNU_PROPERTY_X86_ISA_1_V3 (1U << 2)
#define GNU_PROPERTY_X86_ISA_1_V4 (1U << 3)
Add -z x86-64-baseline linker command line option to mark x86-64-baseline
ISA level as needed.
bfd/
PR gas/26703
* elfxx-x86.c (_bfd_x86_elf_link_setup_gnu_properties): Generate
GNU_PROPERTY_X86_ISA_1_BASELINE for -z x86-64-baseline.
binutils/
PR gas/26703
* readelf.c (decode_x86_isa): Handle
* GNU_PROPERTY_X86_ISA_1_BASELINE.
* testsuite/binutils-all/i386/empty.d: Updated.
* testsuite/binutils-all/i386/ibt.d: Likewise.
* testsuite/binutils-all/i386/pr21231a.d: Likewise.
* testsuite/binutils-all/i386/pr21231b.d: Likewise.
* testsuite/binutils-all/i386/shstk.d: Likewise.
* testsuite/binutils-all/x86-64/empty-x32.d: Likewise.
* testsuite/binutils-all/x86-64/empty.d: Likewise.
* testsuite/binutils-all/x86-64/ibt-x32.d: Likewise.
* testsuite/binutils-all/x86-64/ibt.d: Likewise.
* testsuite/binutils-all/x86-64/pr21231a.d: Likewise.
* testsuite/binutils-all/x86-64/pr21231b.d: Likewise.
* testsuite/binutils-all/x86-64/pr23494a-x32.d: Likewise.
* testsuite/binutils-all/x86-64/pr23494a.d: Likewise.
* testsuite/binutils-all/x86-64/pr23494c-x32.d: Likewise.
* testsuite/binutils-all/x86-64/pr23494c.d: Likewise.
* testsuite/binutils-all/x86-64/pr23494d-x32.d: Likewise.
* testsuite/binutils-all/x86-64/pr23494d.d: Likewise.
* testsuite/binutils-all/x86-64/pr23494e-x32.d: Likewise.
* testsuite/binutils-all/x86-64/pr23494e.d: Likewise.
* testsuite/binutils-all/x86-64/shstk-x32.d: Likewise.
* testsuite/binutils-all/x86-64/shstk.d: Likewise.
gas/
PR gas/26703
* config/tc-i386.c (output_insn): Update for
GNU_PROPERTY_X86_ISA_1_BASELINE.
* testsuite/gas/i386/property-1.d: Updated.
* testsuite/gas/i386/property-2.d: Likewise.
* testsuite/gas/i386/property-3.d: Likewise.
* testsuite/gas/i386/property-4.d: Likewise.
* testsuite/gas/i386/property-5.d: Likewise.
* testsuite/gas/i386/property-6.d: Likewise.
* testsuite/gas/i386/property-11.d: Likewise.
* testsuite/gas/i386/property-12.d: Likewise.
* testsuite/gas/i386/x86-64-property-1.d: Likewise.
* testsuite/gas/i386/x86-64-property-2.d: Likewise.
* testsuite/gas/i386/x86-64-property-3.d: Likewise.
* testsuite/gas/i386/x86-64-property-4.d: Likewise.
* testsuite/gas/i386/x86-64-property-5.d: Likewise.
* testsuite/gas/i386/x86-64-property-6.d: Likewise.
* testsuite/gas/i386/x86-64-property-11.d: Likewise.
* testsuite/gas/i386/x86-64-property-12.d: Likewise.
include/
PR gas/26703
* elf/common.h (GNU_PROPERTY_X86_ISA_1_BASELINE): New.
(GNU_PROPERTY_X86_ISA_1_V2): Uppdated.
(GNU_PROPERTY_X86_ISA_1_V3): Likewise.
(GNU_PROPERTY_X86_ISA_1_V4): Likewise.
ld/
PR gas/26703
* NEWS: Mention -z x86-64-baseline.
* ld.texi: Document -z x86-64-baseline.
* emulparams/x86-64-level.sh: Handle -z x86-64-baseline.
* testsuite/ld-elf/x86-feature-1a.rd: Update.
* testsuite/ld-elf/x86-feature-1b.rd: Likewise.
* testsuite/ld-elf/x86-feature-1c.rd: Likewise.
* testsuite/ld-elf/x86-feature-1d.rd: Likewise.
* testsuite/ld-elf/x86-feature-1e.rd: Likewise.
* testsuite/ld-i386/pr23372c.d: Likewise.
* testsuite/ld-i386/pr23486c.d: Likewise.
* testsuite/ld-i386/pr23486d.d: Likewise.
* testsuite/ld-i386/pr24322a.d: Likewise.
* testsuite/ld-i386/pr24322b.d: Likewise.
* testsuite/ld-i386/property-1a.r: Likewise.
* testsuite/ld-i386/property-2a.r: Likewise.
* testsuite/ld-i386/property-3.r: Likewise.
* testsuite/ld-i386/property-3a.r: Likewise.
* testsuite/ld-i386/property-4.r: Likewise.
* testsuite/ld-i386/property-4a.r: Likewise.
* testsuite/ld-i386/property-5.r: Likewise.
* testsuite/ld-i386/property-5a.r: Likewise.
* testsuite/ld-i386/property-7a.r: Likewise.
* testsuite/ld-i386/property-x86-3.d: Likewise.
* testsuite/ld-i386/property-x86-4a.d: Likewise.
* testsuite/ld-i386/property-x86-5.d: Likewise.
* testsuite/ld-i386/property-x86-cet1.d: Likewise.
* testsuite/ld-i386/property-x86-cet2a.d: Likewise.
* testsuite/ld-i386/property-x86-cet5a.d: Likewise.
* testsuite/ld-i386/property-x86-cet5b.d: Likewise.
* testsuite/ld-i386/property-x86-ibt1a.d: Likewise.
* testsuite/ld-i386/property-x86-ibt1b.d: Likewise.
* testsuite/ld-i386/property-x86-ibt2.d: Likewise.
* testsuite/ld-i386/property-x86-ibt3a.d: Likewise.
* testsuite/ld-i386/property-x86-ibt3b.d: Likewise.
* testsuite/ld-i386/property-x86-ibt4.d: Likewise.
* testsuite/ld-i386/property-x86-ibt5.d: Likewise.
* testsuite/ld-i386/property-x86-isa1.d: Likewise.
* testsuite/ld-i386/property-x86-isa2.d: Likewise.
* testsuite/ld-i386/property-x86-isa3.d: Likewise.
* testsuite/ld-i386/property-x86-shstk1a.d: Likewise.
* testsuite/ld-i386/property-x86-shstk1b.d: Likewise.
* testsuite/ld-i386/property-x86-shstk2.d: Likewise.
* testsuite/ld-i386/property-x86-shstk3a.d: Likewise.
* testsuite/ld-i386/property-x86-shstk3b.d: Likewise.
* testsuite/ld-i386/property-x86-shstk4.d: Likewise.
* testsuite/ld-i386/property-x86-shstk5.d: Likewise.
* testsuite/ld-x86-64/pr23372c-x32.d: Likewise.
* testsuite/ld-x86-64/pr23372c.d: Likewise.
* testsuite/ld-x86-64/pr23486c-x32.d: Likewise.
* testsuite/ld-x86-64/pr23486c.d: Likewise.
* testsuite/ld-x86-64/pr23486d-x32.d: Likewise.
* testsuite/ld-x86-64/pr23486d.d: Likewise.
* testsuite/ld-x86-64/pr24322a-x32.d: Likewise.
* testsuite/ld-x86-64/pr24322a.d: Likewise.
* testsuite/ld-x86-64/pr24322b-x32.d: Likewise.
* testsuite/ld-x86-64/pr24322b.d: Likewise.
* testsuite/ld-x86-64/pr24458a-x32.d: Likewise.
* testsuite/ld-x86-64/pr24458a.d: Likewise.
* testsuite/ld-x86-64/pr24458b-x32.d: Likewise.
* testsuite/ld-x86-64/pr24458b.d: Likewise.
* testsuite/ld-x86-64/pr24458c-x32.d: Likewise.
* testsuite/ld-x86-64/pr24458c.d: Likewise.
* testsuite/ld-x86-64/property-1a.r: Likewise.
* testsuite/ld-x86-64/property-2a.r: Likewise.
* testsuite/ld-x86-64/property-3.r: Likewise.
* testsuite/ld-x86-64/property-3a.r: Likewise.
* testsuite/ld-x86-64/property-4.r: Likewise.
* testsuite/ld-x86-64/property-4a.r: Likewise.
* testsuite/ld-x86-64/property-5.r: Likewise.
* testsuite/ld-x86-64/property-5a.r: Likewise.
* testsuite/ld-x86-64/property-7a.r: Likewise.
* testsuite/ld-x86-64/property-x86-3-x32.d: Likewise.
* testsuite/ld-x86-64/property-x86-3.d: Likewise.
* testsuite/ld-x86-64/property-x86-4a-x32.d: Likewise.
* testsuite/ld-x86-64/property-x86-4a.d: Likewise.
* testsuite/ld-x86-64/property-x86-5-x32.d: Likewise.
* testsuite/ld-x86-64/property-x86-5.d: Likewise.
* testsuite/ld-x86-64/property-x86-cet1-x32.d: Likewise.
* testsuite/ld-x86-64/property-x86-cet1.d: Likewise.
* testsuite/ld-x86-64/property-x86-cet2a-x32.d: Likewise.
* testsuite/ld-x86-64/property-x86-cet2a.d: Likewise.
* testsuite/ld-x86-64/property-x86-cet5a-x32.d: Likewise.
* testsuite/ld-x86-64/property-x86-cet5a.d: Likewise.
* testsuite/ld-x86-64/property-x86-cet5b-x32.d: Likewise.
* testsuite/ld-x86-64/property-x86-cet5b.d: Likewise.
* testsuite/ld-x86-64/property-x86-ibt1a-x32.d: Likewise.
* testsuite/ld-x86-64/property-x86-ibt1a.d: Likewise.
* testsuite/ld-x86-64/property-x86-ibt1b-x32.d: Likewise.
* testsuite/ld-x86-64/property-x86-ibt1b.d: Likewise.
* testsuite/ld-x86-64/property-x86-ibt2-x32.d: Likewise.
* testsuite/ld-x86-64/property-x86-ibt2.d: Likewise.
* testsuite/ld-x86-64/property-x86-ibt3a-x32.d: Likewise.
* testsuite/ld-x86-64/property-x86-ibt3a.d: Likewise.
* testsuite/ld-x86-64/property-x86-ibt3b-x32.d: Likewise.
* testsuite/ld-x86-64/property-x86-ibt3b.d: Likewise.
* testsuite/ld-x86-64/property-x86-ibt4-x32.d: Likewise.
* testsuite/ld-x86-64/property-x86-ibt4.d: Likewise.
* testsuite/ld-x86-64/property-x86-ibt5-x32.d: Likewise.
* testsuite/ld-x86-64/property-x86-isa1-x32.d: Likewise.
* testsuite/ld-x86-64/property-x86-isa1.d: Likewise.
* testsuite/ld-x86-64/property-x86-isa2-x32.d: Likewise.
* testsuite/ld-x86-64/property-x86-isa2.d: Likewise.
* testsuite/ld-x86-64/property-x86-isa3-x32.d: Likewise.
* testsuite/ld-x86-64/property-x86-isa3.d: Likewise.
* testsuite/ld-x86-64/property-x86-ibt5.d: Likewise.
* testsuite/ld-x86-64/property-x86-shstk1a-x32.d: Likewise.
* testsuite/ld-x86-64/property-x86-shstk1a.d: Likewise.
* testsuite/ld-x86-64/property-x86-shstk1b-x32.d: Likewise.
* testsuite/ld-x86-64/property-x86-shstk1b.d: Likewise.
* testsuite/ld-x86-64/property-x86-shstk2-x32.d: Likewise.
* testsuite/ld-x86-64/property-x86-shstk2.d: Likewise.
* testsuite/ld-x86-64/property-x86-shstk3a-x32.d: Likewise.
* testsuite/ld-x86-64/property-x86-shstk3a.d: Likewise.
* testsuite/ld-x86-64/property-x86-shstk3b-x32.d: Likewise.
* testsuite/ld-x86-64/property-x86-shstk3b.d: Likewise.
* testsuite/ld-x86-64/property-x86-shstk4-x32.d: Likewise.
* testsuite/ld-x86-64/property-x86-shstk4.d: Likewise.
* testsuite/ld-x86-64/property-x86-shstk5-x32.d: Likewise.
* testsuite/ld-x86-64/property-x86-shstk5.d: Likewise.
* testsuite/ld-i386/i386.exp: Run property-x86-isa4.
* testsuite/ld-i386/property-x86-isa4.d: New file.
* testsuite/ld-x86-64/property-x86-isa4-x32.d: Likewise.
* testsuite/ld-x86-64/property-x86-isa4.d: Likewise.
* ld/testsuite/ld-x86-64/x86-64.exp: Run property-x86-isa4
and property-x86-isa4-x32.
Przemyslaw Wirkus [Fri, 30 Oct 2020 10:27:24 +0000 (10:27 +0000)]
[PATCH][GAS] aarch64: Add WFIT instruction for Armv8.7-a
This patch adds new to Armv8.7 WFIT instruction which take one operand:
WFIT <Xt>
Where:
<Xt> is 64-bit name of the general-purpose source register, encoded in the
"Rd" field.
For more details regarding WFIT (Wait For Interrupt with Timeout) instruction for
Armv8.7-a please refer to Arm A64 Instruction set documentation for Armv8-A
architecture profile, see document pages 570 of [0].
[0]: https://developer.arm.com/docs/ddi0596/i
gas/ChangeLog:
2020-10-30 Przemyslaw Wirkus <przemyslaw.wirkus@arm.com>
* NEWS: Update docs.
* testsuite/gas/aarch64/system-5.d: Update test with WFIT insn.
* testsuite/gas/aarch64/system-5.s: Update test with WFIT insn.
opcodes/ChangeLog:
2020-10-30 Przemyslaw Wirkus <przemyslaw.wirkus@arm.com>
* aarch64-tbl.h (struct aarch64_opcode): New instruction WFIT.
* aarch64-asm-2.c: Regenerated.
* aarch64-dis-2.c: Regenerated.
* aarch64-opc-2.c: Regenerated.
Tankut Baris Aktemur [Fri, 30 Oct 2020 07:13:57 +0000 (08:13 +0100)]
gdb/infrun: disable pagination in fetch_inferior_event
Having pagination enabled when handling an inferior event gives the
user an option to quit, which causes early exit in GDB's flow and may
lead to half-baked state. For instance, here is a case where we quit
in the middle of handling an inferior exit:
$ gdb ./a.out
Reading symbols from ./a.out...
(gdb) set height 2
(gdb) run
Starting program: ./a.out
--Type <RET> for more, q to quit, c to continue without paging--q
Quit
Couldn't get registers: No such process.
(gdb) set height unlimited
Couldn't get registers: No such process.
(gdb) info threads
Id Target Id Frame
* 1 process 27098 Couldn't get registers: No such process.
Couldn't get registers: No such process.
(gdb)
Or suppose having a multi-threaded program like below:
static void *
fun (void *dummy)
{
int a = 1; /* break-here */
return NULL;
}
int
main (void)
{
pthread_t thread;
pthread_create (&thread, NULL, fun, NULL);
pthread_join (thread, NULL);
return 0;
}
If we define a breakpoint at line "break-here", we expect only Thread
2 to hit it.
$ gdb ./a.out
Reading symbols from ./a.out...
(gdb) break 7
Breakpoint 1 at 0x1182: file mt.c, line 7.
(gdb) set height 2
(gdb) run
Starting program: ./a.out
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[New Thread 0x7ffff77c4700 (LWP 23048)]
--Type <RET> for more, q to quit, c to continue without paging--q
Quit
(gdb) set height unlimited
(gdb) info thread
Id Target Id Frame
* 1 Thread 0x7ffff7fe3740 (LWP 23044) "a.out" 0x00007ffff7bbed2d in ...
2 Thread 0x7ffff77c4700 (LWP 23048) "a.out" fun (dummy=0x0) at mt.c:7
(gdb)
The prompt for continuation was triggered because Thread 2 hit the
breakpoint. (If we had hit 'c', we were going to see that stop event,
but we didn't.) The context did not switch to Thread 2. GDB also did
not execute several other things it would normally do in
infrun.c:normal_stop after outputting "[Switching to Thread ...]" (but
it seems harmless in this case). If we 'continue' at this state, both
threads run until termination, and we don't see the breakpoint hit
event ever.
Here is another related and more complicated scenario that leads to a
GDB crash. Create two inferiors, one sitting on top of a native
target, and the other on a remote target, so that we have a
multi-target setting, like so:
(gdb) i inferiors
Num Description Connection Executable
1 process 13786 1 (native) a.out
* 2 process 13806 2 (remote ...) target:a.out
Next, resume both inferiors to run until termination:
(gdb) set schedule-multiple on
(gdb) set height 2
(gdb) continue
Continuing.
--Type <RET> for more, q to quit, c to continue without paging--[Inferior 2 (process 13806) exited normally]
terminate called after throwing an instance of 'gdb_exception_error'
Aborted
Here, GDB first received a termination event from Inferior 1. GDB
attempted to print this event, triggering a "prompt for continue", and
GDB started polling for events, hoping to get an input from the user.
However, the exit event from Inferior 2 was received instead. So, GDB
started processing an exit event while being in the middle of
processing another exit event. It was not ready for this situation
and eventually crashed.
To address these cases, temporarily disable pagination in
fetch_inferior_event. This doesn't affect commands like 'info
threads', 'backtrace', or 'thread apply'.
Regression-tested on X86_64 Linux.
gdb/ChangeLog:
2020-10-30 Tankut Baris Aktemur <tankut.baris.aktemur@intel.com>
* infrun.c (fetch_inferior_event): Temporarily disable pagination.
gdb/testsuite/ChangeLog:
2020-10-30 Tankut Baris Aktemur <tankut.baris.aktemur@intel.com>
* gdb.base/paginate-after-ctrl-c-running.exp: Update with no pagination
behavior.
* gdb.base/paginate-bg-execution.exp: Ditto.
* gdb.base/paginate-inferior-exit.exp: Ditto.
* gdb.base/double-prompt-target-event-error.c: Remove.
* gdb.base/double-prompt-target-event-error.exp: Remove.
Pedro Alves [Thu, 9 Jul 2020 19:12:15 +0000 (20:12 +0100)]
Move lookup_selected_frame to frame.c
This function is now external, and isn't really threads related. Move
it to frame.c.
gdb/ChangeLog:
* thread.c (lookup_selected_frame): Move ...
* frame.c (lookup_selected_frame): ... here.
Change-Id: Ia96b79c15767337c68efd3358bcc715ce8e26c15
Pedro Alves [Fri, 30 Oct 2020 17:26:15 +0000 (18:26 +0100)]
Make scoped_restore_current_thread's cdtors exception free (RFC)
If the remote target closes while we're reading registers/memory for
restoring the selected frame in scoped_restore_current_thread's dtor,
the corresponding TARGET_CLOSE_ERROR error is swallowed by the
scoped_restore_current_thread's dtor, because letting exceptions
escape from a dtor is bad. It isn't great to lose that errors like
that, though. I've been thinking about how to avoid it, and I came up
with this patch.
The idea here is to make scoped_restore_current_thread's dtor do as
little as possible, to avoid any work that might throw in the first
place. And to do that, instead of having the dtor call
restore_selected_frame, which re-finds the previously selected frame,
just record the frame_id/level of the desired selected frame, and have
get_selected_frame find the frame the next time it is called. In
effect, this implements most of Cagney's suggestion, here:
/* On demand, create the selected frame and then return it. If the
selected frame can not be created, this function prints then throws
an error. When MESSAGE is non-NULL, use it for the error message,
otherwize use a generic error message. */
/* FIXME: cagney/2002-11-28: At present, when there is no selected
frame, this function always returns the current (inner most) frame.
It should instead, when a thread has previously had its frame
selected (but not resumed) and the frame cache invalidated, find
and then return that thread's previously selected frame. */
extern struct frame_info *get_selected_frame (const char *message);
The only thing missing to fully implement that would be to make
reinit_frame_cache just clear selected_frame instead of calling
select_frame(NULL), and the call select_frame(NULL) explicitly in the
places where we really wanted reinit_frame_cache to go back to the
current frame too. That can done separately, though, I'm not
proposing to do that in this patch.
Note that this patch renames restore_selected_frame to
lookup_selected_frame, and adds a new restore_selected_frame function
that doesn't throw, to be paired with the also-new save_selected_frame
function.
There's a restore_selected_frame function in infrun.c that I think can
be replaced by the new one in frame.c.
Also done in this patch is make the get_selected_frame's parameter be
optional, so that we don't have to pass down nullptr explicitly all
over the place.
lookup_selected_frame should really move from thread.c to frame.c, but
I didn't do that here, just to avoid churn in the patch while it
collects comments. I did make it extern and declared it in frame.h
already, preparing for the move. I will do the move as a follow up
patch if people agree with this approach.
Incidentally, this patch alone would fix the crashes fixed by the
previous patches in the series, because with this,
scoped_restore_current_thread's constructor doesn't throw either.
gdb/ChangeLog:
* blockframe.c (block_innermost_frame): Use get_selected_frame.
* frame.c
(scoped_restore_selected_frame::scoped_restore_selected_frame):
Use save_selected_frame. Save language as well.
(scoped_restore_selected_frame::~scoped_restore_selected_frame):
Use restore_selected_frame, and restore language as well.
(selected_frame_id, selected_frame_level): New.
(selected_frame): Update comments.
(save_selected_frame, restore_selected_frame): New.
(get_selected_frame): Use lookup_selected_frame.
(get_selected_frame_if_set): Delete.
(select_frame): Record selected_frame_level and selected_frame_id.
* frame.h (scoped_restore_selected_frame) <m_level, m_lang>: New
fields.
(get_selected_frame): Make 'message' parameter optional.
(get_selected_frame_if_set): Delete declaration.
(select_frame): Update comments.
(save_selected_frame, restore_selected_frame)
(lookup_selected_frame): Declare.
* gdbthread.h (scoped_restore_current_thread) <m_lang>: New field.
* infrun.c (struct infcall_control_state) <selected_frame_level>:
New field.
(save_infcall_control_state): Use save_selected_frame.
(restore_selected_frame): Delete.
(restore_infcall_control_state): Use restore_selected_frame.
* stack.c (select_frame_command_core, frame_command_core): Use
get_selected_frame.
* thread.c (restore_selected_frame): Rename to ...
(lookup_selected_frame): ... this and make extern. Select the
current frame if the frame level is -1.
(scoped_restore_current_thread::restore): Also restore the
language.
(scoped_restore_current_thread::~scoped_restore_current_thread):
Don't try/catch.
(scoped_restore_current_thread::scoped_restore_current_thread):
Save the language as well. Use save_selected_frame.
Change-Id: I73fd1cfc40d8513c28e5596383b7ecd8bcfe700f
GDB Administrator [Fri, 30 Oct 2020 00:00:15 +0000 (00:00 +0000)]
Automatic date update in version.in
Simon Marchi [Thu, 29 Oct 2020 22:11:14 +0000 (18:11 -0400)]
gdb: fix documentation of gdbarch_displaced_step_hw_singlestep
The last commit missed updating the doc of
gdbarch_displaced_step_hw_singlestep to avoid mentioning the removed
parameter, this one fixes it.
gdb/ChangeLog:
* gdbarch.sh (displaced_step_hw_singlestep): Adjust
documentation.
* gdbarch.h: Re-generate.
Change-Id: I33675d9a6c253443eee707e8285d16615ce20aaa
Simon Marchi [Thu, 29 Oct 2020 22:02:13 +0000 (18:02 -0400)]
gdb: remove parameter of gdbarch_displaced_step_hw_singlestep
I noticed that the closure parameter of
gdbarch_displaced_step_hw_singlestep is never used by any
implementation of the method, so this patch removes it.
gdb/ChangeLog:
* gdbarch.sh (displaced_step_hw_singlestep): Remove closure
parameter.
* aarch64-tdep.c (aarch64_displaced_step_hw_singlestep):
Likewise.
* aarch64-tdep.h (aarch64_displaced_step_hw_singlestep):
Likewise.
* arch-utils.c (default_displaced_step_hw_singlestep):
Likewise.
* arch-utils.h (default_displaced_step_hw_singlestep):
Likewise.
* rs6000-tdep.c (ppc_displaced_step_hw_singlestep):
Likewise.
* s390-tdep.c (s390_displaced_step_hw_singlestep):
Likewise.
* gdbarch.c: Re-generate.
* gdbarch.h: Re-generate.
* infrun.c (resume_1): Adjust.
Change-Id: I7354f0b22afc2692ebff0cd700a462db8f389fc1
Tom Tromey [Thu, 29 Oct 2020 21:04:33 +0000 (15:04 -0600)]
Remove call to exec_close
There's no need to call exec_close from ~progspace, because that
method just does some cleanup that's already going to be done during
destruction. This patch removes the call.
gdb/ChangeLog
2020-10-29 Tom Tromey <tom@tromey.com>
* progspace.c (program_space::~program_space): Don't call
exec_close.
Tom Tromey [Thu, 29 Oct 2020 21:04:33 +0000 (15:04 -0600)]
Don't change current program space in exec_target::close
Now that we've removed the macros and moved various functions to be
methods on program_space (removing uses of current_program_space),
it's clear that exec_target::close can operate on program spaces
without changing the current program space.
gdb/ChangeLog
2020-10-29 Tom Tromey <tom@tromey.com>
* exec.c (exec_target::close): Don't change current program
space.
Tom Tromey [Thu, 29 Oct 2020 21:04:33 +0000 (15:04 -0600)]
Change add_target_sections_of_objfile to method on program_space
This changes add_target_sections_of_objfile to be a method on
program_space. It is renamed to be another overload of
add_target_sections, because they are semantically equivalent in a
sense.
gdb/ChangeLog
2020-10-29 Tom Tromey <tom@tromey.com>
* symfile.c (add_symbol_file_command): Update.
* exec.c (program_space::add_target_sections): Rename.
* symfile-mem.c (symbol_file_add_from_memory): Update.
* progspace.h (struct program_space) <add_target_sections>:
Declare new overload.
* exec.h (add_target_sections_of_objfile): Don't declare.
Tom Tromey [Thu, 29 Oct 2020 21:04:33 +0000 (15:04 -0600)]
Change add_target_sections to method on program_space
This changes add_target_sections to be a method on program_space.
Like the earlier change to remove_target_sections, this makes sense
because this function is manipulating data that is stored on the
program space.
gdb/ChangeLog
2020-10-29 Tom Tromey <tom@tromey.com>
* solib.c (solib_map_sections): Update.
* exec.c (program_space::add_target_sections): Now a method.
(exec_file_attach): Update.
* exec.h (add_target_sections): Don't declare.
* progspace.h (struct program_space) <add_target_sections>:
Declare.
Tom Tromey [Thu, 29 Oct 2020 21:04:33 +0000 (15:04 -0600)]
Change remove_target_sections to method on program_space
This changes remove_target_sections to be a method on program_space.
This makes sense because this function manipulates data that is
attached to the program space.
gdb/ChangeLog
2020-10-29 Tom Tromey <tom@tromey.com>
* progspace.h (struct program_space) <remove_target_sections>:
Declare.
* exec.c (program_space::remove_target_sections): Now a method.
* exec.h (remove_target_sections): Don't declare.
Tom Tromey [Thu, 29 Oct 2020 21:04:33 +0000 (15:04 -0600)]
Change program_space_empty_p to method on program_space
This changes program_space_empty_p to be a method on program_space.
It also changes it to return bool. I removed the "_p" suffix because
"empty" is a "well-known" C++ method name.
gdb/ChangeLog
2020-10-29 Tom Tromey <tom@tromey.com>
* inferior.c (delete_inferior): Update.
* progspace.c (program_space::empty): Rename from
program_space_empty_p. Return bool.
* progspace.h (struct program_space) <empty>: New method.
(program_space_empty_p): Don't declare.
Tom Tromey [Thu, 29 Oct 2020 21:04:33 +0000 (15:04 -0600)]
Change clear_program_space_solib_cache to method on program_space
This changes clear_program_space_solib_cache to be a method on
program_space. Also, it removes a call to this function from the
program_space destructor, as that is not necessary.
gdb/ChangeLog
2020-10-29 Tom Tromey <tom@tromey.com>
* progspace.c (program_space::~program_space): Don't call
clear_program_space_solib_cache.
(program_space::clear_solib_cache): Rename from
clear_solib_cache.
* solib.c (handle_solib_event): Update.
* progspace.h (struct program_space) <clear_solib_cache>: New
method.
(clear_program_space_solib_cache): Don't declare.
Tom Tromey [Thu, 29 Oct 2020 21:04:33 +0000 (15:04 -0600)]
Remove symfile_objfile macro
This removes the symfile_objfile macro, in favor of just spelling out
the member access.
gdb/ChangeLog
2020-10-29 Tom Tromey <tom@tromey.com>
* windows-tdep.c (windows_solib_create_inferior_hook): Update.
* target.c (info_target_command): Update.
* symfile.c (syms_from_objfile_1, finish_new_objfile)
(symbol_file_clear, reread_symbols): Update.
* symfile-mem.c (add_symbol_file_from_memory_command): Update.
* stabsread.c (scan_file_globals): Update.
* solib.c (update_solib_list): Update.
* solib-svr4.c (elf_locate_base, open_symbol_file_object)
(svr4_fetch_objfile_link_map, enable_break)
(svr4_relocate_main_executable)
(svr4_iterate_over_objfiles_in_search_order): Update.
* solib-frv.c (lm_base, enable_break)
(frv_relocate_main_executable): Update.
(main_got, frv_fdpic_find_canonical_descriptor): Update.
(frv_fetch_objfile_link_map): Update.
* solib-dsbt.c (lm_base, dsbt_relocate_main_executable): Update.
* solib-darwin.c (darwin_solib_create_inferior_hook): Update.
* solib-aix.c (solib_aix_solib_create_inferior_hook): Update.
* remote.c (remote_target::get_offsets): Update.
(remote_target::start_remote)
(extended_remote_target::post_attach): Update.
* objfiles.c (entry_point_address_query): Update.
* nto-procfs.c (nto_procfs_target::create_inferior): Update.
* minsyms.c (get_symbol_leading_char): Update.
* frame.c (inside_main_func): Update.
* progspace.h (symfile_objfile): Remove macro.
Tom Tromey [Thu, 29 Oct 2020 21:04:33 +0000 (15:04 -0600)]
Change program_space::ebfd to a gdb_bfd_ref_ptr
This changes program_space::ebfd to a gdb_bfd_ref_ptr, removing some
manual management.
gdb/ChangeLog
2020-10-29 Tom Tromey <tom@tromey.com>
* exec.c (exec_file_attach): Update.
* progspace.c (program_space::exec_close): Update.
* progspace.h (struct program_space) <ebfd>: Now a
gdb_bfd_ref_ptr.
<set_exec_bfd>: Change argument type.
<exec_bfd>: Update.
Tom Tromey [Thu, 29 Oct 2020 21:04:33 +0000 (15:04 -0600)]
Remove the exec_bfd macro
This removes the exec_bfd macro, in favor of new accessors on
program_space. In one spot the accessor can't be used; but this is
still a big improvement over the macro, IMO.
gdb/ChangeLog
2020-10-29 Tom Tromey <tom@tromey.com>
* windows-tdep.c (windows_solib_create_inferior_hook): Update.
* symfile.c (reread_symbols): Update.
* symfile-mem.c (add_symbol_file_from_memory_command)
(add_vsyscall_page): Update.
* source-cache.c (source_cache::get_plain_source_lines): Update.
* solib-svr4.c (find_program_interpreter, elf_locate_base)
(svr4_current_sos_direct, svr4_exec_displacement)
(svr4_relocate_main_executable): Update.
(svr4_iterate_over_objfiles_in_search_order): Update.
* solib-frv.c (enable_break2, enable_break): Update.
* solib-dsbt.c (lm_base, enable_break): Update.
* solib-darwin.c (find_program_interpreter)
(darwin_solib_create_inferior_hook): Update.
* sol-thread.c (rw_common, ps_pdmodel): Update.
* rs6000-nat.c (rs6000_nat_target::create_inferior): Update.
* remote.c (compare_sections_command)
(remote_target::trace_set_readonly_regions): Update.
* remote-sim.c (get_sim_inferior_data)
(gdbsim_target::create_inferior, gdbsim_target::create_inferior): Update.
(gdbsim_target_open, gdbsim_target::files_info): Update.
* exec.h (exec_bfd): Remove macro.
* progspace.c (initialize_progspace): Update.
* proc-service.c (ps_addr_to_core_addr, core_addr_to_ps_addr):
Update.
* nto-procfs.c (nto_procfs_target::post_attach)
(nto_procfs_target::create_inferior): Update.
* maint.c (maintenance_info_sections): Update.
* linux-thread-db.c (thread_db_target::get_thread_local_address):
Update.
* infcmd.c (post_create_inferior): Update.
* gcore.c (default_gcore_arch, default_gcore_target): Update.
(objfile_find_memory_regions): Update.
* exec.c (validate_exec_file, exec_file_attach)
(exec_read_partial_read_only, print_section_info): Update.
* corelow.c (core_target_open): Update.
* corefile.c (reopen_exec_file, validate_files): Update.
* arm-tdep.c (gdb_print_insn_arm): Update.
* arch-utils.c (gdbarch_update_p, default_print_insn): Update.
* progspace.h (struct program_space) <exec_bfd, set_exec_bfd>: New
methods.
Tom Tromey [Thu, 29 Oct 2020 21:04:33 +0000 (15:04 -0600)]
Remove current_target_sections macro
This removes the current_target_sections macro, replacing it with uses
of the appropriate member from current_program_space.
gdb/ChangeLog
2020-10-29 Tom Tromey <tom@tromey.com>
* progspace.h (current_target_sections): Remove macro.
* solib-svr4.c (scan_dyntag): Update.
* solib-dsbt.c (scan_dyntag): Update.
* exec.c (exec_target::close): Update.
(add_target_sections, add_target_sections_of_objfile)
(remove_target_sections, exec_target::get_section_table)
(exec_target::files_info, set_section_command)
(exec_set_section_address, exec_target::has_memory)
(exec_target::has_memory): Update.
Tom Tromey [Thu, 29 Oct 2020 21:04:33 +0000 (15:04 -0600)]
Remove exec_bfd_mtime define
This removes the exec_bfd_mtime define, in favor of directly using the
appropriate member of the current program space.
gdb/ChangeLog
2020-10-29 Tom Tromey <tom@tromey.com>
* source-cache.c (source_cache::get_plain_source_lines): Use
current_program_space.
* corefile.c (reopen_exec_file): Use current_program_space.
* exec.c (exec_file_attach): Use current_program_space.
* exec.h (exec_bfd_mtime): Remove.
Tom Tromey [Thu, 29 Oct 2020 21:04:33 +0000 (15:04 -0600)]
Remove commented-out code from gcore.c
I found some code in gcore.c that has been commented out since
d3420b2fce5e (Mark Kettenis 2003-09-04 166) #if 1 /* See if this even matters... */
This patch deletes this entire function, because the body was reduced
to just "return 0".
gdb/ChangeLog
2020-10-29 Tom Tromey <tom@tromey.com>
* gcore.c (default_gcore_mach): Remove.
(create_gcore_bfd): Update.
Tom Tromey [Thu, 29 Oct 2020 21:04:33 +0000 (15:04 -0600)]
Change exec_close to be a method on program_space
exec_close uses the current program space, so it seemed cleaner to
change it to be a method on program_space. This patch makes this
change.
gdb/ChangeLog
2020-10-29 Tom Tromey <tom@tromey.com>
* progspace.c (program_space::exec_close): New method, from
exec_close in exec.c.
* exec.c (exec_close): Move to progspace.c.
(exec_target::close, exec_file_attach): Update.
* progspace.h (struct program_space) <exec_close>: Declare
method.
Tom Tromey [Thu, 29 Oct 2020 21:04:33 +0000 (15:04 -0600)]
Remove exec_filename macro
This removes the exec_filename macro, replacing it with uses of the
member of current_program_space. This also renames that member, and
changes it to be a unique pointer.
gdb/ChangeLog
2020-10-29 Tom Tromey <tom@tromey.com>
* progspace.h (struct program_space) <exec_filename>: Rename from
pspace_exec_filename. Now a unique_xmalloc_ptr.
* inferior.c (print_selected_inferior): Update.
(print_inferior): Update.
* mi/mi-main.c (print_one_inferior): Update.
* exec.h (exec_filename): Remove macro.
* corefile.c (get_exec_file): Update.
* exec.c (exec_close): Update.
(exec_file_attach): Update.
* progspace.c (clone_program_space): Update.
(print_program_space): Update.
Tom Tromey [Thu, 29 Oct 2020 21:04:33 +0000 (15:04 -0600)]
Add target_section constructor
This adds a constructor to target_section, simplifying the code that
creates instances of this.
gdb/ChangeLog
2020-10-29 Tom Tromey <tom@tromey.com>
* target-section.h (struct target_section): Add constructor.
* exec.c (build_section_table, add_target_sections_of_objfile):
Update.
* corelow.c (core_target::build_file_mappings): Update.
Nick Clifton [Thu, 29 Oct 2020 20:13:00 +0000 (20:13 +0000)]
Fix an illegal memory access problem when processing secondary relocs for architectures which support both REL and RELA relocs.
PR 26809
* elf.c (_bfd_elf_slurp_secondary_reloc_section): Use the correct
sized reloc reading function.
(_bfd_elf_write_secondary_reloc_section): Use the correct sized
reloc writing function.
Przemyslaw Wirkus [Thu, 29 Oct 2020 16:30:46 +0000 (16:30 +0000)]
aarch64: Fix DSB instruction 'missing immediate expression' errors
This patch fixes errors with DSB instruction after introduction of DSB nXS
variant. That change would cause GAS to reject valid DSB immediate string
operands.
gas/ChangeLog:
2020-10-28 Przemyslaw Wirkus <przemyslaw.wirkus@arm.com>
* config/tc-aarch64.c (parse_operands): Check for C0-C15 value of DSB
immediate string operand.
* testsuite/gas/aarch64/system-4.d: Update test.
* testsuite/gas/aarch64/system-4.s: Update test.
H.J. Lu [Thu, 29 Oct 2020 16:19:25 +0000 (09:19 -0700)]
dwarf: Also match abbrev base when searching abbrev list
A .debug_abbrev section can have multiple CUs. When caching abbrev list,
we need to check abbrev base to support multiple CUs.
PR binutils/26808
* dwarf.c (abbrev_list): Add abbrev_base.
(new_abbrev_list): Add an abbrev_base argument and record it.
(find_abbrev_list_by_abbrev_offset): Add an abbrev_base argument
and match it.
(process_debug_info): Pass abbrev_base to new_abbrev_list and
find_abbrev_list_by_abbrev_offset.
(display_debug_abbrev): Pass 0 abbrev_base to new_abbrev_list
and find_abbrev_list_by_abbrev_offset.
* testsuite/binutils-all/x86-64/pr26808.dump: New file.
* testsuite/binutils-all/x86-64/pr26808.dwp.bz2: Likewise.
* testsuite/binutils-all/x86-64/x86-64.exp: Run PR binutils/26808
test.
Tankut Baris Aktemur [Thu, 29 Oct 2020 14:33:39 +0000 (15:33 +0100)]
gdb: restore thread after detaching or killing an inferior
The "detach inferiors N" command causes the current inferior to
switch. E.g.:
$ gdb a.out
Reading symbols from a.out...
(gdb) start
...
(gdb) add-inferior
[New inferior 2]
Added inferior 2 on connection 1 (native)
(gdb) inferior 2
[Switching to inferior 2 [<null>] (<noexec>)]
(gdb) info inferiors
Num Description Connection Executable
1 process 18242 1 (native) /path/to/a.out
* 2 <null> 1 (native)
(gdb) detach inferiors 1
Detaching from program: /path/to/a.out, process 18242
[Inferior 1 (process 18242) detached]
(gdb) info inferiors
Num Description Connection Executable
* 1 <null> /path/to/a.out
2 <null> 1 (native)
(gdb)
The same switch happens with the "kill inferiors N" command. Prevent
it by restoring the current thread.
gdb/ChangeLog:
2020-10-29 Tankut Baris Aktemur <tankut.baris.aktemur@intel.com>
PR gdb/19318
* inferior.c (detach_inferior_command): Restore the current thread.
(kill_inferior_command): Ditto.
gdb/testsuite/ChangeLog:
2020-10-29 Tankut Baris Aktemur <tankut.baris.aktemur@intel.com>
* gdb.base/kill-detach-inferiors-cmd.exp: Check that 'kill
inferiors' and 'detach inferiors' do not change the current
inferior.
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