Coverity discovered a number of resource leaks in Gnulib's glob.c.
This commit backports the Gnulib commits that fix the leaks.
gnulib/ChangeLog:
* patches/0003-Fix-glob-c-Coverity-issues.patch: New file.
* update-gnulib.sh: List the above.
* import/glob.c: Rebuild.
Currently the 'info types' command will return symbols that correspond
to Fortran modules. This is because the symbols are created with
domain MODULE_DOMAIN and address_class LOC_TYPEDEF. The address_class
LOC_TYPEDEF is the same address_class used for type symbols which is
why the modules show up when listing types.
This commit explicitly prevents symbols in the MODULE_DOMAIN from
appearing when we search for symbols in the TYPES_DOMAIN, this
prevents the Fortran module symbols from appearing in the output of
'info types'.
gdb/ChangeLog:
* symtab.c (search_symbols): Don't include MODULE_DOMAIN symbols
when searching for types.
gdb/testsuite/ChangeLog:
* gdb.fortran/info-types.exp: Add module.
* gdb.fortran/info-types.f90: Update expected results.
Implement an la_print_typedef method for Fortran, this allows 'info
types' to work for Fortran. The implementation is just copied from
ada_print_typedef (with the appropriate changes).
To support the testing of this patch I added a new proc,
fortran_character1, to lib/fortran.exp which returns a regexp to match
a 1-byte character type. The regexp returned is correct for current
versions of gFortran. All of the other regexp are guesses based on
all of the other support procs in lib/fortran.exp, I haven't tested
them myself.
gdb/ChangeLog:
* f-lang.c (f_language_defn): Use f_print_typedef.
* f-lang.h (f_print_typedef): Declare.
* f-typeprint.c (f_print_typedef): Define.
gdb/testsuite/ChangeLog:
* gdb.fortran/info-types.exp: New file.
* gdb.fortran/info-types.f90: New file.
* lib/fortran.exp (fortran_character1): New proc.
PR 24931
* objdump.c (source_comment): New static variable.
(option_values): Add OPTION_SOURCE_COMMENT.
(long_opions): Add --source-comment.
(print_line): If source comment is set, use it as a prefix to the
source code line.
(main): Handle OPTION_SOURCE_COMMENT.
* doc/binutils.texi: Document the new option.
* NEWS: Mention the new feature.
* testsuite/binutils-all/objdump.exp (test_objdump_S): Add tests
of the -S and --source-comment options.
../../gdb/nat/linux-namespaces.c: In function ‘void mnsh_main(int)’:
../../gdb/nat/linux-namespaces.c:604:8: warning: ‘fd’ may be used uninitialized in this function [-Wmaybe-uninitialized]
close (fd);
~~~~~~^~~~
And the warning is correct -- mnsh_recv_message can return -1 and leave fd
uninitialized, and mnsh_main will still call close (fd) if that happens.
Initialize fd to -1 to avoid that.
gdb/ChangeLog:
2019-08-27 Christian Biesinger <cbiesinger@google.com>
* nat/linux-namespaces.c (mnsh_main): Initialize fd (to -1).
The 'info variables', its alias 'whereis', and 'info functions' all
include non-debug symbols in the output by default. The list of
non-debug symbols can sometimes be quite long, resulting in the
debug symbol based results being scrolled off the screen.
This commit adds a '-n' flag to all of the commands listed above that
excludes the non-debug symbols from the results, leaving just the
debug symbol based results.
gdb/ChangeLog:
* cli/cli-utils.c (info_print_options_defs): Delete.
(make_info_print_options_def_group): Delete.
(extract_info_print_options): Delete.
(info_print_command_completer): Delete.
(info_print_args_help): Add extra parameter, and optionally
include text about -n flag.
* cli/cli-utils.h (struct info_print_options): Delete.
(extract_info_print_options): Delete declaration.
(info_print_command_completer): Delete declaration.
(info_print_args_help): Add extra parameter, extend header
comment.
* python/python.c (gdbpy_rbreak): Pass additional parameter to
search_symbols.
* stack.c (struct info_print_options): New type.
(info_print_options_defs): New file scoped variable.
(make_info_print_options_def_group): New static function.
(info_print_command_completer): New static function.
(info_locals_command): Update to use new local functions.
(info_args_command): Likewise.
(_initialize_stack): Add extra parameter to calls to
info_print_args_help.
* symtab.c (search_symbols): Add extra parameter, use this to
possibly excluse non-debug symbols.
(symtab_symbol_info): Add extra parameter, which is passed on to
search_symbols.
(struct info_print_options): New type.
(info_print_options_defs): New file scoped variable.
(make_info_print_options_def_group): New static function.
(info_print_command_completer): New static function.
(info_variables_command): Update to use local functions, and pass
extra parameter through to symtab_symbol_info.
(info_functions_command): Likewise.
(info_types_command): Pass additional argument through to
symtab_symbol_info.
(rbreak_command): Pass extra argument to search_symbols.
(_initialize_symtab): Add extra arguments for calls to
info_print_args_help, and update help text for 'info variables',
'whereis', and 'info functions' commands.
* symtab.h (search_symbols): Add extra argument to declaration.
* NEWS: Mention new flags.
gdb/doc/ChangeLog:
* gdb.texinfo (Symbols): Add information about the -n flag to
"info variables" and "info functions".
gdb/testsuite/ChangeLog:
* gdb.base/info-fun.exp: Extend to test the -n flag for 'info
functions'. Reindent as needed.
* gdb.base/info-var-f1.c: New file.
* gdb.base/info-var-f2.c: New file.
* gdb.base/info-var.exp: New file.
* gdb.base/info-var.h: New file.
gas * config/tc-arm.c (parse_neon_mov): Add check to accept vector
register to both the arguments in VMOV instruction.
* testsuite/gas/arm/mve-vmov-1.d: Modify.
* testsuite/gas/arm/mve-vmov-1.s: Likewise.
* testsuite/gas/arm/mve-vorr.d: Likewise.
opcodes * arm-dis.c (mve_opcodes): Add entry for MVE_VMOV_VEC_TO_VEC.
(is_mve_undefined): Add case for MVE_VMOV_VEC_TO_VEC.
(print_insn_mve): Add condition to check Qm==Qn of VORR instruction.
The two functions are extremely similar; this factors out their code into
a shared _internal function.
gdb/ChangeLog:
2019-08-26 Christian Biesinger <cbiesinger@google.com>
* symtab.c (lookup_static_symbol): Call the new function (and move
it down to be next to lookup_global_symbol).
(struct global_sym_lookup_data): Add block_enum member and rename to...
(struct global_or_static_sym_lookup_data): ...this.
(lookup_symbol_global_iterator_cb): Pass block_index instead of
GLOBAL_BLOCK to lookup_symbol_in_objfile and rename to...
(lookup_symbol_global_or_static_iterator_cb): ...this.
(lookup_global_or_static_symbol): New function.
(lookup_global_symbol): Call new function.
When using catch catch/rethrow/catch, a libstdcxx with SDT probes is required
for both the regexp argument, and the convenience variable $_exception (
https://sourceware.org/gdb/current/onlinedocs/gdb/Set-Catchpoints.html ).
Currently, when using these features with a libstdcxx without SDT probes, we
get the cryptic error message:
...
not stopped at a C++ exception catchpoint
...
Improve this by instead emitting the more helpful:
...
did not find exception probe (does libstdcxx have SDT probes?)
...
Tested on x86_64-linux.
gdb/ChangeLog:
2019-08-26 Tom de Vries <tdevries@suse.de>
PR c++/24852
* break-catch-throw.c (fetch_probe_arguments): Improve error mesage
when pc_probe.prob == NULL.
gdb/testsuite/ChangeLog:
2019-08-26 Tom de Vries <tdevries@suse.de>
PR c++/24852
* gdb.cp/no-libstdcxx-probe.exp: New test.
The tcl proc skip_libstdcxx_probe_tests currently returns 0 if the probe tests
need to be skipped, while tcl interprets 0 as false rather than true, which is
confusing.
Fix this by making skip_libstdcxx_probe_tests return 1 if the probe tests need
to be skipped.
Tested on x86_64-linux.
gdb/testsuite/ChangeLog:
2019-08-26 Tom de Vries <tdevries@suse.de>
* lib/gdb.exp (skip_libstdcxx_probe_tests_prompt): Return 1 if probe
* tests need to be skipped.
* gdb.cp/exceptprint.exp: Update call to skip_libstdcxx_probe_tests.
* gdb.mi/mi-catch-cpp-exceptions.exp: Update call to
mi_skip_libstdcxx_probe_tests.
The way unrecognized escape sequences are handled has changed in
Python 3.8: users now see a SyntaxWarning message, which will
eventually become a SyntaxError in future versions of Python:
(gdb) source /blabla/gdb.python/py-xmethods/py-xmethods.py
/blabla/gdb.python/py-xmethods/py-xmethods.py:204: SyntaxWarning: invalid escape seque
nce \+
'operator\+',
/blabla/gdb.python/py-xmethods/py-xmethods.py:211: SyntaxWarning: invalid escape seque
nce \+
'operator\+\+',
One of our testcases, gdb.python/py-xmethods.exp, contains strings in
the form of "operator\+". This is not recognized by Python, but is
still needed by the testsuite to work properly. The solution is
simple: we just have to make sure these strings are marked as
raw (i.e, r""). This is what this patch does. I took the opportunity
to also convert other strings to raw, which, in two cases, allowed the
removal of an extra backslash.
I tested this using Python 3.7 and Python 3.8, and everything works
fine.
I think I could push this as obvious, but decided to send it to
gdb-patches just in case.
gdb/testsuite/ChangeLog:
2019-08-26 Sergio Durigan Junior <sergiodj@redhat.com>
* gdb.python/py-xmethods.exp: Use raw strings when passing
arguments to SimpleXMethodMatcher.
li is a pseudo instruction in RISC-V, it might expand to more than one
instructions if the immediate value can't fit addi or lui, but the
assembler will always using 4-byte instructions during expansion.
For example:
li a0, 0x12345001
will expand into
12345537 lui a0,0x12345
00150513 addi a0,a0,1
but addi could be compress into
0505 addi a0,a0,1
It because load_const use macro_build to emit instructions,
and macro_build call append_insn, and expect it will compress
it if possible, but the fact is append_insn never compress anything,
So this patch redirect the li expansion flow to normal instruction
emission flow via md_assemble, added md_assemblef as an wrapper for
that for easier emit instruction with printf-style argument to build
instruction.
gas/ChangeLog:
* tc-riscv.c (md_assemblef): New.
(load_const) Use md_assemblef instead of macro_build to emit
instructions.
* testsuite/gas/riscv/li32.d: New.
* testsuite/gas/riscv/li32.s: Ditto.
* testsuite/gas/riscv/li64.d: Ditto.
* testsuite/gas/riscv/li64.s: Ditto.
gcc 4.8 (and probably other versions too) doesn't like that the local
variable symbol_linkage has the same name as the enum class defined in
the same context:
CXX dwarf2read.o
/home/smarchi/src/binutils-gdb/gdb/dwarf2read.c: In member function ‘dwarf2_per_cu_data* dw2_debug_names_iterator::next()’:
/home/smarchi/src/binutils-gdb/gdb/dwarf2read.c:5850:22: error: ‘symbol_linkage’ is not a class, namespace, or enumeration
} symbol_linkage = symbol_linkage::unknown;
^
Rename the local variable to avoid this.
This problem was originally reported with the Netbsd builder on the
buildbot, which uses gcc 5.5, I believe. I am not able to test it on
that builder right now, but chances are that the fix will work there
too.
gdb/ChangeLog:
* dwarf2read.c (dw2_debug_names_iterator::next): Rename local
variable symbol_linkage to symbol_linkage_.
gdb::optional<bool> is dangerous, because it's easy to do:
if (opt_bool)
when you actually meant
if (*opt_bool)
or vice-versa. The first checks if the optional is set, the second
checks if the wrapped bool is true.
Replace it with an enum that explicitly defines the three possible
states.
gdb/ChangeLog:
* dwarf2read.c (dw2_debug_names_iterator::next): Use enum to
represent whether the symbol is static, dynamic, or we don't
know.
My compiler (g++ 8.2) can't tell that *bsc_ptr and *slot_ptr are
only used in the cases when it does get initialized. Just initialize
the vars earlier to avoid the warning, there does not seem to be a
downside to it.
../../gdb/symtab.c: In function ‘block_symbol lookup_static_symbol(const char*, domain_enum)’:
../../gdb/symtab.c:1366:11: warning: ‘slot’ may be used uninitialized in this function [-Wmaybe-uninitialized]
xfree (slot->value.not_found.name);
~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~
../../gdb/symtab.c:2578:29: note: ‘slot’ was declared here
struct symbol_cache_slot *slot;
^~~~
../../gdb/symtab.c:1405:3: warning: ‘bsc’ may be used uninitialized in this function [-Wmaybe-uninitialized]
if (bsc == NULL)
^~
../../gdb/symtab.c:2577:30: note: ‘bsc’ was declared here
struct block_symbol_cache *bsc;
^~~
../../gdb/symtab.c: In function ‘block_symbol lookup_global_symbol(const char*, const block*, domain_enum)’:
../../gdb/symtab.c:1366:11: warning: ‘slot’ may be used uninitialized in this function [-Wmaybe-uninitialized]
xfree (slot->value.not_found.name);
~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~
../../gdb/symtab.c:2658:29: note: ‘slot’ was declared here
struct symbol_cache_slot *slot;
^~~~
../../gdb/symtab.c:1409:14: warning: ‘bsc’ may be used uninitialized in this function [-Wmaybe-uninitialized]
++bsc->collisions;
~~~~~^~~~~~~~~~
../../gdb/symtab.c:2657:30: note: ‘bsc’ was declared here
struct block_symbol_cache *bsc;
^~~
gdb/ChangeLog:
2019-08-22 Christian Biesinger <cbiesinger@google.com>
* symtab.c (symbol_cache_lookup): Always initialize *bsc_ptr and *slot_ptr.
Found on a GOT reference to __ehdr_start, which is tweaked to be
undefined weak at some stages of linking. SYMBOL_REFERENCES_LOCAL
isn't a sufficient test.
* elf64-ppc.c (ppc64_elf_edit_toc): Exclude undefined weak
symbols from GOT optimisation.
I need to use 'gdb_dlopen' inside 'gdbsupport/', but it's not yet
supported there. This commit moves 'gdb-dlfcn.[ch]' to 'gdbsupport/',
which makes it available also on gdbserver.
gdb/ChangeLog:
2019-08-23 Sergio Durigan Junior <sergiodj@redhat.com>
* configure.ac: Don't check for 'dlfcn.h' (moved to
gdbsupport/common.m4).
* Makefile.in (COMMON_SFILES): Move 'gdb-dlfcn.c' to
'gdbsupport/'.
(HFILES_NO_SRCDIR): Likewise, for 'gdb-dlfcn.h'.
* compile/compile-c-support.c: Include
'gdbsupport/gdb-dlfcn.h'.
* gdbsupport/common.m4: Check for 'dlfcn.h'.
* gdb-dlfcn.c: Move to...
* gdbsupport/gdb-dlfcn.c: ... here.
* gdb-dlfcn.h: Move to...
* gdbsupport/gdb-dlfcn.h: ... here.
gdb/gdbserver/ChangeLog:
2019-08-23 Sergio Durigan Junior <sergiodj@redhat.com>
* Makefile.in (SFILES): Add 'gdbsupport/gdb-dlfcn.c'.
(OBS): Add 'gdbsupport/gdb-dlfcn.o'.
* config.in: Regenerate.
* configure: Regenerate.
The nios2 prologue analyzer was mistakenly using an unsigned int field
to represent a 32-bit signed value. This caused problems with an
incorrect conversion being applied to negative values when they were
automatically promoted for addition to a 64-bit CORE_ADDR value.
This patch fixes test failures in gdb.base/large-frame.exp and
gdb.dwarf2/dw2-ref-missing-frame.exp. Normally the nios2 backend
prefers to use the dwarf2 unwinder so the prologue analyzer is only
invoked if there is no dwarf2 information.
2019-08-23 Sandra Loosemore <sandra@codesourcery.com>
gdb/
* nios2-tdep.c (struct reg_value): Improve comments. Make
the offset field signed.
The PLT GOT entry should point to the first PLT entry which contains the
runtime linker function. It was pointing back to the symbol PLT entry
causing an infinite loop.
I found this when testing the OpenRISC glibc port which uses the runtime
dynamic linker. It seems other libc's we use so far have not been
making use of the initial PLT GOT entries.
bfd/ChangeLog:
* elf32-or1k.c (or1k_elf_finish_dynamic_symbol): Use correct value for
PLT GOT entries.
PR 24456
* elf.c (bfd_section_from_shdr): Issue an informative warning
message and continue processing other sections after encountering
a reloc section for a section which already has other relocs
associated with it.
PR 24829
* dwarf.c (check_uvalue): New function. Ensures that a block's
size is valid.
(read_and_display_attr_value): Use check_value when processsing
DW_FORM_block<n> attributes.
PyFile_FromString and PyFile_AsFile have been removed in Python 3.
There is no obvious replacement that works here, and we can't just
pass our FILE* to a DLL in Windows because it may use a different
C runtime.
So we just call a Python function which reads and executes file
contents. Care must be taken to execute it in the context of
__main__.
Tested by inverting the ifdef and running the testsuite on Debian
Linux (even without the patch, I failed at running the testsuite
on Windows). I did test with both Python 2 and 3.
gdb/ChangeLog:
2019-08-22 Christian Biesinger <cbiesinger@google.com>
* python/lib/gdb/__init__.py (_execute_file): New function.
* python/python.c (python_run_simple_file): Call gdb._execute_file
on Windows.
This racy fail message, reported in PR24929:
...
FAIL: gdb.multi/multi-term-settings.exp: inf1_how=attach: inf2_how=attach: \
stop with control-c
...
does not make clear which gdb_test fails here:
...
if {$expect_ttou} {
gdb_test "" "Quit" "stop with control-c"
} else {
gdb_test "" "received signal SIGINT.*" "stop with control-c"
}
...
Fix this by making the gdb_test message argument more informative.
Tested on x86_64-linux.
gdb/testsuite/ChangeLog:
2019-08-22 Tom de Vries <tdevries@suse.de>
* gdb.multi/multi-term-settings.exp (coretest): Make gdb_test messages
more informative.
This patch adds support for following CPUs:
Cortex-M35P, Cortex-A77, Cortex-A76AE.
Related specifications can be found at https://developer.arm.com/ip-products/processors.
gas/ChangeLog:
* config/tc-arm.c: New entries for Cortex-M35P, Cortex-A77,
and Cortex-A76AE.
* doc/c-arm.texi: Document new processors.
* testsuite/gas/arm/cpu-cortex-a76ae.d: New test.
* testsuite/gas/arm/cpu-cortex-a77.d: New test.
* testsuite/gas/arm/cpu-cortex-m35p.d: New test.
bfd/ChangeLog:
* cpu-arm.c: New entries for Cortex-M35P, Cortex-A77, Cortex-A76AE.
* atof-generic.c (atof_generic): Do not ignore leading zeros if
they appear after a decimal point.
* testsuite/gas/all/float.s: Extend test to include a number with
a leading decimal point followed by several zeroes.
* testsuite/gas/i386/fp.s: Likewise.
* testsuite/gas/i386/fp.d: Update expected output.
The Fortran parser contains some code that looks like it was probably
inherited from the C/C++ parser as it checks to see if the current
language is C++, which should never be true when we're in the Fortran
parser.
gdb/ChangeLog:
* f-exp.y (yylex): Remove is_a_field_of_this local variable, and
all uses as this was never set to anything but a zero value.
This patch fixes a few linker crashes due to TLS code reaching an assert when it
shouldn't.
The first scenario is with weak TLS symbols that remain weak during linking. In
this case the mid-end would not have seen a TLS symbol and so wouldn't have
allocated the TLS section. We currently assert here and the linker crashes with
a not very useful message.
This patch changes this to return the value 0 for the TLS symbol in question
emulating what lld and gold and other BFD targets do. However because weak TLS
is implementation defined and we don't define any behavior for it I also emit a
warning to the user to inform them of such.
Secondly when a strong TLS reference is undefined. The linker crashes even after
it correctly reported that there is an undefined reference. This changes it so
that it gracefully exits and reports a useful error.
bfd/ChangeLog:
PR ld/24601
* elfnn-aarch64.c (aarch64_relocate): Handle weak TLS and undefined TLS.
Also Pass input_bfd to _bfd_aarch64_elf_resolve_relocation.
* elfxx-aarch64.c (_bfd_aarch64_elf_resolve_relocation): Use it.
* elfxx-aarch64.h (_bfd_aarch64_elf_resolve_relocation): Emit warning
for weak TLS.
ld/ChangeLog:
PR ld/24601
* testsuite/ld-aarch64/aarch64-elf.exp (undef-tls, weak-tls): New.
* testsuite/ld-aarch64/undef-tls.d: New test.
* testsuite/ld-aarch64/undef-tls.s: New test.
* testsuite/ld-aarch64/weak-tls.d: New test.
* testsuite/ld-aarch64/weak-tls.s: New test.
The syntax of the directive is:
.float16 <0-n decimal numbers>
e.g.
.float16 0.5
.float16 10.2, NaN, 452.09
The floats will always be encoded using the binary16 format as described in the
IEEE 754-2008 standard. There is no need to support Arm's alternative half-precision
format since AArch64 only supports the IEEE format.
gas * config/tc-aarch64.c: Add float16 directive and add "Hh" to
acceptable float characters.
* doc/c-aarch64.texi: Documentation for float16 directive.
* testsuite/gas/aarch64/float16-be.d: New test.
* testsuite/gas/aarch64/float16-le.d: New test.
* testsuite/gas/aarch64/float16.s: New test.
* NEWS: Add NEWS entry.
This patch removes use of st_target_internal to cache the result of
comparing symbol names against CMSE_PREFIX. The problem with setting
a bit in st_target_internal in swap_symbol_in is that calling
bfd_elf_sym_name from swap_symbol_in requires symtab_hdr, and you
don't know for sure whether swap_symbol_in is operating on dynsyms
(and thus elf_tdata (abfd)->dynsymtab_hdr should be used) or on the
normal symtab (thus elf_tdata (abfd)->symtab_hdr). You can make an
educated guess based on abfd->flags & DYNAMIC but that relies on
knowing a lot about calls to bfd_elf_get_elf_syms, and is fragile in
the face of possible future changes.
include/
* elf/arm.h (ARM_GET_SYM_CMSE_SPCL, ARM_SET_SYM_CMSE_SPCL): Delete.
bfd/
* elf32-arm.c (cmse_scan): Don't use ARM_GET_SYM_CMSE_SPCL,
instead recognize CMSE_PREFIX in symbol name.
(elf32_arm_gc_mark_extra_sections): Likewise.
(elf32_arm_filter_cmse_symbols): Don't test ARM_GET_SYM_CMSE_SPCL.
(elf32_arm_swap_symbol_in): Don't invoke ARM_SET_SYM_CMSE_SPCL.
Running 'with' without arguments crashes GDB. This fixes it.
gdb/ChangeLog:
2019-08-21 Bogdan Harjoc <harjoc@gmail.com>
* cli/cli-cmds.c (with_command_1): Error out if no arguments.
gdb/testsuite/ChangeLog:
2019-08-21 Pedro Alves <palves@redhat.com>
* gdb.base/with.exp: Test "with" with no arguments.
gdb/ChangeLog:
2019-08-21 Christian Biesinger <cbiesinger@google.com>
* tui/tui-data.h (tui_gen_win_info): Add an =default
move constructor, required by some GCC versions.
Chengdu Haiguang IC Design Co., Ltd (Hygon) is a Joint Venture between
AMD and Haiguang Information Technology Co.,Ltd., which aims at
providing high performance x86 processors for the China server market.
Its first generation processor codename is Dhyana, which originates
from AMD technology and shares most of the architecture with AMD's
family 17h, but with different CPU Vendor ID("HygonGenuine")/Family
series number(Family 18h).
gdb/ChangeLog:
2019-08-21 Jinke Fan <fanjinke51@yeah.net>
* go32-nat.c (go32_sysinfo): Add hygon_p.
The test-case gdb-caching-proc.exp tests each gdb_caching_proc in
gdb/testsuite/lib/*.exp. However, the order of .exp file being tested can
change from run to run, because of using glob.
Fix this by sorting the glob result.
Tested on x86_64-linux.
gdb/testsuite/ChangeLog:
2019-08-21 Tom de Vries <tdevries@suse.de>
* gdb.base/gdb-caching-proc.exp: Sort files.
