This introduces obstack_strndup and changes gdb to use it.
Note that obstack_strndup works like savestring, and not exactly like
xstrndup. The difference is that obstack_strndup uses the passed-in
length, while xstrndup uses strnlen to choose the length.
gdb/ChangeLog
2019-08-06 Tom Tromey <tom@tromey.com>
* stabsread.c (patch_block_stabs, read_one_struct_field)
(read_enum_type): Use obstack_strndup.
* rust-exp.y (rust_parser::copy_name): Use obstack_strndup.
* gdb_obstack.h (obstack_strndup): Use obstack_strndup.
* dwarf2read.c (guess_full_die_structure_name)
(anonymous_struct_prefix): Use obstack_strndup.
* dbxread.c (cp_set_block_scope): Use obstack_strndup.
* c-exp.y (yylex): Use obstack_strndup.
* ada-exp.y (write_object_renaming, write_ambiguous_var)
(write_var_or_type): Use obstack_strndup.
I touched symtab.h and was surprised to see how many files were
rebuilt. I looked into it a bit, and found that defs.h includes
gdbarch.h, which in turn includes many things.
gdbarch.h is only needed by a minority ofthe files in gdb, so this
patch removes the include from defs.h and updates the fallout.
I did "wc -l" on the files in build/gdb/.deps; this patch reduces the
line count from 139935 to 137030; so there are definitely future
build-time savings here.
Note that while I configured with --enable-targets=all, it's possible
that some *-nat.c file needs an update. I could not test all of
these. The buildbot caught a few problems along these lines.
gdb/ChangeLog
2019-07-10 Tom Tromey <tom@tromey.com>
* defs.h: Don't include gdbarch.h.
* aarch64-ravenscar-thread.c, aarch64-tdep.c, alpha-bsd-tdep.h,
alpha-linux-tdep.c, alpha-mdebug-tdep.c, arch-utils.h, arm-tdep.h,
ax-general.c, btrace.c, buildsym-legacy.c, buildsym.h, c-lang.c,
cli/cli-decode.h, cli/cli-dump.c, cli/cli-script.h,
cli/cli-style.h, coff-pe-read.h, compile/compile-c-support.c,
compile/compile-cplus.h, compile/compile-loc2c.c, corefile.c,
cp-valprint.c, cris-linux-tdep.c, ctf.c, d-lang.c, d-namespace.c,
dcache.c, dicos-tdep.c, dictionary.c, disasm-selftests.c,
dummy-frame.c, dummy-frame.h, dwarf2-frame-tailcall.c,
dwarf2expr.c, expression.h, f-lang.c, frame-base.c,
frame-unwind.c, frv-linux-tdep.c, gdbarch-selftests.c, gdbtypes.h,
go-lang.c, hppa-nbsd-tdep.c, hppa-obsd-tdep.c, i386-dicos-tdep.c,
i386-tdep.h, ia64-vms-tdep.c, interps.h, language.c,
linux-record.c, location.h, m2-lang.c, m32r-linux-tdep.c,
mem-break.c, memattr.c, mn10300-linux-tdep.c, nios2-linux-tdep.c,
objfiles.h, opencl-lang.c, or1k-linux-tdep.c, p-lang.c,
parser-defs.h, ppc-tdep.h, probe.h, python/py-record-btrace.c,
record-btrace.c, record.h, regcache-dump.c, regcache.h,
riscv-fbsd-tdep.c, riscv-linux-tdep.c, rust-exp.y,
sh-linux-tdep.c, sh-nbsd-tdep.c, source-cache.c,
sparc-nbsd-tdep.c, sparc-obsd-tdep.c, sparc-ravenscar-thread.c,
sparc64-fbsd-tdep.c, std-regs.c, target-descriptions.h,
target-float.c, tic6x-linux-tdep.c, tilegx-linux-tdep.c, top.c,
tracefile.c, trad-frame.c, type-stack.h, ui-style.c, utils.c,
utils.h, valarith.c, valprint.c, varobj.c, x86-tdep.c,
xml-support.h, xtensa-linux-tdep.c, cli/cli-cmds.h: Update.
* s390-linux-nat.c, procfs.c, inf-ptrace.c: Likewise.
PR rust/24414 points out that the Rust lexer uses strtoul when lexing
an integer, and that this can give the wrong results in some
situations.
This patch changes it to use strtoulst, like most of the rest of gdb.
It also adds a self test.
Tested on x86-64 Fedora 29 using an i686 build.
gdb/ChangeLog
2019-04-09 Ivan Begert <ivanbegert@gmail.com>
Tom Tromey <tromey@adacore.com>
PR rust/24414:
* rust-exp.y (rust_parser::lex_number): Use strtoulst.
(rust_lex_int_test): Change "value" to be LONGEST.
(rust_lex_tests): Add test for long integer literal.
This rewrites gdb's TRY/CATCH to plain C++ try/catch. The patch was
largely written by script, though one change (to a comment in
common-exceptions.h) was reverted by hand.
gdb/ChangeLog
2019-04-08 Tom Tromey <tom@tromey.com>
* xml-support.c: Use C++ exception handling.
* x86-linux-nat.c: Use C++ exception handling.
* windows-nat.c: Use C++ exception handling.
* varobj.c: Use C++ exception handling.
* value.c: Use C++ exception handling.
* valprint.c: Use C++ exception handling.
* valops.c: Use C++ exception handling.
* unittests/parse-connection-spec-selftests.c: Use C++ exception
handling.
* unittests/cli-utils-selftests.c: Use C++ exception handling.
* typeprint.c: Use C++ exception handling.
* tui/tui.c: Use C++ exception handling.
* tracefile-tfile.c: Use C++ exception handling.
* top.c: Use C++ exception handling.
* thread.c: Use C++ exception handling.
* target.c: Use C++ exception handling.
* symmisc.c: Use C++ exception handling.
* symfile-mem.c: Use C++ exception handling.
* stack.c: Use C++ exception handling.
* sparc64-linux-tdep.c: Use C++ exception handling.
* solib.c: Use C++ exception handling.
* solib-svr4.c: Use C++ exception handling.
* solib-spu.c: Use C++ exception handling.
* solib-frv.c: Use C++ exception handling.
* solib-dsbt.c: Use C++ exception handling.
* selftest-arch.c: Use C++ exception handling.
* s390-tdep.c: Use C++ exception handling.
* rust-lang.c: Use C++ exception handling.
* rust-exp.y: Use C++ exception handling.
* rs6000-tdep.c: Use C++ exception handling.
* rs6000-aix-tdep.c: Use C++ exception handling.
* riscv-tdep.c: Use C++ exception handling.
* remote.c: Use C++ exception handling.
* remote-fileio.c: Use C++ exception handling.
* record-full.c: Use C++ exception handling.
* record-btrace.c: Use C++ exception handling.
* python/python.c: Use C++ exception handling.
* python/py-value.c: Use C++ exception handling.
* python/py-utils.c: Use C++ exception handling.
* python/py-unwind.c: Use C++ exception handling.
* python/py-type.c: Use C++ exception handling.
* python/py-symbol.c: Use C++ exception handling.
* python/py-record.c: Use C++ exception handling.
* python/py-record-btrace.c: Use C++ exception handling.
* python/py-progspace.c: Use C++ exception handling.
* python/py-prettyprint.c: Use C++ exception handling.
* python/py-param.c: Use C++ exception handling.
* python/py-objfile.c: Use C++ exception handling.
* python/py-linetable.c: Use C++ exception handling.
* python/py-lazy-string.c: Use C++ exception handling.
* python/py-infthread.c: Use C++ exception handling.
* python/py-inferior.c: Use C++ exception handling.
* python/py-gdb-readline.c: Use C++ exception handling.
* python/py-framefilter.c: Use C++ exception handling.
* python/py-frame.c: Use C++ exception handling.
* python/py-finishbreakpoint.c: Use C++ exception handling.
* python/py-cmd.c: Use C++ exception handling.
* python/py-breakpoint.c: Use C++ exception handling.
* python/py-arch.c: Use C++ exception handling.
* printcmd.c: Use C++ exception handling.
* ppc-linux-tdep.c: Use C++ exception handling.
* parse.c: Use C++ exception handling.
* p-valprint.c: Use C++ exception handling.
* objc-lang.c: Use C++ exception handling.
* mi/mi-main.c: Use C++ exception handling.
* mi/mi-interp.c: Use C++ exception handling.
* mi/mi-cmd-stack.c: Use C++ exception handling.
* mi/mi-cmd-break.c: Use C++ exception handling.
* main.c: Use C++ exception handling.
* linux-thread-db.c: Use C++ exception handling.
* linux-tdep.c: Use C++ exception handling.
* linux-nat.c: Use C++ exception handling.
* linux-fork.c: Use C++ exception handling.
* linespec.c: Use C++ exception handling.
* language.c: Use C++ exception handling.
* jit.c: Use C++ exception handling.
* infrun.c: Use C++ exception handling.
* infcmd.c: Use C++ exception handling.
* infcall.c: Use C++ exception handling.
* inf-loop.c: Use C++ exception handling.
* i386-tdep.c: Use C++ exception handling.
* i386-linux-tdep.c: Use C++ exception handling.
* guile/scm-value.c: Use C++ exception handling.
* guile/scm-type.c: Use C++ exception handling.
* guile/scm-symtab.c: Use C++ exception handling.
* guile/scm-symbol.c: Use C++ exception handling.
* guile/scm-pretty-print.c: Use C++ exception handling.
* guile/scm-ports.c: Use C++ exception handling.
* guile/scm-param.c: Use C++ exception handling.
* guile/scm-math.c: Use C++ exception handling.
* guile/scm-lazy-string.c: Use C++ exception handling.
* guile/scm-frame.c: Use C++ exception handling.
* guile/scm-disasm.c: Use C++ exception handling.
* guile/scm-cmd.c: Use C++ exception handling.
* guile/scm-breakpoint.c: Use C++ exception handling.
* guile/scm-block.c: Use C++ exception handling.
* guile/guile-internal.h: Use C++ exception handling.
* gnu-v3-abi.c: Use C++ exception handling.
* gdbtypes.c: Use C++ exception handling.
* frame.c: Use C++ exception handling.
* frame-unwind.c: Use C++ exception handling.
* fbsd-tdep.c: Use C++ exception handling.
* f-valprint.c: Use C++ exception handling.
* exec.c: Use C++ exception handling.
* event-top.c: Use C++ exception handling.
* event-loop.c: Use C++ exception handling.
* eval.c: Use C++ exception handling.
* dwarf2read.c: Use C++ exception handling.
* dwarf2loc.c: Use C++ exception handling.
* dwarf2-frame.c: Use C++ exception handling.
* dwarf2-frame-tailcall.c: Use C++ exception handling.
* dwarf-index-write.c: Use C++ exception handling.
* dwarf-index-cache.c: Use C++ exception handling.
* dtrace-probe.c: Use C++ exception handling.
* disasm-selftests.c: Use C++ exception handling.
* darwin-nat.c: Use C++ exception handling.
* cp-valprint.c: Use C++ exception handling.
* cp-support.c: Use C++ exception handling.
* cp-abi.c: Use C++ exception handling.
* corelow.c: Use C++ exception handling.
* completer.c: Use C++ exception handling.
* compile/compile-object-run.c: Use C++ exception handling.
* compile/compile-object-load.c: Use C++ exception handling.
* compile/compile-cplus-symbols.c: Use C++ exception handling.
* compile/compile-c-symbols.c: Use C++ exception handling.
* common/selftest.c: Use C++ exception handling.
* common/new-op.c: Use C++ exception handling.
* cli/cli-script.c: Use C++ exception handling.
* cli/cli-interp.c: Use C++ exception handling.
* cli/cli-cmds.c: Use C++ exception handling.
* c-varobj.c: Use C++ exception handling.
* btrace.c: Use C++ exception handling.
* breakpoint.c: Use C++ exception handling.
* break-catch-throw.c: Use C++ exception handling.
* arch-utils.c: Use C++ exception handling.
* amd64-tdep.c: Use C++ exception handling.
* ada-valprint.c: Use C++ exception handling.
* ada-typeprint.c: Use C++ exception handling.
* ada-lang.c: Use C++ exception handling.
* aarch64-tdep.c: Use C++ exception handling.
gdb/gdbserver/ChangeLog
2019-04-08 Tom Tromey <tom@tromey.com>
* server.c: Use C++ exception handling.
* linux-low.c: Use C++ exception handling.
* gdbreplay.c: Use C++ exception handling.
This removes the "paren_depth" global. In most cases, it is made into
a static global in a given parser. I consider this a slight
improvement, because it makes it clear that the variable isn't used
for communication between different modules of gdb. The one exception
is the Rust parser, which already incorporates all local state into a
transient object; in this case the parser depth is now a member.
gdb/ChangeLog
2019-04-04 Tom Tromey <tom@tromey.com>
* rust-exp.y (struct rust_parser) <paren_depth>: New member.
(rustyylex, rust_lex_test_init, rust_lex_test_one)
(rust_lex_test_sequence, rust_lex_test_push_back): Update.
* parser-defs.h (paren_depth): Don't declare.
* parse.c (paren_depth): Remove global.
(parse_exp_in_context): Update.
* p-exp.y (paren_depth): New global.
(pascal_parse): Initialize it.
* m2-exp.y (paren_depth): New global.
(m2_parse): Initialize it.
* go-exp.y (paren_depth): New global.
(go_parse): Initialize it.
* f-exp.y (paren_depth): New global.
(f_parse): Initialize it.
* d-exp.y (paren_depth): New global.
(d_parse): Initialize it.
* c-exp.y (paren_depth): New global.
(c_parse): Initialize it.
* ada-lex.l (paren_depth): New global.
(lexer_init): Initialize it.
This changes parse_language into a method of parser_state. This patch
was written by a script.
gdb/ChangeLog
2019-04-04 Tom Tromey <tom@tromey.com>
* rust-exp.y: Replace "parse_language" with method call.
* p-exp.y:
(yylex): Replace "parse_language" with method call.
* m2-exp.y:
(yylex): Replace "parse_language" with method call.
* go-exp.y (classify_name): Replace "parse_language" with method
call.
* f-exp.y (yylex): Replace "parse_language" with method call.
* d-exp.y (lex_one_token): Replace "parse_language" with method
call.
* c-exp.y:
(lex_one_token, classify_name, yylex): Replace "parse_language"
with method call.
* ada-exp.y (find_primitive_type, type_char)
(type_system_address): Replace "parse_language" with method call.
All the real (not test) uses of parser_state pass 10 as the
"initial_size" parameter, and it seems to me that there's no real
reason to require callers to set this. This patch removes this
parameter.
gdb/ChangeLog
2019-04-04 Tom Tromey <tom@tromey.com>
* dtrace-probe.c (dtrace_probe::build_arg_exprs): Update.
* stap-probe.c (stap_parse_argument): Update.
* stap-probe.h (struct stap_parse_info) <stap_parse_info>: Remove
initial_size parameter.
* rust-exp.y (rust_lex_tests): Update.
* parse.c (parser_state): Update.
(parse_exp_in_context): Update.
* parser-defs.h (struct parser_state) <parser_state>: Remove
"initial_size" parameter.
This commit applies all changes made after running the gdb/copyright.py
script.
Note that one file was flagged by the script, due to an invalid
copyright header
(gdb/unittests/basic_string_view/element_access/char/empty.cc).
As the file was copied from GCC's libstdc++-v3 testsuite, this commit
leaves this file untouched for the time being; a patch to fix the header
was sent to gcc-patches first.
gdb/ChangeLog:
Update copyright year range in all GDB files.
This makes the Rust parser a pure parser and removes all the
(non-constant) globals from rust-exp.y. This seemed like a nice
simplification to me and I think it should probably be applied to all
the parsers. Perhaps it would be good to go even one step farther and
have all parsers derive from parser_state.
Tested on x86-64 Fedora 26.
gdb/ChangeLog
2018-07-20 Tom Tromey <tom@tromey.com>
* rust-exp.y: Now a pure parser. Update all rules.
(%union): Move earlier.
(current_parser, work_obstack): Remove globals.
(rust_parser, ~rust_parser): Update.
(class rust_parser) <copy_name, concat3, crate_name, super_name,
lex_character, lex_number, lex_string, lex_identifier,
rust_lookup_type, convert_params_to_types, convert_ast_to_type,
convert_name, convert_params_to_expression,
convert_ast_to_expression, ast_basic_type, ast_operation,
ast_compound_assignment, rust_op, ast_literal, ast_dliteral,
ast_structop, ast_structop_anonymous, ast_unary, ast_cast,
ast_call_ish, ast_path, ast_string, ast_struct, ast_range,
ast_array_type, ast_slice_type, ast_reference_type,
ast_pointer_type, ast_function_type, ast_tuple_type>: New methods.
(rust_parse): Update.
(rustyyerror, rustyylex): Add parser parameter.
(rust_lex_test_one, rust_lex_int_test, rust_lex_exception_test)
(rust_lex_stringish_test, rust_lex_test_sequence)
(rust_lex_test_trailing_dot, rust_lex_test_completion)
(rust_lex_test_push_back, rust_lex_tests): Update.
While working on the parser code, I noticed that yyerror is exported
from each parser. It is used by this code in parse.c:
TRY
{
if (lang->la_parser (&ps))
lang->la_error (NULL);
}
However, it seems to me that la_error will never be called here,
because in every case, la_parser throws an exception on error -- each
implementation of yyerror just calls error.
So, this patch removes la_error and makes all the yyerror functions
static. This is handy primarily because it makes it simpler to make
the expression parsers pure.
Tested by the buildbot.
gdb/ChangeLog
2018-06-18 Tom Tromey <tom@tromey.com>
* rust-lang.h (rust_yyerror): Don't declare.
* rust-lang.c (rust_language_defn): Update.
* rust-exp.y (yyerror): Now static.
* parse.c (parse_exp_in_context_1): Update.
* p-lang.h (p_yyerror): Don't declare.
* p-lang.c (p_language_defn): Update.
* p-exp.y (yyerror): Now static.
* opencl-lang.c (opencl_language_defn): Update.
* objc-lang.c (objc_language_defn): Update.
* m2-lang.h (m2_yyerror): Don't declare.
* m2-lang.c (m2_language_defn): Update.
* m2-exp.y (yyerror): Now static.
* language.h (struct language_defn) <la_error>: Remove.
* language.c (unk_lang_error): Remove.
(unknown_language_defn, auto_language_defn): Remove.
* go-lang.h (go_yyerror): Don't declare.
* go-lang.c (go_language_defn): Update.
* go-exp.y (yyerror): Now static.
* f-lang.h (f_yyerror): Don't declare.
* f-lang.c (f_language_defn): Update.
* f-exp.y (yyerror): Now static.
* d-lang.h (d_yyerror): Don't declare.
* d-lang.c (d_language_defn): Update.
* d-exp.y (yyerror): Now static.
* c-lang.h (c_yyerror): Don't declare.
* c-lang.c (c_language_defn, cplus_language_defn)
(asm_language_defn, minimal_language_defn): Update.
* c-exp.y (yyerror): Now static.
* ada-lang.h (ada_yyerror): Don't declare.
* ada-lang.c (ada_language_defn): Update.
* ada-exp.y (yyerror): Now static.
Fix a null dereference when casting a value to a unit type.
ChangeLog
2018-04-28 Dan Robertson <danlrobertson89@gmail.com>
PR rust/23124
* gdb/rust-exp.y (convert_params_to_types): Ensure that the params
pointer is not null before dereferencing it.
testsuite/ChangeLog
2018-04-28 Dan Robertson <danlrobertson89@gmail.com>
PR rust/23124
* gdb.rust/expr.exp: Test that the unit type is correctly parsed
when casting.
This is version 2 of the patch to add inclusive range support for
Rust. I believe it addresses all review comments.
Rust recently stabilized the inclusive range feature:
https://github.com/rust-lang/rust/issues/28237
An inclusive range is an expression like "..= EXPR" or "EXPR ..=
EXPR". It is like an ordinary range, except the upper bound is
inclusive, not exclusive.
This patch adds support for this feature to gdb.
Regression tested on x86-64 Fedora 27.
2018-04-27 Tom Tromey <tom@tromey.com>
PR rust/22545:
* rust-lang.c (rust_inclusive_range_type_p): New function.
(rust_range): Handle inclusive ranges.
(rust_compute_range): Likewise.
* rust-exp.y (struct rust_op) <inclusive>: New field.
(DOTDOTEQ): New constant.
(range_expr): Add "..=" productions.
(operator_tokens): Add "..=" token.
(ast_range): Add "inclusive" parameter.
(convert_ast_to_expression) <case OP_RANGE>: Handle inclusive
ranges.
* parse.c (operator_length_standard) <case OP_RANGE>: Handle new
bounds values.
* expression.h (enum range_type) <NONE_BOUND_DEFAULT_EXCLUSIVE,
LOW_BOUND_DEFAULT_EXCLUSIVE>: New constants.
Update comments.
* expprint.c (print_subexp_standard): Handle new bounds values.
(dump_subexp_body_standard): Likewise.
2018-04-27 Tom Tromey <tom@tromey.com>
PR rust/22545:
* gdb.rust/simple.exp: Add inclusive range tests.
In Rust one can initialize a struct member from an identically-named
local variable by simply mentioning the member name in the
initializer, like:
let x = 0;
let y = Struct { x };
This initializes "Struct::x" from "x".
This patch adds this form of initializer to the Rust expression parser
and adds a test.
Tested on x86-64 Fedora 26 using rustc 1.23.
2018-03-19 Tom Tromey <tom@tromey.com>
* rust-exp.y (struct_expr_tail, struct_expr_list): Add plain
"IDENT" production.
2018-03-19 Tom Tromey <tom@tromey.com>
* gdb.rust/simple.rs (main): Add local variables field1, field2,
y0.
* gdb.rust/simple.exp: Test bare identifier form of struct
initializer.
I noticed a few formatting buglets in rust-exp.y: A couple of lines
were too long, and a couple of parser rules did not follow the same
formatting as the rest of the code.
I'm checking this in as obvious. Tested by rebuilding.
2018-03-06 Tom Tromey <tom@tromey.com>
* rust-exp.y: Formatting fixes.
This commit is preparation for a later change, at this point there
should be no user visible change.
We currently maintain a global innermost_block which tracks the most
inner block encountered when parsing an expression.
This commit wraps the innermost_block into a new class, and switches all
direct accesses to the variable to use the class API.
gdb/ChangeLog:
* ada-exp.y (write_var_from_sym): Switch to innermost_block API.
* ada-lang.c (resolve_subexp): Likewise.
* breakpoint.c (set_breakpoint_condition) Likewise.
(watch_command_1) Likewise.
* c-exp.y (variable): Likewise.
* d-exp.y (PrimaryExpression): Likewise.
* f-exp.y (variable): Likewise.
* go-exp.y (variable): Likewise.
* m2-exp.y (variable): Likewise.
* objfiles.c (objfile::~objfile): Likewise.
* p-exp.y (variable): Likewise.
* parse.c (innermost_block): Change type.
* parser-defs.h (class innermost_block_tracker): New.
(innermost_block): Change to innermost_block_tracker.
* printcmd.c (display_command): Switch to innermost_block API.
(do_one_display): Likewise.
* rust-exp.y (do_one_display): Likewise.
* symfile.c (clear_symtab_users): Likewise.
* varobj.c (varobj_create): Switch to innermost_block API, replace
use of innermost_block with block stored on varobj object.
This mildly C++-ifies parser_state and stap_parse_info -- just enough
to remove some cleanups.
This version includes the changes implemented by Simon.
Regression tested by the buildbot.
gdb/ChangeLog
2017-12-30 Tom Tromey <tom@tromey.com>
Simon Marchi <simon.marchi@ericsson.com>
* stap-probe.h (struct stap_parse_info): Add constructor,
destructor.
* stap-probe.c (stap_parse_argument): Update.
* rust-exp.y (rust_lex_tests): Update.
* parser-defs.h (struct parser_state): Add constructor,
destructor, release method.
<expout>: Change type to expression_up.
(null_post_parser): Change type.
(initialize_expout, reallocate_expout): Remove.
* parse.c (parser_state::parser_state): Rename from
initialize_expout.
(parser_state::release): Rename from reallocate_expout.
(write_exp_elt, parse_exp_in_context_1, increase_expout_size):
Update.
(null_post_parser): Change type of "exp".
* dtrace-probe.c (dtrace_probe::build_arg_exprs): Update.
* ada-lang.c (resolve, resolve_subexp)
(replace_operator_with_call): Change type of "expp".
* language.h (struct language_defn) <la_post_parser>: Change type
of "expp".
When parsing floating-point literals, the language parsers currently
use parse_float or some equivalent routine to parse the input string
into a DOUBLEST, which is then stored within a OP_DOUBLE expression
node. When evaluating the expression, the OP_DOUBLE is finally
converted into a value in target format.
On the other hand, *decimal* floating-point literals are parsed
directly into target format and stored that way in a OP_DECFLOAT
expression node. In order to eliminate the DOUBLEST, this patch
therefore unifies the handling of binary and decimal floating-
point literals and stores them both in target format within a
new OP_FLOAT expression node, replacing both OP_DOUBLE and
OP_DECFLOAT.
In order to store literals in target format, the parse_float
routine needs to know the type of the literal. All parsers
therefore need to be changed to determine the appropriate type
(e.g. by detecting suffixes) *before* calling parse_float,
instead of after it as today. However, this change is mostly
straightforward -- again, this is already done for decimal FP
today.
The core of the literal parsing is moved into a new routine
floatformat_from_string, mirroring floatformat_to_string.
The parse_float routine now calls either floatformat_from_string
or decimal_from_sting, allowing it to handle any type of FP
literal.
All language parsers need to be updated. Some notes on
specific changes to the various languages:
- C: Decimal FP is now handled in parse_float, and no longer
needs to be handled specially.
- D: Straightforward.
- Fortran: Still used a hard-coded "atof", also replaced by
parse_float now. Continues to always use builtin_real_s8
as the type of literal, even though this is probably wrong.
- Go: This used to handle "f" and "l" suffixes, even though
the Go language actually doesn't support those. I kept this
support for now -- maybe revisit later. Note the the GDB
test suite for some reason actually *verifies* that GDB supports
those unsupported suffixes ...
- Pascal: Likewise -- this handles suffixes that are not
supported in the language standard.
- Modula-2: Like Fortran, used to use "atof".
- Rust: Mostly straightforward, except for a unit-testing hitch.
The code use to set a special "unit_testing" flag which would
cause "rust_type" to always return NULL. This makes it not
possible to encode a literal into target format (which type?).
The reason for this flag appears to have been that during
unit testing, there is no "rust_parser" context set up, which
means no "gdbarch" is available to use its types. To fix this,
I removed the unit_testing flag, and instead simply just set up
a dummy rust_parser context during unit testing.
- Ada: This used to check sizeof (DOUBLEST) to determine which
type to use for floating-point literal. This seems questionable
to begin with (since DOUBLEST is quite unrelated to target formats),
and in any case we need to get rid of DOUBLEST. I'm now simply
always using the largest type (builtin_long_double).
gdb/ChangeLog:
2017-10-25 Ulrich Weigand <uweigand@de.ibm.com>
* doublest.c (floatformat_from_string): New function.
* doublest.h (floatformat_from_string): Add prototype.
* std-operator.def (OP_DOUBLE, OP_DECFLOAT): Remove, replace by ...
(OP_FLOAT): ... this.
* expression.h: Do not include "doublest.h".
(union exp_element): Replace doubleconst and decfloatconst by
new element floatconst.
* ada-lang.c (resolve_subexp): Handle OP_FLOAT instead of OP_DOUBLE.
(ada_evaluate_subexp): Likewise.
* eval.c (evaluate_subexp_standard): Handle OP_FLOAT instead of
OP_DOUBLE and OP_DECFLOAT.
* expprint.c (print_subexp_standard): Likewise.
(dump_subexp_body_standard): Likewise.
* breakpoint.c (watchpoint_exp_is_const): Likewise.
* parse.c: Include "dfp.h".
(write_exp_elt_dblcst, write_exp_elt_decfloatcst): Remove.
(write_exp_elt_floatcst): New function.
(operator_length_standard): Handle OP_FLOAT instead of OP_DOUBLE
and OP_DECFLOAT.
(operator_check_standard): Likewise.
(parse_float): Do not accept suffix. Take type as input. Return bool.
Return target format buffer instead of host DOUBLEST.
Use floatformat_from_string and decimal_from_string to parse
either binary or decimal floating-point types.
(parse_c_float): Remove.
* parser-defs.h: Do not include "doublest.h".
(write_exp_elt_dblcst, write_exp_elt_decfloatcst): Remove.
(write_exp_elt_floatcst): Add prototype.
(parse_float): Update prototype.
(parse_c_float): Remove.
* c-exp.y: Do not include "dfp.h".
(typed_val_float): Use byte buffer instead of DOUBLEST.
(typed_val_decfloat): Remove.
(DECFLOAT): Remove.
(FLOAT): Use OP_FLOAT and write_exp_elt_floatcst.
(parse_number): Update to new parse_float interface.
Parse suffixes and determine type before calling parse_float.
Handle decimal and binary FP types the same way.
* d-exp.y (typed_val_float): Use byte buffer instead of DOUBLEST.
(FLOAT_LITERAL): Use OP_FLOAT and write_exp_elt_floatcst.
(parse_number): Update to new parse_float interface.
Parse suffixes and determine type before calling parse_float.
* f-exp.y: Replace dval by typed_val_float.
(FLOAT): Use OP_FLOAT and write_exp_elt_floatcst.
(parse_number): Use parse_float instead of atof.
* go-exp.y (typed_val_float): Use byte buffer instead of DOUBLEST.
(parse_go_float): Remove.
(FLOAT): Use OP_FLOAT and write_exp_elt_floatcst.
(parse_number): Call parse_float instead of parse_go_float.
Parse suffixes and determine type before calling parse_float.
* p-exp.y (typed_val_float): Use byte buffer instead of DOUBLEST.
(FLOAT): Use OP_FLOAT and write_exp_elt_floatcst.
(parse_number): Update to new parse_float interface.
Parse suffixes and determine type before calling parse_float.
* m2-exp.y: Replace dval by byte buffer val.
(FLOAT): Use OP_FLOAT and write_exp_elt_floatcst.
(parse_number): Call parse_float instead of atof.
* rust-exp.y (typed_val_float): Use byte buffer instead of DOUBLEST.
(lex_number): Call parse_float instead of strtod.
(ast_dliteral): Use OP_FLOAT instead of OP_DOUBLE.
(convert_ast_to_expression): Handle OP_FLOAT instead of OP_DOUBLE.
Use write_exp_elt_floatcst.
(unit_testing): Remove static variable.
(rust_type): Do not check unit_testing.
(rust_lex_tests): Do not set uint_testing. Set up dummy rust_parser.
* ada-exp.y (type_float, type_double): Remove.
(typed_val_float): Use byte buffer instead of DOUBLEST.
(FLOAT): Use OP_FLOAT and write_exp_elt_floatcst.
* ada-lex.l (processReal): Use parse_float instead of sscanf.
With the growing number of selftests, I think it would be useful to be
able to run only a subset of the tests. This patch associates a name to
each registered selftest. It then allows doing something like:
(gdb) maintenance selftest aarch64
Running self-tests.
Running selftest aarch64-analyze-prologue.
Running selftest aarch64-process-record.
Ran 2 unit tests, 0 failed
or with gdbserver:
./gdbserver --selftest=aarch64
In both cases, only the tests that contain "aarch64" in their name are
ran. To help validate that the tests you want to run were actually ran,
it also prints a message with the test name before running each test.
Right now, all the arch-dependent tests are registered as a single test
of the selftests. To be able to filter those too, I made them
"first-class citizen" selftests. The selftest type is an interface,
with different implementations for "simple selftests" and "arch
selftests". The run_tests function simply iterates on that an invokes
operator() on each test.
I changed the tests data structure from a vector to a map, because
- it allows iterating in a stable (alphabetical) order
- it allows to easily verify if a test with a given name has been
registered, to avoid duplicates
There's also a new command "maintenance info selftests" that lists the
registered selftests.
gdb/ChangeLog:
* common/selftest.h (selftest): New struct/interface.
(register_test): Add name parameter, add new overload.
(run_tests): Add filter parameter.
(for_each_selftest_ftype): New typedef.
(for_each_selftest): New declaration.
* common/selftest.c (tests): Change type to
map<string, unique_ptr<selftest>>.
(simple_selftest): New struct.
(register_test): New function.
(register_test): Add name parameter and use it.
(run_tests): Add filter parameter and use it. Add prints.
Adjust to vector -> map change.
* aarch64-tdep.c (_initialize_aarch64_tdep): Add names when
registering selftests.
* arm-tdep.c (_initialize_arm_tdep): Likewise.
* disasm-selftests.c (_initialize_disasm_selftests): Likewise.
* dwarf2-frame.c (_initialize_dwarf2_frame): Likewise.
* dwarf2loc.c (_initialize_dwarf2loc): Likewise.
* findvar.c (_initialize_findvar): Likewise.
* gdbarch-selftests.c (_initialize_gdbarch_selftests): Likewise.
* maint.c (maintenance_selftest): Update call to run_tests.
(maintenance_info_selftests): New function.
(_initialize_maint_cmds): Register "maintenance info selftests"
command. Update "maintenance selftest" doc.
* regcache.c (_initialize_regcache): Add names when registering
selftests.
* rust-exp.y (_initialize_rust_exp): Likewise.
* selftest-arch.c (gdbarch_selftest): New struct.
(gdbarch_tests): Remove.
(register_test_foreach_arch): Add name parameter. Call
register_test.
(tests_with_arch): Remove, move most content to
gdbarch_selftest::operator().
(_initialize_selftests_foreach_arch): Remove.
* selftest-arch.h (register_test_foreach_arch): Add name
parameter.
(run_tests_with_arch): New declaration.
* utils-selftests.c (_initialize_utils_selftests): Add names
when registering selftests.
* utils.c (_initialize_utils): Likewise.
* unittests/array-view-selftests.c
(_initialize_array_view_selftests): Likewise.
* unittests/environ-selftests.c (_initialize_environ_selftests):
Likewise.
* unittests/function-view-selftests.c
(_initialize_function_view_selftests): Likewise.
* unittests/offset-type-selftests.c
(_initialize_offset_type_selftests): Likewise.
* unittests/optional-selftests.c
(_initialize_optional_selftests): Likewise.
* unittests/scoped_restore-selftests.c
(_initialize_scoped_restore_selftests): Likewise.
* NEWS: Document "maintenance selftest" and "maint info
selftests".
gdb/gdbserver/ChangeLog:
* server.c (captured_main): Accept argument for --selftest.
Update run_tests call.
* linux-x86-tdesc-selftest.c (initialize_low_tdesc): Add names
when registering selftests.
gdb/doc/ChangeLog:
* gdb.texinfo (Maintenance Commands): Document filter parameter
of "maint selftest". Document "maint info selftests" command.
This renames a few functions -- skip_spaces_const,
skip_to_space_const, get_number_const, extract_arg_const -- to drop
the "_const" suffix and instead rely on overloading.
This makes future const fixes simpler by reducing the number of lines
that must be changed. I think it is also not any less clear, as all
these functions have the same interface as their non-const versions by
design. Furthermore there's an example of using an overload in-tree
already, namely check_for_argument.
This patch was largely created using some perl one-liners; then a few
fixes were applied by hand.
ChangeLog
2017-09-11 Tom Tromey <tom@tromey.com>
* common/common-utils.h (skip_to_space): Remove macro, redeclare
as function.
(skip_to_space): Rename from skip_to_space_const.
* common/common-utils.c (skip_to_space): New function.
(skip_to_space): Rename from skip_to_space_const.
* cli/cli-utils.h (get_number): Rename from get_number_const.
(extract_arg): Rename from extract_arg_const.
* cli/cli-utils.c (get_number): Rename from get_number_const.
(extract_arg): Rename from extract_arg_const.
(number_or_range_parser::get_number): Use ::get_number.
* aarch64-linux-tdep.c, ada-lang.c, arm-linux-tdep.c, ax-gdb.c,
break-catch-throw.c, breakpoint.c, cli/cli-cmds.c, cli/cli-dump.c,
cli/cli-script.c, cli/cli-setshow.c, compile/compile.c,
completer.c, demangle.c, disasm.c, findcmd.c, linespec.c,
linux-tdep.c, linux-thread-db.c, location.c, mi/mi-parse.c,
minsyms.c, nat/linux-procfs.c, printcmd.c, probe.c,
python/py-breakpoint.c, record.c, rust-exp.y, serial.c, stack.c,
stap-probe.c, tid-parse.c, tracepoint.c: Update all callers.
This removes the few remaining cleanups in the Rust language code.
The main difficulty here was that the earlier code allocated VEC heads
on an obstack. The new code instead introduces an object that
allocates and maintains the storage for whatever vectors are needed
during the parse.
Regression tested on the buildbot.
ChangeLog
2017-08-05 Tom Tromey <tom@tromey.com>
* rust-exp.y (rust_op_ptr, set_field): Remove typedefs.
(rust_op_vector, rust_set_vector): New typedefs.
(current_parser): New global.
(work_obstack): Change to pointer type. Update all users.
(rust_ast, pstate): Remove globals.
(struct rust_parser): New.
(%union) <params, field_inits>: Change type.
(start, tuple_expr, unit_expr, struct_expr_list, literal)
(field_expr, expr_list, maybe_expr_list, type_list): Update.
(ast_call_ish, ast_path, ast_function_type, ast_tuple_type)
(convert_params_to_types, convert_params_to_expression): Change
type of "params".
(ast_string): Change type of "fields".
(rust_parse): Make a rust_parser. Remove cleanups.
(rust_lex_tests): Make and install an auto_obstack.
PR rust/21764 notes that "sizeof" does not work correctly for all types
in Rust. The bug turns out to be an error in the conversion of the AST
to gdb expressions. This patch fixes the bug and also avoids generating
incorrect expressions in another case.
Tested on the buildbot. I'm checking this in.
2017-07-14 Tom Tromey <tom@tromey.com>
PR rust/21764:
* rust-exp.y (convert_ast_to_expression): Add "want_type"
parameter.
<UNOP_SIZEOF>: Split into separate case.
<UNOP_VAR_VALUE>: Handle want_type. Add error case.
2017-07-14 Tom Tromey <tom@tromey.com>
PR rust/21764:
* gdb.rust/simple.exp: Add tests.
PR rust/21763 points out that gdb.lookup_typename does not work properly
for (some) Rust types. I tracked this down to a missing case in
symbol_matches_domain.
Tested by the buildbot.
2017-07-14 Tom Tromey <tom@tromey.com>
PR rust/21763:
* symtab.c (symbol_matches_domain): Add language_rust to special
case.
* rust-exp.y (convert_ast_to_expression) <OP_VAR_VALUE>: Don't
treat LOC_TYPEDEF symbols as variables.
2017-07-14 Tom Tromey <tom@tromey.com>
* gdb.rust/simple.exp: Add regression test for PR rust/21763.
This commit eliminates make_cleanup_obstack_free, replacing it with a
new auto_obstack type that inherits obstack to add cdtors.
These changes in the parsers may not be obvious:
- obstack_init (&name_obstack);
- make_cleanup_obstack_free (&name_obstack);
+ name_obstack.clear ();
Here, the 'name_obstack' variable is a global. The change means that
the obstack's contents from a previous parse will stay around until
the next parsing starts. I.e., memory won't be reclaimed until then.
I don't think that's a problem, these objects don't really grow much
at all.
The other option I tried was to add a separate type that is like
auto_obstack but manages an external obstack, just for those cases. I
like the current approach better as that other approach adds more
boilerplate and yet another type to learn.
gdb/ChangeLog:
2017-06-27 Pedro Alves <palves@redhat.com>
* c-exp.y (name_obstack): Now an auto_obstack.
(yylex): Use auto_obstack::clear.
(c_parse): Use auto_obstack::clear instead of reinitializing and
freeing the obstack.
* c-lang.c (evaluate_subexp_c): Use auto_obstack.
* d-exp.y (name_obstack): Now an auto_obstack.
(yylex): Use auto_obstack::clear.
(d_parse): Use auto_obstack::clear instead of reinitializing and
freeing the obstack.
* dwarf2loc.c (fetch_const_value_from_synthetic_pointer): Use
auto_obstack.
* dwarf2read.c (create_addrmap_from_index)
(dwarf2_build_psymtabs_hard)
(update_enumeration_type_from_children): Likewise.
* gdb_obstack.h (auto_obstack): New type.
* go-exp.y (name_obstack): Now an auto_obstack.
(build_packaged_name): Use auto_obstack::clear.
(go_parse): Use auto_obstack::clear instead of reinitializing and
freeing the obstack.
* linux-tdep.c (linux_make_mappings_corefile_notes): Use
auto_obstack.
* printcmd.c (printf_wide_c_string, ui_printf): Use auto_obstack.
* rust-exp.y (work_obstack): Now an auto_obstack.
(rust_parse, rust_lex_tests): Use auto_obstack::clear instead of
reinitializing and freeing the obstack.
* utils.c (do_obstack_free, make_cleanup_obstack_free): Delete.
(host_char_to_target): Use auto_obstack.
* utils.h (make_cleanup_obstack_free): Delete declaration.
* valprint.c (generic_emit_char, generic_printstr): Use
auto_obstack.
This changes various functions in the Rust code to use a bool rather
than an int when a boolean is intended.
2017-02-02 Tom Tromey <tom@tromey.com>
* rust-exp.y (ends_raw_string, space_then_number)
(rust_identifier_start_p): Return bool.
* rust-lang.c (rust_tuple_type_p, rust_underscore_fields)
(rust_tuple_struct_type_p, rust_tuple_variant_type_p)
(rust_slice_type_p, rust_range_type_p, rust_u8_type_p)
(rust_chartype_p): Return bool.
(val_print_struct, rust_print_struct_def, rust_print_type):
Update.
* rust-lang.h (rust_tuple_type_p, rust_tuple_struct_type_p):
Return bool.
This changes a couple of spots in the Rust support to use std::string.
In one spot this removes some manual memory management; in the other
spot this allows the removal of a call to xstrdup.
2017-02-02 Tom Tromey <tom@tromey.com>
* rust-lang.h (rust_crate_for_block): Update.
* rust-lang.c (rust_crate_for_block): Return std::string.
(rust_get_disr_info): Use std:;string, not
gdb::unique_xmalloc_ptr.
* rust-exp.y (crate_name): Update.
This applies the second part of GDB's End of Year Procedure, which
updates the copyright year range in all of GDB's files.
gdb/ChangeLog:
Update copyright year range in all GDB files.
This removes some cleanups from the rust code, in favor of C++ objects
with destructors.
2016-11-12 Tom Tromey <tom@tromey.com>
* rust-exp.y (super_name): Use std::vector.
(lex_number): Use std::string.
(convert_params_to_types): Return std::vector.
(convert_ast_to_type, convert_name): Update.
* rust-lang.c (rust_get_disr_info): Use unique_xmalloc_ptr.
This replaces most of the remaining ui_file_xstrdup calls with
ui_file_as_string calls. Whenever a call was replaced, that led to a
cascade of other necessary adjustments throughout, to make the code
use std::string instead of raw pointers. And then whenever I added a
std::string as member of a struct, I needed to adjust
allocation/destruction of said struct to use new/delete instead of
xmalloc/xfree.
The stopping point was once gdb built again. These doesn't seem to be
a way to reasonably split this out further.
Maybe-not-obvious changes:
- demangle_for_lookup returns a cleanup today. To get rid of that,
and avoid unnecessary string dupping/copying, this introduces a
demangle_result_storage type that the caller instantiates and
passes to demangle_for_lookup.
- Many methods returned a "char *" to indicate that the caller owns
the memory and must free it. Those are switched to return a
std::string instead. Methods that return a "view" into some
internal string return a "const char *" instead. I.e., we only
copy/allocate when necessary.
gdb/ChangeLog:
2016-11-08 Pedro Alves <palves@redhat.com>
* ada-lang.c (ada_name_for_lookup, type_as_string): Use and return
std::string.
(type_as_string_and_cleanup): Delete.
(ada_lookup_struct_elt_type): Use type_as_string.
* ada-lang.h (ada_name_for_lookup): Now returns std::string.
* ada-varobj.c (ada_varobj_scalar_image): Return a std::string.
(ada_varobj_describe_child): Make 'child_name' and
'child_path_expr' parameters std::string pointers.
(ada_varobj_describe_struct_child, ada_varobj_describe_ptr_child):
Likewise, and use string_printf.
(ada_varobj_describe_simple_array_child)
(ada_varobj_describe_child): Likewise.
(ada_varobj_get_name_of_child, ada_varobj_get_path_expr_of_child)
(ada_varobj_get_value_image)
(ada_varobj_get_value_of_array_variable)
(ada_varobj_get_value_of_variable, ada_name_of_variable)
(ada_name_of_child, ada_path_expr_of_child)
(ada_value_of_variable): Now returns std::string. Use
string_printf.
(ada_value_of_child): Adjust.
* break-catch-throw.c (check_status_exception_catchpoint): Adjust
to use std::string.
* breakpoint.c (watch_command_1): Adjust to use std::string.
* c-lang.c (c_get_string): Adjust to use std::string.
* c-typeprint.c (print_name_maybe_canonical): Use std::string.
* c-varobj.c (varobj_is_anonymous_child): Use ==/!= std::string
operators.
(c_name_of_variable): Now returns a std::string.
(c_describe_child): The 'cname' and 'cfull_expression' output
parameters are now std::string pointers. Adjust.
(c_name_of_child, c_path_expr_of_child, c_value_of_variable)
(cplus_number_of_children): Adjust to use std::string and
string_printf.
(cplus_name_of_variable): Now returns a std::string.
(cplus_describe_child): The 'cname' and 'cfull_expression' output
parameters are now std::string pointers. Adjust.
(cplus_name_of_child, cplus_path_expr_of_child)
(cplus_value_of_variable): Now returns a std::string.
* cp-abi.c (cplus_typename_from_type_info): Return std::string.
* cp-abi.h (cplus_typename_from_type_info): Return std::string.
(struct cp_abi_ops) <get_typename_from_type_info>: Return
std::string.
* cp-support.c (inspect_type): Use std::string.
(cp_canonicalize_string_full, cp_canonicalize_string_no_typedefs)
(cp_canonicalize_string): Return std::string and adjust.
* cp-support.h (cp_canonicalize_string)
(cp_canonicalize_string_no_typedefs, cp_canonicalize_string_full):
Return std::string.
* dbxread.c (read_dbx_symtab): Use std::string.
* dwarf2read.c (dwarf2_canonicalize_name): Adjust to use std::string.
* gdbcmd.h (lookup_struct_elt_type): Adjust to use std::string.
* gnu-v3-abi.c (gnuv3_get_typeid): Use std::string.
(gnuv3_get_typename_from_type_info): Return a std::string and
adjust.
(gnuv3_get_type_from_type_info): Adjust to use std::string.
* guile/guile.c (gdbscm_execute_gdb_command): Adjust to use
std::string.
* infcmd.c (print_return_value_1): Adjust to use std::string.
* linespec.c (find_linespec_symbols): Adjust to
demangle_for_lookup API change. Use std::string.
* mi/mi-cmd-var.c (print_varobj, mi_cmd_var_set_format)
(mi_cmd_var_info_type, mi_cmd_var_info_path_expression)
(mi_cmd_var_info_expression, mi_cmd_var_evaluate_expression)
(mi_cmd_var_assign, varobj_update_one): Adjust to use std::string.
* minsyms.c (lookup_minimal_symbol): Use std::string.
* python/py-varobj.c (py_varobj_iter_next): Use new instead of
XNEW. vitem->name is a std::string now, adjust.
* rust-exp.y (convert_ast_to_type, convert_name): Adjust to use
std::string.
* stabsread.c (define_symbol): Adjust to use std::string.
* symtab.c (demangle_for_lookup): Now returns 'const char *'. Add
a demangle_result_storage parameter. Use it for storage.
(lookup_symbol_in_language)
(lookup_symbol_in_objfile_from_linkage_name): Adjust to new
demangle_for_lookup API.
* symtab.h (struct demangle_result_storage): New type.
(demangle_for_lookup): Now returns 'const char *'. Add a
demangle_result_storage parameter.
* typeprint.c (type_to_string): Return std::string and use
ui_file_as_string.
* value.h (type_to_string): Change return type to std::string.
* varobj-iter.h (struct varobj_item) <name>: Now a std::string.
(varobj_iter_delete): Use delete instead of xfree.
* varobj.c (create_child): Return std::string instead of char * in
output parameter.
(name_of_variable, name_of_child, my_value_of_variable): Return
std::string instead of char *.
(varobj_create, varobj_get_handle): Constify 'objname' parameter.
Adjust to std::string fields.
(varobj_get_objname): Return a const char * instead of a char *.
(varobj_get_expression): Return a std::string.
(varobj_list_children): Adjust to use std::string.
(varobj_get_type): Return a std::string.
(varobj_get_path_expr): Return a const char * instead of a char *.
Adjust to std::string fields.
(varobj_get_formatted_value, varobj_get_value): Return a
std::string.
(varobj_set_value): Change type of 'expression' parameter to
std::string. Use std::string.
(install_new_value): Use std::string.
(delete_variable_1): Adjust to use std::string.
(create_child): Change the 'name' parameter to a std::string
reference. Swap it into the new item's name.
(create_child_with_value): Swap item's name into the new child's
name. Use string_printf.
(new_variable): Use new instead of XNEW.
(free_variable): Don't xfree fields that are now std::string.
(name_of_variable, name_of_child): Now returns std::string.
(value_of_root): Adjust to use std::string.
(my_value_of_variable, varobj_value_get_print_value): Return
and use std::string.
(varobj_value_get_print_value): Adjust to use ui_file_as_string
and std::string.
* varobj.h (struct varobj) <name, path_expr, obj_name,
print_value>: Now std::string's.
<name_of_variable, name_of_child, path_expr_of_child,
value_of_variable>: Return std::string.
(varobj_create, varobj_get_handle): Constify 'objname' parameter.
(varobj_get_objname): Return a const char * instead of a char *.
(varobj_get_expression, varobj_get_type): Return a std::string.
(varobj_get_path_expr): Return a const char * instead of a char *.
(varobj_get_formatted_value, varobj_get_value): Return a
std::string.
(varobj_set_value): Constify 'expression' parameter.
(varobj_value_get_print_value): Return a std::string.
I learned recently that empty struct expressions, like "X{}", have been
promoted from experimental to stable in Rust. This patch changes the
Rust expression parser to allow this case.
New test case included.
Built and regtested on x86-64 Fedora 23, using Rust 1.11 beta.
2016-07-21 Tom Tromey <tom@tromey.com>
* rust-lang.c (rust_tuple_struct_type_p): Return false for empty
structs.
* rust-exp.y (struct_expr_list): Allow empty elements.
2016-07-21 Tom Tromey <tom@tromey.com>
* gdb.rust/simple.rs (main): Use empty struct expression.
* gdb.rust/simple.exp: Add tests for empty struct expression.
Simon Marchi
Joel Brobecker
Simon Marchi
Andrew Burgess
Tom Tromey
Tom Tromey
Dan Robertson
Simon Marchi
Ulrich Weigand
John Baldwin
Yao Qi
Pedro Alves
Manish Goregaokar