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The previous patch left GDB with an inconsistency. While with normal
expression evaluation the "unknown return type" error shows the name
of the function that misses debug info:
(gdb) p getenv ("PATH")
'getenv' has unknown return type; cast the call to its declared return type
^^^^^^
which can by handy in more complicated expressions, "ptype" does not:
(gdb) ptype getenv ("PATH")
function has unknown return type; cast the call to its declared return type
^^^^^^^^
This commit is a step toward fixing it.
The problem is that while evaluating the expression above, we have no
reference to the minimal symbol where we could extract the name from.
This is because the resulting expression tree has no reference to the
minsym at all. During parsing, the type and address of the minsym are
extracted and an UNOP_MEMVAL / UNOP_MEMVAL_TLS operator is generated
(see write_exp_elt_msym). With "set debug expression", here's what
you see:
0 OP_FUNCALL Number of args: 0
3 UNOP_MEMVAL Type @0x565334a51930 (<text variable, no debug info>)
6 OP_LONG Type @0x565334a51c60 (__CORE_ADDR), value 140737345035648 (0x7ffff7751d80)
The "print" case finds the function name, because
call_function_by_hand looks up the function by address again.
However, for "ptype", we don't reach that code, because obviously we
don't really call the function.
Unlike minsym references, references to variables with debug info have
a pointer to the variable's symbol in the expression tree, with
OP_VAR_VALUE:
(gdb) ptype main()
...
0 OP_FUNCALL Number of args: 0
3 OP_VAR_VALUE Block @0x0, symbol @0x559bbbd9b358 (main(int, char**))
...
so I don't see why do minsyms need to be different. So to prepare for
fixing the missing function name issue, this commit adds a new
OP_VAR_MSYM_VALUE operator that mimics OP_VAR_VALUE, except that it's
for minsyms instead of debug symbols. For infcalls, we now get
expressions like these:
0 OP_FUNCALL Number of args: 0
3 OP_VAR_MSYM_VALUE Objfile @0x1e41bf0, msymbol @0x7fffe599b000 (getenv)
In the following patch, we'll make OP_FUNCALL extract the function
name from the symbol stored in OP_VAR_VALUE/OP_VAR_MSYM_VALUE.
OP_VAR_MSYM_VALUE will be used more in a later patch in the series
too.
gdb/ChangeLog:
2017-09-04 Pedro Alves <palves@redhat.com>
* ada-lang.c (resolve_subexp): Handle OP_VAR_MSYM_VALUE.
* ax-gdb.c (gen_msym_var_ref): New function.
(gen_expr): Handle OP_VAR_MSYM_VALUE.
* eval.c (evaluate_var_msym_value): New function.
* eval.c (evaluate_subexp_standard): Handle OP_VAR_MSYM_VALUE.
<OP_FUNCALL>: Extract function name from symbol/minsym and pass it
to call_function_by_hand.
* expprint.c (print_subexp_standard, dump_subexp_body_standard):
Handle OP_VAR_MSYM_VALUE.
(union exp_element) <msymbol>: New field.
* minsyms.h (struct type): Forward declare.
(find_minsym_type_and_address): Declare.
* parse.c (write_exp_elt_msym): New function.
(write_exp_msymbol): Delete, refactored as ...
(find_minsym_type_and_address): ... this new function.
(write_exp_msymbol): Reimplement using OP_VAR_MSYM_VALUE.
(operator_length_standard, operator_check_standard): Handle
OP_VAR_MSYM_VALUE.
* std-operator.def (OP_VAR_MSYM_VALUE): New.
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The fact that GDB defaults to assuming that functions return int, when
it has no debug info for the function has been a recurring source of
user confusion. Recently this came up on the errno pretty printer
discussions. Shortly after, it came up again on IRC, with someone
wondering why does getenv() in GDB return a negative int:
(gdb) p getenv("PATH")
$1 = -6185
This question (with s/getenv/random-other-C-runtime-function) is a FAQ
on IRC.
The reason for the above is:
(gdb) p getenv
$2 = {<text variable, no debug info>} 0x7ffff7751d80 <getenv>
(gdb) ptype getenv
type = int ()
... which means that GDB truncated the 64-bit pointer that is actually
returned from getent to 32-bit, and then sign-extended it:
(gdb) p /x -6185
$6 = 0xffffe7d7
The workaround is to cast the function to the right type, like:
(gdb) p ((char *(*) (const char *)) getenv) ("PATH")
$3 = 0x7fffffffe7d7 "/usr/local/bin:/"...
IMO, we should do better than this.
I see the "assume-int" issue the same way I see printing bogus values
for optimized-out variables instead of "<optimized out>" -- I'd much
rather that the debugger tells me "I don't know" and tells me how to
fix it than showing me bogus misleading results, making me go around
tilting at windmills.
If GDB prints a signed integer when you're expecting a pointer or
aggregate, you at least have some sense that something is off, but
consider the case of the function actually returning a 64-bit integer.
For example, compile this without debug info:
unsigned long long
function ()
{
return 0x7fffffffffffffff;
}
Currently, with pristine GDB, you get:
(gdb) p function ()
$1 = -1 # incorrect
(gdb) p /x function ()
$2 = 0xffffffff # incorrect
maybe after spending a few hours debugging you suspect something is
wrong with that -1, and do:
(gdb) ptype function
type = int ()
and maybe, just maybe, you realize that the function actually returns
unsigned long long. And you try to fix it with:
(gdb) p /x (unsigned long long) function ()
$3 = 0xffffffffffffffff # incorrect
... which still produces the wrong result, because GDB simply applied
int to unsigned long long conversion. Meaning, it sign-extended the
integer that it extracted from the return of the function, to 64-bits.
and then maybe, after asking around on IRC, you realize you have to
cast the function to a pointer of the right type, and call that. It
won't be easy, but after a few missteps, you'll get to it:
..... (gdb) p /x ((unsigned long long(*) ()) function) ()
$666 = 0x7fffffffffffffff # finally! :-)
So to improve on the user experience, this patch does the following
(interrelated) things:
- makes no-debug-info functions no longer default to "int" as return
type. Instead, they're left with NULL/"<unknown return type>"
return type.
(gdb) ptype getenv
type = <unknown return type> ()
- makes calling a function with unknown return type an error.
(gdb) p getenv ("PATH")
'getenv' has unknown return type; cast the call to its declared return type
- and then to make it easier to call the function, makes it possible
to _only_ cast the return of the function to the right type,
instead of having to cast the function to a function pointer:
(gdb) p (char *) getenv ("PATH") # now Just Works
$3 = 0x7fffffffe7d7 "/usr/local/bin:/"...
(gdb) p ((char *(*) (const char *)) getenv) ("PATH") # continues working
$4 = 0x7fffffffe7d7 "/usr/local/bin:/"...
I.e., it makes GDB default the function's return type to the type
of the cast, and the function's parameters to the type of the
arguments passed down.
After this patch, here's what you'll get for the "unsigned long long"
example above:
(gdb) p function ()
'function' has unknown return type; cast the call to its declared return type
(gdb) p /x (unsigned long long) function ()
$4 = 0x7fffffffffffffff # correct!
Note that while with "print" GDB shows the name of the function that
has the problem:
(gdb) p getenv ("PATH")
'getenv' has unknown return type; cast the call to its declared return type
which can by handy in more complicated expressions, "ptype" does not:
(gdb) ptype getenv ("PATH")
function has unknown return type; cast the call to its declared return type
This will be fixed in the next patch.
gdb/ChangeLog:
2017-09-04 Pedro Alves <palves@redhat.com>
* ada-lang.c (ada_evaluate_subexp) <TYPE_CODE_FUNC>: Don't handle
TYPE_GNU_IFUNC specially here. Throw error if return type is
unknown.
* ada-typeprint.c (print_func_type): Handle functions with unknown
return type.
* c-typeprint.c (c_type_print_base): Handle functions and methods
with unknown return type.
* compile/compile-c-symbols.c (convert_symbol_bmsym)
<mst_text_gnu_ifunc>: Use nodebug_text_gnu_ifunc_symbol.
* compile/compile-c-types.c: Include "objfiles.h".
(convert_func): For functions with unknown return type, warn and
default to int.
* compile/compile-object-run.c (compile_object_run): Adjust call
to call_function_by_hand_dummy.
* elfread.c (elf_gnu_ifunc_resolve_addr): Adjust call to
call_function_by_hand.
* eval.c (evaluate_subexp_standard): Adjust calls to
call_function_by_hand. Handle functions and methods with unknown
return type. Pass expect_type to call_function_by_hand.
* f-typeprint.c (f_type_print_base): Handle functions with unknown
return type.
* gcore.c (call_target_sbrk): Adjust call to
call_function_by_hand.
* gdbtypes.c (objfile_type): Leave nodebug text symbol with NULL
return type instead of int. Make nodebug_text_gnu_ifunc_symbol be
an integer address type instead of nodebug.
* guile/scm-value.c (gdbscm_value_call): Adjust call to
call_function_by_hand.
* infcall.c (error_call_unknown_return_type): New function.
(call_function_by_hand): New "default_return_type" parameter.
Pass it down.
(call_function_by_hand_dummy): New "default_return_type"
parameter. Use it instead of defaulting to int. If there's no
default and the return type is unknown, throw an error. If
there's a default return type, and the called function has no
debug info, then assume the function is prototyped.
* infcall.h (call_function_by_hand, call_function_by_hand_dummy):
New "default_return_type" parameter.
(error_call_unknown_return_type): New declaration.
* linux-fork.c (call_lseek): Cast return type of lseek.
(inferior_call_waitpid, checkpoint_command): Adjust calls to
call_function_by_hand.
* linux-tdep.c (linux_infcall_mmap, linux_infcall_munmap): Adjust
calls to call_function_by_hand.
* m2-typeprint.c (m2_procedure): Handle functions with unknown
return type.
* objc-lang.c (lookup_objc_class, lookup_child_selector)
(value_nsstring, print_object_command): Adjust calls to
call_function_by_hand.
* p-typeprint.c (pascal_type_print_varspec_prefix): Handle
functions with unknown return type.
(pascal_type_print_func_varspec_suffix): New function.
(pascal_type_print_varspec_suffix) <TYPE_CODE_FUNC,
TYPE_CODE_METHOD>: Use it.
* python/py-value.c (valpy_call): Adjust call to
call_function_by_hand.
* rust-lang.c (rust_evaluate_funcall): Adjust call to
call_function_by_hand.
* valarith.c (value_x_binop, value_x_unop): Adjust calls to
call_function_by_hand.
* valops.c (value_allocate_space_in_inferior): Adjust call to
call_function_by_hand.
* typeprint.c (type_print_unknown_return_type): New function.
* typeprint.h (type_print_unknown_return_type): New declaration.
gdb/testsuite/ChangeLog:
2017-09-04 Pedro Alves <palves@redhat.com>
* gdb.base/break-main-file-remove-fail.exp (test_remove_bp): Cast
return type of munmap in infcall.
* gdb.base/break-probes.exp: Cast return type of foo in infcall.
* gdb.base/checkpoint.exp: Simplify using for loop. Cast return
type of ftell in infcall.
* gdb.base/dprintf-detach.exp (dprintf_detach_test): Cast return
type of getpid in infcall.
* gdb.base/infcall-exec.exp: Cast return type of execlp in
infcall.
* gdb.base/info-os.exp: Cast return type of getpid in infcall.
Bail on failure to extract the pid.
* gdb.base/nodebug.c: #include <stdint.h>.
(multf, multf_noproto, mult, mult_noproto, add8, add8_noproto):
New functions.
* gdb.base/nodebug.exp (test_call_promotion): New procedure.
Change expected output of print/whatis/ptype with functions with
no debug info. Test all supported languages. Call
test_call_promotion.
* gdb.compile/compile.exp: Adjust expected output to expect
warning.
* gdb.threads/siginfo-threads.exp: Likewise.
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(Ref: https://sourceware.org/ml/gdb/2017-06/msg00020.html)
Assuming int_t is a typedef to int:
typedef int int_t;
gdb currently loses this expression's typedef:
(gdb) p (int_t) 0
$1 = 0
(gdb) whatis $1
type = int
or:
(gdb) whatis (int_t) 0
type = int
or, to get "whatis" out of the way:
(gdb) maint print type (int_t) 0
...
name 'int'
code 0x8 (TYPE_CODE_INT)
...
This prevents a type printer for "int_t" kicking in, with e.g.:
(gdb) p (int_t) 0
From the manual, we can see that that "whatis (int_t) 0" command
invocation should have printed "type = int_t":
If @var{arg} is a variable or an expression, @code{whatis} prints its
literal type as it is used in the source code. If the type was
defined using a @code{typedef}, @code{whatis} will @emph{not} print
the data type underlying the @code{typedef}.
(...)
If @var{arg} is a type name that was defined using @code{typedef},
@code{whatis} @dfn{unrolls} only one level of that @code{typedef}.
That one-level stripping is currently done here, in
gdb/eval.c:evaluate_subexp_standard, handling OP_TYPE:
...
else if (noside == EVAL_AVOID_SIDE_EFFECTS)
{
struct type *type = exp->elts[pc + 1].type;
/* If this is a typedef, then find its immediate target. We
use check_typedef to resolve stubs, but we ignore its
result because we do not want to dig past all
typedefs. */
check_typedef (type);
if (TYPE_CODE (type) == TYPE_CODE_TYPEDEF)
type = TYPE_TARGET_TYPE (type);
return allocate_value (type);
}
However, this stripping is reachable in both:
#1 - (gdb) whatis (int_t)0 # ARG is an expression with a cast to
# typedef type.
#2 - (gdb) whatis int_t # ARG is a type name.
while only case #2 should strip the typedef. Removing that code from
evaluate_subexp_standard is part of the fix. Instead, we make the
"whatis" command implementation itself strip one level of typedefs
when the command argument is a type name.
We then run into another problem, also fixed by this commit:
value_cast always drops any typedefs of the destination type.
With all that fixed, "whatis (int_t) 0" now works as expected:
(gdb) whatis int_t
type = int
(gdb) whatis (int_t)0
type = int_t
value_cast has many different exit/convertion paths, for handling many
different kinds of casts/conversions, and most of them had to be
tweaked to construct the value of the right "to" type. The new tests
try to exercise most of it, by trying castin of many different
combinations of types. With:
$ make check TESTS="*/whatis-ptype*.exp */gnu_vector.exp */dfp-test.exp"
... due to combinatorial explosion, the testsuite results for the
tests above alone grow like:
- # of expected passes 246
+ # of expected passes 3811
You'll note that the tests exposed one GCC buglet, filed here:
Missing DW_AT_type in DW_TAG_typedef of "typedef of typedef of void"
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81267
gdb/ChangeLog:
2017-08-21 Pedro Alves <palves@redhat.com>
* eval.c (evaluate_subexp_standard) <OP_TYPE>: Don't dig past
typedefs.
* typeprint.c (whatis_exp): If handling "whatis", and expression
is OP_TYPE, strip one typedef level. Otherwise don't strip
typedefs here.
* valops.c (value_cast): Save "to" type before resolving
stubs/typedefs. Use that type as resulting value's type.
gdb/testsuite/ChangeLog:
2017-08-21 Pedro Alves <palves@redhat.com>
* gdb.base/dfp-test.c
(d32_t, d64_t, d128_t, d32_t2, d64_t2, d128_t2, v_d32_t, v_d64_t)
(v_d128_t, v_d32_t2, v_d64_t2, v_d128_t2): New.
* gdb.base/dfp-test.exp: Add whatis/ptype/cast tests.
* gdb.base/gnu_vector.exp: Add whatis/ptype/cast tests.
* gdb.base/whatis-ptype-typedefs.c: New.
* gdb.base/whatis-ptype-typedefs.exp: New.
* gdb.python/py-prettyprint.c (int_type, int_type2): New typedefs.
(an_int, an_int_type, an_int_type2): New globals.
* gdb.python/py-prettyprint.exp (run_lang_tests): Add tests
involving typedefs and cast expressions.
* gdb.python/py-prettyprint.py (class pp_int_typedef): New.
(lookup_typedefs_function): New.
(typedefs_pretty_printers_dict): New.
(top level): Register lookup_typedefs_function in
gdb.pretty_printers.
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In almost all contexts (except for overload resolution rules and expression
semantics), lvalue and rvalue references are equivalent. That means that in all
but these cases we can replace a TYPE_CODE_REF check to a TYPE_IS_REFERENCE
check and, for switch statements, add a case label for a rvalue reference type
next to a case label for an lvalue reference type. This patch does exactly
that.
gdb/ChangeLog
PR gdb/14441
* aarch64-tdep.c (aarch64_type_align)
(aarch64_extract_return_value, aarch64_store_return_value): Change
lvalue reference type checks to general reference type checks.
* amd64-tdep.c (amd64_classify): Likewise.
* amd64-windows-tdep.c (amd64_windows_passed_by_integer_register):
Likewise.
* arm-tdep.c (arm_type_align, arm_extract_return_value)
(arm_store_return_value): Likewise.
* ax-gdb.c (gen_fetch, gen_cast): Likewise.
* c-typeprint.c (c_print_type): Likewise.
* c-varobj.c (adjust_value_for_child_access, c_value_of_variable)
(cplus_number_of_children, cplus_describe_child): Likewise.
* compile/compile-c-symbols.c (generate_vla_size): Likewise.
* completer.c (expression_completer): Likewise.
* cp-support.c (make_symbol_overload_list_adl_namespace):
Likewise.
* darwin-nat-info.c (info_mach_region_command): Likewise.
* dwarf2loc.c (entry_data_value_coerce_ref)
(value_of_dwarf_reg_entry): Likewise.
* eval.c (ptrmath_type_p, evaluate_subexp_standard)
(evaluate_subexp_for_address, evaluate_subexp_for_sizeof):
Likewise.
* findvar.c (extract_typed_address, store_typed_address):
Likewise.
* gdbtypes.c (rank_one_type): Likewise.
* hppa-tdep.c (hppa64_integral_or_pointer_p): Likewise.
* infcall.c (value_arg_coerce): Likewise.
* language.c (pointer_type): Likewise.
* m32c-tdep.c (m32c_reg_arg_type, m32c_m16c_address_to_pointer):
Likewise.
* m88k-tdep.c (m88k_integral_or_pointer_p): Likewise.
* mn10300-tdep.c (mn10300_type_align): Likewise.
* msp430-tdep.c (msp430_push_dummy_call): Likewise.
* ppc-sysv-tdep.c (do_ppc_sysv_return_value)
(ppc64_sysv_abi_push_param, ppc64_sysv_abi_return_value):
Likewise.
* printcmd.c (print_formatted, x_command): Likewise.
* python/py-type.c (typy_get_composite, typy_template_argument):
Likewise.
* python/py-value.c (valpy_referenced_value)
(valpy_get_dynamic_type, value_has_field): Likewise.
* s390-linux-tdep.c (s390_function_arg_integer): Likewise.
* sparc-tdep.c (sparc_integral_or_pointer_p): Likewise.
* sparc64-tdep.c (sparc64_integral_or_pointer_p): Likewise.
* spu-tdep.c (spu_scalar_value_p): Likewise.
* symtab.c (lookup_symbol_aux): Likewise.
* typeprint.c (whatis_exp, print_type_scalar): Likewise.
* valarith.c (binop_types_user_defined_p, unop_user_defined_p):
Likewise.
* valops.c (value_cast_pointers, value_cast)
(value_reinterpret_cast, value_dynamic_cast, value_addr, typecmp)
(value_struct_elt, value_struct_elt_bitpos)
(value_find_oload_method_list, find_overload_match)
(value_rtti_indirect_type): Likewise.
* valprint.c (val_print_scalar_type_p, generic_val_print):
Likewise.
* value.c (value_actual_type, value_as_address, unpack_long)
(pack_long, pack_unsigned_long, coerce_ref_if_computed)
(coerce_ref): Likewise.
* varobj.c (varobj_get_value_type): Likewise.
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Parameterize lookup_reference_type() and make_reference_type() by the kind of
reference type we want to look up. Create two wrapper functions
lookup_{lvalue,rvalue}_reference_type() for lookup_reference_type() to simplify
the API. Change all callers to use the new API.
gdb/Changelog
PR gdb/14441
* dwarf2read.c (read_tag_reference_type): Use
lookup_lvalue_reference_type() instead of lookup_reference_type().
* eval.c (evaluate_subexp_standard): Likewise.
* f-exp.y: Likewise.
* gdbtypes.c (make_reference_type, lookup_reference_type):
Generalize with rvalue reference types.
(lookup_lvalue_reference_type, lookup_rvalue_reference_type): New
convenience wrappers for lookup_reference_type().
* gdbtypes.h (make_reference_type, lookup_reference_type): Add a
reference kind parameter.
(lookup_lvalue_reference_type, lookup_rvalue_reference_type): Add
wrappers for lookup_reference_type().
* guile/scm-type.c (gdbscm_type_reference): Use
lookup_lvalue_reference_type() instead of lookup_reference_type().
* guile/scm-value.c (gdbscm_value_dynamic_type): Likewise.
* parse.c (follow_types): Likewise.
* python/py-type.c (typy_reference, typy_lookup_type): Likewise.
* python/py-value.c (valpy_get_dynamic_type, valpy_getitem):
Likewise.
* python/py-xmethods.c (gdbpy_get_xmethod_result_type)
(gdbpy_invoke_xmethod): Likewise.
* stabsread.c: Provide extra argument to make_reference_type()
call.
* valops.c (value_ref, value_rtti_indirect_type): Use
lookup_lvalue_reference_type() instead of lookup_reference_type().
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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.
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This patch makes parse_expression and friends return a unique_ptr
instead of raw pointer [1]:
typedef gdb::unique_malloc_ptr<expression> expression_up;
and then adjusts the codebase throughout to stop using cleanups to
manage lifetime of expression pointers.
Whenever I found a structure owning an expression pointer, I made it
store a unique_ptr instead of a raw pointer, which then requires using
new/delete of the holding structure, instead of XNEW/xfree.
[1] - I'd like to set the rule that types named with an "_up" suffix
are unique_ptr typedefs.
Note I used gdb::unique_xmalloc_ptr instead of gdb::unique_ptr, simply
because we still use xmalloc instead of new to allocate expression
objects. Once that's changed, all we need to do is change the
expression_up typedef and the smart pointer will then call delete
instead of xfree.
gdb/ChangeLog:
2016-11-08 Pedro Alves <palves@redhat.com>
* ada-lang.c (ada_read_renaming_var_value): Use expression_up.
(struct ada_catchpoint_location) <excep_cond_expr>: Now an
expression_up.
(ada_catchpoint_location_dtor): Reset excep_cond_expr instead of
using xfree.
(create_excep_cond_exprs): Use expression_up and gdb::move.
(allocate_location_exception): Use new instead of XNEW.
(should_stop_exception): Likewise. Adjust to use expression_up.
(create_ada_exception_catchpoint): Use new instead of XNEW.
* ax-gdb.c (agent_eval_command_one): Use expression_up instead of
cleanups.
(maint_agent_printf_command): Use expression_up.
* break-catch-sig.c (create_signal_catchpoint): Use new instead of
XNEW.
* break-catch-syscall.c (create_syscall_event_catchpoint):
Likewise.
* break-catch-throw.c (handle_gnu_v3_exceptions): Use new instead
of XCNEW. Use gdb::unique_ptr instead of cleanups.
* breakpoint.c (set_breakpoint_condition, update_watchpoint)
(parse_cmd_to_aexpr, watchpoint_check)
(bpstat_check_breakpoint_conditions, watchpoint_locations_match):
Adjust to use expression_up.
(init_bp_location): Adjust.
(free_bp_location): Use delete instead of xfree.
(set_raw_breakpoint_without_location, set_raw_breakpoint)
(add_solib_catchpoint, create_fork_vfork_event_catchpoint)
(new_single_step_breakpoint, create_breakpoint_sal): Use new
instead of XNEW.
(find_condition_and_thread): Adjust to use expression_up.
(create_breakpoint): Use new instead of XNEW.
(dtor_watchpoint): Don't xfree expression pointers, they're
unique_ptr's now.
(insert_watchpoint, remove_watchpoint): Adjust.
(watch_command_1): Use expression_up. Use new instead of XCNEW.
(catch_exec_command_1): Use new instead of XNEW.
(bp_location_dtor): Don't xfree expression pointers, they're
unique_ptr's now.
(base_breakpoint_allocate_location)
(strace_marker_create_breakpoints_sal): Use new instead of XNEW.
(delete_breakpoint): Use delete instead of xfree.
* breakpoint.h (struct bp_location) <cond>: Now an
unique_ptr<expression> instead of a raw pointer.
(struct watchpoint) <exp, cond_exp>: Likewise.
* cli/cli-script.c (execute_control_command): Use expression_up
instead of cleanups.
* dtrace-probe.c (dtrace_process_dof_probe): Use expression_up.
* eval.c (parse_and_eval_address, parse_and_eval_long)
(parse_and_eval, parse_to_comma_and_eval, parse_and_eval_type):
Use expression_up instead of cleanups.
* expression.h (expression_up): New typedef.
(parse_expression, parse_expression_with_language, parse_exp_1):
Change return type to expression_up.
* mi/mi-main.c (mi_cmd_data_evaluate_expression)
(print_variable_or_computed): Use expression_up.
* objc-lang.c (print_object_command): Use expression_up instead of
cleanups.
* parse.c (parse_exp_1, parse_exp_in_context)
(parse_exp_in_context_1, parse_expression)
(parse_expression_with_language): Return an expression_up instead
of a raw pointer.
(parse_expression_for_completion): Use expression_up.
* printcmd.c (struct display) <exp>: Now an expression_up instead
of a raw pointer.
(print_command_1, output_command_const, set_command, x_command):
Use expression_up instead of cleanups.
(display_command): Likewise. Use new instead of XNEW.
(free_display): Use delete instead of xfree.
(do_one_display): Adjust to use expression_up.
* remote.c (remote_download_tracepoint): Likewise.
* stack.c (return_command): Likewise.
* tracepoint.c (validate_actionline, encode_actions_1): Use
expression_up instead of cleanups.
* typeprint.c (whatis_exp, maintenance_print_type): Likewise.
* value.c (init_if_undefined_command): Likewise.
* varobj.c (struct varobj_root) <exp>: Now an expression_up
instead of a raw pointer.
(varobj_create): Adjust.
(varobj_set_value): Use an expression_up instead of cleanups.
(new_root_variable): Use new instead of XNEW.
(free_variable): Use delete instead of xfree.
(value_of_root_1): Use std::swap.
|
|
GDB computes structure byte offsets using a 32 bit integer. And,
first it computes the offset in bits and then converts to bytes. The
result is that any offset that if 512K bytes or larger overflows.
This patch changes GDB to use LONGEST for such calculations.
PR gdb/17520 Structure offset wrong when 1/4 GB or greater.
* c-lang.h: Change all parameters, variables, and struct or union
members used as struct or union fie3ld offsets from int to
LONGEST.
* c-valprint.c: Likewise.
* cp-abi.c: Likewise.
* cp-abi.h: Likewise.
* cp-valprint.c: Likewise.
* d-valprint.c: Likewise.
* dwarf2loc.c: Likewise.
* eval.c: Likewise.
* extension-priv.h: Likewise.
* extension.c: Likewise.
* extension.h: Likewise.
* findvar.c: Likewise.
* gdbtypes.h: Likewise.
* gnu-v2-abi.c: Likewise.
* gnu-v3-abi.c: Likewise.
* go-valprint.c: Likewise.
* guile/guile-internal.h: Likewise.
* guile/scm-pretty-print.c: Likewise.
* jv-valprint.c Likewise.
* opencl-lang.c: Likewise.
* p-lang.h: Likewise.
* python/py-prettyprint.c: Likewise.
* python/python-internal.h: Likewise.
* spu-tdep.c: Likewise.
* typeprint.c: Likewise.
* valarith.c: Likewise.
* valops.c: Likewise.
* valprint.c: Likewise.
* valprint.h: Likewise.
* value.c: Likewise.
* value.h: Likewise.
* p-valprint.c: Likewise.
* c-typeprint.c (c_type_print_base): When printing offset, use
plongest, not %d.
* gdbtypes.c (recursive_dump_type): Ditto.
|
|
Assume that we have a C program like this:
struct foo_type
{
int var;
} foo;
struct foo_type *foo_ptr = &foo;
int
main ()
{
return foo_ptr->var;
}
Then GDB should be able to evaluate the following, however, it currently
does not:
(gdb) start
...
(gdb) whatis &(foo_ptr->var)
Attempt to take address of value not located in memory.
The problem is that in EVAL_AVOID_SIDE_EFFECTS mode,
eval.c:evaluate_subexp_standard always returns a not_lval value as the
result for a STRUCTOP_PTR operation. As a consequence, the rest of
the code believes that one cannot take the address of the returned
value.
This patch fixes STRUCTOP_PTR handling so that the VALUE_LVAL
attribute for the returned value is properly initialized. After this
change, the above session becomes:
(gdb) start
...
(gdb) whatis &(foo_ptr->var)
type = int *
This commit is largely the same as commit 2520f728b710 (Forward
VALUE_LVAL when avoiding side effects for STRUCTOP_STRUCT) but applied
to STRUCTOP_PTR rather than STRUCTOP_STRUCT. Both of these commits are
building on top of commit ac1ca910d74d (Fixes for PR exp/15364).
gdb/ChangeLog:
* eval.c (evaluate_subexp_standard): If EVAL_AVOID_SIDE_EFFECTS
mode, forward the VALUE_LVAL attribute to the returned value in
the STRUCTOP_PTR case.
gdb/testsuite/ChangeLog:
* gdb.base/whatis.c: Extend the test case.
* gdb.base/whatis.exp: Add additional tests.
|
|
This renames OP_F90_RANGE to OP_RANGE, and similarly renames the
f90_range_type enum.
2016-05-17 Tom Tromey <tom@tromey.com>
* std-operator.def (OP_RANGE): Rename from OP_F90_RANGE.
* rust-lang.c: Don't include f-lang.h.
(rust_range, rust_compute_range, rust_subscript)
(rust_evaluate_subexp): Update.
* rust-exp.y: Don't include f-lang.h.
(ast_range, convert_ast_to_expression): Update.
* parse.c (operator_length_standard): Update.
* f-lang.h (enum f90_range_type): Move to expression.h.
* f-exp.y: Use OP_RANGE.
* expression.h (enum range_type): New enum; renamed from
f90_range_type.
* expprint.c: Don't include f-lang.h.
(print_subexp_standard, dump_subexp_body_standard): Use OP_RANGE.
* eval.c (value_f90_subarray, evaluate_subexp_standard): Update.
|
|
This patch adds support for TYPE_CODE_ENUM values to be supplied
as right-hand side operand of the BINOP_REPEAT (@) operator. The
following should now work:
enum {
sz = 17
};
int
main ()
{
int arr[sz + 1] = { 0 };
return 0; /* line 9 here */
}
(gdb) b 9
(gdb) r
(gdb) p arr@sz
$1 = {0 <repeats 17 times>}
(gdb)
A couple of tests is also included in this patch to demonstrate that it is
working as intended.
gdb/Changelog:
2016-04-01 Artemiy Volkov <artemiyv@acm.org>
PR gdb/19820
* eval.c (evaluate_subexp_standard): Allow TYPE_CODE_ENUM to be
the type of BINOP_REPEAT's second operand.
gdb/testsuite/Changelog:
2016-04-01 Artemiy Volkov <artemiyv@acm.org>
PR gdb/19820
* gdb.base/printcmds.exp: Add artificial arrays tests.
|
|
gdb/ChangeLog:
Update year range in copyright notice of all files.
|
|
Assume foo_array is a pointer to a C structure. GDB must evaluate the
following expression properly, but it does not currently:
(gdb) print 1 && &foo_array[1].a
Attempt to take address of value not located in memory.
The problem is that in EVAL_AVOID_SIDE_EFFECTS mode,
eval.c:evaluate_subexp_standard always returns a not_lval value as the
result for a STRUCTOP_STRUCT operation. As a consequence, the rest of
the code believes that one cannot take the address of the returned
value.
This patch fixes STRUCTOP_STRUCT handling so that the VALUE_LVAL
attribute for the returned value is properly initialized. After this
change, the above session becomes:
(gdb) print 1 && &foo_array[1].a
$1 = 1
gdb/ChangeLog:
* eval.c (evaluate_subexp_standard) <STRUCTOP_STRUCT>: If
EVAL_AVOID_SIDE_EFFECTS mode, forward the VALUE_LVAL attribute
to the returned value.
gdb/testsuite/ChangeLog:
* gdb.base/nested-addr.c: New file.
* gdb.base/nested-addr.exp: New testcase.
Tested on x86_64-linux, no regression.
|
|
This patch is part of the make-gdb-buildable-in-C++ effort. The idea is
to change some calls to the xmalloc family of functions to calls to the
equivalents in the XNEW family. This avoids adding an explicit cast, so
it keeps the code a bit more readable. Some of them also map relatively
well to a C++ equivalent (XNEW (struct foo) -> new foo), so it will be
possible to do scripted replacements if needed.
I only changed calls that were obviously allocating memory for one or
multiple "objects". Allocation of variable sizes (such as strings or
buffer handling) will be for later (and won't use XNEW).
- xmalloc (sizeof (struct foo)) -> XNEW (struct foo)
- xmalloc (num * sizeof (struct foo)) -> XNEWVEC (struct foo, num)
- xcalloc (1, sizeof (struct foo)) -> XCNEW (struct foo)
- xcalloc (num, sizeof (struct foo)) -> XCNEWVEC (struct foo, num)
- xrealloc (p, num * sizeof (struct foo) -> XRESIZEVEC (struct foo, p, num)
- obstack_alloc (ob, sizeof (struct foo)) -> XOBNEW (ob, struct foo)
- obstack_alloc (ob, num * sizeof (struct foo)) -> XOBNEWVEC (ob, struct foo, num)
- alloca (sizeof (struct foo)) -> XALLOCA (struct foo)
- alloca (num * sizeof (struct foo)) -> XALLOCAVEC (struct foo, num)
Some instances of xmalloc followed by memset to zero the buffer were
replaced by XCNEW or XCNEWVEC.
I regtested on x86-64, Ubuntu 14.04, but the patch touches many
architecture-specific files. For those I'll have to rely on the
buildbot or people complaining that I broke their gdb.
gdb/ChangeLog:
* aarch64-linux-nat.c (aarch64_add_process): Likewise.
* aarch64-tdep.c (aarch64_gdbarch_init): Likewise.
* ada-exp.y (write_ambiguous_var): Likewise.
* ada-lang.c (resolve_subexp): Likewise.
(user_select_syms): Likewise.
(assign_aggregate): Likewise.
(ada_evaluate_subexp): Likewise.
(cache_symbol): Likewise.
* addrmap.c (allocate_key): Likewise.
(addrmap_create_mutable): Likewise.
* aix-thread.c (sync_threadlists): Likewise.
* alpha-tdep.c (alpha_push_dummy_call): Likewise.
(alpha_gdbarch_init): Likewise.
* amd64-windows-tdep.c (amd64_windows_push_arguments): Likewise.
* arm-linux-nat.c (arm_linux_add_process): Likewise.
* arm-linux-tdep.c (arm_linux_displaced_step_copy_insn): Likewise.
* arm-tdep.c (push_stack_item): Likewise.
(arm_displaced_step_copy_insn): Likewise.
(arm_gdbarch_init): Likewise.
(_initialize_arm_tdep): Likewise.
* avr-tdep.c (push_stack_item): Likewise.
* ax-general.c (new_agent_expr): Likewise.
* block.c (block_initialize_namespace): Likewise.
* breakpoint.c (alloc_counted_command_line): Likewise.
(update_dprintf_command_list): Likewise.
(parse_breakpoint_sals): Likewise.
(decode_static_tracepoint_spec): Likewise.
(until_break_command): Likewise.
(clear_command): Likewise.
(update_global_location_list): Likewise.
(get_breakpoint_objfile_data) Likewise.
* btrace.c (ftrace_new_function): Likewise.
(btrace_set_insn_history): Likewise.
(btrace_set_call_history): Likewise.
* buildsym.c (add_symbol_to_list): Likewise.
(record_pending_block): Likewise.
(start_subfile): Likewise.
(start_buildsym_compunit): Likewise.
(push_subfile): Likewise.
(end_symtab_get_static_block): Likewise.
(buildsym_init): Likewise.
* cli/cli-cmds.c (source_command): Likewise.
* cli/cli-decode.c (add_cmd): Likewise.
* cli/cli-script.c (build_command_line): Likewise.
(setup_user_args): Likewise.
(realloc_body_list): Likewise.
(process_next_line): Likewise.
(copy_command_lines): Likewise.
* cli/cli-setshow.c (do_set_command): Likewise.
* coff-pe-read.c (read_pe_exported_syms): Likewise.
* coffread.c (coff_locate_sections): Likewise.
(coff_symtab_read): Likewise.
(coff_read_struct_type): Likewise.
* common/cleanups.c (make_my_cleanup2): Likewise.
* common/common-exceptions.c (throw_it): Likewise.
* common/filestuff.c (make_cleanup_close): Likewise.
* common/format.c (parse_format_string): Likewise.
* common/queue.h (DEFINE_QUEUE_P): Likewise.
* compile/compile-object-load.c (munmap_list_add): Likewise.
(compile_object_load): Likewise.
* compile/compile-object-run.c (compile_object_run): Likewise.
* compile/compile.c (append_args): Likewise.
* corefile.c (specify_exec_file_hook): Likewise.
* cp-support.c (make_symbol_overload_list): Likewise.
* cris-tdep.c (push_stack_item): Likewise.
(cris_gdbarch_init): Likewise.
* ctf.c (ctf_trace_file_writer_new): Likewise.
* dbxread.c (init_header_files): Likewise.
(add_new_header_file): Likewise.
(init_bincl_list): Likewise.
(dbx_end_psymtab): Likewise.
(start_psymtab): Likewise.
(dbx_end_psymtab): Likewise.
* dcache.c (dcache_init): Likewise.
* dictionary.c (dict_create_hashed): Likewise.
(dict_create_hashed_expandable): Likewise.
(dict_create_linear): Likewise.
(dict_create_linear_expandable): Likewise.
* dtrace-probe.c (dtrace_process_dof_probe): Likewise.
* dummy-frame.c (register_dummy_frame_dtor): Likewise.
* dwarf2-frame-tailcall.c (cache_new_ref1): Likewise.
* dwarf2-frame.c (dwarf2_build_frame_info): Likewise.
(decode_frame_entry_1): Likewise.
* dwarf2expr.c (new_dwarf_expr_context): Likewise.
* dwarf2loc.c (dwarf2_compile_expr_to_ax): Likewise.
* dwarf2read.c (dwarf2_has_info): Likewise.
(create_signatured_type_table_from_index): Likewise.
(dwarf2_read_index): Likewise.
(dw2_get_file_names_reader): Likewise.
(create_all_type_units): Likewise.
(read_cutu_die_from_dwo): Likewise.
(init_tu_and_read_dwo_dies): Likewise.
(init_cutu_and_read_dies): Likewise.
(create_all_comp_units): Likewise.
(queue_comp_unit): Likewise.
(inherit_abstract_dies): Likewise.
(read_call_site_scope): Likewise.
(dwarf2_add_field): Likewise.
(dwarf2_add_typedef): Likewise.
(dwarf2_add_member_fn): Likewise.
(attr_to_dynamic_prop): Likewise.
(abbrev_table_alloc_abbrev): Likewise.
(abbrev_table_read_table): Likewise.
(add_include_dir): Likewise.
(add_file_name): Likewise.
(dwarf_decode_line_header): Likewise.
(dwarf2_const_value_attr): Likewise.
(dwarf_alloc_block): Likewise.
(parse_macro_definition): Likewise.
(set_die_type): Likewise.
(write_psymtabs_to_index): Likewise.
(create_cus_from_index): Likewise.
(dwarf2_create_include_psymtab): Likewise.
(process_psymtab_comp_unit_reader): Likewise.
(build_type_psymtab_dependencies): Likewise.
(read_comp_units_from_section): Likewise.
(compute_compunit_symtab_includes): Likewise.
(create_dwo_unit_in_dwp_v1): Likewise.
(create_dwo_unit_in_dwp_v2): Likewise.
(read_func_scope): Likewise.
(process_structure_scope): Likewise.
(mark_common_block_symbol_computed): Likewise.
(load_partial_dies): Likewise.
(dwarf2_symbol_mark_computed): Likewise.
* elfread.c (elf_symfile_segments): Likewise.
(elf_read_minimal_symbols): Likewise.
* environ.c (make_environ): Likewise.
* eval.c (evaluate_subexp_standard): Likewise.
* event-loop.c (create_file_handler): Likewise.
(create_async_signal_handler): Likewise.
(create_async_event_handler): Likewise.
(create_timer): Likewise.
* exec.c (build_section_table): Likewise.
* fbsd-nat.c (fbsd_remember_child): Likewise.
* fork-child.c (fork_inferior): Likewise.
* frv-tdep.c (new_variant): Likewise.
* gdbarch.sh (gdbarch_alloc): Likewise.
(append_name): Likewise.
* gdbtypes.c (rank_function): Likewise.
(copy_type_recursive): Likewise.
(add_dyn_prop): Likewise.
* gnu-nat.c (make_proc): Likewise.
(make_inf): Likewise.
(gnu_write_inferior): Likewise.
* gnu-v3-abi.c (build_gdb_vtable_type): Likewise.
(build_std_type_info_type): Likewise.
* guile/scm-param.c (compute_enum_list): Likewise.
* guile/scm-utils.c (gdbscm_parse_function_args): Likewise.
* guile/scm-value.c (gdbscm_value_call): Likewise.
* h8300-tdep.c (h8300_gdbarch_init): Likewise.
* hppa-tdep.c (hppa_init_objfile_priv_data): Likewise.
(read_unwind_info): Likewise.
* ia64-tdep.c (ia64_gdbarch_init): Likewise.
* infcall.c (dummy_frame_context_saver_setup): Likewise.
(call_function_by_hand_dummy): Likewise.
* infcmd.c (step_once): Likewise.
(finish_forward): Likewise.
(attach_command): Likewise.
(notice_new_inferior): Likewise.
* inferior.c (add_inferior_silent): Likewise.
* infrun.c (add_displaced_stepping_state): Likewise.
(save_infcall_control_state): Likewise.
(save_inferior_ptid): Likewise.
(_initialize_infrun): Likewise.
* jit.c (bfd_open_from_target_memory): Likewise.
(jit_gdbarch_data_init): Likewise.
* language.c (add_language): Likewise.
* linespec.c (decode_line_2): Likewise.
* linux-nat.c (add_to_pid_list): Likewise.
(add_initial_lwp): Likewise.
* linux-thread-db.c (add_thread_db_info): Likewise.
(record_thread): Likewise.
(info_auto_load_libthread_db): Likewise.
* m32c-tdep.c (m32c_gdbarch_init): Likewise.
* m68hc11-tdep.c (m68hc11_gdbarch_init): Likewise.
* m68k-tdep.c (m68k_gdbarch_init): Likewise.
* m88k-tdep.c (m88k_analyze_prologue): Likewise.
* macrocmd.c (macro_define_command): Likewise.
* macroexp.c (gather_arguments): Likewise.
* macroscope.c (sal_macro_scope): Likewise.
* macrotab.c (new_macro_table): Likewise.
* mdebugread.c (push_parse_stack): Likewise.
(parse_partial_symbols): Likewise.
(parse_symbol): Likewise.
(psymtab_to_symtab_1): Likewise.
(new_block): Likewise.
(new_psymtab): Likewise.
(mdebug_build_psymtabs): Likewise.
(add_pending): Likewise.
(elfmdebug_build_psymtabs): Likewise.
* mep-tdep.c (mep_gdbarch_init): Likewise.
* mi/mi-main.c (mi_execute_command): Likewise.
* mi/mi-parse.c (mi_parse_argv): Likewise.
* minidebug.c (lzma_open): Likewise.
* minsyms.c (terminate_minimal_symbol_table): Likewise.
* mips-linux-nat.c (mips_linux_insert_watchpoint): Likewise.
* mips-tdep.c (mips_gdbarch_init): Likewise.
* mn10300-tdep.c (mn10300_gdbarch_init): Likewise.
* msp430-tdep.c (msp430_gdbarch_init): Likewise.
* mt-tdep.c (mt_registers_info): Likewise.
* nat/aarch64-linux.c (aarch64_linux_new_thread): Likewise.
* nat/linux-btrace.c (linux_enable_bts): Likewise.
(linux_enable_pt): Likewise.
* nat/linux-osdata.c (linux_xfer_osdata_processes): Likewise.
(linux_xfer_osdata_processgroups): Likewise.
* nios2-tdep.c (nios2_gdbarch_init): Likewise.
* nto-procfs.c (procfs_meminfo): Likewise.
* objc-lang.c (start_msglist): Likewise.
(selectors_info): Likewise.
(classes_info): Likewise.
(find_methods): Likewise.
* objfiles.c (allocate_objfile): Likewise.
(update_section_map): Likewise.
* osabi.c (gdbarch_register_osabi): Likewise.
(gdbarch_register_osabi_sniffer): Likewise.
* parse.c (start_arglist): Likewise.
* ppc-linux-nat.c (hwdebug_find_thread_points_by_tid): Likewise.
(hwdebug_insert_point): Likewise.
* printcmd.c (display_command): Likewise.
(ui_printf): Likewise.
* procfs.c (create_procinfo): Likewise.
(load_syscalls): Likewise.
(proc_get_LDT_entry): Likewise.
(proc_update_threads): Likewise.
* prologue-value.c (make_pv_area): Likewise.
(pv_area_store): Likewise.
* psymtab.c (extend_psymbol_list): Likewise.
(init_psymbol_list): Likewise.
(allocate_psymtab): Likewise.
* python/py-inferior.c (add_thread_object): Likewise.
* python/py-param.c (compute_enum_values): Likewise.
* python/py-value.c (valpy_call): Likewise.
* python/py-varobj.c (py_varobj_iter_next): Likewise.
* python/python.c (ensure_python_env): Likewise.
* record-btrace.c (record_btrace_start_replaying): Likewise.
* record-full.c (record_full_reg_alloc): Likewise.
(record_full_mem_alloc): Likewise.
(record_full_end_alloc): Likewise.
(record_full_core_xfer_partial): Likewise.
* regcache.c (get_thread_arch_aspace_regcache): Likewise.
* remote-fileio.c (remote_fileio_init_fd_map): Likewise.
* remote-notif.c (remote_notif_state_allocate): Likewise.
* remote.c (demand_private_info): Likewise.
(remote_notif_stop_alloc_reply): Likewise.
(remote_enable_btrace): Likewise.
* reverse.c (save_bookmark_command): Likewise.
* rl78-tdep.c (rl78_gdbarch_init): Likewise.
* rx-tdep.c (rx_gdbarch_init): Likewise.
* s390-linux-nat.c (s390_insert_watchpoint): Likewise.
* ser-go32.c (dos_get_tty_state): Likewise.
(dos_copy_tty_state): Likewise.
* ser-mingw.c (ser_windows_open): Likewise.
(ser_console_wait_handle): Likewise.
(ser_console_get_tty_state): Likewise.
(make_pipe_state): Likewise.
(net_windows_open): Likewise.
* ser-unix.c (hardwire_get_tty_state): Likewise.
(hardwire_copy_tty_state): Likewise.
* solib-aix.c (solib_aix_new_lm_info): Likewise.
* solib-dsbt.c (dsbt_current_sos): Likewise.
(dsbt_relocate_main_executable): Likewise.
* solib-frv.c (frv_current_sos): Likewise.
(frv_relocate_main_executable): Likewise.
* solib-spu.c (spu_bfd_fopen): Likewise.
* solib-svr4.c (lm_info_read): Likewise.
(svr4_copy_library_list): Likewise.
(svr4_default_sos): Likewise.
* source.c (find_source_lines): Likewise.
(line_info): Likewise.
(add_substitute_path_rule): Likewise.
* spu-linux-nat.c (spu_bfd_open): Likewise.
* spu-tdep.c (info_spu_dma_cmdlist): Likewise.
* stabsread.c (dbx_lookup_type): Likewise.
(read_type): Likewise.
(read_member_functions): Likewise.
(read_struct_fields): Likewise.
(read_baseclasses): Likewise.
(read_args): Likewise.
(_initialize_stabsread): Likewise.
* stack.c (func_command): Likewise.
* stap-probe.c (handle_stap_probe): Likewise.
* symfile.c (addrs_section_sort): Likewise.
(addr_info_make_relative): Likewise.
(load_section_callback): Likewise.
(add_symbol_file_command): Likewise.
(init_filename_language_table): Likewise.
* symtab.c (create_filename_seen_cache): Likewise.
(sort_search_symbols_remove_dups): Likewise.
(search_symbols): Likewise.
* target.c (make_cleanup_restore_target_terminal): Likewise.
* thread.c (new_thread): Likewise.
(enable_thread_stack_temporaries): Likewise.
(make_cleanup_restore_current_thread): Likewise.
(thread_apply_all_command): Likewise.
* tic6x-tdep.c (tic6x_gdbarch_init): Likewise.
* top.c (gdb_readline_wrapper): Likewise.
* tracefile-tfile.c (tfile_trace_file_writer_new): Likewise.
* tracepoint.c (trace_find_line_command): Likewise.
(all_tracepoint_actions_and_cleanup): Likewise.
(make_cleanup_restore_current_traceframe): Likewise.
(get_uploaded_tp): Likewise.
(get_uploaded_tsv): Likewise.
* tui/tui-data.c (tui_alloc_generic_win_info): Likewise.
(tui_alloc_win_info): Likewise.
(tui_alloc_content): Likewise.
(tui_add_content_elements): Likewise.
* tui/tui-disasm.c (tui_find_disassembly_address): Likewise.
(tui_set_disassem_content): Likewise.
* ui-file.c (ui_file_new): Likewise.
(stdio_file_new): Likewise.
(tee_file_new): Likewise.
* utils.c (make_cleanup_restore_integer): Likewise.
(add_internal_problem_command): Likewise.
* v850-tdep.c (v850_gdbarch_init): Likewise.
* valops.c (find_oload_champ): Likewise.
* value.c (allocate_value_lazy): Likewise.
(record_latest_value): Likewise.
(create_internalvar): Likewise.
* varobj.c (install_variable): Likewise.
(new_variable): Likewise.
(new_root_variable): Likewise.
(cppush): Likewise.
(_initialize_varobj): Likewise.
* windows-nat.c (windows_make_so): Likewise.
* x86-nat.c (x86_add_process): Likewise.
* xcoffread.c (arrange_linetable): Likewise.
(allocate_include_entry): Likewise.
(process_linenos): Likewise.
(SYMBOL_DUP): Likewise.
(xcoff_start_psymtab): Likewise.
(xcoff_end_psymtab): Likewise.
* xml-support.c (gdb_xml_parse_attr_ulongest): Likewise.
* xtensa-tdep.c (xtensa_register_type): Likewise.
* gdbarch.c: Regenerate.
* gdbarch.h: Regenerate.
gdb/gdbserver/ChangeLog:
* ax.c (gdb_parse_agent_expr): Likewise.
(compile_bytecodes): Likewise.
* dll.c (loaded_dll): Likewise.
* event-loop.c (append_callback_event): Likewise.
(create_file_handler): Likewise.
(create_file_event): Likewise.
* hostio.c (handle_open): Likewise.
* inferiors.c (add_thread): Likewise.
(add_process): Likewise.
* linux-aarch64-low.c (aarch64_linux_new_process): Likewise.
* linux-arm-low.c (arm_new_process): Likewise.
(arm_new_thread): Likewise.
* linux-low.c (add_to_pid_list): Likewise.
(linux_add_process): Likewise.
(handle_extended_wait): Likewise.
(add_lwp): Likewise.
(enqueue_one_deferred_signal): Likewise.
(enqueue_pending_signal): Likewise.
(linux_resume_one_lwp_throw): Likewise.
(linux_resume_one_thread): Likewise.
(linux_read_memory): Likewise.
(linux_write_memory): Likewise.
* linux-mips-low.c (mips_linux_new_process): Likewise.
(mips_linux_new_thread): Likewise.
(mips_add_watchpoint): Likewise.
* linux-x86-low.c (initialize_low_arch): Likewise.
* lynx-low.c (lynx_add_process): Likewise.
* mem-break.c (set_raw_breakpoint_at): Likewise.
(set_breakpoint): Likewise.
(add_condition_to_breakpoint): Likewise.
(add_commands_to_breakpoint): Likewise.
(clone_agent_expr): Likewise.
(clone_one_breakpoint): Likewise.
* regcache.c (new_register_cache): Likewise.
* remote-utils.c (look_up_one_symbol): Likewise.
* server.c (queue_stop_reply): Likewise.
(start_inferior): Likewise.
(queue_stop_reply_callback): Likewise.
(handle_target_event): Likewise.
* spu-low.c (fetch_ppc_memory): Likewise.
(store_ppc_memory): Likewise.
* target.c (set_target_ops): Likewise.
* thread-db.c (thread_db_load_search): Likewise.
(try_thread_db_load_1): Likewise.
* tracepoint.c (add_tracepoint): Likewise.
(add_tracepoint_action): Likewise.
(create_trace_state_variable): Likewise.
(cmd_qtdpsrc): Likewise.
(cmd_qtro): Likewise.
(add_while_stepping_state): Likewise.
* win32-low.c (child_add_thread): Likewise.
(get_image_name): Likewise.
|
|
This patch is mostly extracted from Pedro's C++ branch. It adds explicit
casts from integer to enum types, where it is really the intention to do
so. This could be because we are ...
* iterating on enum values (we need to iterate on an equivalent integer)
* converting from a value read from bytes (dwarf attribute, agent
expression opcode) to the equivalent enum
* reading the equivalent integer value from another language (Python/Guile)
An exception to that is the casts in regcache.c. It seems to me like
struct regcache's register_status field could be a pointer to an array of
enum register_status. Doing so would waste a bit of memory (4 bytes
used by the enum vs 1 byte used by the current signed char, for each
register). If we switch to C++11 one day, we can define the underlying
type of an enum type, so we could have the best of both worlds.
gdb/ChangeLog:
* arm-tdep.c (set_fp_model_sfunc): Add cast from integer to enum.
(arm_set_abi): Likewise.
* ax-general.c (ax_print): Likewise.
* c-exp.y (exp : string_exp): Likewise.
* compile/compile-loc2c.c (compute_stack_depth_worker): Likewise.
(do_compile_dwarf_expr_to_c): Likewise.
* cp-name-parser.y (demangler_special : DEMANGLER_SPECIAL start):
Likewise.
* dwarf2expr.c (execute_stack_op): Likewise.
* dwarf2loc.c (dwarf2_compile_expr_to_ax): Likewise.
(disassemble_dwarf_expression): Likewise.
* dwarf2read.c (dwarf2_add_member_fn): Likewise.
(read_array_order): Likewise.
(abbrev_table_read_table): Likewise.
(read_attribute_value): Likewise.
(skip_unknown_opcode): Likewise.
(dwarf_decode_macro_bytes): Likewise.
(dwarf_decode_macros): Likewise.
* eval.c (value_f90_subarray): Likewise.
* guile/scm-param.c (gdbscm_make_parameter): Likewise.
* i386-linux-tdep.c (i386_canonicalize_syscall): Likewise.
* infrun.c (handle_command): Likewise.
* memory-map.c (memory_map_start_memory): Likewise.
* osabi.c (set_osabi): Likewise.
* parse.c (operator_length_standard): Likewise.
* ppc-linux-tdep.c (ppc_canonicalize_syscall): Likewise, and use
single return point.
* python/py-frame.c (gdbpy_frame_stop_reason_string): Likewise.
* python/py-symbol.c (gdbpy_lookup_symbol): Likewise.
(gdbpy_lookup_global_symbol): Likewise.
* record-full.c (record_full_restore): Likewise.
* regcache.c (regcache_register_status): Likewise.
(regcache_raw_read): Likewise.
(regcache_cooked_read): Likewise.
* rs6000-tdep.c (powerpc_set_vector_abi): Likewise.
* symtab.c (initialize_ordinary_address_classes): Likewise.
* target-debug.h (target_debug_print_signals): Likewise.
* utils.c (do_restore_current_language): Likewise.
|
|
As Pedro suggested on gdb-patches@ (see
https://sourceware.org/ml/gdb-patches/2015-05/msg00714.html), this
change makes symbol lookup functions return a structure that includes
both the symbol found and the block in which it was found. This makes
it possible to get rid of the block_found global variable and thus makes
block hunting explicit.
gdb/
* ada-exp.y (write_object_renaming): Replace struct
ada_symbol_info with struct block_symbol. Update field
references accordingly.
(block_lookup, select_possible_type_sym): Likewise.
(find_primitive_type): Likewise. Also update call to
ada_lookup_symbol to extract the symbol itself.
(write_var_or_type, write_name_assoc): Likewise.
* ada-lang.h (struct ada_symbol_info): Remove.
(ada_lookup_symbol_list): Replace struct ada_symbol_info with
struct block_symbol.
(ada_lookup_encoded_symbol, user_select_syms): Likewise.
(ada_lookup_symbol): Return struct block_symbol instead of a
mere symbol.
* ada-lang.c (defns_collected): Replace struct ada_symbol_info
with struct block_symbol.
(resolve_subexp, ada_resolve_function, sort_choices,
user_select_syms, is_nonfunction, add_defn_to_vec,
num_defns_collected, defns_collected,
symbols_are_identical_enums, remove_extra_symbols,
remove_irrelevant_renamings, add_lookup_symbol_list_worker,
ada_lookup_symbol_list, ada_iterate_over_symbols,
ada_lookup_encoded_symbol, get_var_value): Likewise.
(ada_lookup_symbol): Return a block_symbol instead of a mere
symbol. Replace struct ada_symbol_info with struct
block_symbol.
(ada_lookup_symbol_nonlocal): Likewise.
(standard_lookup): Make block passing explicit through
lookup_symbol_in_language.
* ada-tasks.c (get_tcb_types_info): Update the calls to
lookup_symbol_in_language to extract the mere symbol out of the
returned value.
(ada_tasks_inferior_data_sniffer): Likewise.
* ax-gdb.c (gen_static_field): Likewise for the call to
lookup_symbol.
(gen_maybe_namespace_elt): Deal with struct symbol_in_block from
lookup functions.
(gen_expr): Likewise.
* c-exp.y: Likewise. Remove uses of block_found.
(lex_one_token, classify_inner_name, c_print_token): Likewise.
(classify_name): Likewise. Rename the "sym" local variable to
"bsym".
* c-valprint.c (print_unpacked_pointer): Likewise.
* compile/compile-c-symbols.c (convert_symbol_sym): Promote the
"sym" parameter from struct symbol * to struct block_symbol.
Use it to remove uses of block_found. Deal with struct
symbol_in_block from lookup functions.
(gcc_convert_symbol): Likewise. Update the call to
convert_symbol_sym.
* compile/compile-object-load.c (compile_object_load): Deal with
struct symbol_in_block from lookup functions.
* cp-namespace.c (cp_lookup_nested_symbol_1,
cp_lookup_nested_symbol, cp_lookup_bare_symbol,
cp_search_static_and_baseclasses,
cp_lookup_symbol_in_namespace, cp_lookup_symbol_via_imports,
cp_lookup_symbol_imports_or_template,
cp_lookup_symbol_via_all_imports, cp_lookup_symbol_namespace,
lookup_namespace_scope, cp_lookup_nonlocal,
find_symbol_in_baseclass): Return struct symbol_in_block instead
of mere symbols and deal with struct symbol_in_block from lookup
functions.
* cp-support.c (inspect_type, replace_typedefs,
cp_lookup_rtti_type): Deal with struct symbol_in_block from
lookup functions.
* cp-support.h (cp_lookup_symbol_nonlocal,
cp_lookup_symbol_from_namespace,
cp_lookup_symbol_imports_or_template, cp_lookup_nested_symbol):
Return struct symbol_in_block instead of mere symbols.
* d-exp.y (d_type_from_name, d_module_from_name, push_variable,
push_module_name):
Deal with struct symbol_in_block from lookup functions. Remove
uses of block_found.
* eval.c (evaluate_subexp_standard): Update call to
cp_lookup_symbol_namespace.
* f-exp.y: Deal with struct symbol_in_block from lookup
functions. Remove uses of block_found.
(yylex): Likewise.
* gdbtypes.c (lookup_typename, lookup_struct, lookup_union,
lookup_enum, lookup_template_type, check_typedef): Deal with
struct symbol_in_block from lookup functions.
* guile/scm-frame.c (gdbscm_frame_read_var): Likewise.
* guile/scm-symbol.c (gdbscm_lookup_symbol): Likewise.
(gdbscm_lookup_global_symbol): Likewise.
* gnu-v3-abi.c (gnuv3_get_typeid_type): Likewise.
* go-exp.y: Likewise. Remove uses of block_found.
(package_name_p, classify_packaged_name, classify_name):
Likewise.
* infrun.c (insert_exception_resume_breakpoint): Likewise.
* jv-exp.y (push_variable): Likewise.
* jv-lang.c (java_lookup_class, get_java_object_type): Likewise.
* language.c (language_bool_type): Likewise.
* language.h (struct language_defn): Update
la_lookup_symbol_nonlocal to return a struct symbol_in_block
rather than a mere symbol.
* linespec.c (find_label_symbols): Deal with struct
symbol_in_block from lookup functions.
* m2-exp.y: Likewise. Remove uses of block_found.
(yylex): Likewise.
* mi/mi-cmd-stack.c (list_args_or_locals): Likewise.
* objc-lang.c (lookup_struct_typedef, find_imps): Likewise.
* p-exp.y: Likewise. Remove uses of block_found.
(yylex): Likewise.
* p-valprint.c (pascal_val_print): Likewise.
* parse.c (write_dollar_variable): Likewise. Remove uses of
block_found.
* parser-defs.h (struct symtoken): Turn the SYM field into a
struct symbol_in_block.
* printcmd.c (address_info): Deal with struct symbol_in_block
from lookup functions.
* python/py-frame.c (frapy_read_var): Likewise.
* python/py-symbol.c (gdbpy_lookup_symbol,
gdbpy_lookup_global_symbol): Likewise.
* skip.c (skip_function_command): Likewise.
* solib-darwin.c (darwin_lookup_lib_symbol): Return a struct
symbol_in_block instead of a mere symbol.
* solib-spu.c (spu_lookup_lib_symbol): Likewise.
* solib-svr4.c (elf_lookup_lib_symbol): Likewise.
* solib.c (solib_global_lookup): Likewise.
* solist.h (solib_global_lookup): Likewise.
(struct target_so_ops): Update lookup_lib_global_symbol to
return a struct symbol_in_block rather than a mere symbol.
* source.c (select_source_symtab): Deal with struct
symbol_in_block from lookup functions.
* stack.c (print_frame_args, iterate_over_block_arg_vars):
Likewise.
* symfile.c (set_initial_language): Likewise.
* symtab.c (SYMBOL_LOOKUP_FAILED): Turn into a struct
symbol_in_block.
(SYMBOL_LOOKUP_FAILED_P): New predicate as a macro.
(struct symbol_cache_slot): Turn the FOUND field into a struct
symbol_in_block.
(block_found): Remove.
(eq_symbol_entry): Update to deal with struct symbol_in_block in
cache slots.
(symbol_cache_lookup): Return a struct symbol_in_block rather
than a mere symbol.
(symbol_cache_mark_found): Add a BLOCK parameter to fill
appropriately the cache slots. Update callers.
(symbol_cache_dump): Update cache slots handling to the type
change.
(lookup_symbol_in_language, lookup_symbol, lookup_language_this,
lookup_symbol_aux, lookup_local_symbol,
lookup_symbol_in_objfile, lookup_global_symbol_from_objfile,
lookup_symbol_in_objfile_symtabs,
lookup_symbol_in_objfile_from_linkage_name,
lookup_symbol_via_quick_fns, basic_lookup_symbol_nonlocal,
lookup_symbol_in_static_block, lookup_static_symbol,
lookup_global_symbol):
Return a struct symbol_in_block rather than a mere symbol. Deal
with struct symbol_in_block from other lookup functions. Remove
uses of block_found.
(lookup_symbol_in_block): Remove uses of block_found.
(struct global_sym_lookup_data): Turn the RESULT field into a
struct symbol_in_block.
(lookup_symbol_global_iterator_cb): Update references to the
RESULT field.
(search_symbols): Deal with struct symbol_in_block from lookup
functions.
* symtab.h (struct symbol_in_block): New structure.
(block_found): Remove.
(lookup_symbol_in_language, lookup_symbol,
basic_lookup_symbol_nonlocal, lookup_symbol_in_static_block,
looku_static_symbol, lookup_global_symbol,
lookup_symbol_in_block, lookup_language_this,
lookup_global_symbol_from_objfile): Return a struct
symbol_in_block rather than just a mere symbol. Update comments
to remove mentions of block_found.
* valops.c (find_function_in_inferior,
value_struct_elt_for_reference, value_maybe_namespace_elt,
value_of_this): Deal with struct symbol_in_block from lookup
functions.
* value.c (value_static_field, value_fn_field): Likewise.
|
|
This is a patch I extracted from Pedro's C++ branch. It contains the
most trivial enum fixes, where an integer type/value was used instead
of the appropriate enum type/value. It fixes many C++ errors, since
in C++ you can't mix integers and enums implicitely.
Regardless of the C++ conversion, I think this is a good cleanup to make
use of the appropriate enum types.
Regression-tested on native x86_64.
gdb/ChangeLog:
* aarch64-linux-nat.c (aarch64_linux_can_use_hw_breakpoint): Use enum
type or value instead of integer.
(aarch64_linux_insert_watchpoint): Likewise.
(aarch64_linux_remove_watchpoint): Likewise.
* ada-lang.c (ada_op_print_tab): Likewise.
* amd64-linux-tdep.c (amd64_canonicalize_syscall): Likewise.
(amd64_linux_syscall_record_common): Likewise.
* arch-utils.c (target_byte_order_user): Likewise.
(default_byte_order): Likewise.
* arm-linux-nat.c (arm_linux_can_use_hw_breakpoint): Likewise.
(arm_linux_get_hwbp_type): Likewise.
(arm_linux_hw_watchpoint_initialize): Likewise.
(arm_linux_insert_watchpoint): Likewise.
* arm-linux-tdep.c (arm_canonicalize_syscall): Likewise.
(arm_linux_syscall_record): Likewise.
* breakpoint.c (update_watchpoint): Likewise.
(breakpoint_here_p): Likewise.
(bpstat_print): Likewise.
(enable_breakpoint_disp): Likewise.
* c-lang.c (c_op_print_tab): Likewise.
* cli/cli-decode.c (add_info_alias): Likewise.
* d-lang.c (d_op_print_tab): Likewise.
* eval.c (evaluate_subexp_standard): Likewise.
* f-exp.y (dot_ops): Likewise.
(f77_keywords): Likewise.
* f-lang.c (f_op_print_tab): Likewise.
* go-lang.c (go_op_print_tab): Likewise.
* guile/scm-breakpoint.c (gdbscm_make_breakpoint): Likewise.
* guile/scm-cmd.c (gdbscm_make_command): Likewise.
* guile/scm-param.c (gdbscm_make_parameter): Likewise.
* guile/scm-pretty-print.c (gdbscm_apply_val_pretty_printer): Likewise.
* guile/scm-string.c (struct scm_to_stringn_data): Likewise.
(struct scm_from_stringn_data): Likewise.
* i386-linux-tdep.c (i386_canonicalize_syscall): Likewise.
* ia64-linux-nat.c (ia64_linux_insert_watchpoint): Likewise.
(ia64_linux_remove_watchpoint): Likewise.
(ia64_linux_can_use_hw_breakpoint): Likewise.
* infrun.c (print_stop_event): Likewise.
* jv-lang.c (java_op_print_tab): Likewise.
* linux-nat.c (linux_proc_xfer_partial): Likewise.
* linux-nat.h (struct lwp_info): Likewise.
* linux-thread-db.c (enable_thread_event): Likewise.
* m2-lang.c (m2_op_print_tab): Likewise.
* mi/mi-cmd-stack.c (mi_cmd_stack_list_locals): Likewise.
(mi_cmd_stack_list_variables): Likewise.
* mi/mi-main.c (mi_cmd_trace_frame_collected): Likewise.
* mi/mi-out.c (mi_table_begin): Likewise.
(mi_table_header): Likewise.
* mips-linux-nat.c (mips_linux_can_use_hw_breakpoint): Likewise.
(mips_linux_insert_watchpoint): Likewise.
(mips_linux_remove_watchpoint): Likewise.
* nat/mips-linux-watch.c (mips_linux_watch_type_to_irw): Likewise.
* nat/mips-linux-watch.h (struct mips_watchpoint): Likewise.
(mips_linux_watch_type_to_irw): Likewise.
* nto-procfs.c (procfs_can_use_hw_breakpoint): Likewise.
(procfs_insert_hw_watchpoint): Likewise.
(procfs_remove_hw_watchpoint): Likewise.
(procfs_hw_watchpoint): Likewise.
(procfs_can_use_hw_breakpoint): Likewise.
(procfs_remove_hw_watchpoint): Likewise.
(procfs_insert_hw_watchpoint): Likewise.
* p-lang.c (pascal_op_print_tab): Likewise.
* ppc-linux-nat.c (ppc_linux_can_use_hw_breakpoint): Likewise.
* ppc-linux-tdep.c (ppu2spu_unwind_register): Likewise.
* ppc-sysv-tdep.c (get_decimal_float_return_value): Likewise.
* procfs.c (procfs_can_use_hw_breakpoint): Likewise.
(procfs_insert_watchpoint): Likewise.
(procfs_remove_watchpoint): Likewise.
* psymtab.c (recursively_search_psymtabs): Likewise.
* remote-m32r-sdi.c (m32r_can_use_hw_watchpoint): Likewise.
(m32r_insert_watchpoint): Likewise.
* remote-mips.c (mips_can_use_watchpoint): Likewise.
(mips_insert_watchpoint): Likewise.
(mips_remove_watchpoint): Likewise.
* remote.c (watchpoint_to_Z_packet): Likewise.
(remote_insert_watchpoint): Likewise.
(remote_remove_watchpoint): Likewise.
(remote_check_watch_resources): Likewise.
* s390-linux-nat.c (s390_insert_watchpoint): Likewise.
(s390_remove_watchpoint): Likewise.
(s390_can_use_hw_breakpoint): Likewise.
* s390-linux-tdep.c (s390_gdbarch_init): Likewise.
* spu-linux-nat.c (spu_can_use_hw_breakpoint): Likewise.
* target.h (struct target_ops): Likewise.
* tilegx-tdep.c (tilegx_analyze_prologue): Likewise.
* ui-out.c (struct ui_out_hdr): Likewise.
(append_header_to_list): Likewise.
(get_next_header): Likewise.
(verify_field): Likewise.
(ui_out_begin): Likewise.
(ui_out_field_int): Likewise.
(ui_out_field_fmt_int): Likewise.
(ui_out_field_skip): Likewise.
(ui_out_field_string): Likewise.
(ui_out_field_fmt): Likewise.
* varobj.c (new_variable): Likewise.
* x86-nat.c (x86_insert_watchpoint): Likewise.
(x86_remove_watchpoint): Likewise.
(x86_can_use_hw_breakpoint): Likewise.
* xtensa-tdep.h (struct gdbarch_tdep): Likewise.
* inflow.c (enum gdb_has_a_terminal_flag_enum): Add name to
previously anonymous enumeration type..
* linux-record.h (enum gdb_syscall): Add gdb_sys_no_syscall
value.
* target-debug.h (target_debug_print_enum_target_hw_bp_type): New.
(target_debug_print_enum_bptype): New.
* target-delegates.c: Regenerate.
|
|
I think that the CHECK_TYPEDEF macro is not necessary, and even a bit
annoying. It makes unclear the fact that the "type" variables gets
overwritten. It has actually bitten me a few times. I think the
following, explicit form, is better.
type = check_typedef (type);
This patches changes all instances of CHECK_TYPEDEF for an equivalent
call to check_typedef. The bulk of the change was done with this sed:
sed -i 's/CHECK_TYPEDEF (\([^)]*\));/\1 = check_typedef (\1);/' <file>.c
The ChangeLog was generated using David Malcom's generate_changelog.py.
I manually fixed those places where it gets the wrong function name,
hopefully all of them.
The patch was built-tested, and I ran a few smoke tests.
gdb/ChangeLog:
* gdbtypes.h (CHECK_TYPEDEF): Remove.
* aarch64-tdep.c (aarch64_return_in_memory): Replace CHECK_TYPEDEF
with check_typedef.
* ada-lang.c (decode_constrained_packed_array_type): Likewise.
(ada_array_length): Likewise.
(find_parallel_type_by_descriptive_type): Likewise.
(ada_check_typedef): Likewise.
* arm-tdep.c (arm_return_in_memory): Likewise.
* ax-gdb.c (gen_trace_static_fields): Likewise.
(gen_struct_ref_recursive): Likewise.
* c-exp.y (exp : SIZEOF '(' type ')' %prec UNARY): Likewise.
(variable: block COLONCOLON name): Likewise.
(qualified_name: TYPENAME COLONCOLON name): Likewise.
* c-lang.c (classify_type): Likewise.
* c-typeprint.c (c_print_type): Likewise.
(c_print_typedef): Likewise.
(c_type_print_base): Likewise.
* c-valprint.c (c_val_print): Likewise.
* compile/compile-c-types.c (convert_type): Likewise.
* compile/compile-object-load.c (get_out_value_type): Likewise.
* completer.c (add_struct_fields): Likewise.
(expression_completer): Likewise.
* cp-namespace.c (cp_find_type_baseclass_by_name): Likewise.
(cp_lookup_nested_symbol_1): Likewise.
(cp_lookup_nested_symbol): Likewise.
* cp-valprint.c (cp_print_value_fields): Likewise.
(cp_print_static_field): Likewise.
* d-valprint.c (d_val_print): Likewise.
* eval.c (evaluate_subexp_standard): Likewise.
(evaluate_subexp_for_sizeof): Likewise.
* f-exp.y (exp : SIZEOF '(' type ')' %prec UNARY): Likewise.
* f-typeprint.c (f_type_print_base): Likewise.
* f-valprint.c (f_val_print): Likewise.
* gdbtypes.c (get_discrete_bounds): Likewise.
(create_array_type_with_stride): Likewise.
(type_name_no_tag_or_error): Likewise.
(lookup_struct_elt_type): Likewise.
(get_unsigned_type_max): Likewise.
(internal_type_vptr_fieldno): Likewise.
(set_type_vptr_fieldno): Likewise.
(internal_type_vptr_basetype): Likewise.
(set_type_vptr_basetype): Likewise.
(get_vptr_fieldno): Likewise.
(is_integral_type): Likewise.
(is_scalar_type): Likewise.
(is_scalar_type_recursive): Likewise.
(distance_to_ancestor): Likewise.
(is_unique_ancestor_worker): Likewise.
(check_types_equal): Likewise.
* gnu-v2-abi.c (gnuv2_value_rtti_type): Likewise.
* gnu-v3-abi.c (gnuv3_dynamic_class): Likewise.
(gnuv3_get_vtable): Likewise.
(gnuv3_pass_by_reference): Likewise.
* go-exp.y (exp : SIZEOF_KEYWORD '(' type ')' %prec UNARY): Likewise.
* go-lang.c (gccgo_string_p): Likewise.
(go_classify_struct_type): Likewise.
* go-typeprint.c (go_print_type): Likewise.
* go-valprint.c (go_val_print): Likewise.
* guile/scm-math.c (vlscm_binop): Likewise.
* guile/scm-value.c (gdbscm_value_dynamic_type): Likewise.
(gdbscm_value_to_bytevector): Likewise.
(gdbscm_value_to_bool): Likewise.
(gdbscm_value_to_integer): Likewise.
(gdbscm_value_to_real): Likewise.
* infcall.c (call_function_by_hand_dummy): Likewise.
* infcmd.c (get_return_value): Likewise.
* jv-lang.c (is_object_type): Likewise.
* jv-typeprint.c (java_type_print_base): Likewise.
* jv-valprint.c (java_print_value_fields): Likewise.
(java_val_print): Likewise.
* linespec.c (find_methods): Likewise.
(collect_one_symbol): Likewise.
* m2-typeprint.c (m2_print_type): Likewise.
(m2_print_typedef): Likewise.
(m2_get_discrete_bounds): Likewise.
* m2-valprint.c (m2_print_long_set): Likewise.
(m2_print_unbounded_array): Likewise.
(m2_print_array_contents): Likewise.
(m2_val_print): Likewise.
* opencl-lang.c (opencl_print_type): Likewise.
* p-exp.y (exp : SIZEOF '(' type ')' %prec UNARY): Likewise.
* p-typeprint.c (pascal_print_type): Likewise.
(pascal_print_typedef): Likewise.
(pascal_type_print_base): Likewise.
* p-valprint.c (pascal_val_print): Likewise.
(pascal_object_print_value_fields): Likewise.
(pascal_object_print_static_field): Likewise.
* python/py-type.c (typy_fields_items): Likewise.
(typy_get_composite): Likewise.
* python/py-value.c (valpy_get_dynamic_type): Likewise.
(valpy_binop): Likewise.
(valpy_long): Likewise.
(valpy_float): Likewise.
* stack.c (return_command): Likewise.
* symtab.c (check_field): Likewise.
(lookup_symbol_aux): Likewise.
* tic6x-tdep.c (tic6x_return_value): Likewise.
* typeprint.c (print_type_scalar): Likewise.
* valarith.c (value_vector_widen): Likewise.
* valops.c (value_cast): Likewise.
(value_assign): Likewise.
(do_search_struct_field): Likewise.
(search_struct_method): Likewise.
(find_method_list): Likewise.
* valprint.c (val_print_scalar_type_p): Likewise.
(valprint_check_validity): Likewise.
(generic_val_print): Likewise.
* value.c (unpack_double): Likewise.
(value_primitive_field): Likewise.
(unpack_bits_as_long): Likewise.
|
|
gdb/ChangeLog:
PR python/18285
* NEWS: Document new gdb.XMethodWorker.get_result_type method.
* eval.c (evaluate_subexp_standard) <OP_FUNCALL>: Handle
EVAL_AVOID_SIDE_EFFECTS for xmethods.
* extension-priv.h (struct extension_language_ops)
<get_xmethod_result_type>: New member.
* extension.c (get_xmethod_result_type): New function.
* extension.h (get_xmethod_result_type): Declare.
* python/py-xmethods.c (get_result_type_method_name): New static
global.
(py_get_result_type_method_name): Ditto.
(gdbpy_get_xmethod_result_type): New function.
(gdbpy_initialize_xmethods): Initialize py_get_result_type_method_name.
* python/python-internal.h (gdbpy_get_xmethod_result_type): Declare.
* python/python.c (python_extension_ops): Add
gdbpy_get_xmethod_result_type.
* python/lib/gdb/xmethod.py (XMethodWorker): Add get_result_type.
* valarith.c (value_x_binop): Handle EVAL_AVOID_SIDE_EFFECTS for
xmethods.
(value_x_unop): Ditto.
* value.c (result_type_of_xmethod): New function.
* value.h (result_type_of_xmethod): Declare.
gdb/testsuite/ChangeLog:
* gdb.python/py-xmethods.exp: Add ptype tests.
* gdb.python/py-xmethods.py (E_method_char_worker): Add
get_result_type method.
gdb/doc/ChangeLog:
* python.texi (Xmethod API) <gdb.XMethodWorker.get_result_type>:
Document.
(Writing an Xmethod): Add get_result_type to example.
|
|
This patch splits the TRY_CATCH macro into three, so that we go from
this:
~~~
volatile gdb_exception ex;
TRY_CATCH (ex, RETURN_MASK_ERROR)
{
}
if (ex.reason < 0)
{
}
~~~
to this:
~~~
TRY
{
}
CATCH (ex, RETURN_MASK_ERROR)
{
}
END_CATCH
~~~
Thus, we'll be getting rid of the local volatile exception object, and
declaring the caught exception in the catch block.
This allows reimplementing TRY/CATCH in terms of C++ exceptions when
building in C++ mode, while still allowing to build GDB in C mode
(using setjmp/longjmp), as a transition step.
TBC, after this patch, is it _not_ valid to have code between the TRY
and the CATCH blocks, like:
TRY
{
}
// some code here.
CATCH (ex, RETURN_MASK_ERROR)
{
}
END_CATCH
Just like it isn't valid to do that with C++'s native try/catch.
By switching to creating the exception object inside the CATCH block
scope, we can get rid of all the explicitly allocated volatile
exception objects all over the tree, and map the CATCH block more
directly to C++'s catch blocks.
The majority of the TRY_CATCH -> TRY+CATCH+END_CATCH conversion was
done with a script, rerun from scratch at every rebase, no manual
editing involved. After the mechanical conversion, a few places
needed manual intervention, to fix preexisting cases where we were
using the exception object outside of the TRY_CATCH block, and cases
where we were using "else" after a 'if (ex.reason) < 0)' [a CATCH
after this patch]. The result was folded into this patch so that GDB
still builds at each incremental step.
END_CATCH is necessary for two reasons:
First, because we name the exception object in the CATCH block, which
requires creating a scope, which in turn must be closed somewhere.
Declaring the exception variable in the initializer field of a for
block, like:
#define CATCH(EXCEPTION, mask) \
for (struct gdb_exception EXCEPTION; \
exceptions_state_mc_catch (&EXCEPTION, MASK); \
EXCEPTION = exception_none)
would avoid needing END_CATCH, but alas, in C mode, we build with C90,
which doesn't allow mixed declarations and code.
Second, because when TRY/CATCH are wired to real C++ try/catch, as
long as we need to handle cleanup chains, even if there's no CATCH
block that wants to catch the exception, we need for stop at every
frame in the unwind chain and run cleanups, then rethrow. That will
be done in END_CATCH.
After we require C++, we'll still need TRY/CATCH/END_CATCH until
cleanups are completely phased out -- TRY/CATCH in C++ mode will
save/restore the current cleanup chain, like in C mode, and END_CATCH
catches otherwise uncaugh exceptions, runs cleanups and rethrows, so
that C++ cleanups and exceptions can coexist.
IMO, this still makes the TRY/CATCH code look a bit more like a
newcomer would expect, so IMO worth it even if we weren't considering
C++.
gdb/ChangeLog.
2015-03-07 Pedro Alves <palves@redhat.com>
* common/common-exceptions.c (struct catcher) <exception>: No
longer a pointer to volatile exception. Now an exception value.
<mask>: Delete field.
(exceptions_state_mc_init): Remove all parameters. Adjust.
(exceptions_state_mc): No longer pop the catcher here.
(exceptions_state_mc_catch): New function.
(throw_exception): Adjust.
* common/common-exceptions.h (exceptions_state_mc_init): Remove
all parameters.
(exceptions_state_mc_catch): Declare.
(TRY_CATCH): Rename to ...
(TRY): ... this. Remove EXCEPTION and MASK parameters.
(CATCH, END_CATCH): New.
All callers adjusted.
gdb/gdbserver/ChangeLog:
2015-03-07 Pedro Alves <palves@redhat.com>
Adjust all callers of TRY_CATCH to use TRY/CATCH/END_CATCH
instead.
|
|
accordingly.
Every type has to pay the price in memory usage for their presence.
The proper place for them is in the type_specific field which exists
for this purpose.
gdb/ChangeLog:
* dwarf2read.c (process_structure_scope): Update setting of
TYPE_VPTR_BASETYPE, TYPE_VPTR_FIELDNO.
* gdbtypes.c (internal_type_vptr_fieldno): New function.
(set_type_vptr_fieldno): New function.
(internal_type_vptr_basetype): New function.
(set_type_vptr_basetype): New function.
(get_vptr_fieldno): Update setting of TYPE_VPTR_FIELDNO,
TYPE_VPTR_BASETYPE.
(allocate_cplus_struct_type): Initialize vptr_fieldno.
(recursive_dump_type): Printing of vptr_fieldno, vptr_basetype ...
(print_cplus_stuff): ... moved here.
(copy_type_recursive): Don't copy TYPE_VPTR_BASETYPE.
* gdbtypes.h (struct main_type): Members vptr_fieldno, vptr_basetype
moved to ...
(struct cplus_struct_type): ... here. All uses updated.
(TYPE_VPTR_FIELDNO, TYPE_VPTR_BASETYPE): Rewrite.
(internal_type_vptr_fieldno, set_type_vptr_fieldno): Declare.
(internal_type_vptr_basetype, set_type_vptr_basetype): Declare.
* stabsread.c (read_tilde_fields): Update setting of
TYPE_VPTR_FIELDNO, TYPE_VPTR_BASETYPE.
gdb/testsuite/ChangeLog:
* gdb.base/maint.exp <maint print type argc>: Update expected output.
|
|
gdb/ChangeLog:
* gdbtypes.h (TYPE_SELF_TYPE): Renamed from TYPE_DOMAIN_TYPE.
All uses updated.
|
|
gdb/ChangeLog:
Update year range in copyright notice of all files.
|
|
This fixes a regression introduced by 6c659fc2c7cd2da6d2b9a3d7c38597ad3821832a.
gdb/ChangeLog:
* eval.c (evaluate_subexp): Check that thread stack temporaries
are not already enabled before enabling them.
|
|
gdb/ChangeLog:
* eval.c: Include gdbthread.h.
(evaluate_subexp): Enable thread stack temporaries before
evaluating a complete expression and clean them up after the
evaluation is complete.
* gdbthread.h: Include common/vec.h.
(value_ptr): New typedef.
(VEC (value_ptr)): New vector type.
(value_vec): New typedef.
(struct thread_info): Add new fields stack_temporaries_enabled
and stack_temporaries.
(enable_thread_stack_temporaries)
(thread_stack_temporaries_enabled_p, push_thread_stack_temporary)
(get_last_thread_stack_temporary)
(value_in_thread_stack_temporaries): Declare.
* gdbtypes.c (class_or_union_p): New function.
* gdbtypes.h (class_or_union_p): Declare.
* infcall.c (call_function_by_hand): Store return values of class
type as temporaries on stack.
* thread.c (enable_thread_stack_temporaries): New function.
(thread_stack_temporaries_enabled_p, push_thread_stack_temporary)
(get_last_thread_stack_temporary): Likewise.
(value_in_thread_stack_temporaries): Likewise.
* value.c (value_force_lval): New function.
* value.h (value_force_lval): Declare.
gdb/testsuite/ChangeLog:
* gdb.cp/chained-calls.cc: New file.
* gdb.cp/chained-calls.exp: New file.
* gdb.cp/smartp.exp: Remove KFAIL for "p c2->inta".
|
|
A recent change to eval.c triggered a GCC bug that causes a false positive
"may be used uninitialized" warning in evaluate_subexp_standard. This seems
to be triggered by a specific CFG constructed via setjmp and gotos.
While the GCC bug is in the process of being fixed, there are released
compiler versions (in particular GCC 4.9) in the field that show this
problem. In order to allow compiling GDB with one of those compilers,
this commit slightly reworks the CFG (in an equivalent way) of the
affected function, so that the GCC bug is no longer triggered.
gdb/ChangeLog:
* eval.c (evaluate_subexp_standard): Work around GCC bug 63748.
|
|
gdb/ChangeLog:
* gdbtypes.h (TYPE_CODE_CLASS): Delete. All uses changed to use
TYPE_CODE_STRUCT.
|
|
When evaluating method calls under EVAL_SKIP, the "object" and the
arguments to the method should also be evaluated under EVAL_SKIP,
instead of skipping to evaluate them as was being done previously.
gdb/ChangeLog:
PR c++/17494
* eval.c (evaluate_subexp_standard): Evaluate the "object" and
the method args also under EVAL_SKIP when evaluating method
calls under EVAL_SKIP.
gdb/testsuite/ChangeLog:
PR c++/17494
* gdb.cp/pr17494.cc: New file.
* gdb.cp/pr17494.exp: New file.
|
|
defs.h includes utils.h, and utils.h includes exceptions.h. All GDB
.c files include defs.h as their first line, so no file other than
utils.h needs to include exceptions.h. This commit removes all such
inclusions.
gdb/ChangeLog:
* ada-lang.c: Do not include exceptions.h.
* ada-valprint.c: Likewise.
* amd64-tdep.c: Likewise.
* auto-load.c: Likewise.
* block.c: Likewise.
* break-catch-throw.c: Likewise.
* breakpoint.c: Likewise.
* btrace.c: Likewise.
* c-lang.c: Likewise.
* cli/cli-cmds.c: Likewise.
* cli/cli-interp.c: Likewise.
* cli/cli-script.c: Likewise.
* completer.c: Likewise.
* corefile.c: Likewise.
* corelow.c: Likewise.
* cp-abi.c: Likewise.
* cp-support.c: Likewise.
* cp-valprint.c: Likewise.
* darwin-nat.c: Likewise.
* dwarf2-frame-tailcall.c: Likewise.
* dwarf2-frame.c: Likewise.
* dwarf2loc.c: Likewise.
* dwarf2read.c: Likewise.
* eval.c: Likewise.
* event-loop.c: Likewise.
* event-top.c: Likewise.
* f-valprint.c: Likewise.
* frame-unwind.c: Likewise.
* frame.c: Likewise.
* gdbtypes.c: Likewise.
* gnu-v2-abi.c: Likewise.
* gnu-v3-abi.c: Likewise.
* guile/scm-auto-load.c: Likewise.
* guile/scm-breakpoint.c: Likewise.
* guile/scm-cmd.c: Likewise.
* guile/scm-frame.c: Likewise.
* guile/scm-lazy-string.c: Likewise.
* guile/scm-param.c: Likewise.
* guile/scm-symbol.c: Likewise.
* guile/scm-type.c: Likewise.
* hppa-hpux-tdep.c: Likewise.
* i386-tdep.c: Likewise.
* inf-loop.c: Likewise.
* infcall.c: Likewise.
* infcmd.c: Likewise.
* infrun.c: Likewise.
* interps.c: Likewise.
* interps.h: Likewise.
* jit.c: Likewise.
* linespec.c: Likewise.
* linux-nat.c: Likewise.
* linux-thread-db.c: Likewise.
* m32r-rom.c: Likewise.
* main.c: Likewise.
* memory-map.c: Likewise.
* mi/mi-cmd-break.c: Likewise.
* mi/mi-cmd-stack.c: Likewise.
* mi/mi-interp.c: Likewise.
* mi/mi-main.c: Likewise.
* monitor.c: Likewise.
* nto-procfs.c: Likewise.
* objc-lang.c: Likewise.
* p-valprint.c: Likewise.
* parse.c: Likewise.
* ppc-linux-tdep.c: Likewise.
* printcmd.c: Likewise.
* probe.c: Likewise.
* python/py-auto-load.c: Likewise.
* python/py-breakpoint.c: Likewise.
* python/py-cmd.c: Likewise.
* python/py-finishbreakpoint.c: Likewise.
* python/py-frame.c: Likewise.
* python/py-framefilter.c: Likewise.
* python/py-function.c: Likewise.
* python/py-gdb-readline.c: Likewise.
* python/py-inferior.c: Likewise.
* python/py-infthread.c: Likewise.
* python/py-lazy-string.c: Likewise.
* python/py-linetable.c: Likewise.
* python/py-param.c: Likewise.
* python/py-prettyprint.c: Likewise.
* python/py-symbol.c: Likewise.
* python/py-type.c: Likewise.
* python/py-value.c: Likewise.
* python/python-internal.h: Likewise.
* python/python.c: Likewise.
* record-btrace.c: Likewise.
* record-full.c: Likewise.
* regcache.c: Likewise.
* remote-fileio.c: Likewise.
* remote-mips.c: Likewise.
* remote.c: Likewise.
* rs6000-aix-tdep.c: Likewise.
* rs6000-nat.c: Likewise.
* skip.c: Likewise.
* solib-darwin.c: Likewise.
* solib-dsbt.c: Likewise.
* solib-frv.c: Likewise.
* solib-ia64-hpux.c: Likewise.
* solib-spu.c: Likewise.
* solib-svr4.c: Likewise.
* solib.c: Likewise.
* spu-tdep.c: Likewise.
* stack.c: Likewise.
* stap-probe.c: Likewise.
* symfile-mem.c: Likewise.
* symmisc.c: Likewise.
* target.c: Likewise.
* thread.c: Likewise.
* top.c: Likewise.
* tracepoint.c: Likewise.
* tui/tui-interp.c: Likewise.
* typeprint.c: Likewise.
* utils.c: Likewise.
* valarith.c: Likewise.
* valops.c: Likewise.
* valprint.c: Likewise.
* value.c: Likewise.
* varobj.c: Likewise.
* windows-nat.c: Likewise.
* xml-support.c: Likewise.
|
|
This is a fix for PR c++/17132.
If this new argument is set to EVAL_AVOID_SIDE_EFFECTS, then the object's
memory will not be read while picking the best overload match.
gdb/
* eval.c: Update all calls to find_overload_match.
* valarith.c: Likewise.
(value_user_defined_cpp_op, value_user_defined_op): New
argument NOSIDE. Update all callers.
* valops.c (find_overload_match): New argument NOSIDE.
* value.h (find_overload_match): Update signature.
gdb/testsuite
* gdb.cp/pr17132.cc: New file.
* gdb.cp/pr17132.exp: New file.
|
|
This commit includes string.h in common-defs.h and removes all other
inclusions.
gdb/
2014-08-07 Gary Benson <gbenson@redhat.com>
* common/common-defs.h: Include string.h.
* aarch64-tdep.c: Do not include string.h.
* ada-exp.y: Likewise.
* ada-lang.c: Likewise.
* ada-lex.l: Likewise.
* ada-typeprint.c: Likewise.
* ada-valprint.c: Likewise.
* aix-thread.c: Likewise.
* alpha-linux-tdep.c: Likewise.
* alpha-mdebug-tdep.c: Likewise.
* alpha-nat.c: Likewise.
* alpha-osf1-tdep.c: Likewise.
* alpha-tdep.c: Likewise.
* alphanbsd-tdep.c: Likewise.
* amd64-dicos-tdep.c: Likewise.
* amd64-linux-tdep.c: Likewise.
* amd64-nat.c: Likewise.
* amd64-sol2-tdep.c: Likewise.
* amd64fbsd-tdep.c: Likewise.
* amd64obsd-tdep.c: Likewise.
* arch-utils.c: Likewise.
* arm-linux-nat.c: Likewise.
* arm-linux-tdep.c: Likewise.
* arm-tdep.c: Likewise.
* arm-wince-tdep.c: Likewise.
* armbsd-tdep.c: Likewise.
* armnbsd-nat.c: Likewise.
* armnbsd-tdep.c: Likewise.
* armobsd-tdep.c: Likewise.
* avr-tdep.c: Likewise.
* ax-gdb.c: Likewise.
* ax-general.c: Likewise.
* bcache.c: Likewise.
* bfin-tdep.c: Likewise.
* breakpoint.c: Likewise.
* build-id.c: Likewise.
* buildsym.c: Likewise.
* c-exp.y: Likewise.
* c-lang.c: Likewise.
* c-typeprint.c: Likewise.
* c-valprint.c: Likewise.
* charset.c: Likewise.
* cli-out.c: Likewise.
* cli/cli-cmds.c: Likewise.
* cli/cli-decode.c: Likewise.
* cli/cli-dump.c: Likewise.
* cli/cli-interp.c: Likewise.
* cli/cli-logging.c: Likewise.
* cli/cli-script.c: Likewise.
* cli/cli-setshow.c: Likewise.
* cli/cli-utils.c: Likewise.
* coffread.c: Likewise.
* common/agent.c: Likewise.
* common/buffer.c: Likewise.
* common/buffer.h: Likewise.
* common/common-utils.c: Likewise.
* common/filestuff.c: Likewise.
* common/filestuff.c: Likewise.
* common/format.c: Likewise.
* common/print-utils.c: Likewise.
* common/rsp-low.c: Likewise.
* common/signals.c: Likewise.
* common/vec.h: Likewise.
* common/xml-utils.c: Likewise.
* core-regset.c: Likewise.
* corefile.c: Likewise.
* corelow.c: Likewise.
* cp-abi.c: Likewise.
* cp-name-parser.y: Likewise.
* cp-support.c: Likewise.
* cp-valprint.c: Likewise.
* cris-tdep.c: Likewise.
* d-exp.y: Likewise.
* darwin-nat.c: Likewise.
* dbxread.c: Likewise.
* dcache.c: Likewise.
* demangle.c: Likewise.
* dicos-tdep.c: Likewise.
* disasm.c: Likewise.
* doublest.c: Likewise.
* dsrec.c: Likewise.
* dummy-frame.c: Likewise.
* dwarf2-frame.c: Likewise.
* dwarf2loc.c: Likewise.
* dwarf2read.c: Likewise.
* elfread.c: Likewise.
* environ.c: Likewise.
* eval.c: Likewise.
* event-loop.c: Likewise.
* exceptions.c: Likewise.
* exec.c: Likewise.
* expprint.c: Likewise.
* f-exp.y: Likewise.
* f-lang.c: Likewise.
* f-typeprint.c: Likewise.
* f-valprint.c: Likewise.
* fbsd-nat.c: Likewise.
* findcmd.c: Likewise.
* findvar.c: Likewise.
* fork-child.c: Likewise.
* frame.c: Likewise.
* frv-linux-tdep.c: Likewise.
* frv-tdep.c: Likewise.
* gdb.c: Likewise.
* gdb_bfd.c: Likewise.
* gdbarch.c: Likewise.
* gdbarch.sh: Likewise.
* gdbtypes.c: Likewise.
* gnu-nat.c: Likewise.
* gnu-v2-abi.c: Likewise.
* gnu-v3-abi.c: Likewise.
* go-exp.y: Likewise.
* go-lang.c: Likewise.
* go32-nat.c: Likewise.
* guile/guile.c: Likewise.
* guile/scm-auto-load.c: Likewise.
* hppa-hpux-tdep.c: Likewise.
* hppa-linux-nat.c: Likewise.
* hppanbsd-tdep.c: Likewise.
* hppaobsd-tdep.c: Likewise.
* i386-cygwin-tdep.c: Likewise.
* i386-dicos-tdep.c: Likewise.
* i386-linux-tdep.c: Likewise.
* i386-nto-tdep.c: Likewise.
* i386-sol2-tdep.c: Likewise.
* i386-tdep.c: Likewise.
* i386bsd-tdep.c: Likewise.
* i386gnu-nat.c: Likewise.
* i386nbsd-tdep.c: Likewise.
* i386obsd-tdep.c: Likewise.
* i387-tdep.c: Likewise.
* ia64-libunwind-tdep.c: Likewise.
* ia64-linux-nat.c: Likewise.
* inf-child.c: Likewise.
* inf-ptrace.c: Likewise.
* inf-ttrace.c: Likewise.
* infcall.c: Likewise.
* infcmd.c: Likewise.
* inflow.c: Likewise.
* infrun.c: Likewise.
* interps.c: Likewise.
* iq2000-tdep.c: Likewise.
* irix5-nat.c: Likewise.
* jv-exp.y: Likewise.
* jv-lang.c: Likewise.
* jv-typeprint.c: Likewise.
* jv-valprint.c: Likewise.
* language.c: Likewise.
* linux-fork.c: Likewise.
* linux-nat.c: Likewise.
* lm32-tdep.c: Likewise.
* m2-exp.y: Likewise.
* m2-typeprint.c: Likewise.
* m32c-tdep.c: Likewise.
* m32r-linux-nat.c: Likewise.
* m32r-linux-tdep.c: Likewise.
* m32r-rom.c: Likewise.
* m32r-tdep.c: Likewise.
* m68hc11-tdep.c: Likewise.
* m68k-tdep.c: Likewise.
* m68kbsd-tdep.c: Likewise.
* m68klinux-nat.c: Likewise.
* m68klinux-tdep.c: Likewise.
* m88k-tdep.c: Likewise.
* machoread.c: Likewise.
* macrocmd.c: Likewise.
* main.c: Likewise.
* mdebugread.c: Likewise.
* mem-break.c: Likewise.
* memattr.c: Likewise.
* memory-map.c: Likewise.
* mep-tdep.c: Likewise.
* mi/mi-cmd-break.c: Likewise.
* mi/mi-cmd-disas.c: Likewise.
* mi/mi-cmd-env.c: Likewise.
* mi/mi-cmd-stack.c: Likewise.
* mi/mi-cmd-var.c: Likewise.
* mi/mi-cmds.c: Likewise.
* mi/mi-console.c: Likewise.
* mi/mi-getopt.c: Likewise.
* mi/mi-interp.c: Likewise.
* mi/mi-main.c: Likewise.
* mi/mi-parse.c: Likewise.
* microblaze-rom.c: Likewise.
* microblaze-tdep.c: Likewise.
* mingw-hdep.c: Likewise.
* minidebug.c: Likewise.
* minsyms.c: Likewise.
* mips-irix-tdep.c: Likewise.
* mips-linux-tdep.c: Likewise.
* mips-tdep.c: Likewise.
* mips64obsd-tdep.c: Likewise.
* mipsnbsd-tdep.c: Likewise.
* mipsread.c: Likewise.
* mn10300-linux-tdep.c: Likewise.
* mn10300-tdep.c: Likewise.
* monitor.c: Likewise.
* moxie-tdep.c: Likewise.
* mt-tdep.c: Likewise.
* nat/linux-btrace.c: Likewise.
* nat/linux-osdata.c: Likewise.
* nat/linux-procfs.c: Likewise.
* nat/linux-ptrace.c: Likewise.
* nat/linux-waitpid.c: Likewise.
* nbsd-tdep.c: Likewise.
* nios2-linux-tdep.c: Likewise.
* nto-procfs.c: Likewise.
* nto-tdep.c: Likewise.
* objc-lang.c: Likewise.
* objfiles.c: Likewise.
* opencl-lang.c: Likewise.
* osabi.c: Likewise.
* osdata.c: Likewise.
* p-exp.y: Likewise.
* p-lang.c: Likewise.
* p-typeprint.c: Likewise.
* parse.c: Likewise.
* posix-hdep.c: Likewise.
* ppc-linux-nat.c: Likewise.
* ppc-sysv-tdep.c: Likewise.
* ppcfbsd-tdep.c: Likewise.
* ppcnbsd-tdep.c: Likewise.
* ppcobsd-tdep.c: Likewise.
* printcmd.c: Likewise.
* procfs.c: Likewise.
* prologue-value.c: Likewise.
* python/py-auto-load.c: Likewise.
* python/py-gdb-readline.c: Likewise.
* ravenscar-thread.c: Likewise.
* regcache.c: Likewise.
* registry.c: Likewise.
* remote-fileio.c: Likewise.
* remote-m32r-sdi.c: Likewise.
* remote-mips.c: Likewise.
* remote-notif.c: Likewise.
* remote-sim.c: Likewise.
* remote.c: Likewise.
* reverse.c: Likewise.
* rs6000-aix-tdep.c: Likewise.
* ser-base.c: Likewise.
* ser-go32.c: Likewise.
* ser-mingw.c: Likewise.
* ser-pipe.c: Likewise.
* ser-tcp.c: Likewise.
* ser-unix.c: Likewise.
* serial.c: Likewise.
* sh-tdep.c: Likewise.
* sh64-tdep.c: Likewise.
* shnbsd-tdep.c: Likewise.
* skip.c: Likewise.
* sol-thread.c: Likewise.
* solib-dsbt.c: Likewise.
* solib-frv.c: Likewise.
* solib-osf.c: Likewise.
* solib-som.c: Likewise.
* solib-spu.c: Likewise.
* solib-target.c: Likewise.
* solib.c: Likewise.
* somread.c: Likewise.
* source.c: Likewise.
* sparc-nat.c: Likewise.
* sparc-sol2-tdep.c: Likewise.
* sparc-tdep.c: Likewise.
* sparc64-tdep.c: Likewise.
* sparc64fbsd-tdep.c: Likewise.
* sparc64nbsd-tdep.c: Likewise.
* sparcnbsd-tdep.c: Likewise.
* spu-linux-nat.c: Likewise.
* spu-multiarch.c: Likewise.
* spu-tdep.c: Likewise.
* stabsread.c: Likewise.
* stack.c: Likewise.
* std-regs.c: Likewise.
* symfile.c: Likewise.
* symmisc.c: Likewise.
* symtab.c: Likewise.
* target.c: Likewise.
* thread.c: Likewise.
* tilegx-linux-nat.c: Likewise.
* tilegx-tdep.c: Likewise.
* top.c: Likewise.
* tracepoint.c: Likewise.
* tui/tui-command.c: Likewise.
* tui/tui-data.c: Likewise.
* tui/tui-disasm.c: Likewise.
* tui/tui-file.c: Likewise.
* tui/tui-layout.c: Likewise.
* tui/tui-out.c: Likewise.
* tui/tui-regs.c: Likewise.
* tui/tui-source.c: Likewise.
* tui/tui-stack.c: Likewise.
* tui/tui-win.c: Likewise.
* tui/tui-windata.c: Likewise.
* tui/tui-winsource.c: Likewise.
* typeprint.c: Likewise.
* ui-file.c: Likewise.
* ui-out.c: Likewise.
* user-regs.c: Likewise.
* utils.c: Likewise.
* v850-tdep.c: Likewise.
* valarith.c: Likewise.
* valops.c: Likewise.
* valprint.c: Likewise.
* value.c: Likewise.
* varobj.c: Likewise.
* vax-tdep.c: Likewise.
* vaxnbsd-tdep.c: Likewise.
* vaxobsd-tdep.c: Likewise.
* windows-nat.c: Likewise.
* xcoffread.c: Likewise.
* xml-support.c: Likewise.
* xstormy16-tdep.c: Likewise.
* xtensa-linux-nat.c: Likewise.
gdb/gdbserver/
2014-08-07 Gary Benson <gbenson@redhat.com>
* server.h: Do not include string.h.
* event-loop.c: Likewise.
* linux-low.c: Likewise.
* regcache.c: Likewise.
* remote-utils.c: Likewise.
* spu-low.c: Likewise.
* utils.c: Likewise.
|
|
This commit includes gdb_assert.h in common-defs.h and removes all
other inclusions.
gdb/
2014-08-07 Gary Benson <gbenson@redhat.com>
* common/common-defs.h: Include gdb_assert.h.
* aarch64-tdep.c: Do not include gdb_assert.h.
* addrmap.c: Likewise.
* aix-thread.c: Likewise.
* alpha-linux-tdep.c: Likewise.
* alpha-mdebug-tdep.c: Likewise.
* alphanbsd-tdep.c: Likewise.
* amd64-nat.c: Likewise.
* amd64-tdep.c: Likewise.
* amd64bsd-nat.c: Likewise.
* amd64fbsd-nat.c: Likewise.
* amd64fbsd-tdep.c: Likewise.
* amd64nbsd-nat.c: Likewise.
* amd64nbsd-tdep.c: Likewise.
* amd64obsd-nat.c: Likewise.
* amd64obsd-tdep.c: Likewise.
* arch-utils.c: Likewise.
* arm-tdep.c: Likewise.
* armbsd-tdep.c: Likewise.
* auxv.c: Likewise.
* bcache.c: Likewise.
* bfin-tdep.c: Likewise.
* blockframe.c: Likewise.
* breakpoint.c: Likewise.
* bsd-kvm.c: Likewise.
* bsd-uthread.c: Likewise.
* buildsym.c: Likewise.
* c-exp.y: Likewise.
* c-lang.c: Likewise.
* charset.c: Likewise.
* cleanups.c: Likewise.
* cli-out.c: Likewise.
* cli/cli-decode.c: Likewise.
* cli/cli-dump.c: Likewise.
* cli/cli-logging.c: Likewise.
* cli/cli-script.c: Likewise.
* cli/cli-utils.c: Likewise.
* coffread.c: Likewise.
* common/common-utils.c: Likewise.
* common/queue.h: Likewise.
* common/signals.c: Likewise.
* common/vec.h: Likewise.
* complaints.c: Likewise.
* completer.c: Likewise.
* corelow.c: Likewise.
* cp-abi.c: Likewise.
* cp-name-parser.y: Likewise.
* cp-namespace.c: Likewise.
* cp-support.c: Likewise.
* cris-tdep.c: Likewise.
* dbxread.c: Likewise.
* dictionary.c: Likewise.
* doublest.c: Likewise.
* dsrec.c: Likewise.
* dummy-frame.c: Likewise.
* dwarf2-frame-tailcall.c: Likewise.
* dwarf2-frame.c: Likewise.
* dwarf2expr.c: Likewise.
* dwarf2loc.c: Likewise.
* dwarf2read.c: Likewise.
* eval.c: Likewise.
* event-loop.c: Likewise.
* exceptions.c: Likewise.
* expprint.c: Likewise.
* f-valprint.c: Likewise.
* fbsd-nat.c: Likewise.
* findvar.c: Likewise.
* frame-unwind.c: Likewise.
* frame.c: Likewise.
* frv-tdep.c: Likewise.
* gcore.c: Likewise.
* gdb-dlfcn.c: Likewise.
* gdb_bfd.c: Likewise.
* gdbarch.c: Likewise.
* gdbarch.sh: Likewise.
* gdbtypes.c: Likewise.
* gnu-nat.c: Likewise.
* gnu-v3-abi.c: Likewise.
* go-lang.c: Likewise.
* guile/scm-exception.c: Likewise.
* guile/scm-gsmob.c: Likewise.
* guile/scm-lazy-string.c: Likewise.
* guile/scm-math.c: Likewise.
* guile/scm-pretty-print.c: Likewise.
* guile/scm-safe-call.c: Likewise.
* guile/scm-utils.c: Likewise.
* guile/scm-value.c: Likewise.
* h8300-tdep.c: Likewise.
* hppa-hpux-nat.c: Likewise.
* hppa-tdep.c: Likewise.
* hppanbsd-tdep.c: Likewise.
* hppaobsd-tdep.c: Likewise.
* i386-darwin-nat.c: Likewise.
* i386-darwin-tdep.c: Likewise.
* i386-nto-tdep.c: Likewise.
* i386-tdep.c: Likewise.
* i386bsd-nat.c: Likewise.
* i386fbsd-tdep.c: Likewise.
* i386gnu-nat.c: Likewise.
* i386nbsd-tdep.c: Likewise.
* i386obsd-tdep.c: Likewise.
* i387-tdep.c: Likewise.
* ia64-libunwind-tdep.c: Likewise.
* ia64-tdep.c: Likewise.
* inf-ptrace.c: Likewise.
* inf-ttrace.c: Likewise.
* infcall.c: Likewise.
* infcmd.c: Likewise.
* infrun.c: Likewise.
* inline-frame.c: Likewise.
* interps.c: Likewise.
* jv-lang.c: Likewise.
* jv-typeprint.c: Likewise.
* linux-fork.c: Likewise.
* linux-nat.c: Likewise.
* linux-thread-db.c: Likewise.
* m32c-tdep.c: Likewise.
* m32r-linux-nat.c: Likewise.
* m32r-tdep.c: Likewise.
* m68k-tdep.c: Likewise.
* m68kbsd-nat.c: Likewise.
* m68kbsd-tdep.c: Likewise.
* m88k-tdep.c: Likewise.
* machoread.c: Likewise.
* macroexp.c: Likewise.
* macrotab.c: Likewise.
* maint.c: Likewise.
* mdebugread.c: Likewise.
* memory-map.c: Likewise.
* mep-tdep.c: Likewise.
* mi/mi-common.c: Likewise.
* microblaze-tdep.c: Likewise.
* mingw-hdep.c: Likewise.
* mips-linux-nat.c: Likewise.
* mips-linux-tdep.c: Likewise.
* mips-tdep.c: Likewise.
* mips64obsd-tdep.c: Likewise.
* mipsnbsd-tdep.c: Likewise.
* mn10300-linux-tdep.c: Likewise.
* mn10300-tdep.c: Likewise.
* moxie-tdep.c: Likewise.
* mt-tdep.c: Likewise.
* nat/linux-btrace.c: Likewise.
* nat/linux-osdata.c: Likewise.
* nat/linux-ptrace.c: Likewise.
* nat/mips-linux-watch.c: Likewise.
* nios2-linux-tdep.c: Likewise.
* nios2-tdep.c: Likewise.
* objc-lang.c: Likewise.
* objfiles.c: Likewise.
* obsd-nat.c: Likewise.
* opencl-lang.c: Likewise.
* osabi.c: Likewise.
* parse.c: Likewise.
* ppc-linux-nat.c: Likewise.
* ppc-sysv-tdep.c: Likewise.
* ppcfbsd-nat.c: Likewise.
* ppcfbsd-tdep.c: Likewise.
* ppcnbsd-nat.c: Likewise.
* ppcnbsd-tdep.c: Likewise.
* ppcobsd-nat.c: Likewise.
* ppcobsd-tdep.c: Likewise.
* printcmd.c: Likewise.
* procfs.c: Likewise.
* prologue-value.c: Likewise.
* psymtab.c: Likewise.
* python/py-lazy-string.c: Likewise.
* python/py-value.c: Likewise.
* regcache.c: Likewise.
* reggroups.c: Likewise.
* registry.c: Likewise.
* remote-sim.c: Likewise.
* remote.c: Likewise.
* rs6000-aix-tdep.c: Likewise.
* rs6000-tdep.c: Likewise.
* s390-linux-tdep.c: Likewise.
* score-tdep.c: Likewise.
* ser-base.c: Likewise.
* ser-mingw.c: Likewise.
* sh-tdep.c: Likewise.
* sh64-tdep.c: Likewise.
* solib-darwin.c: Likewise.
* solib-spu.c: Likewise.
* solib-svr4.c: Likewise.
* source.c: Likewise.
* sparc-nat.c: Likewise.
* sparc-sol2-tdep.c: Likewise.
* sparc-tdep.c: Likewise.
* sparc64-sol2-tdep.c: Likewise.
* sparc64-tdep.c: Likewise.
* sparc64fbsd-tdep.c: Likewise.
* sparc64nbsd-tdep.c: Likewise.
* sparc64obsd-tdep.c: Likewise.
* sparcnbsd-tdep.c: Likewise.
* sparcobsd-tdep.c: Likewise.
* spu-multiarch.c: Likewise.
* spu-tdep.c: Likewise.
* stabsread.c: Likewise.
* stack.c: Likewise.
* symfile.c: Likewise.
* symtab.c: Likewise.
* target-descriptions.c: Likewise.
* target-memory.c: Likewise.
* target.c: Likewise.
* tic6x-linux-tdep.c: Likewise.
* tic6x-tdep.c: Likewise.
* tilegx-linux-nat.c: Likewise.
* tilegx-tdep.c: Likewise.
* top.c: Likewise.
* tramp-frame.c: Likewise.
* tui/tui-out.c: Likewise.
* tui/tui-winsource.c: Likewise.
* ui-out.c: Likewise.
* user-regs.c: Likewise.
* utils.c: Likewise.
* v850-tdep.c: Likewise.
* valops.c: Likewise.
* value.c: Likewise.
* varobj.c: Likewise.
* vax-nat.c: Likewise.
* xml-syscall.c: Likewise.
* xml-tdesc.c: Likewise.
* xstormy16-tdep.c: Likewise.
* xtensa-linux-nat.c: Likewise.
* xtensa-tdep.c: Likewise.
gdb/gdbserver/
2014-08-07 Gary Benson <gbenson@redhat.com>
* server.h: Do not include gdb_assert.h.
|
|
gdb:
2014-07-20 Yao Qi <yao@codesourcery.com>
* eval.c: Remove "Chill" from comments.
* gdbtypes.h: Likewise.
* symtab.h: Likewise.
|
|
BINOP_RANGE was added by the following commit for chill language.
commit badefd2800f5ee2dc6a0eef870771af9dc29bba7
Author: Per Bothner <per@bothner.com>
Date: Wed Nov 29 22:59:31 1995 +0000
* expression.h (enum exp_opcode): Add BINOP_RANGE.
* expprint.c (dump_expression): Support BINOP_RANGE.
* eval.c (evaluate_subexp_standard): Handle BINOP_RANGE (as error).
(case MULTI_SUBSCRIPT): Fix broken f77 value->int ad hoc conversion.
* ch-lang.c (chill_op_print_tab): Support BINOP_RANGE.
(evaluate_subexp_chill): Error on BINOP_COMMA.
Chill language is no longer supported, so we can remove BINOP_RANGE too.
This patch is to remove BINOP_RANGE.
gdb:
2014-07-20 Yao Qi <yao@codesourcery.com>
* std-operator.def: Remove BINOP_RANGE.
* breakpoint.c (watchpoint_exp_is_const): Update.
* expprint.c (dump_subexp_body_standard): Likewise.
* eval.c (init_array_element): Remove dead code.
(evaluate_subexp_standard): Likewise.
|
|
Chill language support was removed several years ago, and BINOP_IN
isn't used for Pascal. This patch is to remove BINOP_IN.
gdb:
2014-07-20 Yao Qi <yao@codesourcery.com>
* std-operator.def: Remove BINOP_IN.
* breakpoint.c (watchpoint_exp_is_const): Update.
* eval.c (evaluate_subexp_standard): Likewise.
* expprint.c (dump_subexp_body_standard): Likewise.
|
|
* eval.c (evaluate_subexp_standard): Call the xmethod if the
best match method returned by find_overload_match is an xmethod.
* valarith.c (value_x_binop, value_x_unop): Call the xmethod if
the best matching operator returned by find_overload_match is an
xmethod.
* valops.c: #include "extension.h".
(find_method_list): Add "fn_list" and "xm_worker_vec" arguments.
Return void. The list of matching source methods is returned in
"fn_list" and a vector of matching debug method workers is
returned in "xm_worker_vec". Update all callers.
(value_find_oload_method_list): Likewise.
(find_oload_champ): Add "xm_worker_vec" parameter. If it is
non-NULL, then the index of the best matching method in this
vector is returned. Update all callers.
(find_overload_match): Include xmethods while performing overload
resolution.
|
|
|
|
The c99 standard in "6.5.3.4 The sizeof operator" states:
If the type of the operand is a variable length array type, the operand
is evaluated;[...]
This patch mirrors the following c99 semantic in gdb:
1| int vla[n][m];
2| int i = 1;
3| sizeof(vla[i++][0]); // No sideffect
4| assert (i == 1);
5| sizeof(vla[i++]); // With sideffect
6| assert (i == 2);
Note: ptype/whatis still do not allow any sideeffects.
This patch was motivated by:
https://sourceware.org/ml/gdb-patches/2014-01/msg00732.html
gdb/ChangeLog:
* eval.c (evaluate_subexp_for_sizeof): Add enum noside argument.
(evaluate_subexp_standard): Pass noside argument.
(evaluate_subexp_for_sizeof) <BINOP_SUBSCRIPT>: Handle subscript case
if noside equals EVAL_NORMAL. If the subscript yields a vla type
re-evaluate subscript operation with EVAL_NORMAL to enable sideffects.
* gdbtypes.c (resolve_dynamic_bounds): Mark bound as evaluated.
* gdbtypes.h (enum range_flags): Add RANGE_EVALUATED case.
testsuite/ChangeLog:
* gdb.base/vla-sideeffect.c: New file.
* gdb.base/vla-sideeffect.exp: New file.
|
|
This patch enables the sizeof operator for indirections:
1| void foo (size_t n) {
2| int vla[n];
3| int *vla_ptr = &vla;
4| }
(gdb) p sizeof(*vla_ptr)
yields sizeof (size_t) * n.
gdb/ChangeLog:
* eval.c (evaluate_subexp_for_sizeof) <UNOP_IND>: Create an indirect
value and retrieve the dynamic type size.
|
|
In C99 the sizeof operator computes the size of a variable length array
at runtime (6.5.3.4 The sizeof operator). This patch reflects the semantic
change in the debugger.
We now are able to get the size of a vla:
1| void foo (size_t n) {
2| int vla[n];
3| }
(gdb) p sizeof(vla)
yields N * sizeof(int).
gdb/ChangeLog:
* eval.c (evaluate_subexp_for_sizeof) <OP_VAR_VALUE>: If the type
passed to sizeof is dynamic evaluate the argument to compute the length.
|
|
This reverts the following patch series, as they cause some regresssions.
commit 37c1ab67a35025d37d42c449deab5f254f9f59da
type: add c99 variable length array support
gdb/
* dwarf2loc.c (dwarf2_locexpr_baton_eval): New function.
(dwarf2_evaluate_property): New function.
* dwarf2loc.h (dwarf2_evaluate_property): New function prototype.
* dwarf2read.c (attr_to_dynamic_prop): New function.
(read_subrange_type): Use attr_to_dynamic_prop to read high bound
attribute.
* gdbtypes.c: Include dwarf2loc.h.
(is_dynamic_type): New function.
(resolve_dynamic_type): New function.
(resolve_dynamic_bounds): New function.
(get_type_length): New function.
(check_typedef): Use get_type_length to compute type length.
* gdbtypes.h (TYPE_HIGH_BOUND_KIND): New macro.
(TYPE_LOW_BOUND_KIND): New macro.
(is_dynamic_type): New function prototype.
* value.c (value_from_contents_and_address): Call resolve_dynamic_type
to resolve dynamic properties of the type. Update comment.
* valops.c (get_value_at, value_at, value_at_lazy): Update comment.
commit 26cb189f8b46dbe7b2d485525329a8919005ca8a
vla: enable sizeof operator to work with variable length arrays
gdb/
* eval.c (evaluate_subexp_for_sizeof) <OP_VAR_VALUE>: If the type
passed to sizeof is dynamic evaluate the argument to compute the length.
commit 04b19544ef6a97b62b2cc4a3170b900e046ab185
vla: enable sizeof operator for indirection
gdb/
* eval.c (evaluate_subexp_for_sizeof) <UNOP_IND>: Create an indirect
value and retrieve the dynamic type size.
commit bcd629a44fff61527430f353cf77e20fe3afc395
vla: update type from newly created value
gdb/
* ada-lang.c (ada_value_primitive_packed_val): Re-fetch type from value.
(ada_template_to_fixed_record_type_1): Likewise.
(ada_to_fixed_type_1): Likewise.
* cp-valprint.c (cp_print_value_fields_rtti): Likewise.
(cp_print_value): Likewise.
* d-valprint.c (dynamic_array_type): Likewise.
* eval.c (evaluate_subexp_with_coercion): Likewise.
* findvar.c (address_of_variable): Likewise.
* jv-valprint.c (java_value_print): Likewise.
* valops.c (value_ind): Likewise.
* value.c (coerce_ref): Likewise.
commit b86138fb0484f42db6cb83abed1e3d0ad2ec4eac
vla: print "variable length" for unresolved dynamic bounds
gdb/
* c-typeprint.c (c_type_print_varspec_suffix): Added
check for not yet resolved high bound. If unresolved, print
"variable length" string to the console instead of random
length.
commit e1969afbd454c09c3aad1990305715f70bc47c3c
vla: support for DW_AT_count
gdb/
* dwarf2read.c (read_subrange_type): Convert DW_AT_count to a dynamic
property and store it as the high bound and flag the range accordingly.
* gdbtypes.c (resolve_dynamic_bounds): If range is flagged as
RANGE_UPPER_BOUND_IS_COUNT assign low + high - 1 as the new high bound.
* gdbtypes.h (enum range_flags): New enum.
(struct range_bounds): Add flags member.
commit 92b09522dc5a93ba4bda3c1c0b3c58264e357c8a
vla: resolve dynamic bounds if value contents is a constant byte-sequence
gdb/
* findvar.c (default_read_var_value): Resolve dynamic bounds if location
points to a constant blob.
commit 3bce82377f683870cc89925ff43aefb7dcce4a77
vla: evaluate operand of sizeof if its type is a vla
gdb/
* eval.c (evaluate_subexp_for_sizeof): Add enum noside argument.
(evaluate_subexp_standard): Pass noside argument.
(evaluate_subexp_for_sizeof) <BINOP_SUBSCRIPT>: Handle subscript case
if noside equals EVAL_NORMAL. If the subscript yields a vla type
re-evaluate subscript operation with EVAL_NORMAL to enable sideffects.
* gdbtypes.c (resolve_dynamic_bounds): Mark bound as evaluated.
* gdbtypes.h (enum range_flags): Add RANGE_EVALUATED case.
gdb/testsuite
* gdb.base/vla-sideeffect.c: New file.
* gdb.base/vla-sideeffect.exp: New file.
commit 504f34326e5ae7c78ebfcdd6ed03c7403b42048b
test: cover subranges with present DW_AT_count attribute
gdb/testsuite/
* gdb.dwarf2/count.exp: New file.
commit 1a237e0ee53bbdee97d72d794b5b42e774cc81c0
test: multi-dimensional c99 vla.
gdb/testsuite/
* gdb.base/vla-multi.c: New file.
* gdb.base/vla-multi.exp: New file.
commit 024e13b46f9c33d151ae82fd9d64c53092fd9313
test: evaluate pointers to C99 vla correctly.
gdb/testsuite/
* gdb.base/vla-ptr.c: New file.
* gdb.base/vla-ptr.exp: New file.
commit c8655f75e2f0fada311be193e3090087a77ec802
test: basic c99 vla tests for C primitives
gdb/testsuite/
* gdb.base/vla-datatypes.c: New file.
* gdb.base/vla-datatypes.exp: New file.
commit 58a84dcf29b735ee776536b4c51ba90b51612b71
test: add mi vla test
gdb/testsuite/
* gdb.mi/mi-vla-c99.exp: New file.
* gdb.mi/vla.c: New file.
|
|
the referent, not the size of the actual reference variable.
|
|
The c99 standard in "6.5.3.4 The sizeof operator" states:
If the type of the operand is a variable length array type, the operand
is evaluated;[...]
This patch mirrors the following c99 semantic in gdb:
1| int vla[n][m];
2| int i = 1;
3| sizeof(vla[i++][0]); // No sideffect
4| assert (i == 1);
5| sizeof(vla[i++]); // With sideffect
6| assert (i == 2);
Note: ptype/whatsis still do not allow any sideeffects.
This patch was motivated by:
https://sourceware.org/ml/gdb-patches/2014-01/msg00732.html
* eval.c (evaluate_subexp_for_sizeof): Add enum noside argument.
(evaluate_subexp_standard): Pass noside argument.
(evaluate_subexp_for_sizeof) <BINOP_SUBSCRIPT>: Handle subscript case
if noside equals EVAL_NORMAL. If the subscript yields a vla type
re-evaluate subscript operation with EVAL_NORMAL to enable sideffects.
* gdbtypes.c (resolve_dynamic_bounds): Mark bound as evaluated.
* gdbtypes.h (enum range_flags): Add RANGE_EVALUATED case.
testsuite/gdb.base/
* vla-sideeffect.c: New file.
* vla-sideeffect.exp: New file.
|
|
Constructing a value based on a type and address might change the type
of the newly constructed value. Thus re-fetch type via value_type to ensure
we have the correct type at hand.
* ada-lang.c (ada_value_primitive_packed_val): Re-fetch type from value.
(ada_template_to_fixed_record_type_1): Likewise.
(ada_to_fixed_type_1): Likewise.
* cp-valprint.c (cp_print_value_fields_rtti): Likewise.
(cp_print_value): Likewise.
* d-valprint.c (dynamic_array_type): Likewise.
* eval.c (evaluate_subexp_with_coercion): Likewise.
* findvar.c (address_of_variable): Likewise.
* jv-valprint.c (java_value_print): Likewise.
* valops.c (value_ind): Likewise.
* value.c (coerce_ref): Likewise.
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This patch enables the sizeof operator for indirections:
1| void foo (size_t n) {
2| int vla[n];
3| int *vla_ptr = &vla;
4| }
(gdb) p sizeof(*vla_ptr)
yields sizeof (size_t) * n.
* eval.c (evaluate_subexp_for_sizeof) <UNOP_IND>: Create an indirect
value and retrieve the dynamic type size.
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In C99 the sizeof operator computes the size of a variable length array
at runtime (6.5.3.4 The sizeof operator). This patch reflects the semantic
change in the debugger.
We now are able to get the size of a vla:
1| void foo (size_t n) {
2| int vla[n];
3| }
(gdb) p sizeof(vla)
yields N * sizeof(int).
* eval.c (evaluate_subexp_for_sizeof) <OP_VAR_VALUE>: If the type
passed to sizeof is dynamic evaluate the argument to compute the length.
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This patch changes a few minimal symbol lookup functions to return a
bound_minimal_symbol rather than a pointer to the minsym. This change
helps prepare gdb for computing a minimal symbol's address at the
point of use.
Note that this changes even those functions that ostensibly search a
single objfile. That was necessary because, in fact, those functions
can search an objfile and its separate debug objfiles; and it is
important for the caller to know in which objfile the minimal symbol
was actually found.
The bulk of this patch is mechanical.
2014-02-26 Tom Tromey <tromey@redhat.com>
* ada-lang.c (ada_update_initial_language): Update.
(ada_main_name, ada_has_this_exception_support): Update.
* ada-tasks.c (ada_tasks_inferior_data_sniffer): Update.
* aix-thread.c (pdc_symbol_addrs, pd_enable): Update.
* arm-tdep.c (arm_skip_stub): Update.
* auxv.c (ld_so_xfer_auxv): Update.
* avr-tdep.c (avr_scan_prologue): Update.
* ax-gdb.c (gen_var_ref): Update.
* breakpoint.c (struct breakpoint_objfile_data)
<overlay_msym, longjmp_msym, terminate_msym, exception_msym>: Change
type to bound_minimal_symbol.
(create_overlay_event_breakpoint)
(create_longjmp_master_breakpoint)
(create_std_terminate_master_breakpoint)
(create_exception_master_breakpoint): Update.
* bsd-uthread.c (bsd_uthread_lookup_address): Update.
* c-exp.y (classify_name): Update.
* coffread.c (coff_symfile_read): Update.
* common/agent.c (agent_look_up_symbols): Update.
* d-lang.c (d_main_name): Update.
* dbxread.c (find_stab_function_addr, end_psymtab): Update.
* dec-thread.c (enable_dec_thread): Update.
* dwarf2loc.c (call_site_to_target_addr): Update.
* elfread.c (elf_gnu_ifunc_resolve_by_got): Update.
* eval.c (evaluate_subexp_standard): Update.
* findvar.c (struct minsym_lookup_data) <result>: Change type
to bound_minimal_symbol.
<objfile>: Remove.
(minsym_lookup_iterator_cb, default_read_var_value): Update.
* frame.c (inside_main_func): Update.
* frv-tdep.c (frv_frame_this_id): Update.
* gcore.c (call_target_sbrk): Update.
* glibc-tdep.c (glibc_skip_solib_resolver): Update.
* gnu-v3-abi.c (gnuv3_get_typeid, gnuv3_skip_trampoline):
Update.
* go-lang.c (go_main_name): Update.
* hppa-hpux-tdep.c (hppa_hpux_skip_trampoline_code)
(hppa_hpux_find_import_stub_for_addr): Update.
* hppa-tdep.c (hppa_extract_17, hppa_lookup_stub_minimal_symbol):
Update. Change return type.
* hppa-tdep.h (hppa_lookup_stub_minimal_symbol): Change return
type.
* jit.c (jit_breakpoint_re_set_internal): Update.
* linux-fork.c (inferior_call_waitpid, checkpoint_command):
Update.
* linux-nat.c (get_signo): Update.
* linux-thread-db.c (inferior_has_bug): Update
* m32c-tdep.c (m32c_return_value)
(m32c_m16c_address_to_pointer): Update.
* m32r-tdep.c (m32r_frame_this_id): Update.
* m68hc11-tdep.c (m68hc11_get_register_info): Update.
* machoread.c (macho_resolve_oso_sym_with_minsym): Update.
* minsyms.c (lookup_minimal_symbol_internal): Rename to
lookup_minimal_symbol. Change return type.
(lookup_minimal_symbol): Remove.
(lookup_bound_minimal_symbol): Update.
(lookup_minimal_symbol_text): Change return type.
(lookup_minimal_symbol_solib_trampoline): Change return type.
* minsyms.h (lookup_minimal_symbol, lookup_minimal_symbol_text)
(lookup_minimal_symbol_solib_trampoline): Change return type.
* mips-linux-tdep.c (mips_linux_skip_resolver): Update.
* objc-lang.c (lookup_objc_class, lookup_child_selector)
(value_nsstring, find_imps): Update.
* obsd-tdep.c (obsd_skip_solib_resolver): Update.
* p-lang.c (pascal_main_name): Update.
* ppc-linux-tdep.c (ppc_linux_spe_context_lookup): Update.
* ppc-sysv-tdep.c (convert_code_addr_to_desc_addr): Update.
* proc-service.c (ps_pglobal_lookup): Update.
* ravenscar-thread.c (get_running_thread_msymbol): Change
return type.
(has_ravenscar_runtime, get_running_thread_id): Update.
* remote.c (remote_check_symbols): Update.
* sol-thread.c (ps_pglobal_lookup): Update.
* sol2-tdep.c (sol2_skip_solib_resolver): Update.
* solib-dsbt.c (lm_base): Update.
* solib-frv.c (lm_base, frv_relocate_section_addresses):
Update.
* solib-irix.c (locate_base): Update.
* solib-som.c (som_solib_create_inferior_hook)
(som_solib_desire_dynamic_linker_symbols, link_map_start):
Update.
* solib-spu.c (spu_enable_break): Update.
* solib-svr4.c (elf_locate_base, enable_break): Update.
* spu-tdep.c (spu_get_overlay_table, spu_catch_start)
(flush_ea_cache): Update.
* stabsread.c (define_symbol): Update.
* symfile.c (simple_read_overlay_table): Update.
* symtab.c (find_pc_sect_line): Update.
* tracepoint.c (scope_info): Update.
* tui-disasm.c (tui_get_begin_asm_address): Update.
* value.c (value_static_field): Update.
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* configure.ac (libpython checking): Remove all but python.o from
CONFIG_OBS. Remove all but python.c from CONFIG_SRCS.
* configure: Regenerate.
* Makefile.in (SFILES): Add extension.c.
(HFILES_NO_SRCDIR): Add extension.h, extension-priv.h
(COMMON_OBS): Add extension.o.
* extension.h: New file.
* extension-priv.h: New file.
* extension.c: New file.
* python/python-internal.h: #include "extension.h".
(gdbpy_auto_load_enabled): Declare.
(gdbpy_apply_val_pretty_printer): Declare.
(gdbpy_apply_frame_filter): Declare.
(gdbpy_preserve_values): Declare.
(gdbpy_breakpoint_cond_says_stop): Declare.
(gdbpy_breakpoint_has_cond): Declare.
(void source_python_script_for_objfile): Delete.
* python/python.c: #include "extension-priv.h".
Delete inclusion of "observer.h".
(extension_language_python): Moved here and renamed from
script_language_python in py-auto-load.c.
Redefined to be of type extension_language_defn.
(python_extension_script_ops): New global.
(python_extension_ops): New global.
(struct python_env): New member previous_active.
(restore_python_env): Call restore_active_ext_lang.
(ensure_python_env): Call set_active_ext_lang.
(gdbpy_clear_quit_flag): Renamed from clear_quit_flag, made static.
New arg extlang.
(gdbpy_set_quit_flag): Renamed from set_quit_flag, made static.
New arg extlang.
(gdbpy_check_quit_flag): Renamed from check_quit_flag, made static.
New arg extlang.
(gdbpy_eval_from_control_command): Renamed from
eval_python_from_control_command, made static. New arg extlang.
(gdbpy_source_script) Renamed from source_python_script, made static.
New arg extlang.
(gdbpy_before_prompt_hook): Renamed from before_prompt_hook. Change
result to int. New arg extlang.
(gdbpy_source_objfile_script): Renamed from
source_python_script_for_objfile, made static. New arg extlang.
(gdbpy_start_type_printers): Renamed from start_type_printers, made
static. New args extlang, extlang_printers. Change result type to
"void".
(gdbpy_apply_type_printers): Renamed from apply_type_printers, made
static. New arg extlang. Rename arg printers to extlang_printers
and change type to ext_lang_type_printers *.
(gdbpy_free_type_printers): Renamed from free_type_printers, made
static. Replace argument arg with extlang, extlang_printers.
(!HAVE_PYTHON, eval_python_from_control_command): Delete.
(!HAVE_PYTHON, source_python_script): Delete.
(!HAVE_PYTHON, gdbpy_should_stop): Delete.
(!HAVE_PYTHON, gdbpy_breakpoint_has_py_cond): Delete.
(!HAVE_PYTHON, start_type_printers): Delete.
(!HAVE_PYTHON, apply_type_printers): Delete.
(!HAVE_PYTHON, free_type_printers): Delete.
(_initialize_python): Delete call to observer_attach_before_prompt.
(finalize_python): Set/restore active extension language.
(gdbpy_finish_initialization) Renamed from
finish_python_initialization, made static. New arg extlang.
(gdbpy_initialized): New function.
* python/python.h: #include "extension.h". Delete #include
"value.h", "mi/mi-cmds.h".
(extension_language_python): Declare.
(GDBPY_AUTO_FILE_NAME): Delete.
(enum py_bt_status): Moved to extension.h and renamed to
ext_lang_bt_status.
(enum frame_filter_flags): Moved to extension.h.
(enum py_frame_args): Moved to extension.h and renamed to
ext_lang_frame_args.
(finish_python_initialization): Delete.
(eval_python_from_control_command): Delete.
(source_python_script): Delete.
(apply_val_pretty_printer): Delete.
(apply_frame_filter): Delete.
(preserve_python_values): Delete.
(gdbpy_script_language_defn): Delete.
(gdbpy_should_stop, gdbpy_breakpoint_has_py_cond): Delete.
(start_type_printers, apply_type_printers, free_type_printers): Delete.
* auto-load.c: #include "extension.h".
(GDB_AUTO_FILE_NAME): Delete.
(auto_load_gdb_scripts_enabled): Make public. New arg extlang.
(script_language_gdb): Delete, moved to extension.c and renamed to
extension_language_gdb.
(source_gdb_script_for_objfile): Delete.
(auto_load_pspace_info): New member unsupported_script_warning_printed.
(loaded_script): Change type of language member to
struct extension_language_defn *.
(init_loaded_scripts_info): Initialize
unsupported_script_warning_printed.
(maybe_add_script): Make static. Change type of language arg to
struct extension_language_defn *.
(clear_section_scripts): Reset unsupported_script_warning_printed.
(auto_load_objfile_script_1): Rewrite to use extension language API.
(auto_load_objfile_script): Make public. Remove support-compiled-in
and auto-load-enabled checks, moved to auto_load_scripts_for_objfile.
(source_section_scripts): Rewrite to use extension language API.
(load_auto_scripts_for_objfile): Rewrite to use
auto_load_scripts_for_objfile.
(collect_matching_scripts_data): Change type of language member to
struct extension_language_defn *.
(auto_load_info_scripts): Change type of language arg to
struct extension_language_defn *.
(unsupported_script_warning_print): New function.
(script_not_found_warning_print): Make static.
(_initialize_auto_load): Rewrite construction of scripts-directory
help.
* auto-load.h (struct objfile): Add forward decl.
(struct script_language): Delete.
(struct auto_load_pspace_info): Add forward decl.
(struct extension_language_defn): Add forward decl.
(maybe_add_script): Delete.
(auto_load_objfile_script): Declare.
(script_not_found_warning_print): Delete.
(auto_load_info_scripts): Update prototype.
(auto_load_gdb_scripts_enabled): Declare.
* python/py-auto-load.c (gdbpy_auto_load_enabled): Renamed from
auto_load_python_scripts_enabled and made public.
(script_language_python): Delete, moved to python.c.
(gdbpy_script_language_defn): Delete.
(info_auto_load_python_scripts): Update to use
extension_language_python.
* breakpoint.c (condition_command): Replace call to
gdbpy_breakpoint_has_py_cond with call to get_breakpoint_cond_ext_lang.
(bpstat_check_breakpoint_conditions): Replace call to gdbpy_should_stop
with call to breakpoint_ext_lang_cond_says_stop.
* python/py-breakpoint.c (gdbpy_breakpoint_cond_says_stop): Renamed
from gdbpy_should_stop. Change result type to enum scr_bp_stop.
New arg slang. Return SCR_BP_STOP_UNSET if py_bp_object is NULL.
(gdbpy_breakpoint_has_cond): Renamed from gdbpy_breakpoint_has_py_cond.
New arg slang.
(local_setattro): Print name of extension language with existing
stop condition.
* valprint.c (val_print, value_print): Update to call
apply_ext_lang_val_pretty_printer.
* cp-valprint.c (cp_print_value): Update call to
apply_ext_lang_val_pretty_printer.
* python/py-prettyprint.c: Remove #ifdef HAVE_PYTHON.
(gdbpy_apply_val_pretty_printer): Renamed from
apply_val_pretty_printer. New arg extlang.
(!HAVE_PYTHON, apply_val_pretty_printer): Delete.
* cli/cli-cmds.c (source_script_from_stream): Rewrite to use
extension language API.
* cli/cli-script.c (execute_control_command): Update to call
eval_ext_lang_from_control_command.
* mi/mi-cmd-stack.c (mi_cmd_stack_list_frames): Update to use
enum ext_lang_bt_status values. Update call to
apply_ext_lang_frame_filter.
(mi_cmd_stack_list_locals): Ditto.
(mi_cmd_stack_list_args): Ditto.
(mi_cmd_stack_list_variables): Ditto.
* mi/mi-main.c: Delete #include "python/python-internal.h".
Add #include "extension.h".
(mi_cmd_list_features): Replace reference to python internal variable
gdb_python_initialized with call to ext_lang_initialized_p.
* stack.c (backtrace_command_1): Update to use enum ext_lang_bt_status.
Update to use enum ext_lang_frame_args. Update to call
apply_ext_lang_frame_filter.
* python/py-framefilter.c (extract_sym): Update to use enum
ext_lang_bt_status.
(extract_value, py_print_type, py_print_value): Ditto.
(py_print_single_arg, enumerate_args, enumerate_locals): Ditto.
(py_mi_print_variables, py_print_locals, py_print_args): Ditto.
(py_print_frame): Ditto.
(gdbpy_apply_frame_filter): Renamed from apply_frame_filter.
New arg extlang. Update to use enum ext_lang_bt_status.
* top.c (gdb_init): Delete #ifdef HAVE_PYTHON call to
finish_python_initialization. Replace with call to
finish_ext_lang_initialization.
* typeprint.c (do_free_global_table): Update to call
free_ext_lang_type_printers.
(create_global_typedef_table): Update to call
start_ext_lang_type_printers.
(find_global_typedef): Update to call apply_ext_lang_type_printers.
* typeprint.h (struct ext_lang_type_printers): Add forward decl.
(type_print_options): Change type of global_printers from "void *"
to "struct ext_lang_type_printers *".
* value.c (preserve_values): Update to call preserve_ext_lang_values.
* python/py-value.c: Remove #ifdef HAVE_PYTHON.
(gdbpy_preserve_values): Renamed from preserve_python_values.
New arg extlang.
(!HAVE_PYTHON, preserve_python_values): Delete.
* utils.c (quit_flag): Delete, moved to extension.c.
(clear_quit_flag, set_quit_flag, check_quit_flag): Delete, moved to
extension.c.
* eval.c: Delete #include "python/python.h".
* main.c: Delete #include "python/python.h".
* defs.h: Update comment.
testsuite/
* gdb.python/py-breakpoint.exp (test_bkpt_eval_funcs): Update expected
output.
* gdb.gdb/python-interrupts.exp: New file.
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This replaces XZALLOC with XCNEW and removes XZALLOC.
This change is purely mechanical.
2014-01-13 Tom Tromey <tromey@redhat.com>
* defs.h (XZALLOC): Remove.
* ada-lang.c (get_ada_inferior_data): Use XCNEW, not XZALLOC.
* ada-tasks.c (get_ada_tasks_pspace_data): Likewise.
(get_ada_tasks_inferior_data): Likewise.
* auto-load.c (get_auto_load_pspace_data): Likewise.
* auxv.c (get_auxv_inferior_data): Likewise.
* bfd-target.c (target_bfd_reopen): Likewise.
* breakpoint.c (get_catch_syscall_inferior_data): Likewise.
(deprecated_insert_raw_breakpoint): Likewise.
* bsd-uthread.c (bsd_uthread_pid_to_str): Likewise.
* corelow.c (core_open): Likewise.
* darwin-nat.c (darwin_check_new_threads): Likewise.
(darwin_attach_pid): Likewise.
* dummy-frame.c (dummy_frame_push): Likewise.
* dwarf2-frame.c (dwarf2_frame_cache): Likewise.
* dwarf2loc.c (allocate_piece_closure): Likewise.
* elfread.c (elf_symfile_segments): Likewise.
* eval.c (ptrmath_type_p): Likewise.
* exceptions.c (EXCEPTIONS_SIGJMP_BUF): Likewise.
* gdbtypes.c (alloc_type_arch): Likewise.
(alloc_type_instance): Likewise.
* hppa-tdep.c (hppa_gdbarch_init): Likewise.
* inf-child.c (inf_child_can_use_agent): Likewise.
* inflow.c (get_inflow_inferior_data): Likewise.
* infrun.c (save_infcall_suspend_state): Likewise.
* jit.c (jit_reader_load): Likewise.
(get_jit_objfile_data): Likewise.
(get_jit_program_space_data): Likewise.
(jit_object_open_impl): Likewise.
(jit_symtab_open_impl): Likewise.
(jit_block_open_impl): Likewise.
(jit_frame_sniffer): Likewise.
* linux-fork.c (add_fork): Likewise.
* maint.c (make_command_stats_cleanup): Likewise.
* objfiles.c (get_objfile_pspace_data): Likewise.
* opencl-lang.c (struct lval_closure): Likewise.
* osdata.c (osdata_start_osdata): Likewise.
* progspace.c (new_address_space): Likewise.
(add_program_space): Likewise.
* remote-sim.c (get_sim_inferior_data): Likewise.
* sh-tdep.c (sh_gdbarch_init): Likewise.
* skip.c (Ignore): Likewise.
(skip_delete_command): Likewise.
* solib-aix.c (get_solib_aix_inferior_data): Likewise.
(library_list_start_library): Likewise.
(solib_aix_current_sos): Likewise.
* solib-darwin.c (get_darwin_info): Likewise.
(darwin_current_sos): Likewise.
* solib-dsbt.c (get_dsbt_info): Likewise.
* solib-ia64-hpux.c (new_so_list): Likewise.
(ia64_hpux_get_solib_linkage_addr): Likewise.
* solib-spu.c (append_ocl_sos): Likewise.
(spu_current_sos): Likewise.
* solib-svr4.c (get_svr4_info): Likewise.
(svr4_keep_data_in_core): Likewise.
(library_list_start_library): Likewise.
(svr4_default_sos): Likewise.
(svr4_read_so_list): Likewise.
* solib-target.c (library_list_start_library): Likewise.
(solib_target_current_sos): Likewise.
* sparc-tdep.c (sparc32_gdbarch_init): Likewise.
* symfile-debug.c (install_symfile_debug_logging): Likewise.
* symfile.c (default_symfile_segments): Likewise.
* target-descriptions.c (tdesc_data_init): Likewise.
(tdesc_create_reg): Likewise.
(struct tdesc_type *): Likewise.
(tdesc_create_vector): Likewise.
(tdesc_set_struct_size): Likewise.
(struct tdesc_type *): Likewise.
(tdesc_free_feature): Likewise.
(tdesc_create_feature): Likewise.
* windows-nat.c (windows_add_thread): Likewise.
(windows_make_so): Likewise.
* xml-support.c (gdb_xml_body_text): Likewise.
(gdb_xml_create_parser_and_cleanup): Likewise.
(xml_process_xincludes): Likewise.
* xml-syscall.c (allocate_syscalls_info): Likewise.
(syscall_create_syscall_desc): Likewise.
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