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.
This factors out all the yy-variables remapping to a single file,
instead of each parser having to do the same, with different prefixes.
With this, a parser just needs to define the prefix they want and
include yy-remap.h, which does the dirty job.
Note this renames the c_error, ada_error, etc. functions. Writing the
remapping pattern as:
#define yyerror GDB_YY_REMAP (error)
instead of:
#define yyerror GDB_YY_REMAP (yyerror)
would have avoided the renaming. However, that would be problematic
if we have a macro 'foo' in scope, when we write:
#define yyfoo GDB_YY_REMAP (foo)
as that would expand 'foo'.
The c_yyerror etc. naming end ups indicating that this is a yacc
related function more clearly, so feels like a good change, anyway.
gdb/ChangeLog:
2016-04-22 Pedro Alves <palves@redhat.com>
* ada-exp.y: Remove all yy symbol remappings.
(GDB_YY_REMAP_PREFIX): Define.
Include "yy-remap.h".
* ada-lang.c (ada_language_defn): Adjust.
* ada-lang.h (ada_error): Rename to ...
(ada_yyerror): ... this.
* c-exp.y: Remove all yy symbol remappings.
(GDB_YY_REMAP_PREFIX): Define.
Include "yy-remap.h".
* c-lang.c (c_language_defn, cplus_language_defn)
(asm_language_defn, minimal_language_defn): Adjust.
* c-lang.h (c_error): Rename to ...
(c_yyerror): ... this.
* d-exp.y: Remove all yy symbol remappings.
(GDB_YY_REMAP_PREFIX): Define.
Include "yy-remap.h".
* d-lang.c (d_language_defn): Adjust.
* d-lang.h (d_error): Rename to ...
(d_yyerror): ... this.
* f-exp.y: Remove all yy symbol remappings.
(GDB_YY_REMAP_PREFIX): Define.
Include "yy-remap.h".
* f-lang.c (f_language_defn): Adjust.
* f-lang.h (f_error): Rename to ...
(f_yyerror): ... this.
* go-exp.y: Remove all yy symbol remappings.
(GDB_YY_REMAP_PREFIX): Define.
Include "yy-remap.h".
* go-lang.c (go_language_defn): Adjust.
* go-lang.h (go_error): Rename to ...
(go_yyerror): ... this.
* jv-exp.y: Remove all yy symbol remappings.
(GDB_YY_REMAP_PREFIX): Define.
Include "yy-remap.h".
* jv-lang.c (java_language_defn): Adjust.
* jv-lang.h (java_error): Rename to ...
(java_yyerror): ... this.
* m2-exp.y: Remove all yy symbol remappings.
(GDB_YY_REMAP_PREFIX): Define.
Include "yy-remap.h".
* m2-lang.c (m2_language_defn): Adjust.
* m2-lang.h (m2_error): Rename to ...
(m2_yyerror): ... this.
* objc-exp.y: Remove all yy symbol remappings.
(GDB_YY_REMAP_PREFIX): Define.
Include "yy-remap.h".
* objc-lang.c (objc_language_defn): Adjust.
* opencl-lang.c (opencl_language_defn): Adjust.
* p-exp.y: Remove all yy symbol remappings.
(GDB_YY_REMAP_PREFIX): Define.
Include "yy-remap.h".
* p-lang.c (pascal_language_defn): Adjust.
* p-lang.h (pascal_error): Rename to ...
(pascal_yyerror): ... this.
* yy-remap.h: New file.
Two modifications:
1. The addition of 2013 to the copyright year range for every file;
2. The use of a single year range, instead of potentially multiple
year ranges, as approved by the FSF.
and fields.name members from char * to const char *. All uses updated.
(struct cplus_struct_type): Change type of fn_fieldlists.name member
from char * to const char *. All uses updated.
(type_name_no_tag): Update.
(lookup_unsigned_typename, lookup_signed_typename): Update.
* gdbtypes.c (type_name_no_tag): Change result type
from char * to const char *. All callers updated.
(lookup_unsigned_typename, lookup_signed_typename): Change type of
name parameter from char * to const char *.
* symtab.h (struct cplus_specific): Change type of demangled_name
member from char * to const char *. All uses updated.
(struct general_symbol_info): Change type of name and
mangled_lang.demangled_name members from char * to const char *.
All uses updated.
(symbol_get_demangled_name, symbol_natural_name): Update.
(symbol_demangled_name, symbol_search_name): Update.
* symtab.c (symbol_get_demangled_name): Change result type
from char * to const char *. All callers updated.
(symbol_natural_name, symbol_demangled_name): Ditto.
(symbol_search_name): Ditto.
(completion_list_add_name): Change type of symname,sym_text,
text,word parameters from char * to const char *.
(completion_list_objc_symbol): Change type of sym_text,
text,word parameters from char * to const char *.
* ada-lang.c (find_struct_field): Change type of name parameter
from char * to const char *.
(encoded_ordered_before): Similarly for N0,N1 parameters.
(old_renaming_is_invisible): Similarly for function_name parameter.
(ada_type_name): Change result type from char * to const char *.
All callers updated.
* ada-lang.h (ada_type_name): Update.
* buildsym.c (hashname): Change type of name parameter
from char * to const char *.
* buildsym.h (hashname): Update.
* dbxread.c (end_psymtab): Change type of include_list parameter
from char ** to const char **.
* dwarf2read.c (determine_prefix): Change result type
from char * to const char *. All callers updated.
* f-lang.c (find_common_for_function): Change type of name, funcname
parameters from char * to const char *.
* f-lang.c (find_common_for_function): Update.
* f-valprint.c (list_all_visible_commons): Change type of funcname
parameters from char * to const char *.
* gdbarch.sh (static_transform_name): Change type of name parameter
and result from char * to const char *.
* gdbarch.c: Regenerate.
* gdbarch.h: Regenerate.
* i386-sol2-tdep.c (i386_sol2_static_transform_name): Change type
of name parameter from char * to const char *.
* jv-lang.c (java_primitive_type_from_name): Ditto.
(java_demangled_signature_length): Similarly for signature parameter.
(java_demangled_signature_copy): Ditto.
(java_demangle_type_signature): Ditto.
* jv-lang.h (java_primitive_type_from_name): Update.
(java_demangle_type_signature): Update.
* objc-lang.c (specialcmp): Change type of a,b parameters
from char * to const char *.
* p-lang.c (is_pascal_string_type): Change type of arrayname parameter
from char * to const char *. All callers updated.
* p-lang.h (is_pascal_string_type): Update.
* solib-frv.c (find_canonical_descriptor_in_load_object): Change type
of name parameter from char * to const char *.
* sparc-sol2-tdep.c (sparc_sol2_static_transform_name): Ditto.
* utils.c (fprintf_symbol_filtered): Ditto.
* defs.h (fprintf_symbol_filtered): Update.
* sparc-tdep.h (sparc_sol2_static_transform_name): Update.
* stabsread.h (end_psymtab): Update.
* stack.c (find_frame_funname): Change type of funname parameter
from char ** to const char **.
* stack.h (find_frame_funname): Update.
* typeprint.c (type_print): Change type of varstring parameter
from char * to const char *.
* value.h (type_print): Update.
* xcoffread.c (xcoff_start_psymtab): Change type of filename parameter
from char * to const char *. All callers updated.
(xcoff_end_psymtab): Change type of include_list parameter
from char ** to const char **. All callers updated.
(swap_sym): Similarly for name parameter. All callers updated.
* coffread.c (patch_type): Add (char*) cast to xfree parameter.
Use xstrdup.
(process_coff_symbol): Use xstrdup.
* stabsread.c (stabs_method_name_from_physname): Renamed from
update_method_name_from_physname. Change result type from void
to char *. All callers updated.
(read_member_functions): In has_destructor case, store name in objfile
obstack instead of malloc space. In !has_stub case, fix mem leak.
Don't lose embedded_offset in printing routines throughout.
gdb/
* valprint.h (val_print_array_elements): Change prototype.
* valprint.c (val_print_array_elements): Add `embedded_offset'
parameter, and adjust to pass it down to val_print, while passing
`valaddr' or `address' unmodified. Take embedded_offset into
account when checking repetitions.
* c-valprint.c (c_val_print): Pass embedded_offset to
val_print_array_elements instead of adjusting `valaddr' and
`address'.
* m2-valprint.c (m2_print_array_contents, m2_val_print): Pass
embedded_offset to val_print_array_elements instead of adjusting
`valaddr'.
* p-lang.h (pascal_object_print_value_fields): Adjust prototype.
* p-valprint.c (pascal_val_print): Pass embedded_offset to
val_print_array_elements and pascal_object_print_value_fields
instead of adjusting `valaddr'.
(pascal_object_print_value_fields): Add `offset' parameter, and
adjust to use it.
(pascal_object_print_value): Add `offset' parameter, and adjust to
use it.
(pascal_object_print_static_field): Use
value_contents_for_printing/value_embedded_offset, rather than
value_contents.
* ada-valprint.c (val_print_packed_array_elements): Add `offset'
parameter, and adjust to use it. Use
value_contents_for_printing/value_embedded_offset, rather than
value_contents.
(ada_val_print): Rename `valaddr0' parameter to `valaddr'.
(ada_val_print_array): Add `offset' parameter, and adjust to use
it.
(ada_val_print_1): Rename `valaddr0' parameter to `valaddr', and
`embedded_offset' to `offset'. Don't re-adjust `valaddr'.
Instead work with offsets. Use
value_contents_for_printing/value_embedded_offset, rather than
value_contents. Change `defer_val_int' local type to CORE_ADDR,
and use value_from_pointer to extract a target pointer, rather
than value_from_longest.
(print_variant_part): Add `offset' parameter. Replace
`outer_valaddr' parameter by a new `outer_offset' parameter.
Don't re-adjust `valaddr'. Instead pass down adjusted offsets.
(ada_value_print): Use
value_contents_for_printing/value_embedded_offset, rather than
value_contents.
(print_record): Add `offset' parameter, and adjust to pass it
down.
(print_field_values): Add `offset' parameter. Replace
`outer_valaddr' parameter by a new `outer_offset' parameter.
Don't re-adjust `valaddr'. Instead pass down adjusted offsets.
Use value_contents_for_printing/value_embedded_offset, rather than
value_contents.
* d-valprint.c (dynamic_array_type): Use
value_contents_for_printing/value_embedded_offset, rather than
value_contents.
* jv-valprint.c (java_print_value_fields): Add `offset' parameter.
Don't re-adjust `valaddr'. Instead pass down adjusted offsets.
(java_print_value_fields): Take `offset' into account. Don't
re-adjust `valaddr'. Instead pass down adjusted offsets.
(java_val_print): Take `embedded_offset' into account. Pass it to
java_print_value_fields.
* f-valprint.c (f77_print_array_1): Add `embedded_offset'
parameter. Don't re-adjust `valaddr' or `address'. Instead pass
down adjusted offsets.
(f77_print_array): Add `embedded_offset' parameter. Pass it down.
(f_val_print): Take `embedded_offset' into account.
gdb/testsuite/
* gdb.base/printcmds.c (some_struct): New struct and instance.
* gdb.base/printcmds.exp (test_print_repeats_embedded_array): New
procedure.
<global scope>: Call it.
of FT_INTEGER fundamental type for array range index type.
(decode_base_type): Use builtin types of current_gdbarch
instead of fundamental types.
* dwarf2read.c (struct dwarf2_cu): Remove ftypes member.
(read_file_scope): Do not initialize ftypes member.
(dwarf_base_type, dwarf2_fundamental_types): Remove functions.
(read_array_type): Use builtin_type_int32 instead of FT_INTEGER
fundamental type for array range index type.
(read_tag_string_type): Likewise for string range index type.
Also, do not overwrite FT_CHAR type with new string type.
(read_base_type): If DW_AT_name is missing, create unnamed type
with given properties instead of looking for a fundamental type.
Create new types as TYPE_TARGET_TYPE for DW_ATE_address and
DW_ATE_complex_float types.
(read_subrange_type): Create new type to represent missing
DW_AT_type instead of looking for a fundamental type.
(die_type): Use builtin type to represent "void" instead of
looking for a fundamental type.
* stabsread.c (define_symbol): Use builtin types to represent
'r' and 'i' floating-point and integer constants.
* gdbtypes.c (lookup_fundamental_type): Remove.
* gdbtypes.h (lookup_fundamental_type): Remove prototype.
(FT_VOID, FT_BOOLEAN, FT_CHAR, FT_SIGNED_CHAR, FT_UNSIGNED_CHAR,
FT_SHORT, FT_SIGNED_SHORT, FT_UNSIGNED_SHORT, FT_INTEGER,
FT_SIGNED_INTEGER, FT_UNSIGNED_INTEGER, FT_LONG, FT_SIGNED_LONG,
FT_UNSIGNED_LONG, FT_LONG_LONG, FT_SIGNED_LONG_LONG,
FT_UNSIGNED_LONG_LONG, FT_FLOAT, FT_DBL_PREC_FLOAT, FT_EXT_PREC_FLOAT,
FT_COMPLEX, FT_DBL_PREC_COMPLEX, FT_EXT_PREC_COMPLEX, FT_STRING,
FT_FIXED_DECIMAL, FT_FLOAT_DECIMAL, FT_BYTE, FT_UNSIGNED_BYTE,
FT_TEMPLATE_ARG, FT_DECFLOAT, FT_DBL_PREC_DECFLOAT,
FT_EXT_PREC_DECFLOAT, FT_NUM_MEMBERS): Remove macros.
* objfiles.c (struct objfile): Remove fundamental_types member.
* symfile.c (reread_symbols): Do not clear fundamental_types.
* language.h (struct language_defn): Remove la_fund_type member.
(create_fundamental_type): Remove.
* language.c (unk_lang_create_fundamental_type): Remove.
(unknown_language_defn, auto_language_defn,
local_language_defn): Adapt initializer.
* ada-lang.c (ada_create_fundamental_type): Remove.
(ada_language_defn): Adapt initializer.
* c-lang.h (c_create_fundamental_type): Remove prototype.
* c-lang.c (c_create_fundamental_type): Remove.
(c_language_defn, cplus_language_defn, asm_language_defn,
minimal_language_defn): Adapt initializer.
* f-lang.c (f_create_fundamental_type): Remove.
(f_language_defn): Adapt initializer.
* jv-lang.c (java_create_fundamental_type): Remove.
(java_language_defn): Adapt initializer.
* m2-lang.c (m2_create_fundamental_type): Remove.
(m2_language_defn): Adapt initializer.
* objc-lang.c (objc_create_fundamental_type): Remove.
(objc_language_defn): Adapt initializer.
* p-lang.h (pascal_create_fundamental_type): Remove prototype.
* p-lang.c (pascal_create_fundamental_type): Remove.
(pascal_language_defn): Adapt initializer.
* scm-lang.c (scm_language_defn): Adapt initializer.
* Makefile.in (gnu-v3-abi.o): Delete special rule.
(eval.o, gnu-v3-abi.o, ia64-tdep.o): Update.
* ada-valprint.c (ada_print_scalar): Update for new type codes.
* c-typeprint.c (c_print_type): Update for new type codes.
(c_type_print_varspec_prefix, c_type_print_varspec_suffix)
(c_type_print_base): Likewise.
(c_type_print_args): Rewrite.
* c-valprint.c (c_val_print): Update for new type codes. Remove
support for references to members. Treat methods like functions.
* cp-abi.c (cplus_print_method_ptr, cplus_method_ptr_size)
(cplus_make_method_ptr, cplus_method_ptr_to_value): New.
* cp-abi.h (cplus_print_method_ptr, cplus_method_ptr_size)
(cplus_make_method_ptr, cplus_method_ptr_to_value): New prototypes.
(struct cp_abi_ops): Add corresponding members.
* cp-valprint.c (cp_print_class_method): Delete.
(cp_find_class_member): New function.
(cp_print_class_member): Use it. Simplify support for bogus
member pointers.
* dwarf2read.c (quirk_gcc_member_function_pointer): Use
lookup_methodptr_type.
(read_tag_ptr_to_member_type): Likewise, and lookup_memberptr_type.
* eval.c (evaluate_subexp_standard): Implement EVAL_SKIP for
OP_SCOPE. Update call to value_aggregate_elt. Rewrite member
pointer support.
(evaluate_subexp_for_address): Handle OP_SCOPE explicitly. Handle
references returned by user defined operators.
* f-typeprint.c (f_print_type, f_type_print_varspec_prefix)
(f_type_print_varspec_suffix): Remove support for member pointers.
* gdbtypes.c (lookup_memberptr_type): Renamed from lookup_member_type
and adjusted.
(smash_to_memberptr_type): Likewise, from smash_to_member_type.
(lookup_methodptr_type): New.
(rank_one_type): Adjust for TYPE_CODE_MEMBERPTR.
(recursive_dump_type): Update for new types.
* gdbtypes.h (enum type_code): Replace TYPE_CODE_MEMBER with
TYPE_CODE_MEMBERPTR and TYPE_CODE_METHODPTR.
(lookup_memberptr_type, lookup_methodptr_type)
(smash_to_memberptr_type): New prototypes.
(smash_to_method_type): Formatting fix.
(lookup_member_type, smash_to_member_type): Delete prototypes.
* gnu-v3-abi.c (gnuv3_get_vtable, gnuv3_get_virtual_fn): New.
Do not rely on debug information for the vptr or the method's
enclosing type. Handle function descriptors for IA64.
(gnuv3_virtual_fn_field): Rewrite using the new functions.
(gnuv3_find_method_in, gnuv3_print_method_ptr)
(gnuv3_method_ptr_size, gnuv3_make_method_ptr)
(gnuv3_method_ptr_to_value): New.
(init_gnuv3_ops): Set new members of gnu_v3_abi_ops.
* hpread.c (hpread_type_lookup): Update for new types.
* infcall.c (value_arg_coerce): Likewise.
* m2-typeprint.c (m2_print_type): Remove explicit support
for member pointers.
* m2-valprint.c (m2_val_print): Likewise.
* p-typeprint.c (pascal_type_print_varspec_prefix)
(pascal_type_print_varspec_suffix, pascal_type_print_base): Likewise.
* p-valprint.c (pascal_val_print): Likewise.
(pascal_object_print_class_method, pascal_object_print_class_member):
Delete.
* p-lang.h (pascal_object_print_class_method)
(pascal_object_print_class_member): Delete prototypes.
* stabsread.c (read_type): Update for new types.
* typeprint.c (print_type_scalar): Likewise.
* valops.c (value_struct_elt_for_reference, value_namespace_elt)
(value_maybe_namespace_elt, value_aggregate_elt): Add want_address
argument. Construct a pointer to member if the address of a
function or data member is requested.
(value_cast_pointers): Don't modify the input value.
(value_cast): Adjust pointer to member handling for new types.
Allow null pointer to member constants. Don't modify the input
value.
(value_ind): Remove pointer to member check. Handle function
descriptors for function pointers.
(value_struct_elt, value_find_oload_method_list, check_field):
Remove pointer to member checks.
* value.c (unpack_long): Allow pointers to data members.
(value_from_longest): Allow member pointers.
* value.h (value_aggregate_elt): Add want_address.
* varobj.c (c_variable_editable): Remove check for members.
* gdbarch.sh: Add vtable_function_descriptors and vbit_in_delta.
* ia64-tdep.c (ia64_convert_from_func_ptr_addr): Handle descriptors
in virtual tables.
(ia64_gdbarch_init): Call set_gdbarch_vtable_function_descriptors.
* c-lang.h (cp_print_class_method): Delete prototype.
* arm-tdep.c (arm_gdbarch_init): Call set_gdbarch_vbit_in_delta.
* mips-tdep.c (mips_gdbarch_init): Likewise.
* gdbarch.c, gdbarch.h: Regenerated.
* gdb.cp/classes.exp (test_pointers_to_class_members): Update expected
output. Test the types of members and member pointers.
* gdb.cp/inherit.exp (test_print_mi_member_types): Remove KFAILs for
gdb/2092.
* gdb.cp/member-ptr.exp: Search for a comment instead of a
statement. Enable for GCC. Update expected output for some tests
and add new tests. Remove obsolete GCC KFAILs. Allow GCC's class
layout.
* gdb.cp/member-ptr.cc (Padding, Padding::vspacer, Base, Base::get_x)
(Base::vget_base, Left, Left::vget, Right, Right::vget, Diamond)
(Diamond::vget_base): New.
(main): Add new tests.
* gdb.cp/printmethod.exp: Update expected output for member functions.
* gdb.cp/virtfunc.exp (test_virtual_calls): Add a KFAIL for
print pEe->D::vg().
* language.h (struct language_defn): Make la_printstr's buffer
parameter a const bfd_byte.
* p-lang.h (pascal_printstr): Update function to match.
* ada-valprint.c (ada_printstr): Update function to match.
* scm-lang.c (scm_printstr): Update function to match.
* p-lang.c (pascal_printstr): Update function to match.
* ada-lang.h (ada_printstr): Update function to match.
* m2-lang.c (m2_printstr): Update function to match.
* objc-lang.c (objc_printstr): Update function to match.
* c-lang.h (c_printstr): Update function to match.
* f-lang.c (f_printstr): Update function to match.
* c-lang.c (c_printstr): Update function to match.
* language.c (unk_lang_printstr): Update function to match.
* p-lang.h (is_pascal_string_type): Declaration changed,
new sixth argument of type char ** added.
* p-lang.c (is_pascal_string_type): Implementation
changed. Args length_pos, length_size, string_pos, char_size
can now be NULL. New argument arrayname set to the field
name of the char array. Return value set to char array
field index plus one.
* p-valprint.c (pascal_val_print): Adapt to new declaration of
is_pascal_string_type function.
* p-lang.c (is_pascal_string_type): New function to determine if a
type is a string type.
* p-lang.h: Add prototype for is_pascal_string_type.
* p-valprint.c (pascal_val_print) : Use is_pascal_string_type function
to display strings nicely.
David Taylor