* gdb.dwarf2/dw2-abs-hi-pc.exp: Build tests with "nodebug".
	* dwarf2read.c (struct dwarf2_cu): Improve comments for members
	addr_base, ranges_base.
	* dwarf2read.c (init_cutu_and_read_dies_no_follow): Fix comments.
	Remove argument abbrev_section.  All callers updated.
	* dwarf2read.c (read_str_index): Delete arg cu.  All callers updated.
Remove `expout*' globals from parser-defs.h

This commit removes the "expout*" globals from our parser code, turning
them into a structure that is passed when an expression needs to be
evaluated.  This is the initial step to make our parser less
"globalized".

This is mostly a mechanical patch, which creates a structure containing
the "expout*" globals and then modify all the functions that handle them
in order to take the structure as argument.  It is big, and has been
reviewed at least 4 times, so I think everything is covered.

Below you can see the message links from the discussions:

- First attempt:

<https://sourceware.org/ml/gdb-patches/2012-01/msg00522.html>
Message-ID: <m3k44s7qej.fsf@gmail.com>

- Second attempt:

<https://sourceware.org/ml/gdb-patches/2012-06/msg00054.html>
Message-Id: <1338665528-5932-1-git-send-email-sergiodj@redhat.com>

- Third attempt:

<https://sourceware.org/ml/gdb-patches/2014-01/msg00949.html>
Message-Id: <1390629467-27139-1-git-send-email-sergiodj@redhat.com>

- Fourth (last) attempt:

<https://sourceware.org/ml/gdb-patches/2014-03/msg00546.html>
Message-Id: <1395463432-29750-1-git-send-email-sergiodj@redhat.com>

gdb/
2014-03-27  Sergio Durigan Junior  <sergiodj@redhat.com>

	Remove some globals from our parser.
	* language.c (unk_lang_parser): Add "struct parser_state"
	argument.
	* language.h (struct language_defn) <la_parser>: Likewise.
	* parse.c (expout, expout_size, expout_ptr): Remove variables.
	(initialize_expout): Add "struct parser_state" argument.
	Rewrite function to use the parser state.
	(reallocate_expout, write_exp_elt, write_exp_elt_opcode,
	write_exp_elt_sym, write_exp_elt_block, write_exp_elt_objfile,
	write_exp_elt_longcst, write_exp_elt_dblcst,
	write_exp_elt_decfloatcst, write_exp_elt_type,
	write_exp_elt_intern, write_exp_string, write_exp_string_vector,
	write_exp_bitstring, write_exp_msymbol, mark_struct_expression,
	write_dollar_variable): Likewise.
	(parse_exp_in_context_1): Use parser state.
	(insert_type_address_space): Add "struct parser_state" argument.
	Use parser state.
	(increase_expout_size): New function.
	* parser-defs.h: Forward declare "struct language_defn" and
	"struct parser_state".
	(expout, expout_size, expout_ptr): Remove extern declarations.
	(parse_gdbarch, parse_language): Rewrite macro declarations to
	accept the parser state.
	(struct parser_state): New struct.
	(initialize_expout, reallocate_expout, write_exp_elt_opcode,
	write_exp_elt_sym, write_exp_elt_longcst, write_exp_elt_dblcst,
	write_exp_elt_decfloatcst, write_exp_elt_type,
	write_exp_elt_intern, write_exp_string, write_exp_string_vector,
	write_exp_bitstring, write_exp_elt_block, write_exp_elt_objfile,
	write_exp_msymbol, write_dollar_variable,
	mark_struct_expression, insert_type_address_space): Add "struct
	parser_state" argument.
	(increase_expout_size): New function.
	* utils.c (do_clear_parser_state): New function.
	(make_cleanup_clear_parser_state): Likewise.
	* utils.h (make_cleanup_clear_parser_state): New function
	prototype.
	* aarch64-linux-tdep.c (aarch64_stap_parse_special_token):
	Update calls to write_exp* in order to pass the parser state.
	* arm-linux-tdep.c (arm_stap_parse_special_token): Likewise.
	* i386-tdep.c (i386_stap_parse_special_token_triplet): Likewise.
	(i386_stap_parse_special_token_three_arg_disp): Likewise.
	* ppc-linux-tdep.c (ppc_stap_parse_special_token): Likewise.
	* stap-probe.c (stap_parse_register_operand): Likewise.
	(stap_parse_single_operand): Likewise.
	(stap_parse_argument_1): Likewise.
	(stap_parse_argument): Use parser state.
	* stap-probe.h: Include "parser-defs.h".
	(struct stap_parse_info) <pstate>: New field.
	* c-exp.y (parse_type): Rewrite to use parser state.
	(yyparse): Redefine to c_parse_internal.
	(pstate): New global variable.
	(parse_number): Add "struct parser_state" argument.
	(write_destructor_name): Likewise.
	(type_exp): Update calls to write_exp* and similars in order to
	use parser state.
	(exp1, exp, variable, qualified_name, space_identifier,
	typename, typebase): Likewise.
	(write_destructor_name, parse_number, lex_one_token,
	classify_name, classify_inner_name, c_parse): Add "struct
	parser_state" argument.  Update function to use parser state.
	* c-lang.h: Forward declare "struct parser_state".
	(c_parse): Add "struct parser_state" argument.
	* ada-exp.y (parse_type): Rewrite macro to use parser state.
	(yyparse): Redefine macro to ada_parse_internal.
	(pstate): New variable.
	(write_int, write_object_renaming, write_var_or_type,
	write_name_assoc, write_exp_op_with_string, write_ambiguous_var,
	type_int, type_long, type_long_long, type_float, type_double,
	type_long_double, type_char, type_boolean, type_system_address):
	Add "struct parser_state" argument.
	(exp1, primary, simple_exp, relation, and_exp, and_then_exp,
	or_exp, or_else_exp, xor_exp, type_prefix, opt_type_prefix,
	var_or_type, aggregate, aggregate_component_list,
	positional_list, others, component_group,
	component_associations): Update calls to write_exp* and similar
	functions in order to use parser state.
	(ada_parse, write_var_from_sym, write_int,
	write_exp_op_with_string, write_object_renaming,
	find_primitive_type, write_selectors, write_ambiguous_var,
	write_var_or_type, write_name_assoc, type_int, type_long,
	type_long_long, type_float, type_double, type_long_double,
	type_char, type_boolean, type_system_address): Add "struct
	parser_state" argument.  Adjust function to use parser state.
	* ada-lang.c (parse): Likewise.
	* ada-lang.h: Forward declare "struct parser_state".
	(ada_parse): Add "struct parser_state" argument.
	* ada-lex.l (processInt, processReal): Likewise.  Adjust all
	calls to both functions.
	* f-exp.y (parse_type, parse_f_type): Rewrite macros to use
	parser state.
	(yyparse): Redefine macro to f_parse_internal.
	(pstate): New variable.
	(parse_number): Add "struct parser_state" argument.
	(type_exp, exp, subrange, typebase): Update calls to write_exp*
	and similars in order to use parser state.
	(parse_number): Adjust code to use parser state.
	(yylex): Likewise.
	(f_parse): New function.
	* f-lang.h: Forward declare "struct parser_state".
	(f_parse): Add "struct parser_state" argument.
	* jv-exp.y (parse_type, parse_java_type): Rewrite macros to use
	parser state.
	(yyparse): Redefine macro for java_parse_internal.
	(pstate): New variable.
	(push_expression_name, push_expression_name, insert_exp): Add
	"struct parser_state" argument.
	(type_exp, StringLiteral, Literal, PrimitiveType, IntegralType,
	FloatingPointType, exp1, PrimaryNoNewArray, FieldAccess,
	FuncStart, MethodInvocation, ArrayAccess, PostfixExpression,
	PostIncrementExpression, PostDecrementExpression,
	UnaryExpression, PreIncrementExpression, PreDecrementExpression,
	UnaryExpressionNotPlusMinus, CastExpression,
	MultiplicativeExpression, AdditiveExpression, ShiftExpression,
	RelationalExpression, EqualityExpression, AndExpression,
	ExclusiveOrExpression, InclusiveOrExpression,
	ConditionalAndExpression, ConditionalOrExpression,
	ConditionalExpression, Assignment, LeftHandSide): Update
	calls to write_exp* and similars in order to use parser state.
	(parse_number): Ajust code to use parser state.
	(yylex): Likewise.
	(java_parse): New function.
	(push_variable): Add "struct parser_state" argument.  Adjust
	code to user parser state.
	(push_fieldnames, push_qualified_expression_name,
	push_expression_name, insert_exp): Likewise.
	* jv-lang.h: Forward declare "struct parser_state".
	(java_parse): Add "struct parser_state" argument.
	* m2-exp.y (parse_type, parse_m2_type): Rewrite macros to use
	parser state.
	(yyparse): Redefine macro to m2_parse_internal.
	(pstate): New variable.
	(type_exp, exp, fblock, variable, type): Update calls to
	write_exp* and similars to use parser state.
	(yylex): Likewise.
	(m2_parse): New function.
	* m2-lang.h: Forward declare "struct parser_state".
	(m2_parse): Add "struct parser_state" argument.
	* objc-lang.c (end_msglist): Add "struct parser_state" argument.
	* objc-lang.h: Forward declare "struct parser_state".
	(end_msglist): Add "struct parser_state" argument.
	* p-exp.y (parse_type): Rewrite macro to use parser state.
	(yyparse): Redefine macro to pascal_parse_internal.
	(pstate): New variable.
	(parse_number): Add "struct parser_state" argument.
	(type_exp, exp1, exp, qualified_name, variable): Update calls to
	write_exp* and similars in order to use parser state.
	(parse_number, yylex): Adjust code to use parser state.
	(pascal_parse): New function.
	* p-lang.h: Forward declare "struct parser_state".
	(pascal_parse): Add "struct parser_state" argument.
	* go-exp.y (parse_type): Rewrite macro to use parser state.
	(yyparse): Redefine macro to go_parse_internal.
	(pstate): New variable.
	(parse_number): Add "struct parser_state" argument.
	(type_exp, exp1, exp, variable, type): Update calls to
	write_exp* and similars in order to use parser state.
	(parse_number, lex_one_token, classify_name, yylex): Adjust code
	to use parser state.
	(go_parse): Likewise.
	* go-lang.h: Forward declare "struct parser_state".
	(go_parse): Add "struct parser_state" argument.
daily update
[varobj] false type-changed status for reference to Ada array

Given the following variable...

   BT : Bounded := New_Bounded (Low => 1, High => 3);

... where type Bounded is defined as a simple unconstrained array:

   type Bounded is array (Integer range <>) of Integer;

Creating a varobj for that variable, and immediately asking for
varobj updates, GDB says that our varobj changed types!

    (gdb)
    -var-create bt * bt
    ^done,name="bt",numchild="3",value="[3]",type="<ref> array (1 .. 3) of integer",has_more="0"
    (gdb)
    -var-update 1 *
    ^done,changelist=[{name="bt",value="[3]",in_scope="true",type_changed="true",new_type="<ref> array (1 .. 3) of integer",new_num_children="3",has_more="0"}]

The expected output for the -var-update command is, in this case:

    (gdb)
    -var-update 1 *
    ^done,changelist=[]

The problem occurs because the ada-varobj module does not handle
references, and while the references gets stripped when the varobj
gets created, it doesn't when computing varobj updates.

More specifically, when creating the varobj, varobj_create creates
a new value which is a reference to a TYPE_CODE_ARRAY. It then calls
install_new_value which calls coerce_ref with the following comment:

    /* We are not interested in the address of references, and given
       that in C++ a reference is not rebindable, it cannot
       meaningfully change.  So, get hold of the real value.  */
    if (value)
      value = coerce_ref (value);

This leaves the varobj's type component still a ref, while
the varobj's value is now our array, without the ref. This explains
why the "value" field in the varobj indicates an array with 3 elements
"[3]" while the "type" field shows a ref to an array. Generally
speaking, most users have said that showing the ref was a useful
piece of information, so this patch is not touching this part.

Next, when the user issues the -var-update request, varobj_update
calls value_of_root to compute the varobj's new value as well as
determine whether the value's type has changed or not. What happens
in a nutshell is that it calls value_of_root_1 (which re-evaluates
the expression and returns the corresponding new value), finds that
the new value is not NULL, and thus asks whether it has mutated:

    else if (varobj_value_has_mutated (var, value, value_type (value)))

This then indirectly delegates the determination to the language-specific
callback, which fails, because it does not handle references.

This patch fixes the issue by adjusting varobj_value_has_mutated to
expect references, and strip them when seen. This allows the various
language-specific implementations to remain unaware of references.

gdb/ChangeLog:

        * varobj.c (varobj_value_has_mutated): If NEW_VALUE is
        a reference, strip the reference layer before calling
        the lang_ops value_has_mutated callback.

gdb/testsuite/ChangeLog:

        * gdb.ada/mi_dyn_arr: New testcase.
daily update
	* config/tc-avr.c: Add specified_mcu variable for selected mcu.
	(enum options): add OPTION_RMW_ISA for -mrmw option.
	(struct option md_longopts): Add mrmw option.
	(md_show_usage): add -mrmw option description.
	(md_parse_option): Update isa details if -mrmw option specified.
	* doc/c-avr.texi: Add doc for new option -mrmw.
	* gas/avr/avr.exp: Run new tests.
	* gas/avr/rmw.d: Add test for additional ISA support.
	* gas/avr/rmw.s: Ditto.
	* gas/ChangeLog: Revert
	* gas/config/tc-avr.c: Revert
	* gas/doc/c-avr.texi: Revert
	* gas/testsuite/ChangeLog: Revert
	* gas/testsuite/gas/avr/avr.exp: Revert
	* gas/testsuite/gas/avr/rmw.d: Revert
	* gas/testsuite/gas/avr/rmw.s: Revert

	This reverts commit d24e46e3e247e46eb2f5e7ebb5efd0f9fcc5fcdd.
	* config/tc-avr.c: Add specified_mcu variable for selected mcu.
	(enum options): add OPTION_RMW_ISA for -mrmw option.
	(struct option md_longopts): Add mrmw option.
	(md_show_usage): add -mrmw option description.
	(md_parse_option): Update isa details if -mrmw option specified.
	* doc/c-avr.texi: Add doc for new option -mrmw.
	* gas/avr/avr.exp: Run new tests.
	* gas/avr/rmw.d: Add test for additional ISA support.
	* gas/avr/rmw.s: Ditto.
* ChangeLog: Fix duplicate entry.  Set date on entry correctly.
daily update
	* gdb.texinfo (Non-Stop Mode): Remove trailing whitespace.
	(Background Execution): Ditto.
* inferior.h (enum stop_kind): Improve comment.
	* infrun.c (set_last_target_status): New function.
	(handle_inferior_event): Call it.
daily update
Allow ';' as a directory separator

Hi,
I find two fails in source-dir.exp on mingw32 host.

(gdb) directory /nOtExStInG/a /nOtExStInG/b /nOtExStInG/c^M
Warning: /nOtExStInG/a: No such file or directory.^M
Warning: /nOtExStInG/b: No such file or directory.^M
Warning: /nOtExStInG/c: No such file or directory.^M
Source directories searched: /nOtExStInG/a;/nOtExStInG/b;/nOtExStInG/c;$cdir;$cwd^M
(gdb) FAIL: gdb.base/source-dir.exp: directory /nOtExStInG/a /nOtExStInG/b /nOtExStInG/c
directory /nOtExStInG/b /nOtExStInG/d /nOtExStInG/c^M
Warning: /nOtExStInG/b: No such file or directory.^M
Warning: /nOtExStInG/d: No such file or directory.^M
Warning: /nOtExStInG/c: No such file or directory.^M
Source directories searched: /nOtExStInG/b;/nOtExStInG/d;/nOtExStInG/c;/nOtExStInG/a;$cdir;$cwd^M
(gdb) FAIL: gdb.base/source-dir.exp: directory /nOtExStInG/b /nOtExStInG/d /nOtExStInG/c

The regular expression expects ':' and ';' is path separator on Windows.
This patch is to allow ';' as a path separator in regular expression.

This patch is similar to Dan's patch to fix a similar problem here

 Re: directory separators on minGW hosts
 https://sourceware.org/ml/gdb-patches/2006-02/msg00359.html

It is obvious.  Pushed it in.

gdb/testsuite:

2014-03-31  Yao Qi  <yao@codesourcery.com>

	* gdb.base/source-dir.exp: Allow ';' as a directory separator.
[AArch64] Fixup ld-aarch64/eh-frame.d expected PC range.

Fix the expected output for ld-aarch64/eh-frame.d.  This issue was
exposed by the recent fix to the output of objdump -Wf here:
https://sourceware.org/ml/binutils/2014-03/msg00251.html
This is a fix for PR ld/16744 which showed that an object file linked with -r and -z [no]execstack
would not honour the [no]execstack.  Fully linked binaries use a special segment to indicate the
state of the stack, but relocatable object files only have sections, and .note.GNU-stack was not
being created.

	* emultempl/elf32.em (_after_open): Create a .note.GNU-stack
	section when performing a relocatable link with -z [no]execstack
	specified.