#include "config.h"#include "system.h"#include "coretypes.h"#include "tm.h"#include "tree.h"#include "rtl.h"#include "flags.h"#include "regs.h"#include "insn-config.h"#include "reload.h"#include "output.h"#include "dbxout.h"#include "diagnostic-core.h"#include "toplev.h"#include "tm_p.h"#include "ggc.h"#include "debug.h"#include "function.h"#include "target.h"#include "common/common-target.h"#include "langhooks.h"#include "obstack.h"#include "expr.h"#include "cgraph.h"#include "gt-dbxout.h"
Data Structures | |
| struct | typeinfo |
| struct | dbx_file |
Macros | |
| #define | ASM_STABS_OP "\t.stabs\t" |
| #define | ASM_STABN_OP "\t.stabn\t" |
| #define | ASM_STABD_OP "\t.stabd\t" |
| #define | DBX_TYPE_DECL_STABS_CODE N_LSYM |
| #define | DBX_STATIC_CONST_VAR_CODE N_FUN |
| #define | DBX_REGPARM_STABS_CODE N_RSYM |
| #define | DBX_REGPARM_STABS_LETTER 'P' |
| #define | NO_DBX_FUNCTION_END 0 |
| #define | NO_DBX_BNSYM_ENSYM 0 |
| #define | NO_DBX_MAIN_SOURCE_DIRECTORY 0 |
| #define | DBX_BLOCKS_FUNCTION_RELATIVE 0 |
| #define | DBX_LINES_FUNCTION_RELATIVE 0 |
| #define | DBX_CONTIN_LENGTH 80 |
| #define | DBX_CONTIN_CHAR '\\' |
Enumerations | |
| enum | typestatus { TYPE_UNSEEN, TYPE_XREF, TYPE_DEFINED } |
| enum | binclstatus { BINCL_NOT_REQUIRED, BINCL_PENDING, BINCL_PROCESSED } |
Functions | |
| void | default_stabs_asm_out_destructor (rtx symbol, int priority) |
| void | default_stabs_asm_out_constructor (rtx symbol, int priority) |
Variables | |
| static struct typeinfo * | typevec |
| static int | typevec_len |
| static int | next_type_number |
| static tree | preinit_symbols |
| static int | next_file_number |
| static int | scope_labelno |
| static int | dbxout_source_line_counter |
| static int | source_label_number = 1 |
| static const char * | lastfile |
| static int | lastfile_is_base |
Macro Definition Documentation
| #define ASM_STABD_OP "\t.stabd\t" |
| #define ASM_STABN_OP "\t.stabn\t" |
| #define ASM_STABS_OP "\t.stabs\t" |
Output dbx-format symbol table information from GNU compiler. Copyright (C) 1987-2013 Free Software Foundation, Inc.
This file is part of GCC.
GCC is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 3, or (at your option) any later version.
GCC is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
You should have received a copy of the GNU General Public License along with GCC; see the file COPYING3. If not see http://www.gnu.org/licenses/. Output dbx-format symbol table data. This consists of many symbol table entries, each of them a .stabs assembler pseudo-op with four operands: a "name" which is really a description of one symbol and its type, a "code", which is a symbol defined in stab.h whose name starts with N_, an unused operand always 0, and a "value" which is an address or an offset. The name is enclosed in doublequote characters.
Each function, variable, typedef, and structure tag has a symbol table entry to define it. The beginning and end of each level of name scoping within a function are also marked by special symbol table entries.
The "name" consists of the symbol name, a colon, a kind-of-symbol letter, and a data type number. The data type number may be followed by "=" and a type definition; normally this will happen the first time the type number is mentioned. The type definition may refer to other types by number, and those type numbers may be followed by "=" and nested definitions.
This can make the "name" quite long. When a name is more than 80 characters, we split the .stabs pseudo-op into two .stabs pseudo-ops, both sharing the same "code" and "value". The first one is marked as continued with a double-backslash at the end of its "name".
The kind-of-symbol letter distinguished function names from global variables from file-scope variables from parameters from auto variables in memory from typedef names from register variables. See `dbxout_symbol'.
The "code" is mostly redundant with the kind-of-symbol letter that goes in the "name", but not entirely: for symbols located in static storage, the "code" says which segment the address is in, which controls how it is relocated.
The "value" for a symbol in static storage is the core address of the symbol (actually, the assembler label for the symbol). For a symbol located in a stack slot it is the stack offset; for one in a register, the register number. For a typedef symbol, it is zero.
If DEBUG_SYMS_TEXT is defined, all debugging symbols must be output while in the text section.
For more on data type definitions, see `dbxout_type'.
| #define DBX_BLOCKS_FUNCTION_RELATIVE 0 |
| #define DBX_CONTIN_CHAR '\\' |
| #define DBX_CONTIN_LENGTH 80 |
| #define DBX_LINES_FUNCTION_RELATIVE 0 |
| #define DBX_REGPARM_STABS_CODE N_RSYM |
| #define DBX_REGPARM_STABS_LETTER 'P' |
| #define DBX_STATIC_CONST_VAR_CODE N_FUN |
| #define DBX_TYPE_DECL_STABS_CODE N_LSYM |
| #define NO_DBX_BNSYM_ENSYM 0 |
| #define NO_DBX_FUNCTION_END 0 |
| #define NO_DBX_MAIN_SOURCE_DIRECTORY 0 |
Enumeration Type Documentation
| enum binclstatus |
| enum typestatus |
Function Documentation
| void default_stabs_asm_out_constructor | ( | rtx | symbol, |
| int | priority | ||
| ) |
Likewise for global constructors.
| void default_stabs_asm_out_destructor | ( | rtx | symbol, |
| int | priority | ||
| ) |
Typical USG systems don't have stab.h, and they also have no use for DBX-format debugging info. Record an element in the table of global destructors. SYMBOL is a SYMBOL_REF of the function to be called; PRIORITY is a number between 0 and MAX_INIT_PRIORITY.
Variable Documentation
|
static |
A counter for dbxout_source_line.
|
static |
Last source file name mentioned in a NOTE insn.
|
static |
Used by PCH machinery to detect if 'lastfile' should be reset to base_input_file.
|
static |
This is the top of the stack.
This is not saved for PCH, because restoring a PCH should not change it. next_file_number does have to be saved, because the PCH may use some file numbers; however, just before restoring a PCH, next_file_number should always be 0 because we should not have needed any file numbers yet. This is the next file number to use.
|
static |
In dbx output, each type gets a unique number. This is the number for the next type output. The number, once assigned, is in the TYPE_SYMTAB_ADDRESS field.
|
static |
The C front end may call dbxout_symbol before dbxout_init runs. We save all such decls in this list and output them when we get to dbxout_init.
|
static |
A counter for dbxout_function_end.
|
static |
Number for the next N_SOL filename stabs label. The number 0 is reserved for the N_SO filename stabs label.
|
static |
Vector recording information about C data types. When we first notice a data type (a tree node), we assign it a number using next_type_number. That is its index in this vector.
|
static |
Number of elements of space allocated in `typevec'.
