| /* dwarf2dbg.h - DWARF2 debug support |
| Copyright 1999, 2000 Free Software Foundation, Inc. |
| |
| This file is part of GAS, the GNU Assembler. |
| |
| GAS 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 2, or (at your option) |
| any later version. |
| |
| GAS 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 GAS; see the file COPYING. If not, write to the Free |
| Software Foundation, 59 Temple Place - Suite 330, Boston, MA |
| 02111-1307, USA. */ |
| |
| #ifndef AS_DWARF2DBG_H |
| #define AS_DWARF2DBG_H |
| |
| #include "as.h" |
| |
| #define DWARF2_FLAG_BEGIN_STMT (1 << 0) /* beginning of statement */ |
| #define DWARF2_FLAG_BEGIN_BLOCK (1 << 1) /* beginning of basic block */ |
| |
| struct dwarf2_line_info { |
| unsigned int filenum; |
| unsigned int line; |
| unsigned int column; |
| unsigned int flags; |
| }; |
| |
| /* Implements the .file FILENO "FILENAME" directive. FILENO can be 0 |
| to indicate that no file number has been assigned. All real file |
| number must be >0. */ |
| extern char *dwarf2_directive_file (int dummy); |
| |
| /* Implements the .loc FILENO LINENO [COLUMN] directive. FILENO is |
| the file number, LINENO the line number and the (optional) COLUMN |
| the column of the source code that the following instruction |
| corresponds to. FILENO can be 0 to indicate that the filename |
| specified by the textually most recent .file directive should be |
| used. */ |
| extern void dwarf2_directive_loc (int dummy); |
| |
| /* Returns the current source information. If .file directives have |
| been encountered, the info for the corresponding source file is |
| returned. Otherwise, the info for the assembly source file is |
| returned. */ |
| extern void dwarf2_where (struct dwarf2_line_info *l); |
| |
| /* This function generates .debug_line info based on the address and |
| source information passed in the arguments. ADDR should be the |
| frag-relative offset of the instruction the information is for and |
| L is the source information that should be associated with that |
| address. */ |
| extern void dwarf2_gen_line_info (addressT addr, struct dwarf2_line_info *l); |
| |
| /* Must be called for each generated instruction. */ |
| extern void dwarf2_emit_insn (int); |
| |
| extern void dwarf2_finish (void); |
| |
| extern int dwarf2dbg_estimate_size_before_relax (fragS *); |
| extern int dwarf2dbg_relax_frag (fragS *); |
| extern void dwarf2dbg_convert_frag (fragS *); |
| |
| /* An enumeration which describes the sizes of offsets (to DWARF sections) |
| and the mechanism by which the size is indicated. */ |
| enum dwarf2_format { |
| /* 32-bit format: the initial length field is 4 bytes long. */ |
| dwarf2_format_32bit, |
| /* DWARF3 64-bit format: the representation of the initial length |
| (of a DWARF section) is 0xffffffff (4 bytes) followed by eight |
| bytes indicating the actual length. */ |
| dwarf2_format_64bit, |
| /* SGI extension to DWARF2: The initial length is eight bytes. */ |
| dwarf2_format_64bit_irix |
| }; |
| |
| #endif /* AS_DWARF2DBG_H */ |