97d40d3d4a
us up to version 2.17.50.20070703, at the last GPLv2 commit. Amongst others, this added upstream support for some FreeBSD-specific things that we previously had to manually hack in, such as the OSABI label support, and so on. There are also quite a number of new files, some for cpu's (e.g. SPU) that we may or may not be interested in, but those can be cleaned up later on, if needed.
1323 lines
29 KiB
C
1323 lines
29 KiB
C
/* listing.c - maintain assembly listings
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Copyright 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000,
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2001, 2002, 2003, 2005, 2006
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Free Software Foundation, Inc.
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This file is part of GAS, the GNU Assembler.
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GAS is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2, or (at your option)
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any later version.
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GAS is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with GAS; see the file COPYING. If not, write to the Free
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Software Foundation, 51 Franklin Street - Fifth Floor, Boston, MA
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02110-1301, USA. */
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/* Contributed by Steve Chamberlain <sac@cygnus.com>
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A listing page looks like:
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LISTING_HEADER sourcefilename pagenumber
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TITLE LINE
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SUBTITLE LINE
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linenumber address data source
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linenumber address data source
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linenumber address data source
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linenumber address data source
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If not overridden, the listing commands are:
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.title "stuff"
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Put "stuff" onto the title line
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.sbttl "stuff"
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Put stuff onto the subtitle line
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If these commands come within 10 lines of the top of the page, they
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will affect the page they are on, as well as any subsequent page
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.eject
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Thow a page
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.list
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Increment the enable listing counter
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.nolist
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Decrement the enable listing counter
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.psize Y[,X]
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Set the paper size to X wide and Y high. Setting a psize Y of
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zero will suppress form feeds except where demanded by .eject
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If the counter goes below zero, listing is suppressed.
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Listings are a maintained by read calling various listing_<foo>
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functions. What happens most is that the macro NO_LISTING is not
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defined (from the Makefile), then the macro LISTING_NEWLINE expands
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into a call to listing_newline. The call is done from read.c, every
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time it sees a newline, and -l is on the command line.
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The function listing_newline remembers the frag associated with the
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newline, and creates a new frag - note that this is wasteful, but not
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a big deal, since listing slows things down a lot anyway. The
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function also remembers when the filename changes.
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When all the input has finished, and gas has had a chance to settle
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down, the listing is output. This is done by running down the list of
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frag/source file records, and opening the files as needed and printing
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out the bytes and chars associated with them.
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The only things which the architecture can change about the listing
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are defined in these macros:
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LISTING_HEADER The name of the architecture
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LISTING_WORD_SIZE The make of the number of bytes in a word, this determines
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the clumping of the output data. eg a value of
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2 makes words look like 1234 5678, whilst 1
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would make the same value look like 12 34 56
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78
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LISTING_LHS_WIDTH Number of words of above size for the lhs
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LISTING_LHS_WIDTH_SECOND Number of words for the data on the lhs
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for the second line
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LISTING_LHS_CONT_LINES Max number of lines to use up for a continuation
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LISTING_RHS_WIDTH Number of chars from the input file to print
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on a line. */
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#include "as.h"
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#include "obstack.h"
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#include "safe-ctype.h"
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#include "input-file.h"
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#include "subsegs.h"
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#ifndef NO_LISTING
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#ifndef LISTING_HEADER
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#define LISTING_HEADER "GAS LISTING"
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#endif
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#ifndef LISTING_WORD_SIZE
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#define LISTING_WORD_SIZE 4
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#endif
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#ifndef LISTING_LHS_WIDTH
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#define LISTING_LHS_WIDTH ((LISTING_WORD_SIZE) > 4 ? 1 : 4 / (LISTING_WORD_SIZE))
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#endif
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#ifndef LISTING_LHS_WIDTH_SECOND
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#define LISTING_LHS_WIDTH_SECOND LISTING_LHS_WIDTH
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#endif
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#ifndef LISTING_RHS_WIDTH
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#define LISTING_RHS_WIDTH 100
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#endif
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#ifndef LISTING_LHS_CONT_LINES
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#define LISTING_LHS_CONT_LINES 4
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#endif
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/* This structure remembers which .s were used. */
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typedef struct file_info_struct
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{
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struct file_info_struct * next;
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char * filename;
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long pos;
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unsigned int linenum;
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int at_end;
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} file_info_type;
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/* This structure remembers which line from which file goes into which
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frag. */
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struct list_info_struct
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{
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/* Frag which this line of source is nearest to. */
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fragS *frag;
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/* The actual line in the source file. */
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unsigned int line;
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/* Pointer to the file info struct for the file which this line
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belongs to. */
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file_info_type *file;
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/* The expanded text of any macro that may have been executing. */
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char *line_contents;
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/* Next in list. */
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struct list_info_struct *next;
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/* Pointer to the file info struct for the high level language
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source line that belongs here. */
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file_info_type *hll_file;
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/* High level language source line. */
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unsigned int hll_line;
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/* Pointer to any error message associated with this line. */
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char *message;
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enum
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{
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EDICT_NONE,
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EDICT_SBTTL,
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EDICT_TITLE,
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EDICT_NOLIST,
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EDICT_LIST,
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EDICT_NOLIST_NEXT,
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EDICT_EJECT
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} edict;
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char *edict_arg;
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/* Nonzero if this line is to be omitted because it contains
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debugging information. This can become a flags field if we come
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up with more information to store here. */
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int debugging;
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};
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typedef struct list_info_struct list_info_type;
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int listing_lhs_width = LISTING_LHS_WIDTH;
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int listing_lhs_width_second = LISTING_LHS_WIDTH_SECOND;
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int listing_lhs_cont_lines = LISTING_LHS_CONT_LINES;
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int listing_rhs_width = LISTING_RHS_WIDTH;
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struct list_info_struct * listing_tail;
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static file_info_type * file_info_head;
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static file_info_type * last_open_file_info;
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static FILE * last_open_file;
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static struct list_info_struct * head;
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static int paper_width = 200;
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static int paper_height = 60;
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extern int listing;
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/* File to output listings to. */
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static FILE *list_file;
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/* This static array is used to keep the text of data to be printed
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before the start of the line. */
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#define MAX_BYTES \
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(((LISTING_WORD_SIZE * 2) + 1) * listing_lhs_width \
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+ ((((LISTING_WORD_SIZE * 2) + 1) * listing_lhs_width_second) \
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* listing_lhs_cont_lines) \
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+ 20)
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static char *data_buffer;
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/* Prototypes. */
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static void listing_message (const char *, const char *);
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static file_info_type *file_info (const char *);
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static void new_frag (void);
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static char *buffer_line (file_info_type *, char *, unsigned int);
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static void listing_page (list_info_type *);
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static unsigned int calc_hex (list_info_type *);
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static void print_lines (list_info_type *, unsigned int, char *, unsigned int);
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static void list_symbol_table (void);
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static void print_source (file_info_type *, list_info_type *, char *, unsigned int);
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static int debugging_pseudo (list_info_type *, const char *);
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static void listing_listing (char *);
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static void
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listing_message (const char *name, const char *message)
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{
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if (listing_tail != (list_info_type *) NULL)
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{
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unsigned int l = strlen (name) + strlen (message) + 1;
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char *n = (char *) xmalloc (l);
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strcpy (n, name);
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strcat (n, message);
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listing_tail->message = n;
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}
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}
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void
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listing_warning (const char *message)
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{
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listing_message (_("Warning:"), message);
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}
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void
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listing_error (const char *message)
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{
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listing_message (_("Error:"), message);
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}
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static file_info_type *
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file_info (const char *file_name)
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{
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/* Find an entry with this file name. */
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file_info_type *p = file_info_head;
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while (p != (file_info_type *) NULL)
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{
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if (strcmp (p->filename, file_name) == 0)
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return p;
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p = p->next;
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}
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/* Make new entry. */
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p = xmalloc (sizeof (file_info_type));
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p->next = file_info_head;
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file_info_head = p;
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p->filename = xstrdup (file_name);
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p->pos = 0;
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p->linenum = 0;
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p->at_end = 0;
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return p;
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}
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static void
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new_frag (void)
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{
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frag_wane (frag_now);
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frag_new (0);
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}
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void
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listing_newline (char *ps)
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{
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char *file;
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unsigned int line;
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static unsigned int last_line = 0xffff;
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static char *last_file = NULL;
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list_info_type *new = NULL;
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if (listing == 0)
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return;
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if (now_seg == absolute_section)
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return;
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#ifdef OBJ_ELF
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/* In ELF, anything in a section beginning with .debug or .line is
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considered to be debugging information. This includes the
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statement which switches us into the debugging section, which we
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can only set after we are already in the debugging section. */
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if ((listing & LISTING_NODEBUG) != 0
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&& listing_tail != NULL
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&& ! listing_tail->debugging)
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{
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const char *segname;
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segname = segment_name (now_seg);
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if (strncmp (segname, ".debug", sizeof ".debug" - 1) == 0
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|| strncmp (segname, ".line", sizeof ".line" - 1) == 0)
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listing_tail->debugging = 1;
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}
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#endif
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as_where (&file, &line);
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if (ps == NULL)
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{
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if (line == last_line
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&& !(last_file && file && strcmp (file, last_file)))
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return;
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new = (list_info_type *) xmalloc (sizeof (list_info_type));
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/* Detect if we are reading from stdin by examining the file
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name returned by as_where().
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[FIXME: We rely upon the name in the strcmp below being the
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same as the one used by input_scrub_new_file(), if that is
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not true, then this code will fail].
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If we are reading from stdin, then we need to save each input
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line here (assuming of course that we actually have a line of
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input to read), so that it can be displayed in the listing
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that is produced at the end of the assembly. */
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if (strcmp (file, _("{standard input}")) == 0
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&& input_line_pointer != NULL)
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{
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char *copy;
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int len;
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int seen_quote = 0;
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for (copy = input_line_pointer - 1;
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*copy && (seen_quote
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|| (! is_end_of_line [(unsigned char) *copy]));
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copy++)
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if (*copy == '"' && copy[-1] != '\\')
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seen_quote = ! seen_quote;
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len = (copy - input_line_pointer) + 2;
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copy = xmalloc (len);
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if (copy != NULL)
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{
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char *src = input_line_pointer - 1;
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char *dest = copy;
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while (--len)
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{
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unsigned char c = *src++;
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/* Omit control characters in the listing. */
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if (!ISCNTRL (c))
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*dest++ = c;
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}
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*dest = 0;
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}
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new->line_contents = copy;
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}
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else
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new->line_contents = NULL;
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}
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else
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{
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new = xmalloc (sizeof (list_info_type));
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new->line_contents = ps;
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}
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last_line = line;
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last_file = file;
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new_frag ();
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if (listing_tail)
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listing_tail->next = new;
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else
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head = new;
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listing_tail = new;
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new->frag = frag_now;
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new->line = line;
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new->file = file_info (file);
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new->next = (list_info_type *) NULL;
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new->message = (char *) NULL;
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new->edict = EDICT_NONE;
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new->hll_file = (file_info_type *) NULL;
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new->hll_line = 0;
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new->debugging = 0;
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new_frag ();
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#ifdef OBJ_ELF
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/* In ELF, anything in a section beginning with .debug or .line is
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considered to be debugging information. */
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if ((listing & LISTING_NODEBUG) != 0)
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{
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const char *segname;
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segname = segment_name (now_seg);
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if (strncmp (segname, ".debug", sizeof ".debug" - 1) == 0
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|| strncmp (segname, ".line", sizeof ".line" - 1) == 0)
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new->debugging = 1;
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}
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#endif
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}
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/* Attach all current frags to the previous line instead of the
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current line. This is called by the MIPS backend when it discovers
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that it needs to add some NOP instructions; the added NOP
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instructions should go with the instruction that has the delay, not
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with the new instruction. */
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void
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listing_prev_line (void)
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{
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list_info_type *l;
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fragS *f;
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if (head == (list_info_type *) NULL
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|| head == listing_tail)
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return;
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new_frag ();
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for (l = head; l->next != listing_tail; l = l->next)
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;
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for (f = frchain_now->frch_root; f != (fragS *) NULL; f = f->fr_next)
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if (f->line == listing_tail)
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f->line = l;
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listing_tail->frag = frag_now;
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new_frag ();
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}
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/* This function returns the next source line from the file supplied,
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truncated to size. It appends a fake line to the end of each input
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file to make. */
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static char *
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buffer_line (file_info_type *file, char *line, unsigned int size)
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{
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unsigned int count = 0;
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int c;
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char *p = line;
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/* If we couldn't open the file, return an empty line. */
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if (file->at_end)
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return "";
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|
|
/* Check the cache and see if we last used this file. */
|
|
if (!last_open_file_info || file != last_open_file_info)
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{
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if (last_open_file)
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{
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last_open_file_info->pos = ftell (last_open_file);
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fclose (last_open_file);
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}
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last_open_file_info = file;
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last_open_file = fopen (file->filename, FOPEN_RT);
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if (last_open_file == NULL)
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{
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file->at_end = 1;
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return "";
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}
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|
|
/* Seek to where we were last time this file was open. */
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if (file->pos)
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fseek (last_open_file, file->pos, SEEK_SET);
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}
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|
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c = fgetc (last_open_file);
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|
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/* Leave room for null. */
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size -= 1;
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while (c != EOF && c != '\n')
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{
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if (count < size)
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*p++ = c;
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count++;
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c = fgetc (last_open_file);
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}
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if (c == EOF)
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{
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file->at_end = 1;
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if (count + 2 < size)
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{
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*p++ = '.';
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*p++ = '.';
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*p++ = '.';
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}
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}
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file->linenum++;
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*p++ = 0;
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return line;
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}
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static const char *fn;
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static unsigned int eject; /* Eject pending */
|
|
static unsigned int page; /* Current page number */
|
|
static char *title; /* Current title */
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|
static char *subtitle; /* Current subtitle */
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|
static unsigned int on_page; /* Number of lines printed on current page */
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|
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static void
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listing_page (list_info_type *list)
|
|
{
|
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/* Grope around, see if we can see a title or subtitle edict coming up
|
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soon. (we look down 10 lines of the page and see if it's there) */
|
|
if ((eject || (on_page >= (unsigned int) paper_height))
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&& paper_height != 0)
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{
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unsigned int c = 10;
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int had_title = 0;
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int had_subtitle = 0;
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page++;
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while (c != 0 && list)
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{
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if (list->edict == EDICT_SBTTL && !had_subtitle)
|
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{
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had_subtitle = 1;
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subtitle = list->edict_arg;
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}
|
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if (list->edict == EDICT_TITLE && !had_title)
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{
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had_title = 1;
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title = list->edict_arg;
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}
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list = list->next;
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c--;
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}
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|
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if (page > 1)
|
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{
|
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fprintf (list_file, "\f");
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|
}
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|
|
fprintf (list_file, "%s %s \t\t\tpage %d\n", LISTING_HEADER, fn, page);
|
|
fprintf (list_file, "%s\n", title);
|
|
fprintf (list_file, "%s\n", subtitle);
|
|
on_page = 3;
|
|
eject = 0;
|
|
}
|
|
}
|
|
|
|
static unsigned int
|
|
calc_hex (list_info_type *list)
|
|
{
|
|
int data_buffer_size;
|
|
list_info_type *first = list;
|
|
unsigned int address = ~(unsigned int) 0;
|
|
fragS *frag;
|
|
fragS *frag_ptr;
|
|
unsigned int octet_in_frag;
|
|
|
|
/* Find first frag which says it belongs to this line. */
|
|
frag = list->frag;
|
|
while (frag && frag->line != list)
|
|
frag = frag->fr_next;
|
|
|
|
frag_ptr = frag;
|
|
|
|
data_buffer_size = 0;
|
|
|
|
/* Dump all the frags which belong to this line. */
|
|
while (frag_ptr != (fragS *) NULL && frag_ptr->line == first)
|
|
{
|
|
/* Print as many bytes from the fixed part as is sensible. */
|
|
octet_in_frag = 0;
|
|
while ((offsetT) octet_in_frag < frag_ptr->fr_fix
|
|
&& data_buffer_size < MAX_BYTES - 3)
|
|
{
|
|
if (address == ~(unsigned int) 0)
|
|
address = frag_ptr->fr_address / OCTETS_PER_BYTE;
|
|
|
|
sprintf (data_buffer + data_buffer_size,
|
|
"%02X",
|
|
(frag_ptr->fr_literal[octet_in_frag]) & 0xff);
|
|
data_buffer_size += 2;
|
|
octet_in_frag++;
|
|
}
|
|
if (frag_ptr->fr_type == rs_fill)
|
|
{
|
|
unsigned int var_rep_max = octet_in_frag;
|
|
unsigned int var_rep_idx = octet_in_frag;
|
|
|
|
/* Print as many bytes from the variable part as is sensible. */
|
|
while (((offsetT) octet_in_frag
|
|
< (frag_ptr->fr_fix + frag_ptr->fr_var * frag_ptr->fr_offset))
|
|
&& data_buffer_size < MAX_BYTES - 3)
|
|
{
|
|
if (address == ~(unsigned int) 0)
|
|
address = frag_ptr->fr_address / OCTETS_PER_BYTE;
|
|
|
|
sprintf (data_buffer + data_buffer_size,
|
|
"%02X",
|
|
(frag_ptr->fr_literal[var_rep_idx]) & 0xff);
|
|
data_buffer_size += 2;
|
|
|
|
var_rep_idx++;
|
|
octet_in_frag++;
|
|
|
|
if ((offsetT) var_rep_idx >= frag_ptr->fr_fix + frag_ptr->fr_var)
|
|
var_rep_idx = var_rep_max;
|
|
}
|
|
}
|
|
|
|
frag_ptr = frag_ptr->fr_next;
|
|
}
|
|
data_buffer[data_buffer_size] = '\0';
|
|
return address;
|
|
}
|
|
|
|
static void
|
|
print_lines (list_info_type *list, unsigned int lineno,
|
|
char *string, unsigned int address)
|
|
{
|
|
unsigned int idx;
|
|
unsigned int nchars;
|
|
unsigned int lines;
|
|
unsigned int octet_in_word = 0;
|
|
char *src = data_buffer;
|
|
int cur;
|
|
|
|
/* Print the stuff on the first line. */
|
|
listing_page (list);
|
|
nchars = (LISTING_WORD_SIZE * 2 + 1) * listing_lhs_width;
|
|
|
|
/* Print the hex for the first line. */
|
|
if (address == ~(unsigned int) 0)
|
|
{
|
|
fprintf (list_file, "% 4d ", lineno);
|
|
for (idx = 0; idx < nchars; idx++)
|
|
fprintf (list_file, " ");
|
|
|
|
fprintf (list_file, "\t%s\n", string ? string : "");
|
|
|
|
on_page++;
|
|
|
|
listing_page (0);
|
|
|
|
return;
|
|
}
|
|
|
|
if (had_errors ())
|
|
fprintf (list_file, "% 4d ???? ", lineno);
|
|
else
|
|
fprintf (list_file, "% 4d %04x ", lineno, address);
|
|
|
|
/* And the data to go along with it. */
|
|
idx = 0;
|
|
cur = 0;
|
|
while (src[cur] && idx < nchars)
|
|
{
|
|
int offset;
|
|
offset = cur;
|
|
fprintf (list_file, "%c%c", src[offset], src[offset + 1]);
|
|
cur += 2;
|
|
octet_in_word++;
|
|
|
|
if (octet_in_word == LISTING_WORD_SIZE)
|
|
{
|
|
fprintf (list_file, " ");
|
|
idx++;
|
|
octet_in_word = 0;
|
|
}
|
|
|
|
idx += 2;
|
|
}
|
|
|
|
for (; idx < nchars; idx++)
|
|
fprintf (list_file, " ");
|
|
|
|
fprintf (list_file, "\t%s\n", string ? string : "");
|
|
on_page++;
|
|
listing_page (list);
|
|
|
|
if (list->message)
|
|
{
|
|
fprintf (list_file, "**** %s\n", list->message);
|
|
listing_page (list);
|
|
on_page++;
|
|
}
|
|
|
|
for (lines = 0;
|
|
lines < (unsigned int) listing_lhs_cont_lines
|
|
&& src[cur];
|
|
lines++)
|
|
{
|
|
nchars = ((LISTING_WORD_SIZE * 2) + 1) * listing_lhs_width_second - 1;
|
|
idx = 0;
|
|
|
|
/* Print any more lines of data, but more compactly. */
|
|
fprintf (list_file, "% 4d ", lineno);
|
|
|
|
while (src[cur] && idx < nchars)
|
|
{
|
|
int offset;
|
|
offset = cur;
|
|
fprintf (list_file, "%c%c", src[offset], src[offset + 1]);
|
|
cur += 2;
|
|
idx += 2;
|
|
octet_in_word++;
|
|
|
|
if (octet_in_word == LISTING_WORD_SIZE)
|
|
{
|
|
fprintf (list_file, " ");
|
|
idx++;
|
|
octet_in_word = 0;
|
|
}
|
|
}
|
|
|
|
fprintf (list_file, "\n");
|
|
on_page++;
|
|
listing_page (list);
|
|
}
|
|
}
|
|
|
|
static void
|
|
list_symbol_table (void)
|
|
{
|
|
extern symbolS *symbol_rootP;
|
|
int got_some = 0;
|
|
|
|
symbolS *ptr;
|
|
eject = 1;
|
|
listing_page (0);
|
|
|
|
for (ptr = symbol_rootP; ptr != (symbolS *) NULL; ptr = symbol_next (ptr))
|
|
{
|
|
if (SEG_NORMAL (S_GET_SEGMENT (ptr))
|
|
|| S_GET_SEGMENT (ptr) == absolute_section)
|
|
{
|
|
/* Don't report section symbols. They are not interesting. */
|
|
if (symbol_section_p (ptr))
|
|
continue;
|
|
|
|
if (S_GET_NAME (ptr))
|
|
{
|
|
char buf[30], fmt[8];
|
|
valueT val = S_GET_VALUE (ptr);
|
|
|
|
/* @@ Note that this is dependent on the compilation options,
|
|
not solely on the target characteristics. */
|
|
if (sizeof (val) == 4 && sizeof (int) == 4)
|
|
sprintf (buf, "%08lx", (unsigned long) val);
|
|
else if (sizeof (val) <= sizeof (unsigned long))
|
|
{
|
|
sprintf (fmt, "%%0%lulx",
|
|
(unsigned long) (sizeof (val) * 2));
|
|
sprintf (buf, fmt, (unsigned long) val);
|
|
}
|
|
#if defined (BFD64)
|
|
else if (sizeof (val) > 4)
|
|
sprintf_vma (buf, val);
|
|
#endif
|
|
else
|
|
abort ();
|
|
|
|
if (!got_some)
|
|
{
|
|
fprintf (list_file, "DEFINED SYMBOLS\n");
|
|
on_page++;
|
|
got_some = 1;
|
|
}
|
|
|
|
if (symbol_get_frag (ptr) && symbol_get_frag (ptr)->line)
|
|
{
|
|
fprintf (list_file, "%20s:%-5d %s:%s %s\n",
|
|
symbol_get_frag (ptr)->line->file->filename,
|
|
symbol_get_frag (ptr)->line->line,
|
|
segment_name (S_GET_SEGMENT (ptr)),
|
|
buf, S_GET_NAME (ptr));
|
|
}
|
|
else
|
|
{
|
|
fprintf (list_file, "%33s:%s %s\n",
|
|
segment_name (S_GET_SEGMENT (ptr)),
|
|
buf, S_GET_NAME (ptr));
|
|
}
|
|
|
|
on_page++;
|
|
listing_page (0);
|
|
}
|
|
}
|
|
|
|
}
|
|
if (!got_some)
|
|
{
|
|
fprintf (list_file, "NO DEFINED SYMBOLS\n");
|
|
on_page++;
|
|
}
|
|
fprintf (list_file, "\n");
|
|
on_page++;
|
|
listing_page (0);
|
|
|
|
got_some = 0;
|
|
|
|
for (ptr = symbol_rootP; ptr != (symbolS *) NULL; ptr = symbol_next (ptr))
|
|
{
|
|
if (S_GET_NAME (ptr) && strlen (S_GET_NAME (ptr)) != 0)
|
|
{
|
|
if (S_GET_SEGMENT (ptr) == undefined_section)
|
|
{
|
|
if (!got_some)
|
|
{
|
|
got_some = 1;
|
|
fprintf (list_file, "UNDEFINED SYMBOLS\n");
|
|
on_page++;
|
|
listing_page (0);
|
|
}
|
|
fprintf (list_file, "%s\n", S_GET_NAME (ptr));
|
|
on_page++;
|
|
listing_page (0);
|
|
}
|
|
}
|
|
}
|
|
if (!got_some)
|
|
{
|
|
fprintf (list_file, "NO UNDEFINED SYMBOLS\n");
|
|
on_page++;
|
|
listing_page (0);
|
|
}
|
|
}
|
|
|
|
static void
|
|
print_source (file_info_type *current_file, list_info_type *list,
|
|
char *buffer, unsigned int width)
|
|
{
|
|
if (!current_file->at_end)
|
|
{
|
|
while (current_file->linenum < list->hll_line
|
|
&& !current_file->at_end)
|
|
{
|
|
char *p = buffer_line (current_file, buffer, width);
|
|
|
|
fprintf (list_file, "%4u:%-13s **** %s\n", current_file->linenum,
|
|
current_file->filename, p);
|
|
on_page++;
|
|
listing_page (list);
|
|
}
|
|
}
|
|
}
|
|
|
|
/* Sometimes the user doesn't want to be bothered by the debugging
|
|
records inserted by the compiler, see if the line is suspicious. */
|
|
|
|
static int
|
|
debugging_pseudo (list_info_type *list, const char *line)
|
|
{
|
|
static int in_debug;
|
|
int was_debug;
|
|
|
|
if (list->debugging)
|
|
{
|
|
in_debug = 1;
|
|
return 1;
|
|
}
|
|
|
|
was_debug = in_debug;
|
|
in_debug = 0;
|
|
|
|
while (ISSPACE (*line))
|
|
line++;
|
|
|
|
if (*line != '.')
|
|
{
|
|
#ifdef OBJ_ELF
|
|
/* The ELF compiler sometimes emits blank lines after switching
|
|
out of a debugging section. If the next line drops us back
|
|
into debugging information, then don't print the blank line.
|
|
This is a hack for a particular compiler behaviour, not a
|
|
general case. */
|
|
if (was_debug
|
|
&& *line == '\0'
|
|
&& list->next != NULL
|
|
&& list->next->debugging)
|
|
{
|
|
in_debug = 1;
|
|
return 1;
|
|
}
|
|
#endif
|
|
|
|
return 0;
|
|
}
|
|
|
|
line++;
|
|
|
|
if (strncmp (line, "def", 3) == 0)
|
|
return 1;
|
|
if (strncmp (line, "val", 3) == 0)
|
|
return 1;
|
|
if (strncmp (line, "scl", 3) == 0)
|
|
return 1;
|
|
if (strncmp (line, "line", 4) == 0)
|
|
return 1;
|
|
if (strncmp (line, "endef", 5) == 0)
|
|
return 1;
|
|
if (strncmp (line, "ln", 2) == 0)
|
|
return 1;
|
|
if (strncmp (line, "type", 4) == 0)
|
|
return 1;
|
|
if (strncmp (line, "size", 4) == 0)
|
|
return 1;
|
|
if (strncmp (line, "dim", 3) == 0)
|
|
return 1;
|
|
if (strncmp (line, "tag", 3) == 0)
|
|
return 1;
|
|
if (strncmp (line, "stabs", 5) == 0)
|
|
return 1;
|
|
if (strncmp (line, "stabn", 5) == 0)
|
|
return 1;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void
|
|
listing_listing (char *name ATTRIBUTE_UNUSED)
|
|
{
|
|
list_info_type *list = head;
|
|
file_info_type *current_hll_file = (file_info_type *) NULL;
|
|
char *message;
|
|
char *buffer;
|
|
char *p;
|
|
int show_listing = 1;
|
|
unsigned int width;
|
|
|
|
buffer = xmalloc (listing_rhs_width);
|
|
data_buffer = xmalloc (MAX_BYTES);
|
|
eject = 1;
|
|
list = head->next;
|
|
|
|
while (list)
|
|
{
|
|
unsigned int list_line;
|
|
|
|
width = listing_rhs_width > paper_width ? paper_width :
|
|
listing_rhs_width;
|
|
|
|
list_line = list->line;
|
|
switch (list->edict)
|
|
{
|
|
case EDICT_LIST:
|
|
/* Skip all lines up to the current. */
|
|
list_line--;
|
|
break;
|
|
case EDICT_NOLIST:
|
|
show_listing--;
|
|
break;
|
|
case EDICT_NOLIST_NEXT:
|
|
if (show_listing == 0)
|
|
list_line--;
|
|
break;
|
|
case EDICT_EJECT:
|
|
break;
|
|
case EDICT_NONE:
|
|
break;
|
|
case EDICT_TITLE:
|
|
title = list->edict_arg;
|
|
break;
|
|
case EDICT_SBTTL:
|
|
subtitle = list->edict_arg;
|
|
break;
|
|
default:
|
|
abort ();
|
|
}
|
|
|
|
if (show_listing <= 0)
|
|
{
|
|
while (list->file->linenum < list_line
|
|
&& !list->file->at_end)
|
|
p = buffer_line (list->file, buffer, width);
|
|
}
|
|
|
|
if (list->edict == EDICT_LIST
|
|
|| (list->edict == EDICT_NOLIST_NEXT && show_listing == 0))
|
|
{
|
|
/* Enable listing for the single line that caused the enable. */
|
|
list_line++;
|
|
show_listing++;
|
|
}
|
|
|
|
if (show_listing > 0)
|
|
{
|
|
/* Scan down the list and print all the stuff which can be done
|
|
with this line (or lines). */
|
|
message = 0;
|
|
|
|
if (list->hll_file)
|
|
current_hll_file = list->hll_file;
|
|
|
|
if (current_hll_file && list->hll_line && (listing & LISTING_HLL))
|
|
print_source (current_hll_file, list, buffer, width);
|
|
|
|
if (list->line_contents)
|
|
{
|
|
if (!((listing & LISTING_NODEBUG)
|
|
&& debugging_pseudo (list, list->line_contents)))
|
|
print_lines (list,
|
|
list->file->linenum == 0 ? list->line : list->file->linenum,
|
|
list->line_contents, calc_hex (list));
|
|
|
|
free (list->line_contents);
|
|
list->line_contents = NULL;
|
|
}
|
|
else
|
|
{
|
|
while (list->file->linenum < list_line
|
|
&& !list->file->at_end)
|
|
{
|
|
unsigned int address;
|
|
|
|
p = buffer_line (list->file, buffer, width);
|
|
|
|
if (list->file->linenum < list_line)
|
|
address = ~(unsigned int) 0;
|
|
else
|
|
address = calc_hex (list);
|
|
|
|
if (!((listing & LISTING_NODEBUG)
|
|
&& debugging_pseudo (list, p)))
|
|
print_lines (list, list->file->linenum, p, address);
|
|
}
|
|
}
|
|
|
|
if (list->edict == EDICT_EJECT)
|
|
eject = 1;
|
|
}
|
|
|
|
if (list->edict == EDICT_NOLIST_NEXT && show_listing == 1)
|
|
--show_listing;
|
|
|
|
list = list->next;
|
|
}
|
|
|
|
free (buffer);
|
|
free (data_buffer);
|
|
data_buffer = NULL;
|
|
}
|
|
|
|
void
|
|
listing_print (char *name)
|
|
{
|
|
int using_stdout;
|
|
|
|
title = "";
|
|
subtitle = "";
|
|
|
|
if (name == NULL)
|
|
{
|
|
list_file = stdout;
|
|
using_stdout = 1;
|
|
}
|
|
else
|
|
{
|
|
list_file = fopen (name, FOPEN_WT);
|
|
if (list_file != NULL)
|
|
using_stdout = 0;
|
|
else
|
|
{
|
|
as_warn (_("can't open %s: %s"), name, xstrerror (errno));
|
|
list_file = stdout;
|
|
using_stdout = 1;
|
|
}
|
|
}
|
|
|
|
if (listing & LISTING_NOFORM)
|
|
paper_height = 0;
|
|
|
|
if (listing & LISTING_LISTING)
|
|
listing_listing (name);
|
|
|
|
if (listing & LISTING_SYMBOLS)
|
|
list_symbol_table ();
|
|
|
|
if (! using_stdout)
|
|
{
|
|
if (fclose (list_file) == EOF)
|
|
as_warn (_("can't close %s: %s"), name, xstrerror (errno));
|
|
}
|
|
|
|
if (last_open_file)
|
|
fclose (last_open_file);
|
|
}
|
|
|
|
void
|
|
listing_file (const char *name)
|
|
{
|
|
fn = name;
|
|
}
|
|
|
|
void
|
|
listing_eject (int ignore ATTRIBUTE_UNUSED)
|
|
{
|
|
if (listing)
|
|
listing_tail->edict = EDICT_EJECT;
|
|
}
|
|
|
|
void
|
|
listing_flags (int ignore ATTRIBUTE_UNUSED)
|
|
{
|
|
while ((*input_line_pointer++) && (*input_line_pointer != '\n'))
|
|
input_line_pointer++;
|
|
|
|
}
|
|
|
|
/* Turn listing on or off. An argument of 0 means to turn off
|
|
listing. An argument of 1 means to turn on listing. An argument
|
|
of 2 means to turn off listing, but as of the next line; that is,
|
|
the current line should be listed, but the next line should not. */
|
|
|
|
void
|
|
listing_list (int on)
|
|
{
|
|
if (listing)
|
|
{
|
|
switch (on)
|
|
{
|
|
case 0:
|
|
if (listing_tail->edict == EDICT_LIST)
|
|
listing_tail->edict = EDICT_NONE;
|
|
else
|
|
listing_tail->edict = EDICT_NOLIST;
|
|
break;
|
|
case 1:
|
|
if (listing_tail->edict == EDICT_NOLIST
|
|
|| listing_tail->edict == EDICT_NOLIST_NEXT)
|
|
listing_tail->edict = EDICT_NONE;
|
|
else
|
|
listing_tail->edict = EDICT_LIST;
|
|
break;
|
|
case 2:
|
|
listing_tail->edict = EDICT_NOLIST_NEXT;
|
|
break;
|
|
default:
|
|
abort ();
|
|
}
|
|
}
|
|
}
|
|
|
|
void
|
|
listing_psize (int width_only)
|
|
{
|
|
if (! width_only)
|
|
{
|
|
paper_height = get_absolute_expression ();
|
|
|
|
if (paper_height < 0 || paper_height > 1000)
|
|
{
|
|
paper_height = 0;
|
|
as_warn (_("strange paper height, set to no form"));
|
|
}
|
|
|
|
if (*input_line_pointer != ',')
|
|
{
|
|
demand_empty_rest_of_line ();
|
|
return;
|
|
}
|
|
|
|
++input_line_pointer;
|
|
}
|
|
|
|
paper_width = get_absolute_expression ();
|
|
|
|
demand_empty_rest_of_line ();
|
|
}
|
|
|
|
void
|
|
listing_nopage (int ignore ATTRIBUTE_UNUSED)
|
|
{
|
|
paper_height = 0;
|
|
}
|
|
|
|
void
|
|
listing_title (int depth)
|
|
{
|
|
int quoted;
|
|
char *start;
|
|
char *ttl;
|
|
unsigned int length;
|
|
|
|
SKIP_WHITESPACE ();
|
|
if (*input_line_pointer != '\"')
|
|
quoted = 0;
|
|
else
|
|
{
|
|
quoted = 1;
|
|
++input_line_pointer;
|
|
}
|
|
|
|
start = input_line_pointer;
|
|
|
|
while (*input_line_pointer)
|
|
{
|
|
if (quoted
|
|
? *input_line_pointer == '\"'
|
|
: is_end_of_line[(unsigned char) *input_line_pointer])
|
|
{
|
|
if (listing)
|
|
{
|
|
length = input_line_pointer - start;
|
|
ttl = xmalloc (length + 1);
|
|
memcpy (ttl, start, length);
|
|
ttl[length] = 0;
|
|
listing_tail->edict = depth ? EDICT_SBTTL : EDICT_TITLE;
|
|
listing_tail->edict_arg = ttl;
|
|
}
|
|
if (quoted)
|
|
input_line_pointer++;
|
|
demand_empty_rest_of_line ();
|
|
return;
|
|
}
|
|
else if (*input_line_pointer == '\n')
|
|
{
|
|
as_bad (_("new line in title"));
|
|
demand_empty_rest_of_line ();
|
|
return;
|
|
}
|
|
else
|
|
{
|
|
input_line_pointer++;
|
|
}
|
|
}
|
|
}
|
|
|
|
void
|
|
listing_source_line (unsigned int line)
|
|
{
|
|
if (listing)
|
|
{
|
|
new_frag ();
|
|
listing_tail->hll_line = line;
|
|
new_frag ();
|
|
}
|
|
}
|
|
|
|
void
|
|
listing_source_file (const char *file)
|
|
{
|
|
if (listing)
|
|
listing_tail->hll_file = file_info (file);
|
|
}
|
|
|
|
#else
|
|
|
|
/* Dummy functions for when compiled without listing enabled. */
|
|
|
|
void
|
|
listing_flags (int ignore)
|
|
{
|
|
s_ignore (0);
|
|
}
|
|
|
|
void
|
|
listing_list (int on)
|
|
{
|
|
s_ignore (0);
|
|
}
|
|
|
|
void
|
|
listing_eject (int ignore)
|
|
{
|
|
s_ignore (0);
|
|
}
|
|
|
|
void
|
|
listing_psize (int ignore)
|
|
{
|
|
s_ignore (0);
|
|
}
|
|
|
|
void
|
|
listing_nopage (int ignore)
|
|
{
|
|
s_ignore (0);
|
|
}
|
|
|
|
void
|
|
listing_title (int depth)
|
|
{
|
|
s_ignore (0);
|
|
}
|
|
|
|
void
|
|
listing_file (const char *name)
|
|
{
|
|
}
|
|
|
|
void
|
|
listing_newline (char *name)
|
|
{
|
|
}
|
|
|
|
void
|
|
listing_source_line (unsigned int n)
|
|
{
|
|
}
|
|
|
|
void
|
|
listing_source_file (const char *n)
|
|
{
|
|
}
|
|
|
|
#endif
|