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/*
* Keeps track of source files.
*/
#include "gprof.h"
#include "libiberty.h"
#include "search_list.h"
#include "source.h"
#define EXT_ANNO "-ann" /* postfix of annotated files */
/*
* Default option values:
*/
bool create_annotation_files = FALSE;
Search_List src_search_list =
{0, 0};
Source_File *first_src_file = 0;
Source_File *
DEFUN (source_file_lookup_path, (path), const char *path)
{
Source_File *sf;
for (sf = first_src_file; sf; sf = sf->next)
{
if (strcmp (path, sf->name) == 0)
{
break;
}
}
if (!sf)
{
/* create a new source file descriptor: */
sf = (Source_File *) xmalloc (sizeof (*sf));
memset (sf, 0, sizeof (*sf));
sf->name = strdup (path);
sf->next = first_src_file;
first_src_file = sf;
}
return sf;
}
Source_File *
DEFUN (source_file_lookup_name, (filename), const char *filename)
{
const char *fname;
Source_File *sf;
/*
* The user cannot know exactly how a filename will be stored in
* the debugging info (e.g., ../include/foo.h
* vs. /usr/include/foo.h). So we simply compare the filename
* component of a path only:
*/
for (sf = first_src_file; sf; sf = sf->next)
{
fname = strrchr (sf->name, '/');
if (fname)
{
++fname;
}
else
{
fname = sf->name;
}
if (strcmp (filename, fname) == 0)
{
break;
}
}
return sf;
}
FILE *
DEFUN (annotate_source, (sf, max_width, annote, arg),
Source_File * sf AND int max_width
AND void (*annote) PARAMS ((char *buf, int w, int l, void *arg))
AND void *arg)
{
static bool first_file = TRUE;
int i, line_num, nread;
bool new_line;
char buf[8192];
char fname[PATH_MAX];
char *annotation, *name_only;
FILE *ifp, *ofp;
Search_List_Elem *sle = src_search_list.head;
/*
* Open input file. If open fails, walk along search-list until
* open succeeds or reaching end of list:
*/
strcpy (fname, sf->name);
if (sf->name[0] == '/')
{
sle = 0; /* don't use search list for absolute paths */
}
name_only = 0;
while (TRUE)
{
DBG (SRCDEBUG, printf ("[annotate_source]: looking for %s, trying %s\n",
sf->name, fname));
ifp = fopen (fname, FOPEN_RB);
if (ifp)
{
break;
}
if (!sle && !name_only)
{
name_only = strrchr (sf->name, '/');
if (name_only)
{
/* try search-list again, but this time with name only: */
++name_only;
sle = src_search_list.head;
}
}
if (sle)
{
strcpy (fname, sle->path);
strcat (fname, "/");
if (name_only)
{
strcat (fname, name_only);
}
else
{
strcat (fname, sf->name);
}
sle = sle->next;
}
else
{
if (errno == ENOENT)
{
fprintf (stderr, "%s: could not locate `%s'\n",
whoami, sf->name);
}
else
{
perror (sf->name);
}
return 0;
}
}
ofp = stdout;
if (create_annotation_files)
{
/* try to create annotated source file: */
const char *filename;
/* create annotation files in the current working directory: */
filename = strrchr (sf->name, '/');
if (filename)
{
++filename;
}
else
{
filename = sf->name;
}
strcpy (fname, filename);
strcat (fname, EXT_ANNO);
ofp = fopen (fname, "w");
if (!ofp)
{
perror (fname);
return 0;
}
}
/*
* Print file names if output goes to stdout and there are
* more than one source file:
*/
if (ofp == stdout)
{
if (first_file)
{
first_file = FALSE;
}
else
{
fputc ('\n', ofp);
}
if (first_output)
{
first_output = FALSE;
}
else
{
fprintf (ofp, "\f\n");
}
fprintf (ofp, "*** File %s:\n", sf->name);
}
annotation = xmalloc (max_width + 1);
line_num = 1;
new_line = TRUE;
while ((nread = fread (buf, 1, sizeof (buf), ifp)) > 0)
{
for (i = 0; i < nread; ++i)
{
if (new_line)
{
(*annote) (annotation, max_width, line_num, arg);
fputs (annotation, ofp);
++line_num;
new_line = FALSE;
}
new_line = (buf[i] == '\n');
fputc (buf[i], ofp);
}
}
free (annotation);
return ofp;
}
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