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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 */
} /* for */
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;
} /* if */
return sf;
} /* source_file_lookup_path */
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 */
if (strcmp(filename, fname) == 0) {
break;
} /* if */
} /* for */
return sf;
} /* source_file_lookup_name */
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 */
} /* if */
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 */
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 */
} /* if */
if (sle) {
strcpy(fname, sle->path);
strcat(fname, "/");
if (name_only) {
strcat(fname, name_only);
} else {
strcat(fname, sf->name);
} /* if */
sle = sle->next;
} else {
if (errno == ENOENT) {
fprintf(stderr, "%s: could not locate `%s'\n",
whoami, sf->name);
} else {
perror(sf->name);
} /* if */
return 0;
} /* if */
} /* while */
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;
} /* if */
strcpy(fname, filename);
strcat(fname, EXT_ANNO);
ofp = fopen(fname, "w");
if (!ofp) {
perror(fname);
return 0;
} /* if */
} /* if */
/*
* 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 */
if (first_output) {
first_output = FALSE;
} else {
fprintf(ofp, "\f\n");
} /* if */
fprintf(ofp, "*** File %s:\n", sf->name);
} /* if */
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;
} /* if */
new_line = (buf[i] == '\n');
fputc(buf[i], ofp);
} /* for */
} /* while */
free(annotation);
return ofp;
} /* annotate_source */
/*** end of source.c ***/
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