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authorRichard Henderson <rth@redhat.com>1999-05-03 07:29:11 +0000
committerRichard Henderson <rth@redhat.com>1999-05-03 07:29:11 +0000
commit252b5132c753830d5fd56823373aed85f2a0db63 (patch)
tree1af963bfd8d3e55167b81def4207f175eaff3a56 /gprof/source.c
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19990502 sourceware importbinu_ss_19990502
Diffstat (limited to 'gprof/source.c')
-rw-r--r--gprof/source.c223
1 files changed, 223 insertions, 0 deletions
diff --git a/gprof/source.c b/gprof/source.c
new file mode 100644
index 0000000..4901a04
--- /dev/null
+++ b/gprof/source.c
@@ -0,0 +1,223 @@
+/*
+ * 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 = xstrdup (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;
+}