* elf64-mips.c (mips_elf64_be_swap_reloca_out): Handle type2 and type3.

[deliverable/binutils-gdb.git] / gdb / source.c

diff --git a/gdb/source.c b/gdb/source.c
index d6714d4b0466f640415c4d79da18ef7302a04515..c7c1ce2f5d29e1723ba24c9893f72d911df31f31 100644 (file)
--- a/gdb/source.c
+++ b/gdb/source.c
@@ -500,9 +500,28 @@ source_info (char *ignore, int from_tty)
 
   printf_filtered ("Source language is %s.\n", language_str (s->language));
   printf_filtered ("Compiled with %s debugging format.\n", s->debugformat);
+  printf_filtered ("%s preprocessor macro info.\n",
+                   s->macro_table ? "Includes" : "Does not include");
 }
 \f
 
+/* Return True if the file NAME exists and is a regular file */
+static int
+is_regular_file (const char *name)
+{
+  struct stat st;
+  const int status = stat (name, &st);
+
+  /* Stat should never fail except when the file does not exist.
+     If stat fails, analyze the source of error and return True
+     unless the file does not exist, to avoid returning false results
+     on obscure systems where stat does not work as expected.
+   */
+  if (status != 0)
+    return (errno != ENOENT);
+
+  return S_ISREG (st.st_mode);
+}
 
 /* Open a file named STRING, searching path PATH (dir names sep by some char)
    using mode MODE and protection bits PROT in the calls to open.
@@ -523,7 +542,7 @@ source_info (char *ignore, int from_tty)
    Otherwise, return -1, with errno set for the last name we tried to open.  */
 
 /*  >>>> This should only allow files of certain types,
-   >>>>  eg executable, non-directory */
+    >>>>  eg executable, non-directory */
 int
 openp (const char *path, int try_cwd_first, const char *string,
        int mode, int prot,
@@ -543,7 +562,7 @@ openp (const char *path, int try_cwd_first, const char *string,
   mode |= O_BINARY;
 #endif
 
-  if (try_cwd_first || IS_ABSOLUTE_PATH (string))
+  if ((try_cwd_first || IS_ABSOLUTE_PATH (string)) && is_regular_file (string))
     {
       int i;
       filename = alloca (strlen (string) + 1);
@@ -601,9 +620,12 @@ openp (const char *path, int try_cwd_first, const char *string,
       strcat (filename + len, SLASH_STRING);
       strcat (filename, string);
 
-      fd = open (filename, mode);
-      if (fd >= 0)
-       break;
+      if (is_regular_file (filename))
+      {
+        fd = open (filename, mode);
+        if (fd >= 0)
+          break;
+      }
     }
 
 done: