Disable parts of gdb.base/source-dir.exp on remote host

[deliverable/binutils-gdb.git] / bfd / bfdio.c

diff --git a/bfd/bfdio.c b/bfd/bfdio.c
index 136fa8b1d3f0f43dddc6b76cb28efcdc19b9b25d..5f144bc7f3fee833ff97924ec8f2e3eec37364b9 100644 (file)
--- a/bfd/bfdio.c
+++ b/bfd/bfdio.c
@@ -1,6 +1,6 @@
 /* Low-level I/O routines for BFDs.
 
 /* Low-level I/O routines for BFDs.
 

-   Copyright (C) 1990-2018 Free Software Foundation, Inc.
+   Copyright (C) 1990-2020 Free Software Foundation, Inc.

 
    Written by Cygnus Support.
 
 
    Written by Cygnus Support.
 


@@ -25,6 +25,10 @@
 #include <limits.h>
 #include "bfd.h"
 #include "libbfd.h"
 #include <limits.h>
 #include "bfd.h"
 #include "libbfd.h"

+#include "aout/ar.h"
+#if defined (_WIN32)
+#include <windows.h>
+#endif

 
 #ifndef S_IXUSR
 #define S_IXUSR 0100    /* Execute by owner.  */
 
 #ifndef S_IXUSR
 #define S_IXUSR 0100    /* Execute by owner.  */


@@ -92,12 +96,7 @@ _bfd_real_fopen (const char *filename, const char *modes)
      In fopen-vms.h, they are separated from the mode with a comma.
      Split here.  */
   vms_attr = strchr (modes, ',');
      In fopen-vms.h, they are separated from the mode with a comma.
      Split here.  */
   vms_attr = strchr (modes, ',');

-  if (vms_attr == NULL)
-    {
-      /* No attributes.  */
-      return close_on_exec (fopen (filename, modes));
-    }
-  else
+  if (vms_attr != NULL)

     {
       /* Attributes found.  Split.  */
       size_t modes_len = strlen (modes) + 1;
     {
       /* Attributes found.  Split.  */
       size_t modes_len = strlen (modes) + 1;


@@ -115,13 +114,38 @@ _bfd_real_fopen (const char *filename, const char *modes)
        }
       return close_on_exec (fopen (filename, at[0], at[1], at[2]));
     }
        }
       return close_on_exec (fopen (filename, at[0], at[1], at[2]));
     }

-#else /* !VMS */
-#if defined (HAVE_FOPEN64)
+
+#elif defined (_WIN32)
+  size_t filelen = strlen (filename) + 1;
+
+  if (filelen > MAX_PATH - 1)
+    {
+      FILE * file;
+      char * fullpath = (char *) malloc (filelen + 8);
+      int    i;
+
+      /* Add a Microsoft recommended prefix that
+        will allow the extra-long path to work.  */
+      strcpy (fullpath, "\\\\?\\");
+      strcat (fullpath, filename);
+
+      /* Convert any UNIX style path separators into the DOS form.  */
+      for (i = 0; fullpath[i]; i++)
+        {
+          if (IS_UNIX_DIR_SEPARATOR (fullpath[i]))
+           fullpath[i] = '\\';
+        }
+
+      file = close_on_exec (fopen (fullpath, modes));
+      free (fullpath);
+      return file;
+    }
+
+#elif defined (HAVE_FOPEN64)

   return close_on_exec (fopen64 (filename, modes));
   return close_on_exec (fopen64 (filename, modes));

-#else
-  return close_on_exec (fopen (filename, modes));

 #endif
 #endif

-#endif /* !VMS */
+
+  return close_on_exec (fopen (filename, modes));

 }
 
 /*
 }
 
 /*


@@ -186,6 +210,7 @@ bfd_bread (void *ptr, bfd_size_type size, bfd *abfd)
       offset += abfd->origin;
       abfd = abfd->my_archive;
     }
       offset += abfd->origin;
       abfd = abfd->my_archive;
     }

+  offset += abfd->origin;

 
   /* If this is an archive element, don't read past the end of
      this element.  */
 
   /* If this is an archive element, don't read past the end of
      this element.  */


@@ -255,6 +280,7 @@ bfd_tell (bfd *abfd)
       offset += abfd->origin;
       abfd = abfd->my_archive;
     }
       offset += abfd->origin;
       abfd = abfd->my_archive;
     }

+  offset += abfd->origin;

 
   if (abfd->iovec == NULL)
     return 0;
 
   if (abfd->iovec == NULL)
     return 0;


@@ -315,6 +341,7 @@ bfd_seek (bfd *abfd, file_ptr position, int direction)
       offset += abfd->origin;
       abfd = abfd->my_archive;
     }
       offset += abfd->origin;
       abfd = abfd->my_archive;
     }

+  offset += abfd->origin;

 
   if (abfd->iovec == NULL)
     {
 
   if (abfd->iovec == NULL)
     {


@@ -330,6 +357,10 @@ bfd_seek (bfd *abfd, file_ptr position, int direction)
   if (direction != SEEK_CUR)
     position += offset;
 
   if (direction != SEEK_CUR)
     position += offset;
 

+  if ((direction == SEEK_CUR && position == 0)
+      || (direction == SEEK_SET && (ufile_ptr) position == abfd->where))
+    return 0;
+

   result = abfd->iovec->bseek (abfd, position, direction);
   if (result != 0)
     {
   result = abfd->iovec->bseek (abfd, position, direction);
   if (result != 0)
     {


@@ -411,17 +442,32 @@ DESCRIPTION
        of space for the 15 bazillon byte table it is about to read.
        This function at least allows us to answer the question, "is the
        size reasonable?".
        of space for the 15 bazillon byte table it is about to read.
        This function at least allows us to answer the question, "is the
        size reasonable?".

+
+       A return value of zero indicates the file size is unknown.

 */
 
 ufile_ptr
 bfd_get_size (bfd *abfd)
 {
 */
 
 ufile_ptr
 bfd_get_size (bfd *abfd)
 {

-  struct stat buf;
+  /* A size of 0 means we haven't yet called bfd_stat.  A size of 1
+     means we have a cached value of 0, ie. unknown.  */
+  if (abfd->size <= 1 || bfd_write_p (abfd))
+    {
+      struct stat buf;

 
 

-  if (bfd_stat (abfd, &buf) != 0)
-    return 0;
+      if (abfd->size == 1 && !bfd_write_p (abfd))
+       return 0;

 
 

-  return buf.st_size;
+      if (bfd_stat (abfd, &buf) != 0
+         || buf.st_size == 0
+         || buf.st_size - (ufile_ptr) buf.st_size != 0)
+       {
+         abfd->size = 1;
+         return 0;
+       }
+      abfd->size = buf.st_size;
+    }
+  return abfd->size;

 }
 
 /*
 }
 
 /*


@@ -441,11 +487,25 @@ DESCRIPTION
 ufile_ptr
 bfd_get_file_size (bfd *abfd)
 {
 ufile_ptr
 bfd_get_file_size (bfd *abfd)
 {

+  ufile_ptr file_size, archive_size = (ufile_ptr) -1;
+

   if (abfd->my_archive != NULL
       && !bfd_is_thin_archive (abfd->my_archive))
   if (abfd->my_archive != NULL
       && !bfd_is_thin_archive (abfd->my_archive))

-    return arelt_size (abfd);
+    {
+      struct areltdata *adata = (struct areltdata *) abfd->arelt_data;
+      archive_size = adata->parsed_size;
+      /* If the archive is compressed we can't compare against file size.  */
+      if (adata->arch_header != NULL
+         && memcmp (((struct ar_hdr *) adata->arch_header)->ar_fmag,
+                    "Z\012", 2) == 0)
+       return archive_size;
+      abfd = abfd->my_archive;
+    }

 
 

-  return bfd_get_size (abfd);
+  file_size = bfd_get_size (abfd);
+  if (archive_size < file_size)
+    return archive_size;
+  return file_size;

 }
 
 /*
 }
 
 /*


@@ -475,6 +535,7 @@ bfd_mmap (bfd *abfd, void *addr, bfd_size_type len,
       offset += abfd->origin;
       abfd = abfd->my_archive;
     }
       offset += abfd->origin;
       abfd = abfd->my_archive;
     }

+  offset += abfd->origin;

 
   if (abfd->iovec == NULL)
     {
 
   if (abfd->iovec == NULL)
     {


@@ -602,8 +663,7 @@ memory_bclose (struct bfd *abfd)
 {
   struct bfd_in_memory *bim = (struct bfd_in_memory *) abfd->iostream;
 
 {
   struct bfd_in_memory *bim = (struct bfd_in_memory *) abfd->iostream;
 

-  if (bim->buffer != NULL)
-    free (bim->buffer);
+  free (bim->buffer);

   free (bim);
   abfd->iostream = NULL;
 
   free (bim);
   abfd->iostream = NULL;