PR24065, 32-bit objcopy fails with 64-bit address ... out of range

	PR 23699
	PR 24065
	* ihex.c (ihex_write_object_contents): Properly check 32-bit
	address range.

diff --git a/bfd/ChangeLog b/bfd/ChangeLog
index 3d619e46ed2f80d6bbea085afcfabdcaba1bc5fe..3b24c239e50444afed35eb2b47ec72b1b8c1889f 100644 (file)
--- a/bfd/ChangeLog
+++ b/bfd/ChangeLog
@@ -1,3 +1,10 @@
+2019-01-08  Alan Modra  <amodra@gmail.com>
+
+       PR 23699
+       PR 24065
+       * ihex.c (ihex_write_object_contents): Properly check 32-bit
+       address range.
+
 2019-01-05  Yoshinori Sato <ysato@users.sourceforge.jp>
 
        * bfd/archures.c: Add bfd_mach_rx_v2 and bfd_mach_rx_v3.

diff --git a/bfd/ihex.c b/bfd/ihex.c
index 5d7d8fffeaaabc992e3923866e679e7e1daaf644..101e0a76155fc48f95312c08307739cf9c1ee5eb 100644 (file)
--- a/bfd/ihex.c
+++ b/bfd/ihex.c
@@ -775,25 +775,29 @@ ihex_write_object_contents (bfd *abfd)
       bfd_vma where;
       bfd_byte *p;
       bfd_size_type count;
-      const bfd_vma sign = (bfd_vma) 0xffffffff80000000ULL;
-      const bfd_vma top = (bfd_vma) 0xffffffff00000000ULL;
 
       where = l->where;
 
-      /* Check for unacceptable addresses sign extension.
-        See PR 23699 for more details.  */
-      if ((where & sign) == top
-         || ((where & top) != 0 && (where & top) != top))
-       {
-         _bfd_error_handler
-           /* xgettext:c-format */
-           (_("%pB 64-bit address %#" PRIx64 " out of range for Intel Hex file"),
-            abfd, (uint64_t) where);
-         bfd_set_error (bfd_error_bad_value);
-         return FALSE;
-       }
-
+#ifdef BFD64
+      /* IHex only supports 32-bit addresses, and we want to check
+        that 64-bit addresses are in range.  This isn't quite as
+        obvious as it may seem, since some targets have 32-bit
+        addresses that are sign extended to 64 bits.  So complain
+        only if addresses overflow both unsigned and signed 32-bit
+        integers.  */
+      if (where > 0xffffffff
+         && where + 0x80000000 > 0xffffffff)
+       {
+         _bfd_error_handler
+           /* xgettext:c-format */
+           (_("%pB 64-bit address %#" PRIx64
+              " out of range for Intel Hex file"),
+            abfd, (uint64_t) where);
+         bfd_set_error (bfd_error_bad_value);
+         return FALSE;
+       }
       where &= 0xffffffff;
+#endif
 
       p = l->data;
       count = l->size;