From 232fb1a3f6e27a28b1f011564322f7b4d3b47248 Mon Sep 17 00:00:00 2001
From: Nick Clifton <nickc@redhat.com>
Date: Tue, 22 Jun 1999 02:41:43 +0000
Subject: [PATCH] Catch overflow in 22_PCREL reloc.

---
 bfd/ChangeLog    | 5 +++++
 bfd/elf32-v850.c | 4 ++++
 2 files changed, 9 insertions(+)

diff --git a/bfd/ChangeLog b/bfd/ChangeLog
index 8471a7e721..ff2cfdfdba 100644
--- a/bfd/ChangeLog
+++ b/bfd/ChangeLog
@@ -1,3 +1,8 @@
+1999-06-22  Nick Clifton  <nickc@cygnus.com>
+
+	* elf32-v850.c (v850_elf_final_link_relocate): Catch overflow
+	handling R_V850_22_PCREL relocation.
+
 1999-06-21  Ian Lance Taylor  <ian@zembu.com>
 
 	* coff-arm.c (arm_emit_base_file_entry): Explicitly declare return
diff --git a/bfd/elf32-v850.c b/bfd/elf32-v850.c
index 08d4b75c23..4ca60e8083 100644
--- a/bfd/elf32-v850.c
+++ b/bfd/elf32-v850.c
@@ -1369,6 +1369,10 @@ v850_elf_final_link_relocate (howto, input_bfd, output_bfd,
 		+ input_section->output_offset
 		+ offset);
 
+      /* If the sign extension will corrupt the value then we have overflowed.  */
+      if (((value & 0xff000000) != 0x0) && ((value & 0xff000000) != 0xff000000))
+	return bfd_reloc_overflow;
+      
       value = SEXT24 (value);  /* Only the bottom 24 bits of the PC are valid */
       break;