From: Alan Modra <amodra@gmail.com>
Date: Fri, 1 Jun 2012 01:04:29 +0000 (+0000)
Subject: 	* addr2line.c (translate_addresses): Truncate input addresses to
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=670b0bad30115b2324a83f7df343cc83f8d0b901;p=binutils-gdb.git

	* addr2line.c (translate_addresses): Truncate input addresses to
	arch_size bits.  Avoid undefined shift.  Print '?' for zero line.
---

diff --git a/binutils/ChangeLog b/binutils/ChangeLog
index 2b916a8f9a4..14d720f2842 100644
--- a/binutils/ChangeLog
+++ b/binutils/ChangeLog
@@ -1,3 +1,8 @@
+2012-06-01  Alan Modra  <amodra@gmail.com>
+
+	* addr2line.c (translate_addresses): Truncate input addresses to
+	arch_size bits.  Avoid undefined shift.  Print '?' for zero line.
+
 2012-05-30  Nick Clifton  <nickc@redhat.com>
 
 	* readelf.c (process_section_headers): Correct bug in previous
diff --git a/binutils/addr2line.c b/binutils/addr2line.c
index d0f45671cb5..663da4570e5 100644
--- a/binutils/addr2line.c
+++ b/binutils/addr2line.c
@@ -196,8 +196,6 @@ find_offset_in_section (bfd *abfd, asection *section)
 static void
 translate_addresses (bfd *abfd, asection *section)
 {
-  const struct elf_backend_data * bed;
-
   int read_stdin = (naddr == 0);
 
   for (;;)
@@ -218,11 +216,15 @@ translate_addresses (bfd *abfd, asection *section)
 	  pc = bfd_scan_vma (*addr++, NULL, 16);
 	}
 
-      if (bfd_get_flavour (abfd) == bfd_target_elf_flavour
-	  && (bed = get_elf_backend_data (abfd)) != NULL
-	  && bed->sign_extend_vma
-	  && (pc & (bfd_vma) 1 << (bed->s->arch_size - 1)))
-	pc |= ((bfd_vma) -1) << bed->s->arch_size;
+      if (bfd_get_flavour (abfd) == bfd_target_elf_flavour)
+	{
+	  const struct elf_backend_data *bed = get_elf_backend_data (abfd);
+	  bfd_vma sign = (bfd_vma) 1 << (bed->s->arch_size - 1);
+
+	  pc &= (sign << 1) - 1;
+	  if (bed->sign_extend_vma)
+	    pc = (pc ^ sign) - sign;
+	}
 
       if (with_addresses)
         {
@@ -290,7 +292,11 @@ translate_addresses (bfd *abfd, asection *section)
                     filename = h + 1;
                 }
 
-              printf ("%s:%u\n", filename ? filename : "??", line);
+              printf ("%s:", filename ? filename : "??");
+	      if (line != 0)
+		printf ("%u\n", line);
+	      else
+		printf ("?\n");
               if (!unwind_inlines)
                 found = FALSE;
               else