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authorDominik Vogt <vogt@linux.vnet.ibm.com>2015-11-09 17:12:56 +0100
committerAndreas Krebbel <krebbel@linux.vnet.ibm.com>2015-11-09 17:12:56 +0100
commitc4e0beacd71d4a65cfbe27466ae3d0403c39ead5 (patch)
tree09710f91615986de4df254d6132d3d7d986e3fa2
parent29f628db8835fd86b85ffb40d4a9ed5b1c28f1e6 (diff)
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binutils: Fix left shift of negative value.
This patch fixes all occurences of left-shifting negative constants in C code which is undefined by the C standard. binutils/ChangeLog: * dwarf.c (read_leb128): Fix left shift of negative value.
-rw-r--r--binutils/ChangeLog4
-rw-r--r--binutils/dwarf.c2
2 files changed, 5 insertions, 1 deletions
diff --git a/binutils/ChangeLog b/binutils/ChangeLog
index 8779082..bcbad22 100644
--- a/binutils/ChangeLog
+++ b/binutils/ChangeLog
@@ -1,3 +1,7 @@
+2015-11-09 Dominik Vogt <vogt@linux.vnet.ibm.com>
+
+ * dwarf.c (read_leb128): Fix left shift of negative value.
+
2015-11-03 Alan Modra <amodra@gmail.com>
* readelf (process_version_sections): Check DT_VERNEED and
diff --git a/binutils/dwarf.c b/binutils/dwarf.c
index c14049a..9f1baea 100644
--- a/binutils/dwarf.c
+++ b/binutils/dwarf.c
@@ -292,7 +292,7 @@ read_leb128 (unsigned char *data,
*length_return = num_read;
if (sign && (shift < 8 * sizeof (result)) && (byte & 0x40))
- result |= (dwarf_vma) -1 << shift;
+ result |= -((dwarf_vma) 1 << shift);
return result;
}