+2008-07-02 Jeff Johnston <jjohnstn@redhat.com>
+
+ * libc/machine/mips/strncpy.c (strncpy): Fix logic so unaligned
+ source data is taken care of before loop unrolling.
+
2008-06-25 Hans-Peter Nilsson <hp@axis.com>
Fix strict-aliasing issues with _strtod_r and Storeinc.
dst = (unsigned char *)dst0;
src = (unsigned const char *)src0;
+ /* Take care of any odd bytes in the source data because we
+ * want to unroll where we read ahead 2 or 4 bytes at a time and then
+ * check each byte for the null terminator. This can result in
+ * a segfault for the case where the source pointer is unaligned,
+ * the null terminator is in valid memory, but reading 2 or 4 bytes at a
+ * time blindly eventually goes outside of valid memory. */
+ while ((src & (UNROLL_FACTOR - 1)) != 0 && count > 0)
+ {
+ *dst++ = ch = *src++;
+ --count;
+ if (ch == '\0')
+ {
+ end = dst + count;
+ while (dst != end)
+ *dst++ = '\0';
+
+ return dst0;
+ }
+ }
+
if (__builtin_expect (count >= 4, 1))
{
odd_bytes = (count & (UNROLL_FACTOR - 1));