diff --git a/newlib/ChangeLog b/newlib/ChangeLog
index a57bcd7ef..46dee570b 100644
--- a/newlib/ChangeLog
+++ b/newlib/ChangeLog
@@ -1,3 +1,11 @@
+2013-06-24 Yaakov Selkowitz <yselkowitz@users.sourceforge.net>
+
+ * libc/include/string.h (rawmemchr): Declare.
+ * libc/string/Makefile.am (ELIX_4_SOURCES): Add rawmemchr.c.
+ (CHEWOUT_FILES): Add rawmemchr.def.
+ * libc/string/Makefile.in: Regenerate.
+ * libc/string/rawmemchr.c: New file.
+
2013-06-24 Terraneo Federico <fede.tft@hotmail.it>
* libc/reent/reent.c (_reclaim_reent): Free also _misc and
diff --git a/newlib/libc/include/string.h b/newlib/libc/include/string.h
index d11d32c33..5f1329ee0 100644
--- a/newlib/libc/include/string.h
+++ b/newlib/libc/include/string.h
@@ -57,6 +57,7 @@ _PTR _EXFUN(memccpy,(_PTR, const _PTR, int, size_t));
_PTR _EXFUN(mempcpy,(_PTR, const _PTR, size_t));
_PTR _EXFUN(memmem, (const _PTR, size_t, const _PTR, size_t));
_PTR _EXFUN(memrchr,(const _PTR, int, size_t));
+_PTR _EXFUN(rawmemchr,(const _PTR, int));
char *_EXFUN(rindex,(const char *, int));
char *_EXFUN(stpcpy,(char *, const char *));
char *_EXFUN(stpncpy,(char *, const char *, size_t));
diff --git a/newlib/libc/string/Makefile.am b/newlib/libc/string/Makefile.am
index 9c12b6ecb..e9adbe169 100644
--- a/newlib/libc/string/Makefile.am
+++ b/newlib/libc/string/Makefile.am
@@ -104,6 +104,7 @@ else
ELIX_4_SOURCES = \
memmem.c \
memrchr.c \
+ rawmemchr.c \
wcscasecmp.c \
wcsncasecmp.c
endif !ELIX_LEVEL_3
@@ -141,7 +142,7 @@ wcsncmp.def wcsncpy.def wcsnlen.def wcspbrk.def \
wcsrchr.def wcsspn.def wcsstr.def wcstok.def \
wcswidth.def wcsxfrm.def wcwidth.def wmemchr.def \
wmemcmp.def wmemcpy.def wmemmove.def wmemset.def \
-memmem.def memrchr.def
+memmem.def memrchr.def rawmemchr.def
SUFFIXES = .def
diff --git a/newlib/libc/string/Makefile.in b/newlib/libc/string/Makefile.in
index 2c3908b9e..255ee0704 100644
--- a/newlib/libc/string/Makefile.in
+++ b/newlib/libc/string/Makefile.in
@@ -120,6 +120,7 @@ am__objects_1 = lib_a-bcopy.$(OBJEXT) lib_a-bzero.$(OBJEXT) \
@ELIX_LEVEL_1_FALSE@ lib_a-wcsdup.$(OBJEXT)
@ELIX_LEVEL_1_FALSE@@ELIX_LEVEL_2_FALSE@@ELIX_LEVEL_3_FALSE@am__objects_3 = lib_a-memmem.$(OBJEXT) \
@ELIX_LEVEL_1_FALSE@@ELIX_LEVEL_2_FALSE@@ELIX_LEVEL_3_FALSE@ lib_a-memrchr.$(OBJEXT) \
+@ELIX_LEVEL_1_FALSE@@ELIX_LEVEL_2_FALSE@@ELIX_LEVEL_3_FALSE@ lib_a-rawmemchr.$(OBJEXT) \
@ELIX_LEVEL_1_FALSE@@ELIX_LEVEL_2_FALSE@@ELIX_LEVEL_3_FALSE@ lib_a-wcscasecmp.$(OBJEXT) \
@ELIX_LEVEL_1_FALSE@@ELIX_LEVEL_2_FALSE@@ELIX_LEVEL_3_FALSE@ lib_a-wcsncasecmp.$(OBJEXT)
@USE_LIBTOOL_FALSE@am_lib_a_OBJECTS = $(am__objects_1) \
@@ -146,6 +147,7 @@ am__objects_4 = bcopy.lo bzero.lo index.lo memchr.lo memcmp.lo \
@ELIX_LEVEL_1_FALSE@ wcpcpy.lo wcpncpy.lo wcsdup.lo
@ELIX_LEVEL_1_FALSE@@ELIX_LEVEL_2_FALSE@@ELIX_LEVEL_3_FALSE@am__objects_6 = memmem.lo \
@ELIX_LEVEL_1_FALSE@@ELIX_LEVEL_2_FALSE@@ELIX_LEVEL_3_FALSE@ memrchr.lo \
+@ELIX_LEVEL_1_FALSE@@ELIX_LEVEL_2_FALSE@@ELIX_LEVEL_3_FALSE@ rawmemchr.lo \
@ELIX_LEVEL_1_FALSE@@ELIX_LEVEL_2_FALSE@@ELIX_LEVEL_3_FALSE@ wcscasecmp.lo \
@ELIX_LEVEL_1_FALSE@@ELIX_LEVEL_2_FALSE@@ELIX_LEVEL_3_FALSE@ wcsncasecmp.lo
@USE_LIBTOOL_TRUE@am_libstring_la_OBJECTS = $(am__objects_4) \
@@ -410,6 +412,7 @@ GENERAL_SOURCES = \
@ELIX_LEVEL_1_FALSE@@ELIX_LEVEL_2_FALSE@@ELIX_LEVEL_3_FALSE@ELIX_4_SOURCES = \
@ELIX_LEVEL_1_FALSE@@ELIX_LEVEL_2_FALSE@@ELIX_LEVEL_3_FALSE@ memmem.c \
@ELIX_LEVEL_1_FALSE@@ELIX_LEVEL_2_FALSE@@ELIX_LEVEL_3_FALSE@ memrchr.c \
+@ELIX_LEVEL_1_FALSE@@ELIX_LEVEL_2_FALSE@@ELIX_LEVEL_3_FALSE@ rawmemchr.c \
@ELIX_LEVEL_1_FALSE@@ELIX_LEVEL_2_FALSE@@ELIX_LEVEL_3_FALSE@ wcscasecmp.c \
@ELIX_LEVEL_1_FALSE@@ELIX_LEVEL_2_FALSE@@ELIX_LEVEL_3_FALSE@ wcsncasecmp.c
@@ -440,7 +443,7 @@ wcsncmp.def wcsncpy.def wcsnlen.def wcspbrk.def \
wcsrchr.def wcsspn.def wcsstr.def wcstok.def \
wcswidth.def wcsxfrm.def wcwidth.def wmemchr.def \
wmemcmp.def wmemcpy.def wmemmove.def wmemset.def \
-memmem.def memrchr.def
+memmem.def memrchr.def rawmemchr.def
SUFFIXES = .def
CHEW = ../../doc/makedoc -f $(srcdir)/../../doc/doc.str
@@ -1007,6 +1010,12 @@ lib_a-memrchr.o: memrchr.c
lib_a-memrchr.obj: memrchr.c
$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(lib_a_CFLAGS) $(CFLAGS) -c -o lib_a-memrchr.obj `if test -f 'memrchr.c'; then $(CYGPATH_W) 'memrchr.c'; else $(CYGPATH_W) '$(srcdir)/memrchr.c'; fi`
+lib_a-rawmemchr.o: rawmemchr.c
+ $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(lib_a_CFLAGS) $(CFLAGS) -c -o lib_a-rawmemchr.o `test -f 'rawmemchr.c' || echo '$(srcdir)/'`rawmemchr.c
+
+lib_a-rawmemchr.obj: rawmemchr.c
+ $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(lib_a_CFLAGS) $(CFLAGS) -c -o lib_a-rawmemchr.obj `if test -f 'rawmemchr.c'; then $(CYGPATH_W) 'rawmemchr.c'; else $(CYGPATH_W) '$(srcdir)/rawmemchr.c'; fi`
+
lib_a-wcscasecmp.o: wcscasecmp.c
$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(lib_a_CFLAGS) $(CFLAGS) -c -o lib_a-wcscasecmp.o `test -f 'wcscasecmp.c' || echo '$(srcdir)/'`wcscasecmp.c
diff --git a/newlib/libc/string/rawmemchr.c b/newlib/libc/string/rawmemchr.c
new file mode 100644
index 000000000..a9e2acd85
--- /dev/null
+++ b/newlib/libc/string/rawmemchr.c
@@ -0,0 +1,121 @@
+/*
+FUNCTION
+ <<rawmemchr>>---find character in memory
+
+INDEX
+ rawmemchr
+
+ANSI_SYNOPSIS
+ #include <string.h>
+ void *rawmemchr(const void *<[src]>, int <[c]>);
+
+TRAD_SYNOPSIS
+ #include <string.h>
+ void *rawmemchr(<[src]>, <[c]>)
+ void *<[src]>;
+ void *<[c]>;
+
+DESCRIPTION
+ This function searches memory starting at <<*<[src]>>> for the
+ character <[c]>. The search only ends with the first occurrence
+ of <[c]>; in particular, <<NUL>> does not terminate the search.
+ No bounds checking is performed, so this function should only
+ be used when it is certain that the character <[c]> will be found.
+
+RETURNS
+ A pointer to the first occurance of character <[c]>.
+
+PORTABILITY
+<<rawmemchr>> is a GNU extension.
+
+<<rawmemchr>> requires no supporting OS subroutines.
+
+QUICKREF
+ rawmemchr
+*/
+
+#include <_ansi.h>
+#include <string.h>
+#include <limits.h>
+
+/* Nonzero if X is not aligned on a "long" boundary. */
+#define UNALIGNED(X) ((long)X & (sizeof (long) - 1))
+
+/* How many bytes are loaded each iteration of the word copy loop. */
+#define LBLOCKSIZE (sizeof (long))
+
+/* Threshhold for punting to the bytewise iterator. */
+#define TOO_SMALL(LEN) ((LEN) < LBLOCKSIZE)
+
+#if LONG_MAX == 2147483647L
+#define DETECTNULL(X) (((X) - 0x01010101) & ~(X) & 0x80808080)
+#else
+#if LONG_MAX == 9223372036854775807L
+/* Nonzero if X (a long int) contains a NULL byte. */
+#define DETECTNULL(X) (((X) - 0x0101010101010101) & ~(X) & 0x8080808080808080)
+#else
+#error long int is not a 32bit or 64bit type.
+#endif
+#endif
+
+#ifndef DETECTNULL
+#error long int is not a 32bit or 64bit byte
+#endif
+
+/* DETECTCHAR returns nonzero if (long)X contains the byte used
+ to fill (long)MASK. */
+#define DETECTCHAR(X,MASK) (DETECTNULL(X ^ MASK))
+
+_PTR
+_DEFUN (rawmemchr, (src_void, c),
+ _CONST _PTR src_void _AND
+ int c)
+{
+ _CONST unsigned char *src = (_CONST unsigned char *) src_void;
+ unsigned char d = c;
+
+#if !defined(PREFER_SIZE_OVER_SPEED) && !defined(__OPTIMIZE_SIZE__)
+ unsigned long *asrc;
+ unsigned long mask;
+ int i;
+
+ while (UNALIGNED (src))
+ {
+ if (*src == d)
+ return (void *) src;
+ src++;
+ }
+
+ /* If we get this far, we know that src is word-aligned. */
+ /* The fast code reads the source one word at a time and only
+ performs the bytewise search on word-sized segments if they
+ contain the search character, which is detected by XORing
+ the word-sized segment with a word-sized block of the search
+ character and then detecting for the presence of NUL in the
+ result. */
+ asrc = (unsigned long *) src;
+ mask = d << 8 | d;
+ mask = mask << 16 | mask;
+ for (i = 32; i < LBLOCKSIZE * 8; i <<= 1)
+ mask = (mask << i) | mask;
+
+ while (1)
+ {
+ if (DETECTCHAR (*asrc, mask))
+ break;
+ asrc++;
+ }
+
+ /* We have the matching word, now we resort to a bytewise loop. */
+
+ src = (unsigned char *) asrc;
+
+#endif // !PREFER_SIZE_OVER_SPEED && !__OPTIMIZE_SIZE__
+
+ while (1)
+ {
+ if (*src == d)
+ return (void *) src;
+ src++;
+ }
+}