There is a mix between longs and long longs.

Index: newlib/libc/include/inttypes.h
===================================================================
RCS file: /cvs/src/src/newlib/libc/include/inttypes.h,v
retrieving revision 1.3
diff -u -p -r1.3 inttypes.h
--- newlib/libc/include/inttypes.h	16 Dec 2005 19:03:12 -0000	1.3
+++ newlib/libc/include/inttypes.h	8 Nov 2007 16:32:44 -0000
@@ -163,12 +163,12 @@
 
 
 /* 64-bit types */
-#if __have_longlong64
-#define __PRI64(x) __STRINGIFY(ll##x)
-#define __SCN64(x) __STRINGIFY(ll##x)
-#elif __have_long64
+#if __have_long64
 #define __PRI64(x) __STRINGIFY(l##x)
 #define __SCN64(x) __STRINGIFY(l##x)
+#elif __have_longlong64
+#define __PRI64(x) __STRINGIFY(ll##x)
+#define __SCN64(x) __STRINGIFY(ll##x)
 #else
 #define __PRI64(x) __STRINGIFY(x)
 #define __SCN64(x) __STRINGIFY(x)
@@ -217,12 +217,12 @@
 #endif
 
 /* max-bit types */
-#if __have_longlong64
-#define __PRIMAX(x) __STRINGIFY(ll##x)
-#define __SCNMAX(x) __STRINGIFY(ll##x)
-#elif __have_long64
+#if __have_long64
 #define __PRIMAX(x) __STRINGIFY(l##x)
 #define __SCNMAX(x) __STRINGIFY(l##x)
+#elif __have_longlong64
+#define __PRIMAX(x) __STRINGIFY(ll##x)
+#define __SCNMAX(x) __STRINGIFY(ll##x)
 #else
 #define __PRIMAX(x) __STRINGIFY(x)
 #define __SCNMAX(x) __STRINGIFY(x)
@@ -242,12 +242,12 @@
 #define SCNxMAX		__SCNMAX(x)
 
 /* ptr types */
-#if __have_longlong64
-#define __PRIPTR(x) __STRINGIFY(ll##x)
-#define __SCNPTR(x) __STRINGIFY(ll##x)
-#elif __have_long64
+#if __have_long64
 #define __PRIPTR(x) __STRINGIFY(l##x)
 #define __SCNPTR(x) __STRINGIFY(l##x)
+#elif __have_longlong64
+#define __PRIPTR(x) __STRINGIFY(ll##x)
+#define __SCNPTR(x) __STRINGIFY(ll##x)
 #else
 #define __PRIPTR(x) __STRINGIFY(x)
 #define __SCNPTR(x) __STRINGIFY(x)

We don't want u?int32_t to be long as our code assume in a lot of places to be
int.

Index: newlib/libc/include/stdint.h
===================================================================
RCS file: /cvs/src/src/newlib/libc/include/stdint.h,v
retrieving revision 1.10
diff -u -p -r1.10 stdint.h
--- newlib/libc/include/stdint.h	16 Aug 2006 21:39:43 -0000	1.10
+++ newlib/libc/include/stdint.h	12 Feb 2008 13:07:52 -0000
@@ -38,7 +38,7 @@ extern "C" {
 #if __STDINT_EXP(LONG_MAX) > 0x7fffffff
 #define __have_long64 1
 #elif __STDINT_EXP(LONG_MAX) == 0x7fffffff && !defined(__SPU__)
-#define __have_long32 1
+/* #define __have_long32 1 */
 #endif
 
 #if __STDINT_EXP(SCHAR_MAX) == 0x7f

Define the basic ia64 jump buffer

Index: newlib/libc/include/machine/setjmp.h
===================================================================
RCS file: /cvs/src/src/newlib/libc/include/machine/setjmp.h,v
retrieving revision 1.34
diff -u -p -r1.34 setjmp.h
--- newlib/libc/include/machine/setjmp.h	7 Nov 2007 21:42:24 -0000	1.34
+++ newlib/libc/include/machine/setjmp.h	11 Jan 2008 18:10:43 -0000
@@ -72,6 +72,11 @@ _BEGIN_STD_C
 #define _JBLEN  8
 #endif
 
+#ifdef __ia64__
+#define _JBTYPE long
+#define _JBLEN 70
+#endif
+
 #ifdef __i960__
 #define _JBLEN 35
 #endif

In mini-os we use a dynamic reentrency buffer.

Index: newlib/libc/include/sys/config.h
===================================================================
RCS file: /cvs/src/src/newlib/libc/include/sys/config.h,v
retrieving revision 1.47
diff -u -p -r1.47 config.h
--- newlib/libc/include/sys/config.h	15 Mar 2007 21:32:12 -0000	1.47
+++ newlib/libc/include/sys/config.h	8 Nov 2007 16:32:44 -0000
@@ -71,6 +71,10 @@
 #endif
 #endif
 
+#ifndef __DYNAMIC_REENT__
+#define __DYNAMIC_REENT__
+#endif
+
 #ifdef __mn10200__
 #define __SMALL_BITFIELDS
 #endif

Dynamic pointer to our reentrancy zone

Index: newlib/libc/reent/getreent.c
===================================================================
RCS file: /cvs/src/src/newlib/libc/reent/getreent.c,v
retrieving revision 1.2
diff -u -p -r1.2 getreent.c
--- newlib/libc/reent/getreent.c	7 Sep 2007 00:45:55 -0000	1.2
+++ newlib/libc/reent/getreent.c	8 Nov 2007 16:32:44 -0000
@@ -3,12 +3,20 @@
 #include <_ansi.h>
 #include <reent.h>
 
+#define weak_alias(name, aliasname) \
+  extern __typeof (name) aliasname __attribute__ ((weak, alias (#name)));
+
 #ifdef __getreent
 #undef __getreent
 #endif
+#ifdef __libc_getreent
+#undef __libc_getreent
+#endif
 
 struct _reent *
-_DEFUN_VOID(__getreent)
+__libc_getreent (void)
 {
   return _impure_ptr;
 }
+weak_alias(__libc_getreent,__getreent)
+

We can't provide a red zone in mini-os.

Index: newlib/libc/machine/x86_64/memcpy.S
===================================================================
RCS file: /cvs/src/src/newlib/libc/machine/x86_64/memcpy.S,v
retrieving revision 1.1
diff -u -p -r1.1 memcpy.S
--- newlib/libc/machine/x86_64/memcpy.S	28 Aug 2007 21:56:49 -0000	1.1
+++ newlib/libc/machine/x86_64/memcpy.S	8 Nov 2007 16:32:44 -0000
@@ -30,10 +30,18 @@ quadword_aligned:
   cmpq    $256, rdx
   jb      quadword_copy
 
+#if 1
+  subq    $32, rsp
+  movq    rax, 24 (rsp)
+  movq    r12, 16 (rsp)
+  movq    r13, 8  (rsp)
+  movq    r14, 0  (rsp)
+#else
   movq    rax, -8  (rsp)
   movq    r12, -16 (rsp)
   movq    r13, -24 (rsp)
   movq    r14, -32 (rsp)
+#endif
 
   movq    rdx, rcx                /* Copy 128 bytes at a time with minimum cache polution */
   shrq    $7, rcx
@@ -89,10 +97,18 @@ loop:
   movq    rdx, rcx
   andq    $127, rcx
   rep     movsb
+#if 1
+  movq    24 (rsp), rax
+  movq    16 (rsp), r12
+  movq    8  (rsp), r13
+  movq    0  (rsp), r14
+  addq    $32, rsp
+#else
   movq    -8  (rsp), rax
   movq    -16 (rsp), r12
   movq    -24 (rsp), r13
   movq    -32 (rsp), r14
+#endif
   ret