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Diffstat (limited to 'sysdeps/unix/sysv/linux/sh')
-rw-r--r--sysdeps/unix/sysv/linux/sh/sysdep.h24
1 files changed, 21 insertions, 3 deletions
diff --git a/sysdeps/unix/sysv/linux/sh/sysdep.h b/sysdeps/unix/sysv/linux/sh/sysdep.h
index d56ec454f9..1a412e53db 100644
--- a/sysdeps/unix/sysv/linux/sh/sysdep.h
+++ b/sysdeps/unix/sysv/linux/sh/sysdep.h
@@ -1,5 +1,5 @@
-/* Copyright (C) 1992,1993,1995,1996,1997,1998,1999,2000,2002,2003,2004
- Free Software Foundation, Inc.
+/* Copyright (C) 1992,1993,1995,1996,1997,1998,1999,2000,2002,2003,2004,
+ 2005 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Ulrich Drepper, <drepper@gnu.ai.mit.edu>, August 1995.
Changed by Kaz Kojima, <kkojima@rr.iij4u.or.jp>.
@@ -24,6 +24,7 @@
/* There is some commonality. */
#include <sysdeps/unix/sh/sysdep.h>
+#include <tls.h>
/* For Linux we can use the system call table in the header file
/usr/include/asm/unistd.h
@@ -104,7 +105,7 @@
mova 0f,r0; \
add r0,r12; \
mov.l 1f,r0; \
- mov.l r1,@(r0,r12)
+ mov.l r1,@(r0,r12); \
bra .Lpseudo_end; \
mov _IMM1,r0; \
.align 2; \
@@ -359,4 +360,21 @@
#endif /* __ASSEMBLER__ */
+/* Pointer mangling support. */
+#if defined NOT_IN_libc && defined IS_IN_rtld
+/* We cannot use the thread descriptor because in ld.so we use setjmp
+ earlier than the descriptor is initialized. Using a global variable
+ is too complicated here since we have no PC-relative addressing mode. */
+#else
+# ifdef __ASSEMBLER__
+# define PTR_MANGLE(reg) \
+ stc gbr,r1; mov.l @(POINTER_GUARD,r1),r1; xor r1,reg
+# define PTR_DEMANGLE(reg) PTR_MANGLE (reg)
+# else
+# define PTR_MANGLE(var) \
+ (var) = (void *) ((uintptr_t) (var) ^ THREAD_GET_POINTER_GUARD ())
+# define PTR_DEMANGLE(var) PTR_MANGLE (var)
+# endif
+#endif
+
#endif /* linux/sh/sysdep.h */