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authorUlrich Drepper <drepper@redhat.com>2005-12-20 15:28:51 +0000
committerUlrich Drepper <drepper@redhat.com>2005-12-20 15:28:51 +0000
commitd9038ff837089bcef3623b362cbe8ea5e96b2d87 (patch)
treeed44d5c34146eb88152bc4fb92731f2d09198f06 /sysdeps/unix/sysv/linux/sh/sysdep.h
parent35259015841308f7db2bc05a5664fcaab506e6ff (diff)
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* sysdeps/unix/sysv/linux/sh/sysdep.h: Include tls.h.
	(PTR_MANGLE, PTR_DEMANGLE): Define.
	(SYSCALL_ERROR_HANDLER): Fix typo.
	* sysdeps/sh/sh4/__longjmp.S: Use PTR_DEMANGLE if defined.
	* sysdeps/sh/sh3/__longjmp.S: Likewise.
	* sysdeps/sh/sh4/setjmp.S: Use PTR_MANGLE if defined.
	* sysdeps/sh/sh3/setjmp.S: Likewise.
Diffstat (limited to 'sysdeps/unix/sysv/linux/sh/sysdep.h')
-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 */