patches/glibc/2.7/240-alpha-ptr_mangle.patch
author "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
Mon Jul 28 20:10:34 2008 +0000 (2008-07-28)
changeset 744 4bf8448536d5
parent 734 patches/glibc/2.7/240-glibc-2.7-alpha-ptr_mangle.patch@9416a82ef7b4
permissions -rw-r--r--
Rename patches for glibc: include neither 'glibc' not he version in patch names, it's a duplicate of info already available from the directories they are in.
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--- glibc-2.7.orig/sysdeps/unix/alpha/sysdep.h
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+++ glibc-2.7/sysdeps/unix/alpha/sysdep.h
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@@ -397,42 +397,4 @@
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 	_sc_ret = _sc_0, _sc_err = _sc_19;			\
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 }
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-/* Pointer mangling support.  Note that tls access is slow enough that
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-   we don't deoptimize things by placing the pointer check value there.  */
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-
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-#include <stdint.h>
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-
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-#if defined NOT_IN_libc && defined IS_IN_rtld
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-# ifdef __ASSEMBLER__
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-#  define PTR_MANGLE(dst, src, tmp)				\
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-	ldah	tmp, __pointer_chk_guard_local($29) !gprelhigh;	\
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-	ldq	tmp, __pointer_chk_guard_local(tmp) !gprellow;	\
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-	xor	src, tmp, dst
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-#  define PTR_MANGLE2(dst, src, tmp)				\
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-	xor	src, tmp, dst
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-#  define PTR_DEMANGLE(dst, tmp)   PTR_MANGLE(dst, dst, tmp)
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-#  define PTR_DEMANGLE2(dst, tmp)  PTR_MANGLE2(dst, dst, tmp)
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-# else
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-extern uintptr_t __pointer_chk_guard_local attribute_relro attribute_hidden;
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-#  define PTR_MANGLE(var)	\
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-  (var) = (__typeof (var)) ((uintptr_t) (var) ^ __pointer_chk_guard_local)
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-#  define PTR_DEMANGLE(var)  PTR_MANGLE(var)
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-# endif
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-#elif defined PIC
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-# ifdef __ASSEMBLER__
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-#  define PTR_MANGLE(dst, src, tmp)		\
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-	ldq	tmp, __pointer_chk_guard;	\
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-	xor	src, tmp, dst
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-#  define PTR_MANGLE2(dst, src, tmp)		\
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-	xor	src, tmp, dst
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-#  define PTR_DEMANGLE(dst, tmp)   PTR_MANGLE(dst, dst, tmp)
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-#  define PTR_DEMANGLE2(dst, tmp)  PTR_MANGLE2(dst, dst, tmp)
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-# else
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-extern uintptr_t __pointer_chk_guard attribute_relro;
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-#  define PTR_MANGLE(var)	\
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-	(var) = (void *) ((uintptr_t) (var) ^ __pointer_chk_guard)
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-#  define PTR_DEMANGLE(var)  PTR_MANGLE(var)
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-# endif
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-#endif
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-
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 #endif /* ASSEMBLER */
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--- glibc-2.7.orig/sysdeps/unix/sysv/linux/alpha/sysdep.h
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+++ glibc-2.7/sysdeps/unix/sysv/linux/alpha/sysdep.h
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@@ -98,4 +98,46 @@
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 	INTERNAL_SYSCALL1(name, err_out, nr, args);			\
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 })
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+/* Pointer mangling support.  Note that tls access is slow enough that
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+   we don't deoptimize things by placing the pointer check value there.  */
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+
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+#if defined NOT_IN_libc && defined IS_IN_rtld
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+# ifdef __ASSEMBLER__
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+#  define PTR_MANGLE(dst, src, tmp)				\
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+	ldah	tmp, __pointer_chk_guard_local($29) !gprelhigh;	\
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+	ldq	tmp, __pointer_chk_guard_local(tmp) !gprellow;	\
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+	xor	src, tmp, dst
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+#  define PTR_MANGLE2(dst, src, tmp)				\
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+	xor	src, tmp, dst
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+#  define PTR_DEMANGLE(dst, tmp)   PTR_MANGLE(dst, dst, tmp)
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+#  define PTR_DEMANGLE2(dst, tmp)  PTR_MANGLE2(dst, dst, tmp)
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+# else
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+extern uintptr_t __pointer_chk_guard_local attribute_relro attribute_hidden;
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+#  define PTR_MANGLE(var)	\
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+  (var) = (__typeof (var)) ((uintptr_t) (var) ^ __pointer_chk_guard_local)
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+#  define PTR_DEMANGLE(var)  PTR_MANGLE(var)
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+# endif
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+#elif defined PIC
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+# ifdef __ASSEMBLER__
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+#  define PTR_MANGLE(dst, src, tmp)		\
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+	ldq	tmp, __pointer_chk_guard;	\
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+	xor	src, tmp, dst
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+#  define PTR_MANGLE2(dst, src, tmp)		\
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+	xor	src, tmp, dst
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+#  define PTR_DEMANGLE(dst, tmp)   PTR_MANGLE(dst, dst, tmp)
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+#  define PTR_DEMANGLE2(dst, tmp)  PTR_MANGLE2(dst, dst, tmp)
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+# else
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+extern uintptr_t __pointer_chk_guard attribute_relro;
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+#  define PTR_MANGLE(var)	\
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+	(var) = (void *) ((uintptr_t) (var) ^ __pointer_chk_guard)
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+#  define PTR_DEMANGLE(var)  PTR_MANGLE(var)
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+# endif
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+#else
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+/* Pointer mangling is not yet supported for static libc on alpha.  */
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+# ifndef __ASSEMBLER__
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+#  define PTR_MANGLE(var)   (void) (var)
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+#  define PTR_DEMANGLE(var) (void) (var)
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+# endif
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+#endif
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+
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 #endif /* _LINUX_ALPHA_SYSDEP_H */