Prepare for radical source tree reorganization. zack/build-layout-experiment

All top-level files and directories are moved into a temporary storage
directory, REORG.TODO, except for files that will certainly still
exist in their current form at top level when we're done (COPYING,
COPYING.LIB, LICENSES, NEWS, README), all old ChangeLog files (which
are moved to the new directory OldChangeLogs, instead), and the
generated file INSTALL (which is just deleted; in the new order, there
will be no generated files checked into version control).

1 files changed, 176 insertions, 0 deletions

diff --git a/REORG.TODO/sysdeps/sparc/sparc-ifunc.h b/REORG.TODO/sysdeps/sparc/sparc-ifunc.h
new file mode 100644
index 0000000000..8cc86ff5e1
--- /dev/null
+++ b/REORG.TODO/sysdeps/sparc/sparc-ifunc.h
@@ -0,0 +1,176 @@
+/* This file is part of the GNU C Library.
+   Copyright (C) 2012-2017 Free Software Foundation, Inc.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, see
+   <http://www.gnu.org/licenses/>.  */
+
+#include <sysdep.h>
+
+#ifdef __ASSEMBLER__
+
+# ifdef SHARED
+
+#  define SPARC_ASM_IFUNC_DFLT(name, dflt)		\
+ENTRY (__##name)					\
+	.type	__##name, @gnu_indirect_function;	\
+	SETUP_PIC_REG_LEAF(o3, o5);			\
+	sethi	%gdop_hix22(dflt), %o1;			\
+	xor	%o1, %gdop_lox10(dflt), %o1;		\
+	add	%o3, %o1, %o1;				\
+	retl;						\
+	 mov	%o1, %o0;				\
+END (__##name)
+
+#  define SPARC_ASM_IFUNC1(name, m1, f1, dflt)		\
+ENTRY (__##name)					\
+	.type	__##name, @gnu_indirect_function;	\
+	SETUP_PIC_REG_LEAF(o3, o5);			\
+	set	m1, %o1;				\
+	andcc	%o0, %o1, %g0;				\
+	be	9f;					\
+	 nop;						\
+	sethi	%gdop_hix22(f1), %o1;			\
+	xor	%o1, %gdop_lox10(f1), %o1;		\
+	ba	10f;					\
+	 nop;						\
+9:	sethi	%gdop_hix22(dflt), %o1;			\
+	xor	%o1, %gdop_lox10(dflt), %o1;		\
+10:	add	%o3, %o1, %o1;				\
+	retl;						\
+	 mov	%o1, %o0;				\
+END (__##name)
+
+#  define SPARC_ASM_IFUNC2(name, m1, f1, m2, f2, dflt)	\
+ENTRY (__##name)					\
+	.type	__##name, @gnu_indirect_function;	\
+	SETUP_PIC_REG_LEAF(o3, o5);			\
+	set	m1, %o1;				\
+	andcc	%o0, %o1, %g0;				\
+	be	8f;					\
+	 nop;						\
+	sethi	%gdop_hix22(f1), %o1;			\
+	xor	%o1, %gdop_lox10(f1), %o1;		\
+	ba	10f;					\
+	 nop;						\
+8:	set	m2, %o1;				\
+	andcc	%o0, %o1, %g0;				\
+	be	9f;					\
+	 nop;						\
+	sethi	%gdop_hix22(f2), %o1;			\
+	xor	%o1, %gdop_lox10(f2), %o1;		\
+	ba	10f;					\
+	 nop;						\
+9:	sethi	%gdop_hix22(dflt), %o1;			\
+	xor	%o1, %gdop_lox10(dflt), %o1;		\
+10:	add	%o3, %o1, %o1;				\
+	retl;						\
+	 mov	%o1, %o0;				\
+END (__##name)
+
+# else /* SHARED */
+
+# ifdef __arch64__
+#  define SET(SYM, TMP, REG)	setx SYM, TMP, REG
+# else
+#  define SET(SYM, TMP, REG)	set SYM, REG
+# endif
+
+#  define SPARC_ASM_IFUNC_DFLT(name, dflt)		\
+ENTRY (__##name)					\
+	.type	__##name, @gnu_indirect_function;	\
+	SET(dflt, %g1, %o1);				\
+	retl;						\
+	 mov	%o1, %o0;				\
+END (__##name)
+
+#  define SPARC_ASM_IFUNC1(name, m1, f1, dflt)		\
+ENTRY (__##name)					\
+	.type	__##name, @gnu_indirect_function;	\
+	set	m1, %o1;				\
+	andcc	%o0, %o1, %g0;				\
+	be	9f;					\
+	 nop;						\
+	SET(f1, %g1, %o1);				\
+	ba	10f;					\
+	 nop;						\
+9:	SET(dflt, %g1, %o1);				\
+10:	retl;						\
+	 mov	%o1, %o0;				\
+END (__##name)
+
+#  define SPARC_ASM_IFUNC2(name, m1, f1, m2, f2, dflt)	\
+ENTRY (__##name)					\
+	.type	__##name, @gnu_indirect_function;	\
+	set	m1, %o1;				\
+	andcc	%o0, %o1, %g0;				\
+	be	8f;					\
+	 nop;						\
+	SET(f1, %g1, %o1);				\
+	ba	10f;					\
+	 nop;						\
+8:	set	m2, %o1;				\
+	andcc	%o0, %o1, %g0;				\
+	be	9f;					\
+	 nop;						\
+	SET(f2, %g1, %o1);				\
+	ba	10f;					\
+	 nop;						\
+9:	SET(dflt, %g1, %o1);				\
+10:	retl;						\
+	 mov	%o1, %o0;				\
+END (__##name)
+
+# endif /* SHARED */
+
+#define SPARC_ASM_VIS2_IFUNC(name)			\
+	SPARC_ASM_IFUNC1(name, HWCAP_SPARC_VIS2,	\
+			 __##name##_vis2, __##name##_generic)
+
+# ifdef HAVE_AS_VIS3_SUPPORT
+
+#define SPARC_ASM_VIS3_IFUNC(name)			\
+	SPARC_ASM_IFUNC1(name, HWCAP_SPARC_VIS3,	\
+			 __##name##_vis3, __##name##_generic)
+
+#define SPARC_ASM_VIS3_VIS2_IFUNC(name)			\
+	SPARC_ASM_IFUNC2(name, HWCAP_SPARC_VIS3,	\
+			 __##name##_vis3,		\
+			 HWCAP_SPARC_VIS2,		\
+			 __##name##_vis2, __##name##_generic)
+
+# else /* HAVE_AS_VIS3_SUPPORT */
+
+#define SPARC_ASM_VIS3_IFUNC(name)			\
+	SPARC_ASM_IFUNC_DFLT(name, __##name##_generic)
+
+#define SPARC_ASM_VIS3_VIS2_IFUNC(name)			\
+	SPARC_ASM_VIS2_IFUNC(name)
+
+# endif /* HAVE_AS_VIS3_SUPPORT */
+
+
+#else	/* __ASSEMBLER__ */
+
+# define sparc_libm_ifunc(name, expr)					\
+  extern void *name##_ifunc (int) __asm__ (#name);			\
+  void *name##_ifunc (int hwcap)					\
+  {									\
+    __typeof (name) *res = expr;					\
+    return res;								\
+  }									\
+  __asm__ (".type " #name ", %gnu_indirect_function");
+
+# define sparc_libc_ifunc(name, expr) sparc_libm_ifunc (name, expr)
+
+#endif	/* __ASSEMBLER__ */