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, 154 insertions, 0 deletions

diff --git a/REORG.TODO/sysdeps/unix/sysv/linux/tile/sysdep-cancel.h b/REORG.TODO/sysdeps/unix/sysv/linux/tile/sysdep-cancel.h
new file mode 100644
index 0000000000..092a90c312
--- /dev/null
+++ b/REORG.TODO/sysdeps/unix/sysv/linux/tile/sysdep-cancel.h
@@ -0,0 +1,154 @@
+/* Copyright (C) 2011-2017 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011.
+
+   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>
+#include <tls.h>
+#ifndef __ASSEMBLER__
+# include <nptl/pthreadP.h>
+#endif
+
+#if IS_IN (libc) || IS_IN (libpthread) || IS_IN (librt)
+
+/* Allow hacking in some extra code if desired. */
+#ifndef PSEUDO_EXTRA
+#define PSEUDO_EXTRA
+#endif
+
+#undef PSEUDO
+#define PSEUDO(name, syscall_name, args)				      \
+  ENTRY(__##syscall_name##_nocancel);					      \
+    PSEUDO_EXTRA							      \
+    moveli TREG_SYSCALL_NR_NAME, SYS_ify(syscall_name);			      \
+    swint1;								      \
+    BNEZ r1, 0f;							      \
+    jrp lr;								      \
+  END(__##syscall_name##_nocancel);					      \
+  ENTRY (name)								      \
+    SINGLE_THREAD_P(r11);						      \
+    BEQZ r11, L(pseudo_cancel);						      \
+    PSEUDO_EXTRA							      \
+    moveli TREG_SYSCALL_NR_NAME, SYS_ify(syscall_name);			      \
+    swint1;								      \
+    BNEZ r1, 0f;							      \
+    jrp lr;								      \
+  L(pseudo_cancel):							      \
+    {									      \
+     move r11, sp;							      \
+     ST sp, lr;								      \
+     ADDI_PTR sp, sp, -STKSPACE;					      \
+    };									      \
+    cfi_offset (lr, 0);							      \
+    cfi_def_cfa_offset (STKSPACE);					      \
+    {									      \
+     ADDI_PTR r12, sp, REGSIZE;						      \
+     ADDI_PTR r13, sp, 2 * REGSIZE;	/* set up for PUSHARGS_0 */	      \
+    };									      \
+    ST r12, r11;							      \
+    PUSHARGS_##args			/* save syscall args */	      	      \
+    CENABLE;								      \
+    ADDI_PTR r12, sp, 10 * REGSIZE;					      \
+    {									      \
+     ST r12, r0;			/* save mask */			      \
+     ADDI_PTR r13, sp, 2 * REGSIZE;	/* set up for POPARGS_0 */	      \
+    };									      \
+    POPARGS_##args			/* restore syscall args */	      \
+    PSEUDO_EXTRA							      \
+    moveli TREG_SYSCALL_NR_NAME, SYS_ify(syscall_name);			      \
+    swint1;								      \
+    ADDI_PTR r12, sp, 12 * REGSIZE;					      \
+    {									      \
+     ST r12, r1;			/* save syscall result */             \
+     ADDI_PTR r12, sp, 11 * REGSIZE;					      \
+    };									      \
+    {									      \
+     ST r12, r0;			                                      \
+     ADDI_PTR r13, sp, 10 * REGSIZE;					      \
+    };									      \
+    LD r0, r13;				/* pass mask as arg1 */		      \
+    CDISABLE;								      \
+    {									      \
+     ADDI_PTR lr, sp, STKSPACE;						      \
+     ADDI_PTR r0, sp, 11 * REGSIZE;					      \
+    };									      \
+    {									      \
+     LD r0, r0;								      \
+     ADDI_PTR r1, sp, 12 * REGSIZE;					      \
+    };									      \
+    LD r1, r1;								      \
+    {									      \
+     LD lr, lr;								      \
+     ADDI_PTR sp, sp, STKSPACE;						      \
+    };									      \
+    cfi_def_cfa_offset (0);						      \
+    BNEZ r1, 0f
+
+# define PUSHARGS_0 /* nothing to do */
+# define PUSHARGS_1 PUSHARGS_0 { ADDI_PTR r14, sp, 3 * REGSIZE; ST r13, r0 };
+# define PUSHARGS_2 PUSHARGS_1 { ADDI_PTR r13, sp, 4 * REGSIZE; ST r14, r1 };
+# define PUSHARGS_3 PUSHARGS_2 { ADDI_PTR r14, sp, 5 * REGSIZE; ST r13, r2 };
+# define PUSHARGS_4 PUSHARGS_3 { ADDI_PTR r13, sp, 6 * REGSIZE; ST r14, r3 };
+# define PUSHARGS_5 PUSHARGS_4 { ADDI_PTR r14, sp, 7 * REGSIZE; ST r13, r4 };
+# define PUSHARGS_6 PUSHARGS_5 { ADDI_PTR r13, sp, 8 * REGSIZE; ST r14, r5 };
+# define PUSHARGS_7 PUSHARGS_6 { ADDI_PTR r14, sp, 9 * REGSIZE; ST r13, r6 };
+
+# define POPARGS_0  /* nothing to do */
+# define POPARGS_1  POPARGS_0 { ADDI_PTR r14, sp, 3 * REGSIZE; LD r0, r13 };
+# define POPARGS_2  POPARGS_1 { ADDI_PTR r13, sp, 4 * REGSIZE; LD r1, r14 };
+# define POPARGS_3  POPARGS_2 { ADDI_PTR r14, sp, 5 * REGSIZE; LD r2, r13 };
+# define POPARGS_4  POPARGS_3 { ADDI_PTR r13, sp, 6 * REGSIZE; LD r3, r14 };
+# define POPARGS_5  POPARGS_4 { ADDI_PTR r14, sp, 7 * REGSIZE; LD r4, r13 };
+# define POPARGS_6  POPARGS_5 { ADDI_PTR r13, sp, 8 * REGSIZE; LD r5, r14 };
+# define POPARGS_7  POPARGS_6 { ADDI_PTR r14, sp, 9 * REGSIZE; LD r6, r13 };
+
+# define STKSPACE	(13 * REGSIZE)
+
+# if IS_IN (libpthread)
+#  define CENABLE	jal __pthread_enable_asynccancel
+#  define CDISABLE	jal __pthread_disable_asynccancel
+# elif IS_IN (librt)
+#  define CENABLE	jal __librt_enable_asynccancel
+#  define CDISABLE	jal __librt_disable_asynccancel
+# else
+#  define CENABLE	jal __libc_enable_asynccancel
+#  define CDISABLE	jal __libc_disable_asynccancel
+# endif
+
+# ifndef __ASSEMBLER__
+#  define SINGLE_THREAD_P						\
+	__builtin_expect (THREAD_GETMEM (THREAD_SELF,			\
+					 header.multiple_threads)	\
+			  == 0, 1)
+# else
+#  define SINGLE_THREAD_P(reg)						\
+  ADDLI_PTR reg, tp, MULTIPLE_THREADS_OFFSET;                           \
+  LD reg, reg;                                                          \
+  CMPEQI reg, reg, 0
+#endif
+
+#elif !defined __ASSEMBLER__
+
+# define SINGLE_THREAD_P 1
+# define NO_CANCELLATION 1
+
+#endif
+
+#ifndef __ASSEMBLER__
+# define RTLD_SINGLE_THREAD_P                                           \
+  __builtin_expect (THREAD_GETMEM (THREAD_SELF,                         \
+                                   header.multiple_threads) == 0, 1)
+#endif