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, 540 insertions, 0 deletions

diff --git a/REORG.TODO/sysdeps/alpha/dl-trampoline.S b/REORG.TODO/sysdeps/alpha/dl-trampoline.S
new file mode 100644
index 0000000000..f527705d27
--- /dev/null
+++ b/REORG.TODO/sysdeps/alpha/dl-trampoline.S
@@ -0,0 +1,540 @@
+/* PLT trampolines.  Alpha version.
+   Copyright (C) 2005-2017 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   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>
+
+	.set noat
+
+.macro savei regno, offset
+	stq	$\regno, \offset($30)
+	cfi_rel_offset(\regno, \offset)
+.endm
+
+.macro savef regno, offset
+	stt	$f\regno, \offset($30)
+	cfi_rel_offset(\regno+32, \offset)
+.endm
+
+	.align	4
+	.globl	_dl_runtime_resolve_new
+	.ent	_dl_runtime_resolve_new
+
+#undef FRAMESIZE
+#define FRAMESIZE	14*8
+
+_dl_runtime_resolve_new:
+	.frame	$30, FRAMESIZE, $26, 0
+	.mask	0x4000000, 0
+
+	ldah	$29, 0($27)		!gpdisp!1
+	lda	$30, -FRAMESIZE($30)
+	stq	$26, 0*8($30)
+	stq	$16, 2*8($30)
+
+	stq	$17, 3*8($30)
+	lda	$29, 0($29)		!gpdisp!1
+	stq	$18, 4*8($30)
+	mov	$28, $16		/* link_map from .got.plt */
+
+	stq	$19, 5*8($30)
+	mov	$25, $17		/* offset of reloc entry */
+	stq	$20, 6*8($30)
+	mov	$26, $18		/* return address */
+
+	stq	$21, 7*8($30)
+	stt	$f16, 8*8($30)
+	stt	$f17, 9*8($30)
+	stt	$f18, 10*8($30)
+
+	stt	$f19, 11*8($30)
+	stt	$f20, 12*8($30)
+	stt	$f21, 13*8($30)
+	.prologue 2
+
+	bsr	$26, _dl_fixup		!samegp
+	mov	$0, $27
+
+	ldq	$26, 0*8($30)
+	ldq	$16, 2*8($30)
+	ldq	$17, 3*8($30)
+	ldq	$18, 4*8($30)
+	ldq	$19, 5*8($30)
+	ldq	$20, 6*8($30)
+	ldq	$21, 7*8($30)
+	ldt	$f16, 8*8($30)
+	ldt	$f17, 9*8($30)
+	ldt	$f18, 10*8($30)
+	ldt	$f19, 11*8($30)
+	ldt	$f20, 12*8($30)
+	ldt	$f21, 13*8($30)
+	lda	$30, FRAMESIZE($30)
+	jmp	$31, ($27), 0
+	.end	_dl_runtime_resolve_new
+
+	.globl	_dl_runtime_profile_new
+	.type	_dl_runtime_profile_new, @function
+
+#undef FRAMESIZE
+#define FRAMESIZE	20*8
+
+	/* We save the registers in a different order than desired by
+	   .mask/.fmask, so we have to use explicit cfi directives.  */
+	cfi_startproc
+
+_dl_runtime_profile_new:
+	ldah	$29, 0($27)		!gpdisp!2
+	lda	$30, -FRAMESIZE($30)
+	savei	26, 0*8
+	stq	$16, 2*8($30)
+
+	stq	$17, 3*8($30)
+	lda	$29, 0($29)		!gpdisp!2
+	stq	$18, 4*8($30)
+	lda	$1, FRAMESIZE($30)	/* incoming sp value */
+
+	stq	$1, 1*8($30)
+	stq	$19, 5*8($30)
+	stq	$20, 6*8($30)
+	mov	$28, $16		/* link_map from .got.plt */
+
+	stq	$21, 7*8($30)
+	mov	$25, $17		/* offset of reloc entry */
+	stt	$f16, 8*8($30)
+	mov	$26, $18		/* return address */
+
+	stt	$f17, 9*8($30)
+	mov	$30, $19		/* La_alpha_regs address */
+	stt	$f18, 10*8($30)
+	lda	$20, 14*8($30)		/* framesize address */
+
+	stt	$f19, 11*8($30)
+	stt	$f20, 12*8($30)
+	stt	$f21, 13*8($30)
+	stq	$28, 16*8($30)
+	stq	$25, 17*8($30)
+
+	bsr	$26, _dl_profile_fixup	!samegp
+	mov	$0, $27
+
+	/* Discover if we're wrapping this call.  */
+	ldq	$18, 14*8($30)
+	bge	$18, 1f
+
+	ldq	$26, 0*8($30)
+	ldq	$16, 2*8($30)
+	ldq	$17, 3*8($30)
+	ldq	$18, 4*8($30)
+	ldq	$19, 5*8($30)
+	ldq	$20, 6*8($30)
+	ldq	$21, 7*8($30)
+	ldt	$f16, 8*8($30)
+	ldt	$f17, 9*8($30)
+	ldt	$f18, 10*8($30)
+	ldt	$f19, 11*8($30)
+	ldt	$f20, 12*8($30)
+	ldt	$f21, 13*8($30)
+	lda	$30, FRAMESIZE($30)
+	jmp	$31, ($27), 0
+
+1:
+	/* Create a frame pointer and allocate a new argument frame.  */
+	savei	15, 15*8
+	mov	$30, $15
+	cfi_def_cfa_register (15)
+	addq	$18, 15, $18
+	bic	$18, 15, $18
+	subq	$30, $18, $30
+
+	/* Save the call destination around memcpy.  */
+	stq	$0, 14*8($30)
+
+	/* Copy the stack arguments into place.  */
+	lda	$16, 0($30)
+	lda	$17, FRAMESIZE($15)
+	jsr	$26, memcpy
+	ldgp	$29, 0($26)
+
+	/* Reload the argument registers.  */
+	ldq	$27, 14*8($30)
+	ldq	$16, 2*8($15)
+	ldq	$17, 3*8($15)
+	ldq	$18, 4*8($15)
+	ldq	$19, 5*8($15)
+	ldq	$20, 6*8($15)
+	ldq	$21, 7*8($15)
+	ldt	$f16, 8*8($15)
+	ldt	$f17, 9*8($15)
+	ldt	$f18, 10*8($15)
+	ldt	$f19, 11*8($15)
+	ldt	$f20, 12*8($15)
+	ldt	$f21, 13*8($15)
+
+	jsr	$26, ($27), 0
+	ldgp	$29, 0($26)
+
+	/* Set up for call to _dl_call_pltexit.  */
+	ldq	$16, 16*8($15)
+	ldq	$17, 17*8($15)
+	stq	$0, 16*8($15)
+	lda	$18, 0($15)
+	stq	$1, 17*8($15)
+	lda	$19, 16*8($15)
+	stt	$f0, 18*8($15)
+	stt	$f1, 19*8($15)
+	bsr	$26, _dl_call_pltexit	!samegp
+
+	mov	$15, $30
+	cfi_def_cfa_register (30)
+	ldq	$26, 0($30)
+	ldq	$15, 15*8($30)
+	lda	$30, FRAMESIZE($30)
+	ret
+
+	cfi_endproc
+	.size	_dl_runtime_profile_new, .-_dl_runtime_profile_new
+
+	.align	4
+	.globl	_dl_runtime_resolve_old
+	.ent	_dl_runtime_resolve_old
+
+#undef FRAMESIZE
+#define FRAMESIZE	44*8
+
+_dl_runtime_resolve_old:
+	lda	$30, -FRAMESIZE($30)
+	.frame	$30, FRAMESIZE, $26
+	/* Preserve all registers that C normally doesn't.  */
+	stq	$26, 0*8($30)
+	stq	$0, 1*8($30)
+	stq	$1, 2*8($30)
+	stq	$2, 3*8($30)
+	stq	$3, 4*8($30)
+	stq	$4, 5*8($30)
+	stq	$5, 6*8($30)
+	stq	$6, 7*8($30)
+	stq	$7, 8*8($30)
+	stq	$8, 9*8($30)
+	stq	$16, 10*8($30)
+	stq	$17, 11*8($30)
+	stq	$18, 12*8($30)
+	stq	$19, 13*8($30)
+	stq	$20, 14*8($30)
+	stq	$21, 15*8($30)
+	stq	$22, 16*8($30)
+	stq	$23, 17*8($30)
+	stq	$24, 18*8($30)
+	stq	$25, 19*8($30)
+	stq	$29, 20*8($30)
+	stt	$f0, 21*8($30)
+	stt	$f1, 22*8($30)
+	stt	$f10, 23*8($30)
+	stt	$f11, 24*8($30)
+	stt	$f12, 25*8($30)
+	stt	$f13, 26*8($30)
+	stt	$f14, 27*8($30)
+	stt	$f15, 28*8($30)
+	stt	$f16, 29*8($30)
+	stt	$f17, 30*8($30)
+	stt	$f18, 31*8($30)
+	stt	$f19, 32*8($30)
+	stt	$f20, 33*8($30)
+	stt	$f21, 34*8($30)
+	stt	$f22, 35*8($30)
+	stt	$f23, 36*8($30)
+	stt	$f24, 37*8($30)
+	stt	$f25, 38*8($30)
+	stt	$f26, 39*8($30)
+	stt	$f27, 40*8($30)
+	stt	$f28, 41*8($30)
+	stt	$f29, 42*8($30)
+	stt	$f30, 43*8($30)
+	.mask	0x27ff01ff, -FRAMESIZE
+	.fmask	0xfffffc03, -FRAMESIZE+21*8
+	/* Set up our GP.  */
+	br	$29, .+4
+	ldgp	$29, 0($29)
+	.prologue 0
+	/* Set up the arguments for _dl_fixup:
+	   $16 = link_map out of plt0
+	   $17 = offset of reloc entry = ($28 - $27 - 20) /12 * 24
+	   $18 = return address
+	*/
+	subq	$28, $27, $17
+	ldq	$16, 8($27)
+	subq	$17, 20, $17
+	mov	$26, $18
+	addq	$17, $17, $17
+	bsr	$26, _dl_fixup	!samegp
+
+	/* Move the destination address into position.  */
+	mov	$0, $27
+	/* Restore program registers.  */
+	ldq	$26, 0*8($30)
+	ldq	$0, 1*8($30)
+	ldq	$1, 2*8($30)
+	ldq	$2, 3*8($30)
+	ldq	$3, 4*8($30)
+	ldq	$4, 5*8($30)
+	ldq	$5, 6*8($30)
+	ldq	$6, 7*8($30)
+	ldq	$7, 8*8($30)
+	ldq	$8, 9*8($30)
+	ldq	$16, 10*8($30)
+	ldq	$17, 11*8($30)
+	ldq	$18, 12*8($30)
+	ldq	$19, 13*8($30)
+	ldq	$20, 14*8($30)
+	ldq	$21, 15*8($30)
+	ldq	$22, 16*8($30)
+	ldq	$23, 17*8($30)
+	ldq	$24, 18*8($30)
+	ldq	$25, 19*8($30)
+	ldq	$29, 20*8($30)
+	ldt	$f0, 21*8($30)
+	ldt	$f1, 22*8($30)
+	ldt	$f10, 23*8($30)
+	ldt	$f11, 24*8($30)
+	ldt	$f12, 25*8($30)
+	ldt	$f13, 26*8($30)
+	ldt	$f14, 27*8($30)
+	ldt	$f15, 28*8($30)
+	ldt	$f16, 29*8($30)
+	ldt	$f17, 30*8($30)
+	ldt	$f18, 31*8($30)
+	ldt	$f19, 32*8($30)
+	ldt	$f20, 33*8($30)
+	ldt	$f21, 34*8($30)
+	ldt	$f22, 35*8($30)
+	ldt	$f23, 36*8($30)
+	ldt	$f24, 37*8($30)
+	ldt	$f25, 38*8($30)
+	ldt	$f26, 39*8($30)
+	ldt	$f27, 40*8($30)
+	ldt	$f28, 41*8($30)
+	ldt	$f29, 42*8($30)
+	ldt	$f30, 43*8($30)
+	/* Flush the Icache after having modified the .plt code.  */
+	imb
+	/* Clean up and turn control to the destination */
+	lda	$30, FRAMESIZE($30)
+	jmp	$31, ($27)
+
+	.end	_dl_runtime_resolve_old
+
+	.globl	_dl_runtime_profile_old
+	.usepv	_dl_runtime_profile_old, no
+	.type	_dl_runtime_profile_old, @function
+
+	/* We save the registers in a different order than desired by
+	   .mask/.fmask, so we have to use explicit cfi directives.  */
+	cfi_startproc
+
+#undef FRAMESIZE
+#define FRAMESIZE	50*8
+
+	.align	4
+_dl_runtime_profile_old:
+	lda	$30, -FRAMESIZE($30)
+	cfi_adjust_cfa_offset (FRAMESIZE)
+
+	/* Preserve all argument registers.  This also constructs the
+	   La_alpha_regs structure.  */
+	savei	26, 0*8
+	savei	16, 2*8
+	savei	17, 3*8
+	savei	18, 4*8
+	savei	19, 5*8
+	savei	20, 6*8
+	savei	21, 7*8
+	lda	$16, FRAMESIZE($30)
+	savef	16, 8*8
+	savef	17, 9*8
+	savef	18, 10*8
+	savef	19, 11*8
+	savef	20, 12*8
+	savef	21, 13*8
+	stq	$16, 1*8($30)
+
+	/* Preserve all registers that C normally doesn't.  */
+	savei	0, 14*8
+	savei	1, 15*8
+	savei	2, 16*8
+	savei	3, 17*8
+	savei	4, 18*8
+	savei	5, 19*8
+	savei	6, 20*8
+	savei	7, 21*8
+	savei	8, 22*8
+	savei	22, 23*8
+	savei	23, 24*8
+	savei	24, 25*8
+	savei	25, 26*8
+	savei	29, 27*8
+	savef	0, 28*8
+	savef	1, 29*8
+	savef	10, 30*8
+	savef	11, 31*8
+	savef	12, 32*8
+	savef	13, 33*8
+	savef	14, 34*8
+	savef	15, 35*8
+	savef	22, 36*8
+	savef	23, 37*8
+	savef	24, 38*8
+	savef	25, 39*8
+	savef	26, 40*8
+	savef	27, 41*8
+	savef	28, 42*8
+	savef	29, 43*8
+	savef	30, 44*8
+
+	/* Set up our GP.  */
+	br	$29, .+4
+	ldgp	$29, 0($29)
+
+	/* Set up the arguments for _dl_profile_fixup:
+	   $16 = link_map out of plt0
+	   $17 = offset of reloc entry = ($28 - $27 - 20) /12 * 24
+	   $18 = return address
+	   $19 = La_alpha_regs address
+	   $20 = framesize address
+	*/
+	subq	$28, $27, $17
+	ldq	$16, 8($27)
+	subq	$17, 20, $17
+	mov	$26, $18
+	addq	$17, $17, $17
+	lda	$19, 0($30)
+	lda	$20, 45*8($30)
+	stq	$16, 48*8($30)
+	stq	$17, 49*8($30)
+
+	bsr	$26, _dl_profile_fixup	!samegp
+
+	/* Discover if we're wrapping this call.  */
+	ldq	$18, 45*8($30)
+	bge	$18, 1f
+
+	/* Move the destination address into position.  */
+	mov	$0, $27
+	/* Restore program registers.  */
+	ldq	$26, 0*8($30)
+	ldq	$16, 2*8($30)
+	ldq	$17, 3*8($30)
+	ldq	$18, 4*8($30)
+	ldq	$19, 5*8($30)
+	ldq	$20, 6*8($30)
+	ldq	$21, 7*8($30)
+	ldt	$f16, 8*8($30)
+	ldt	$f17, 9*8($30)
+	ldt	$f18, 10*8($30)
+	ldt	$f19, 11*8($30)
+	ldt	$f20, 12*8($30)
+	ldt	$f21, 13*8($30)
+	ldq	$0, 14*8($30)
+	ldq	$1, 15*8($30)
+	ldq	$2, 16*8($30)
+	ldq	$3, 17*8($30)
+	ldq	$4, 18*8($30)
+	ldq	$5, 19*8($30)
+	ldq	$6, 20*8($30)
+	ldq	$7, 21*8($30)
+	ldq	$8, 22*8($30)
+	ldq	$22, 23*8($30)
+	ldq	$23, 24*8($30)
+	ldq	$24, 25*8($30)
+	ldq	$25, 26*8($30)
+	ldq	$29, 27*8($30)
+	ldt	$f0, 28*8($30)
+	ldt	$f1, 29*8($30)
+	ldt	$f10, 30*8($30)
+	ldt	$f11, 31*8($30)
+	ldt	$f12, 32*8($30)
+	ldt	$f13, 33*8($30)
+	ldt	$f14, 34*8($30)
+	ldt	$f15, 35*8($30)
+	ldt	$f22, 36*8($30)
+	ldt	$f23, 37*8($30)
+	ldt	$f24, 38*8($30)
+	ldt	$f25, 39*8($30)
+	ldt	$f26, 40*8($30)
+	ldt	$f27, 41*8($30)
+	ldt	$f28, 42*8($30)
+	ldt	$f29, 43*8($30)
+	ldt	$f30, 44*8($30)
+
+	/* Clean up and turn control to the destination.  */
+	lda	$30, FRAMESIZE($30)
+	jmp	$31, ($27)
+
+1:
+	/* Create a frame pointer and allocate a new argument frame.  */
+	savei	15, 45*8
+	mov	$30, $15
+	cfi_def_cfa_register (15)
+	addq	$18, 15, $18
+	bic	$18, 15, $18
+	subq	$30, $18, $30
+
+	/* Save the call destination around memcpy.  */
+	stq	$0, 46*8($30)
+
+	/* Copy the stack arguments into place.  */
+	lda	$16, 0($30)
+	lda	$17, FRAMESIZE($15)
+	jsr	$26, memcpy
+	ldgp	$29, 0($26)
+
+	/* Reload the argument registers.  */
+	ldq	$27, 46*8($30)
+	ldq	$16, 2*8($15)
+	ldq	$17, 3*8($15)
+	ldq	$18, 4*8($15)
+	ldq	$19, 5*8($15)
+	ldq	$20, 6*8($15)
+	ldq	$21, 7*8($15)
+	ldt	$f16, 8*8($15)
+	ldt	$f17, 9*8($15)
+	ldt	$f18, 10*8($15)
+	ldt	$f19, 11*8($15)
+	ldt	$f20, 12*8($15)
+	ldt	$f21, 13*8($15)
+
+	jsr	$26, ($27), 0
+	ldgp	$29, 0($26)
+
+	/* Set up for call to _dl_call_pltexit.  */
+	ldq	$16, 48*8($15)
+	ldq	$17, 49*8($15)
+	stq	$0, 46*8($15)
+	lda	$18, 0($15)
+	stq	$1, 47*8($15)
+	lda	$19, 46*8($15)
+	stt	$f0, 48*8($15)
+	stt	$f1, 49*8($15)
+	bsr	$26, _dl_call_pltexit	!samegp
+
+	mov	$15, $30
+	cfi_def_cfa_register (30)
+	ldq	$26, 0($30)
+	ldq	$15, 45*8($30)
+	lda	$30, FRAMESIZE($30)
+	ret
+
+	cfi_endproc
+	.size	_dl_runtime_profile_old, .-_dl_runtime_profile_old