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-rw-r--r--sysdeps/sparc/sparc64/dl-trampoline.S327
1 files changed, 327 insertions, 0 deletions
diff --git a/sysdeps/sparc/sparc64/dl-trampoline.S b/sysdeps/sparc/sparc64/dl-trampoline.S
new file mode 100644
index 0000000000..81e5c556c3
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+++ b/sysdeps/sparc/sparc64/dl-trampoline.S
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+/* PLT trampolines.  Sparc 64-bit version.
+   Copyright (C) 2005 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, write to the Free
+   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 USA.  */
+
+#include <sysdep.h>
+
+	.text
+	.align	32
+
+	/* %g1:	PLT offset loaded by PLT entry
+	 * %g4: callers PC, which is PLT0 + 24, therefore we
+	 *      add (32 + 8) to get the address of PLT2 which
+	 *      is where the magic cookie is stored
+	 */
+	.globl	_dl_runtime_resolve_0
+	.type	_dl_runtime_resolve_0, @function
+_dl_runtime_resolve_0:
+	cfi_startproc
+
+	save	%sp, -192, %sp
+	cfi_def_cfa_register(%fp)
+	cfi_window_save
+	cfi_register(%o7, %i7)
+
+	sethi   %hi(1047552), %l2
+	ldx	[%g4 + 32 + 8], %o0
+	sub     %g1, %g4, %l0
+	xor     %l2, -1016, %l2
+	sethi   %hi(5120), %l3	/* 160 * 32 */
+	add     %l0, %l2, %l0
+	sethi   %hi(32768), %l4
+	udivx   %l0, %l3, %l3
+	sllx    %l3, 2, %l1
+	add     %l1, %l3, %l1
+	sllx    %l1, 10, %l2
+	sub	%l4, 4, %l4
+	sllx    %l1, 5, %l1
+	sub     %l0, %l2, %l0
+	udivx   %l0, 24, %l0
+	add     %l0, %l4, %l0
+	add     %l1, %l0, %l1
+	add     %l1, %l1, %l0
+	add     %l0, %l1, %l0
+	call	_dl_fixup
+	 sllx    %l0, 3, %o1
+	jmp	%o0
+	 restore
+
+	cfi_endproc
+
+	.size	_dl_runtime_resolve_0, .-_dl_runtime_resolve_0
+
+	/* %g1:	PLT offset loaded by PLT entry
+	 * %g4: callers PC, which is PLT1 + 24, therefore we
+	 *      add 8 to get the address of PLT2 which
+	 *      is where the magic cookie is stored
+	 */
+	.globl	_dl_runtime_resolve_1
+	.type	_dl_runtime_resolve_1, @function
+_dl_runtime_resolve_1:
+	cfi_startproc
+
+	save	%sp, -192, %sp
+	cfi_def_cfa_register(%fp)
+	cfi_window_save
+	cfi_register(%o7, %i7)
+
+	srlx	%g1, 12, %o1
+	ldx	[%g4 + 8], %o0
+	add	%o1, %o1, %o3
+	sub	%o1, 96, %o1
+	call	_dl_fixup
+	 add	%o1, %o3, %o1
+	jmp	%o0
+	 restore
+
+	cfi_endproc
+
+	.size	_dl_runtime_resolve_1, .-_dl_runtime_resolve_1
+
+	/* For the profiling cases we pass in our stack frame
+	 * as the base of the La_sparc64_regs, so it looks
+	 * like:
+	 *	%l0			%sp
+	 *	...
+	 *	%l7			%sp + (7 * 8)
+	 *	%i0			%sp + (8 * 8)
+	 *	...
+	 *	%i7			%sp + (15 * 8)
+	 *	%f0			%sp + (16 * 8)
+	 *	%f16			%sp + (31 * 8)
+	 *	framesize		%sp + (32 * 8)
+	 */
+
+	.globl	_dl_profile_save_regs
+	.type	_dl_profile_save_regs, @function
+_dl_profile_save_regs:
+	cfi_startproc
+
+	stx	%l0, [%sp + STACK_BIAS + ( 0 * 8)]
+	stx	%l1, [%sp + STACK_BIAS + ( 1 * 8)]
+	stx	%l2, [%sp + STACK_BIAS + ( 2 * 8)]
+	stx	%l3, [%sp + STACK_BIAS + ( 3 * 8)]
+	stx	%l4, [%sp + STACK_BIAS + ( 4 * 8)]
+	stx	%l5, [%sp + STACK_BIAS + ( 5 * 8)]
+	stx	%l6, [%sp + STACK_BIAS + ( 6 * 8)]
+	stx	%l7, [%sp + STACK_BIAS + ( 7 * 8)]
+	stx	%i0, [%sp + STACK_BIAS + ( 8 * 8)]
+	stx	%i1, [%sp + STACK_BIAS + ( 9 * 8)]
+	stx	%i2, [%sp + STACK_BIAS + (10 * 8)]
+	stx	%i3, [%sp + STACK_BIAS + (11 * 8)]
+	stx	%i4, [%sp + STACK_BIAS + (12 * 8)]
+	stx	%i5, [%sp + STACK_BIAS + (13 * 8)]
+	stx	%i6, [%sp + STACK_BIAS + (14 * 8)]
+	stx	%i7, [%sp + STACK_BIAS + (15 * 8)]
+	std	%f0, [%sp + STACK_BIAS + (16 * 8)]
+	std	%f2, [%sp + STACK_BIAS + (17 * 8)]
+	std	%f4, [%sp + STACK_BIAS + (18 * 8)]
+	std	%f6, [%sp + STACK_BIAS + (19 * 8)]
+	std	%f8, [%sp + STACK_BIAS + (20 * 8)]
+	std	%f10, [%sp + STACK_BIAS + (21 * 8)]
+	std	%f12, [%sp + STACK_BIAS + (22 * 8)]
+	std	%f14, [%sp + STACK_BIAS + (23 * 8)]
+	std	%f16, [%sp + STACK_BIAS + (24 * 8)]
+	std	%f18, [%sp + STACK_BIAS + (25 * 8)]
+	std	%f20, [%sp + STACK_BIAS + (26 * 8)]
+	std	%f22, [%sp + STACK_BIAS + (27 * 8)]
+	std	%f24, [%sp + STACK_BIAS + (28 * 8)]
+	std	%f26, [%sp + STACK_BIAS + (29 * 8)]
+	std	%f28, [%sp + STACK_BIAS + (30 * 8)]
+	retl
+	 std	%f30, [%sp + STACK_BIAS + (31 * 8)]
+
+	cfi_endproc
+
+	.size	_dl_profile_save_regs, .-_dl_profile_save_regs
+
+	/* If we are going to call pltexit, then we must replicate
+	 * the caller's stack frame.
+	 * %o0: PLT resolved function address
+	 */
+	.globl	_dl_profile_invoke
+	.type	_dl_profile_invoke, @function
+_dl_profile_invoke:
+	cfi_startproc
+
+	sub	%sp, %l0, %sp
+1:
+	srlx	%l0, 3, %l7
+	mov	%o0, %l1
+	mov	%i0, %o0
+	mov	%i1, %o1
+	mov	%i2, %o2
+	mov	%i3, %o3
+	mov	%i4, %o4
+	mov	%i5, %o5
+	add	%fp, STACK_BIAS, %l2
+	add	%sp, STACK_BIAS, %l3
+1:	ldx	[%l2], %l4
+	add	%l2, 0x8, %l2
+	subcc	%l7, 1, %l7
+	stx	%l4, [%l3]
+	bne,pt	%xcc, 1b
+	 add	%l3, 0x8, %l3
+
+	jmpl	%l1, %o7
+	 nop
+
+	stx	%o0, [%sp + STACK_BIAS + (16 * 8)]
+	stx	%o1, [%sp + STACK_BIAS + (17 * 8)]
+	stx	%o2, [%sp + STACK_BIAS + (18 * 8)]
+	stx	%o3, [%sp + STACK_BIAS + (19 * 8)]
+	std	%f0, [%sp + STACK_BIAS + (20 * 8)]
+	std	%f2, [%sp + STACK_BIAS + (21 * 8)]
+	std	%f4, [%sp + STACK_BIAS + (22 * 8)]
+	std	%f8, [%sp + STACK_BIAS + (23 * 8)]
+
+	mov	%l5, %o0
+	mov	%l6, %o1
+	add	%sp, %l0, %o2
+	add	%sp, STACK_BIAS + (16 * 8), %o3
+	call	_dl_call_pltexit
+	 add	%o2, STACK_BIAS, %o2
+
+	ldx	[%sp + STACK_BIAS + (16 * 8)], %i0
+	ldx	[%sp + STACK_BIAS + (17 * 8)], %i1
+	ldx	[%sp + STACK_BIAS + (18 * 8)], %i2
+	ldx	[%sp + STACK_BIAS + (19 * 8)], %i3
+
+	jmpl	%i7 + 8, %g0
+	 restore
+
+	cfi_endproc
+
+	.size	_dl_profile_invoke, .-_dl_profile_invoke
+
+	/* %g1:	PLT offset loaded by PLT entry
+	 * %g4: callers PC, which is PLT0 + 24, therefore we
+	 *      add (32 + 8) to get the address of PLT2 which
+	 *      is where the magic cookie is stored
+	 */
+	.align	32
+	.globl	_dl_runtime_profile_0
+	.type	_dl_runtime_profile_0, @function
+_dl_runtime_profile_0:
+	cfi_startproc
+
+	brz,a,pn %fp, 1f
+	 mov	192, %g5
+	sub	%fp, %sp, %g5
+1:	save	%sp, -336, %sp
+	cfi_def_cfa_register(%fp)
+	cfi_window_save
+	cfi_register(%o7, %i7)
+
+	sethi   %hi(1047552), %l2
+	ldx	[%g4 + 32 + 8], %o0
+	sub     %g1, %g4, %l0
+	xor     %l2, -1016, %l2
+	sethi   %hi(5120), %l3	/* 160 * 32 */
+	add     %l0, %l2, %l0
+	sethi   %hi(32768), %l4
+	udivx   %l0, %l3, %l3
+	sllx    %l3, 2, %l1
+	add     %l1, %l3, %l1
+	sllx    %l1, 10, %l2
+	sub	%l4, 4, %l4
+	sllx    %l1, 5, %l1
+	sub     %l0, %l2, %l0
+	udivx   %l0, 24, %l0
+	add     %l0, %l4, %l0
+	add     %l1, %l0, %l1
+	add     %l1, %l1, %l0
+	add     %l0, %l1, %l0
+
+	mov	%i7, %o2
+	sllx    %l0, 3, %o1
+
+	mov	%g5, %l0
+	mov	%o0, %l5
+	mov	%o1, %l6
+
+	call	_dl_profile_save_regs
+	 nop
+
+	add	%sp, STACK_BIAS, %o3
+	call	_dl_profile_fixup
+	 add	%sp, (STACK_BIAS + (32 * 8)), %o4
+
+	ldx	[%sp + STACK_BIAS + (32 * 8)], %o1
+	brgez,pt %o1, 1f
+	 nop
+
+	call	_dl_profile_invoke
+	 nop
+
+1:	jmp	%o0
+	 restore
+
+	cfi_endproc
+
+	.size	_dl_runtime_profile_0, .-_dl_runtime_profile_0
+
+	/* %g1:	PLT offset loaded by PLT entry
+	 * %g4: callers PC, which is PLT1 + 24, therefore we
+	 *      add 8 to get the address of PLT2 which
+	 *      is where the magic cookie is stored
+	 */
+	.globl	_dl_runtime_profile_1
+	.type	_dl_runtime_profile_1, @function
+_dl_runtime_profile_1:
+	cfi_startproc
+
+	brz,a,pn %fp, 1f
+	 mov	192, %g5
+	sub	%fp, %sp, %g5
+1:	save	%sp, -336, %sp
+	cfi_def_cfa_register(%fp)
+	cfi_window_save
+	cfi_register(%o7, %i7)
+
+	srlx	%g1, 12, %o1
+	ldx	[%g4 + 8], %o0
+	add	%o1, %o1, %o3
+	sub	%o1, 96, %o1
+	mov	%i7, %o2
+	add	%o1, %o3, %o1
+
+	mov	%g5, %l0
+	mov	%o0, %l5
+	mov	%o1, %l6
+
+	call	_dl_profile_save_regs
+	 nop
+
+	add	%sp, STACK_BIAS, %o3
+	call	_dl_profile_fixup
+	 add	%sp, (STACK_BIAS + (32 * 8)), %o4
+
+	ldx	[%sp + STACK_BIAS + (32 * 8)], %o1
+	brgez,pt %o1, 1f
+	 nop
+
+	call	_dl_profile_invoke
+	 nop
+
+1:	jmp	%o0
+	 restore
+
+	cfi_endproc
+
+	.size	_dl_runtime_resolve_1, .-_dl_runtime_resolve_1
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