* sysdeps/alpha/dl-trampoline.S: New file. * sysdeps/alpha/dl-machine.h: Move PLT trampolines there. Use RESOLVE_MAP instead of RESOLVE to protect relocation code. (elf_machine_runtime_setup): Test for dl_profile non-null. (ARCH_LA_PLTENTER, ARCH_LA_PLTEXIT): New. * sysdeps/alpha/bits/link.h: New file. * sysdeps/generic/ldsodefs.h (La_alpha_regs, La_alpha_retval): New. (struct audit_ifaces): Add alpha entries. * elf/tst-auditmod1.c: Add alpha entries.

2005-01-22  Richard Henderson  <rth@redhat.com>

	* sysdeps/alpha/dl-trampoline.S: New file.
	* sysdeps/alpha/dl-machine.h: Move PLT trampolines there.
	Use RESOLVE_MAP instead of RESOLVE to protect relocation code.
	(elf_machine_runtime_setup): Test for dl_profile non-null.
	(ARCH_LA_PLTENTER, ARCH_LA_PLTEXIT): New.
	* sysdeps/alpha/bits/link.h: New file.
	* sysdeps/generic/ldsodefs.h (La_alpha_regs, La_alpha_retval): New.
	(struct audit_ifaces): Add alpha entries.
	* elf/tst-auditmod1.c: Add alpha entries.

1 files changed, 361 insertions, 0 deletions

diff --git a/sysdeps/alpha/dl-trampoline.S b/sysdeps/alpha/dl-trampoline.S
new file mode 100644
index 0000000..4235083
--- /dev/null
+++ b/sysdeps/alpha/dl-trampoline.S
@@ -0,0 +1,361 @@
+/* PLT trampolines.  Alpha 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>
+
+	.set noat
+
+	.globl	_dl_runtime_resolve
+	.ent	_dl_runtime_resolve
+
+#undef FRAMESIZE
+#define FRAMESIZE	44*8
+
+_dl_runtime_resolve:
+	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
+
+	.globl	_dl_runtime_profile
+	.usepv	_dl_runtime_profile, no
+	.type	_dl_runtime_profile, @function
+
+	/* We save the registers in a different order than desired by
+	   .mask/.fmask, so we have to use explicit cfi directives.  */
+	cfi_startproc
+
+.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
+
+#undef FRAMESIZE
+#define FRAMESIZE	50*8
+
+_dl_runtime_profile:
+	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($15)
+	ldq	$17, 49($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, .-_dl_runtime_profile