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authorUlrich Drepper <drepper@redhat.com>2005-01-07 11:36:07 +0000
committerUlrich Drepper <drepper@redhat.com>2005-01-07 11:36:07 +0000
commit8222199266b283514206a99247f8e3d3b63e2037 (patch)
tree2ba16e8cdd9f73cd977715c3277326f1220e58f0 /sysdeps/powerpc/powerpc64/dl-trampoline.S
parentea0034f3bf8e5e3733f8193e708db83452cf15c0 (diff)
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Update.
2005-01-07  Ulrich Drepper  <drepper@redhat.com>

	* elf/rtld.c [!DONT_USE_BOOTSTRAP_MAP] (_dl_start_final): Initialize
	l_relocated of rtld map.
	* sysdeps/powerpc/powerpc64/dl-trampoline.S: New file.
	* sysdeps/powerpc/powerpc64/dl-machine.h: Remove trampoline code here.
	Define ARCH_LA_PLTENTER and ARCH_LA_PLTEXIT.
	* sysdeps/generic/ldsodefs.h (struct audif_ifaces): Add ppc64 variants.
	* elf/tst-auditmod1.c: Add ppc64 support.
	* sysdeps/powerpc/powerpc64/bits/link.h: New file.
Diffstat (limited to 'sysdeps/powerpc/powerpc64/dl-trampoline.S')
-rw-r--r--sysdeps/powerpc/powerpc64/dl-trampoline.S118
1 files changed, 118 insertions, 0 deletions
diff --git a/sysdeps/powerpc/powerpc64/dl-trampoline.S b/sysdeps/powerpc/powerpc64/dl-trampoline.S
new file mode 100644
index 0000000000..71d16f2dba
--- /dev/null
+++ b/sysdeps/powerpc/powerpc64/dl-trampoline.S
@@ -0,0 +1,118 @@
+/* PLT trampolines.  PPC64 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>
+
+	.section ".text"
+
+EALIGN(_dl_runtime_resolve, 4, 0)
+/* We need to save the registers used to pass parameters, ie. r3 thru
+   r10; the registers are saved in a stack frame.  */
+	stdu	1,-128(1)
+	std	3,48(1)
+	mr	3,11
+	std	4,56(1)
+	sldi	4,0,1
+	std	5,64(1)
+	add	4,4,0
+	std	6,72(1)
+	sldi	4,4,3
+	std	7,80(1)
+	mflr	0
+	std	8,88(1)
+/* Store the LR in the LR Save area of the previous frame.  */
+	std	0,128+16(1)
+	mfcr	0
+	std	9,96(1)
+	std	10,104(1)
+/* I'm almost certain we don't have to save cr...  be safe.  */
+	std	0,8(1)
+	bl	JUMPTARGET(_dl_fixup)
+/* Put the registers back.  */
+	ld	0,128+16(1)
+	ld	10,104(1)
+	ld	9,96(1)
+	ld	8,88(1)
+	ld	7,80(1)
+	mtlr	0
+	ld	0,8(1)
+	ld	6,72(1)
+	ld	5,64(1)
+	ld	4,56(1)
+	mtcrf	0xFF,0
+/* Load the target address, toc and static chain reg from the function
+   descriptor returned by fixup.  */
+	ld	0,0(3)
+	ld	2,8(3)
+	mtctr	0
+	ld	11,16(3)
+	ld	3,48(1)
+/* Unwind the stack frame, and jump.  */
+	addi	1,1,128
+	bctr
+END(_dl_runtime_resolve)
+
+
+
+EALIGN(_dl_profile_resolve, 4, 0)
+/* We need to save the registers used to pass parameters, ie. r3 thru
+   r10; the registers are saved in a stack frame.  */
+	stdu	1,-128(1)
+	std	3,48(1)
+	mr	3,11
+	std	4,56(1)
+	sldi	4,0,1
+	std	5,64(1)
+	add	4,4,0
+	std	6,72(1)
+	sldi	4,4,3
+	std	7,80(1)
+	mflr	0
+	std	8,88(1)
+/* Store the LR in the LR Save area of the previous frame.  */
+	std	0,128+16(1)
+	mfcr	0
+	std	9,96(1)
+	std	10,104(1)
+/* I'm almost certain we don't have to save cr...  be safe.  */
+	std	0,8(1)
+	bl	JUMPTARGET(_dl_profile_fixup)
+/* Put the registers back.  */
+	ld	0,128+16(1)
+	ld	10,104(1)
+	ld	9,96(1)
+	ld	8,88(1)
+	ld	7,80(1)
+	mtlr	0
+	ld	0,8(1)
+	ld	6,72(1)
+	ld	5,64(1)
+	ld	4,56(1)
+	mtcrf	0xFF,0
+/* Load the target address, toc and static chain reg from the function
+   descriptor returned by fixup.  */
+	ld	0,0(3)
+	ld	2,8(3)
+	mtctr	0
+	ld	11,16(3)
+	ld	3,48(1)
+/* Unwind the stack frame, and jump.  */
+	addi	1,1,128
+	bctr
+END(_dl_profile_resolve)