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authorUlrich Drepper <drepper@redhat.com>2005-01-23 05:13:53 +0000
committerUlrich Drepper <drepper@redhat.com>2005-01-23 05:13:53 +0000
commit4bf1073d85f285002d802d184985757b8c4a5192 (patch)
treea94e35bbf19291b274ae41b4a0f96cd558e90807 /sysdeps/ia64/dl-trampoline.S
parent9c9628d9b411ffc68b11468affc7867d10f0d651 (diff)
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Update.
* sysdeps/ia64/dl-machine.h: Remove PLT trampolines here. * sysdeps/ia64/dl-trampoline.S: New file.
Diffstat (limited to 'sysdeps/ia64/dl-trampoline.S')
-rw-r--r--sysdeps/ia64/dl-trampoline.S234
1 files changed, 234 insertions, 0 deletions
diff --git a/sysdeps/ia64/dl-trampoline.S b/sysdeps/ia64/dl-trampoline.S
new file mode 100644
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+++ b/sysdeps/ia64/dl-trampoline.S
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+/* PLT trampolines. ia64 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>
+
+/*
+ This code is used in dl-runtime.c to call the `fixup' function
+ and then redirect to the address it returns. `fixup()' takes two
+ arguments, however profile_fixup() takes three.
+
+ The ABI specifies that we will never see more than 8 input
+ registers to a function call, thus it is safe to simply allocate
+ those, and simpler than playing stack games. */
+
+ENTRY(_dl_runtime_resolve)
+ { .mmi
+ .prologue
+ .save ar.pfs, r40
+ alloc loc0 = ar.pfs, 8, 6, 3, 0
+ adds r2 = -144, r12
+ adds r3 = -128, r12
+ }
+ { .mii
+ .fframe 160
+ adds r12 = -160, r12
+ .save rp, r41
+ mov loc1 = b0
+ .body
+ mov out2 = b0 /* needed by fixup_profile */
+ ;;
+ }
+ { .mfb
+ mov loc2 = r8 /* preserve struct value register */
+ nop.f 0
+ nop.b 0
+ }
+ { .mii
+ mov loc3 = r9 /* preserve language specific register */
+ mov loc4 = r10 /* preserve language specific register */
+ mov loc5 = r11 /* preserve language specific register */
+ }
+ { .mmi
+ stf.spill [r2] = f8, 32
+ stf.spill [r3] = f9, 32
+ mov out0 = r16
+ ;;
+ }
+ { .mmi
+ stf.spill [r2] = f10, 32
+ stf.spill [r3] = f11, 32
+ shl out1 = r15, 4
+ ;;
+ }
+ { .mmi
+ stf.spill [r2] = f12, 32
+ stf.spill [r3] = f13, 32
+ shladd out1 = r15, 3, out1
+ ;;
+ }
+ { .mmb
+ stf.spill [r2] = f14
+ stf.spill [r3] = f15
+ br.call.sptk.many b0 = fixup
+ }
+ { .mii
+ ld8 r9 = [ret0], 8
+ adds r2 = 16, r12
+ adds r3 = 32, r12
+ ;;
+ }
+ { .mmi
+ ldf.fill f8 = [r2], 32
+ ldf.fill f9 = [r3], 32
+ mov b0 = loc1
+ ;;
+ }
+ { .mmi
+ ldf.fill f10 = [r2], 32
+ ldf.fill f11 = [r3], 32
+ mov b6 = r9
+ ;;
+ }
+ { .mmi
+ ldf.fill f12 = [r2], 32
+ ldf.fill f13 = [r3], 32
+ mov ar.pfs = loc0
+ ;;
+ }
+ { .mmi
+ ldf.fill f14 = [r2], 32
+ ldf.fill f15 = [r3], 32
+ .restore sp /* pop the unwind frame state */
+ adds r12 = 160, r12
+ ;;
+ }
+ { .mii
+ mov r9 = loc3 /* restore language specific register */
+ mov r10 = loc4 /* restore language specific register */
+ mov r11 = loc5 /* restore language specific register */
+ }
+ { .mii
+ ld8 gp = [ret0]
+ mov r8 = loc2 /* restore struct value register */
+ ;;
+ }
+ /* An alloc is needed for the break system call to work.
+ We don't care about the old value of the pfs register. */
+ { .mmb
+ .prologue
+ .body
+ alloc r2 = ar.pfs, 0, 0, 8, 0
+ br.sptk.many b6
+ ;;
+ }
+END (_dl_runtime_resolve)
+
+
+ENTRY(_dl_runtime_profile)
+ { .mmi
+ .prologue
+ .save ar.pfs, r40
+ alloc loc0 = ar.pfs, 8, 6, 3, 0
+ adds r2 = -144, r12
+ adds r3 = -128, r12
+ }
+ { .mii
+ .fframe 160
+ adds r12 = -160, r12
+ .save rp, r41
+ mov loc1 = b0
+ .body
+ mov out2 = b0 /* needed by fixup_profile */
+ ;;
+ }
+ { .mfb
+ mov loc2 = r8 /* preserve struct value register */
+ nop.f 0
+ nop.b 0
+ }
+ { .mii
+ mov loc3 = r9 /* preserve language specific register */
+ mov loc4 = r10 /* preserve language specific register */
+ mov loc5 = r11 /* preserve language specific register */
+ }
+ { .mmi
+ stf.spill [r2] = f8, 32
+ stf.spill [r3] = f9, 32
+ mov out0 = r16
+ ;;
+ }
+ { .mmi
+ stf.spill [r2] = f10, 32
+ stf.spill [r3] = f11, 32
+ shl out1 = r15, 4
+ ;;
+ }
+ { .mmi
+ stf.spill [r2] = f12, 32
+ stf.spill [r3] = f13, 32
+ shladd out1 = r15, 3, out1
+ ;;
+ }
+ { .mmb
+ stf.spill [r2] = f14
+ stf.spill [r3] = f15
+ br.call.sptk.many b0 = profile_fixup
+ }
+ { .mii
+ ld8 r9 = [ret0], 8
+ adds r2 = 16, r12
+ adds r3 = 32, r12
+ ;;
+ }
+ { .mmi
+ ldf.fill f8 = [r2], 32
+ ldf.fill f9 = [r3], 32
+ mov b0 = loc1
+ ;;
+ }
+ { .mmi
+ ldf.fill f10 = [r2], 32
+ ldf.fill f11 = [r3], 32
+ mov b6 = r9
+ ;;
+ }
+ { .mmi
+ ldf.fill f12 = [r2], 32
+ ldf.fill f13 = [r3], 32
+ mov ar.pfs = loc0
+ ;;
+ }
+ { .mmi
+ ldf.fill f14 = [r2], 32
+ ldf.fill f15 = [r3], 32
+ .restore sp /* pop the unwind frame state */
+ adds r12 = 160, r12
+ ;;
+ }
+ { .mii
+ mov r9 = loc3 /* restore language specific register */
+ mov r10 = loc4 /* restore language specific register */
+ mov r11 = loc5 /* restore language specific register */
+ }
+ { .mii
+ ld8 gp = [ret0]
+ mov r8 = loc2 /* restore struct value register */
+ ;;
+ }
+ /* An alloc is needed for the break system call to work.
+ We don't care about the old value of the pfs register. */
+ { .mmb
+ .prologue
+ .body
+ alloc r2 = ar.pfs, 0, 0, 8, 0
+ br.sptk.many b6
+ ;;
+ }
+END (_dl_runtime_profile)