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/* PLT trampolines. Sparc 32-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
* %g2: callers PC, which is PLT0 + 4, and we store the
* link map at PLT0 + 12, therefore we add 8 to get
* the address of the link map
*/
.globl _dl_runtime_resolve
.type _dl_runtime_resolve, @function
_dl_runtime_resolve:
save %sp, -104, %sp
ld [%g2 + 8], %o0
srl %g1, 10, %o1
call _dl_fixup
sub %o1, 4*12, %o1
jmp %o0
restore
.size _dl_runtime_resolve, .-_dl_runtime_resolve
/* 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:
std %l0, [%sp + ( 0 * 8)]
std %l2, [%sp + ( 1 * 8)]
std %l4, [%sp + ( 2 * 8)]
std %l6, [%sp + ( 3 * 8)]
std %i0, [%sp + ( 4 * 8)]
std %i2, [%sp + ( 5 * 8)]
std %i4, [%sp + ( 6 * 8)]
std %i6, [%sp + ( 7 * 8)]
ld [%sp + (8 * 8)], %l4
retl
st %l4, [%sp + (8 * 8)]
.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:
sub %sp, %l0, %sp
1:
srl %l0, 3, %l7
mov %o0, %l1
mov %i0, %o0
mov %i1, %o1
mov %i2, %o2
mov %i3, %o3
mov %i4, %o4
mov %i5, %o5
mov %fp, %l2
mov %sp, %l3
1: ldd [%l2], %g2
add %l2, 0x8, %l2
subcc %l7, 1, %l7
std %g2, [%l3]
bne 1b
add %l3, 0x8, %l3
jmpl %l1, %o7
nop
std %o0, [%sp + ( 9 * 8)]
std %f0, [%sp + (10 * 8)]
mov %l5, %o0
mov %l6, %o1
add %sp, %l0, %o2
call _dl_call_pltexit
add %sp, (16 * 8), %o3
ldd [%sp + (9 * 8)], %i0
jmpl %i7 + 8, %g0
restore
/* %g1: PLT offset loaded by PLT entry
* %g2: callers PC, which is PLT0 + 4, and we store the
* link map at PLT0 + 12, therefore we add 8 to get
* the address of the link map
*/
.align 32
.globl _dl_runtime_profile
.type _dl_runtime_profile, @function
_dl_runtime_profile:
cmp %fp, 0
be,a 1f
mov 104, %g3
sub %fp, %sp, %g3
1: save %sp, -104, %sp
ld [%g2 + 8], %o0
srl %g1, 10, %o1
mov %i7, %o2
sub %o1, 4*12, %o1
mov %g3, %l0
mov %o0, %l5
mov %o1, %l6
call _dl_profile_save_regs
nop
mov %sp, %o3
call _dl_profile_fixup
add %sp, (9 * 8), %o4
ld [%sp + (9 * 8)], %o1
cmp %o1, 0
bgeu 1f
nop
call _dl_profile_invoke
nop
1: jmp %o0
restore
.size _dl_runtime_profile, .-_dl_runtime_profile
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