2 Copyright (C) 1997-2013 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
5 The GNU C Library is free software; you can redistribute it and/or
6 modify it under the terms of the GNU Lesser General Public
7 License as published by the Free Software Foundation; either
8 version 2.1 of the License, or (at your option) any later version.
10 The GNU C Library is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 Lesser General Public License for more details.
15 You should have received a copy of the GNU Lesser General Public
16 License along with the GNU C Library. If not, see
17 <http://www.gnu.org/licenses/>. */
19 /* ??? Needs more rearrangement for the LDM to handle thumb mode. */
24 #include <bits/setjmp.h>
25 #include <rtld-global-offsets.h>
26 #include <arm-features.h>
28 /* __longjmp(jmpbuf, val) */
32 movs r0, r1 /* get the return value in place */
33 moveq r0, #1 /* can't let setjmp() return zero! */
36 ldr r4, [ip, #32] /* jmpbuf's sp */
40 ldmia ip!, {v1-v6, sl, fp, sp, lr}
52 #if !defined ARM_ASSUME_NO_IWMMXT || defined __SOFTFP__
59 ldr a3, .Lrtld_local_ro
62 ldr a2, [a2, #RTLD_GLOBAL_RO_DL_HWCAP_OFFSET]
66 ldr a3, .Lrtld_global_ro
69 ldr a2, [a2, #RTLD_GLOBAL_RO_DL_HWCAP_OFFSET]
78 tst a2, #HWCAP_ARM_VFP
82 /* Restore the VFP registers. */
83 /* Following instruction is vldmia ip!, {d8-d15}. */
84 ldc p11, cr8, [r12], #64
85 /* Restore the floating-point status register. */
87 /* Following instruction is fmxr fpscr, a3. */
88 mcr p10, 7, a3, cr1, cr0, 0
91 #ifndef ARM_ASSUME_NO_IWMMXT
92 tst a2, #HWCAP_ARM_IWMMXT
95 /* Restore the call-preserved iWMMXt registers. */
96 /* Following instructions are wldrd wr10, [ip], #8 (etc.) */
97 ldcl p1, cr10, [r12], #8
98 ldcl p1, cr11, [r12], #8
99 ldcl p1, cr12, [r12], #8
100 ldcl p1, cr13, [r12], #8
101 ldcl p1, cr14, [r12], #8
102 ldcl p1, cr15, [r12], #8
110 1: .long _GLOBAL_OFFSET_TABLE_ - 0b - PC_OFS
112 .long C_SYMBOL_NAME(_rtld_local_ro)(GOTOFF)
115 1: .long _GLOBAL_OFFSET_TABLE_ - 0b - PC_OFS
117 .long C_SYMBOL_NAME(_rtld_global_ro)(GOT)
120 .long C_SYMBOL_NAME(_dl_hwcap)