2 Copyright (C) 1997, 1998 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/>. */
20 #include <bits/arm_asm.h>
23 .type __longjmp,%function
25 #if defined(THUMB1_ONLY)
30 /* can't let setjmp() return zero! */
35 /* Restore registers, shuffling them through low regs. */
37 ldmia r2!, {r4, r5, r6, r7}
45 ldmia r1!, {r4, r5, r6, r7}
49 mov ip, r0 /* save jmp_buf pointer */
51 movs r0, r1 /* get the return value in place */
53 moveq r0, #1 /* can't let setjmp() return zero! */
55 #if defined(__thumb2__)
56 /* Thumb-2 does not allow loading sp with ldm. */
57 ldmia ip!, {v1-v6, sl, fp}
61 ldmia ip!, {v1-v6, sl, fp, sp, lr}
64 #if defined __UCLIBC_HAS_FLOATS__ && ! defined __UCLIBC_HAS_SOFT_FLOAT__
66 /* Restore the VFP registers. */
67 /* Following instruction is fldmiax ip!, {d8-d15}. */
68 ldc p11, cr8, [r12], #68
69 /* Restore the floating-point status register. */
71 /* Following instruction is fmxr fpscr, r1. */
72 mcr p10, 7, r1, cr1, cr0, 0
73 # elif defined __MAVERICK__
74 cfldrd mvd4, [ip], #8 ; nop
75 cfldrd mvd5, [ip], #8 ; nop
76 cfldrd mvd6, [ip], #8 ; nop
77 cfldrd mvd7, [ip], #8 ; nop
78 cfldrd mvd8, [ip], #8 ; nop
79 cfldrd mvd9, [ip], #8 ; nop
80 cfldrd mvd10, [ip], #8 ; nop
81 cfldrd mvd11, [ip], #8 ; nop
82 cfldrd mvd12, [ip], #8 ; nop
83 cfldrd mvd13, [ip], #8 ; nop
84 cfldrd mvd14, [ip], #8 ; nop
85 cfldrd mvd15, [ip], #8
87 lfmfd f4, 4, [ip] ! /* load the floating point regs */
91 /* Restore the call-preserved iWMMXt registers. */
92 /* Following instructions are wldrd wr10, [ip], #8 (etc.) */
93 ldcl p1, cr10, [r12], #8
94 ldcl p1, cr11, [r12], #8
95 ldcl p1, cr12, [r12], #8
96 ldcl p1, cr13, [r12], #8
97 ldcl p1, cr14, [r12], #8
98 ldcl p1, cr15, [r12], #8
101 #if defined(__USE_BX__)
108 .size __longjmp,.-__longjmp
109 libc_hidden_def(__longjmp)