1 /* Copyright (C) 1996, 1997, 2000 Free Software Foundation, Inc.
2 This file is part of the GNU C Library.
3 Contributed by Brendan Kehoe (brendan@zen.org).
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/>. */
24 /* This function is only called via the assembly language routine
25 __sigsetjmp, which arranges to pass in the stack pointer and the frame
26 pointer. We do things this way because it's difficult to reliably
30 #if _MIPS_SIM == _MIPS_SIM_ABI64
31 __sigsetjmp_aux (jmp_buf env, int savemask, long long sp, long long fp, long long gp)
32 #else /* O32 || N32 */
33 __sigsetjmp_aux (jmp_buf env, int savemask, int sp, int fp)
34 #endif /* O32 || N32 */
36 #if defined __UCLIBC_HAS_FLOATS__ && ! defined __UCLIBC_HAS_SOFT_FLOAT__
37 /* Store the floating point callee-saved registers... */
38 #if _MIPS_SIM == _MIPS_SIM_ABI64
39 __asm__ __volatile__ ("s.d $f24, %0" : : "m" (env[0].__jmpbuf[0].__fpregs[0]));
40 __asm__ __volatile__ ("s.d $f25, %0" : : "m" (env[0].__jmpbuf[0].__fpregs[1]));
41 __asm__ __volatile__ ("s.d $f26, %0" : : "m" (env[0].__jmpbuf[0].__fpregs[2]));
42 __asm__ __volatile__ ("s.d $f27, %0" : : "m" (env[0].__jmpbuf[0].__fpregs[3]));
43 __asm__ __volatile__ ("s.d $f28, %0" : : "m" (env[0].__jmpbuf[0].__fpregs[4]));
44 __asm__ __volatile__ ("s.d $f29, %0" : : "m" (env[0].__jmpbuf[0].__fpregs[5]));
45 __asm__ __volatile__ ("s.d $f30, %0" : : "m" (env[0].__jmpbuf[0].__fpregs[6]));
46 __asm__ __volatile__ ("s.d $f31, %0" : : "m" (env[0].__jmpbuf[0].__fpregs[7]));
47 #else /* O32 || N32 */
48 __asm__ __volatile__ ("s.d $f20, %0" : : "m" (env[0].__jmpbuf[0].__fpregs[0]));
49 __asm__ __volatile__ ("s.d $f22, %0" : : "m" (env[0].__jmpbuf[0].__fpregs[1]));
50 __asm__ __volatile__ ("s.d $f24, %0" : : "m" (env[0].__jmpbuf[0].__fpregs[2]));
51 __asm__ __volatile__ ("s.d $f26, %0" : : "m" (env[0].__jmpbuf[0].__fpregs[3]));
52 __asm__ __volatile__ ("s.d $f28, %0" : : "m" (env[0].__jmpbuf[0].__fpregs[4]));
53 __asm__ __volatile__ ("s.d $f30, %0" : : "m" (env[0].__jmpbuf[0].__fpregs[5]));
54 #endif /* O32 || N32 */
58 #if _MIPS_SIM == _MIPS_SIM_ABI64
59 __asm__ __volatile__ ("sd $31, %0" : : "m" (env[0].__jmpbuf[0].__pc));
61 __asm__ __volatile__ ("sw $31, %0" : : "m" (env[0].__jmpbuf[0].__pc));
64 /* .. and the stack pointer; */
65 env[0].__jmpbuf[0].__sp = (ptrsize) sp;
67 /* .. and the FP; it'll be in s8. */
68 env[0].__jmpbuf[0].__fp = (ptrsize) fp;
71 #if _MIPS_SIM == _MIPS_SIM_ABI64
72 env[0].__jmpbuf[0].__gp = (ptrsize) gp;
74 __asm__ __volatile__ ("sw $gp, %0" : : "m" (env[0].__jmpbuf[0].__gp));
77 /* .. and the callee-saved registers; */
78 #if (_MIPS_SIM == _MIPS_SIM_ABI32)
79 __asm__ __volatile__ ("sw $16, %0" : : "m" (env[0].__jmpbuf[0].__regs[0]));
80 __asm__ __volatile__ ("sw $17, %0" : : "m" (env[0].__jmpbuf[0].__regs[1]));
81 __asm__ __volatile__ ("sw $18, %0" : : "m" (env[0].__jmpbuf[0].__regs[2]));
82 __asm__ __volatile__ ("sw $19, %0" : : "m" (env[0].__jmpbuf[0].__regs[3]));
83 __asm__ __volatile__ ("sw $20, %0" : : "m" (env[0].__jmpbuf[0].__regs[4]));
84 __asm__ __volatile__ ("sw $21, %0" : : "m" (env[0].__jmpbuf[0].__regs[5]));
85 __asm__ __volatile__ ("sw $22, %0" : : "m" (env[0].__jmpbuf[0].__regs[6]));
86 __asm__ __volatile__ ("sw $23, %0" : : "m" (env[0].__jmpbuf[0].__regs[7]));
87 #else /* N32 || N64 */
88 __asm__ __volatile__ ("sd $16, %0" : : "m" (env[0].__jmpbuf[0].__regs[0]));
89 __asm__ __volatile__ ("sd $17, %0" : : "m" (env[0].__jmpbuf[0].__regs[1]));
90 __asm__ __volatile__ ("sd $18, %0" : : "m" (env[0].__jmpbuf[0].__regs[2]));
91 __asm__ __volatile__ ("sd $19, %0" : : "m" (env[0].__jmpbuf[0].__regs[3]));
92 __asm__ __volatile__ ("sd $20, %0" : : "m" (env[0].__jmpbuf[0].__regs[4]));
93 __asm__ __volatile__ ("sd $21, %0" : : "m" (env[0].__jmpbuf[0].__regs[5]));
94 __asm__ __volatile__ ("sd $22, %0" : : "m" (env[0].__jmpbuf[0].__regs[6]));
95 __asm__ __volatile__ ("sd $23, %0" : : "m" (env[0].__jmpbuf[0].__regs[7]));
96 #endif /* N32 || N64 */
98 #if defined __UCLIBC_HAS_FLOATS__ && ! defined __UCLIBC_HAS_SOFT_FLOAT__
99 /* .. and finally get and reconstruct the floating point csr. */
100 __asm__ ("cfc1 %0, $31" : "=r" (env[0].__jmpbuf[0].__fpc_csr));
103 /* Save the signal mask if requested. */
104 return __sigjmp_save (env, savemask);