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24c4c341 | 1 | /* Copyright (C) 1996, 1997, 2003, 2004 Free Software Foundation, Inc. |
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2 | This file is part of the GNU C Library. |
3 | Contributed by Brendan Kehoe (brendan@zen.org). | |
4 | ||
5 | The GNU C Library is free software; you can redistribute it and/or | |
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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. | |
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9 | |
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 | |
3214b89b | 13 | Lesser General Public License for more details. |
d0c2d3b3 | 14 | |
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15 | You should have received a copy of the GNU Lesser General Public |
16 | License along with the GNU C Library; if not, write to the Free | |
17 | Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA | |
18 | 02111-1307 USA. */ | |
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19 | |
20 | #include <setjmp.h> | |
b8ddf7a1 | 21 | #include <sgidefs.h> |
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22 | |
23 | /* This function is only called via the assembly language routine | |
24 | __sigsetjmp, which arranges to pass in the stack pointer and the frame | |
25 | pointer. We do things this way because it's difficult to reliably | |
26 | access them in C. */ | |
27 | ||
28 | int | |
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29 | __sigsetjmp_aux (jmp_buf env, int savemask, long long sp, long long fp, |
30 | long long gp) | |
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31 | { |
32 | /* Store the floating point callee-saved registers... */ | |
b8ddf7a1 | 33 | #if _MIPS_SIM == _ABI64 |
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34 | asm volatile ("s.d $f24, %0" : : "m" (env[0].__jmpbuf[0].__fpregs[0])); |
35 | asm volatile ("s.d $f25, %0" : : "m" (env[0].__jmpbuf[0].__fpregs[1])); | |
36 | asm volatile ("s.d $f26, %0" : : "m" (env[0].__jmpbuf[0].__fpregs[2])); | |
37 | asm volatile ("s.d $f27, %0" : : "m" (env[0].__jmpbuf[0].__fpregs[3])); | |
38 | asm volatile ("s.d $f28, %0" : : "m" (env[0].__jmpbuf[0].__fpregs[4])); | |
39 | asm volatile ("s.d $f29, %0" : : "m" (env[0].__jmpbuf[0].__fpregs[5])); | |
40 | asm volatile ("s.d $f30, %0" : : "m" (env[0].__jmpbuf[0].__fpregs[6])); | |
41 | asm volatile ("s.d $f31, %0" : : "m" (env[0].__jmpbuf[0].__fpregs[7])); | |
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42 | #else |
43 | asm volatile ("s.d $f20, %0" : : "m" (env[0].__jmpbuf[0].__fpregs[0])); | |
44 | asm volatile ("s.d $f22, %0" : : "m" (env[0].__jmpbuf[0].__fpregs[1])); | |
45 | asm volatile ("s.d $f24, %0" : : "m" (env[0].__jmpbuf[0].__fpregs[2])); | |
46 | asm volatile ("s.d $f26, %0" : : "m" (env[0].__jmpbuf[0].__fpregs[3])); | |
47 | asm volatile ("s.d $f28, %0" : : "m" (env[0].__jmpbuf[0].__fpregs[4])); | |
48 | asm volatile ("s.d $f30, %0" : : "m" (env[0].__jmpbuf[0].__fpregs[5])); | |
49 | #endif | |
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50 | |
51 | /* .. and the PC; */ | |
52 | asm volatile ("sd $31, %0" : : "m" (env[0].__jmpbuf[0].__pc)); | |
53 | ||
54 | /* .. and the stack pointer; */ | |
55 | env[0].__jmpbuf[0].__sp = sp; | |
56 | ||
57 | /* .. and the FP; it'll be in s8. */ | |
58 | env[0].__jmpbuf[0].__fp = fp; | |
59 | ||
60 | /* .. and the GP; */ | |
19ca28fb | 61 | env[0].__jmpbuf[0].__gp = gp; |
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62 | |
63 | /* .. and the callee-saved registers; */ | |
64 | asm volatile ("sd $16, %0" : : "m" (env[0].__jmpbuf[0].__regs[0])); | |
65 | asm volatile ("sd $17, %0" : : "m" (env[0].__jmpbuf[0].__regs[1])); | |
66 | asm volatile ("sd $18, %0" : : "m" (env[0].__jmpbuf[0].__regs[2])); | |
67 | asm volatile ("sd $19, %0" : : "m" (env[0].__jmpbuf[0].__regs[3])); | |
68 | asm volatile ("sd $20, %0" : : "m" (env[0].__jmpbuf[0].__regs[4])); | |
69 | asm volatile ("sd $21, %0" : : "m" (env[0].__jmpbuf[0].__regs[5])); | |
70 | asm volatile ("sd $22, %0" : : "m" (env[0].__jmpbuf[0].__regs[6])); | |
71 | asm volatile ("sd $23, %0" : : "m" (env[0].__jmpbuf[0].__regs[7])); | |
72 | ||
73 | /* .. and finally get and reconstruct the floating point csr. */ | |
74 | asm ("cfc1 %0, $31" : "=r" (env[0].__jmpbuf[0].__fpc_csr)); | |
75 | ||
76 | /* Save the signal mask if requested. */ | |
77 | return __sigjmp_save (env, savemask); | |
78 | } |