projects / thirdparty / glibc.git / blame
| Commit | Line | Data |
|---|---|---|
| b82f6af2 | 1 | /* Copyright (C) 1996, 1997, 2000 Free Software Foundation, Inc. |
| 5107cf1d | 2 | This file is part of the GNU C Library. |
| 28f540f4 RM |
3 | Contributed by Brendan Kehoe (brendan@zen.org). |
| 4 | ||
| 5107cf1d | 5 | The GNU C Library is free software; you can redistribute it and/or |
| 41bdb6e2 AJ |
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. | |
| 28f540f4 | 9 | |
| 5107cf1d UD |
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 | |
| 41bdb6e2 | 13 | Lesser General Public License for more details. |
| 28f540f4 | 14 | |
| 41bdb6e2 AJ |
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. */ | |
| 28f540f4 RM |
19 | |
| 20 | #include <setjmp.h> | |
| 21 | ||
| 22 | /* This function is only called via the assembly language routine | |
| 23 | __sigsetjmp, which arranges to pass in the stack pointer and the frame | |
| 24 | pointer. We do things this way because it's difficult to reliably | |
| 25 | access them in C. */ | |
| 26 | ||
| 27 | int | |
| 28 | __sigsetjmp_aux (jmp_buf env, int savemask, int sp, int fp) | |
| 29 | { | |
| 30 | /* Store the floating point callee-saved registers... */ | |
| 31 | asm volatile ("s.d $f20, %0" : : "m" (env[0].__jmpbuf[0].__fpregs[0])); | |
| 32 | asm volatile ("s.d $f22, %0" : : "m" (env[0].__jmpbuf[0].__fpregs[1])); | |
| 33 | asm volatile ("s.d $f24, %0" : : "m" (env[0].__jmpbuf[0].__fpregs[2])); | |
| 34 | asm volatile ("s.d $f26, %0" : : "m" (env[0].__jmpbuf[0].__fpregs[3])); | |
| 35 | asm volatile ("s.d $f28, %0" : : "m" (env[0].__jmpbuf[0].__fpregs[4])); | |
| 36 | asm volatile ("s.d $f30, %0" : : "m" (env[0].__jmpbuf[0].__fpregs[5])); | |
| 37 | ||
| 38 | /* .. and the PC; */ | |
| 39 | asm volatile ("sw $31, %0" : : "m" (env[0].__jmpbuf[0].__pc)); | |
| 40 | ||
| 41 | /* .. and the stack pointer; */ | |
| b82f6af2 | 42 | env[0].__jmpbuf[0].__sp = (void *) sp; |
| 28f540f4 RM |
43 | |
| 44 | /* .. and the FP; it'll be in s8. */ | |
| b82f6af2 | 45 | env[0].__jmpbuf[0].__fp = (void *) fp; |
| 28f540f4 RM |
46 | |
| 47 | /* .. and the GP; */ | |
| 48 | asm volatile ("sw $gp, %0" : : "m" (env[0].__jmpbuf[0].__gp)); | |
| 49 | ||
| 50 | /* .. and the callee-saved registers; */ | |
| 51 | asm volatile ("sw $16, %0" : : "m" (env[0].__jmpbuf[0].__regs[0])); | |
| 52 | asm volatile ("sw $17, %0" : : "m" (env[0].__jmpbuf[0].__regs[1])); | |
| 53 | asm volatile ("sw $18, %0" : : "m" (env[0].__jmpbuf[0].__regs[2])); | |
| 54 | asm volatile ("sw $19, %0" : : "m" (env[0].__jmpbuf[0].__regs[3])); | |
| 55 | asm volatile ("sw $20, %0" : : "m" (env[0].__jmpbuf[0].__regs[4])); | |
| 56 | asm volatile ("sw $21, %0" : : "m" (env[0].__jmpbuf[0].__regs[5])); | |
| 57 | asm volatile ("sw $22, %0" : : "m" (env[0].__jmpbuf[0].__regs[6])); | |
| 58 | asm volatile ("sw $23, %0" : : "m" (env[0].__jmpbuf[0].__regs[7])); | |
| 59 | ||
| 60 | /* .. and finally get and reconstruct the floating point csr. */ | |
| 61 | asm ("cfc1 %0, $31" : "=r" (env[0].__jmpbuf[0].__fpc_csr)); | |
| 62 | ||
| 63 | /* Save the signal mask if requested. */ | |
| 64 | return __sigjmp_save (env, savemask); | |
| 65 | } |