| yuezonghe | 824eb0c | 2024-06-27 02:32:26 -0700 | [diff] [blame] | 1 | /* Copyright (C) 1997, 1998 Free Software Foundation, Inc. |
| 2 | This file is part of the GNU C Library. |
| 3 | |
| 4 | The GNU C Library is free software; you can redistribute it and/or |
| 5 | modify it under the terms of the GNU Library General Public License as |
| 6 | published by the Free Software Foundation; either version 2 of the |
| 7 | License, or (at your option) any later version. |
| 8 | |
| 9 | The GNU C Library is distributed in the hope that it will be useful, |
| 10 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 11 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 12 | Library General Public License for more details. |
| 13 | |
| 14 | You should have received a copy of the GNU Library General Public |
| 15 | License along with the GNU C Library; see the file COPYING.LIB. If not, |
| 16 | write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, |
| 17 | Boston, MA 02111-1307, USA. */ |
| 18 | |
| 19 | #include <features.h> |
| 20 | #define _ASM |
| 21 | #define _SETJMP_H |
| 22 | #include <bits/setjmp.h> |
| 23 | #include "NM_Macros.S" |
| 24 | |
| 25 | ;---------------------------------------- |
| 26 | ; Name: __sigsetjmp |
| 27 | ; Description: Save the current context so |
| 28 | ; a nr_longjmp works later. |
| 29 | ; Input: %o0: jmp_buf: (ptr to) array to store context in |
| 30 | ; Output: %o0 = 0 the first time we're called, or |
| 31 | ; whatever longjmp returns later |
| 32 | ; Side Effects: Uses %g0 |
| 33 | ; CWP Depth: 0 |
| 34 | ; |
| 35 | |
| 36 | .align 2 |
| 37 | .global _setjmp |
| 38 | |
| 39 | _setjmp: |
| 40 | br __sigsetjmp |
| 41 | movi %o1,0 ; (Delay slot) Set signal mask to zero |
| 42 | |
| 43 | .align 2 |
| 44 | .global setjmp |
| 45 | |
| 46 | setjmp: |
| 47 | MOVIP %o1,1 ; Set signal mask to 1 to save mask |
| 48 | |
| 49 | .align 2 |
| 50 | .global __sigsetjmp |
| 51 | |
| 52 | __sigsetjmp: |
| 53 | pfx jmpbuf_callersret ; present return address |
| 54 | st [%o0],%i7 |
| 55 | pfx jmpbuf_jmpret ; where the longjmp will later execute from |
| 56 | st [%o0],%o7 |
| 57 | pfx jmpbuf_sp ; Save stack pointer |
| 58 | st [%o0],%o6 |
| 59 | pfx jmpbuf_l0 ; Save local register l0 |
| 60 | st [%o0],%l0 |
| 61 | pfx jmpbuf_l1 ; Save local register l1 |
| 62 | st [%o0],%l1 |
| 63 | pfx jmpbuf_l2 ; Save local register l2 |
| 64 | st [%o0],%l2 |
| 65 | pfx jmpbuf_l3 ; Save local register l3 |
| 66 | st [%o0],%l3 |
| 67 | pfx jmpbuf_l4 ; Save local register l4 |
| 68 | st [%o0],%l4 |
| 69 | pfx jmpbuf_l5 ; Save local register l5 |
| 70 | st [%o0],%l5 |
| 71 | pfx jmpbuf_l6 ; Save local register l6 |
| 72 | st [%o0],%l6 |
| 73 | pfx jmpbuf_l7 ; Save local register l7 |
| 74 | st [%o0],%l7 |
| 75 | pfx jmpbuf_i0 ; Save input register i0 |
| 76 | st [%o0],%i0 |
| 77 | pfx jmpbuf_i1 ; Save input register i1 |
| 78 | st [%o0],%i1 |
| 79 | pfx jmpbuf_i2 ; Save input register i2 |
| 80 | st [%o0],%i2 |
| 81 | pfx jmpbuf_i3 ; Save input register i3 |
| 82 | st [%o0],%i3 |
| 83 | pfx jmpbuf_i4 ; Save input register i4 |
| 84 | st [%o0],%i4 |
| 85 | pfx jmpbuf_i5 ; Save input register i5 |
| 86 | st [%o0],%i5 |
| 87 | pfx %hi(__sigjmp_save@h) ; Load up %g0 with address |
| 88 | movi %g0,%lo(__sigjmp_save@h) |
| 89 | pfx %xhi(__sigjmp_save@h) |
| 90 | movhi %g0,%xlo(__sigjmp_save@h) |
| 91 | jmp %g0 |
| 92 | nop ; (delay slot) |
| 93 | |
| 94 | |
| 95 | |
| 96 | |
| 97 | |
| 98 | |
| 99 | |
| 100 | |
| 101 | |
| 102 | |