| 1 | /* Copyright (C) 1997-2024 Free Software Foundation, Inc. |
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| 2 | This file is part of the GNU C Library. |
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| 3 | |
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| 4 | The GNU C Library is free software; you can redistribute it and/or |
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| 5 | modify it under the terms of the GNU Lesser General Public |
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| 6 | License as published by the Free Software Foundation; either |
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| 7 | version 2.1 of the License, or (at your option) any later version. |
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| 8 | |
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| 9 | The GNU C Library is distributed in the hope that it will be useful, |
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| 10 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 11 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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| 12 | Lesser General Public License for more details. |
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| 13 | |
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| 14 | You should have received a copy of the GNU Lesser General Public |
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| 15 | License along with the GNU C Library; if not, see |
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| 16 | <https://www.gnu.org/licenses/>. */ |
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| 17 | |
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| 18 | #include <sysdep.h> |
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| 19 | #include "ucontext_i.h" |
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| 20 | |
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| 21 | /* int getcontext(ucontext_t *); */ |
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| 22 | |
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| 23 | ENTRY(__getcontext) |
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| 24 | |
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| 25 | ldx [%o0 + UC_LINK], %o1 /* Preserve uc_link field, the |
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| 26 | trap clears it. */ |
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| 27 | ta 0x6e |
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| 28 | 1: |
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| 29 | ldx [%o0 + UC_M_PC], %o2 |
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| 30 | ldx [%o0 + UC_M_NPC], %o3 |
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| 31 | ldx [%o0 + __UC_SIGMASK], %o4 |
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| 32 | stx %o1, [%o0 + UC_LINK] |
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| 33 | add %o2, 2f - 1b, %o2 |
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| 34 | stx %o2, [%o0 + UC_M_PC] |
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| 35 | add %o3, 2f - 1b, %o3 |
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| 36 | stx %o3, [%o0 + UC_M_NPC] |
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| 37 | #if SIGMASK_WORDS == 16 |
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| 38 | stx %o4, [%o0 + UC_SIGMASK] |
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| 39 | stx %g0, [%o0 + UC_SIGMASK + 8] |
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| 40 | stx %g0, [%o0 + UC_SIGMASK + 16] |
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| 41 | stx %g0, [%o0 + UC_SIGMASK + 24] |
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| 42 | stx %g0, [%o0 + UC_SIGMASK + 32] |
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| 43 | stx %g0, [%o0 + UC_SIGMASK + 40] |
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| 44 | stx %g0, [%o0 + UC_SIGMASK + 48] |
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| 45 | stx %g0, [%o0 + UC_SIGMASK + 56] |
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| 46 | stx %g0, [%o0 + UC_SIGMASK + 64] |
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| 47 | stx %g0, [%o0 + UC_SIGMASK + 72] |
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| 48 | stx %g0, [%o0 + UC_SIGMASK + 80] |
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| 49 | stx %g0, [%o0 + UC_SIGMASK + 88] |
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| 50 | stx %g0, [%o0 + UC_SIGMASK + 96] |
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| 51 | stx %g0, [%o0 + UC_SIGMASK + 104] |
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| 52 | stx %g0, [%o0 + UC_SIGMASK + 112] |
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| 53 | stx %g0, [%o0 + UC_SIGMASK + 120] |
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| 54 | #else |
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| 55 | # error Adjust __getcontext |
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| 56 | #endif |
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| 57 | 2: |
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| 58 | retl |
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| 59 | clr %o0 |
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| 60 | |
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| 61 | END(__getcontext) |
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| 62 | |
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| 63 | weak_alias (__getcontext, getcontext) |
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| 64 | |
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