| 1 | /* longjmp for PA-RISC. |
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| 2 | Copyright (C) 1997-2022 Free Software Foundation, Inc. |
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| 3 | This file is part of the GNU C Library. |
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| 4 | |
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| 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 |
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| 7 | License as published by the Free Software Foundation; either |
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| 8 | version 2.1 of the License, or (at your option) any later version. |
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| 9 | |
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| 10 | The GNU C Library is distributed in the hope that it will be useful, |
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| 11 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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| 13 | Lesser General Public License for more details. |
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| 14 | |
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| 15 | You should have received a copy of the GNU Lesser General Public |
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| 16 | License along with the GNU C Library. If not, see |
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| 17 | <https://www.gnu.org/licenses/>. */ |
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| 18 | |
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| 19 | #include <setjmp.h> |
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| 20 | #include <stdlib.h> |
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| 21 | |
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| 22 | /* Jump to the position specified by ENV, causing the |
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| 23 | setjmp call there to return VAL, or 1 if VAL is 0. */ |
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| 24 | void |
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| 25 | __longjmp (__jmp_buf env, int val) |
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| 26 | { |
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| 27 | #ifdef CHECK_SP |
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| 28 | CHECK_SP (env[0].__jmp_buf.__sp); |
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| 29 | #endif |
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| 30 | |
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| 31 | /* We must use one of the non-callee saves registers |
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| 32 | for env. */ |
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| 33 | register unsigned long r26 asm ("r26" ) = (unsigned long)&env[0]; |
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| 34 | register unsigned long r25 asm ("r25" ) = (unsigned long)(val == 0 ? 1 : val); |
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| 35 | |
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| 36 | asm volatile( |
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| 37 | /* Set return value. */ |
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| 38 | "copy %0, %%r28\n\t" |
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| 39 | /* Load callee saves from r3 to r18. */ |
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| 40 | "ldw 0(%1), %%r3\n\t" |
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| 41 | "ldw 8(%1), %%r4\n\t" |
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| 42 | "ldw 12(%1), %%r5\n\t" |
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| 43 | "ldw 16(%1), %%r6\n\t" |
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| 44 | "ldw 20(%1), %%r7\n\t" |
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| 45 | "ldw 24(%1), %%r8\n\t" |
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| 46 | "ldw 28(%1), %%r9\n\t" |
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| 47 | "ldw 32(%1), %%r10\n\t" |
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| 48 | "ldw 36(%1), %%r11\n\t" |
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| 49 | "ldw 40(%1), %%r12\n\t" |
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| 50 | "ldw 44(%1), %%r13\n\t" |
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| 51 | "ldw 48(%1), %%r14\n\t" |
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| 52 | "ldw 52(%1), %%r15\n\t" |
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| 53 | "ldw 56(%1), %%r16\n\t" |
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| 54 | "ldw 60(%1), %%r17\n\t" |
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| 55 | "ldw 64(%1), %%r18\n\t" |
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| 56 | /* Load PIC register. */ |
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| 57 | "ldw 68(%1), %%r19\n\t" |
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| 58 | /* Load static link register. */ |
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| 59 | "ldw 72(%1), %%r27\n\t" |
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| 60 | /* Load stack pointer. */ |
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| 61 | "ldw 76(%1), %%r30\n\t" |
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| 62 | /* Load return pointer. */ |
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| 63 | "ldw 80(%1), %%rp\n\t" |
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| 64 | /* Ues a spare caller saves register. */ |
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| 65 | "ldo 88(%1),%%r25\n\t" |
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| 66 | /* Load callee saves from fr12 to fr21. */ |
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| 67 | "fldds,ma 8(%%r25), %%fr12\n\t" |
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| 68 | "fldds,ma 8(%%r25), %%fr13\n\t" |
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| 69 | "fldds,ma 8(%%r25), %%fr14\n\t" |
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| 70 | "fldds,ma 8(%%r25), %%fr15\n\t" |
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| 71 | "fldds,ma 8(%%r25), %%fr16\n\t" |
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| 72 | "fldds,ma 8(%%r25), %%fr17\n\t" |
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| 73 | "fldds,ma 8(%%r25), %%fr18\n\t" |
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| 74 | "fldds,ma 8(%%r25), %%fr19\n\t" |
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| 75 | "fldds,ma 8(%%r25), %%fr20\n\t" |
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| 76 | "fldds 0(%%r25), %%fr21\n\t" |
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| 77 | /* Jump back to stored return address. */ |
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| 78 | "bv,n %%r0(%%r2)\n\t" |
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| 79 | : /* No outputs. */ |
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| 80 | : "r" (r25), "r" (r26) |
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| 81 | : /* No point in clobbers. */ ); |
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| 82 | |
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| 83 | /* Avoid `volatile function does return' warnings. */ |
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| 84 | for (;;); |
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| 85 | } |
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| 86 | |
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