From 5046dbb4a7eba5eccfd258f92f4735c9ffc8d069 Mon Sep 17 00:00:00 2001 From: Zack Weinberg Date: Thu, 8 Jun 2017 15:39:03 -0400 Subject: Prepare for radical source tree reorganization. All top-level files and directories are moved into a temporary storage directory, REORG.TODO, except for files that will certainly still exist in their current form at top level when we're done (COPYING, COPYING.LIB, LICENSES, NEWS, README), all old ChangeLog files (which are moved to the new directory OldChangeLogs, instead), and the generated file INSTALL (which is just deleted; in the new order, there will be no generated files checked into version control). --- REORG.TODO/sysdeps/hppa/__longjmp.c | 84 +++++++++++++++++++++++++++++++++++++ 1 file changed, 84 insertions(+) create mode 100644 REORG.TODO/sysdeps/hppa/__longjmp.c (limited to 'REORG.TODO/sysdeps/hppa/__longjmp.c') diff --git a/REORG.TODO/sysdeps/hppa/__longjmp.c b/REORG.TODO/sysdeps/hppa/__longjmp.c new file mode 100644 index 0000000000..a7eefc7ad6 --- /dev/null +++ b/REORG.TODO/sysdeps/hppa/__longjmp.c @@ -0,0 +1,84 @@ +/* longjmp for PA-RISC. + Copyright (C) 1997-2017 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library. If not, see + . */ + +#include +#include + +/* Jump to the position specified by ENV, causing the + setjmp call there to return VAL, or 1 if VAL is 0. */ +void +__longjmp (__jmp_buf env, int val) +{ + /* We must use one of the non-callee saves registers + for env. */ + register unsigned long r26 asm ("r26") = (unsigned long)&env[0]; + register unsigned long r25 asm ("r25") = (unsigned long)(val == 0 ? 1 : val); + +#ifdef CHECK_SP + CHECK_SP (env[0].__jmp_buf.__sp); +#endif + + asm volatile( + /* Set return value. */ + "copy %0, %%r28\n\t" + /* Load callee saves from r3 to r18. */ + "ldw 0(%1), %%r3\n\t" + "ldw 8(%1), %%r4\n\t" + "ldw 12(%1), %%r5\n\t" + "ldw 16(%1), %%r6\n\t" + "ldw 20(%1), %%r7\n\t" + "ldw 24(%1), %%r8\n\t" + "ldw 28(%1), %%r9\n\t" + "ldw 32(%1), %%r10\n\t" + "ldw 36(%1), %%r11\n\t" + "ldw 40(%1), %%r12\n\t" + "ldw 44(%1), %%r13\n\t" + "ldw 48(%1), %%r14\n\t" + "ldw 52(%1), %%r15\n\t" + "ldw 56(%1), %%r16\n\t" + "ldw 60(%1), %%r17\n\t" + "ldw 64(%1), %%r18\n\t" + /* Load PIC register. */ + "ldw 68(%1), %%r19\n\t" + /* Load static link register. */ + "ldw 72(%1), %%r27\n\t" + /* Load stack pointer. */ + "ldw 76(%1), %%r30\n\t" + /* Load return pointer. */ + "ldw 80(%1), %%rp\n\t" + /* Ues a spare caller saves register. */ + "ldo 88(%1),%%r25\n\t" + /* Load callee saves from fr12 to fr21. */ + "fldds,ma 8(%%r25), %%fr12\n\t" + "fldds,ma 8(%%r25), %%fr13\n\t" + "fldds,ma 8(%%r25), %%fr14\n\t" + "fldds,ma 8(%%r25), %%fr15\n\t" + "fldds,ma 8(%%r25), %%fr16\n\t" + "fldds,ma 8(%%r25), %%fr17\n\t" + "fldds,ma 8(%%r25), %%fr18\n\t" + "fldds,ma 8(%%r25), %%fr19\n\t" + "fldds,ma 8(%%r25), %%fr20\n\t" + "fldds 0(%%r25), %%fr21\n\t" + /* Jump back to stored return address. */ + "bv,n %%r0(%%r2)\n\t" + : /* No outputs. */ + : "r" (r25), "r" (r26) + : /* No point in clobbers. */ ); + /* Avoid `volatile function does return' warnings. */ + for (;;); +} -- cgit 1.4.1