mirror of
https://sourceware.org/git/glibc.git
synced 2024-11-22 04:50:07 +00:00
86 lines
2.6 KiB
C
86 lines
2.6 KiB
C
/* longjmp for PA-RISC.
|
|
Copyright (C) 1997-2023 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
|
|
<https://www.gnu.org/licenses/>. */
|
|
|
|
#include <setjmp.h>
|
|
#include <stdlib.h>
|
|
|
|
/* 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)
|
|
{
|
|
#ifdef CHECK_SP
|
|
CHECK_SP (env[0].__jmp_buf.__sp);
|
|
#endif
|
|
|
|
/* 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);
|
|
|
|
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"
|
|
/* Use 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 (;;);
|
|
}
|