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authorCarlos O'Donell <carlos@systemhalted.org>2014-04-29 03:08:48 -0400
committerCarlos O'Donell <carlos@systemhalted.org>2014-04-29 04:20:39 -0400
commit5abebba403181de898bbea4ee1bcce5f088c663b (patch)
tree0c4a8eac85e1f2db87621b524bfcbdeb24c2c8f9 /sysdeps/hppa/__longjmp.c
parent4e4a58f4ee45cea6f3083af8f12d3834bb999555 (diff)
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Relocate hppa from ports to libc.
Diffstat (limited to 'sysdeps/hppa/__longjmp.c')
-rw-r--r--sysdeps/hppa/__longjmp.c84
1 files changed, 84 insertions, 0 deletions
diff --git a/sysdeps/hppa/__longjmp.c b/sysdeps/hppa/__longjmp.c
new file mode 100644
index 0000000..cb1aed1
--- /dev/null
+++ b/sysdeps/hppa/__longjmp.c
@@ -0,0 +1,84 @@
+/* longjmp for PA-RISC.
+ Copyright (C) 1997-2014 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
+ <http://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)
+{
+ /* 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 (;;);
+}