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-rw-r--r--sysdeps/tile/__longjmp.S57
1 files changed, 0 insertions, 57 deletions
diff --git a/sysdeps/tile/__longjmp.S b/sysdeps/tile/__longjmp.S
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--- a/sysdeps/tile/__longjmp.S
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-/* Copyright (C) 2011-2016 Free Software Foundation, Inc.
- This file is part of the GNU C Library.
- Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011.
-
- 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 <sysdep.h>
-#include <jmpbuf-offsets.h>
-#include <asm-syntax.h>
-#include <arch/spr_def.h>
-
-/* PL to return to via iret in longjmp */
-#define RETURN_PL 0
-
- .text
-ENTRY (__longjmp)
- FEEDBACK_ENTER(__longjmp)
-
-#define RESTORE(r) { LD r, r0 ; ADDI_PTR r0, r0, REGSIZE }
- FOR_EACH_CALLEE_SAVED_REG(RESTORE)
-
- /* Make longjmp(buf, 0) return "1" instead.
- At the same time, construct our iret context; we set ICS so
- we can validly load EX_CONTEXT for iret without being
- interrupted halfway through. */
- {
- LD r2, r0 /* retrieve ICS bit from jmp_buf */
- movei r3, 1
- CMPEQI r0, r1, 0
- }
- {
- mtspr INTERRUPT_CRITICAL_SECTION, r3
- shli r2, r2, SPR_EX_CONTEXT_0_1__ICS_SHIFT
- }
- {
- mtspr EX_CONTEXT_0_0, lr
- ori r2, r2, RETURN_PL
- }
- {
- or r0, r1, r0
- mtspr EX_CONTEXT_0_1, r2
- }
- iret
- jrp lr /* Keep the backtracer happy. */
-END (__longjmp)