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Diffstat (limited to 'sysdeps/tile/__longjmp.S')
| -rw-r--r-- | sysdeps/tile/__longjmp.S | 57 |
1 files changed, 0 insertions, 57 deletions
diff --git a/sysdeps/tile/__longjmp.S b/sysdeps/tile/__longjmp.S deleted file mode 100644 index 17d82b92f2..0000000000 --- a/sysdeps/tile/__longjmp.S +++ /dev/null @@ -1,57 +0,0 @@ -/* Copyright (C) 2011-2018 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) |