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- /* Copyright (C) 1997, 1998 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 Library General Public License as
- published by the Free Software Foundation; either version 2 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
- Library General Public License for more details.
- You should have received a copy of the GNU Library General Public
- License along with the GNU C Library; see the file COPYING.LIB. If not,
- see <http://www.gnu.org/licenses/>. */
- #include <jmpbuf-offsets.h>
- #include "NM_Macros.S"
- ;----------------------------------------
- ; Name: __sigsetjmp
- ; Description: Save the current context so
- ; a nr_longjmp works later.
- ; Input: %o0: jmp_buf: (ptr to) array to store context in
- ; Output: %o0 = 0 the first time we're called, or
- ; whatever longjmp returns later
- ; Side Effects: Uses %g0
- ; CWP Depth: 0
- ;
- .align 2
- .global _setjmp
-
- _setjmp:
- br __sigsetjmp
- movi %o1,0 ; (Delay slot) Set signal mask to zero
- .align 2
- .global setjmp
-
- setjmp:
- MOVIP %o1,1 ; Set signal mask to 1 to save mask
- .align 2
- .global __sigsetjmp
- __sigsetjmp:
- pfx jmpbuf_callersret ; present return address
- st [%o0],%i7
- pfx jmpbuf_jmpret ; where the longjmp will later execute from
- st [%o0],%o7
- pfx jmpbuf_sp ; Save stack pointer
- st [%o0],%o6
- pfx jmpbuf_l0 ; Save local register l0
- st [%o0],%l0
- pfx jmpbuf_l1 ; Save local register l1
- st [%o0],%l1
- pfx jmpbuf_l2 ; Save local register l2
- st [%o0],%l2
- pfx jmpbuf_l3 ; Save local register l3
- st [%o0],%l3
- pfx jmpbuf_l4 ; Save local register l4
- st [%o0],%l4
- pfx jmpbuf_l5 ; Save local register l5
- st [%o0],%l5
- pfx jmpbuf_l6 ; Save local register l6
- st [%o0],%l6
- pfx jmpbuf_l7 ; Save local register l7
- st [%o0],%l7
- pfx jmpbuf_i0 ; Save input register i0
- st [%o0],%i0
- pfx jmpbuf_i1 ; Save input register i1
- st [%o0],%i1
- pfx jmpbuf_i2 ; Save input register i2
- st [%o0],%i2
- pfx jmpbuf_i3 ; Save input register i3
- st [%o0],%i3
- pfx jmpbuf_i4 ; Save input register i4
- st [%o0],%i4
- pfx jmpbuf_i5 ; Save input register i5
- st [%o0],%i5
- pfx %hi(__sigjmp_save@h) ; Load up %g0 with address
- movi %g0,%lo(__sigjmp_save@h)
- pfx %xhi(__sigjmp_save@h)
- movhi %g0,%xlo(__sigjmp_save@h)
- jmp %g0
- nop ; (delay slot)
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