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zfs/module/lua/setjmp/setjmp_s390x.S

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OpenZFS 7431 - ZFS Channel Programs Authored by: Chris Williamson <chris.williamson@delphix.com> Reviewed by: Matthew Ahrens <mahrens@delphix.com> Reviewed by: George Wilson <george.wilson@delphix.com> Reviewed by: John Kennedy <john.kennedy@delphix.com> Reviewed by: Dan Kimmel <dan.kimmel@delphix.com> Approved by: Garrett D'Amore <garrett@damore.org> Ported-by: Don Brady <don.brady@delphix.com> Ported-by: John Kennedy <john.kennedy@delphix.com> OpenZFS-issue: https://www.illumos.org/issues/7431 OpenZFS-commit: https://github.com/openzfs/openzfs/commit/dfc11533 Porting Notes: * The CLI long option arguments for '-t' and '-m' don't parse on linux * Switched from kmem_alloc to vmem_alloc in zcp_lua_alloc * Lua implementation is built as its own module (zlua.ko) * Lua headers consumed directly by zfs code moved to 'include/sys/lua/' * There is no native setjmp/longjump available in stock Linux kernel. Brought over implementations from illumos and FreeBSD * The get_temporary_prop() was adapted due to VFS platform differences * Use of inline functions in lua parser to reduce stack usage per C call * Skip some ZFS Test Suite ZCP tests on sparc64 to avoid stack overflow
2018-02-08 16:16:23 +00:00
/*
* Copyright (c) 2005-2014 Rich Felker, et al.
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
.global setjmp
.type setjmp,@function
setjmp:
stmg %r6, %r15, 0(%r2)
std %f8, 10*8(%r2)
std %f9, 11*8(%r2)
std %f10, 12*8(%r2)
std %f11, 13*8(%r2)
std %f12, 14*8(%r2)
std %f13, 15*8(%r2)
std %f14, 16*8(%r2)
std %f15, 17*8(%r2)
lghi %r2, 0
br %r14
.global longjmp
.type longjmp,@function
longjmp:
1:
lmg %r6, %r15, 0(%r2)
ld %f8, 10*8(%r2)
ld %f9, 11*8(%r2)
ld %f10, 12*8(%r2)
ld %f11, 13*8(%r2)
ld %f12, 14*8(%r2)
ld %f13, 15*8(%r2)
ld %f14, 16*8(%r2)
ld %f15, 17*8(%r2)
ltgr %r2, %r3
bnzr %r14
lhi %r2, 1
br %r14
#ifdef __ELF__
.section .note.GNU-stack,"",%progbits
#endif