xref: /netbsd-src/external/lgpl3/gmp/dist/mpn/x86_64/darwin.m4 (revision 1580a27b92f58fcdcb23fdfbc04a7c2b54a0b7c8)
1divert(-1)
2dnl  Copyright 2008, 2011, 2012 Free Software Foundation, Inc.
3dnl
4dnl  This file is part of the GNU MP Library.
5dnl
6dnl  The GNU MP Library is free software; you can redistribute it and/or modify
7dnl  it under the terms of either:
8dnl
9dnl    * the GNU Lesser General Public License as published by the Free
10dnl      Software Foundation; either version 3 of the License, or (at your
11dnl      option) any later version.
12dnl
13dnl  or
14dnl
15dnl    * the GNU General Public License as published by the Free Software
16dnl      Foundation; either version 2 of the License, or (at your option) any
17dnl      later version.
18dnl
19dnl  or both in parallel, as here.
20dnl
21dnl  The GNU MP Library is distributed in the hope that it will be useful, but
22dnl  WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
23dnl  or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
24dnl  for more details.
25dnl
26dnl  You should have received copies of the GNU General Public License and the
27dnl  GNU Lesser General Public License along with the GNU MP Library.  If not,
28dnl  see https://www.gnu.org/licenses/.
29
30define(`DARWIN')
31
32define(`LEA',`dnl
33ifdef(`PIC',
34	`lea	$1(%rip), $2'
35,
36	`movabs	`$'$1, $2')
37')
38
39dnl  Usage: CALL(funcname)
40dnl
41dnl  Simply override the definition in x86_64-defs.m4.
42
43define(`CALL',`call	GSYM_PREFIX`'$1')
44
45
46dnl  Usage: JUMPTABSECT
47dnl
48dnl  CAUTION: Do not put anything sensible here, like RODATA.  That works with
49dnl  some Darwin tool chains, but silently breaks with other.  (Note that
50dnl  putting jump tables in the text segment is a really poor idea for PC many
51dnl  processors, since they cannot cache the same thing in both L1D and L2I.)
52
53define(`JUMPTABSECT', `.text')
54
55
56dnl  Usage: JMPENT(targlabel,tablabel)
57
58define(`JMPENT',`dnl
59ifdef(`PIC',
60	`.set	$1_tmp, $1-$2
61	.long	$1_tmp'
62,
63	`.quad	$1'
64)')
65
66dnl  Target ABI macros.  For Darwin we override IFELF (and leave default for
67dnl  IFDOS and IFSTD).
68
69define(`IFELF',   `')
70
71
72dnl  Usage: PROTECT(symbol)
73dnl
74dnl  Used for private GMP symbols that should never be overridden by users.
75dnl  This can save reloc entries and improve shlib sharing as well as
76dnl  application startup times
77
78define(`PROTECT',  `.private_extern $1')
79
80
81divert`'dnl
82