1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
|
// SPDX-License-Identifier: GPL-2.0-only
// Copyright (C) 2015-2019 ARM Limited.
// Original author: Dave Martin <Dave.Martin@arm.com>
#ifndef ASSEMBLER_H
#define ASSEMBLER_H
.macro __for from:req, to:req
.if (\from) == (\to)
_for__body %\from
.else
__for \from, %(\from) + ((\to) - (\from)) / 2
__for %(\from) + ((\to) - (\from)) / 2 + 1, \to
.endif
.endm
.macro _for var:req, from:req, to:req, insn:vararg
.macro _for__body \var:req
.noaltmacro
\insn
.altmacro
.endm
.altmacro
__for \from, \to
.noaltmacro
.purgem _for__body
.endm
.macro function name
.macro endfunction
.type \name, @function
.purgem endfunction
.endm
\name:
.endm
.macro define_accessor name, num, insn
.macro \name\()_entry n
\insn \n, 1
ret
.endm
function \name
adr x2, .L__accessor_tbl\@
add x2, x2, x0, lsl #3
br x2
.L__accessor_tbl\@:
_for x, 0, (\num) - 1, \name\()_entry \x
endfunction
.purgem \name\()_entry
.endm
// Utility macro to print a literal string
// Clobbers x0-x4,x8
.macro puts string
.pushsection .rodata.str1.1, "aMS", @progbits, 1
.L__puts_literal\@: .string "\string"
.popsection
ldr x0, =.L__puts_literal\@
bl puts
.endm
#endif /* ! ASSEMBLER_H */
|
