ObjFW  Check-in [9c630f8f86]

Overview
Comment:Add MIPS/ELF assembly lookup implementation.

Only tested on the PSP so far.

Downloads: Tarball | ZIP archive | SQL archive
Timelines: family | ancestors | descendants | both | trunk
Files: files | file ages | folders
SHA3-256: 9c630f8f86cd2ec802cc5231ba203630378c5d1e017583c814dc64e1df7ca034
User & Date: js on 2013-07-06 00:21:44
Other Links: manifest | tags
Context
2013-07-06
12:50
MIPS lookup: Let the assembler insert the nops. check-in: 8f346088f4 user: js tags: trunk
00:21
Add MIPS/ELF assembly lookup implementation. check-in: 9c630f8f86 user: js tags: trunk
2013-07-05
20:02
Warn if atomic ops AND spinlocks are missing. check-in: 2db4aee23f user: js tags: trunk
Changes
Hide Diffs Side-by-Side Diffs Ignore Whitespace Patch

Modified configure.ac from [2ac906deae] to [6f64066a18].

︙
285
286
287
288
289
290
291












292
293
294
295
296
297
298

285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310








+
+
+
+
+
+
+
+
+
+
+
+








			#if defined(__arm__) || defined(__ARM__)
			# ifdef __ELF__
			yes
			# endif
			#endif
		], [
			AC_SUBST(LOOKUP_S, lookup-arm-elf.S)
			AC_DEFINE(OF_ASM_LOOKUP, 1,
				[Whether to use assembly for lookup])
		])

		AC_EGREP_CPP(yes, [
			#if defined(__mips) && __mips < 64 && defined(__ELF__)
			# if defined(_MIPSEL) || defined(_MIPSEB)
			yes
			# endif
			#endif
		], [
			AC_SUBST(LOOKUP_S, lookup-mips-elf.S)
			AC_DEFINE(OF_ASM_LOOKUP, 1,
				[Whether to use assembly for lookup])
		])

		AS_IF([test x"$enable_seluid24" = x"yes"], [
			AC_DEFINE(OF_SELUID24, 1,
				[Whether to use 24 bit selector UIDs])
︙

Added src/runtime/lookup-mips-elf.S version [7067db37e0]. 




































































































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
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98

+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+

/*
 * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013
 *   Jonathan Schleifer <js@webkeks.org>
 *
 * All rights reserved.
 *
 * This file is part of ObjFW. It may be distributed under the terms of the
 * Q Public License 1.0, which can be found in the file LICENSE.QPL included in
 * the packaging of this file.
 *
 * Alternatively, it may be distributed under the terms of the GNU General
 * Public License, either version 2 or 3, which can be found in the file
 * LICENSE.GPLv2 or LICENSE.GPLv3 respectively included in the packaging of this
 * file.
 */

#include "config.h"

.globl objc_msg_lookup
.globl objc_msg_lookup_super

.section .text
objc_msg_lookup:
	beqz	$a0, ret_nil
	nop

	lw	$t0, 0($a0)
	lw	$t0, 32($t0)

lookup:
#if defined(_MIPSEL)
# ifdef OF_SELUID24
	lbu	$t1, 2($a1)
# endif
	lbu	$t2, 1($a1)
	lbu	$t3, 0($a1)
#elif defined(_MIPSEB)
# ifdef OF_SELUID24
	lbu	$t1, 1($a1)
# endif
	lbu	$t2, 2($a1)
	lbu	$t3, 3($a1)
#else
# error Neither _MIPSEL nor _MIPSEB defined!
#endif

#ifdef OF_SELUID24
	sll	$t1, $t1, 2
#endif
	sll	$t2, $t2, 2
	sll	$t3, $t3, 2

#ifdef OF_SELUID24
	addu	$t0, $t0, $t1
	lw	$t0, 0($t0)
#endif
	addu	$t0, $t0, $t2
	lw	$t0, 0($t0)
	addu	$t0, $t0, $t3
	lw	$t0, 0($t0)

	beqz	$t0, objc_not_found_handler
	nop

	move	$v0, $t0
	j	$ra
	nop

objc_msg_lookup_super:
	lw	$t0, 0($a0)
	beqz	$t0, ret_nil
	nop

	lw	$t0, 4($a0)
	lw	$t0, 32($t0)

	b	lookup
	nop

ret_nil:
	lui	$v0, %hi(nil_method)
	addiu	$v0, %lo(nil_method)
	j	$ra
	nop

nil_method:
	addu	$v0, $zero, $zero
	j	$ra
	nop

.type objc_msg_lookup, %function
.type objc_msg_lookup_super, %function
.size objc_msg_lookup, objc_msg_lookup_super-objc_msg_lookup
.size objc_msg_lookup_super, ret_nil-objc_msg_lookup_super

#ifdef __linux__
.section .note.GNU-stack, "", %progbits
#endif











  
  
 

 


  

    

      Fossil 2.23 [47362306a7] 2023-11-01 18:56:47
    

    This page was generated in about 0.018s