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
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
|
# following code modifies these definitions in the gcc config
# MULTILIB_OPTIONS
# MULTILIB_DIRNAMES
# MULTILIB_OSDIRNAMES
# GLIBC_DYNAMIC_LINKER32
# GLIBC_DYNAMIC_LINKER64
# GLIBC_DYNAMIC_LINKERX32
# GLIBC_DYNAMIC_LINKERN32
# For more information on use of these variables look at these files in the gcc source code
# gcc/config/i386/t-linux64
# gcc/config/mips/t-linux64
# gcc/config/rs6000/t-linux64
# gcc/config/i386/linux64.h
# gcc/config/mips/linux64.h
# gcc/config/rs6000/linux64.h
MULTILIB_OPTION_WHITELIST ??= "-m32 -m64 -mx32 -mabi=n32 -mabi=32 -mabi=64"
python gcc_multilib_setup() {
import re
import shutil
import glob
srcdir = d.getVar('S')
builddir = d.getVar('B')
src_conf_dir = '%s/gcc/config' % srcdir
build_conf_dir = '%s/gcc/config' % builddir
bb.utils.remove(build_conf_dir, True)
ml_globs = ('%s/*/t-linux64' % src_conf_dir,
'%s/*/linux64.h' % src_conf_dir,
'%s/aarch64/t-aarch64' % src_conf_dir,
'%s/aarch64/aarch64.h' % src_conf_dir,
'%s/aarch64/aarch64-cores.def' % src_conf_dir,
'%s/*/linux.h' % src_conf_dir,
'%s/linux.h' % src_conf_dir)
# copy the target multilib config files to ${B}
for ml_glob in ml_globs:
for fn in glob.glob(ml_glob):
rel_path = os.path.relpath(fn, src_conf_dir)
parent_dir = os.path.dirname(rel_path)
bb.utils.mkdirhier('%s/%s' % (build_conf_dir, parent_dir))
bb.utils.copyfile(fn, '%s/%s' % (build_conf_dir, rel_path))
pn = d.getVar('PN')
multilibs = (d.getVar('MULTILIB_VARIANTS') or '').split()
if not multilibs and pn != "nativesdk-gcc":
return
mlprefix = d.getVar('MLPREFIX')
if ('%sgcc' % mlprefix) != pn and (not pn.startswith('gcc-cross-canadian')) and pn != "nativesdk-gcc":
return
def write_config(root, files, options, dirnames, osdirnames):
for ml_conf_file in files:
with open(root + '/' + ml_conf_file, 'r') as f:
filelines = f.readlines()
# recreate multilib configuration variables
substs = [
(r'^(\s*(MULTILIB_OPTIONS\s*=).*)$', r'\2 %s' % '/'.join(options)),
(r'^(\s*MULTILIB_OPTIONS\s*\+=.*)$', ''),
(r'^(\s*(MULTILIB_DIRNAMES\s*=).*)$', r'\2 %s' % ' '.join(dirnames)),
(r'^(\s*MULTILIB_DIRNAMES\s*\+=.*)$', ''),
(r'^(\s*(MULTILIB_OSDIRNAMES\s*=).*)$', r'\2 %s' % ' '.join(osdirnames)),
(r'^(\s*MULTILIB_OSDIRNAMES\s*\+=.*)$', ''),
]
for (i, line) in enumerate(filelines):
for subst in substs:
line = re.sub(subst[0], subst[1], line)
filelines[i] = line
with open(root + '/' + ml_conf_file, 'w') as f:
f.write(''.join(filelines))
def write_headers(root, files, libdir32, libdir64, libdirx32, libdirn32):
def wrap_libdir(libdir):
if libdir.find('SYSTEMLIBS_DIR') != -1:
return '"%r"'
else:
return '"/%s/"' % libdir
for ml_conf_file in files:
fn = root + '/' + ml_conf_file
if not os.path.exists(fn):
continue
with open(fn, 'r') as f:
filelines = f.readlines()
# replace lines like
# #define GLIBC_DYNAMIC_LINKER32 SYSTEMLIBS_DIR "ld-linux.so.2"
# by
# #define GLIBC_DYNAMIC_LINKER32 "/lib/" "ld-linux.so.2"
# this is needed to put the correct dynamic loader path in the generated binaries
substs = [
(r'^(#define\s*GLIBC_DYNAMIC_LINKER32\s*)(\S+)(\s*\".*\")$',
r'\1' + wrap_libdir(libdir32) + r'\3'),
(r'^(#define\s*GLIBC_DYNAMIC_LINKER64\s*)(\S+)(\s*\"\S+\")$',
r'\1' + wrap_libdir(libdir64) + r'\3'),
(r'^(#define\s*GLIBC_DYNAMIC_LINKER64\s*\"\S+\"\s*)(\S+)(\s*\"\S+\"\s*)(\S+)(\s*\".*\")$',
r'\1' + wrap_libdir(libdir64) + r'\3' + wrap_libdir(libdir64) + r'\5'),
(r'^(#define\s*GLIBC_DYNAMIC_LINKERX32\s*)(\S+)(\s*\".*\")$',
r'\1' + wrap_libdir(libdirx32) + r'\3'),
(r'^(#define\s*GLIBC_DYNAMIC_LINKERN32\s*)(\S+)(\s*\".*\")$',
r'\1' + wrap_libdir(libdirn32) + r'\3'),
(r'^(#define\s*UCLIBC_DYNAMIC_LINKER32\s*)(\S+)(\s*\".*\")$',
r'\1' + wrap_libdir(libdir32) + r'\3'),
(r'^(#define\s*UCLIBC_DYNAMIC_LINKER64\s*)(\S+)(\s*\".*\")$',
r'\1' + wrap_libdir(libdir64) + r'\3'),
(r'^(#define\s*UCLIBC_DYNAMIC_LINKERN32\s*)(\S+)(\s*\".*\")$',
r'\1' + wrap_libdir(libdirn32) + r'\3'),
(r'^(#define\s*UCLIBC_DYNAMIC_LINKER\b\s*)(\S+)(\s*\".*\")$',
r'\1' + wrap_libdir(libdir32) + r'\3'),
]
for (i, line) in enumerate(filelines):
for subst in substs:
line = re.sub(subst[0], subst[1], line)
filelines[i] = line
with open(root + '/' + ml_conf_file, 'w') as f:
f.write(''.join(filelines))
gcc_target_config_files = {
'x86_64' : ['gcc/config/i386/t-linux64'],
'i586' : ['gcc/config/i386/t-linux64'],
'i686' : ['gcc/config/i386/t-linux64'],
'mips' : ['gcc/config/mips/t-linux64'],
'mips64' : ['gcc/config/mips/t-linux64'],
'powerpc' : ['gcc/config/rs6000/t-linux64'],
'powerpc64' : ['gcc/config/rs6000/t-linux64'],
'aarch64' : ['gcc/config/aarch64/t-aarch64'],
'arm' : ['gcc/config/aarch64/t-aarch64'],
}
gcc_header_config_files = {
'x86_64' : ['gcc/config/i386/linux64.h'],
'i586' : ['gcc/config/i386/linux64.h'],
'i686' : ['gcc/config/i386/linux64.h'],
'mips' : ['gcc/config/mips/linux.h', 'gcc/config/mips/linux64.h'],
'mips64' : ['gcc/config/mips/linux.h', 'gcc/config/mips/linux64.h'],
'powerpc' : ['gcc/config/rs6000/linux64.h'],
'powerpc64' : ['gcc/config/rs6000/linux64.h'],
'aarch64' : ['gcc/config/aarch64/aarch64.h'],
'arm' : ['gcc/config/aarch64/aarch64.h'],
}
libdir32 = 'SYSTEMLIBS_DIR'
libdir64 = 'SYSTEMLIBS_DIR'
libdirx32 = 'SYSTEMLIBS_DIR'
libdirn32 = 'SYSTEMLIBS_DIR'
target_arch = (d.getVar('TARGET_ARCH_MULTILIB_ORIGINAL') if mlprefix
else d.getVar('TARGET_ARCH'))
if pn == "nativesdk-gcc":
header_config_files = gcc_header_config_files[d.getVar("SDK_ARCH")]
write_headers(builddir, header_config_files, libdir32, libdir64, libdirx32, libdirn32)
return
if target_arch not in gcc_target_config_files:
bb.warn('gcc multilib setup is not supported for TARGET_ARCH=' + target_arch)
return
target_config_files = gcc_target_config_files[target_arch]
header_config_files = gcc_header_config_files[target_arch]
ml_list = ['DEFAULTTUNE_MULTILIB_ORIGINAL' if mlprefix else 'DEFAULTTUNE']
mltunes = [('DEFAULTTUNE_virtclass-multilib-%s' % ml) for ml in multilibs]
if mlprefix:
mlindex = 0
for ml in multilibs:
if mlprefix == ml + '-':
break
mlindex += 1
ml_list.extend(mltunes[:mlindex] + ['DEFAULTTUNE'] + mltunes[(mlindex + 1):])
else:
ml_list.extend(mltunes)
options = []
dirnames = []
osdirnames = []
optsets = []
for ml in ml_list:
tune = d.getVar(ml)
if not tune:
bb.warn("%s doesn't have a corresponding tune. Skipping..." % ml)
continue
tune_parameters = get_tune_parameters(tune, d)
tune_baselib = tune_parameters['baselib']
if not tune_baselib:
bb.warn("Tune %s doesn't have a baselib set. Skipping..." % tune)
continue
if tune_baselib == 'lib64':
libdir64 = tune_baselib
elif tune_baselib == 'libx32':
libdirx32 = tune_baselib
elif tune_baselib == 'lib32':
libdirn32 = tune_baselib
elif tune_baselib == 'lib':
libdir32 = tune_baselib
else:
bb.error('Unknown libdir (%s) of the tune : %s' % (tune_baselib, tune))
# take out '-' mcpu='s and march='s from parameters
opts = []
whitelist = (d.getVar("MULTILIB_OPTION_WHITELIST") or "").split()
for i in d.expand(tune_parameters['ccargs']).split():
if i in whitelist:
# Need to strip '-' from option
opts.append(i[1:])
options.append(" ".join(opts))
if tune_baselib == 'lib':
dirnames.append('32') # /lib => 32bit lib
else:
dirnames.append(tune_baselib.replace('lib', ''))
osdirnames.append('../' + tune_baselib)
write_config(builddir, target_config_files, options, dirnames, osdirnames)
write_headers(builddir, header_config_files, libdir32, libdir64, libdirx32, libdirn32)
}
gcc_multilib_setup[cleandirs] = "${B}/gcc/config"
gcc_multilib_setup[vardepsexclude] = "SDK_ARCH"
EXTRACONFFUNCS += "gcc_multilib_setup"
|
