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-rw-r--r--meta/recipes-devtools/gcc/gcc-multilib-config.inc190
1 files changed, 190 insertions, 0 deletions
diff --git a/meta/recipes-devtools/gcc/gcc-multilib-config.inc b/meta/recipes-devtools/gcc/gcc-multilib-config.inc
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1# following code modifies these definitions in the gcc config
2# MULTILIB_OPTIONS
3# MULTILIB_DIRNAMES
4# MULTILIB_OSDIRNAMES
5# GLIBC_DYNAMIC_LINKER32
6# GLIBC_DYNAMIC_LINKER64
7# GLIBC_DYNAMIC_LINKERX32
8# GLIBC_DYNAMIC_LINKERN32
9# For more information on use of these variables look at these files in the gcc source code
10# gcc/config/i386/t-linux64
11# gcc/config/mips/t-linux64
12# gcc/config/rs6000/t-linux64
13# gcc/config/i386/linux64.h
14# gcc/config/mips/linux64.h
15# gcc/config/rs6000/linux64.h
16
17python gcc_multilib_setup() {
18 import re
19 import shutil
20 import glob
21
22 srcdir = d.getVar('S', True)
23 builddir = d.getVar('B', True)
24 src_conf_dir = '%s/gcc/config' % srcdir
25 build_conf_dir = '%s/gcc/config' % builddir
26
27 bb.utils.remove(build_conf_dir, True)
28 ml_globs = ('%s/*/t-linux64' % src_conf_dir,
29 '%s/*/linux64.h' % src_conf_dir)
30
31 # copy the target multilib config files to ${B}
32 for ml_glob in ml_globs:
33 for fn in glob.glob(ml_glob):
34 rel_path = os.path.relpath(fn, src_conf_dir)
35 parent_dir = os.path.dirname(rel_path)
36 bb.utils.mkdirhier('%s/%s' % (build_conf_dir, parent_dir))
37 bb.copyfile(fn, '%s/%s' % (build_conf_dir, rel_path))
38
39 multilibs = (d.getVar('MULTILIB_VARIANTS', True) or '').split()
40 if not multilibs:
41 return
42
43 mlprefix = d.getVar('MLPREFIX', True)
44 if ('%sgcc' % mlprefix) != d.getVar('PN', True):
45 return
46
47
48 def write_config(root, files, options, dirnames, osdirnames):
49 for ml_conf_file in files:
50 with open(root + '/' + ml_conf_file, 'r') as f:
51 filelines = f.readlines()
52 # recreate multilib configuration variables
53 substs = [
54 (r'^(\s*(MULTILIB_OPTIONS\s*=).*)$', r'\2 %s' % '/'.join(options)),
55 (r'^(\s*MULTILIB_OPTIONS\s*\+=.*)$', ''),
56 (r'^(\s*(MULTILIB_DIRNAMES\s*=).*)$', r'\2 %s' % ' '.join(dirnames)),
57 (r'^(\s*MULTILIB_DIRNAMES\s*\+=.*)$', ''),
58 (r'^(\s*(MULTILIB_OSDIRNAMES\s*=).*)$', r'\2 %s' % ' '.join(osdirnames)),
59 (r'^(\s*MULTILIB_OSDIRNAMES\s*\+=.*)$', ''),
60 ]
61
62 for (i, line) in enumerate(filelines):
63 for subst in substs:
64 line = re.sub(subst[0], subst[1], line)
65 filelines[i] = line
66
67 with open(root + '/' + ml_conf_file, 'w') as f:
68 f.write(''.join(filelines))
69
70 def write_headers(root, files, libdir32, libdir64, libdirx32, libdirn32):
71 def wrap_libdir(libdir):
72 if libdir.find('SYSTEMLIBS_DIR') != -1:
73 return libdir
74 else:
75 return '"/%s/"' % libdir
76
77 for ml_conf_file in files:
78 with open(root + '/' + ml_conf_file, 'r') as f:
79 filelines = f.readlines()
80
81 # replace lines like
82 # #define GLIBC_DYNAMIC_LINKER32 SYSTEMLIBS_DIR "ld-linux.so.2"
83 # by
84 # #define GLIBC_DYNAMIC_LINKER32 "/lib/" "ld-linux.so.2"
85 # this is needed to put the correct dynamic loader path in the generated binaries
86 substs = [
87 (r'^(#define\s*GLIBC_DYNAMIC_LINKER32\s*)(\S+)(\s*\".*\")$',
88 r'\1' + wrap_libdir(libdir32) + r'\3'),
89 (r'^(#define\s*GLIBC_DYNAMIC_LINKER64\s*)(\S+)(\s*\".*\")$',
90 r'\1' + wrap_libdir(libdir64) + r'\3'),
91 (r'^(#define\s*GLIBC_DYNAMIC_LINKERX32\s*)(\S+)(\s*\".*\")$',
92 r'\1' + wrap_libdir(libdirx32) + r'\3'),
93 (r'^(#define\s*GLIBC_DYNAMIC_LINKERN32\s*)(\S+)(\s*\".*\")$',
94 r'\1' + wrap_libdir(libdirn32) + r'\3'),
95 ]
96
97 for (i, line) in enumerate(filelines):
98 for subst in substs:
99 line = re.sub(subst[0], subst[1], line)
100 filelines[i] = line
101
102 with open(root + '/' + ml_conf_file, 'w') as f:
103 f.write(''.join(filelines))
104
105
106 gcc_target_config_files = {
107 'x86_64' : ['gcc/config/i386/t-linux64'],
108 'i586' : ['gcc/config/i386/t-linux64'],
109 'mips' : ['gcc/config/mips/t-linux64'],
110 'powerpc' : ['gcc/config/rs6000/t-linux64'],
111 }
112
113 gcc_header_config_files = {
114 'x86_64' : ['gcc/config/i386/linux64.h'],
115 'i586' : ['gcc/config/i386/linux64.h'],
116 'mips' : ['gcc/config/mips/linux64.h'],
117 'powerpc' : ['gcc/config/rs6000/linux64.h'],
118 }
119
120 target_arch = (d.getVar('TARGET_ARCH_MULTILIB_ORIGINAL', True) if mlprefix
121 else d.getVar('TARGET_ARCH', True))
122 if target_arch not in gcc_target_config_files:
123 bb.warn('gcc multilib setup is not supported for TARGET_ARCH=' + target_arch)
124 return
125
126 libdir32 = 'SYSTEMLIBS_DIR'
127 libdir64 = 'SYSTEMLIBS_DIR'
128 libdirx32 = 'SYSTEMLIBS_DIR'
129 libdirn32 = 'SYSTEMLIBS_DIR'
130
131 target_config_files = gcc_target_config_files[target_arch]
132 header_config_files = gcc_header_config_files[target_arch]
133
134 ml_list = ['DEFAULTTUNE_MULTILIB_ORIGINAL' if mlprefix else 'DEFAULTTUNE']
135 mltunes = [('DEFAULTTUNE_virtclass-multilib-%s' % ml) for ml in multilibs]
136 if mlprefix:
137 mlindex = 0
138 for ml in multilibs:
139 if mlprefix.startswith(ml):
140 break
141 mlindex += 1
142
143 ml_list.extend(mltunes[:mlindex] + ['DEFAULTTUNE'] + mltunes[(mlindex + 1):])
144 else:
145 ml_list.extend(mltunes)
146
147 options = []
148 dirnames = []
149 osdirnames = []
150
151 for ml in ml_list:
152 tune = d.getVar(ml, True)
153 if not tune:
154 bb.warn("%s doesn't have a corresponding tune. Skipping..." % ml)
155 continue
156 tune_parameters = get_tune_parameters(tune, d)
157
158 tune_baselib = tune_parameters['baselib']
159 if not tune_baselib:
160 bb.warn("Tune %s doesn't have a baselib set. Skipping..." % tune)
161 continue
162
163 if tune_baselib == 'lib64':
164 libdir64 = tune_baselib
165 elif tune_baselib == 'libx32':
166 libdirx32 = tune_baselib
167 elif tune_baselib == 'lib32':
168 libdirn32 = tune_baselib
169 elif tune_baselib == 'lib':
170 libdir32 = tune_baselib
171 else:
172 bb.error('Unknown libdir (%s) of the tune : %s' % (tune_baselib, tune))
173
174 # take out '-' and march='s from parameters
175 options.append(re.sub(r'march=[^ ]+ *', '',
176 re.sub(r' +\-+', ' ',
177 re.sub(r'^ *\-+', '', tune_parameters['ccargs']))))
178 if tune_baselib == 'lib':
179 dirnames.append('32') # /lib => 32bit lib
180 else:
181 dirnames.append(tune_baselib.replace('lib', ''))
182 osdirnames.append('../' + tune_baselib)
183
184 write_config(builddir, target_config_files, options, dirnames, osdirnames)
185 write_headers(builddir, header_config_files, libdir32, libdir64, libdirx32, libdirn32)
186}
187
188gcc_multilib_setup[cleandirs] = "${B}/gcc/config"
189
190EXTRACONFFUNCS += "gcc_multilib_setup"