gcc-multilib-config.inc 9.4 KB

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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. MULTILIB_OPTION_WHITELIST ??= "-m32 -m64 -mx32 -mabi=n32 -mabi=32 -mabi=64"
  17. python gcc_multilib_setup() {
  18. import re
  19. import shutil
  20. import glob
  21. srcdir = d.getVar('S')
  22. builddir = d.getVar('B')
  23. src_conf_dir = '%s/gcc/config' % srcdir
  24. build_conf_dir = '%s/gcc/config' % builddir
  25. bb.utils.remove(build_conf_dir, True)
  26. ml_globs = ('%s/*/t-linux64' % src_conf_dir,
  27. '%s/*/linux64.h' % src_conf_dir,
  28. '%s/aarch64/t-aarch64' % src_conf_dir,
  29. '%s/aarch64/aarch64.h' % src_conf_dir,
  30. '%s/aarch64/aarch64-cores.def' % src_conf_dir,
  31. '%s/*/linux.h' % src_conf_dir,
  32. '%s/linux.h' % src_conf_dir)
  33. # copy the target multilib config files to ${B}
  34. for ml_glob in ml_globs:
  35. for fn in glob.glob(ml_glob):
  36. rel_path = os.path.relpath(fn, src_conf_dir)
  37. parent_dir = os.path.dirname(rel_path)
  38. bb.utils.mkdirhier('%s/%s' % (build_conf_dir, parent_dir))
  39. bb.utils.copyfile(fn, '%s/%s' % (build_conf_dir, rel_path))
  40. pn = d.getVar('PN')
  41. multilibs = (d.getVar('MULTILIB_VARIANTS') or '').split()
  42. if not multilibs and pn != "nativesdk-gcc":
  43. return
  44. mlprefix = d.getVar('MLPREFIX')
  45. if ('%sgcc' % mlprefix) != pn and (not pn.startswith('gcc-cross-canadian')) and pn != "nativesdk-gcc":
  46. return
  47. def write_config(root, files, options, dirnames, osdirnames):
  48. for ml_conf_file in files:
  49. with open(root + '/' + ml_conf_file, 'r') as f:
  50. filelines = f.readlines()
  51. # recreate multilib configuration variables
  52. substs = [
  53. (r'^(\s*(MULTILIB_OPTIONS\s*=).*)$', r'\2 %s' % '/'.join(options)),
  54. (r'^(\s*MULTILIB_OPTIONS\s*\+=.*)$', ''),
  55. (r'^(\s*(MULTILIB_DIRNAMES\s*=).*)$', r'\2 %s' % ' '.join(dirnames)),
  56. (r'^(\s*MULTILIB_DIRNAMES\s*\+=.*)$', ''),
  57. (r'^(\s*(MULTILIB_OSDIRNAMES\s*=).*)$', r'\2 %s' % ' '.join(osdirnames)),
  58. (r'^(\s*MULTILIB_OSDIRNAMES\s*\+=.*)$', ''),
  59. ]
  60. for (i, line) in enumerate(filelines):
  61. for subst in substs:
  62. line = re.sub(subst[0], subst[1], line)
  63. filelines[i] = line
  64. with open(root + '/' + ml_conf_file, 'w') as f:
  65. f.write(''.join(filelines))
  66. def write_headers(root, files, libdir32, libdir64, libdirx32, libdirn32):
  67. def wrap_libdir(libdir):
  68. if libdir.find('SYSTEMLIBS_DIR') != -1:
  69. return '"%r"'
  70. else:
  71. return '"/%s/"' % libdir
  72. for ml_conf_file in files:
  73. fn = root + '/' + ml_conf_file
  74. if not os.path.exists(fn):
  75. continue
  76. with open(fn, 'r') as f:
  77. filelines = f.readlines()
  78. # replace lines like
  79. # #define GLIBC_DYNAMIC_LINKER32 SYSTEMLIBS_DIR "ld-linux.so.2"
  80. # by
  81. # #define GLIBC_DYNAMIC_LINKER32 "/lib/" "ld-linux.so.2"
  82. # this is needed to put the correct dynamic loader path in the generated binaries
  83. substs = [
  84. (r'^(#define\s*GLIBC_DYNAMIC_LINKER32\s*)(\S+)(\s*\".*\")$',
  85. r'\1' + wrap_libdir(libdir32) + r'\3'),
  86. (r'^(#define\s*GLIBC_DYNAMIC_LINKER64\s*)(\S+)(\s*\"\S+\")$',
  87. r'\1' + wrap_libdir(libdir64) + r'\3'),
  88. (r'^(#define\s*GLIBC_DYNAMIC_LINKER64\s*\"\S+\"\s*)(\S+)(\s*\"\S+\"\s*)(\S+)(\s*\".*\")$',
  89. r'\1' + wrap_libdir(libdir64) + r'\3' + wrap_libdir(libdir64) + r'\5'),
  90. (r'^(#define\s*GLIBC_DYNAMIC_LINKERX32\s*)(\S+)(\s*\".*\")$',
  91. r'\1' + wrap_libdir(libdirx32) + r'\3'),
  92. (r'^(#define\s*GLIBC_DYNAMIC_LINKERN32\s*)(\S+)(\s*\".*\")$',
  93. r'\1' + wrap_libdir(libdirn32) + r'\3'),
  94. (r'^(#define\s*UCLIBC_DYNAMIC_LINKER32\s*)(\S+)(\s*\".*\")$',
  95. r'\1' + wrap_libdir(libdir32) + r'\3'),
  96. (r'^(#define\s*UCLIBC_DYNAMIC_LINKER64\s*)(\S+)(\s*\".*\")$',
  97. r'\1' + wrap_libdir(libdir64) + r'\3'),
  98. (r'^(#define\s*UCLIBC_DYNAMIC_LINKERN32\s*)(\S+)(\s*\".*\")$',
  99. r'\1' + wrap_libdir(libdirn32) + r'\3'),
  100. (r'^(#define\s*UCLIBC_DYNAMIC_LINKER\b\s*)(\S+)(\s*\".*\")$',
  101. r'\1' + wrap_libdir(libdir32) + r'\3'),
  102. ]
  103. for (i, line) in enumerate(filelines):
  104. for subst in substs:
  105. line = re.sub(subst[0], subst[1], line)
  106. filelines[i] = line
  107. with open(root + '/' + ml_conf_file, 'w') as f:
  108. f.write(''.join(filelines))
  109. gcc_target_config_files = {
  110. 'x86_64' : ['gcc/config/i386/t-linux64'],
  111. 'i586' : ['gcc/config/i386/t-linux64'],
  112. 'i686' : ['gcc/config/i386/t-linux64'],
  113. 'mips' : ['gcc/config/mips/t-linux64'],
  114. 'mips64' : ['gcc/config/mips/t-linux64'],
  115. 'powerpc' : ['gcc/config/rs6000/t-linux64'],
  116. 'powerpc64' : ['gcc/config/rs6000/t-linux64'],
  117. 'aarch64' : ['gcc/config/aarch64/t-aarch64'],
  118. 'arm' : ['gcc/config/aarch64/t-aarch64'],
  119. }
  120. gcc_header_config_files = {
  121. 'x86_64' : ['gcc/config/i386/linux64.h'],
  122. 'i586' : ['gcc/config/i386/linux64.h'],
  123. 'i686' : ['gcc/config/i386/linux64.h'],
  124. 'mips' : ['gcc/config/mips/linux.h', 'gcc/config/mips/linux64.h'],
  125. 'mips64' : ['gcc/config/mips/linux.h', 'gcc/config/mips/linux64.h'],
  126. 'powerpc' : ['gcc/config/rs6000/linux64.h'],
  127. 'powerpc64' : ['gcc/config/rs6000/linux64.h'],
  128. 'aarch64' : ['gcc/config/aarch64/aarch64.h'],
  129. 'arm' : ['gcc/config/aarch64/aarch64.h'],
  130. }
  131. libdir32 = 'SYSTEMLIBS_DIR'
  132. libdir64 = 'SYSTEMLIBS_DIR'
  133. libdirx32 = 'SYSTEMLIBS_DIR'
  134. libdirn32 = 'SYSTEMLIBS_DIR'
  135. target_arch = (d.getVar('TARGET_ARCH_MULTILIB_ORIGINAL') if mlprefix
  136. else d.getVar('TARGET_ARCH'))
  137. if pn == "nativesdk-gcc":
  138. header_config_files = gcc_header_config_files[d.getVar("SDK_ARCH")]
  139. write_headers(builddir, header_config_files, libdir32, libdir64, libdirx32, libdirn32)
  140. return
  141. if target_arch not in gcc_target_config_files:
  142. bb.warn('gcc multilib setup is not supported for TARGET_ARCH=' + target_arch)
  143. return
  144. target_config_files = gcc_target_config_files[target_arch]
  145. header_config_files = gcc_header_config_files[target_arch]
  146. ml_list = ['DEFAULTTUNE_MULTILIB_ORIGINAL' if mlprefix else 'DEFAULTTUNE']
  147. mltunes = [('DEFAULTTUNE:virtclass-multilib-%s' % ml) for ml in multilibs]
  148. if mlprefix:
  149. mlindex = 0
  150. for ml in multilibs:
  151. if mlprefix == ml + '-':
  152. break
  153. mlindex += 1
  154. ml_list.extend(mltunes[:mlindex] + ['DEFAULTTUNE'] + mltunes[(mlindex + 1):])
  155. else:
  156. ml_list.extend(mltunes)
  157. options = []
  158. dirnames = []
  159. osdirnames = []
  160. optsets = []
  161. for ml in ml_list:
  162. tune = d.getVar(ml)
  163. if not tune:
  164. bb.warn("%s doesn't have a corresponding tune. Skipping..." % ml)
  165. continue
  166. tune_parameters = get_tune_parameters(tune, d)
  167. tune_baselib = tune_parameters['baselib']
  168. if not tune_baselib:
  169. bb.warn("Tune %s doesn't have a baselib set. Skipping..." % tune)
  170. continue
  171. if tune_baselib == 'lib64':
  172. libdir64 = tune_baselib
  173. elif tune_baselib == 'libx32':
  174. libdirx32 = tune_baselib
  175. elif tune_baselib == 'lib32':
  176. libdirn32 = tune_baselib
  177. elif tune_baselib == 'lib':
  178. libdir32 = tune_baselib
  179. else:
  180. bb.error('Unknown libdir (%s) of the tune : %s' % (tune_baselib, tune))
  181. # take out '-' mcpu='s and march='s from parameters
  182. opts = []
  183. whitelist = (d.getVar("MULTILIB_OPTION_WHITELIST") or "").split()
  184. for i in d.expand(tune_parameters['ccargs']).split():
  185. if i in whitelist:
  186. # Need to strip '-' from option
  187. opts.append(i[1:])
  188. options.append(" ".join(opts))
  189. if tune_baselib == 'lib':
  190. dirnames.append('32') # /lib => 32bit lib
  191. else:
  192. dirnames.append(tune_baselib.replace('lib', ''))
  193. osdirnames.append('../' + tune_baselib)
  194. write_config(builddir, target_config_files, options, dirnames, osdirnames)
  195. write_headers(builddir, header_config_files, libdir32, libdir64, libdirx32, libdirn32)
  196. }
  197. gcc_multilib_setup[cleandirs] = "${B}/gcc/config"
  198. gcc_multilib_setup[vardepsexclude] = "SDK_ARCH"
  199. EXTRACONFFUNCS += "gcc_multilib_setup"