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- # 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-linux.h' % src_conf_dir,
- '%s/aarch64/aarch64-cores.def' % src_conf_dir,
- '%s/arm/linux-eabi.h' % 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_LINKER\b\s*)(\S+)(\s*\".*\")$',
- r'\1' + wrap_libdir(libdir32) + r'\3'),
- (r'^(#define\s*GLIBC_DYNAMIC_LINKERX32\s*)(\S+)(\s*\".*\")$',
- 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_LINKERX32\s*)(\S+)(\s*\".*\")$',
- r'\1' + wrap_libdir(libdirx32) + r'\3'),
- (r'^(#define\s*UCLIBC_DYNAMIC_LINKER\b\s*)(\S+)(\s*\".*\")$',
- r'\1' + wrap_libdir(libdir32) + r'\3'),
- (r'^(#define\s*MUSL_DYNAMIC_LINKER32\s*)(\S+)(\s*\".*\")$',
- r'\1' + wrap_libdir(libdir32) + r'\3'),
- (r'^(#define\s*MUSL_DYNAMIC_LINKER64\s*)(\S+)(\s*\".*\")$',
- r'\1' + wrap_libdir(libdir64) + r'\3'),
- (r'^(#define\s*MUSL_DYNAMIC_LINKERX32\s*)(\S+)(\s*\".*\")$',
- r'\1' + wrap_libdir(libdirx32) + r'\3'),
- (r'^(#define\s*MUSL_DYNAMIC_LINKER\b\s*)(\S+)(\s*\".*\")$',
- 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/linux.h', 'gcc/config/i386/linux.h', 'gcc/config/i386/linux64.h'],
- 'i586' : ['gcc/config/linux.h', 'gcc/config/i386/linux.h', 'gcc/config/i386/linux64.h'],
- 'i686' : ['gcc/config/linux.h', 'gcc/config/i386/linux.h', 'gcc/config/i386/linux64.h'],
- 'mips' : ['gcc/config/linux.h', 'gcc/config/mips/linux.h', 'gcc/config/mips/linux64.h'],
- 'mips64' : ['gcc/config/linux.h', 'gcc/config/mips/linux.h', 'gcc/config/mips/linux64.h'],
- 'powerpc' : ['gcc/config/linux.h', 'gcc/config/rs6000/linux64.h'],
- 'powerpc64' : ['gcc/config/linux.h', 'gcc/config/rs6000/linux64.h'],
- 'aarch64' : ['gcc/config/linux.h', 'gcc/config/aarch64/aarch64-linux.h', 'gcc/config/arm/linux-eabi.h'],
- 'arm' : ['gcc/config/linux.h', 'gcc/config/aarch64/aarch64-linux.h', 'gcc/config/arm/linux-eabi.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"
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