forked from brl/citadel
236 lines
9.4 KiB
PHP
236 lines
9.4 KiB
PHP
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# following code modifies these definitions in the gcc config
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# MULTILIB_OPTIONS
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# MULTILIB_DIRNAMES
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# MULTILIB_OSDIRNAMES
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# GLIBC_DYNAMIC_LINKER32
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# GLIBC_DYNAMIC_LINKER64
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# GLIBC_DYNAMIC_LINKERX32
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# GLIBC_DYNAMIC_LINKERN32
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# For more information on use of these variables look at these files in the gcc source code
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# gcc/config/i386/t-linux64
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# gcc/config/mips/t-linux64
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# gcc/config/rs6000/t-linux64
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# gcc/config/i386/linux64.h
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# gcc/config/mips/linux64.h
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# gcc/config/rs6000/linux64.h
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MULTILIB_OPTION_WHITELIST ??= "-m32 -m64 -mx32 -mabi=n32 -mabi=32 -mabi=64"
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python gcc_multilib_setup() {
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import re
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import shutil
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import glob
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srcdir = d.getVar('S')
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builddir = d.getVar('B')
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src_conf_dir = '%s/gcc/config' % srcdir
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build_conf_dir = '%s/gcc/config' % builddir
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bb.utils.remove(build_conf_dir, True)
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ml_globs = ('%s/*/t-linux64' % src_conf_dir,
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'%s/*/linux64.h' % src_conf_dir,
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'%s/aarch64/t-aarch64' % src_conf_dir,
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'%s/aarch64/aarch64.h' % src_conf_dir,
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'%s/aarch64/aarch64-cores.def' % src_conf_dir,
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'%s/*/linux.h' % src_conf_dir,
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'%s/linux.h' % src_conf_dir)
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# copy the target multilib config files to ${B}
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for ml_glob in ml_globs:
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for fn in glob.glob(ml_glob):
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rel_path = os.path.relpath(fn, src_conf_dir)
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parent_dir = os.path.dirname(rel_path)
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bb.utils.mkdirhier('%s/%s' % (build_conf_dir, parent_dir))
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bb.utils.copyfile(fn, '%s/%s' % (build_conf_dir, rel_path))
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pn = d.getVar('PN')
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multilibs = (d.getVar('MULTILIB_VARIANTS') or '').split()
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if not multilibs and pn != "nativesdk-gcc":
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return
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mlprefix = d.getVar('MLPREFIX')
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if ('%sgcc' % mlprefix) != pn and (not pn.startswith('gcc-cross-canadian')) and pn != "nativesdk-gcc":
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return
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def write_config(root, files, options, dirnames, osdirnames):
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for ml_conf_file in files:
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with open(root + '/' + ml_conf_file, 'r') as f:
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filelines = f.readlines()
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# recreate multilib configuration variables
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substs = [
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(r'^(\s*(MULTILIB_OPTIONS\s*=).*)$', r'\2 %s' % '/'.join(options)),
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(r'^(\s*MULTILIB_OPTIONS\s*\+=.*)$', ''),
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(r'^(\s*(MULTILIB_DIRNAMES\s*=).*)$', r'\2 %s' % ' '.join(dirnames)),
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(r'^(\s*MULTILIB_DIRNAMES\s*\+=.*)$', ''),
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(r'^(\s*(MULTILIB_OSDIRNAMES\s*=).*)$', r'\2 %s' % ' '.join(osdirnames)),
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(r'^(\s*MULTILIB_OSDIRNAMES\s*\+=.*)$', ''),
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]
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for (i, line) in enumerate(filelines):
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for subst in substs:
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line = re.sub(subst[0], subst[1], line)
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filelines[i] = line
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with open(root + '/' + ml_conf_file, 'w') as f:
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f.write(''.join(filelines))
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def write_headers(root, files, libdir32, libdir64, libdirx32, libdirn32):
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def wrap_libdir(libdir):
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if libdir.find('SYSTEMLIBS_DIR') != -1:
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return '"%r"'
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else:
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return '"/%s/"' % libdir
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for ml_conf_file in files:
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fn = root + '/' + ml_conf_file
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if not os.path.exists(fn):
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continue
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with open(fn, 'r') as f:
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filelines = f.readlines()
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# replace lines like
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# #define GLIBC_DYNAMIC_LINKER32 SYSTEMLIBS_DIR "ld-linux.so.2"
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# by
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# #define GLIBC_DYNAMIC_LINKER32 "/lib/" "ld-linux.so.2"
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# this is needed to put the correct dynamic loader path in the generated binaries
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substs = [
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(r'^(#define\s*GLIBC_DYNAMIC_LINKER32\s*)(\S+)(\s*\".*\")$',
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r'\1' + wrap_libdir(libdir32) + r'\3'),
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(r'^(#define\s*GLIBC_DYNAMIC_LINKER64\s*)(\S+)(\s*\"\S+\")$',
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r'\1' + wrap_libdir(libdir64) + r'\3'),
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(r'^(#define\s*GLIBC_DYNAMIC_LINKER64\s*\"\S+\"\s*)(\S+)(\s*\"\S+\"\s*)(\S+)(\s*\".*\")$',
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r'\1' + wrap_libdir(libdir64) + r'\3' + wrap_libdir(libdir64) + r'\5'),
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(r'^(#define\s*GLIBC_DYNAMIC_LINKERX32\s*)(\S+)(\s*\".*\")$',
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r'\1' + wrap_libdir(libdirx32) + r'\3'),
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(r'^(#define\s*GLIBC_DYNAMIC_LINKERN32\s*)(\S+)(\s*\".*\")$',
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r'\1' + wrap_libdir(libdirn32) + r'\3'),
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(r'^(#define\s*UCLIBC_DYNAMIC_LINKER32\s*)(\S+)(\s*\".*\")$',
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r'\1' + wrap_libdir(libdir32) + r'\3'),
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(r'^(#define\s*UCLIBC_DYNAMIC_LINKER64\s*)(\S+)(\s*\".*\")$',
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r'\1' + wrap_libdir(libdir64) + r'\3'),
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(r'^(#define\s*UCLIBC_DYNAMIC_LINKERN32\s*)(\S+)(\s*\".*\")$',
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r'\1' + wrap_libdir(libdirn32) + r'\3'),
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(r'^(#define\s*UCLIBC_DYNAMIC_LINKER\b\s*)(\S+)(\s*\".*\")$',
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r'\1' + wrap_libdir(libdir32) + r'\3'),
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]
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for (i, line) in enumerate(filelines):
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for subst in substs:
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line = re.sub(subst[0], subst[1], line)
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filelines[i] = line
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with open(root + '/' + ml_conf_file, 'w') as f:
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f.write(''.join(filelines))
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gcc_target_config_files = {
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'x86_64' : ['gcc/config/i386/t-linux64'],
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'i586' : ['gcc/config/i386/t-linux64'],
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'i686' : ['gcc/config/i386/t-linux64'],
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'mips' : ['gcc/config/mips/t-linux64'],
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'mips64' : ['gcc/config/mips/t-linux64'],
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'powerpc' : ['gcc/config/rs6000/t-linux64'],
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'powerpc64' : ['gcc/config/rs6000/t-linux64'],
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'aarch64' : ['gcc/config/aarch64/t-aarch64'],
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'arm' : ['gcc/config/aarch64/t-aarch64'],
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}
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gcc_header_config_files = {
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'x86_64' : ['gcc/config/i386/linux64.h'],
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'i586' : ['gcc/config/i386/linux64.h'],
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'i686' : ['gcc/config/i386/linux64.h'],
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'mips' : ['gcc/config/mips/linux.h', 'gcc/config/mips/linux64.h'],
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'mips64' : ['gcc/config/mips/linux.h', 'gcc/config/mips/linux64.h'],
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'powerpc' : ['gcc/config/rs6000/linux64.h'],
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'powerpc64' : ['gcc/config/rs6000/linux64.h'],
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'aarch64' : ['gcc/config/aarch64/aarch64.h'],
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'arm' : ['gcc/config/aarch64/aarch64.h'],
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}
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libdir32 = 'SYSTEMLIBS_DIR'
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libdir64 = 'SYSTEMLIBS_DIR'
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libdirx32 = 'SYSTEMLIBS_DIR'
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libdirn32 = 'SYSTEMLIBS_DIR'
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target_arch = (d.getVar('TARGET_ARCH_MULTILIB_ORIGINAL') if mlprefix
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else d.getVar('TARGET_ARCH'))
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if pn == "nativesdk-gcc":
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header_config_files = gcc_header_config_files[d.getVar("SDK_ARCH")]
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write_headers(builddir, header_config_files, libdir32, libdir64, libdirx32, libdirn32)
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return
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if target_arch not in gcc_target_config_files:
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bb.warn('gcc multilib setup is not supported for TARGET_ARCH=' + target_arch)
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return
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target_config_files = gcc_target_config_files[target_arch]
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header_config_files = gcc_header_config_files[target_arch]
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ml_list = ['DEFAULTTUNE_MULTILIB_ORIGINAL' if mlprefix else 'DEFAULTTUNE']
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mltunes = [('DEFAULTTUNE_virtclass-multilib-%s' % ml) for ml in multilibs]
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if mlprefix:
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mlindex = 0
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for ml in multilibs:
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if mlprefix == ml + '-':
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break
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mlindex += 1
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ml_list.extend(mltunes[:mlindex] + ['DEFAULTTUNE'] + mltunes[(mlindex + 1):])
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else:
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ml_list.extend(mltunes)
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options = []
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dirnames = []
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osdirnames = []
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optsets = []
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for ml in ml_list:
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tune = d.getVar(ml)
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if not tune:
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bb.warn("%s doesn't have a corresponding tune. Skipping..." % ml)
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continue
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tune_parameters = get_tune_parameters(tune, d)
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tune_baselib = tune_parameters['baselib']
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if not tune_baselib:
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bb.warn("Tune %s doesn't have a baselib set. Skipping..." % tune)
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continue
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if tune_baselib == 'lib64':
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libdir64 = tune_baselib
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elif tune_baselib == 'libx32':
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libdirx32 = tune_baselib
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elif tune_baselib == 'lib32':
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libdirn32 = tune_baselib
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elif tune_baselib == 'lib':
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libdir32 = tune_baselib
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else:
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bb.error('Unknown libdir (%s) of the tune : %s' % (tune_baselib, tune))
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# take out '-' mcpu='s and march='s from parameters
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opts = []
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whitelist = (d.getVar("MULTILIB_OPTION_WHITELIST") or "").split()
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for i in d.expand(tune_parameters['ccargs']).split():
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if i in whitelist:
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# Need to strip '-' from option
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opts.append(i[1:])
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options.append(" ".join(opts))
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if tune_baselib == 'lib':
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dirnames.append('32') # /lib => 32bit lib
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else:
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dirnames.append(tune_baselib.replace('lib', ''))
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osdirnames.append('../' + tune_baselib)
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write_config(builddir, target_config_files, options, dirnames, osdirnames)
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write_headers(builddir, header_config_files, libdir32, libdir64, libdirx32, libdirn32)
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}
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gcc_multilib_setup[cleandirs] = "${B}/gcc/config"
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gcc_multilib_setup[vardepsexclude] = "SDK_ARCH"
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EXTRACONFFUNCS += "gcc_multilib_setup"
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