diff options
Diffstat (limited to 'meta/recipes-devtools/gcc/gcc-multilib-config.inc')
| -rw-r--r-- | meta/recipes-devtools/gcc/gcc-multilib-config.inc | 190 |
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 new file mode 100644 index 0000000..9403aab --- /dev/null +++ b/meta/recipes-devtools/gcc/gcc-multilib-config.inc @@ -0,0 +1,190 @@ +# 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 + +python gcc_multilib_setup() { + import re + import shutil + import glob + + srcdir = d.getVar('S', True) + builddir = d.getVar('B', True) + 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) + + # copy the target multilib config files to ${B} + for ml_glob in ml_globs: + for fn in glob.glob(ml_glob): + rel_path = os.path.relpath(fn, src_conf_dir) + parent_dir = os.path.dirname(rel_path) + bb.utils.mkdirhier('%s/%s' % (build_conf_dir, parent_dir)) + bb.copyfile(fn, '%s/%s' % (build_conf_dir, rel_path)) + + multilibs = (d.getVar('MULTILIB_VARIANTS', True) or '').split() + if not multilibs: + return + + mlprefix = d.getVar('MLPREFIX', True) + if ('%sgcc' % mlprefix) != d.getVar('PN', True): + return + + + def write_config(root, files, options, dirnames, osdirnames): + for ml_conf_file in files: + with open(root + '/' + ml_conf_file, 'r') as f: + filelines = f.readlines() + # recreate multilib configuration variables + substs = [ + (r'^(\s*(MULTILIB_OPTIONS\s*=).*)$', 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*\+=.*)$', ''), + ] + + for (i, line) in enumerate(filelines): + for subst in substs: + line = re.sub(subst[0], subst[1], line) + filelines[i] = line + + with open(root + '/' + ml_conf_file, 'w') as f: + f.write(''.join(filelines)) + + def write_headers(root, files, libdir32, libdir64, libdirx32, libdirn32): + def wrap_libdir(libdir): + if libdir.find('SYSTEMLIBS_DIR') != -1: + return libdir + else: + return '"/%s/"' % libdir + + for ml_conf_file in files: + with open(root + '/' + ml_conf_file, 'r') as f: + filelines = f.readlines() + + # replace lines like + # #define GLIBC_DYNAMIC_LINKER32 SYSTEMLIBS_DIR "ld-linux.so.2" + # by + # #define GLIBC_DYNAMIC_LINKER32 "/lib/" "ld-linux.so.2" + # this is needed to put the correct dynamic loader path in the generated binaries + substs = [ + (r'^(#define\s*GLIBC_DYNAMIC_LINKER32\s*)(\S+)(\s*\".*\")$', + r'\1' + wrap_libdir(libdir32) + r'\3'), + (r'^(#define\s*GLIBC_DYNAMIC_LINKER64\s*)(\S+)(\s*\".*\")$', + r'\1' + wrap_libdir(libdir64) + r'\3'), + (r'^(#define\s*GLIBC_DYNAMIC_LINKERX32\s*)(\S+)(\s*\".*\")$', + r'\1' + wrap_libdir(libdirx32) + r'\3'), + (r'^(#define\s*GLIBC_DYNAMIC_LINKERN32\s*)(\S+)(\s*\".*\")$', + r'\1' + wrap_libdir(libdirn32) + r'\3'), + ] + + 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'], + 'mips' : ['gcc/config/mips/t-linux64'], + 'powerpc' : ['gcc/config/rs6000/t-linux64'], + } + + gcc_header_config_files = { + 'x86_64' : ['gcc/config/i386/linux64.h'], + 'i586' : ['gcc/config/i386/linux64.h'], + 'mips' : ['gcc/config/mips/linux64.h'], + 'powerpc' : ['gcc/config/rs6000/linux64.h'], + } + + target_arch = (d.getVar('TARGET_ARCH_MULTILIB_ORIGINAL', True) if mlprefix + else d.getVar('TARGET_ARCH', True)) + if target_arch not in gcc_target_config_files: + bb.warn('gcc multilib setup is not supported for TARGET_ARCH=' + target_arch) + return + + libdir32 = 'SYSTEMLIBS_DIR' + libdir64 = 'SYSTEMLIBS_DIR' + libdirx32 = 'SYSTEMLIBS_DIR' + libdirn32 = 'SYSTEMLIBS_DIR' + + 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.startswith(ml): + break + mlindex += 1 + + ml_list.extend(mltunes[:mlindex] + ['DEFAULTTUNE'] + mltunes[(mlindex + 1):]) + else: + ml_list.extend(mltunes) + + options = [] + dirnames = [] + osdirnames = [] + + for ml in ml_list: + tune = d.getVar(ml, True) + 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 '-' and march='s from parameters + options.append(re.sub(r'march=[^ ]+ *', '', + re.sub(r' +\-+', ' ', + re.sub(r'^ *\-+', '', tune_parameters['ccargs'])))) + 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" + +EXTRACONFFUNCS += "gcc_multilib_setup" |
