1 files changed, 143 insertions, 0 deletions
diff --git a/import-layers/yocto-poky/meta/recipes-core/uclibc/uclibc-config.inc b/import-layers/yocto-poky/meta/recipes-core/uclibc/uclibc-config.inc
new file mode 100644
index 000000000..ed7b52226
--- /dev/null
+++ b/import-layers/yocto-poky/meta/recipes-core/uclibc/uclibc-config.inc
@@ -0,0 +1,143 @@
+DEPENDS += "kern-tools-native"
+inherit cml1
+#
+# Set the ARCH environment variable for uClibc compilation.
+# Return value must match one of the architectures known to uClibc:
+# libc/sysdeps/*/*
+#
+
+valid_archs = "\
+alpha \
+arm \
+avr32 \
+bfin \
+c6x \
+cris \
+e1 \
+frv \
+h8300 \
+hppa \
+i386 \
+i960 \
+ia64 \
+m68k \
+microblaze \
+mips \
+nios \
+nios2 \
+powerpc \
+sh \
+sh64 \
+sparc \
+v850 \
+vax \
+x86_64 \
+xtensa \
+"
+def map_uclibc_arch(a, d):
+    """Return the uClibc architecture for the given TARGET_ARCH."""
+    import re
+
+    valid_archs = d.getVar('valid_archs', True).split()
+
+    if re.match('^(arm|sa110).*', a):
+        return 'arm'
+    elif re.match('^(i.86|athlon)$', a):
+        return 'i386'
+    elif re.match('^mips.*', a):
+        return 'mips'
+    elif re.match('^parisc.*', a):
+        return 'hppa'
+    elif re.match('^ppc.*', a):
+        return 'powerpc'
+    elif re.match('^s390.*', a):
+        return 's390'
+    elif re.match('^sh.*', a):
+        return 'sh'
+    elif re.match('^(sun|sparc).*', a):
+        return 'sparc'
+    elif re.match('^xtensa.*', a):
+        return 'xtensa'
+    elif a in valid_archs:
+        return a
+    else:
+        bb.error("cannot map '%s' to a uClibc architecture" % a)
+
+export UCLIBC_ARCH = "${@map_uclibc_arch(d.getVar('TARGET_ARCH', True), d)}"
+
+def map_uclibc_abi(o, d):
+    """Return the uClibc ABI for the given TARGET_OS."""
+    import re
+
+    arch = d.getVar('TARGET_ARCH', True)
+    if map_uclibc_arch(d.getVar('TARGET_ARCH', True), d) == "arm":
+        if re.match('.*eabi$', o):
+            return 'ARM_EABI'
+        else:
+            return 'ARM_OABI'
+    # FIXME: This is inaccurate! Handle o32, n32, n64
+    elif re.match('^mips.*64$', arch):
+        return 'MIPS_N64_ABI'
+    elif re.match('^mips.*', arch):
+        return 'MIPS_O32_ABI'
+    return ""
+
+export UCLIBC_ABI = "${@map_uclibc_abi(d.getVar('TARGET_OS', True), d)}"
+
+def map_uclibc_endian(a, d):
+    """Return the uClibc endianess for the given TARGET_ARCH."""
+    import re
+
+    # Always BE
+    if re.match('^(avr32|e1|frv|(parisc|hppa)|m68k|microblaze|powerpc.*|(sparc|sun).*)$', a):
+        return 'BIG'
+    # Possibly BE
+    elif re.match('^(((arm|sa110).*eb)|h8300.*eb|(parisc|hppa).*eb|mips|mips64|sh.*eb|xtensa.*eb)$', a):
+        return 'BIG'
+    return 'LITTLE'
+
+export UCLIBC_ENDIAN = "${@map_uclibc_endian(d.getVar('TARGET_ARCH', True), d)}"
+
+# internal helper
+def uclibc_cfg(feature, features, tokens, cnf, rem):
+    if type(tokens) == type(""):
+        tokens = [tokens]
+    rem.extend(['/^[# ]*' + token + '[ =]/d' for token in tokens])
+    if type(features) == type([]) and feature in features:
+        cnf.extend([token + '=y' for token in tokens])
+    else:
+        cnf.extend(['# ' + token + ' is not set' for token in tokens])
+
+# Map distro features to config settings
+def features_to_uclibc_settings(d):
+    cnf, rem = ([], [])
+    distro_features = d.getVar('DISTRO_FEATURES', True).split()
+    uclibc_cfg('ipv4',      distro_features, 'UCLIBC_HAS_IPV4', cnf, rem)
+    uclibc_cfg('ipv6',      distro_features, 'UCLIBC_HAS_IPV6', cnf, rem)
+    uclibc_cfg('largefile', distro_features, 'UCLIBC_HAS_LFS', cnf, rem)
+    uclibc_cfg('nls',       distro_features, 'UCLIBC_HAS_LOCALE', cnf, rem)
+    uclibc_cfg('thumb-interwork', distro_features,'USE_BX', cnf, rem)
+    uclibc_cfg('xattr',     distro_features, 'UCLIBC_HAS_XATTR', cnf, rem)
+    uclibc_cfg('ssp',       distro_features, 'UCLIBC_HAS_SSP', cnf, rem)
+    uclibc_cfg('ssp',       distro_features, 'UCLIBC_BUILD_SSP', cnf, rem)
+    uclibc_cfg('argp',       distro_features, 'UCLIBC_HAS_ARGP', cnf, rem)
+    uclibc_cfg('libc-posix-clang-wchar',  distro_features,'UCLIBC_HAS_WCHAR', cnf, rem)
+    return "\n".join(cnf), "\n".join(rem)
+# X, Y = ${@features_to_uclibc_settings(d)}
+# unfortunately doesn't seem to work with bitbake, workaround:
+def features_to_uclibc_conf(d):
+    cnf, rem = features_to_uclibc_settings(d)
+    return cnf
+def features_to_uclibc_del(d):
+    cnf, rem = features_to_uclibc_settings(d)
+    return rem
+
+# returns all the elements from the src uri that are .cfg files
+def find_cfgs(d):
+    sources=src_patches(d, True)
+    sources_list=[]
+    for s in sources:
+        if s.endswith('.cfg'):
+            sources_list.append(s)
+
+    return sources_list