angstrom: add very experimental 'eglibc' ANGSTROM_MODE

* set ANGSTROM_MODE = 'eglibc' to use eglibc as your c library
* as the eglibc commit stated: 'only tested up to do_compile'

diff --git a/conf/distro/include/angstrom-eglibc.inc b/conf/distro/include/angstrom-eglibc.inc
new file mode 100644 (file)
index 0000000..333c8c8
--- /dev/null
+++ b/conf/distro/include/angstrom-eglibc.inc
@@ -0,0 +1,22 @@
+# eglibc:
+PREFERRED_PROVIDER_virtual/libiconv ?= "eglibc"
+PREFERRED_PROVIDER_virtual/libintl ?= "eglibc"
+PREFERRED_PROVIDER_virtual/libc ?= "eglibc"
+
+TARGET_OS = "linux${@['','-gnueabi'][bb.data.getVar('TARGET_ARCH',d,1) in ['arm', 'armeb'] and bb.data.getVar('MACHINE',d) not in ['collie','h3600', 'h3800', 'simpad', 'htcwallaby']]}"
+
+#mess with compiler flags to use -Os instead of -O2
+#Please see http://free-electrons.com/doc/embedded_linux_optimizations/img47.html for some more info
+# perl has some problems, see http://bugs.openembedded.org/show_bug.cgi?id=1616
+# [23:00] oxo: glibc (any version) on sparc does not like (repeat me) "-Os"
+
+FULL_OPTIMIZATION = "-fexpensive-optimizations -fomit-frame-pointer -frename-registers -Os"
+FULL_OPTIMIZATION_pn-perl = "-fexpensive-optimizations -fomit-frame-pointer -frename-registers -O1"
+FULL_OPTIMIZATION_sparc = "-fexpensive-optimizations -fomit-frame-pointer -frename-registers -O2"
+
+BUILD_OPTIMIZATION = "-Os"
+BUILD_OPTIMIZATION_pn-perl = "-O1"
+BUILD_OPTIMIZATION_sparc = "-O2"
+
+CXXFLAGS += "-fvisibility-inlines-hidden"
+

diff --git a/conf/distro/include/angstrom.inc b/conf/distro/include/angstrom.inc
index 3d4be08..5522a12 100644 (file)
--- a/conf/distro/include/angstrom.inc
+++ b/conf/distro/include/angstrom.inc
@@ -7,7 +7,7 @@ DISTRO_NAME = "Angstrom"
 
 TARGET_VENDOR = "-angstrom"
 
-# Can be "glibc" and "uclibc"
+# Can be "glibc", "eglibc" or "uclibc"
 ANGSTROM_MODE ?= "glibc"
 
 DEPLOY_DIR = "${TMPDIR}/deploy/${ANGSTROM_MODE}"