eglibc: always compile with optimization.

From: Jackie Huang <[email protected]>

* Test info:
1) MACHINE=qemux86-64/qemuppc/qemumips

$ bitbake core-image-sato 
$ bitbake eglibc

2) MACHINE=qemux86-64/qemuppc/qemumips
DEBUG_OPTIMIZATION = "-O0 -fno-omit-frame-pointer ${DEBUG_FLAGS} -pipe" DEBUG_BUILD = "1" or SELECTED_OPTIMIZATION = "${DEBUG_OPTIMIZATION}"

$ bitbake core-image-sato
$ bitbake eglibc

The following changes since commit 5e4714a454f9f742bf8af70dad2aa66ccb87e3fd:

lib/oe/classextend: Ensure we don't extend expressions more than once (2012-11-06 09:29:03 +0100)

are available in the git repository at:
git://git.pokylinux.org/poky-contrib jhuang0/d_eglibc_1114_1
http://git.pokylinux.org/cgit.cgi/poky-contrib/log/?h=jhuang0/d_eglibc_1114_1

Jackie Huang (1):
eglibc: always compile with optimization.

 meta/recipes-core/eglibc/eglibc_2.16.bb |   11 +++++++++++
 1 files changed, 11 insertions(+), 0 deletions(-)

1.7.4

From: Jackie Huang <[email protected]>

eglibc fails to compile if someone tries to compile an entire image as -O0:
error "glibc cannot be compiled without optimization"
so in this case, force to use -O2 and give a note about it.

[YOCTO #3405]

---
 meta/recipes-core/eglibc/eglibc_2.16.bb |   11 +++++++++++
 1 files changed, 11 insertions(+), 0 deletions(-)

index aa9256c..71bcc30 100644
@@ -87,6 +87,17 @@ EXTRA_OECONF = "--enable-kernel=${OLDEST_KERNEL} \
 
 EXTRA_OECONF += "${@get_libc_fpu_setting(bb, d)}"
 
+# eglibc can't be built without optimization, if someone tries to compile an
+# entire image as -O0, we override it with -O2 here and give a note about it.
+def get_optimization(d):
+    selected_optimization = d.getVar("SELECTED_OPTIMIZATION", True)
+    if base_contains("SELECTED_OPTIMIZATION", "-O0", "x", "", d) == "x":
+        bb.note("eglibc can't be built with -O0, -O2 will be used instead.")
+        return selected_optimization.replace("-O0", "-O2")
+    return selected_optimization
+
+SELECTED_OPTIMIZATION := "${@get_optimization(d)}"
+
 do_unpack_append() {
     bb.build.exec_func('do_move_ports', d)
 }

1.7.4