Add basic support for the Blackfin architecture

For uClibc, the name of the Blackfin architecture is 'bfin'. Actually,
the naming of the architecture is quite messy: for toolchain tuples
and uClibc, it's bfin, but for the kernel, it's blackfin. We've
arbitraly choosen to name it "blackfin" in Crosstool-NG.

Add Blackfin-related uClibc patch to fix a build failure related to
fork() being used in unistd/daemon.c.

Yann E. MORIN:
Apply the patch to the kernel/linux build script to use 'linux'
in the noMMU tuples. See:
  http://sourceware.org/ml/crossgcc/2010-04/msg00010.html

1 files changed, 14 insertions, 0 deletions

diff --git a/scripts/build/arch/blackfin.sh b/scripts/build/arch/blackfin.sh
new file mode 100644
index 0000000..e707617
--- /dev/null
+++ b/scripts/build/arch/blackfin.sh
@@ -0,0 +1,14 @@
+# Compute Blackfin-specific values
+
+CT_DoArchTupleValues() {
+    # The architecture part of the tuple:
+    CT_TARGET_ARCH="bfin"
+
+    # gcc ./configure flags
+    CT_ARCH_WITH_ARCH=
+    CT_ARCH_WITH_ABI=
+    CT_ARCH_WITH_CPU=
+    CT_ARCH_WITH_TUNE=
+    CT_ARCH_WITH_FPU=
+    CT_ARCH_WITH_FLOAT=
+}