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build system: completely autodetect target cpu architecture.

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The existing ARCH Makefile variable is exported to the C code as well.
Additionally the version (arm-only for now) is detected as well. This
allows to for complete autodetection, i.e. that optimized ASM is picked up
if determined by preprocessor (CPU_ARM, etc).

Building a sim/raaa on a arm host will now automatically generate a arm
optmized build like we have for native targets.

Change-Id: I0b35393f8fb3ebd20beaa9e7371fa57bf3782107
This commit is contained in:
Thomas Martitz 2012-03-28 22:57:13 +02:00
parent c56950ea3a
commit 7b1a369cf7
10 changed files with 69 additions and 39 deletions
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2
apps/codecs/lib/libcodec.make
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@ -20,7 +20,7 @@ CODECLIBFLAGS = $(filter-out -O%,$(CODECFLAGS))
ifeq ($(MEMORYSIZE),2)
CODECLIBFLAGS += -Os
else ifeq ($(CPU),coldfire)
else ifeq ($(ARCH),arch_m68k)
CODECLIBFLAGS += -O2
else
CODECLIBFLAGS += -O1