Add arm64 support
This patch adds `--config=arm64` and `--cpu=arm64` flags for users to
compile for the 64-bit version of the Raspberry Pi.
The existing 32-bit ARM build should still work. This patch only adds
additional 64-bit capabilities. Future patches can remove 32-bit
support.
Eigen needed some tweaks because we have `LDBL_MANT_DIG` of 113 on
arm64. None of the code paths that used the parameters `U` and `V`
actually gets compiled in. Adding `[[maybe_unused]]` fixed the error.
Signed-off-by: Philipp Schrader <philipp.schrader@gmail.com>
Change-Id: Ibf919b2964fe971769449a1c556c13e3bf1d48e9
diff --git a/y2020/vision/sift/fast_gaussian_runner.py b/y2020/vision/sift/fast_gaussian_runner.py
index cc45208..d812f3f 100755
--- a/y2020/vision/sift/fast_gaussian_runner.py
+++ b/y2020/vision/sift/fast_gaussian_runner.py
@@ -16,6 +16,7 @@
target_cpu = sys.argv[3]
target = {
+ 'aarch64': 'arm-64-linux-no_asserts',
'armv7': 'arm-32-linux-no_asserts',
'k8': 'x86-64-linux-no_asserts',
}[target_cpu]