| The read_wcid isn't used in our build of Tensorflow, and the default |
| implementation from the `cpuinfo` dependency doesn't build on ARM devices. |
| |
| Since it is not used, we patch out the offending line and return 0 to get |
| around the compilation error. |
| |
| diff --git a/third_party/cpuinfo/cpuinfo.patch b/third_party/cpuinfo/cpuinfo.patch |
| new file mode 100644 |
| index 00000000..bbd619a4 |
| --- /dev/null |
| +++ b/third_party/cpuinfo/cpuinfo.patch |
| @@ -0,0 +1,14 @@ |
| +diff --git a/src/arm/linux/cp.h b/src/arm/linux/cp.h |
| +index 63940ec..9403a65 100644 |
| +--- a/src/arm/linux/cp.h |
| ++++ b/src/arm/linux/cp.h |
| +@@ -37,8 +37,6 @@ |
| + #endif |
| + |
| + static inline uint32_t read_wcid(void) { |
| +- uint32_t wcid; |
| +- __asm__ __volatile__("MRC p1, 0, %[wcid], c0, c0" : [wcid] "=r" (wcid)); |
| +- return wcid; |
| ++ return 0; |
| + } |
| + #endif |
| diff --git a/third_party/cpuinfo/workspace.bzl b/third_party/cpuinfo/workspace.bzl |
| index dfccc34f..4895fb07 100644 |
| --- a/third_party/cpuinfo/workspace.bzl |
| +++ b/third_party/cpuinfo/workspace.bzl |
| @@ -12,4 +12,5 @@ def repo(): |
| "https://github.com/pytorch/cpuinfo/archive/5916273f79a21551890fd3d56fc5375a78d1598d.zip", |
| ], |
| build_file = "//third_party/cpuinfo:BUILD.bazel", |
| + patch_file = str(Label("//third_party/cpuinfo:cpuinfo.patch")), |
| ) |
