[release/0.7 only] Fix check_c10_sync being out of sync (#12252)

pytorch/pytorch#157418 was picked to the PyTorch
2.8 branch and puts us out of sync with c10. This re-syncs. I did a mass
find/replace of torch/standalone with torch/headeronly; hopefully that
caught everything.
`.ci/scripts/check_c10_sync.sh` now reports success.

Author: swolchok

.ci/scripts/check_c10_sync.sh

@@ -12,4 +12,4 @@ pushd pytorch
 git checkout "$pytorch_pin"
 popd
 "$(dirname "${BASH_SOURCE[0]}")"/compare_dirs.sh runtime/core/portable_type/c10/c10 pytorch/c10
-"$(dirname "${BASH_SOURCE[0]}")"/compare_dirs.sh runtime/core/portable_type/c10/torch/standalone pytorch/torch/standalone
+"$(dirname "${BASH_SOURCE[0]}")"/compare_dirs.sh runtime/core/portable_type/c10/torch/headeronly pytorch/torch/headeronly

runtime/core/portable_type/c10/README.md

@@ -12,7 +12,7 @@ would cause all headers in that directory to be includeable with
 `runtime/core/portable_type/complex.h`, which would shadow the C99
 `complex.h` standard header.
 
-`torch/standalone` has been added as an extra "even more bottom of
+`torch/headeronly` has been added as an extra "even more bottom of
 stack" directory in PyTorch, so we have to add it to our sync
 here. The extra "stutter" c10 directory causing `c10/torch/standlone`
 is unfortunately awkward; perhaps we can rename the top-level

runtime/core/portable_type/c10/c10/macros/Export.h

@@ -5,7 +5,7 @@
 #include <c10/macros/cmake_macros.h>
 #endif // C10_USING_CUSTOM_GENERATED_MACROS
 
-#include <torch/standalone/macros/Export.h>
+#include <torch/headeronly/macros/Export.h>
 
 // This one is being used by libtorch.so
 #ifdef CAFFE2_BUILD_MAIN_LIB

runtime/core/portable_type/c10/c10/targets.bzl

@@ -125,7 +125,7 @@ def define_common_targets():
                 "@EXECUTORCH_CLIENTS",
             ],
             exported_deps = [
-                "//executorch/runtime/core/portable_type/c10/torch/standalone:torch_standalone_headers",
+                "//executorch/runtime/core/portable_type/c10/torch/headeronly:torch_headeronly",
             ] + select({
                 "DEFAULT": [],
                 # Half-inl.h depends on vec_half.h from ATen, but only when building for x86.

…rtable_type/c10/torch/standalone/TARGETS …rtable_type/c10/torch/headeronly/TARGETSruntime/core/portable_type/c10/torch/standalone/TARGETS renamed to runtime/core/portable_type/c10/torch/headeronly/TARGETS runtime/core/portable_type/c10/torch/standalone/TARGETS renamed to runtime/core/portable_type/c10/torch/headeronly/TARGETS

@@ -8,7 +8,7 @@ def define_common_targets():
     """
 
     runtime.cxx_library(
-        name = "torch_standalone_headers",
+        name = "torch_headeronly",
         exported_headers = glob(["**/*.h"]),
-        header_namespace = "torch/standalone",
+        header_namespace = "torch/headeronly",
     )

…ype/c10/torch/standalone/macros/Export.h …ype/c10/torch/headeronly/macros/Export.hruntime/core/portable_type/c10/torch/standalone/macros/Export.h renamed to runtime/core/portable_type/c10/torch/headeronly/macros/Export.h runtime/core/portable_type/c10/torch/standalone/macros/Export.h renamed to runtime/core/portable_type/c10/torch/headeronly/macros/Export.h

@@ -180,7 +180,7 @@ sed -i '' '1i\
 ' \
 "$HEADERS_ABSOLUTE_PATH/executorch/runtime/core/portable_type/c10/c10/macros/Macros.h" \
 "$HEADERS_ABSOLUTE_PATH/executorch/runtime/core/portable_type/c10/c10/macros/Export.h" \
-"$HEADERS_ABSOLUTE_PATH/executorch/runtime/core/portable_type/c10/torch/standalone/macros/Export.h"
+"$HEADERS_ABSOLUTE_PATH/executorch/runtime/core/portable_type/c10/torch/headeronly/macros/Export.h"
 
 cp -r $HEADERS_ABSOLUTE_PATH/executorch/runtime/core/portable_type/c10/c10 "$HEADERS_ABSOLUTE_PATH/"
 cp -r $HEADERS_ABSOLUTE_PATH/executorch/runtime/core/portable_type/c10/torch "$HEADERS_ABSOLUTE_PATH/"