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Merge pull request #2470 from whitequark/cxxrtl-create_at 

cxxrtl: allow customizing the root module path in the C API
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whitequark 2020-12-03 02:35:23 +00:00 committed by GitHub
parent 5a15307926 e89f6ae819
commit 13a270555b
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GPG Key ID: 4AEE18F83AFDEB23
2 changed files with 20 additions and 1 deletions
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15
backends/cxxrtl/cxxrtl_capi.cc
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@ -32,9 +32,22 @@ const cxxrtl::debug_items &cxxrtl_debug_items_from_handle(cxxrtl_handle handle)
}
cxxrtl_handle cxxrtl_create(cxxrtl_toplevel design) {
return cxxrtl_create_at(design, "");
}
cxxrtl_handle cxxrtl_create_at(cxxrtl_toplevel design, const char *root) {
std::string path = root;
if (!path.empty()) {
// module::debug_info() accepts either an empty path, or a path ending in space to simplify
// the logic in generated code. While this is sketchy at best to expose in the C++ API, this
// would be a lot worse in the C API, so don't expose it here.
assert(path.back() != ' ');
path += ' ';
}
cxxrtl_handle handle = new _cxxrtl_handle;
handle->module = std::move(design->module);
handle->module->debug_info(handle->objects);
handle->module->debug_info(handle->objects, path);
delete design;
return handle;
}

6
backends/cxxrtl/cxxrtl_capi.h
View File

@ -52,6 +52,12 @@ typedef struct _cxxrtl_handle *cxxrtl_handle;
// The `design` is consumed by this operation and cannot be used afterwards.
cxxrtl_handle cxxrtl_create(cxxrtl_toplevel design);
// Create a design handle at a given hierarchy position from a design toplevel.
//
// This operation is similar to `cxxrtl_create`, except the full hierarchical name of every object
// is prepended with `root`.
cxxrtl_handle cxxrtl_create_at(cxxrtl_toplevel design, const char *root);
// Release all resources used by a design and its handle.
void cxxrtl_destroy(cxxrtl_handle handle);