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[CMake] Fix dependencies for generating gparams_register_modules.cpp.

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Previously CMake was not aware of which headers files the generation
of `gparams_register_modules.cpp` depended on. Consequently this could result
in broken incremental builds if

* Existing headers that declared module description/parameters change.
* New headers are added that declare module description/parameters.
* `.pyg` files that generate header files that declare module
  description/parameters change

Now the `z3_add_component()` CMake function has been modifed so that

* All header files that are generated from `.pyg` files are added as
dependencies and are scanned from module description/parameter
declarations. This implicit dependency of `gparams_register_modules.cpp`
depending on other generated header files seems unnecessary complex. We
should revisit this design decision once the Python/Makefile build
system is deprecated.

* The function now takes an optional `EXTRA_REGISTER_MODULE_HEADERS`
argument which allows the headers that declare module
description/paramters to be explicitly listed.

With this information CMake will now regenerate `gparams_register_modules.cpp`
correctly.

This required the `mk_gparams_register_modules_internal()` function to be
changed to take a list of header files rather than a list of component
source directories. The two consumers (CMake and Python/Makefile build
systems) of this function have been modified to work with this change.

This partially fixes #1030.
This commit is contained in:
Dan Liew 2017-06-21 22:56:31 +01:00
parent 229fd3dc3e
commit 6f48a145aa
8 changed files with 76 additions and 27 deletions
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9
scripts/mk_genfile_common.py
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@ -587,7 +587,7 @@ def mk_def_file_internal(defname, dll_name, export_header_files):
###############################################################################
# Functions for generating ``gparams_register_modules.cpp``
###############################################################################
def mk_gparams_register_modules_internal(component_src_dirs, path):
def mk_gparams_register_modules_internal(h_files_full_path, path):
"""
Generate a ``gparams_register_modules.cpp`` file in the directory ``path``.
Returns the path to the generated file.
@ -600,7 +600,7 @@ def mk_gparams_register_modules_internal(component_src_dirs, path):
This procedure is invoked by gparams::init()
"""
assert isinstance(component_src_dirs, list)
assert isinstance(h_files_full_path, list)
assert check_dir_exists(path)
cmds = []
mod_cmds = []
@ -612,11 +612,6 @@ def mk_gparams_register_modules_internal(component_src_dirs, path):
reg_pat = re.compile('[ \t]*REG_PARAMS\(\'([^\']*)\'\)')
reg_mod_pat = re.compile('[ \t]*REG_MODULE_PARAMS\(\'([^\']*)\', *\'([^\']*)\'\)')
reg_mod_descr_pat = re.compile('[ \t]*REG_MODULE_DESCRIPTION\(\'([^\']*)\', *\'([^\']*)\'\)')
h_files_full_path = []
for component_src_dir in component_src_dirs:
h_files = filter(lambda f: f.endswith('.h') or f.endswith('.hpp'), os.listdir(component_src_dir))
h_files = list(map(lambda p: os.path.join(component_src_dir, p), h_files))
h_files_full_path.extend(h_files)
for h_file in sorted_headers_by_component(h_files_full_path):
added_include = False
with open(h_file, 'r') as fin: