Initial Commit

extra_script.py

@@ -0,0 +1,61 @@
+Import("env")
+
+def gen_clangd(target, source, env):
+    _ = target
+    _ = source
+    from subprocess import run
+    import shlex
+    from pathlib import Path
+
+    SDCC = run(shlex.split("which sdcc"), capture_output=True).stdout.decode().strip()
+    # SDCC = '/home/fpasqua/.platformio/packages/toolchain-sdcc/bin/sdcc'
+    p = Path(SDCC).parent.parent  # toolchain root
+    SDCC_INCLUDE = p / 'share' / 'sdcc' / 'include'
+    # SDCC_INCLUDE = '/home/fpasqua/.platformio/packages/toolchain-sdcc/share/sdcc/include/'
+    GETDEFINEFLAGS = '-E -dM -mstm8 -x c /dev/null'
+    res = run([SDCC] + shlex.split(GETDEFINEFLAGS), capture_output=True)
+    res.check_returncode()
+    defines_raw = res.stdout.decode().strip().split('\n')
+    defines = [d.replace('#define ', '-D').replace(' ', '=') for d in defines_raw]
+    sdcc_defines = ", ".join(defines)
+
+    sdccext_defines = ", ".join(['-D__trap=', '-D__interrupt(x)='])
+
+    SUPPRESSED = [
+        "clang-diagnostic-main-return-type",
+        "clang-diagnostic-empty-body",
+        "pp_including_mainfile_in_preamble",
+    ]
+
+    with open('.clangd', 'w') as f:
+        f.writelines([
+            'CompileFlags:\n',
+            f'  Add: [-I{SDCC_INCLUDE}, {sdcc_defines}, {sdccext_defines}]\n'
+            '  Remove: [--opt-code-size, -mstm8]\n',
+            'Index:\n',
+            '  StandardLibrary: No\n',
+            'Diagnostics:\n',
+            '  Suppress:\n',
+            *[f'    - "{s}"\n' for s in SUPPRESSED],
+            '  UnusedIncludes: None\n',
+        ])
+    print("Project .clangd created")
+
+    o = run(shlex.split(f'ln -s -f {env["PROJECT_DIR"]}/.clangd .clangd'), cwd=p)
+    o.check_returncode()
+    print(f"Symlink to toolchain {p / '.clangd'} done.")
+
+# include toolchain paths
+env.Replace(COMPILATIONDB_INCLUDE_TOOLCHAIN=True)
+
+# custom .clangd initialization
+env.AddCustomTarget(
+    name='clangd',
+    dependencies=None,
+    actions=gen_clangd,
+    title='Gen .clangd',
+    description='Generate required files for clangd to work properly.',
+    always_build=True,
+)
+
+# TODO: add target to load the .clangd in the sdcc toolchain too