Generalize module link validation

Perform validation for external modules, too.
This commit is contained in:
Will Miles 2025-05-24 23:14:22 -04:00
parent 75c95d88e2
commit 309c8d67f3
4 changed files with 96 additions and 99 deletions

View File

@ -39,10 +39,6 @@ usermods = env.GetProjectOption("custom_usermods","")
# Handle "all usermods" case
if usermods == '*':
usermods = [f.name for f in usermod_dir.iterdir() if f.is_dir() and f.joinpath('library.json').exists()]
# Update the environment, as many modules use scripts to detect their dependencies
env.GetProjectConfig().set("env:" + env['PIOENV'], 'custom_usermods', " ".join(usermods))
# Leave a note for the validation script
env.GetProjectConfig().set("env:" + env['PIOENV'], 'custom_all_usermods_enabled', "1")
else:
usermods = usermods.split()

View File

@ -0,0 +1,95 @@
import re
import sys
from pathlib import Path # For OS-agnostic path manipulation
from typing import Iterable
from click import secho
from SCons.Script import Action, Exit
from platformio import util
from platformio.builder.tools.piolib import LibBuilderBase
def is_wled_module(env, dep: LibBuilderBase) -> bool:
"""Returns true if the specified library is a wled module
"""
usermod_dir = Path(env["PROJECT_DIR"]).resolve() / "usermods"
return usermod_dir in Path(dep.src_dir).parents or str(dep.name).startswith("wled-")
def read_lines(p: Path):
""" Read in the contents of a file for analysis """
with p.open("r", encoding="utf-8", errors="ignore") as f:
return f.readlines()
def check_map_file_objects(map_file: list[str], dirs: Iterable[str]) -> set[str]:
""" Identify which dirs contributed to the final build
Returns the (sub)set of dirs that are found in the output ELF
"""
# Pattern to match symbols in object directories
# Join directories into alternation
usermod_dir_regex = "|".join([re.escape(dir) for dir in dirs])
# Matches nonzero address, any size, and any path in a matching directory
object_path_regex = re.compile(r"0x0*[1-9a-f][0-9a-f]*\s+0x[0-9a-f]+\s+\S+[/\\](" + usermod_dir_regex + r")[/\\]\S+\.o")
found = set()
for line in map_file:
matches = object_path_regex.findall(line)
for m in matches:
found.add(m)
return found
def count_usermod_objects(map_file: list[str]) -> int:
""" Returns the number of usermod objects in the usermod list """
# Count the number of entries in the usermods table section
return len([x for x in map_file if ".dtors.tbl.usermods.1" in x])
def validate_map_file(source, target, env):
""" Validate that all modules appear in the output build """
build_dir = Path(env.subst("$BUILD_DIR"))
map_file_path = build_dir / env.subst("${PROGNAME}.map")
if not map_file_path.exists():
secho(f"ERROR: Map file not found: {map_file_path}", fg="red", err=True)
Exit(1)
# Identify the WLED module source directories
module_lib_builders = [builder for builder in env.GetLibBuilders() if is_wled_module(env, builder)]
if env.GetProjectOption("custom_usermods","") == "*":
# All usermods build; filter non-platform-OK modules
module_lib_builders = [builder for builder in module_lib_builders if env.IsCompatibleLibBuilder(builder)]
else:
incompatible_builders = [builder for builder in module_lib_builders if not env.IsCompatibleLibBuilder(builder)]
if incompatible_builders:
secho(
f"ERROR: Modules {[b.name for b in incompatible_builders]} are not compatible with this platform!",
fg="red",
err=True)
Exit(1)
pass
# Extract the values we care about
modules = {Path(builder.build_dir).name: builder.name for builder in module_lib_builders}
secho(f"INFO: {len(modules)} libraries linked as WLED optional/user modules")
# Now parse the map file
map_file_contents = read_lines(map_file_path)
usermod_object_count = count_usermod_objects(map_file_contents)
secho(f"INFO: {usermod_object_count} usermod object entries")
confirmed_modules = check_map_file_objects(map_file_contents, modules.keys())
missing_modules = [modname for mdir, modname in modules.items() if mdir not in confirmed_modules]
if missing_modules:
secho(
f"ERROR: No object files from {missing_modules} found in linked output!",
fg="red",
err=True)
Exit(1)
return None
Import("env")
env.Append(LINKFLAGS=[env.subst("-Wl,--Map=${BUILD_DIR}/${PROGNAME}.map")])
env.AddPostAction("$BUILD_DIR/${PROGNAME}.elf", Action(validate_map_file, cmdstr='Checking linked optional modules (usermods) in map file'))

View File

@ -1,94 +0,0 @@
import re
import sys
from pathlib import Path # For OS-agnostic path manipulation
from click import secho
from SCons.Script import Action, Exit
from platformio import util
def read_lines(p: Path):
""" Read in the contents of a file for analysis """
with p.open("r", encoding="utf-8", errors="ignore") as f:
return f.readlines()
def check_map_file_objects(map_file: list[str], usermod_dirs: list[str]) -> set[str]:
""" Checks that an object file from each usermod_dir appears in the linked output
Returns the (sub)set of usermod_dirs that are found in the output ELF
"""
# Pattern to match symbols in object directories
# Join directories into alternation
usermod_dir_regex = "|".join([re.escape(dir) for dir in usermod_dirs])
# Matches nonzero address, any size, and any path in a matching directory
object_path_regex = re.compile(r"0x0*[1-9a-f][0-9a-f]*\s+0x[0-9a-f]+\s+\S+[/\\](" + usermod_dir_regex + r")[/\\]\S+\.o")
found = set()
for line in map_file:
matches = object_path_regex.findall(line)
for m in matches:
found.add(m)
return found
def count_registered_usermods(map_file: list[str]) -> int:
""" Returns the number of usermod objects in the usermod list """
# Count the number of entries in the usermods table section
return len([x for x in map_file if ".dtors.tbl.usermods.1" in x])
def validate_map_file(source, target, env):
""" Validate that all usermods appear in the output build """
build_dir = Path(env.subst("$BUILD_DIR"))
map_file_path = build_dir / env.subst("${PROGNAME}.map")
if not map_file_path.exists():
secho(f"ERROR: Map file not found: {map_file_path}", fg="red", err=True)
Exit(1)
# Load project settings
usermods = env.GetProjectOption("custom_usermods","").split()
libdeps = env.GetProjectOption("lib_deps", [])
lib_builders = env.GetLibBuilders()
secho(f"INFO: Expecting {len(usermods)} usermods: {', '.join(usermods)}")
# Map the usermods to libdeps; every usermod should have one
usermod_dirs = []
for mod in usermods:
modstr = f"{mod} = symlink://"
this_mod_libdeps = [libdep[len(modstr):] for libdep in libdeps if libdep.startswith(modstr)]
if not this_mod_libdeps:
secho(
f"ERROR: Usermod {mod} not found in build libdeps!",
fg="red",
err=True)
Exit(1)
# Save only the final folder name
usermod_dir = Path(this_mod_libdeps[0]).name
# Search lib_builders
this_mod_builders = [builder for builder in lib_builders if Path(builder.src_dir).name == usermod_dir]
if not this_mod_builders:
secho(
f"ERROR: Usermod {mod} not found in library builders!",
fg="red",
err=True)
Exit(1)
usermod_dirs.append(usermod_dir)
# Now parse the map file
map_file_contents = read_lines(map_file_path)
confirmed_usermods = check_map_file_objects(map_file_contents, usermod_dirs)
usermod_object_count = count_registered_usermods(map_file_contents)
secho(f"INFO: {len(usermod_dirs)}/{len(usermods)} libraries linked via custom_usermods, producing {usermod_object_count} usermod object entries")
missing_usermods = set(usermod_dirs).difference(confirmed_usermods)
if missing_usermods:
secho(
f"ERROR: No object files from {missing_usermods} found in linked output!",
fg="red",
err=True)
Exit(1)
return None
Import("env")
if not env.GetProjectOption("custom_all_usermods_enabled",""): # TODO: fix handling of platform mismatches
env.Append(LINKFLAGS=[env.subst("-Wl,--Map=${BUILD_DIR}/${PROGNAME}.map")])
env.AddPostAction("$BUILD_DIR/${PROGNAME}.elf", Action(validate_map_file, cmdstr='Checking linked usermods in map file...'))

View File

@ -116,7 +116,7 @@ extra_scripts =
pre:pio-scripts/user_config_copy.py
pre:pio-scripts/load_usermods.py
pre:pio-scripts/build_ui.py
post:pio-scripts/validate_usermods.py ;; double-check the build output usermods
post:pio-scripts/validate_modules.py ;; double-check the build output usermods
; post:pio-scripts/obj-dump.py ;; convenience script to create a disassembly dump of the firmware (hardcore debugging)
# ------------------------------------------------------------------------------