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modules: generates per-target modinfo

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This patch changes the way modinfo is generated and built. Instead of
one modinfo.c it generates one modinfo-<target>-softmmu.c per target. It
aims a fine-tune control of modules by configuring Kconfig.

Signed-off-by: Jose R. Ziviani <jziviani@suse.de>
Signed-off-by: Dario Faggioli <dfaggioli@suse.com>
Message-Id: <165369003038.5857.13084289285185196779.stgit@work>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Jose R. Ziviani 2022-05-28 00:20:35 +02:00 committed by Paolo Bonzini
parent 24ce7aa77d
commit 05d6814c3e
2 changed files with 52 additions and 22 deletions
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25
meson.build
View file

@ -3175,14 +3175,23 @@ foreach d, list : target_modules
endforeach
if enable_modules
modinfo_src = custom_target('modinfo.c',
output: 'modinfo.c',
input: modinfo_files,
command: [modinfo_generate, '@INPUT@'],
capture: true)
modinfo_lib = static_library('modinfo', modinfo_src)
modinfo_dep = declare_dependency(link_whole: modinfo_lib)
softmmu_ss.add(modinfo_dep)
foreach target : target_dirs
if target.endswith('-softmmu')
config_target = config_target_mak[target]
config_devices_mak = target + '-config-devices.mak'
modinfo_src = custom_target('modinfo-' + target + '.c',
output: 'modinfo-' + target + '.c',
input: modinfo_files,
command: [modinfo_generate, '--devices', config_devices_mak, '@INPUT@'],
capture: true)
modinfo_lib = static_library('modinfo-' + target + '.c', modinfo_src)
modinfo_dep = declare_dependency(link_with: modinfo_lib)
arch = config_target['TARGET_NAME'] == 'sparc64' ? 'sparc64' : config_target['TARGET_BASE_ARCH']
hw_arch[arch].add(modinfo_dep)
endif
endforeach
endif
nm = find_program('nm')

49
scripts/modinfo-generate.py
View file

@ -32,7 +32,7 @@ def parse_line(line):
continue
return (kind, data)
def generate(name, lines):
def generate(name, lines, enabled):
arch = ""
objs = []
deps = []
@ -49,7 +49,13 @@ def generate(name, lines):
elif kind == 'arch':
arch = data;
elif kind == 'kconfig':
pass # ignore
# don't add a module which dependency is not enabled
# in kconfig
if data.strip() not in enabled:
print(" /* module {} isn't enabled in Kconfig. */"
.format(data.strip()))
print("/* },{ */")
return None
else:
print("unknown:", kind)
exit(1)
@ -60,8 +66,8 @@ def generate(name, lines):
print_array("objs", objs)
print_array("deps", deps)
print_array("opts", opts)
print("},{");
return deps
print("},{")
return {dep.strip('" ') for dep in deps}
def print_pre():
print("/* generated by scripts/modinfo-generate.py */")
@ -74,23 +80,38 @@ def print_post():
print("}};")
def main(args):
deps = {}
if len(args) < 3 or args[0] != '--devices':
print('Expected: modinfo-generate.py --devices '
'config-device.mak [modinfo files]', file=sys.stderr)
exit(1)
# get all devices enabled in kconfig, from *-config-device.mak
enabled = set()
with open(args[1]) as file:
for line in file.readlines():
config = line.split('=')
if config[1].rstrip() == 'y':
enabled.add(config[0][7:]) # remove CONFIG_
deps = set()
modules = set()
print_pre()
for modinfo in args:
for modinfo in args[2:]:
with open(modinfo) as f:
lines = f.readlines()
print(" /* %s */" % modinfo)
(basename, ext) = os.path.splitext(modinfo)
deps[basename] = generate(basename, lines)
(basename, _) = os.path.splitext(modinfo)
moddeps = generate(basename, lines, enabled)
if moddeps is not None:
modules.add(basename)
deps.update(moddeps)
print_post()
flattened_deps = {flat.strip('" ') for dep in deps.values() for flat in dep}
error = False
for dep in flattened_deps:
if dep not in deps.keys():
print("Dependency {} cannot be satisfied".format(dep),
file=sys.stderr)
error = True
for dep in deps.difference(modules):
print("Dependency {} cannot be satisfied".format(dep),
file=sys.stderr)
error = True
if error:
exit(1)