[OS-BUILD PATCHv3 11/19] kabi: add support for symbol namespaces into check-kabi

From: Prarit Bhargava <prarit(a)redhat.com&gt; kabi: add support for symbol namespaces into check-kabi Symbol namespaces are emitted to Module.symvers as well as any Module.kabi files that check-kabi consumes. Correctly parse symbol namespaces, if present. Warn on symbol namespace changes, as they constitute an ABI breakage. Signed-off-by: Čestmír Kalina <ckalina(a)redhat.com&gt; Signed-off-by: Prarit Bhargava <prarit(a)redhat.com&gt; diff --git a/redhat/kabi/check-kabi b/redhat/kabi/check-kabi index blahblah..blahblah 100755 --- a/redhat/kabi/check-kabi +++ b/redhat/kabi/check-kabi @@ -41,7 +41,8 @@ def load_symvers(symvers, filename): break if in_line == "\n": continue - checksum, symbol, directory, type = in_line.split() + checksum, symbol, directory, type, *ns = in_line.split() + ns = ns[0] if ns else None symvers[symbol] = in_line[0:-1] @@ -57,7 +58,8 @@ def load_kabi(kabi, filename): break if in_line == "\n": continue - checksum, symbol, directory, type = in_line.split() + checksum, symbol, directory, type, *ns = in_line.split() + ns = ns[0] if ns else None kabi[symbol] = in_line[0:-1] @@ -69,11 +71,14 @@ def check_kabi(symvers, kabi): warn = 0 changed_symbols = [] moved_symbols = [] + ns_symbols = [] for symbol in kabi: - abi_hash, abi_sym, abi_dir, abi_type = kabi[symbol].split() + abi_hash, abi_sym, abi_dir, abi_type, *abi_ns = kabi[symbol].split() + abi_ns = abi_ns[0] if abi_ns else None if symbol in symvers: - sym_hash, sym_sym, sym_dir, sym_type = symvers[symbol].split() + sym_hash, sym_sym, sym_dir, sym_type, *sym_ns = symvers[symbol].split() + sym_ns = sym_ns[0] if sym_ns else None if abi_hash != sym_hash: fail = 1 changed_symbols.append(symbol) @@ -81,6 +86,10 @@ def check_kabi(symvers, kabi): if abi_dir != sym_dir: warn = 1 moved_symbols.append(symbol) + + if abi_ns != sym_ns: + warn = 1 + ns_symbols.append(symbol) else: fail = 1 changed_symbols.append(symbol) @@ -96,13 +105,21 @@ def check_kabi(symvers, kabi): if warn: print("*** WARNING - ABI SYMBOLS MOVED ***") - print("") - print("The following symbols moved (typically caused by moving a symbol from being") - print("provided by the kernel vmlinux out to a loadable module):") - print("") - for symbol in moved_symbols: - print(symbol) - print("") + if moved_symbols: + print("") + print("The following symbols moved (typically caused by moving a symbol from being") + print("provided by the kernel vmlinux out to a loadable module):") + print("") + for symbol in moved_symbols: + print(symbol) + print("") + if ns_symbols: + print("") + print("The following symbols changed symbol namespaces:") + print("") + for symbol in ns_symbols: + print(symbol) + print("") """Halt the build, if we got errors and/or warnings. In either case, double-checkig is required to avoid introducing / concealing -- https://gitlab.com/cki-project/kernel-ark/-/merge_requests/2021