From: Prarit Bhargava <prarit@xxxxxxxxxx>
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@xxxxxxxxxx>
Signed-off-by: Prarit Bhargava <prarit@xxxxxxxxxx>
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
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