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Ignore 'extern "C++"' section in a version script

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This allows creating extern "C++" {} sections in version script in order
to export some of private platform symbols from NDK libraries.

Example for context: 3a11413a25/libs/nativewindow/include/private/android/AHardwareBufferHelpers.h

Bug: http://b/69603741
Test: make
Change-Id: I2f9e6678c0a6cd90113543e890786876d4c3e992
This commit is contained in:
dimitry 2017-11-21 17:47:33 +01:00
parent cf31fcfc71
commit 2be7fa991c
1 changed files with 14 additions and 8 deletions
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22
cc/gen_stub_libs.py
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@ -244,6 +244,7 @@ class SymbolFileParser(object):
tags = decode_api_level_tags(tags, self.api_map) tags = decode_api_level_tags(tags, self.api_map)
symbols = [] symbols = []
global_scope = True global_scope = True
cpp_symbols = False
while self.next_line() != '': while self.next_line() != '':
if '}' in self.current_line: if '}' in self.current_line:
# Line is something like '} BASE; # tags'. Both base and tags # Line is something like '} BASE; # tags'. Both base and tags
@ -252,12 +253,17 @@ class SymbolFileParser(object):
base = base.partition('#')[0].strip() base = base.partition('#')[0].strip()
if not base.endswith(';'): if not base.endswith(';'):
raise ParseError( raise ParseError(
'Unterminated version block (expected ;).') 'Unterminated version/export "C++" block (expected ;).')
base = base.rstrip(';').rstrip() if cpp_symbols:
if base == '': cpp_symbols = False
base = None else:
return Version(name, base, tags, symbols) base = base.rstrip(';').rstrip()
elif ':' in self.current_line: if base == '':
base = None
return Version(name, base, tags, symbols)
elif 'extern "C++" {' in self.current_line:
cpp_symbols = True
elif not cpp_symbols and ':' in self.current_line:
visibility = self.current_line.split(':')[0].strip() visibility = self.current_line.split(':')[0].strip()
if visibility == 'local': if visibility == 'local':
global_scope = False global_scope = False
@ -265,10 +271,10 @@ class SymbolFileParser(object):
global_scope = True global_scope = True
else: else:
raise ParseError('Unknown visiblity label: ' + visibility) raise ParseError('Unknown visiblity label: ' + visibility)
elif global_scope: elif global_scope and not cpp_symbols:
symbols.append(self.parse_symbol()) symbols.append(self.parse_symbol())
else: else:
# We're in a hidden scope. Ignore everything. # We're in a hidden scope or in 'extern "C++"' block. Ignore everything.
pass pass
raise ParseError('Unexpected EOF in version block.') raise ParseError('Unexpected EOF in version block.')