r243721 - in /trunk: gcc/ChangeLog gcc/input.c ...
dmalcolm@gcc.gnu.org
dmalcolm@gcc.gnu.org
Thu Dec 15 18:05:00 GMT 2016
Author: dmalcolm
Date: Thu Dec 15 18:05:05 2016
New Revision: 243721
URL: https://gcc.gnu.org/viewcvs?rev=243721&root=gcc&view=rev
Log:
Fix use-after-free lexing unterminated raw strings (PR preprocessor/78811)
gcc/ChangeLog:
PR preprocessor/78680
PR preprocessor/78811
* input.c (struct selftest::lexer_test): Add field
m_implicitly_expect_EOF.
(selftest::lexer_error_sink): New class.
(selftest::lexer_error_sink::s_singleton): New global.
(selftest::lexer_test::lexer_test): Initialize new field
"m_implicitly_expect_EOF".
(selftest::lexer_test::~lexer_test): Conditionalize the
check for the EOF token on the new field.
(selftest::test_lexer_string_locations_raw_string_unterminated):
New function.
(selftest::input_c_tests): Call the new test.
libcpp/ChangeLog:
PR preprocessor/78680
PR preprocessor/78811
* lex.c (_cpp_lex_direct): Only determine the end-location of
the token and build a range for non-reserved start locations.
Do not do it for EOF tokens.
Modified:
trunk/gcc/ChangeLog
trunk/gcc/input.c
trunk/libcpp/ChangeLog
trunk/libcpp/lex.c
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