diff options
author | David Malcolm <dmalcolm@redhat.com> | 2016-08-08 22:50:47 +0000 |
---|---|---|
committer | David Malcolm <dmalcolm@gcc.gnu.org> | 2016-08-08 22:50:47 +0000 |
commit | 895aa8e11319635104e6fa0dc1468fd6aec7b5b1 (patch) | |
tree | d1295b1b4e0a648f2f906e00b8e96ce05e031c74 /libcc1 | |
parent | b123572d819ffc4d3c250c7cbeb547fc351d4cf7 (diff) | |
download | gcc-895aa8e11319635104e6fa0dc1468fd6aec7b5b1.zip gcc-895aa8e11319635104e6fa0dc1468fd6aec7b5b1.tar.gz gcc-895aa8e11319635104e6fa0dc1468fd6aec7b5b1.tar.bz2 |
c-format.c: suggest the correct format string to use (PR c/64955)
This adds fix-it hints to c-format.c so that it can (sometimes) suggest
the format string the user should have used.
The patch adds selftests for the new code in c-format.c. These
selftests are thus lang-specific. This is the first time we've had
lang-specific selftests, and hence the patch also adds a langhook for
running them. (Note that currently the Makefile only invokes the
selftests for cc1).
gcc/c-family/ChangeLog:
PR c/64955
* c-common.h (selftest::c_format_c_tests): New declaration.
(selftest::run_c_tests): New declaration.
* c-format.c: Include "selftest.h.
(format_warning_va): Add param "corrected_substring" and use
it to add a replacement fix-it hint.
(format_warning_at_substring): Likewise.
(format_warning_at_char): Update for new param of
format_warning_va.
(argument_parser::check_argument_type): Pass "fki" to
check_format_types.
(check_format_types): Add param "fki" and pass it to
format_type_warning.
(deref_n_times): New function.
(get_modifier_for_format_len): New function.
(selftest::test_get_modifier_for_format_len): New function.
(get_format_for_type): New function.
(format_type_warning): Add param "fki" and use it to attempt
to provide hints for argument types when calling
format_warning_at_substring.
(selftest::get_info): New function.
(selftest::assert_format_for_type_streq): New function.
(ASSERT_FORMAT_FOR_TYPE_STREQ): New macro.
(selftest::test_get_format_for_type_printf): New function.
(selftest::test_get_format_for_type_scanf): New function.
(selftest::c_format_c_tests): New function.
gcc/c/ChangeLog:
PR c/64955
* c-lang.c (LANG_HOOKS_RUN_LANG_SELFTESTS): If CHECKING_P, wire
this up to selftest::run_c_tests.
(selftest::run_c_tests): New function.
gcc/ChangeLog:
PR c/64955
* langhooks-def.h (LANG_HOOKS_RUN_LANG_SELFTESTS): New default
do-nothing langhook.
(LANG_HOOKS_INITIALIZER): Add LANG_HOOKS_RUN_LANG_SELFTESTS.
* langhooks.h (struct lang_hooks): Add run_lang_selftests.
* selftest-run-tests.c: Include "tree.h" and "langhooks.h".
(selftest::run_tests): Call lang_hooks.run_lang_selftests.
gcc/testsuite/ChangeLog:
PR c/64955
* gcc.dg/format/diagnostic-ranges.c: Add fix-it hints to expected
output.
From-SVN: r239260
Diffstat (limited to 'libcc1')
0 files changed, 0 insertions, 0 deletions