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| author | Immad Mir <mirimmad17@gmail.com> | 2022-07-02 22:09:37 +0530 |
|---|---|---|
| committer | Immad Mir <mirimmad17@gmail.com> | 2022-07-02 22:14:26 +0530 |
| commit | 97baacba963c06e3d0e33cde04e7e687671e60e7 (patch) | |
| tree | d6ffcc9ecb70cc37ca2f55e11834ff8b942f1edd /gcc/gimple-range-infer.cc | |
| parent | ed974488991256c50f151ccfb271e198072dfc4d (diff) | |
| download | gcc-97baacba963c06e3d0e33cde04e7e687671e60e7.zip gcc-97baacba963c06e3d0e33cde04e7e687671e60e7.tar.gz gcc-97baacba963c06e3d0e33cde04e7e687671e60e7.tar.bz2 | |
analyzer: implement five new warnings for misuse of POSIX file descriptor APIs [PR106003].
This patch adds a new state machine to the analyzer for checking usage of POSIX file descriptor
APIs with five new warnings.
It adds:
- check for FD leaks (CWE 775).
- check for double "close" of a FD (CWE-1341).
- check for read/write of a closed file descriptor.
- check whether a file descriptor was used without being checked for validity.
- check for read/write of a descriptor opened for just writing/reading.
gcc/ChangeLog:
PR analyzer/106003
* Makefile.in (ANALYZER_OBJS): Add sm-fd.o.
* doc/invoke.texi: Add -Wanalyzer-fd-double-close, -Wanalyzer-fd-leak,
-Wanalyzer-fd-access-mode-mismatch, -Wanalyzer-fd-use-without-check,
-Wanalyzer-fd-use-after-close.
gcc/analyzer/ChangeLog:
PR analyzer/106003
* analyzer.opt (Wanalyzer-fd-leak): New option.
(Wanalyzer-fd-access-mode-mismatch): New option.
(Wanalyzer-fd-use-without-check): New option.
(Wanalyzer-fd-double-close): New option.
(Wanalyzer-fd-use-after-close): New option.
* sm.h (make_fd_state_machine): New decl.
* sm.cc (make_checkers): Call make_fd_state_machine.
* sm-fd.cc: New file.
gcc/testsuite/ChangeLog:
PR analyzer/106003
* gcc.dg/analyzer/fd-1.c: New test.
* gcc.dg/analyzer/fd-2.c: New test.
* gcc.dg/analyzer/fd-3.c: New test.
* gcc.dg/analyzer/fd-4.c: New test.
Diffstat (limited to 'gcc/gimple-range-infer.cc')
0 files changed, 0 insertions, 0 deletions