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2018-07-24Don't use __extension__ in C++ codeA. Wilcox
A few important notes: * __extension__ is a GNU C "alternate" keyword, not a C++ keyword.[1] * __extension__ is designed to work on "expressions"; it does work on #include_next in C mode, but it has no effect in C++ mode; the warning will still appear, if enabled, even with __extension__ preceding #include_next. This is because #include_next is not considered an expression in C++, so the compiler attaches __extension__ to the first expression of the header. All of this leads us to a build failure while building at least all Mozilla software. Moz has an alternate -isystem dir searched before /usr/include that overrides some headers, including <features.h>. The first statement in each of these headers is a #pragma, and since __extension__ is looking for an expression, and #pragma is a "null" expression, we end up with the following error: dist/system_wrappers/features.h:1:9: error: '#pragma' is not allowed here Since __extension__ has no effect on #include_next in C++ mode anyway, and since it can cause breakage, this commit omits __extension__ in C++ mode. [1]: https://gcc.gnu.org/onlinedocs/gcc-6.4.0/gcc/Alternate-Keywords.html
2016-09-10Bump copyright yearsin
2015-06-25Add __extension__ mark to include_next to silence -pedanticSteven Barth
Signed-off-by: Steven Barth <steven@midlink.org>
2015-06-03Use namespace-safe macro, param and variable namesTrutz Behn
2015-05-13Add LICENSE headersin
2015-05-13Add fortify_fn() helper in fortify-headers.hsin
2015-03-14Use __typeof__ to in part avoid replicating function typesTrutz Behn
2015-03-14Fix typo in attribute nameTrutz Behn
2015-03-14Add __artificial__ to aid in debuggingsin
2015-03-13Restore C++ supportsin
2015-03-13Implement snprintf() and sprintf() using __builtin_va_arg_pack()sin
Requires at least GCC 4.3.
2015-03-13Re-order vsnprintf() and vsprintf()sin
vsprintf() needs to access __vsnprintf_orig().
2015-03-13Fix typosin
2015-03-13Rework fortify implementation to use extern inlinesin
Overriding functions with macros is legal in C but a lot of software is not prepared for it. Use the extern inline method to achieve the same result.
2015-03-11Put include guards in the reserved namespaceTrutz Behn
fortify-headers is considered part of the implementation.
2015-03-11Ignore C++ for nowsin
It is not legal to override standard functions using macros in C++. We may have to revisit this in the future.
2015-03-11Add ifdef guards for C++ codesin
2015-03-03Fix signed/unsigned warningsin
2015-03-03Remove gcc attribute decorationsin
2015-03-03Don't trap on error for vsprintf() and friendssin
2015-03-01Add fwrite() checksin
2015-03-01Add fread() checksin
2015-03-01Add vsprintf() checksin
2015-03-01Fix potential signed/unsigned warningsin
2015-03-01Add sprintf() checksin
2015-02-28Minor style fixsin
2015-02-24Remove compile time checkssin
These can produce false positives. Given that we support fortify source level 1 we shouldn't break valid code.
2015-02-22Remove header license commentssin
2015-02-04Remember to #undef __errordeclsin
Thanks zhasha for spotting this.
2015-02-04Style fixsin
2015-01-30Remove __restrictsin
2015-01-29Add compile-time checks as wellsin
2015-01-29Add license infosin
2015-01-29Style fixsin
2015-01-29Add fgets() checkssin
2015-01-28Use BSD-style func defssin
2015-01-28Use local _n to avoid multiple evaluationsin
2015-01-28Add snprintf() checkssin
We need to use a variadic macro in this case because GCC doesn't allow inline functions with variable argument lists.
2015-01-28Use __builtin_va_listsin
2015-01-28Add vsnprintf() checkssin