diff options
Diffstat (limited to 'ws_diag_control.h')
| -rw-r--r-- | ws_diag_control.h | 238 |
1 files changed, 0 insertions, 238 deletions
diff --git a/ws_diag_control.h b/ws_diag_control.h deleted file mode 100644 index 52799f540b..0000000000 --- a/ws_diag_control.h +++ /dev/null @@ -1,238 +0,0 @@ -/* ws_diag_control.h - * Turn compiler diagnostic messages on and off. - * - * From FreeRADIUS build.h. - * - * @copyright 2013 The FreeRADIUS server project - * - * That project is covered by the GPLv2, so: - * - * SPDX-License-Identifier: GPL-2.0-or-later - */ - -#ifndef __WS_DIAG_CONTROL_H__ -#define __WS_DIAG_CONTROL_H__ - -#include "ws_compiler_tests.h" - -#ifdef __cplusplus -extern "C" { -#endif - -#define XSTRINGIFY(x) #x - -/* - * Macros for controlling warnings in various compilers. - */ -#define DIAG_JOINSTR(x,y) XSTRINGIFY(x ## y) - -/* - * XXX - this is only for GCC or GCC-compatible compilers, and we only use - * it to have a macro that takes a warning as an argument and turns it - * off in the appropriate fashion for Clang and GCC; it should only be - * used internally in this header. - */ -#define DIAG_DO_PRAGMA(x) _Pragma (#x) - -#if defined(__clang__) - /* - * Clang, so we'd use _Pragma("clang diagnostic XXX"), if it's - * supported. - */ - #if WS_IS_AT_LEAST_CLANG_VERSION(2,8) - /* - * This is Clang 2.8 or later: we can use "clang diagnostic ignored -Wxxx" - * and "clang diagnostic push/pop". - */ - #define DIAG_PRAGMA(x) DIAG_DO_PRAGMA(clang diagnostic x) - #define DIAG_OFF(x) DIAG_PRAGMA(push) DIAG_PRAGMA(ignored DIAG_JOINSTR(-W,x)) - #define DIAG_ON(x) DIAG_PRAGMA(pop) - #endif - - /* - * Not all versions of Clang understand -Wpedantic. Clang 4.0 appears - * to be the first version to do so. - */ - #if WS_IS_AT_LEAST_CLANG_VERSION(4,0) - #define DIAG_OFF_PEDANTIC DIAG_OFF(pedantic) - #define DIAG_ON_PEDANTIC DIAG_ON(pedantic) - #else - #define DIAG_OFF_PEDANTIC - #define DIAG_ON_PEDANTIC - #endif -#elif defined(__GNUC__) - /* - * GCC, or a compiler (other than Clang) that claims to be GCC. - * We assume that the compiler accepts _Pragma("GCC diagnostic xxx") - * even if it's only claiming to be GCC. - */ - #if WS_IS_AT_LEAST_GNUC_VERSION(4,8) - /* - * This is GCC 4.8 or later, or a compiler claiming to be that. - * We can use "GCC diagnostic ignored -Wxxx" (introduced in 4.2) - * and "GCC diagnostic push/pop" (introduced in 4.6), *and* gcc - * supports "-Wpedantic" (introduced in 4.8), allowing us to - * turn off pedantic warnings with DIAG_OFF(). - */ - #define DIAG_PRAGMA(x) DIAG_DO_PRAGMA(GCC diagnostic x) - #define DIAG_OFF(x) DIAG_PRAGMA(push) DIAG_PRAGMA(ignored DIAG_JOINSTR(-W,x)) - #define DIAG_ON(x) DIAG_PRAGMA(pop) - - /* - * We assume GCC 4.8 and later understand -Wpedantic. - */ - #define DIAG_OFF_PEDANTIC DIAG_OFF(pedantic) - #define DIAG_ON_PEDANTIC DIAG_ON(pedantic) - #else - #define DIAG_OFF_PEDANTIC - #define DIAG_ON_PEDANTIC - #endif -#endif - -#ifndef DIAG_OFF - /* - * This is none of the above; we don't have any way to turn diagnostics - * on or off. - * - * XXX - you can do that in MSVC, but it's done differently; we'd - * have to have macros for *particular* diagnostics, using the - * warning flag for GCC and Clang and the error number for MSVC. - */ - #define DIAG_OFF(x) - #define DIAG_ON(x) - #define DIAG_OFF_PEDANTIC - #define DIAG_ON_PEDANTIC -#endif - -/* Use for clang specific pragmas, so we can keep -Wpragmas enabled */ -#ifdef __clang__ -# define DIAG_OFF_CLANG(x) DIAG_OFF(x) -# define DIAG_ON_CLANG(x) DIAG_ON(x) -#else -# define DIAG_OFF_CLANG(x) -# define DIAG_ON_CLANG(x) -#endif - -/* - * Suppress complaints about narrowing converstions and about signed vs. - * unsigned comparison. - * - * XXX - this is done solely to squelch complaints from code generated - * by Flex, but newer versions of Flex might fix the code; can we - * check the version of Flex and suppress only the checks that code - * generated by that version of Flex triggers? - */ -#if defined(_MSC_VER) - /* - * Suppress: - * - * warning C4018: signed/unsigned mismatch - * warning C4244: 'initializing' : conversion from '__int64' to 'int', possible loss of data - * warning C4267: 'argument' : conversion from 'size_t' to 'int', possible loss of data - * - * as well as Visual Studio Code Analyzer warnings: - * - * warning C6011: Dereferencing NULL pointer - * warning C6308: 'realloc' might return null pointer - * warning C6386: Buffer overrun - * warning C6387: 'XXX' could be '0' - * warning C28182: Dereferencing NULL pointer - */ - #define DIAG_OFF_FLEX \ - __pragma(warning(push)) \ - __pragma(warning(disable:4018)) \ - __pragma(warning(disable:4244)) \ - __pragma(warning(disable:4267)) \ - __pragma(warning(disable:6011)) \ - __pragma(warning(disable:6308)) \ - __pragma(warning(disable:6386)) \ - __pragma(warning(disable:6387)) \ - __pragma(warning(disable:28182)) - #define DIAG_ON_FLEX __pragma(warning(pop)) - - /* - * XXX - is there an issue with shadowed definitions with MSVC if - * somebody were to happen to use Berkeley YACC rather than Bison? - */ - #define DIAG_OFF_BYACC - #define DIAG_ON_BYACC -#else - /* - * Suppress: - * - * -Wsigned-compare warnings - * -Wshorten-64-to-32 warnings, if the compiler *has* -Wshorten-64-to-32 - * -Wunreachable-code warnings - * - * We use DIAG_OFF() and DIAG_ON(), so we only use features that the - * compiler supports. - * - * We disable -Wshorten-64-to-32 if we're using Clang, or if __APPLE__ - * is defined; that option was originally added to an Apple version of - * GCC, and at least some versions of Clang support it - given that - * the Clang work started at Apple, it may be in all versions of Clang. - * - * (Does no version of GCC or Clang support the same generic "you're - * narrowing a value, and you didn't throw in a cast to assert that - * you know what you're doing" warning that MSVC does?) - */ - #if defined(__clang__) || defined(__APPLE__) - #define DIAG_OFF_FLEX \ - DIAG_OFF(sign-compare) \ - DIAG_OFF(shorten-64-to-32) \ - DIAG_OFF(unreachable-code) - #define DIAG_ON_FLEX \ - DIAG_ON(unreachable-code) \ - DIAG_ON(shorten-64-to-32) \ - DIAG_ON(sign-compare) - #else - #define DIAG_OFF_FLEX \ - DIAG_OFF(sign-compare) - #define DIAG_ON_FLEX \ - DIAG_ON(sign-compare) - #endif - - /* - * Berkeley YACC and, apparently, some versions of Bison, such as the - * one in Fedora 21, generate a global declaration of yylval, or the - * appropriately prefixed version of yylval, in grammar.h, *even - * though it's been told to generate a pure parser, meaning it - * doesn't have any global variables*. Other versions of Bison, such - * as the one in macOS Sierra don't do that. - * - * That causes a warning due to the local declaration in the parser - * shadowing the global declaration. - * - * So, if we have _Pragma, and have pragmas to suppress diagnostics, - * we use it to turn off -Wshadow warnings. - * - * XXX - do this for Bison only in versions of Bison with this - * problem? - */ - #define DIAG_OFF_BYACC \ - DIAG_OFF(shadow) - #define DIAG_ON_BYACC \ - DIAG_ON(shadow) -#endif - -/* - * For dealing with APIs which are only deprecated in macOS (like the - * OpenSSL and MIT/Heimdal Kerberos APIs). - * - * Dear Apple: this is a cross-platform program, and we're not - * going to use your Shiny New Frameworks on macOS unless there's - * a sufficiently clear benefit to make it worth our while to have - * both macOS and non-macOS versions of the code. - */ -#ifdef __APPLE__ -# define USES_APPLE_DEPRECATED_API DIAG_OFF(deprecated-declarations) -# define USES_APPLE_RST DIAG_ON(deprecated-declarations) -#else -# define USES_APPLE_DEPRECATED_API -# define USES_APPLE_RST -#endif - -#ifdef __cplusplus -} -#endif -#endif /* __WS_DIAG_CONTROL_H__ */ |