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(I'm so sorry!) Linux kernel mirror (for testing) git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel os linux
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123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154/* SPDX-License-Identifier: GPL-2.0 */#ifndef __LINUX_COMPILER_TYPES_H#error "Please do not include <linux/compiler-clang.h> directly, include <linux/compiler.h> instead."#endif
/* Compiler specific definitions for Clang compiler */
/* all clang versions usable with the kernel support KASAN ABI version 5 */#define KASAN_ABI_VERSION 5
/* * Clang 22 added preprocessor macros to match GCC, in hopes of eventually * dropping __has_feature support for sanitizers: * https://github.com/llvm/llvm-project/commit/568c23bbd3303518c5056d7f03444dae4fdc8a9c * Create these macros for older versions of clang so that it is easy to clean * up once the minimum supported version of LLVM for building the kernel always * creates these macros. * * Note: Checking __has_feature(*_sanitizer) is only true if the feature is * enabled. Therefore it is not required to additionally check defined(CONFIG_*) * to avoid adding redundant attributes in other configurations. */#if __has_feature(address_sanitizer) && !defined(__SANITIZE_ADDRESS__)#define __SANITIZE_ADDRESS__#endif#if __has_feature(hwaddress_sanitizer) && !defined(__SANITIZE_HWADDRESS__)#define __SANITIZE_HWADDRESS__#endif#if __has_feature(thread_sanitizer) && !defined(__SANITIZE_THREAD__)#define __SANITIZE_THREAD__#endif
/* * Treat __SANITIZE_HWADDRESS__ the same as __SANITIZE_ADDRESS__ in the kernel. */#ifdef __SANITIZE_HWADDRESS__#define __SANITIZE_ADDRESS__#endif
#ifdef __SANITIZE_ADDRESS__#define __no_sanitize_address \ __attribute__((no_sanitize("address", "hwaddress")))#else#define __no_sanitize_address#endif
#ifdef __SANITIZE_THREAD__#define __no_sanitize_thread \ __attribute__((no_sanitize("thread")))#else#define __no_sanitize_thread#endif
#if defined(CONFIG_ARCH_USE_BUILTIN_BSWAP)#define __HAVE_BUILTIN_BSWAP32__#define __HAVE_BUILTIN_BSWAP64__#define __HAVE_BUILTIN_BSWAP16__#endif /* CONFIG_ARCH_USE_BUILTIN_BSWAP */
#if __has_feature(undefined_behavior_sanitizer)/* GCC does not have __SANITIZE_UNDEFINED__ */#define __no_sanitize_undefined \ __attribute__((no_sanitize("undefined")))#else#define __no_sanitize_undefined#endif
#if __has_feature(memory_sanitizer)#define __SANITIZE_MEMORY__/* * Unlike other sanitizers, KMSAN still inserts code into functions marked with * no_sanitize("kernel-memory"). Using disable_sanitizer_instrumentation * provides the behavior consistent with other __no_sanitize_ attributes, * guaranteeing that __no_sanitize_memory functions remain uninstrumented. */#define __no_sanitize_memory __disable_sanitizer_instrumentation
/* * The __no_kmsan_checks attribute ensures that a function does not produce * false positive reports by: * - initializing all local variables and memory stores in this function; * - skipping all shadow checks; * - passing initialized arguments to this function's callees. */#define __no_kmsan_checks __attribute__((no_sanitize("kernel-memory")))#else#define __no_sanitize_memory#define __no_kmsan_checks#endif
/* * Support for __has_feature(coverage_sanitizer) was added in Clang 13 together * with no_sanitize("coverage"). Prior versions of Clang support coverage * instrumentation, but cannot be queried for support by the preprocessor. */#if __has_feature(coverage_sanitizer)#define __no_sanitize_coverage __attribute__((no_sanitize("coverage")))#else#define __no_sanitize_coverage#endif
/* Only Clang needs to disable the coverage sanitizer for kstack_erase. */#define __no_kstack_erase __no_sanitize_coverage
#if __has_feature(shadow_call_stack)# define __noscs __attribute__((__no_sanitize__("shadow-call-stack")))#endif
/* * Turn individual warnings and errors on and off locally, depending * on version. */#define __diag_clang(version, severity, s) \ __diag_clang_ ## version(__diag_clang_ ## severity s)
/* Severity used in pragma directives */#define __diag_clang_ignore ignored#define __diag_clang_warn warning#define __diag_clang_error error
#define __diag_str1(s) #s#define __diag_str(s) __diag_str1(s)#define __diag(s) _Pragma(__diag_str(clang diagnostic s))
#if CONFIG_CLANG_VERSION >= 230000#define __diag_clang_23(s) __diag(s)#else#define __diag_clang_23(s)#endif
#define __diag_clang_all(s) __diag(s)
#define __diag_ignore_all(option, comment) \ __diag_clang(all, ignore, option)
/* * clang has horrible behavior with "g" or "rm" constraints for asm * inputs, turning them into something worse than "m". Avoid using * constraints with multiple possible uses (but "ir" seems to be ok): * * https://github.com/llvm/llvm-project/issues/20571 */#define ASM_INPUT_G "ir"#define ASM_INPUT_RM "r"#define ASM_OUTPUT_RM "=r"
/* * Declare compiler support for __typeof_unqual__() operator. * * Bindgen uses LLVM even if our C compiler is GCC, so we cannot * rely on the auto-detected CONFIG_CC_HAS_TYPEOF_UNQUAL. */#define CC_HAS_TYPEOF_UNQUAL (__clang_major__ > 19 || (__clang_major__ == 19 && __clang_minor__ > 0))