| | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
| | 2 | #ifndef __LINUX_COMPILER_TYPES_H |
| | 3 | #error "Please don't include <linux/compiler-clang.h> directly, include <linux/compiler.h> instead." |
| | 4 | #endif |
| | 5 | |
| | 6 | /* Compiler specific definitions for Clang compiler */ |
| | 7 | |
| | 8 | /* same as gcc, this was present in clang-2.6 so we can assume it works |
| | 9 | * with any version that can compile the kernel |
| | 10 | */ |
| | 11 | #define __UNIQUE_ID(prefix) __PASTE(__PASTE(__UNIQUE_ID_, prefix), __COUNTER__) |
| | 12 | |
| | 13 | /* all clang versions usable with the kernel support KASAN ABI version 5 */ |
| | 14 | #define KASAN_ABI_VERSION 5 |
| | 15 | |
| | 16 | /* |
| | 17 | * Note: Checking __has_feature(*_sanitizer) is only true if the feature is |
| | 18 | * enabled. Therefore it is not required to additionally check defined(CONFIG_*) |
| | 19 | * to avoid adding redundant attributes in other configurations. |
| | 20 | */ |
| | 21 | |
| | 22 | #if __has_feature(address_sanitizer) || __has_feature(hwaddress_sanitizer) |
| | 23 | /* Emulate GCC's __SANITIZE_ADDRESS__ flag */ |
| | 24 | #define __SANITIZE_ADDRESS__ |
| | 25 | #define __no_sanitize_address \ |
| | 26 | __attribute__((no_sanitize("address", "hwaddress"))) |
| | 27 | #else |
| | 28 | #define __no_sanitize_address |
| | 29 | #endif |
| | 30 | |
| | 31 | #if __has_feature(thread_sanitizer) |
| | 32 | /* emulate gcc's __SANITIZE_THREAD__ flag */ |
| | 33 | #define __SANITIZE_THREAD__ |
| | 34 | #define __no_sanitize_thread \ |
| | 35 | __attribute__((no_sanitize("thread"))) |
| | 36 | #else |
| | 37 | #define __no_sanitize_thread |
| | 38 | #endif |
| | 39 | |
| | 40 | #if defined(CONFIG_ARCH_USE_BUILTIN_BSWAP) |
| | 41 | #define __HAVE_BUILTIN_BSWAP32__ |
| | 42 | #define __HAVE_BUILTIN_BSWAP64__ |
| | 43 | #define __HAVE_BUILTIN_BSWAP16__ |
| | 44 | #endif /* CONFIG_ARCH_USE_BUILTIN_BSWAP */ |
| | 45 | |
| | 46 | #if __has_feature(undefined_behavior_sanitizer) |
| | 47 | /* GCC does not have __SANITIZE_UNDEFINED__ */ |
| | 48 | #define __no_sanitize_undefined \ |
| | 49 | __attribute__((no_sanitize("undefined"))) |
| | 50 | #else |
| | 51 | #define __no_sanitize_undefined |
| | 52 | #endif |
| | 53 | |
| | 54 | /* |
| | 55 | * Support for __has_feature(coverage_sanitizer) was added in Clang 13 together |
| | 56 | * with no_sanitize("coverage"). Prior versions of Clang support coverage |
| | 57 | * instrumentation, but cannot be queried for support by the preprocessor. |
| | 58 | */ |
| | 59 | #if __has_feature(coverage_sanitizer) |
| | 60 | #define __no_sanitize_coverage __attribute__((no_sanitize("coverage"))) |
| | 61 | #else |
| | 62 | #define __no_sanitize_coverage |
| | 63 | #endif |
| | 64 | |
| | 65 | #if __has_feature(shadow_call_stack) |
| | 66 | # define __noscs __attribute__((__no_sanitize__("shadow-call-stack"))) |
| | 67 | #endif |
| | 68 | |
| | 69 | #define __nocfi __attribute__((__no_sanitize__("cfi"))) |
| | 70 | #define __cficanonical __attribute__((__cfi_canonical_jump_table__)) |
projects / mirror_ubuntu-jammy-kernel.git / blame_incremental