diff options
Diffstat (limited to 'src/config.h')
| -rw-r--r-- | src/config.h | 213 |
1 files changed, 0 insertions, 213 deletions
diff --git a/src/config.h b/src/config.h deleted file mode 100644 index 14c9305..0000000 --- a/src/config.h +++ /dev/null @@ -1,213 +0,0 @@ -// Copyright © Tavian Barnes <tavianator@tavianator.com> -// SPDX-License-Identifier: 0BSD - -/** - * Configuration and feature/platform detection. - */ - -#ifndef BFS_CONFIG_H -#define BFS_CONFIG_H - -#include <stddef.h> - -#if __STDC_VERSION__ < 202311L -# include <stdalign.h> -# include <stdbool.h> -# include <stdnoreturn.h> -#endif - -// bfs packaging configuration - -#ifndef BFS_COMMAND -# define BFS_COMMAND "bfs" -#endif -#ifndef BFS_VERSION -# define BFS_VERSION "3.0.2" -#endif -#ifndef BFS_HOMEPAGE -# define BFS_HOMEPAGE "https://tavianator.com/projects/bfs.html" -#endif - -// Check for system headers - -#ifdef __has_include - -#if __has_include(<mntent.h>) -# define BFS_HAS_MNTENT_H true -#endif -#if __has_include(<paths.h>) -# define BFS_HAS_PATHS_H true -#endif -#if __has_include(<sys/acl.h>) -# define BFS_HAS_SYS_ACL_H true -#endif -#if __has_include(<sys/capability.h>) -# define BFS_HAS_SYS_CAPABILITY_H true -#endif -#if __has_include(<sys/extattr.h>) -# define BFS_HAS_SYS_EXTATTR_H true -#endif -#if __has_include(<sys/mkdev.h>) -# define BFS_HAS_SYS_MKDEV_H true -#endif -#if __has_include(<sys/param.h>) -# define BFS_HAS_SYS_PARAM_H true -#endif -#if __has_include(<sys/sysmacros.h>) -# define BFS_HAS_SYS_SYSMACROS_H true -#endif -#if __has_include(<sys/xattr.h>) -# define BFS_HAS_SYS_XATTR_H true -#endif -#if __has_include(<util.h>) -# define BFS_HAS_UTIL_H true -#endif - -#else // !__has_include - -#define BFS_HAS_MNTENT_H __GLIBC__ -#define BFS_HAS_PATHS_H true -#define BFS_HAS_SYS_ACL_H true -#define BFS_HAS_SYS_CAPABILITY_H __linux__ -#define BFS_HAS_SYS_EXTATTR_H __FreeBSD__ -#define BFS_HAS_SYS_MKDEV_H false -#define BFS_HAS_SYS_PARAM_H true -#define BFS_HAS_SYS_SYSMACROS_H __GLIBC__ -#define BFS_HAS_SYS_XATTR_H __linux__ -#define BFS_HAS_UTIL_H __NetBSD__ - -#endif // !__has_include - -#ifndef BFS_USE_MNTENT_H -# define BFS_USE_MNTENT_H BFS_HAS_MNTENT_H -#endif -#ifndef BFS_USE_PATHS_H -# define BFS_USE_PATHS_H BFS_HAS_PATHS_H -#endif -#ifndef BFS_USE_SYS_ACL_H -# define BFS_USE_SYS_ACL_H BFS_HAS_SYS_ACL_H -#endif -#ifndef BFS_USE_SYS_CAPABILITY_H -# define BFS_USE_SYS_CAPABILITY_H BFS_HAS_SYS_CAPABILITY_H -#endif -#ifndef BFS_USE_SYS_EXTATTR_H -# define BFS_USE_SYS_EXTATTR_H BFS_HAS_SYS_EXTATTR_H -#endif -#ifndef BFS_USE_SYS_MKDEV_H -# define BFS_USE_SYS_MKDEV_H BFS_HAS_SYS_MKDEV_H -#endif -#ifndef BFS_USE_SYS_PARAM_H -# define BFS_USE_SYS_PARAM_H BFS_HAS_SYS_PARAM_H -#endif -#ifndef BFS_USE_SYS_SYSMACROS_H -# define BFS_USE_SYS_SYSMACROS_H BFS_HAS_SYS_SYSMACROS_H -#endif -#ifndef BFS_USE_SYS_XATTR_H -# define BFS_USE_SYS_XATTR_H BFS_HAS_SYS_XATTR_H -#endif -#ifndef BFS_USE_UTIL_H -# define BFS_USE_UTIL_H BFS_HAS_UTIL_H -#endif - -// Stub out feature detection on old/incompatible compilers - -#ifndef __has_feature -# define __has_feature(feat) false -#endif - -#ifndef __has_c_attribute -# define __has_c_attribute(attr) false -#endif - -#ifndef __has_attribute -# define __has_attribute(attr) false -#endif - -// Platform detection - -// Get the definition of BSD if available -#if BFS_USE_SYS_PARAM_H -# include <sys/param.h> -#endif - -#ifndef __GLIBC_PREREQ -# define __GLIBC_PREREQ(maj, min) false -#endif - -// Fundamental utilities - -/** - * Get the length of an array. - */ -#define countof(array) (sizeof(array) / sizeof(0[array])) - -/** - * False sharing/destructive interference/largest cache line size. - */ -#ifdef __GCC_DESTRUCTIVE_SIZE -# define FALSE_SHARING_SIZE __GCC_DESTRUCTIVE_SIZE -#else -# define FALSE_SHARING_SIZE 64 -#endif - -/** - * True sharing/constructive interference/smallest cache line size. - */ -#ifdef __GCC_CONSTRUCTIVE_SIZE -# define TRUE_SHARING_SIZE __GCC_CONSTRUCTIVE_SIZE -#else -# define TRUE_SHARING_SIZE 64 -#endif - -/** - * Alignment specifier that avoids false sharing. - */ -#define cache_align alignas(FALSE_SHARING_SIZE) - -// Wrappers for attributes - -/** - * Silence compiler warnings about switch/case fall-throughs. - */ -#if __has_c_attribute(fallthrough) -# define fallthru [[fallthrough]] -#elif __has_attribute(fallthrough) -# define fallthru __attribute__((fallthrough)) -#else -# define fallthru ((void)0) -#endif - -/** - * Adds compiler warnings for bad printf()-style function calls, if supported. - */ -#if __has_attribute(format) -# define BFS_FORMATTER(fmt, args) __attribute__((format(printf, fmt, args))) -#else -# define BFS_FORMATTER(fmt, args) -#endif - -/** - * Check if function multiversioning via GNU indirect functions (ifunc) is supported. - */ -#ifndef BFS_USE_TARGET_CLONES -# if __has_attribute(target_clones) && (__GLIBC__ || __FreeBSD__ || __NetBSD__) -# define BFS_USE_TARGET_CLONES true -# endif -#endif - -/** - * Ignore a particular GCC warning for a region of code. - */ -#if __GNUC__ -# define BFS_PRAGMA_STRINGIFY(...) _Pragma(#__VA_ARGS__) -# define BFS_SUPPRESS(warning) \ - _Pragma("GCC diagnostic push"); \ - BFS_PRAGMA_STRINGIFY(GCC diagnostic ignored warning) -# define BFS_UNSUPPRESS() \ - _Pragma("GCC diagnostic pop") -#else -# define BFS_SUPPRESS(warning) -# define BFS_UNSUPPRESS() -#endif - -#endif // BFS_CONFIG_H |