./move.sh

1 files changed, 406 insertions, 0 deletions

diff --git a/src/libbasic/macro.h b/src/libbasic/macro.h
new file mode 100644
index 0000000000..e41aa4260f
--- /dev/null
+++ b/src/libbasic/macro.h
@@ -0,0 +1,406 @@
+#pragma once
+
+/***
+  This file is part of systemd.
+
+  Copyright 2010 Lennart Poettering
+
+  systemd is free software; you can redistribute it and/or modify it
+  under the terms of the GNU Lesser General Public License as published by
+  the Free Software Foundation; either version 2.1 of the License, or
+  (at your option) any later version.
+
+  systemd is distributed in the hope that it will be useful, but
+  WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+  Lesser General Public License for more details.
+
+  You should have received a copy of the GNU Lesser General Public License
+  along with systemd; If not, see <http://www.gnu.org/licenses/>.
+***/
+
+#include <assert.h>
+#include <inttypes.h>
+#include <stdbool.h>
+#include <sys/param.h>
+#include <sys/sysmacros.h>
+#include <sys/types.h>
+
+#define _printf_(a,b) __attribute__ ((format (printf, a, b)))
+#ifdef __clang__
+#  define _alloc_(...)
+#else
+#  define _alloc_(...) __attribute__ ((alloc_size(__VA_ARGS__)))
+#endif
+#define _sentinel_ __attribute__ ((sentinel))
+#define _unused_ __attribute__ ((unused))
+#define _destructor_ __attribute__ ((destructor))
+#define _pure_ __attribute__ ((pure))
+#define _const_ __attribute__ ((const))
+#define _deprecated_ __attribute__ ((deprecated))
+#define _packed_ __attribute__ ((packed))
+#define _malloc_ __attribute__ ((malloc))
+#define _weak_ __attribute__ ((weak))
+#define _likely_(x) (__builtin_expect(!!(x),1))
+#define _unlikely_(x) (__builtin_expect(!!(x),0))
+#define _public_ __attribute__ ((visibility("default")))
+#define _hidden_ __attribute__ ((visibility("hidden")))
+#define _weakref_(x) __attribute__((weakref(#x)))
+#define _alignas_(x) __attribute__((aligned(__alignof(x))))
+#define _cleanup_(x) __attribute__((cleanup(x)))
+
+/* Temporarily disable some warnings */
+#define DISABLE_WARNING_DECLARATION_AFTER_STATEMENT                     \
+        _Pragma("GCC diagnostic push");                                 \
+        _Pragma("GCC diagnostic ignored \"-Wdeclaration-after-statement\"")
+
+#define DISABLE_WARNING_FORMAT_NONLITERAL                               \
+        _Pragma("GCC diagnostic push");                                 \
+        _Pragma("GCC diagnostic ignored \"-Wformat-nonliteral\"")
+
+#define DISABLE_WARNING_MISSING_PROTOTYPES                              \
+        _Pragma("GCC diagnostic push");                                 \
+        _Pragma("GCC diagnostic ignored \"-Wmissing-prototypes\"")
+
+#define DISABLE_WARNING_NONNULL                                         \
+        _Pragma("GCC diagnostic push");                                 \
+        _Pragma("GCC diagnostic ignored \"-Wnonnull\"")
+
+#define DISABLE_WARNING_SHADOW                                          \
+        _Pragma("GCC diagnostic push");                                 \
+        _Pragma("GCC diagnostic ignored \"-Wshadow\"")
+
+#define DISABLE_WARNING_INCOMPATIBLE_POINTER_TYPES                      \
+        _Pragma("GCC diagnostic push");                                 \
+        _Pragma("GCC diagnostic ignored \"-Wincompatible-pointer-types\"")
+
+#define REENABLE_WARNING                                                \
+        _Pragma("GCC diagnostic pop")
+
+/* automake test harness */
+#define EXIT_TEST_SKIP 77
+
+#define XSTRINGIFY(x) #x
+#define STRINGIFY(x) XSTRINGIFY(x)
+
+#define XCONCATENATE(x, y) x ## y
+#define CONCATENATE(x, y) XCONCATENATE(x, y)
+
+#define UNIQ_T(x, uniq) CONCATENATE(__unique_prefix_, CONCATENATE(x, uniq))
+#define UNIQ __COUNTER__
+
+/* Rounds up */
+
+#define ALIGN4(l) (((l) + 3) & ~3)
+#define ALIGN8(l) (((l) + 7) & ~7)
+
+#if __SIZEOF_POINTER__ == 8
+#define ALIGN(l) ALIGN8(l)
+#elif __SIZEOF_POINTER__ == 4
+#define ALIGN(l) ALIGN4(l)
+#else
+#error "Wut? Pointers are neither 4 nor 8 bytes long?"
+#endif
+
+#define ALIGN_PTR(p) ((void*) ALIGN((unsigned long) (p)))
+#define ALIGN4_PTR(p) ((void*) ALIGN4((unsigned long) (p)))
+#define ALIGN8_PTR(p) ((void*) ALIGN8((unsigned long) (p)))
+
+static inline size_t ALIGN_TO(size_t l, size_t ali) {
+        return ((l + ali - 1) & ~(ali - 1));
+}
+
+#define ALIGN_TO_PTR(p, ali) ((void*) ALIGN_TO((unsigned long) (p), (ali)))
+
+/* align to next higher power-of-2 (except for: 0 => 0, overflow => 0) */
+static inline unsigned long ALIGN_POWER2(unsigned long u) {
+        /* clz(0) is undefined */
+        if (u == 1)
+                return 1;
+
+        /* left-shift overflow is undefined */
+        if (__builtin_clzl(u - 1UL) < 1)
+                return 0;
+
+        return 1UL << (sizeof(u) * 8 - __builtin_clzl(u - 1UL));
+}
+
+#define ELEMENTSOF(x)                                                    \
+        __extension__ (__builtin_choose_expr(                            \
+                !__builtin_types_compatible_p(typeof(x), typeof(&*(x))), \
+                sizeof(x)/sizeof((x)[0]),                                \
+                (void)0))
+/*
+ * container_of - cast a member of a structure out to the containing structure
+ * @ptr: the pointer to the member.
+ * @type: the type of the container struct this is embedded in.
+ * @member: the name of the member within the struct.
+ */
+#define container_of(ptr, type, member) __container_of(UNIQ, (ptr), type, member)
+#define __container_of(uniq, ptr, type, member)                         \
+        __extension__ ({                                                \
+                const typeof( ((type*)0)->member ) *UNIQ_T(A, uniq) = (ptr); \
+                (type*)( (char *)UNIQ_T(A, uniq) - offsetof(type,member) ); \
+        })
+
+#undef MAX
+#define MAX(a, b) __MAX(UNIQ, (a), UNIQ, (b))
+#define __MAX(aq, a, bq, b)                             \
+        __extension__ ({                                \
+                const typeof(a) UNIQ_T(A, aq) = (a);    \
+                const typeof(b) UNIQ_T(B, bq) = (b);    \
+                UNIQ_T(A,aq) > UNIQ_T(B,bq) ? UNIQ_T(A,aq) : UNIQ_T(B,bq); \
+        })
+
+/* evaluates to (void) if _A or _B are not constant or of different types */
+#define CONST_MAX(_A, _B) \
+        __extension__ (__builtin_choose_expr(                           \
+                __builtin_constant_p(_A) &&                             \
+                __builtin_constant_p(_B) &&                             \
+                __builtin_types_compatible_p(typeof(_A), typeof(_B)),   \
+                ((_A) > (_B)) ? (_A) : (_B),                            \
+                (void)0))
+
+/* takes two types and returns the size of the larger one */
+#define MAXSIZE(A, B) (sizeof(union _packed_ { typeof(A) a; typeof(B) b; }))
+
+#define MAX3(x,y,z)                                     \
+        __extension__ ({                                \
+                        const typeof(x) _c = MAX(x,y);  \
+                        MAX(_c, z);                     \
+                })
+
+#undef MIN
+#define MIN(a, b) __MIN(UNIQ, (a), UNIQ, (b))
+#define __MIN(aq, a, bq, b)                             \
+        __extension__ ({                                \
+                const typeof(a) UNIQ_T(A, aq) = (a);    \
+                const typeof(b) UNIQ_T(B, bq) = (b);    \
+                UNIQ_T(A,aq) < UNIQ_T(B,bq) ? UNIQ_T(A,aq) : UNIQ_T(B,bq); \
+        })
+
+#define MIN3(x,y,z)                                     \
+        __extension__ ({                                \
+                        const typeof(x) _c = MIN(x,y);  \
+                        MIN(_c, z);                     \
+                })
+
+#define LESS_BY(a, b) __LESS_BY(UNIQ, (a), UNIQ, (b))
+#define __LESS_BY(aq, a, bq, b)                         \
+        __extension__ ({                                \
+                const typeof(a) UNIQ_T(A, aq) = (a);    \
+                const typeof(b) UNIQ_T(B, bq) = (b);    \
+                UNIQ_T(A,aq) > UNIQ_T(B,bq) ? UNIQ_T(A,aq) - UNIQ_T(B,bq) : 0; \
+        })
+
+#undef CLAMP
+#define CLAMP(x, low, high) __CLAMP(UNIQ, (x), UNIQ, (low), UNIQ, (high))
+#define __CLAMP(xq, x, lowq, low, highq, high)                          \
+        __extension__ ({                                                \
+                const typeof(x) UNIQ_T(X,xq) = (x);                     \
+                const typeof(low) UNIQ_T(LOW,lowq) = (low);             \
+                const typeof(high) UNIQ_T(HIGH,highq) = (high);         \
+                        UNIQ_T(X,xq) > UNIQ_T(HIGH,highq) ?             \
+                                UNIQ_T(HIGH,highq) :                    \
+                                UNIQ_T(X,xq) < UNIQ_T(LOW,lowq) ?       \
+                                        UNIQ_T(LOW,lowq) :              \
+                                        UNIQ_T(X,xq);                   \
+        })
+
+/* [(x + y - 1) / y] suffers from an integer overflow, even though the
+ * computation should be possible in the given type. Therefore, we use
+ * [x / y + !!(x % y)]. Note that on "Real CPUs" a division returns both the
+ * quotient and the remainder, so both should be equally fast. */
+#define DIV_ROUND_UP(_x, _y)                                            \
+        __extension__ ({                                                \
+                const typeof(_x) __x = (_x);                            \
+                const typeof(_y) __y = (_y);                            \
+                (__x / __y + !!(__x % __y));                            \
+        })
+
+#define assert_message_se(expr, message)                                \
+        do {                                                            \
+                if (_unlikely_(!(expr)))                                \
+                        log_assert_failed(message, __FILE__, __LINE__, __PRETTY_FUNCTION__); \
+        } while (false)
+
+#define assert_se(expr) assert_message_se(expr, #expr)
+
+/* We override the glibc assert() here. */
+#undef assert
+#ifdef NDEBUG
+#define assert(expr) do {} while (false)
+#else
+#define assert(expr) assert_message_se(expr, #expr)
+#endif
+
+#define assert_not_reached(t)                                           \
+        do {                                                            \
+                log_assert_failed_unreachable(t, __FILE__, __LINE__, __PRETTY_FUNCTION__); \
+        } while (false)
+
+#if defined(static_assert)
+/* static_assert() is sometimes defined in a way that trips up
+ * -Wdeclaration-after-statement, hence let's temporarily turn off
+ * this warning around it. */
+#define assert_cc(expr)                                                 \
+        DISABLE_WARNING_DECLARATION_AFTER_STATEMENT;                    \
+        static_assert(expr, #expr);                                     \
+        REENABLE_WARNING
+#else
+#define assert_cc(expr)                                                 \
+        DISABLE_WARNING_DECLARATION_AFTER_STATEMENT;                    \
+        struct CONCATENATE(_assert_struct_, __COUNTER__) {              \
+                char x[(expr) ? 0 : -1];                                \
+        };                                                              \
+        REENABLE_WARNING
+#endif
+
+#define assert_log(expr, message) ((_likely_(expr))                     \
+        ? (true)                                                        \
+        : (log_assert_failed_return(message, __FILE__, __LINE__, __PRETTY_FUNCTION__), false))
+
+#define assert_return(expr, r)                                          \
+        do {                                                            \
+                if (!assert_log(expr, #expr))                           \
+                        return (r);                                     \
+        } while (false)
+
+#define assert_return_errno(expr, r, err)                               \
+        do {                                                            \
+                if (!assert_log(expr, #expr)) {                         \
+                        errno = err;                                    \
+                        return (r);                                     \
+                }                                                       \
+        } while (false)
+
+#define PTR_TO_INT(p) ((int) ((intptr_t) (p)))
+#define INT_TO_PTR(u) ((void *) ((intptr_t) (u)))
+#define PTR_TO_UINT(p) ((unsigned int) ((uintptr_t) (p)))
+#define UINT_TO_PTR(u) ((void *) ((uintptr_t) (u)))
+
+#define PTR_TO_LONG(p) ((long) ((intptr_t) (p)))
+#define LONG_TO_PTR(u) ((void *) ((intptr_t) (u)))
+#define PTR_TO_ULONG(p) ((unsigned long) ((uintptr_t) (p)))
+#define ULONG_TO_PTR(u) ((void *) ((uintptr_t) (u)))
+
+#define PTR_TO_INT32(p) ((int32_t) ((intptr_t) (p)))
+#define INT32_TO_PTR(u) ((void *) ((intptr_t) (u)))
+#define PTR_TO_UINT32(p) ((uint32_t) ((uintptr_t) (p)))
+#define UINT32_TO_PTR(u) ((void *) ((uintptr_t) (u)))
+
+#define PTR_TO_INT64(p) ((int64_t) ((intptr_t) (p)))
+#define INT64_TO_PTR(u) ((void *) ((intptr_t) (u)))
+#define PTR_TO_UINT64(p) ((uint64_t) ((uintptr_t) (p)))
+#define UINT64_TO_PTR(u) ((void *) ((uintptr_t) (u)))
+
+#define PTR_TO_SIZE(p) ((size_t) ((uintptr_t) (p)))
+#define SIZE_TO_PTR(u) ((void *) ((uintptr_t) (u)))
+
+#define CHAR_TO_STR(x) ((char[2]) { x, 0 })
+
+#define char_array_0(x) x[sizeof(x)-1] = 0;
+
+/* Returns the number of chars needed to format variables of the
+ * specified type as a decimal string. Adds in extra space for a
+ * negative '-' prefix (hence works correctly on signed
+ * types). Includes space for the trailing NUL. */
+#define DECIMAL_STR_MAX(type)                                           \
+        (2+(sizeof(type) <= 1 ? 3 :                                     \
+            sizeof(type) <= 2 ? 5 :                                     \
+            sizeof(type) <= 4 ? 10 :                                    \
+            sizeof(type) <= 8 ? 20 : sizeof(int[-2*(sizeof(type) > 8)])))
+
+#define DECIMAL_STR_WIDTH(x)                            \
+        ({                                              \
+                typeof(x) _x_ = (x);                    \
+                unsigned ans = 1;                       \
+                while (_x_ /= 10)                       \
+                        ans++;                          \
+                ans;                                    \
+        })
+
+#define SET_FLAG(v, flag, b) \
+        (v) = (b) ? ((v) | (flag)) : ((v) & ~(flag))
+
+#define CASE_F(X) case X:
+#define CASE_F_1(CASE, X) CASE_F(X)
+#define CASE_F_2(CASE, X, ...)  CASE(X) CASE_F_1(CASE, __VA_ARGS__)
+#define CASE_F_3(CASE, X, ...)  CASE(X) CASE_F_2(CASE, __VA_ARGS__)
+#define CASE_F_4(CASE, X, ...)  CASE(X) CASE_F_3(CASE, __VA_ARGS__)
+#define CASE_F_5(CASE, X, ...)  CASE(X) CASE_F_4(CASE, __VA_ARGS__)
+#define CASE_F_6(CASE, X, ...)  CASE(X) CASE_F_5(CASE, __VA_ARGS__)
+#define CASE_F_7(CASE, X, ...)  CASE(X) CASE_F_6(CASE, __VA_ARGS__)
+#define CASE_F_8(CASE, X, ...)  CASE(X) CASE_F_7(CASE, __VA_ARGS__)
+#define CASE_F_9(CASE, X, ...)  CASE(X) CASE_F_8(CASE, __VA_ARGS__)
+#define CASE_F_10(CASE, X, ...) CASE(X) CASE_F_9(CASE, __VA_ARGS__)
+#define CASE_F_11(CASE, X, ...) CASE(X) CASE_F_10(CASE, __VA_ARGS__)
+#define CASE_F_12(CASE, X, ...) CASE(X) CASE_F_11(CASE, __VA_ARGS__)
+#define CASE_F_13(CASE, X, ...) CASE(X) CASE_F_12(CASE, __VA_ARGS__)
+#define CASE_F_14(CASE, X, ...) CASE(X) CASE_F_13(CASE, __VA_ARGS__)
+#define CASE_F_15(CASE, X, ...) CASE(X) CASE_F_14(CASE, __VA_ARGS__)
+#define CASE_F_16(CASE, X, ...) CASE(X) CASE_F_15(CASE, __VA_ARGS__)
+#define CASE_F_17(CASE, X, ...) CASE(X) CASE_F_16(CASE, __VA_ARGS__)
+#define CASE_F_18(CASE, X, ...) CASE(X) CASE_F_17(CASE, __VA_ARGS__)
+#define CASE_F_19(CASE, X, ...) CASE(X) CASE_F_18(CASE, __VA_ARGS__)
+#define CASE_F_20(CASE, X, ...) CASE(X) CASE_F_19(CASE, __VA_ARGS__)
+
+#define GET_CASE_F(_1,_2,_3,_4,_5,_6,_7,_8,_9,_10,_11,_12,_13,_14,_15,_16,_17,_18,_19,_20,NAME,...) NAME
+#define FOR_EACH_MAKE_CASE(...) \
+        GET_CASE_F(__VA_ARGS__,CASE_F_20,CASE_F_19,CASE_F_18,CASE_F_17,CASE_F_16,CASE_F_15,CASE_F_14,CASE_F_13,CASE_F_12,CASE_F_11, \
+                               CASE_F_10,CASE_F_9,CASE_F_8,CASE_F_7,CASE_F_6,CASE_F_5,CASE_F_4,CASE_F_3,CASE_F_2,CASE_F_1) \
+                   (CASE_F,__VA_ARGS__)
+
+#define IN_SET(x, ...)                          \
+        ({                                      \
+                bool _found = false;            \
+                /* If the build breaks in the line below, you need to extend the case macros */ \
+                static _unused_ char _static_assert__macros_need_to_be_extended[20 - sizeof((int[]){__VA_ARGS__})/sizeof(int)]; \
+                switch(x) {                     \
+                FOR_EACH_MAKE_CASE(__VA_ARGS__) \
+                        _found = true;          \
+                        break;                  \
+                default:                        \
+                        break;                  \
+                }                               \
+                _found;                         \
+        })
+
+#define SWAP_TWO(x, y) do {                        \
+                typeof(x) _t = (x);                \
+                (x) = (y);                         \
+                (y) = (_t);                        \
+        } while (false)
+
+/* Define C11 thread_local attribute even on older gcc compiler
+ * version */
+#ifndef thread_local
+/*
+ * Don't break on glibc < 2.16 that doesn't define __STDC_NO_THREADS__
+ * see http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53769
+ */
+#if __STDC_VERSION__ >= 201112L && !(defined(__STDC_NO_THREADS__) || (defined(__GNU_LIBRARY__) && __GLIBC__ == 2 && __GLIBC_MINOR__ < 16))
+#define thread_local _Thread_local
+#else
+#define thread_local __thread
+#endif
+#endif
+
+/* Define C11 noreturn without <stdnoreturn.h> and even on older gcc
+ * compiler versions */
+#ifndef noreturn
+#if __STDC_VERSION__ >= 201112L
+#define noreturn _Noreturn
+#else
+#define noreturn __attribute__((noreturn))
+#endif
+#endif
+
+#define DEFINE_TRIVIAL_CLEANUP_FUNC(type, func)                 \
+        static inline void func##p(type *p) {                   \
+                if (*p)                                         \
+                        func(*p);                               \
+        }                                                       \
+        struct __useless_struct_to_allow_trailing_semicolon__
+
+#include "log.h"