dracut-install: make use of _cleanup_* macros

1 files changed, 121 insertions, 29 deletions

diff --git a/install/macro.h b/install/macro.h
index 1c0aa915..ac61b495 100644
--- a/install/macro.h
+++ b/install/macro.h
@@ -1,7 +1,6 @@
 /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
 
-#ifndef foomacrohfoo
-#define foomacrohfoo
+#pragma once
 
 /***
   This file is part of systemd.
@@ -45,16 +44,38 @@
 #define _hidden_ __attribute__ ((visibility("hidden")))
 #define _weakref_(x) __attribute__((weakref(#x)))
 #define _introspect_(x) __attribute__((section("introspect." x)))
+#define _alignas_(x) __attribute__((aligned(__alignof(x))))
+#define _cleanup_(x) __attribute__((cleanup(x)))
+
+/* automake test harness */
+#define EXIT_TEST_SKIP 77
 
 #define XSTRINGIFY(x) #x
 #define STRINGIFY(x) XSTRINGIFY(x)
 
 /* Rounds up */
-#define ALIGN(l) ALIGN_TO((l), sizeof(void*))
+
+#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))
+
 #define ELEMENTSOF(x) (sizeof(x)/sizeof((x)[0]))
 
 /*
@@ -64,34 +85,35 @@ static inline size_t ALIGN_TO(size_t l, size_t ali) {
  * @member: the name of the member within the struct.
  *
  */
-#define container_of(ptr, type, member) ({ \
-        const typeof( ((type *)0)->member ) *__mptr = (ptr); \
-        (type *)( (char *)__mptr - offsetof(type,member) );})
+#define container_of(ptr, type, member)                                 \
+        __extension__ ({                                                \
+                        const typeof( ((type *)0)->member ) *__mptr = (ptr); \
+                        (type *)( (char *)__mptr - offsetof(type,member) ); \
+                })
 
-#ifndef MAX
-#define MAX(a,b)                                \
-        __extension__ ({                        \
-                        typeof(a) _a = (a);     \
-                        typeof(b) _b = (b);     \
-                        _a > _b ? _a : _b;      \
+#undef MAX
+#define MAX(a,b)                                 \
+        __extension__ ({                         \
+                        typeof(a) _a = (a);      \
+                        typeof(b) _b = (b);      \
+                        _a > _b ? _a : _b;       \
                 })
-#endif
 
-#define MAX3(a,b,c)                             \
-        MAX(MAX(a,b),c)
+#define MAX3(x,y,z)                              \
+        __extension__ ({                         \
+                        typeof(x) _c = MAX(x,y); \
+                        MAX(_c, z);              \
+                })
 
-#ifndef MIN
+#undef MIN
 #define MIN(a,b)                                \
         __extension__ ({                        \
                         typeof(a) _a = (a);     \
                         typeof(b) _b = (b);     \
                         _a < _b ? _a : _b;      \
                 })
-#endif
-
-#define MIN3(a,b,c)                             \
-        MIN(MIN(a,b),c)
 
+#ifndef CLAMP
 #define CLAMP(x, low, high)                                             \
         __extension__ ({                                                \
                         typeof(x) _x = (x);                             \
@@ -99,6 +121,7 @@ static inline size_t ALIGN_TO(size_t l, size_t ali) {
                         typeof(high) _high = (high);                    \
                         ((_x > _high) ? _high : ((_x < _low) ? _low : _x)); \
                 })
+#endif
 
 #define assert_se(expr)                                                 \
         do {                                                            \
@@ -119,14 +142,21 @@ static inline size_t ALIGN_TO(size_t l, size_t ali) {
                 log_assert_failed_unreachable(t, __FILE__, __LINE__, __PRETTY_FUNCTION__); \
         } while (false)
 
-#define assert_cc(expr)                            \
-        do {                                       \
-                switch (0) {                       \
-                        case 0:                    \
-                        case !!(expr):             \
-                                ;                  \
-                }                                  \
+#if defined(static_assert)
+#define assert_cc(expr)                         \
+        do {                                    \
+                static_assert(expr, #expr);     \
+        } while (false)
+#else
+#define assert_cc(expr)                         \
+        do {                                    \
+                switch (0) {                    \
+                case 0:                         \
+                case !!(expr):                  \
+                        ;                       \
+                }                               \
         } while (false)
+#endif
 
 #define PTR_TO_UINT(p) ((unsigned int) ((uintptr_t) (p)))
 #define UINT_TO_PTR(u) ((void*) ((uintptr_t) (u)))
@@ -149,6 +179,8 @@ static inline size_t ALIGN_TO(size_t l, size_t ali) {
 #define memzero(x,l) (memset((x), 0, (l)))
 #define zero(x) (memzero(&(x), sizeof(x)))
 
+#define CHAR_TO_STR(x) ((char[2]) { x, 0 })
+
 #define char_array_0(x) x[sizeof(x)-1] = 0;
 
 #define IOVEC_SET_STRING(i, s)                  \
@@ -187,6 +219,66 @@ static inline size_t IOVEC_INCREMENT(struct iovec *i, unsigned n, size_t k) {
         return k;
 }
 
-#include "log.h"
+#define VA_FORMAT_ADVANCE(format, ap)                                   \
+do {                                                                    \
+        int _argtypes[128];                                             \
+        size_t _i, _k;                                                  \
+        _k = parse_printf_format((format), ELEMENTSOF(_argtypes), _argtypes); \
+        assert(_k < ELEMENTSOF(_argtypes));                             \
+        for (_i = 0; _i < _k; _i++) {                                   \
+                if (_argtypes[_i] & PA_FLAG_PTR)  {                     \
+                        (void) va_arg(ap, void*);                       \
+                        continue;                                       \
+                }                                                       \
+                                                                        \
+                switch (_argtypes[_i]) {                                \
+                case PA_INT:                                            \
+                case PA_INT|PA_FLAG_SHORT:                              \
+                case PA_CHAR:                                           \
+                        (void) va_arg(ap, int);                         \
+                        break;                                          \
+                case PA_INT|PA_FLAG_LONG:                               \
+                        (void) va_arg(ap, long int);                    \
+                        break;                                          \
+                case PA_INT|PA_FLAG_LONG_LONG:                          \
+                        (void) va_arg(ap, long long int);               \
+                        break;                                          \
+                case PA_WCHAR:                                          \
+                        (void) va_arg(ap, wchar_t);                     \
+                        break;                                          \
+                case PA_WSTRING:                                        \
+                case PA_STRING:                                         \
+                case PA_POINTER:                                        \
+                        (void) va_arg(ap, void*);                       \
+                        break;                                          \
+                case PA_FLOAT:                                          \
+                case PA_DOUBLE:                                         \
+                        (void) va_arg(ap, double);                      \
+                        break;                                          \
+                case PA_DOUBLE|PA_FLAG_LONG_DOUBLE:                     \
+                        (void) va_arg(ap, long double);                 \
+                        break;                                          \
+                default:                                                \
+                        assert_not_reached("Unknown format string argument."); \
+                }                                                       \
+        }                                                               \
+} while(false)
+
+ /* Because statfs.t_type can be int on some architecures, we have to cast
+  * the const magic to the type, otherwise the compiler warns about
+  * signed/unsigned comparison, because the magic can be 32 bit unsigned.
+ */
+#define F_TYPE_CMP(a, b) (a == (typeof(a)) b)
 
-#endif
+
+/* 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. */
+
+#define DECIMAL_STR_MAX(type)                                           \
+        (1+(sizeof(type) <= 1 ? 3 :                                     \
+            sizeof(type) <= 2 ? 5 :                                     \
+            sizeof(type) <= 4 ? 10 :                                    \
+            sizeof(type) <= 8 ? 20 : sizeof(int[-2*(sizeof(type) > 8)])))
+
+#include "log.h"