X-Git-Url: https://git.lttng.org/?a=blobdiff_plain;f=src%2Fcommon%2Fmacros.h;h=99d4fb31f600fc2776348623e1821b0f76fba1b9;hb=d22ad5f818289bb10faa814c2ecef071ec0c2c67;hp=33ada7321801a14b438a27dca246ec8fbfb0c897;hpb=eac6ee118d39b8fd835c9afa1a1e2b6ff70c7eb6;p=lttng-tools.git

diff --git a/src/common/macros.h b/src/common/macros.h
index 33ada7321..99d4fb31f 100644
--- a/src/common/macros.h
+++ b/src/common/macros.h
@@ -1,19 +1,9 @@
 /*
- * Copyright (C) 2011 - David Goulet <david.goulet@polymtl.ca>
- *                      Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
+ * Copyright (C) 2011 David Goulet <david.goulet@polymtl.ca>
+ * Copyright (C) 2011 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
  *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License, version 2 only,
- * as published by the Free Software Foundation.
+ * SPDX-License-Identifier: GPL-2.0-only
  *
- * This program 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 General Public License for
- * more details.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  */
 
 #ifndef _MACROS_H
@@ -67,41 +57,42 @@ void *zmalloc(size_t len)
 	})
 #endif
 
-#ifndef max
-#define max(a, b) ((a) > (b) ? (a) : (b))
+#ifndef LTTNG_PACKED
+#define LTTNG_PACKED __attribute__((__packed__))
 #endif
 
-#ifndef max_t
-#define max_t(type, a, b)	((type) max(a, b))
+#ifndef LTTNG_NO_SANITIZE_ADDRESS
+#if defined(__clang__) || defined (__GNUC__)
+#define LTTNG_NO_SANITIZE_ADDRESS __attribute__((no_sanitize_address))
+#else
+#define LTTNG_NO_SANITIZE_ADDRESS
 #endif
-
-#ifndef min
-#define min(a, b) ((a) < (b) ? (a) : (b))
 #endif
 
-#ifndef LTTNG_PACKED
-#define LTTNG_PACKED __attribute__((__packed__))
-#endif
+#define is_signed(type) (((type) -1) < (type) 1)
 
-/*
- * Align value to the next multiple of align. Returns val if it already is a
- * multiple of align. Align must be a power of two.
- */
-#define ALIGN_TO(value, align) ((value + (align - 1)) & ~(align - 1))
+#define member_sizeof(type, field)	sizeof(((type *) 0)->field)
 
-/*
- * LTTNG_HIDDEN: set the hidden attribute for internal functions
- * On Windows, symbols are local unless explicitly exported,
- * see https://gcc.gnu.org/wiki/Visibility
- */
-#if defined(_WIN32) || defined(__CYGWIN__)
-#define LTTNG_HIDDEN
+#define ASSERT_LOCKED(lock) LTTNG_ASSERT(pthread_mutex_trylock(&lock))
+
+/* Attribute suitable to tag functions as having printf()-like arguments. */
+#define ATTR_FORMAT_PRINTF(_string_index, _first_to_check) \
+	__attribute__((format(printf, _string_index, _first_to_check)))
+
+/* Macros used to ignore specific compiler diagnostics. */
+
+#define DIAGNOSTIC_PUSH _Pragma("GCC diagnostic push")
+#define DIAGNOSTIC_POP _Pragma("GCC diagnostic pop")
+
+#if defined(__clang__)
+  /* Clang */
+# define DIAGNOSTIC_IGNORE_SUGGEST_ATTRIBUTE_FORMAT
 #else
-#define LTTNG_HIDDEN __attribute__((visibility("hidden")))
+  /* GCC */
+# define DIAGNOSTIC_IGNORE_SUGGEST_ATTRIBUTE_FORMAT \
+	_Pragma("GCC diagnostic ignored \"-Wsuggest-attribute=format\"")
 #endif
 
-#define member_sizeof(type, field)	sizeof(((type *) 0)->field)
-
 /*
  * lttng_strncpy returns 0 on success, or nonzero on failure.
  * It checks that the @src string fits into @dst_len before performing
@@ -120,4 +111,15 @@ int lttng_strncpy(char *dst, const char *src, size_t dst_len)
 	return 0;
 }
 
+#ifdef NDEBUG
+/*
+* Force usage of the assertion condition to prevent unused variable warnings
+* when `assert()` are disabled by the `NDEBUG` definition.
+*/
+# define LTTNG_ASSERT(_cond) ((void) sizeof((void) (_cond), 0))
+#else
+# include <assert.h>
+# define LTTNG_ASSERT(_cond) assert(_cond)
+#endif
+
 #endif /* _MACROS_H */