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Pods/CocoaDebug/Sources/fishhook/_fishhook.h

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+// Copyright (c) 2013, Facebook, Inc.
+// All rights reserved.
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are met:
+//   * Redistributions of source code must retain the above copyright notice,
+//     this list of conditions and the following disclaimer.
+//   * Redistributions in binary form must reproduce the above copyright notice,
+//     this list of conditions and the following disclaimer in the documentation
+//     and/or other materials provided with the distribution.
+//   * Neither the name Facebook nor the names of its contributors may be used to
+//     endorse or promote products derived from this software without specific
+//     prior written permission.
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+// DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+// DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+// SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+// CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+#ifndef fishhook_h
+#define fishhook_h
+
+#include <stddef.h>
+#include <stdint.h>
+
+#if !defined(FISHHOOK_EXPORT)
+#define FISHHOOK_VISIBILITY __attribute__((visibility("hidden")))
+#else
+#define FISHHOOK_VISIBILITY __attribute__((visibility("default")))
+#endif
+
+#ifdef __cplusplus
+extern "C" {
+#endif //__cplusplus
+
+/*
+ * A structure representing a particular intended rebinding from a symbol
+ * name to its replacement
+ */
+struct rebinding {
+  const char *name;
+  void *replacement;
+  void **replaced;
+};
+
+/*
+ * For each rebinding in rebindings, rebinds references to external, indirect
+ * symbols with the specified name to instead point at replacement for each
+ * image in the calling process as well as for all future images that are loaded
+ * by the process. If rebind_functions is called more than once, the symbols to
+ * rebind are added to the existing list of rebindings, and if a given symbol
+ * is rebound more than once, the later rebinding will take precedence.
+ */
+FISHHOOK_VISIBILITY
+int rebind_symbols(struct rebinding rebindings[], size_t rebindings_nel);
+
+/*
+ * Rebinds as above, but only in the specified image. The header should point
+ * to the mach-o header, the slide should be the slide offset. Others as above.
+ */
+FISHHOOK_VISIBILITY
+int rebind_symbols_image(void *header,
+                         intptr_t slide,
+                         struct rebinding rebindings[],
+                         size_t rebindings_nel);
+
+#ifdef __cplusplus
+}
+#endif //__cplusplus
+
+#endif //fishhook_h
+