Expose install_fatal_error_handler() through the C API.

[oota-llvm.git] / include / llvm-c / lto.h

diff --git a/include/llvm-c/lto.h b/include/llvm-c/lto.h
index 74915c0006f74a0c1eec035d248c18b47f18b49b..85d5439ec9449bfff36b2740183f99d3d708a831 100644 (file)
--- a/include/llvm-c/lto.h
+++ b/include/llvm-c/lto.h
@@ -13,12 +13,14 @@
 |*                                                                            *|
 \*===----------------------------------------------------------------------===*/
 
-#ifndef LTO_H
-#define LTO_H  1
+#ifndef LLVM_C_LTO_H
+#define LLVM_C_LTO_H
 
+#ifndef __cplusplus
 #include <stdbool.h>
+#endif
 #include <stddef.h>
-#include <unistd.h>
+#include <sys/types.h>
 
 /**
  * @defgroup LLVMCLTO LTO
@@ -27,7 +29,7 @@
  * @{
  */
 
-#define LTO_API_VERSION 4
+#define LTO_API_VERSION 5
 
 typedef enum {
     LTO_SYMBOL_ALIGNMENT_MASK              = 0x0000001F, /* log2 of alignment */
@@ -251,13 +253,21 @@ lto_codegen_set_assembler_args(lto_code_gen_t cg, const char **args,
                                int nargs);
 
 /**
- * Adds to a list of all global symbols that must exist in the final
- * generated code.  If a function is not listed, it might be
- * inlined into every usage and optimized away.
+ * Tells LTO optimization passes that this symbol must be preserved
+ * because it is referenced by native code or a command line option.
  */
 extern void
 lto_codegen_add_must_preserve_symbol(lto_code_gen_t cg, const char* symbol);
 
+
+/**
+ * Tells LTO optimization passes that a dynamic shared library is being
+ * built and this symbol may be exported. Unless IR semantics allow the symbol
+ * to be made local to the library, it should remain so it can be exported by
+ * the shared library.
+ */
+extern void lto_codegen_add_dso_symbol(lto_code_gen_t cg, const char *symbol);
+
 /**
  * Writes a new object file at the specified path that contains the
  * merged contents of all modules added so far.