1/* ===-- assembly.h - libUnwind assembler support macros -------------------===
2 *
3 *                     The LLVM Compiler Infrastructure
4 *
5 * This file is dual licensed under the MIT and the University of Illinois Open
6 * Source Licenses. See LICENSE.TXT for details.
7 *
8 * ===----------------------------------------------------------------------===
9 *
10 * This file defines macros for use in libUnwind assembler source.
11 * This file is not part of the interface of this library.
12 *
13 * ===----------------------------------------------------------------------===
14 */
15
16#ifndef UNWIND_ASSEMBLY_H
17#define UNWIND_ASSEMBLY_H
18
19#if defined(__POWERPC__) || defined(__powerpc__) || defined(__ppc__)
20#define SEPARATOR @
21#elif defined(__arm64__)
22#define SEPARATOR %%
23#else
24#define SEPARATOR ;
25#endif
26
27#if defined(__APPLE__)
28#define HIDDEN_DIRECTIVE .private_extern
29#else
30#define HIDDEN_DIRECTIVE .hidden
31#endif
32
33#define GLUE2(a, b) a ## b
34#define GLUE(a, b) GLUE2(a, b)
35#define SYMBOL_NAME(name) GLUE(__USER_LABEL_PREFIX__, name)
36
37#define DEFINE_LIBUNWIND_FUNCTION(name)                   \
38  .globl SYMBOL_NAME(name) SEPARATOR                      \
39  SYMBOL_NAME(name):
40
41#define DEFINE_LIBUNWIND_PRIVATE_FUNCTION(name)           \
42  .globl SYMBOL_NAME(name) SEPARATOR                      \
43  HIDDEN_DIRECTIVE SYMBOL_NAME(name) SEPARATOR            \
44  SYMBOL_NAME(name):
45
46#endif /* UNWIND_ASSEMBLY_H */
47