1 | // SPDX-License-Identifier: GPL-2.0 |
2 | #include "demangle-cxx.h" |
3 | #include <stdlib.h> |
4 | #include <string.h> |
5 | #include <linux/compiler.h> |
6 | |
7 | #ifdef HAVE_LIBBFD_SUPPORT |
8 | #define PACKAGE 'perf' |
9 | #include <bfd.h> |
10 | #endif |
11 | |
12 | #ifdef HAVE_CXA_DEMANGLE_SUPPORT |
13 | #include <cxxabi.h> |
14 | #endif |
15 | |
16 | #if defined(HAVE_LIBBFD_SUPPORT) || defined(HAVE_CPLUS_DEMANGLE_SUPPORT) |
17 | #ifndef DMGL_PARAMS |
18 | #define DMGL_PARAMS (1 << 0) /* Include function args */ |
19 | #define DMGL_ANSI (1 << 1) /* Include const, volatile, etc */ |
20 | #endif |
21 | #endif |
22 | |
23 | /* |
24 | * Demangle C++ function signature |
25 | * |
26 | * Note: caller is responsible for freeing demangled string |
27 | */ |
28 | extern "C" |
29 | char *cxx_demangle_sym(const char *str, bool params __maybe_unused, |
30 | bool modifiers __maybe_unused) |
31 | { |
32 | #ifdef HAVE_LIBBFD_SUPPORT |
33 | int flags = (params ? DMGL_PARAMS : 0) | (modifiers ? DMGL_ANSI : 0); |
34 | |
35 | return bfd_demangle(NULL, str, flags); |
36 | #elif defined(HAVE_CPLUS_DEMANGLE_SUPPORT) |
37 | int flags = (params ? DMGL_PARAMS : 0) | (modifiers ? DMGL_ANSI : 0); |
38 | |
39 | return cplus_demangle(str, flags); |
40 | #elif defined(HAVE_CXA_DEMANGLE_SUPPORT) |
41 | char *output; |
42 | int status; |
43 | |
44 | output = abi::__cxa_demangle(str, /*output_buffer=*/NULL, /*length=*/NULL, &status); |
45 | return output; |
46 | #else |
47 | return NULL; |
48 | #endif |
49 | } |
50 | |