1 /* SPDX-License-Identifier: GPL-2.0 */ 1
2 #ifndef __PERF_LLVM_C_HELPERS
3 #define __PERF_LLVM_C_HELPERS 1
4
5 /*
6 * Helpers to call into LLVM C++ code from C,
7 * C APIs.
8 */
9
10 #include <linux/compiler.h>
11
12 #ifdef __cplusplus
13 extern "C" {
14 #endif
15
16 struct dso;
17
18 struct llvm_a2l_frame {
19 char* filename;
20 char* funcname;
21 unsigned int line;
22 };
23
24 /*
25 * Implement addr2line() using libLLVM. LLVM i
26 * many of the linux/ headers cannot be includ
27 * so we need to make a little bridge code her
28 * convert the inline frame information from L
29 * and put them into a flat array given in inl
30 * is then responsible for taking that array a
31 * regular inline frame structures (which depe
32 *
33 * If the address could not be resolved, or an
34 * returns 0. Otherwise, returns the number of
35 * if the address was not part of an inlined f
36 * is set and the return code is nonzero, inli
37 * a newly allocated array with that length. T
38 * for freeing both the strings and the array
39 */
40 int llvm_addr2line(const char* dso_name,
41 u64 addr,
42 char** file,
43 unsigned int* line,
44 bool unwind_inlines,
45 struct llvm_a2l_frame** inl
46
47 /*
48 * Simple symbolizers for addresses; will conv
49 * 0x12345 to "func+0x123". Will return NULL i
50 *
51 * The returned value must be freed by the cal
52 */
53 char *llvm_name_for_code(struct dso *dso, cons
54 char *llvm_name_for_data(struct dso *dso, cons
55
56 #ifdef __cplusplus
57 }
58 #endif
59
60 #endif /* __PERF_LLVM_C_HELPERS */
61
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