xref: /linux/tools/perf/util/libunwind/arm64.c (revision 52338415)
1 // SPDX-License-Identifier: GPL-2.0
2 /*
3  * This file setups defines to compile arch specific binary from the
4  * generic one.
5  *
6  * The function 'LIBUNWIND__ARCH_REG_ID' name is set according to arch
7  * name and the defination of this function is included directly from
8  * 'arch/arm64/util/unwind-libunwind.c', to make sure that this function
9  * is defined no matter what arch the host is.
10  *
11  * Finally, the arch specific unwind methods are exported which will
12  * be assigned to each arm64 thread.
13  */
14 
15 #define REMOTE_UNWIND_LIBUNWIND
16 
17 /* Define arch specific functions & regs for libunwind, should be
18  * defined before including "unwind.h"
19  */
20 #define LIBUNWIND__ARCH_REG_ID(regnum) libunwind__arm64_reg_id(regnum)
21 #define LIBUNWIND__ARCH_REG_IP PERF_REG_ARM64_PC
22 #define LIBUNWIND__ARCH_REG_SP PERF_REG_ARM64_SP
23 
24 #include "unwind.h"
25 #include "libunwind-aarch64.h"
26 #include <../../../../arch/arm64/include/uapi/asm/perf_regs.h>
27 #include "../../arch/arm64/util/unwind-libunwind.c"
28 
29 /* NO_LIBUNWIND_DEBUG_FRAME is a feature flag for local libunwind,
30  * assign NO_LIBUNWIND_DEBUG_FRAME_AARCH64 to it for compiling arm64
31  * unwind methods.
32  */
33 #undef NO_LIBUNWIND_DEBUG_FRAME
34 #ifdef NO_LIBUNWIND_DEBUG_FRAME_AARCH64
35 #define NO_LIBUNWIND_DEBUG_FRAME
36 #endif
37 #include "util/unwind-libunwind-local.c"
38 
39 struct unwind_libunwind_ops *
40 arm64_unwind_libunwind_ops = &_unwind_libunwind_ops;
41