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/x86/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 x86 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__x86_reg_id(regnum)
21#define LIBUNWIND__ARCH_REG_IP PERF_REG_X86_IP
22#define LIBUNWIND__ARCH_REG_SP PERF_REG_X86_SP
23
24#include "unwind.h"
25#include "libunwind-x86.h"
26#include <../../../../arch/x86/include/uapi/asm/perf_regs.h>
27
28/* HAVE_ARCH_X86_64_SUPPORT is used in'arch/x86/util/unwind-libunwind.c'
29 * for x86_32, we undef it to compile code for x86_32 only.
30 */
31#undef HAVE_ARCH_X86_64_SUPPORT
32#include "../../arch/x86/util/unwind-libunwind.c"
33
34/* Explicitly define NO_LIBUNWIND_DEBUG_FRAME, because non-ARM has no
35 * dwarf_find_debug_frame() function.
36 */
37#ifndef NO_LIBUNWIND_DEBUG_FRAME
38#define NO_LIBUNWIND_DEBUG_FRAME
39#endif
40#include "util/unwind-libunwind-local.c"
41
42struct unwind_libunwind_ops *
43x86_32_unwind_libunwind_ops = &_unwind_libunwind_ops;
44