linux/tools/perf/util/libunwind/arm64.c
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   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 definition 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
  39struct unwind_libunwind_ops *
  40arm64_unwind_libunwind_ops = &_unwind_libunwind_ops;
  41