root/tools/perf/util/libunwind/arm64.c

   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;