1  /*
       2   * Copyright (c) 2014-2016 Dmitry V. Levin <ldv@strace.io>
       3   * Copyright (c) 2016-2021 The strace developers.
       4   * All rights reserved.
       5   *
       6   * SPDX-License-Identifier: LGPL-2.1-or-later
       7   */
       8  
       9  #include "defs.h"
      10  
      11  #include DEF_MPERS_TYPE(struct_stat64)
      12  
      13  #include "asm_stat.h"
      14  
      15  #if defined MPERS_IS_m32
      16  # undef HAVE_STRUCT_STAT64
      17  # undef HAVE_STRUCT_STAT64_ST_MTIME_NSEC
      18  # ifdef HAVE_M32_STRUCT_STAT64
      19  #  define HAVE_STRUCT_STAT64 1
      20  #  ifdef HAVE_M32_STRUCT_STAT64_ST_MTIME_NSEC
      21  #   define HAVE_STRUCT_STAT64_ST_MTIME_NSEC 1
      22  #  endif /* HAVE_M32_STRUCT_STAT64_ST_MTIME_NSEC */
      23  # endif /* HAVE_M32_STRUCT_STAT64 */
      24  #elif defined MPERS_IS_mx32
      25  # undef HAVE_STRUCT_STAT64
      26  # undef HAVE_STRUCT_STAT64_ST_MTIME_NSEC
      27  # ifdef HAVE_MX32_STRUCT_STAT64
      28  #  define HAVE_STRUCT_STAT64 1
      29  #  ifdef HAVE_MX32_STRUCT_STAT64_ST_MTIME_NSEC
      30  #   define HAVE_STRUCT_STAT64_ST_MTIME_NSEC 1
      31  #  endif /* HAVE_MX32_STRUCT_STAT64_ST_MTIME_NSEC */
      32  # endif /* HAVE_MX32_STRUCT_STAT64 */
      33  #endif /* MPERS_IS_m32 || MPERS_IS_mx32 */
      34  
      35  #ifndef HAVE_STRUCT_STAT64
      36  struct stat64 {};
      37  #endif
      38  
      39  typedef struct stat64 struct_stat64;
      40  
      41  #include MPERS_DEFS
      42  
      43  #include "stat.h"
      44  
      45  #ifdef HAVE_STRUCT_STAT64_ST_MTIME_NSEC
      46  # define TIME_NSEC(arg) zero_extend_signed_to_ull(arg)
      47  # define HAVE_NSEC true
      48  #else
      49  # define TIME_NSEC(arg) 0
      50  # define HAVE_NSEC false
      51  #endif
      52  
      53  MPERS_PRINTER_DECL(bool, fetch_struct_stat64,
      54  		   struct tcb *const tcp, const kernel_ulong_t addr,
      55  		   struct strace_stat *const dst)
      56  {
      57  #ifdef HAVE_STRUCT_STAT64
      58  	struct_stat64 buf;
      59  	if (umove_or_printaddr(tcp, addr, &buf))
      60  		return false;
      61  
      62  	dst->dev = zero_extend_signed_to_ull(buf.st_dev);
      63  	dst->ino = zero_extend_signed_to_ull(buf.st_ino);
      64  	dst->rdev = zero_extend_signed_to_ull(buf.st_rdev);
      65  	dst->size = zero_extend_signed_to_ull(buf.st_size);
      66  	dst->blocks = zero_extend_signed_to_ull(buf.st_blocks);
      67  	dst->blksize = zero_extend_signed_to_ull(buf.st_blksize);
      68  	dst->mode = zero_extend_signed_to_ull(buf.st_mode);
      69  	dst->nlink = zero_extend_signed_to_ull(buf.st_nlink);
      70  	dst->uid = zero_extend_signed_to_ull(buf.st_uid);
      71  	dst->gid = zero_extend_signed_to_ull(buf.st_gid);
      72  	dst->atime = sign_extend_unsigned_to_ll(buf.st_atime);
      73  	dst->ctime = sign_extend_unsigned_to_ll(buf.st_ctime);
      74  	dst->mtime = sign_extend_unsigned_to_ll(buf.st_mtime);
      75  	dst->atime_nsec = TIME_NSEC(buf.st_atime_nsec);
      76  	dst->ctime_nsec = TIME_NSEC(buf.st_ctime_nsec);
      77  	dst->mtime_nsec = TIME_NSEC(buf.st_mtime_nsec);
      78  	dst->has_nsec = HAVE_NSEC;
      79  	return true;
      80  #else /* !HAVE_STRUCT_STAT64 */
      81  	printaddr(addr);
      82  	return false;
      83  #endif
      84  }