forked from esyr-rh/strace
/
fetch_struct_stat.c
86 lines (75 loc) · 2.45 KB
/
fetch_struct_stat.c
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/*
* Copyright (c) 2014-2016 Dmitry V. Levin <ldv@altlinux.org>
* Copyright (c) 2016-2018 The strace developers.
* All rights reserved.
*
* SPDX-License-Identifier: LGPL-2.1-or-later
*/
#include "defs.h"
#include DEF_MPERS_TYPE(struct_stat)
#include "asm_stat.h"
#if defined MPERS_IS_m32
# undef HAVE_STRUCT_STAT
# undef HAVE_STRUCT_STAT_ST_MTIME_NSEC
# ifdef HAVE_M32_STRUCT_STAT
# define HAVE_STRUCT_STAT 1
# ifdef HAVE_M32_STRUCT_STAT_ST_MTIME_NSEC
# define HAVE_STRUCT_STAT_ST_MTIME_NSEC 1
# endif /* HAVE_M32_STRUCT_STAT_ST_MTIME_NSEC */
# endif /* HAVE_M32_STRUCT_STAT */
#elif defined MPERS_IS_mx32
# undef HAVE_STRUCT_STAT
# undef HAVE_STRUCT_STAT_ST_MTIME_NSEC
# ifdef HAVE_MX32_STRUCT_STAT
# define HAVE_STRUCT_STAT 1
# ifdef HAVE_MX32_STRUCT_STAT_ST_MTIME_NSEC
# define HAVE_STRUCT_STAT_ST_MTIME_NSEC 1
# endif /* HAVE_MX32_STRUCT_STAT_ST_MTIME_NSEC */
# endif /* HAVE_MX32_STRUCT_STAT */
#else /* !MPERS_IS_m32 && !MPERS_IS_mx32 */
# define HAVE_STRUCT_STAT 1
#endif
#ifndef HAVE_STRUCT_STAT
struct stat {};
#endif
typedef struct stat struct_stat;
#include MPERS_DEFS
#include "stat.h"
#ifdef HAVE_STRUCT_STAT_ST_MTIME_NSEC
# define TIME_NSEC(arg) zero_extend_signed_to_ull(arg)
# define HAVE_NSEC true
#else
# define TIME_NSEC(arg) 0
# define HAVE_NSEC false
#endif
MPERS_PRINTER_DECL(bool, fetch_struct_stat,
struct tcb *const tcp, const kernel_ulong_t addr,
struct strace_stat *const dst)
{
#ifdef HAVE_STRUCT_STAT
struct_stat buf;
if (umove_or_printaddr(tcp, addr, &buf))
return false;
dst->dev = zero_extend_signed_to_ull(buf.st_dev);
dst->ino = zero_extend_signed_to_ull(buf.st_ino);
dst->rdev = zero_extend_signed_to_ull(buf.st_rdev);
dst->size = zero_extend_signed_to_ull(buf.st_size);
dst->blocks = zero_extend_signed_to_ull(buf.st_blocks);
dst->blksize = zero_extend_signed_to_ull(buf.st_blksize);
dst->mode = zero_extend_signed_to_ull(buf.st_mode);
dst->nlink = zero_extend_signed_to_ull(buf.st_nlink);
dst->uid = zero_extend_signed_to_ull(buf.st_uid);
dst->gid = zero_extend_signed_to_ull(buf.st_gid);
dst->atime = sign_extend_unsigned_to_ll(buf.st_atime);
dst->ctime = sign_extend_unsigned_to_ll(buf.st_ctime);
dst->mtime = sign_extend_unsigned_to_ll(buf.st_mtime);
dst->atime_nsec = TIME_NSEC(buf.st_atime_nsec);
dst->ctime_nsec = TIME_NSEC(buf.st_ctime_nsec);
dst->mtime_nsec = TIME_NSEC(buf.st_mtime_nsec);
dst->has_nsec = HAVE_NSEC;
return true;
#else /* !HAVE_STRUCT_STAT */
printaddr(addr);
return false;
#endif
}