Dmitry V. Levin
a7c4ee41ff
On many architectures that support multiple personalities, struct stat differ between personalities. While old code could handle these differences, there are some architectures, e.g. sparc64, that also have different struct stat64. Rewrite parsers using mpers functionality to fix these issues. * fetch_struct_stat.c: New file. * fetch_struct_stat64.c: Likewise. * print_struct_stat.c: Likewise. * oldstat.c: Likewise. * stat.c: Likewise. * stat.h: Likewise. * stat64.c: Likewise. * file.c: Remove. * printstat.h: Likewise. * linux/aarch64/stat32.h: Likewise. * linux/powerpc64/stat32.h: Likewise. * linux/riscv/stat32.h: Likewise. * linux/sparc64/stat32.h: Likewise. * linux/tile/stat32.h: Likewise. * linux/x32/stat32.h: Likewise. * linux/x86_64/stat32.h: Likewise. * Makefile.am (strace_SOURCES): Add fetch_struct_stat.c, fetch_struct_stat64.c, print_struct_stat.c, oldstat.c, stat.c, stat.h, and stat64.c. Remove file.c, printstat.h, linux/aarch64/stat32.h, linux/powerpc64/stat32.h, linux/riscv/stat32.h, linux/sparc64/stat32.h, linux/tile/stat32.h, linux/x32/stat32.h, and linux/x86_64/stat32.h. * configure.ac (AC_CHECK_MEMBERS): Add struct stat64.st_mtime_nsec. * defs.h (struct strace_stat): New declaration. (print_struct_stat): New prototype. * linux/dummy.h (sys_fstatat64): Remove.
103 lines
3.6 KiB
C
103 lines
3.6 KiB
C
/*
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* Copyright (c) 2014-2016 Dmitry V. Levin <ldv@altlinux.org>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "defs.h"
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#include DEF_MPERS_TYPE(struct_stat)
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#include "asm_stat.h"
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#if defined MPERS_IS_m32
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# undef HAVE_STRUCT_STAT
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# undef HAVE_STRUCT_STAT_ST_MTIME_NSEC
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# ifdef HAVE_M32_STRUCT_STAT
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# define HAVE_STRUCT_STAT 1
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# ifdef HAVE_M32_STRUCT_STAT_ST_MTIME_NSEC
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# define HAVE_STRUCT_STAT_ST_MTIME_NSEC 1
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# endif /* HAVE_M32_STRUCT_STAT_ST_MTIME_NSEC */
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# endif /* HAVE_M32_STRUCT_STAT */
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#elif defined MPERS_IS_mx32
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# undef HAVE_STRUCT_STAT
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# undef HAVE_STRUCT_STAT_ST_MTIME_NSEC
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# ifdef HAVE_MX32_STRUCT_STAT
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# define HAVE_STRUCT_STAT 1
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# ifdef HAVE_MX32_STRUCT_STAT_ST_MTIME_NSEC
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# define HAVE_STRUCT_STAT_ST_MTIME_NSEC 1
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# endif /* HAVE_MX32_STRUCT_STAT_ST_MTIME_NSEC */
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# endif /* HAVE_MX32_STRUCT_STAT */
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#else /* !MPERS_IS_m32 && !MPERS_IS_mx32 */
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# define HAVE_STRUCT_STAT 1
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#endif
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#ifndef HAVE_STRUCT_STAT
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struct stat {};
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#endif
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typedef struct stat struct_stat;
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#include MPERS_DEFS
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#include "stat.h"
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#ifdef HAVE_STRUCT_STAT_ST_MTIME_NSEC
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# define TIME_NSEC(arg) zero_extend_signed_to_ull(arg)
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#else
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# define TIME_NSEC(arg) 0
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#endif
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MPERS_PRINTER_DECL(bool, fetch_struct_stat,
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struct tcb *tcp, const unsigned long addr,
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struct strace_stat *const dst)
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{
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#ifdef HAVE_STRUCT_STAT
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struct_stat buf;
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if (umove_or_printaddr(tcp, addr, &buf))
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return false;
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dst->dev = zero_extend_signed_to_ull(buf.st_dev);
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dst->ino = zero_extend_signed_to_ull(buf.st_ino);
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dst->rdev = zero_extend_signed_to_ull(buf.st_rdev);
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dst->size = zero_extend_signed_to_ull(buf.st_size);
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dst->blocks = zero_extend_signed_to_ull(buf.st_blocks);
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dst->blksize = zero_extend_signed_to_ull(buf.st_blksize);
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dst->mode = zero_extend_signed_to_ull(buf.st_mode);
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dst->nlink = zero_extend_signed_to_ull(buf.st_nlink);
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dst->uid = zero_extend_signed_to_ull(buf.st_uid);
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dst->gid = zero_extend_signed_to_ull(buf.st_gid);
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dst->atime = sign_extend_unsigned_to_ll(buf.st_atime);
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dst->ctime = sign_extend_unsigned_to_ll(buf.st_ctime);
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dst->mtime = sign_extend_unsigned_to_ll(buf.st_mtime);
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dst->atime_nsec = TIME_NSEC(buf.st_atime_nsec);
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dst->ctime_nsec = TIME_NSEC(buf.st_ctime_nsec);
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dst->mtime_nsec = TIME_NSEC(buf.st_mtime_nsec);
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return true;
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#else /* !HAVE_STRUCT_STAT */
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printaddr(addr);
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return false;
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#endif
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}
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