Mpersify parsers of struct stat and struct stat64
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.
2016-08-24 03:29:40 +03:00
/*
* Copyright ( c ) 1991 , 1992 Paul Kranenburg < pk @ cs . few . eur . nl >
* Copyright ( c ) 1993 Branko Lankester < branko @ hacktic . nl >
* Copyright ( c ) 1993 , 1994 , 1995 , 1996 Rick Sladkey < jrs @ world . std . com >
* Copyright ( c ) 1996 - 1999 Wichert Akkerman < wichert @ cistron . nl >
* Copyright ( c ) 2005 - 2015 Dmitry V . Levin < ldv @ altlinux . org >
* All rights reserved .
*
* Redistribution and use in source and binary forms , with or without
* modification , are permitted provided that the following conditions
* are met :
* 1. Redistributions of source code must retain the above copyright
* notice , this list of conditions and the following disclaimer .
* 2. Redistributions in binary form must reproduce the above copyright
* notice , this list of conditions and the following disclaimer in the
* documentation and / or other materials provided with the distribution .
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission .
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ` ` AS IS ' ' AND ANY EXPRESS OR
* IMPLIED WARRANTIES , INCLUDING , BUT NOT LIMITED TO , THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED .
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT , INDIRECT ,
* INCIDENTAL , SPECIAL , EXEMPLARY , OR CONSEQUENTIAL DAMAGES ( INCLUDING , BUT
* NOT LIMITED TO , PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES ; LOSS OF USE ,
* DATA , OR PROFITS ; OR BUSINESS INTERRUPTION ) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY , WHETHER IN CONTRACT , STRICT LIABILITY , OR TORT
* ( INCLUDING NEGLIGENCE OR OTHERWISE ) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE , EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE .
*/
# include "defs.h"
# include "asm_stat.h"
# include "stat.h"
# ifdef HAVE_STRUCT___OLD_KERNEL_STAT
static void
2016-12-26 13:26:03 +03:00
print_old_kernel_stat ( struct tcb * const tcp , const kernel_ulong_t addr )
Mpersify parsers of struct stat and struct stat64
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.
2016-08-24 03:29:40 +03:00
{
struct __old_kernel_stat buf ;
if ( umove_or_printaddr ( tcp , addr , & buf ) )
return ;
struct strace_stat st = {
. dev = zero_extend_signed_to_ull ( buf . st_dev ) ,
. ino = zero_extend_signed_to_ull ( buf . st_ino ) ,
. rdev = zero_extend_signed_to_ull ( buf . st_rdev ) ,
. size = zero_extend_signed_to_ull ( buf . st_size ) ,
. mode = zero_extend_signed_to_ull ( buf . st_mode ) ,
. nlink = zero_extend_signed_to_ull ( buf . st_nlink ) ,
. uid = zero_extend_signed_to_ull ( buf . st_uid ) ,
. gid = zero_extend_signed_to_ull ( buf . st_gid ) ,
. atime = sign_extend_unsigned_to_ll ( buf . st_atime ) ,
. ctime = sign_extend_unsigned_to_ll ( buf . st_ctime ) ,
. mtime = sign_extend_unsigned_to_ll ( buf . st_mtime )
} ;
print_struct_stat ( tcp , & st ) ;
}
SYS_FUNC ( oldstat )
{
if ( entering ( tcp ) ) {
printpath ( tcp , tcp - > u_arg [ 0 ] ) ;
tprints ( " , " ) ;
} else {
print_old_kernel_stat ( tcp , tcp - > u_arg [ 1 ] ) ;
}
return 0 ;
}
SYS_FUNC ( oldfstat )
{
if ( entering ( tcp ) ) {
printfd ( tcp , tcp - > u_arg [ 0 ] ) ;
tprints ( " , " ) ;
} else {
print_old_kernel_stat ( tcp , tcp - > u_arg [ 1 ] ) ;
}
return 0 ;
}
# endif /* HAVE_STRUCT___OLD_KERNEL_STAT */