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3 Commits

Author SHA1 Message Date
Adhemerval Zanella
4f40e6adc4 linux: Consolidate lxstat{64} 
The LFS support is implemented on lxstat64.c, instead of lxstat.c for
64-bit architectures.  The xstat.c implements the non-LFS and it is
a no-op for !XSTAT_IS_XSTAT64.

The generic non-LFS implementation handles two cases:

  1. New kABIs which uses generic pre 64-bit time Linux ABI (csky and
     nios): it issues __NR_fstat64 with AT_SYMLINK_NOFOLLOW plus handles
     the possible overflow off st_ino, st_size, or st_blocks.  It only
     handles _STAT_VER_KERNEL.

  2. Old KABIs with old non-LFS support (arm, i386, hppa, m68k,
     microblaze, s390, sh, powerpc, and sparc32).  For _STAT_VER_KERNEL
     it issues __NR_lstat, otherwise it isseus __NR_lstat64 and convert
     to non-LFS stat struct and handle possible overflows on st_ino,
     st_size, or st_blocks.

Also non-LFS mips is an outlier and it has its own implementation since
_STAT_VER_LINUX requires a different conversion function (it uses the
kernel_stat as the syscall argument since its exported ABI is different
than the kernel one for both non-LFS and LFS implementation).

The generic LFS implementation handles multiple cases:

  1. XSTAT_IS_XSTAT64 being 1:

    1.1. Old 64-bit kABI (ia64, powerpc64*, s390x, sparc64, x86_64): it
         issues __NR_lstat for _STAT_VER_KERNEL or _STAT_VER_LINUX.

    1.2. Old 64-bit kABI with defines __NR_lstat64 instead of __NR_lstat
         (sparc64): it issues __NR_lstat for _STAT_VER_KERNEL or
         __NR_lstat64 and convert to struct stat64.

    1.3. New kABIs which uses generic 64-bit Linux ABI (aarch64 and
         riscv64): it issues __NR_newfstatat with AT_SYMLINK_NOFOLLOW
	 and only for _STAT_VER_KERNEL.

    1.4. New 32-bit kABIs with only 64-bit time_t support (arc and
         riscv32): it issues __NR_statx and covert to struct stat64.

  2. Old ABIs with XSTAT_IS_XSTAT64 being 0:

    2.1. New kABIs which uses generic pre 64-bit time Linux ABI (csky
	 and nios2): it issues __NR_fstatat64 for _STAT_VER_KERNEL.

    2.2. Old kABIs with old non-LFS support (arm, i386, hppa, m68k,
	 microblaze, s390, sh, mips32, powerpc32, and sparc32): it
	 issues __NR_lstat64.

Also, two special cases requires specific LFS implementations:

  1. alpha: it requires to handle _STAT_VER_KERNEL64 to issue
     __NR_lstat64 and use the kernel_stat with __NR_lstat otherwise.

  2. mips64: as for non-LFS implementation its ABIs differ from
     glibc exported one, which requires a specific conversion
     function to handle the kernel_stat.

Checked with a build for all affected ABIs. I also checked on x86_64,
i686, powerpc, powerpc64le, sparcv9, sparc64, s390, and s390x.

Reviewed-by: Lukasz Majewski <lukma@denx.de>
 2020-09-11 14:35:15 -03:00
Ulrich Drepper
7fe1586f46 Update. 
2004-03-23  Jakub Jelinek  <jakub@redhat.com>

	* sysdeps/unix/sysv/linux/alpha/sysdep.h (__NR_pread, __NR_pwrite):
	Define to __NR_p{read,write}64 if not defined.
	* sysdeps/unix/sysv/linux/s390/s390-64/sysdep.h (__NR_pread,
	__NR_pwrite): Define to __NR_p{read,write}64 if not defined instead
	of defining it the other way around.
	* sysdeps/unix/sysv/linux/alpha/syscalls.list: Move common syscalls
	for 64bit arches to sysdeps/unix/sysv/linux/wordsize-64/syscalls.list.
	* sysdeps/unix/sysv/linux/s390/s390-64/syscalls.list: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc64/syscalls.list: Likewise.
	* sysdeps/unix/sysv/linux/ia64/syscalls.list: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/syscalls.list: Likewise.
	* sysdeps/unix/sysv/linux/alpha/pread64.c: Removed.
	* sysdeps/unix/sysv/linux/alpha/getrlimit64.c: Removed.
	* sysdeps/unix/sysv/linux/alpha/glob64.c: Removed.
	* sysdeps/unix/sysv/linux/alpha/truncate64.c: Removed.
	* sysdeps/unix/sysv/linux/alpha/xstat64.c: Removed.
	* sysdeps/unix/sysv/linux/alpha/pwrite64.c: Removed.
	* sysdeps/unix/sysv/linux/alpha/posix_fadvise.c: Removed.
	* sysdeps/unix/sysv/linux/alpha/mmap64.c: Removed.
	* sysdeps/unix/sysv/linux/alpha/fxstat64.c: Removed.
	* sysdeps/unix/sysv/linux/alpha/setrlimit64.c: Removed.
	* sysdeps/unix/sysv/linux/alpha/ftruncate64.c: Removed.
	* sysdeps/unix/sysv/linux/alpha/sendfile64.c: Removed.
	* sysdeps/unix/sysv/linux/alpha/lxstat64.c: Removed.
	* sysdeps/unix/sysv/linux/alpha/posix_fadvise64.c: Removed.
	* sysdeps/unix/sysv/linux/alpha/statfs64.c: Removed.
	* sysdeps/unix/sysv/linux/alpha/fstatfs64.c: Removed.
	* sysdeps/unix/sysv/linux/s390/s390-64/pread64.c: Removed.
	* sysdeps/unix/sysv/linux/s390/s390-64/getrlimit64.c: Removed.
	* sysdeps/unix/sysv/linux/s390/s390-64/glob64.c: Removed.
	* sysdeps/unix/sysv/linux/s390/s390-64/readdir64_r.c: Removed.
	* sysdeps/unix/sysv/linux/s390/s390-64/truncate64.c: Removed.
	* sysdeps/unix/sysv/linux/s390/s390-64/xstat64.c: Removed.
	* sysdeps/unix/sysv/linux/s390/s390-64/pwrite64.c: Removed.
	* sysdeps/unix/sysv/linux/s390/s390-64/getdents64.c: Removed.
	* sysdeps/unix/sysv/linux/s390/s390-64/readdir_r.c: Removed.
	* sysdeps/unix/sysv/linux/s390/s390-64/lxstat.c: Removed.
	* sysdeps/unix/sysv/linux/s390/s390-64/readdir.c: Removed.
	* sysdeps/unix/sysv/linux/s390/s390-64/posix_fadvise.c: Removed.
	* sysdeps/unix/sysv/linux/s390/s390-64/mmap64.c: Removed.
	* sysdeps/unix/sysv/linux/s390/s390-64/xstat.c: Removed.
	* sysdeps/unix/sysv/linux/s390/s390-64/fxstat64.c: Removed.
	* sysdeps/unix/sysv/linux/s390/s390-64/setrlimit64.c: Removed.
	* sysdeps/unix/sysv/linux/s390/s390-64/ftruncate64.c: Removed.
	* sysdeps/unix/sysv/linux/s390/s390-64/getdents.c: Removed.
	* sysdeps/unix/sysv/linux/s390/s390-64/lxstat64.c: Removed.
	* sysdeps/unix/sysv/linux/s390/s390-64/posix_fadvise64.c: Removed.
	* sysdeps/unix/sysv/linux/s390/s390-64/readdir64.c: Removed.
	* sysdeps/unix/sysv/linux/s390/s390-64/fxstat.c: Removed.
	* sysdeps/unix/sysv/linux/s390/s390-64/statfs64.c: Removed.
	* sysdeps/unix/sysv/linux/s390/s390-64/fstatfs64.c: Removed.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/glob64.c: Removed.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/truncate64.c: Removed.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/xstat64.c: Removed.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/posix_fadvise.c: Removed.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/fxstat64.c: Removed.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/ftruncate64.c: Removed.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/lxstat64.c: Removed.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/posix_fadvise64.c: Removed.
	* sysdeps/unix/sysv/linux/sparc/sparc64/pread64.c: Removed.
	* sysdeps/unix/sysv/linux/sparc/sparc64/getrlimit64.c: Removed.
	* sysdeps/unix/sysv/linux/sparc/sparc64/glob64.c: Removed.
	* sysdeps/unix/sysv/linux/sparc/sparc64/readdir64_r.c: Removed.
	* sysdeps/unix/sysv/linux/sparc/sparc64/truncate64.c: Removed.
	* sysdeps/unix/sysv/linux/sparc/sparc64/xstat64.c: Removed.
	* sysdeps/unix/sysv/linux/sparc/sparc64/pwrite64.c: Removed.
	* sysdeps/unix/sysv/linux/sparc/sparc64/getdents64.c: Removed.
	* sysdeps/unix/sysv/linux/sparc/sparc64/readdir_r.c: Removed.
	* sysdeps/unix/sysv/linux/sparc/sparc64/readdir.c: Removed.
	* sysdeps/unix/sysv/linux/sparc/sparc64/posix_fadvise.c: Removed.
	* sysdeps/unix/sysv/linux/sparc/sparc64/mmap64.c: Removed.
	* sysdeps/unix/sysv/linux/sparc/sparc64/fxstat64.c: Removed.
	* sysdeps/unix/sysv/linux/sparc/sparc64/setrlimit64.c: Removed.
	* sysdeps/unix/sysv/linux/sparc/sparc64/ftruncate64.c: Removed.
	* sysdeps/unix/sysv/linux/sparc/sparc64/sendfile64.c: Removed.
	* sysdeps/unix/sysv/linux/sparc/sparc64/getdents.c: Removed.
	* sysdeps/unix/sysv/linux/sparc/sparc64/lxstat64.c: Removed.
	* sysdeps/unix/sysv/linux/sparc/sparc64/posix_fadvise64.c: Removed.
	* sysdeps/unix/sysv/linux/sparc/sparc64/readdir64.c: Removed.
	* sysdeps/unix/sysv/linux/sparc/sparc64/statfs64.c: Removed.
	* sysdeps/unix/sysv/linux/sparc/sparc64/fstatfs64.c: Removed.
	* sysdeps/unix/sysv/linux/ia64/pread64.c: Removed.
	* sysdeps/unix/sysv/linux/ia64/getrlimit64.c: Removed.
	* sysdeps/unix/sysv/linux/ia64/glob64.c: Removed.
	* sysdeps/unix/sysv/linux/ia64/readdir64_r.c: Removed.
	* sysdeps/unix/sysv/linux/ia64/truncate64.c: Removed.
	* sysdeps/unix/sysv/linux/ia64/xstat64.c: Removed.
	* sysdeps/unix/sysv/linux/ia64/pwrite64.c: Removed.
	* sysdeps/unix/sysv/linux/ia64/getdents64.c: Removed.
	* sysdeps/unix/sysv/linux/ia64/readdir_r.c: Removed.
	* sysdeps/unix/sysv/linux/ia64/lxstat.c: Removed.
	* sysdeps/unix/sysv/linux/ia64/readdir.c: Removed.
	* sysdeps/unix/sysv/linux/ia64/posix_fadvise.c: Removed.
	* sysdeps/unix/sysv/linux/ia64/mmap64.c: Removed.
	* sysdeps/unix/sysv/linux/ia64/xstat.c: Removed.
	* sysdeps/unix/sysv/linux/ia64/fxstat64.c: Removed.
	* sysdeps/unix/sysv/linux/ia64/setrlimit64.c: Removed.
	* sysdeps/unix/sysv/linux/ia64/ftruncate64.c: Removed.
	* sysdeps/unix/sysv/linux/ia64/sendfile64.c: Removed.
	* sysdeps/unix/sysv/linux/ia64/getdents.c: Removed.
	* sysdeps/unix/sysv/linux/ia64/lxstat64.c: Removed.
	* sysdeps/unix/sysv/linux/ia64/posix_fadvise64.c: Removed.
	* sysdeps/unix/sysv/linux/ia64/readdir64.c: Removed.
	* sysdeps/unix/sysv/linux/ia64/fxstat.c: Removed.
	* sysdeps/unix/sysv/linux/ia64/statfs64.c: Removed.
	* sysdeps/unix/sysv/linux/ia64/fstatfs64.c: Removed.
	* sysdeps/unix/sysv/linux/x86_64/pread64.c: Removed.
	* sysdeps/unix/sysv/linux/x86_64/getrlimit64.c: Removed.
	* sysdeps/unix/sysv/linux/x86_64/glob64.c: Removed.
	* sysdeps/unix/sysv/linux/x86_64/readdir64_r.c: Removed.
	* sysdeps/unix/sysv/linux/x86_64/truncate64.c: Removed.
	* sysdeps/unix/sysv/linux/x86_64/xstat64.c: Removed.
	* sysdeps/unix/sysv/linux/x86_64/pwrite64.c: Removed.
	* sysdeps/unix/sysv/linux/x86_64/getdents64.c: Removed.
	* sysdeps/unix/sysv/linux/x86_64/readdir_r.c: Removed.
	* sysdeps/unix/sysv/linux/x86_64/lxstat.c: Removed.
	* sysdeps/unix/sysv/linux/x86_64/readdir.c: Removed.
	* sysdeps/unix/sysv/linux/x86_64/posix_fadvise.c: Removed.
	* sysdeps/unix/sysv/linux/x86_64/mmap64.c: Removed.
	* sysdeps/unix/sysv/linux/x86_64/xstat.c: Removed.
	* sysdeps/unix/sysv/linux/x86_64/fxstat64.c: Removed.
	* sysdeps/unix/sysv/linux/x86_64/setrlimit64.c: Removed.
	* sysdeps/unix/sysv/linux/x86_64/ftruncate64.c: Removed.
	* sysdeps/unix/sysv/linux/x86_64/sendfile64.c: Removed.
	* sysdeps/unix/sysv/linux/x86_64/getdents.c: Removed.
	* sysdeps/unix/sysv/linux/x86_64/lxstat64.c: Removed.
	* sysdeps/unix/sysv/linux/x86_64/posix_fadvise64.c: Removed.
	* sysdeps/unix/sysv/linux/x86_64/readdir64.c: Removed.
	* sysdeps/unix/sysv/linux/x86_64/fxstat.c: Removed.
	* sysdeps/unix/sysv/linux/x86_64/statfs64.c: Removed.
	* sysdeps/unix/sysv/linux/x86_64/fstatfs64.c: Removed.
	* sysdeps/unix/sysv/linux/alpha/Implies: New file.
	* sysdeps/unix/sysv/linux/alpha/getdents64.c: New file.
	* sysdeps/unix/sysv/linux/s390/s390-64/Implies: New file.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/Implies: New file.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/syscalls.list: New file.
	* sysdeps/unix/sysv/linux/sparc/sparc64/Implies: New file.
	* sysdeps/unix/sysv/linux/sparc/sparc64/lxstat.c: New file.
	* sysdeps/unix/sysv/linux/sparc/sparc64/xstat.c: New file.
	* sysdeps/unix/sysv/linux/sparc/sparc64/fxstat.c: New file.
	* sysdeps/unix/sysv/linux/wordsize-64/statvfs64.c: New file.
	* sysdeps/unix/sysv/linux/wordsize-64/fstatvfs64.c: New file.
	* sysdeps/unix/sysv/linux/wordsize-64/pread64.c: New file.
	* sysdeps/unix/sysv/linux/wordsize-64/fstatvfs.c: New file.
	* sysdeps/unix/sysv/linux/wordsize-64/getrlimit64.c: New file.
	* sysdeps/unix/sysv/linux/wordsize-64/glob64.c: New file.
	* sysdeps/unix/sysv/linux/wordsize-64/readdir64_r.c: New file.
	* sysdeps/unix/sysv/linux/wordsize-64/truncate64.c: New file.
	* sysdeps/unix/sysv/linux/wordsize-64/xstat64.c: New file.
	* sysdeps/unix/sysv/linux/wordsize-64/pwrite64.c: New file.
	* sysdeps/unix/sysv/linux/wordsize-64/getdents64.c: New file.
	* sysdeps/unix/sysv/linux/wordsize-64/readdir_r.c: New file.
	* sysdeps/unix/sysv/linux/wordsize-64/lxstat.c: New file.
	* sysdeps/unix/sysv/linux/wordsize-64/readdir.c: New file.
	* sysdeps/unix/sysv/linux/wordsize-64/posix_fadvise.c: New file.
	* sysdeps/unix/sysv/linux/wordsize-64/mmap64.c: New file.
	* sysdeps/unix/sysv/linux/wordsize-64/xstat.c: New file.
	* sysdeps/unix/sysv/linux/wordsize-64/fxstat64.c: New file.
	* sysdeps/unix/sysv/linux/wordsize-64/setrlimit64.c: New file.
	* sysdeps/unix/sysv/linux/wordsize-64/ftruncate64.c: New file.
	* sysdeps/unix/sysv/linux/wordsize-64/sendfile64.c: New file.
	* sysdeps/unix/sysv/linux/wordsize-64/getdents.c: New file.
	* sysdeps/unix/sysv/linux/wordsize-64/statvfs.c: New file.
	* sysdeps/unix/sysv/linux/wordsize-64/lxstat64.c: New file.
	* sysdeps/unix/sysv/linux/wordsize-64/posix_fadvise64.c: New file.
	* sysdeps/unix/sysv/linux/wordsize-64/readdir64.c: New file.
	* sysdeps/unix/sysv/linux/wordsize-64/syscalls.list: New file.
	* sysdeps/unix/sysv/linux/wordsize-64/fxstat.c: New file.
	* sysdeps/unix/sysv/linux/wordsize-64/statfs64.c: New file.
	* sysdeps/unix/sysv/linux/wordsize-64/fstatfs64.c: New file.
	* sysdeps/unix/sysv/linux/ia64/Implies: New file.
	* sysdeps/unix/sysv/linux/x86_64/Implies: New file.
 2004-03-24 00:06:13 +00:00
Ulrich Drepper
1cab544423 Update. 
1997-10-31 23:16  Ulrich Drepper  <drepper@cygnus.com>

	* posix/glob.c (glob): If calling glob_in_dir for a list which was
	generated by a glob call disable GLOB_ERR since there might be
	non-directories in the list (PR203).

	* posix/glob.h (GLOB_ONLYDIR): New flag.
	(__GLOB_FLAGS): Add GLOB_ONLYDIR.
	* posix/glob.c: Define HAVE_D_TYPE if _DIRENT_HAVE_D_TYPE is defined.
	(glob): Add GLOB_ONLYDIR to recursive call to match dirname.
	(glob_in_dir) [HAVE_D_TYPE]: While reading directory entries test
	whether they are directories if GLOB_ONLYDIR flag is given.
	* manual/pattern.texi: Document GLOB_ONLYDIR.

	* misc/Makefile (tests): Add tst-fdset.

	* sysdeps/i386/bits/select.h: Rewrite asm macros to be cleaner.

	* sysdeps/unix/sysv/linux/Dist: Add xstatconv.c.
	* sysdeps/unix/sysv/linux/alpha/Dist: Likewise.

	* time/strptime.c (strptime_internal): In %y format, regard years
	>= 69 as of twentieth century, all other as of twenty-first.

	* time/tzset.c: Correct typo and little optimization.

1997-10-31 16:01  Ulrich Drepper  <drepper@cygnus.com>

	* inet/getnetgrent.c: Allocate buffer dynamically if needed.
	Suggested by Joe Keane <jgk@jgk.org>.

1997-10-31  Andreas Jaeger  <aj@arthur.rhein-neckar.de>

	* io/ftw.h: Declare __ftw64_func_t and __nftw64_func_t only when
	__USE_FILE_OFFSET64 || __USE_LARGEFILE64 is true.

1997-10-30 05:47  Ulrich Drepper  <drepper@cygnus.com>

	* misc/mntent.c: Don't use statically allocated buffer.  Allocate
	it dynamically if necessary.
	* misc/efgcvt.c: Likewise.
	Patch by Joe Keane <jgk@jgk.org>.

	* misc/mntent.c: Allow freeing of allocated buffer in
	__libc_subfreeres.
	* misc/efgcvt.c: Likewise.

	* misc/efgcvt.c: Call correct reentrant functions.
	Use better values for MAXDIG.
	* misc/qefgcvt.c: Use better values for MAXDIG.

1997-10-29 18:48   Richard Henderson  <rth@cygnus.com>

	* sysdeps/unix/sysv/linux/Makefile [io]: Add xstatconv.
	* sysdeps/unix/sysv/linux/alpha/xstatconv.c: New file.  Convert
	between kernel_stat and the userland version indicated.
	* sysdeps/unix/sysv/linux/xstatconv.c: Likewise.
	* sysdeps/unix/sysv/linux/bits/stat.h: Define _STAT_VER_KERNEL.

	* sysdeps/unix/sysv/linux/fxstat.c: Defer to __xstat_conv.  Alias
	to __*xstat64 if requested.
	* sysdeps/unix/sysv/linux/lxstat.c: Likewise.
	* sysdeps/unix/sysv/linux/xstat.c: Likewise.

	* sysdeps/unix/sysv/linux/alpha/bits/stat.h: Add struct stat64.
	Increment _STAT_VER, and make struct stat the same.
	* sysdeps/unix/sysv/linux/alpha/bits/types.h: Add __ino64_t, and
	__off64_t.  Reorganize.
	* sysdeps/unix/sysv/linux/alpha/kernel_stat.h: Add struct glibc2_stat
	for backward compatibility.  Define XSTAT_IS_XSTAT64.

	* sysdeps/unix/sysv/linux/alpha/fxstat64.c: Empty file.
	* sysdeps/unix/sysv/linux/alpha/lxstat64.c: Likewise.
	* sysdeps/unix/sysv/linux/alpha/xstat64.c: Likewise.

	* sysdeps/unix/sysv/linux/alpha/bits/dirent.h (struct dirent): For
	consistency, force d_ino to use ino_t and supply padding.

1997-10-29 18:47  Richard Henderson  <rth@cygnus.com>

	* libio/iofopen.c: Correct weak_alias.
 1997-10-31 22:55:02 +00:00