Remove stat wrapper functions, move them to exported symbols
This patch removes the stat, stat64, lstat, lstat64, fstat, fstat64,
fstatat, and fstatat64 static wrapper and add the symbol on the libc
with the expected names.
Both the prototypes of the internal symbol linked by the static
wrappers and the inline redirectors are also removed from the installed
sys/stat.h header file. The wrapper implementation license LGPL
exception is also removed since it is no longer statically linked to
binaries.
Internally the _STAT_VER* definitions are moved to a arch-specific
xstatver.h file. The internal defines that redirects internals
{f}stat{at} to their {f}xstat{at} counterparts are removed for Linux
(!NO_RTLD_HIDDEN). Hurd still requires them since {f}stat{at} pulls
extra objects that makes the loader build fail otherwise (I haven't
dig into why exactly).
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>
2020-07-16 14:06:51 +00:00
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/* Versions of the 'struct stat' data structure used in compatibility xstat
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functions. */
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#define _STAT_VER_KERNEL 0
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#define _STAT_VER_GLIBC2 1
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#define _STAT_VER_GLIBC2_1 2
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#define _STAT_VER_KERNEL64 3
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#define _STAT_VER_GLIBC2_3_4 3
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#define _STAT_VER_LINUX 3
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#define _STAT_VER _STAT_VER_LINUX
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2020-07-16 19:46:52 +00:00
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/* Versions of the 'xmknod' interface used in compatibility xmknod
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functions. */
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#define _MKNOD_VER_LINUX 0
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#define _MKNOD_VER _MKNOD_VER_LINUX
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