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There was a runtime error in systems without large file support. Call
fseek(fd, 4096, SEEK_SET) has been failing with EINVAL, though it was
succeeding for offset = 4092. This has been happening because llseek system
call accepts 64-bit value as an offset argument and lseek function has been
ordering 32-bits words that form this offset value, according to the
endianness. However this ordering to match endianness is not required,
because llseek doesn't accept one 64-bit offset argument, it accepts two
32-bit offset argument, then stitches them into one following its
endianness. As a result on little endian system, order of words has been
swapped two time: in libc and in kernel. Thus call to fseek with offset 4096
(0x1000) was doing a system call to llseek with offset 0x1000_0000_0000. I'm
not entirely sure why then offset = 4092 hasn't been failing then.
This patch removes malicious swap of words when calling llseek.
Signed-off-by: Anton Kolesov <Anton.Kolesov@synopsys.com>
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
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With Busybox and uClibc - both built w/o LFS, this caused ash to be
completely broken, as lseek was simply returning error.
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
Cc: Markos Chandras <markos.chandras@imgtec.com>
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
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Signed-off-by: Markos Chandras <markos.chandras@imgtec.com>
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
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As noted by Florian Fainelli:
LD libpthread-0.9.34-git.so
libpthread/linuxthreads.old/libpthread_so.a(wrapsyscall.oS): In function `fcntl64':
wrapsyscall.c:(.text+0xd8): undefined reference to `__libc_fcntl64'
libpthread/linuxthreads.old/libpthread_so.a(wrapsyscall.oS): In function `lseek64':
wrapsyscall.c:(.text+0x190): undefined reference to `__libc_lseek64'
libpthread/linuxthreads.old/libpthread_so.a(wrapsyscall.oS): In function `pread64':
wrapsyscall.c:(.text+0x39c): undefined reference to `__libc_pread64'
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
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In llseek.c, we already allow both variants; the same needs to be done here
to avoid duplicate definitions of lseek64_nocancel.
Signed-off-by: Bernd Schmidt <bernds@codesourcery.com>
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LT_OLD provides cancellable versions, do it for all THREADS.
llseek.c: use newly added macros for offset handling.
Add a comment about endianness issue around offset.
Compile llseek.c only on 32bit archs.
Provide aliases for 64bit archs or if syscall is not available.
Signed-off-by: Peter S. Mazinger <ps.m@gmx.net>
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
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Signed-off-by: Peter S. Mazinger <ps.m@gmx.net>
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
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Now they are only enabled if linuxthreads.old are selected.
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__libc_accept __libc_close __libc_connect __libc_creat __libc_creat64
__libc_fsync __libc_lseek __libc_lseek64 __libc_msync __libc_nanosleep
__libc_open __libc_open64 __libc_pause __libc_read __libc_readv
__libc_recv __libc_recvfrom __libc_recvmsg
__libc_send __libc_sendmsg __libc_sendto
__libc_tcdrain __libc_wait __libc_waitpid __libc_write __libc_writev
They were removed from glibc 1 May 2004:
http://sources.redhat.com/ml/libc-hacker/2004-05/msg00001.html
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Appears to build fine (several .configs tried)
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applications stop using _syscall#() and use syscall() instead. Cleanup
internal handling of syscall includes to use the correct header file.
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missing headers, other jump relocs removed
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-Erik
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