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glibc/sysdeps/unix/sysv/linux/generic
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Adhemerval Zanella af5fdf5a35 Consolidate pwritev/pwritev64 implementations 
This patch consolidates all the pwritev{64} implementation for Linux
in only one (sysdeps/unix/sysv/linux/pwritev{64}.c).  It also removes the
syscall from the auto-generation using assembly macros.

It was based on previous pwrite/pwrite64 consolidation patch.  The new macro
SYSCALL_LL{64} is used to handle the offset argument and alias is created
for __ASSUME_OFF_DIFF_OFF64 in case of pread64.

Checked on x86_64, i386, aarch64, and powerpc64le.

	* misc/Makefile (CFLAGS-pwritev.c): New variable: add cancellation
	required flags.
	(CFLAGS-pwritev64.c): Likewise.
	* sysdeps/unix/sysv/linux/generic/wordsize-32/pwritev.c: Remove file.
	* sysdeps/unix/sysv/linux/generic/wordsize-32/pwritev64.c: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips64/n64/pwritev64.c: Likewise.
	* sysdeps/unix/sysv/linux/wordsize-64/pwritev.c: Likewise.
	* sysdeps/unix/sysv/linux/wordsize-64/pwritev64.: Likwise.
	* sysdeps/unix/sysv/linux/x86_64/x32/syscalls.list (pwritev): Remove
	syscall from auto-generation.
	* sysdeps/unix/sysv/linux/pwritev.c: Rewrite implementation.
	[WORDSIZE == 64] (pwritev64): Remove macro.
	[!PWRITEV] (PWRITEV): Likewise.
	[!PWRITEV] (PWRITEV_REPLACEMENT): Likewise.
	[!PWRITEV] (PWRITE): Likewise.
	[!PWRITEV] (OFF_T): Likewise.
	[!__ASSUME_PWRITEV] (PWRITEV_REPLACEMENT): Likewise.
	(LO_HI_LONG): Remove macro.
	[__WORDSIZE != 64 || __ASSUME_OFF_DIFF_OFF64] (pwritev): Add function.
	* sysdeps/unix/sysv/linux/pwritev64.c: Rewrite implementation.
	(PWRITEV): Remove macro.
	(PWRITEV_REPLACEMENTE): Likewise.
	(PWRITE): Likewise.
	(OFF_T): Likewise.
	(pwritev64): New function.
	* nptl/tst-cancel4.c (tf_writev): Add test.
2016-06-06 19:12:36 -03:00
..
bits
…
wordsize-32
Consolidate pwritev/pwritev64 implementations
2016-06-06 19:12:36 -03:00
____longjmp_chk.c
…
access.c
…
brk.c
…
chmod.c
…
chown.c
…
creat.c
…
dl-origin.c
…
dup2.c
…
epoll_create.c
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epoll_wait.c
…
futimesat.c
…
getdents64.c
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getdents.c
…
inotify_init.c
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kernel_stat.h
…
lchown.c
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link.c
…
lxstat.c
…
Makefile
…
mkdir.c
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open64.c
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open.c
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pause.c
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pipe.c
…
poll.c
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readlink_chk.c
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readlink.c
…
README
…
recv.c
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rename.c
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rmdir.c
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select.c
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send.c
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symlink.c
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syscalls.list
Adjust kernel-features.h defaults for recvmsg and sendmsg
2016-05-25 17:27:57 -03:00
sysctl.c
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sysdep.h
Consolidate off_t/off64_t syscall argument passing
2016-04-11 10:07:53 -03:00
umount.c
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unlink.c
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ustat.c
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utimes.c
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xmknod.c
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xstat.c
…

README 

This hierarchy supports Linux systems using the new
asm-generic/unistd.h, which removes many familiar old syscalls.  For
example, to implement open(), newer Linux architectures require glibc
to invoke the __NR_openat syscall with AT_FDCWD.  This hierarchy
provides all those implementations.

It also provides support for 32-bit platforms using the 64-bit kernel
syscall APIs, as the 32-bit ones are no longer provided.  Note that
newer ILP32 environments (x32 or AArch64:ILP32, for example) are
converting to use more 64-bit types in kernel syscalls, so that aspect
of this support is in more flux as of this writing.