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Consolidate non cancellable write call

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This patch consolidates all the non cancellable write calls to use
the __write_nocancel identifier.  For non cancellable targets it will
be just a macro to call the default respective symbol while on Linux
will be a internal one.

Checked on x86_64-linux-gnu, x86_64-linux-gnu-x32, and i686-linux-gnu.

	* sysdeps/generic/not-cancel.h (write_not_cancel): Remove macro.
	(__write_nocancel): New macro.
	* sysdeps/unix/sysv/linux/not-cancel.h (__write_nocancel):
	Rewrite as a function prototype.
	(write_not_cancel): Remove macro.
	* sysdeps/unix/sysv/linux/write.c (__write_nocancel): New function.
	* gmon/gmon.c (ERR): Replace write_not_cancel with __write_nocancel.
	(write_gmon): Likewise.
	* libio/fileops.c (_IO_new_file_write): Likewise.
	* login/utmp_file.c (pututline_file): Likewise.
	(updwtmp_file): Likewise.
	* stdio-common/psiginfo.c (psiginfo): Likewise.
	* sysdeps/posix/spawni.c (__spawni_child): Likewise.
	* sysdeps/unix/sysv/linux/gethostid.c (sethostid): Likewise.
	* sysdeps/unix/sysv/linux/libc_fatal.c (backtrace_and_maps):
	Likewise.
	* sysdeps/unix/sysv/linux/pthread_setname.c (pthread_setname_np):
	Likewise.
This commit is contained in:
Adhemerval Zanella
2017-07-03 14:39:52 -03:00
parent a748eb31c1
commit c647fb885c
12 changed files with 45 additions and 18 deletions
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12
sysdeps/unix/sysv/linux/write.c
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@ -18,6 +18,7 @@
#include <unistd.h>
#include <sysdep-cancel.h>
#include <not-cancel.h>
/* Write NBYTES of BUF to FD. Return the number written, or -1. */
ssize_t
@ -31,3 +32,14 @@ weak_alias (__libc_write, __write)
libc_hidden_weak (__write)
weak_alias (__libc_write, write)
libc_hidden_weak (write)
#if !IS_IN (rtld)
ssize_t
__write_nocancel (int fd, const void *buf, size_t nbytes)
{
return INLINE_SYSCALL_CALL (write, fd, buf, nbytes);
}
#else
strong_alias (__libc_write, __write_nocancel)
#endif
libc_hidden_def (__write_nocancel)