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authorAdhemerval Zanella <adhemerval.zanella@linaro.org>2017-07-03 15:00:26 -0300
committerAdhemerval Zanella <adhemerval.zanella@linaro.org>2017-08-18 16:30:05 -0300
commit0bb2fabcb3bcac064a3d89917c0736353cdac2f4 (patch)
treeae8fac95821c7a7953213dee8dea233d5eb5b2cb /sysdeps/unix/sysv/linux/openat.c
parent65a086db91d4e06074b461b8e99efcebe1416a3f (diff)
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Consolidate non cancellable openat call
This patch consolidates all the non cancellable openat{64} calls to use
the __openat{64}_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 (openat_not_cancel): Remove macro.
	(openat_not_cancel_3): Likewise.
	(openat64_not_cancel_3): Likewise).
	(openat_not_cancel_3): Likewise).
	* sysdeps/unix/sysv/linux/not-cancel.h (openat_not_cancel): Remove
	macro.
	(openat_not_cancel_3): Likewise.
	(openat64_not_cancel): Likewise.
	(openat64_not_cancel_3): Likewise.
	* sysdeps/unix/sysv/linux/openat.c (__openat_nocancel): New function.
	* sysdeps/unix/sysv/linux/openat64.c (__openat64_nocancel): Likewise.
	* io/ftw.c (open_dir_stream): Replace openat{64}_not_cancel{_3} with
	__open{64}_nocancel.
	* sysdeps/mach/hurd/opendir.c (__opendirat): Likewise.
	* sysdeps/posix/getcwd.c (__getcwd): Likewise.
	* sysdeps/posix/opendir.c (__opendirat): Likewise.
Diffstat (limited to 'sysdeps/unix/sysv/linux/openat.c')
-rw-r--r--sysdeps/unix/sysv/linux/openat.c20
1 files changed, 20 insertions, 0 deletions
diff --git a/sysdeps/unix/sysv/linux/openat.c b/sysdeps/unix/sysv/linux/openat.c
index 158730596d..05c1b397f1 100644
--- a/sysdeps/unix/sysv/linux/openat.c
+++ b/sysdeps/unix/sysv/linux/openat.c
@@ -19,6 +19,7 @@
 #include <stdarg.h>
 
 #include <sysdep-cancel.h>
+#include <not-cancel.h>
 
 #ifndef __OFF_T_MATCHES_OFF64_T
 
@@ -43,4 +44,23 @@ weak_alias (__libc_openat, __openat)
 libc_hidden_weak (__openat)
 weak_alias (__libc_openat, openat)
 
+# if !IS_IN (rtld)
+int
+__openat_nocancel (int fd, const char *file, int oflag, ...)
+{
+  mode_t mode = 0;
+  if (__OPEN_NEEDS_MODE (oflag))
+    {
+      va_list arg;
+      va_start (arg, oflag);
+      mode = va_arg (arg, mode_t);
+      va_end (arg);
+    }
+
+  return INLINE_SYSCALL_CALL (openat, fd, file, oflag, mode);
+}
+# else
+strong_alias (__libc_openat, __openat_nocancel)
+# endif
+libc_hidden_weak (__openat_nocancel)
 #endif