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[thirdparty/glibc.git] / sysdeps / unix / sysv / linux / mips / mips64 / n32 / sysdep.h

diff --git a/sysdeps/unix/sysv/linux/mips/mips64/n32/sysdep.h b/sysdeps/unix/sysv/linux/mips/mips64/n32/sysdep.h
index 4c28af6c3e332bec7c45440a1cc179d58ef00694..0c32cc38516403f6ec929b1563cb2fa86ef3aca6 100644 (file)
--- a/sysdeps/unix/sysv/linux/mips/mips64/n32/sysdep.h
+++ b/sysdeps/unix/sysv/linux/mips/mips64/n32/sysdep.h
@@ -1,4 +1,4 @@
-/* Copyright (C) 2000-2015 Free Software Foundation, Inc.
+/* Copyright (C) 2000-2019 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
@@ -13,12 +13,13 @@
 
    You should have received a copy of the GNU Lesser General Public
    License along with the GNU C Library.  If not, see
-   <http://www.gnu.org/licenses/>.  */
+   <https://www.gnu.org/licenses/>.  */
 
 #ifndef _LINUX_MIPS_SYSDEP_H
 #define _LINUX_MIPS_SYSDEP_H 1
 
 /* There is some commonality.  */
+#include <sysdeps/unix/sysv/linux/sysdep.h>
 #include <sysdeps/unix/mips/mips64/n32/sysdep.h>
 
 #include <tls.h>
@@ -294,6 +295,23 @@
 
 #define __SYSCALL_CLOBBERS "$1", "$3", "$10", "$11", "$12", "$13", \
        "$14", "$15", "$24", "$25", "hi", "lo", "memory"
+
+/* Standard MIPS syscalls have an error flag, and return a positive errno
+   when the error flag is set. Emulate this behaviour for vsyscalls so that
+   the INTERNAL_SYSCALL_{ERROR_P,ERRNO} macros work correctly.  */
+#define INTERNAL_VSYSCALL_CALL(funcptr, err, nr, args...)              \
+  ({                                                                   \
+    long _ret = funcptr (args);                                                \
+    err = ((unsigned long) (_ret) >= (unsigned long) -4095L);          \
+    if (err)                                                           \
+      _ret = -_ret;                                                    \
+    _ret;                                                              \
+  })
+
+/* List of system calls which are supported as vsyscalls.  */
+#define HAVE_CLOCK_GETTIME_VSYSCALL    1
+#define HAVE_GETTIMEOFDAY_VSYSCALL     1
+
 #endif /* __ASSEMBLER__ */
 
 /* Pointer mangling is not yet supported for MIPS.  */