about summary refs log tree commit diff
path: root/sysdeps/unix/sysv/linux/i386/startup.h
diff options
context:
space:
mode:
Diffstat (limited to 'sysdeps/unix/sysv/linux/i386/startup.h')
-rw-r--r--sysdeps/unix/sysv/linux/i386/startup.h36
1 files changed, 36 insertions, 0 deletions
diff --git a/sysdeps/unix/sysv/linux/i386/startup.h b/sysdeps/unix/sysv/linux/i386/startup.h
new file mode 100644
index 0000000000..a8fd3134b7
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/i386/startup.h
@@ -0,0 +1,36 @@
+/* Linux/i386 definitions of functions used by static libc main startup.
+   Copyright (C) 2017 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
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   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/>.  */
+
+#ifdef BUILD_PIE_DEFAULT
+# include <abort-instr.h>
+
+/* Can't use "call *%gs:SYSINFO_OFFSET" during statup in static PIE.  */
+# define I386_USE_SYSENTER 0
+
+__attribute__ ((__noreturn__))
+static inline void
+_startup_fatal (const char *message __attribute__ ((unused)))
+{
+  /* This is only called very early during startup in static PIE.
+     FIXME: How can it be improved?  */
+  ABORT_INSTRUCTION;
+  __builtin_unreachable ();
+}
+#else
+# include_next <startup.h>
+#endif