--- a/gcc/config/pa/pa-linux.h	Sun Aug 21 07:07:55 2011 +0900
+++ b/gcc/config/pa/pa-linux.h	Fri Oct 27 22:46:09 2017 +0900
@@ -1,7 +1,5 @@
 /* Definitions for PA_RISC with ELF format
-   Copyright 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2009, 2010,
-   2011
-   Free Software Foundation, Inc.
+   Copyright (C) 1999-2017 Free Software Foundation, Inc.
 
 This file is part of GCC.
 
@@ -24,13 +22,13 @@
 #define TARGET_OS_CPP_BUILTINS()		\
   do						\
     {						\
-	LINUX_TARGET_OS_CPP_BUILTINS();		\
+	GNU_USER_TARGET_OS_CPP_BUILTINS();	\
 	builtin_assert ("machine=bigendian");	\
     }						\
   while (0)
 
 #undef CPP_SPEC
-#define CPP_SPEC "%{posix:-D_POSIX_SOURCE}"
+#define CPP_SPEC "%{posix:-D_POSIX_SOURCE} %{pthread:-D_REENTRANT}"
 
 #undef ASM_SPEC
 #define ASM_SPEC \
@@ -47,7 +45,7 @@
   %{!shared: \
     %{!static: \
       %{rdynamic:-export-dynamic} \
-      -dynamic-linker " LINUX_DYNAMIC_LINKER "} \
+      -dynamic-linker " GNU_USER_DYNAMIC_LINKER "} \
       %{static:-static}}"
 
 /* glibc's profiling functions don't need gcc to allocate counters.  */
@@ -80,17 +78,11 @@
 
 #undef ASM_OUTPUT_ADDR_VEC_ELT
 #define ASM_OUTPUT_ADDR_VEC_ELT(FILE, VALUE) \
-  if (TARGET_BIG_SWITCH)					\
-    fprintf (FILE, "\t.word .L%d\n", VALUE);			\
-  else								\
-    fprintf (FILE, "\tb .L%d\n\tnop\n", VALUE)
+  fprintf (FILE, "\t.word .L%d\n", VALUE)
 
 #undef ASM_OUTPUT_ADDR_DIFF_ELT
 #define ASM_OUTPUT_ADDR_DIFF_ELT(FILE, BODY, VALUE, REL) \
-  if (TARGET_BIG_SWITCH)					\
-    fprintf (FILE, "\t.word .L%d-.L%d\n", VALUE, REL);		\
-  else								\
-    fprintf (FILE, "\tb .L%d\n\tnop\n", VALUE)
+  fprintf (FILE, "\t.word .L%d-.L%d\n", VALUE, REL)
 
 /* Use the default.  */
 #undef ASM_OUTPUT_LABEL
@@ -128,11 +120,27 @@
   do								\
     {								\
       if (!FUNCTION_NAME_P (XSTR (FUN, 0)))			\
-	hppa_encode_label (FUN);				\
+	pa_encode_label (FUN);					\
       (*targetm.asm_out.globalize_label) (FILE, XSTR (FUN, 0));	\
     }								\
   while (0)
 
-/* Linux always uses gas.  */
 #undef TARGET_GAS
 #define TARGET_GAS 1
+
+#undef TARGET_SYNC_LIBCALL
+#define TARGET_SYNC_LIBCALL 1
+
+/* The SYNC operations are implemented as library functions, not
+   INSN patterns.  As a result, the HAVE defines for the patterns are
+   not defined.  We need to define them to generate the corresponding
+   __GCC_HAVE_SYNC_COMPARE_AND_SWAP_* and __GCC_ATOMIC_*_LOCK_FREE
+   defines.  */
+
+#define HAVE_sync_compare_and_swapqi 1
+#define HAVE_sync_compare_and_swaphi 1
+#define HAVE_sync_compare_and_swapsi 1
+#define HAVE_sync_compare_and_swapdi 1
+
+#undef NEED_INDICATE_EXEC_STACK
+#define NEED_INDICATE_EXEC_STACK 1