PR c/18946

[pf3gnuchains/gcc-fork.git] / gcc / defaults.h

diff --git a/gcc/defaults.h b/gcc/defaults.h
index 1e1bdc8..7c88129 100644 (file)
--- a/gcc/defaults.h
+++ b/gcc/defaults.h
@@ -1,5 +1,6 @@
 /* Definitions of various defaults for tm.h macros.
-   Copyright (C) 1992, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004
+   Copyright (C) 1992, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004,
+   2005
    Free Software Foundation, Inc.
    Contributed by Ron Guilmette (rfg@monkeys.com)
 
@@ -137,6 +138,12 @@ do { fputs (integer_asm_op (POINTER_SIZE / BITS_PER_UNIT, TRUE), FILE); \
 #endif
 #endif
 
+/* Decide whether to defer emitting the assembler output for an equate
+   of two values.  The default is to not defer output.  */
+#ifndef TARGET_DEFERRED_OUTPUT_DEFS
+#define TARGET_DEFERRED_OUTPUT_DEFS(DECL,TARGET) false
+#endif
+
 /* This is how to output the definition of a user-level label named
    NAME, such as the label on a static function or variable NAME.  */
 
@@ -145,6 +152,15 @@ do { fputs (integer_asm_op (POINTER_SIZE / BITS_PER_UNIT, TRUE), FILE); \
   do { assemble_name ((FILE), (NAME)); fputs (":\n", (FILE)); } while (0)
 #endif
 
+/* Output the definition of a compiler-generated label named NAME.  */
+#ifndef ASM_OUTPUT_INTERNAL_LABEL
+#define ASM_OUTPUT_INTERNAL_LABEL(FILE,NAME)   \
+  do {                                         \
+    assemble_name_raw ((FILE), (NAME));                \
+    fputs (":\n", (FILE));                     \
+  } while (0)
+#endif
+
 /* This is how to output a reference to a user-level label named NAME.  */
 
 #ifndef ASM_OUTPUT_LABELREF
@@ -310,6 +326,26 @@ do { fputs (integer_asm_op (POINTER_SIZE / BITS_PER_UNIT, TRUE), FILE); \
 #endif
 #endif
 
+/* On many systems, different EH table encodings are used under
+   difference circumstances.  Some will require runtime relocations;
+   some will not.  For those that do not require runtime relocations,
+   we would like to make the table read-only.  However, since the
+   read-only tables may need to be combined with read-write tables
+   that do require runtime relocation, it is not safe to make the
+   tables read-only unless the linker will merge read-only and
+   read-write sections into a single read-write section.  If your
+   linker does not have this ability, but your system is such that no
+   encoding used with non-PIC code will ever require a runtime
+   relocation, then you can define EH_TABLES_CAN_BE_READ_ONLY to 1 in
+   your target configuration file.  */
+#ifndef EH_TABLES_CAN_BE_READ_ONLY
+#ifdef HAVE_LD_RO_RW_SECTION_MIXING
+#define EH_TABLES_CAN_BE_READ_ONLY 1
+#else
+#define EH_TABLES_CAN_BE_READ_ONLY 0
+#endif
+#endif
+
 /* If we have named section and we support weak symbols, then use the
    .jcr section for recording java classes which need to be registered
    at program start-up time.  */
@@ -319,6 +355,18 @@ do { fputs (integer_asm_op (POINTER_SIZE / BITS_PER_UNIT, TRUE), FILE); \
 #endif
 #endif
 
+/* This decision to use a .jcr section can be overridden by defining
+   USE_JCR_SECTION to 0 in target file.  This is necessary if target
+   can define JCR_SECTION_NAME but does not have crtstuff or
+   linker support for .jcr section.  */
+#ifndef TARGET_USE_JCR_SECTION
+#ifdef JCR_SECTION_NAME
+#define TARGET_USE_JCR_SECTION 1
+#else
+#define TARGET_USE_JCR_SECTION 0
+#endif
+#endif
+
 /* Number of hardware registers that go into the DWARF-2 unwind info.
    If not defined, equals FIRST_PSEUDO_REGISTER  */