diff gcc/config/pa/elf.h @ 0:a06113de4d67

first commit
author kent <kent@cr.ie.u-ryukyu.ac.jp>
date Fri, 17 Jul 2009 14:47:48 +0900
parents
children 04ced10e8804
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--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/gcc/config/pa/elf.h	Fri Jul 17 14:47:48 2009 +0900
@@ -0,0 +1,92 @@
+/* Definitions for ELF assembler support.
+   Copyright (C) 1999, 2003, 2005, 2007 Free Software Foundation, Inc.
+
+This file is part of GCC.
+
+GCC is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 3, or (at your option)
+any later version.
+
+GCC 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 General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with GCC; see the file COPYING3.  If not see
+<http://www.gnu.org/licenses/>.  */
+
+/* So we can conditionalize small amounts of code in pa.c or pa.md.  */
+#define OBJ_ELF
+
+#define ENDFILE_SPEC "crtend.o%s"
+
+#define STARTFILE_SPEC "%{!shared: \
+			 %{!symbolic: \
+			  %{pg:gcrt0.o%s}%{!pg:%{p:mcrt0.o%s}%{!p:crt0.o%s}}}}\
+			crtbegin.o%s"
+
+#define TEXT_SECTION_ASM_OP "\t.text"
+#define DATA_SECTION_ASM_OP "\t.data"
+#define BSS_SECTION_ASM_OP "\t.section\t.bss"
+
+#define TARGET_ASM_FILE_START pa_elf_file_start
+
+#undef ASM_DECLARE_FUNCTION_NAME
+#define ASM_DECLARE_FUNCTION_NAME(FILE, NAME, DECL) \
+do {  \
+  if (TREE_PUBLIC (DECL)) \
+    { \
+      fputs ("\t.EXPORT ", FILE); \
+      assemble_name (FILE, NAME); \
+      fputs (",ENTRY\n", FILE); \
+    } \
+   } while (0)
+
+/* This is how to output a command to make the user-level label
+   named NAME defined for reference from other files.  We use
+   assemble_name_raw instead of assemble_name since a symbol in
+   a .IMPORT directive that isn't otherwise referenced is not
+   placed in the symbol table of the assembled object.
+
+   Failure to import a function reference can cause the HP linker
+   to segmentation fault!
+
+   Note that the SOM based tools need the symbol imported as a
+   CODE symbol, while the ELF based tools require the symbol to
+   be imported as an ENTRY symbol.  */
+
+#define ASM_OUTPUT_EXTERNAL(FILE, DECL, NAME) \
+  pa_hpux_asm_output_external ((FILE), (DECL), (NAME))
+#define ASM_OUTPUT_EXTERNAL_REAL(FILE, DECL, NAME) \
+  do { fputs ("\t.IMPORT ", FILE);					\
+       assemble_name_raw (FILE, NAME);					\
+       if (FUNCTION_NAME_P (NAME))     					\
+	 fputs (",ENTRY\n", FILE);					\
+       else								\
+	 fputs (",DATA\n", FILE);					\
+     } while (0)
+
+/* The bogus HP assembler requires ALL external references to be
+   "imported", even library calls. They look a bit different, so
+   here's this macro.
+
+   Also note not all libcall names are passed to
+   targetm.encode_section_info (__main for example).  To make sure all
+   libcall names have section info recorded in them, we do it here.  */
+
+#undef ASM_OUTPUT_EXTERNAL_LIBCALL
+#define ASM_OUTPUT_EXTERNAL_LIBCALL(FILE, RTL) \
+  do { fputs ("\t.IMPORT ", FILE);					\
+       if (!function_label_operand (RTL, VOIDmode))			\
+	 hppa_encode_label (RTL);					\
+       assemble_name (FILE, XSTR ((RTL), 0));		       		\
+       fputs (",ENTRY\n", FILE);					\
+     } while (0)
+
+/* Biggest alignment supported by the object file format of this
+   machine.  Use this macro to limit the alignment which can be
+   specified using the `__attribute__ ((aligned (N)))' construct.  If
+   not defined, the default value is `BIGGEST_ALIGNMENT'.  */
+#define MAX_OFILE_ALIGNMENT (32768 * 8)