gcc/config/pa/pa-openbsd.h

   1 /* Definitions for PA_RISC with ELF format
   2    Copyright 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2009, 2010,
   3    2011, 2012
   4    Free Software Foundation, Inc.
   5
   6 This file is part of GCC.
   7
   8 GCC is free software; you can redistribute it and/or modify
   9 it under the terms of the GNU General Public License as published by
  10 the Free Software Foundation; either version 3, or (at your option)
  11 any later version.
  12
  13 GCC is distributed in the hope that it will be useful,
  14 but WITHOUT ANY WARRANTY; without even the implied warranty of
  15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16 GNU General Public License for more details.
  17
  18 You should have received a copy of the GNU General Public License
  19 along with GCC; see the file COPYING3.  If not see
  20 <http://www.gnu.org/licenses/>.  */
  21
  22
  23 #undef TARGET_OS_CPP_BUILTINS
  24 #define TARGET_OS_CPP_BUILTINS()                \
  25   do                                            \
  26     {                                           \
  27         OPENBSD_OS_CPP_BUILTINS();              \
  28         builtin_assert ("machine=bigendian");   \
  29     }                                           \
  30   while (0)
  31
  32 /* Our profiling scheme doesn't LP labels and counter words.  */
  33 #define NO_DEFERRED_PROFILE_COUNTERS 1
  34
  35 #undef STRING_ASM_OP
  36 #define STRING_ASM_OP   "\t.stringz\t"
  37
  38 #define TEXT_SECTION_ASM_OP "\t.text"
  39 #define DATA_SECTION_ASM_OP "\t.data"
  40 #define BSS_SECTION_ASM_OP "\t.section\t.bss"
  41
  42 /* We want local labels to start with period if made with asm_fprintf.  */
  43 #undef LOCAL_LABEL_PREFIX
  44 #define LOCAL_LABEL_PREFIX "."
  45
  46 /* Define these to generate the Linux/ELF/SysV style of internal
  47    labels all the time - i.e. to be compatible with
  48    ASM_GENERATE_INTERNAL_LABEL in <elfos.h>.  Compare these with the
  49    ones in pa.h and note the lack of dollar signs in these.  FIXME:
  50    shouldn't we fix pa.h to use ASM_GENERATE_INTERNAL_LABEL instead? */
  51
  52 #undef ASM_OUTPUT_ADDR_VEC_ELT
  53 #define ASM_OUTPUT_ADDR_VEC_ELT(FILE, VALUE) \
  54   if (TARGET_BIG_SWITCH)                                        \
  55     fprintf (FILE, "\t.word .L%d\n", VALUE);                    \
  56   else                                                          \
  57     fprintf (FILE, "\tb .L%d\n\tnop\n", VALUE)
  58
  59 #undef ASM_OUTPUT_ADDR_DIFF_ELT
  60 #define ASM_OUTPUT_ADDR_DIFF_ELT(FILE, BODY, VALUE, REL) \
  61   if (TARGET_BIG_SWITCH)                                        \
  62     fprintf (FILE, "\t.word .L%d-.L%d\n", VALUE, REL);          \
  63   else                                                          \
  64     fprintf (FILE, "\tb .L%d\n\tnop\n", VALUE)
  65
  66 /* Use the default.  */
  67 #undef ASM_OUTPUT_LABEL
  68
  69 /* NOTE: (*targetm.asm_out.internal_label)() is defined for us by elfos.h, and
  70    does what we want (i.e. uses colons).  It must be compatible with
  71    ASM_GENERATE_INTERNAL_LABEL(), so do not define it here.  */
  72
  73 /* Use the default.  */
  74 #undef ASM_OUTPUT_INTERNAL_LABEL
  75
  76 /* Use the default.  */
  77 #undef TARGET_ASM_GLOBALIZE_LABEL
  78
  79 /* FIXME: Hacked from the <elfos.h> one so that we avoid multiple
  80    labels in a function declaration (since pa.c seems determined to do
  81    it differently)  */
  82
  83 #undef ASM_DECLARE_FUNCTION_NAME
  84 #define ASM_DECLARE_FUNCTION_NAME(FILE, NAME, DECL)             \
  85   do                                                            \
  86     {                                                           \
  87       ASM_OUTPUT_TYPE_DIRECTIVE (FILE, NAME, "function");       \
  88       ASM_DECLARE_RESULT (FILE, DECL_RESULT (DECL));            \
  89     }                                                           \
  90   while (0)
  91
  92 /* As well as globalizing the label, we need to encode the label
  93    to ensure a plabel is generated in an indirect call.  */
  94
  95 #undef ASM_OUTPUT_EXTERNAL_LIBCALL
  96 #define ASM_OUTPUT_EXTERNAL_LIBCALL(FILE, FUN)                  \
  97   do                                                            \
  98     {                                                           \
  99       if (!FUNCTION_NAME_P (XSTR (FUN, 0)))                     \
 100         pa_encode_label (FUN);                          \
 101       (*targetm.asm_out.globalize_label) (FILE, XSTR (FUN, 0)); \
 102     }                                                           \
 103   while (0)
 104
 105 /* This says how to output an assembler line to define a global common symbol
 106    with size SIZE (in bytes) and alignment ALIGN (in bits).  */
 107
 108 #undef ASM_OUTPUT_ALIGNED_COMMON
 109 #define ASM_OUTPUT_ALIGNED_COMMON(FILE, NAME, SIZE, ALIGN)              \
 110   pa_asm_output_aligned_common (FILE, NAME, SIZE, ALIGN)
 111
 112 /* This says how to output an assembler line to define a local common symbol
 113    with size SIZE (in bytes) and alignment ALIGN (in bits).  This macro
 114    controls how the assembler definitions of uninitialized static variables
 115    are output.  */
 116
 117 #undef ASM_OUTPUT_ALIGNED_LOCAL
 118 #define ASM_OUTPUT_ALIGNED_LOCAL(FILE, NAME, SIZE, ALIGN)               \
 119   pa_asm_output_aligned_local (FILE, NAME, SIZE, ALIGN)
 120
 121 /* OpenBSD always uses gas.  */
 122 #undef TARGET_GAS
 123 #define TARGET_GAS 1
 124
 125 /* Layout of source language data types. */
 126
 127 /* This must agree with <machine/_types.h> */
 128 #undef SIZE_TYPE
 129 #define SIZE_TYPE "long unsigned int"
 130
 131 #undef PTRDIFF_TYPE
 132 #define PTRDIFF_TYPE "long int"
 133
 134 #undef WCHAR_TYPE
 135 #define WCHAR_TYPE "int"
 136
 137 #undef WCHAR_TYPE_SIZE
 138 #define WCHAR_TYPE_SIZE 32
 139
 140 #undef WINT_TYPE
 141 #define WINT_TYPE "int"
 142
 143 #undef LINK_SPEC
 144 #define LINK_SPEC \
 145   "%{!shared:%{!nostdlib:%{!r:%{!e*:-e __start}}}} \
 146    %{shared:-shared} %{R*} \
 147    %{static:-Bstatic} \
 148    %{!static:-Bdynamic} \
 149    %{assert*} \
 150    -dynamic-linker /usr/libexec/ld.so"
 151
 152 #undef STARTFILE_SPEC
 153 #define STARTFILE_SPEC "\
 154         %{!shared: %{pg:gcrt0%O%s} %{!pg:%{p:gcrt0%O%s} %{!p:crt0%O%s}} \
 155         crtbegin%O%s} %{shared:crtbeginS%O%s}"
 156
 157 #undef ENDFILE_SPEC
 158 #define ENDFILE_SPEC "%{!shared:crtend%O%s} %{shared:crtendS%O%s}"
 159
 160 #define OBSD_HAS_CORRECT_SPECS
 161
 162 #define HAVE_ENABLE_EXECUTE_STACK