gcc/config/pa/pa-linux.h

   1 /* Definitions for PA_RISC with ELF format
   2    Copyright 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2009
   3    Free Software Foundation, Inc.
   4
   5 This file is part of GCC.
   6
   7 GCC is free software; you can redistribute it and/or modify
   8 it under the terms of the GNU General Public License as published by
   9 the Free Software Foundation; either version 3, or (at your option)
  10 any later version.
  11
  12 GCC is distributed in the hope that it will be useful,
  13 but WITHOUT ANY WARRANTY; without even the implied warranty of
  14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15 GNU General Public License for more details.
  16
  17 You should have received a copy of the GNU General Public License
  18 along with GCC; see the file COPYING3.  If not see
  19 <http://www.gnu.org/licenses/>.  */
  20
  21
  22 #undef TARGET_OS_CPP_BUILTINS
  23 #define TARGET_OS_CPP_BUILTINS()                \
  24   do                                            \
  25     {                                           \
  26         LINUX_TARGET_OS_CPP_BUILTINS();         \
  27         builtin_assert ("machine=bigendian");   \
  28     }                                           \
  29   while (0)
  30
  31 #undef CPP_SPEC
  32 #define CPP_SPEC "%{posix:-D_POSIX_SOURCE}"
  33
  34 #undef ASM_SPEC
  35 #define ASM_SPEC \
  36   "%{v:-V} %{n} %{T} %{Ym,*} %{Yd,*} %{Wa,*:%*}"
  37
  38 /* Define this for shared library support because it isn't in the main
  39    linux.h file.  */
  40
  41 #define GLIBC_DYNAMIC_LINKER "/lib/ld.so.1"
  42
  43 #undef LINK_SPEC
  44 #define LINK_SPEC "\
  45   %{shared:-shared} \
  46   %{!shared: \
  47     %{!static: \
  48       %{rdynamic:-export-dynamic} \
  49       %{!dynamic-linker:-dynamic-linker " LINUX_DYNAMIC_LINKER "}} \
  50       %{static:-static}}"
  51
  52 /* glibc's profiling functions don't need gcc to allocate counters.  */
  53 #define NO_DEFERRED_PROFILE_COUNTERS 1
  54
  55 /* Define the strings used for the special svr4 .type and .size directives.
  56    These strings generally do not vary from one system running svr4 to
  57    another, but if a given system (e.g. m88k running svr) needs to use
  58    different pseudo-op names for these, they may be overridden in the
  59    file which includes this one.  */
  60
  61 #undef STRING_ASM_OP
  62 #define STRING_ASM_OP   "\t.stringz\t"
  63
  64 #define TEXT_SECTION_ASM_OP "\t.text"
  65 #define DATA_SECTION_ASM_OP "\t.data"
  66 #define BSS_SECTION_ASM_OP "\t.section\t.bss"
  67
  68 #define TARGET_ASM_FILE_START pa_linux_file_start
  69
  70 /* We want local labels to start with period if made with asm_fprintf.  */
  71 #undef LOCAL_LABEL_PREFIX
  72 #define LOCAL_LABEL_PREFIX "."
  73
  74 /* Define these to generate the Linux/ELF/SysV style of internal
  75    labels all the time - i.e. to be compatible with
  76    ASM_GENERATE_INTERNAL_LABEL in <elfos.h>.  Compare these with the
  77    ones in pa.h and note the lack of dollar signs in these.  FIXME:
  78    shouldn't we fix pa.h to use ASM_GENERATE_INTERNAL_LABEL instead? */
  79
  80 #undef ASM_OUTPUT_ADDR_VEC_ELT
  81 #define ASM_OUTPUT_ADDR_VEC_ELT(FILE, VALUE) \
  82   if (TARGET_BIG_SWITCH)                                        \
  83     fprintf (FILE, "\t.word .L%d\n", VALUE);                    \
  84   else                                                          \
  85     fprintf (FILE, "\tb .L%d\n\tnop\n", VALUE)
  86
  87 #undef ASM_OUTPUT_ADDR_DIFF_ELT
  88 #define ASM_OUTPUT_ADDR_DIFF_ELT(FILE, BODY, VALUE, REL) \
  89   if (TARGET_BIG_SWITCH)                                        \
  90     fprintf (FILE, "\t.word .L%d-.L%d\n", VALUE, REL);          \
  91   else                                                          \
  92     fprintf (FILE, "\tb .L%d\n\tnop\n", VALUE)
  93
  94 /* Use the default.  */
  95 #undef ASM_OUTPUT_LABEL
  96
  97 /* NOTE: (*targetm.asm_out.internal_label)() is defined for us by elfos.h, and
  98    does what we want (i.e. uses colons).  It must be compatible with
  99    ASM_GENERATE_INTERNAL_LABEL(), so do not define it here.  */
 100
 101 /* Use the default.  */
 102 #undef ASM_OUTPUT_INTERNAL_LABEL
 103
 104 /* Use the default.  */
 105 #undef TARGET_ASM_GLOBALIZE_LABEL
 106 /* Globalizing directive for a label.  */
 107 #define GLOBAL_ASM_OP ".globl "
 108
 109 /* FIXME: Hacked from the <elfos.h> one so that we avoid multiple
 110    labels in a function declaration (since pa.c seems determined to do
 111    it differently)  */
 112
 113 #undef ASM_DECLARE_FUNCTION_NAME
 114 #define ASM_DECLARE_FUNCTION_NAME(FILE, NAME, DECL)             \
 115   do                                                            \
 116     {                                                           \
 117       ASM_OUTPUT_TYPE_DIRECTIVE (FILE, NAME, "function");       \
 118       ASM_DECLARE_RESULT (FILE, DECL_RESULT (DECL));            \
 119     }                                                           \
 120   while (0)
 121
 122 /* As well as globalizing the label, we need to encode the label
 123    to ensure a plabel is generated in an indirect call.  */
 124
 125 #undef ASM_OUTPUT_EXTERNAL_LIBCALL
 126 #define ASM_OUTPUT_EXTERNAL_LIBCALL(FILE, FUN)                  \
 127   do                                                            \
 128     {                                                           \
 129       if (!FUNCTION_NAME_P (XSTR (FUN, 0)))                     \
 130         hppa_encode_label (FUN);                                \
 131       (*targetm.asm_out.globalize_label) (FILE, XSTR (FUN, 0)); \
 132     }                                                           \
 133   while (0)
 134
 135 /* Linux always uses gas.  */
 136 #undef TARGET_GAS
 137 #define TARGET_GAS 1