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, 2010,
   3    2011
   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         LINUX_TARGET_OS_CPP_BUILTINS();         \
  28         builtin_assert ("machine=bigendian");   \
  29     }                                           \
  30   while (0)
  31
  32 #undef CPP_SPEC
  33 #define CPP_SPEC "%{posix:-D_POSIX_SOURCE}"
  34
  35 #undef ASM_SPEC
  36 #define ASM_SPEC \
  37   "%{Ym,*}"
  38
  39 /* Define this for shared library support because it isn't in the main
  40    linux.h file.  */
  41
  42 #define GLIBC_DYNAMIC_LINKER "/lib/ld.so.1"
  43
  44 #undef LINK_SPEC
  45 #define LINK_SPEC "\
  46   %{shared:-shared} \
  47   %{!shared: \
  48     %{!static: \
  49       %{rdynamic:-export-dynamic} \
  50       -dynamic-linker " LINUX_DYNAMIC_LINKER "} \
  51       %{static:-static}}"
  52
  53 /* glibc's profiling functions don't need gcc to allocate counters.  */
  54 #define NO_DEFERRED_PROFILE_COUNTERS 1
  55
  56 /* Define the strings used for the special svr4 .type and .size directives.
  57    These strings generally do not vary from one system running svr4 to
  58    another, but if a given system (e.g. m88k running svr) needs to use
  59    different pseudo-op names for these, they may be overridden in the
  60    file which includes this one.  */
  61
  62 #undef STRING_ASM_OP
  63 #define STRING_ASM_OP   "\t.stringz\t"
  64
  65 #define TEXT_SECTION_ASM_OP "\t.text"
  66 #define DATA_SECTION_ASM_OP "\t.data"
  67 #define BSS_SECTION_ASM_OP "\t.section\t.bss"
  68
  69 #define TARGET_ASM_FILE_START pa_linux_file_start
  70
  71 /* We want local labels to start with period if made with asm_fprintf.  */
  72 #undef LOCAL_LABEL_PREFIX
  73 #define LOCAL_LABEL_PREFIX "."
  74
  75 /* Define these to generate the Linux/ELF/SysV style of internal
  76    labels all the time - i.e. to be compatible with
  77    ASM_GENERATE_INTERNAL_LABEL in <elfos.h>.  Compare these with the
  78    ones in pa.h and note the lack of dollar signs in these.  FIXME:
  79    shouldn't we fix pa.h to use ASM_GENERATE_INTERNAL_LABEL instead? */
  80
  81 #undef ASM_OUTPUT_ADDR_VEC_ELT
  82 #define ASM_OUTPUT_ADDR_VEC_ELT(FILE, VALUE) \
  83   if (TARGET_BIG_SWITCH)                                        \
  84     fprintf (FILE, "\t.word .L%d\n", VALUE);                    \
  85   else                                                          \
  86     fprintf (FILE, "\tb .L%d\n\tnop\n", VALUE)
  87
  88 #undef ASM_OUTPUT_ADDR_DIFF_ELT
  89 #define ASM_OUTPUT_ADDR_DIFF_ELT(FILE, BODY, VALUE, REL) \
  90   if (TARGET_BIG_SWITCH)                                        \
  91     fprintf (FILE, "\t.word .L%d-.L%d\n", VALUE, REL);          \
  92   else                                                          \
  93     fprintf (FILE, "\tb .L%d\n\tnop\n", VALUE)
  94
  95 /* Use the default.  */
  96 #undef ASM_OUTPUT_LABEL
  97
  98 /* NOTE: (*targetm.asm_out.internal_label)() is defined for us by elfos.h, and
  99    does what we want (i.e. uses colons).  It must be compatible with
 100    ASM_GENERATE_INTERNAL_LABEL(), so do not define it here.  */
 101
 102 /* Use the default.  */
 103 #undef ASM_OUTPUT_INTERNAL_LABEL
 104
 105 /* Use the default.  */
 106 #undef TARGET_ASM_GLOBALIZE_LABEL
 107 /* Globalizing directive for a label.  */
 108 #define GLOBAL_ASM_OP ".globl "
 109
 110 /* FIXME: Hacked from the <elfos.h> one so that we avoid multiple
 111    labels in a function declaration (since pa.c seems determined to do
 112    it differently)  */
 113
 114 #undef ASM_DECLARE_FUNCTION_NAME
 115 #define ASM_DECLARE_FUNCTION_NAME(FILE, NAME, DECL)             \
 116   do                                                            \
 117     {                                                           \
 118       ASM_OUTPUT_TYPE_DIRECTIVE (FILE, NAME, "function");       \
 119       ASM_DECLARE_RESULT (FILE, DECL_RESULT (DECL));            \
 120     }                                                           \
 121   while (0)
 122
 123 /* As well as globalizing the label, we need to encode the label
 124    to ensure a plabel is generated in an indirect call.  */
 125
 126 #undef ASM_OUTPUT_EXTERNAL_LIBCALL
 127 #define ASM_OUTPUT_EXTERNAL_LIBCALL(FILE, FUN)                  \
 128   do                                                            \
 129     {                                                           \
 130       if (!FUNCTION_NAME_P (XSTR (FUN, 0)))                     \
 131         hppa_encode_label (FUN);                                \
 132       (*targetm.asm_out.globalize_label) (FILE, XSTR (FUN, 0)); \
 133     }                                                           \
 134   while (0)
 135
 136 /* Linux always uses gas.  */
 137 #undef TARGET_GAS
 138 #define TARGET_GAS 1