gcc/config/pa/pa-linux.h

   1 /* Definitions for PA_RISC with ELF format
   2    Copyright (C) 1999-2014 Free Software Foundation, Inc.
   3
   4 This file is part of GCC.
   5
   6 GCC is free software; you can redistribute it and/or modify
   7 it under the terms of the GNU General Public License as published by
   8 the Free Software Foundation; either version 3, or (at your option)
   9 any later version.
  10
  11 GCC is distributed in the hope that it will be useful,
  12 but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 GNU General Public License for more details.
  15
  16 You should have received a copy of the GNU General Public License
  17 along with GCC; see the file COPYING3.  If not see
  18 <http://www.gnu.org/licenses/>.  */
  19
  20
  21 #undef TARGET_OS_CPP_BUILTINS
  22 #define TARGET_OS_CPP_BUILTINS()                \
  23   do                                            \
  24     {                                           \
  25         builtin_define ("__GCC_HAVE_SYNC_COMPARE_AND_SWAP_1");  \
  26         builtin_define ("__GCC_HAVE_SYNC_COMPARE_AND_SWAP_2");  \
  27         builtin_define ("__GCC_HAVE_SYNC_COMPARE_AND_SWAP_4");  \
  28         GNU_USER_TARGET_OS_CPP_BUILTINS();      \
  29         builtin_assert ("machine=bigendian");   \
  30     }                                           \
  31   while (0)
  32
  33 #undef CPP_SPEC
  34 #define CPP_SPEC "%{posix:-D_POSIX_SOURCE}"
  35
  36 #undef ASM_SPEC
  37 #define ASM_SPEC \
  38   ""
  39
  40 /* Define this for shared library support because it isn't in the main
  41    linux.h file.  */
  42
  43 #define GLIBC_DYNAMIC_LINKER "/lib/ld.so.1"
  44
  45 #undef LINK_SPEC
  46 #define LINK_SPEC "\
  47   %{shared:-shared} \
  48   %{!shared: \
  49     %{!static: \
  50       %{rdynamic:-export-dynamic} \
  51       -dynamic-linker " GNU_USER_DYNAMIC_LINKER "} \
  52       %{static:-static}}"
  53
  54 /* glibc's profiling functions don't need gcc to allocate counters.  */
  55 #define NO_DEFERRED_PROFILE_COUNTERS 1
  56
  57 /* Define the strings used for the special svr4 .type and .size directives.
  58    These strings generally do not vary from one system running svr4 to
  59    another, but if a given system (e.g. m88k running svr) needs to use
  60    different pseudo-op names for these, they may be overridden in the
  61    file which includes this one.  */
  62
  63 #undef STRING_ASM_OP
  64 #define STRING_ASM_OP   "\t.stringz\t"
  65
  66 #define TEXT_SECTION_ASM_OP "\t.text"
  67 #define DATA_SECTION_ASM_OP "\t.data"
  68 #define BSS_SECTION_ASM_OP "\t.section\t.bss"
  69
  70 #define TARGET_ASM_FILE_START pa_linux_file_start
  71
  72 /* We want local labels to start with period if made with asm_fprintf.  */
  73 #undef LOCAL_LABEL_PREFIX
  74 #define LOCAL_LABEL_PREFIX "."
  75
  76 /* Define these to generate the Linux/ELF/SysV style of internal
  77    labels all the time - i.e. to be compatible with
  78    ASM_GENERATE_INTERNAL_LABEL in <elfos.h>.  Compare these with the
  79    ones in pa.h and note the lack of dollar signs in these.  FIXME:
  80    shouldn't we fix pa.h to use ASM_GENERATE_INTERNAL_LABEL instead? */
  81
  82 #undef ASM_OUTPUT_ADDR_VEC_ELT
  83 #define ASM_OUTPUT_ADDR_VEC_ELT(FILE, VALUE) \
  84   fprintf (FILE, "\t.word .L%d\n", VALUE)
  85
  86 #undef ASM_OUTPUT_ADDR_DIFF_ELT
  87 #define ASM_OUTPUT_ADDR_DIFF_ELT(FILE, BODY, VALUE, REL) \
  88   fprintf (FILE, "\t.word .L%d-.L%d\n", VALUE, REL)
  89
  90 /* Use the default.  */
  91 #undef ASM_OUTPUT_LABEL
  92
  93 /* NOTE: (*targetm.asm_out.internal_label)() is defined for us by elfos.h, and
  94    does what we want (i.e. uses colons).  It must be compatible with
  95    ASM_GENERATE_INTERNAL_LABEL(), so do not define it here.  */
  96
  97 /* Use the default.  */
  98 #undef ASM_OUTPUT_INTERNAL_LABEL
  99
 100 /* Use the default.  */
 101 #undef TARGET_ASM_GLOBALIZE_LABEL
 102 /* Globalizing directive for a label.  */
 103 #define GLOBAL_ASM_OP ".globl "
 104
 105 /* FIXME: Hacked from the <elfos.h> one so that we avoid multiple
 106    labels in a function declaration (since pa.c seems determined to do
 107    it differently)  */
 108
 109 #undef ASM_DECLARE_FUNCTION_NAME
 110 #define ASM_DECLARE_FUNCTION_NAME(FILE, NAME, DECL)             \
 111   do                                                            \
 112     {                                                           \
 113       ASM_OUTPUT_TYPE_DIRECTIVE (FILE, NAME, "function");       \
 114       ASM_DECLARE_RESULT (FILE, DECL_RESULT (DECL));            \
 115     }                                                           \
 116   while (0)
 117
 118 /* As well as globalizing the label, we need to encode the label
 119    to ensure a plabel is generated in an indirect call.  */
 120
 121 #undef ASM_OUTPUT_EXTERNAL_LIBCALL
 122 #define ASM_OUTPUT_EXTERNAL_LIBCALL(FILE, FUN)                  \
 123   do                                                            \
 124     {                                                           \
 125       if (!FUNCTION_NAME_P (XSTR (FUN, 0)))                     \
 126         pa_encode_label (FUN);                                  \
 127       (*targetm.asm_out.globalize_label) (FILE, XSTR (FUN, 0)); \
 128     }                                                           \
 129   while (0)
 130
 131 #undef TARGET_GAS
 132 #define TARGET_GAS 1
 133
 134 #undef TARGET_SYNC_LIBCALL
 135 #define TARGET_SYNC_LIBCALL 1