gcc/config/pa/pa-linux.h

   1 /* Definitions for PA_RISC with ELF format
   2    Copyright 1999, 2000, 2001, 2002, 2003 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 2, 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 COPYING.  If not, write to
  18 the Free Software Foundation, 51 Franklin Street, Fifth Floor,
  19 Boston, MA 02110-1301, USA.  */
  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         if (flag_pic)                           \
  29           {                                     \
  30                 builtin_define ("__PIC__");     \
  31                 builtin_define ("__pic__");     \
  32           }                                     \
  33     }                                           \
  34   while (0)
  35
  36 #undef CPP_SPEC
  37 #define CPP_SPEC "%{posix:-D_POSIX_SOURCE}"
  38
  39 #undef  LIB_SPEC
  40 #define LIB_SPEC \
  41   "%{pthread:-lpthread} \
  42    %{shared:-lgcc -lc} \
  43    %{!shared:%{mieee-fp:-lieee} %{shared-libgcc:-lgcc} %{profile:-lc_p}%{!profile:-lc}}"
  44
  45 #undef ASM_SPEC
  46 #define ASM_SPEC \
  47   "%{v:-V} %{n} %{T} %{Ym,*} %{Yd,*} %{Wa,*:%*}"
  48
  49 /* Define this for shared library support because it isn't in the main
  50    linux.h file.  */
  51
  52 #undef LINK_SPEC
  53 #define LINK_SPEC "\
  54   %{shared:-shared} \
  55   %{!shared: \
  56     %{!static: \
  57       %{rdynamic:-export-dynamic} \
  58       %{!dynamic-linker:-dynamic-linker /lib/ld.so.1}} \
  59       %{static:-static}}"
  60
  61 /* glibc's profiling functions don't need gcc to allocate counters.  */
  62 #define NO_DEFERRED_PROFILE_COUNTERS 1
  63
  64 /* Define the strings used for the special svr4 .type and .size directives.
  65    These strings generally do not vary from one system running svr4 to
  66    another, but if a given system (e.g. m88k running svr) needs to use
  67    different pseudo-op names for these, they may be overridden in the
  68    file which includes this one.  */
  69
  70 #undef STRING_ASM_OP
  71 #define STRING_ASM_OP   ".stringz"
  72
  73 #define TEXT_SECTION_ASM_OP "\t.text"
  74 #define DATA_SECTION_ASM_OP "\t.data"
  75 #define BSS_SECTION_ASM_OP "\t.section\t.bss"
  76
  77 #define TARGET_ASM_FILE_START pa_linux_file_start
  78
  79 /* We want local labels to start with period if made with asm_fprintf.  */
  80 #undef LOCAL_LABEL_PREFIX
  81 #define LOCAL_LABEL_PREFIX "."
  82
  83 /* Define these to generate the Linux/ELF/SysV style of internal
  84    labels all the time - i.e. to be compatible with
  85    ASM_GENERATE_INTERNAL_LABEL in <elfos.h>.  Compare these with the
  86    ones in pa.h and note the lack of dollar signs in these.  FIXME:
  87    shouldn't we fix pa.h to use ASM_GENERATE_INTERNAL_LABEL instead? */
  88
  89 #undef ASM_OUTPUT_ADDR_VEC_ELT
  90 #define ASM_OUTPUT_ADDR_VEC_ELT(FILE, VALUE) \
  91   if (TARGET_BIG_SWITCH)                                        \
  92     fprintf (FILE, "\t.word .L%d\n", VALUE);                    \
  93   else                                                          \
  94     fprintf (FILE, "\tb .L%d\n\tnop\n", VALUE)
  95
  96 #undef ASM_OUTPUT_ADDR_DIFF_ELT
  97 #define ASM_OUTPUT_ADDR_DIFF_ELT(FILE, BODY, VALUE, REL) \
  98   if (TARGET_BIG_SWITCH)                                        \
  99     fprintf (FILE, "\t.word .L%d-.L%d\n", VALUE, REL);          \
 100   else                                                          \
 101     fprintf (FILE, "\tb .L%d\n\tnop\n", VALUE)
 102
 103 /* Use the default.  */
 104 #undef ASM_OUTPUT_LABEL
 105
 106 /* NOTE: (*targetm.asm_out.internal_label)() is defined for us by elfos.h, and
 107    does what we want (i.e. uses colons).  It must be compatible with
 108    ASM_GENERATE_INTERNAL_LABEL(), so do not define it here.  */
 109
 110 /* Use the default.  */
 111 #undef TARGET_ASM_GLOBALIZE_LABEL
 112 /* Globalizing directive for a label.  */
 113 #define GLOBAL_ASM_OP ".globl "
 114
 115 /* FIXME: Hacked from the <elfos.h> one so that we avoid multiple
 116    labels in a function declaration (since pa.c seems determined to do
 117    it differently)  */
 118
 119 #undef ASM_DECLARE_FUNCTION_NAME
 120 #define ASM_DECLARE_FUNCTION_NAME(FILE, NAME, DECL)             \
 121   do                                                            \
 122     {                                                           \
 123       ASM_OUTPUT_TYPE_DIRECTIVE (FILE, NAME, "function");       \
 124       ASM_DECLARE_RESULT (FILE, DECL_RESULT (DECL));            \
 125     }                                                           \
 126   while (0)
 127
 128 /* As well as globalizing the label, we need to encode the label
 129    to ensure a plabel is generated in an indirect call.  */
 130
 131 #undef ASM_OUTPUT_EXTERNAL_LIBCALL
 132 #define ASM_OUTPUT_EXTERNAL_LIBCALL(FILE, FUN)                  \
 133   do                                                            \
 134     {                                                           \
 135       if (!FUNCTION_NAME_P (XSTR (FUN, 0)))                     \
 136         hppa_encode_label (FUN);                                \
 137       (*targetm.asm_out.globalize_label) (FILE, XSTR (FUN, 0)); \
 138     }                                                           \
 139   while (0)
 140
 141 /* Linux always uses gas.  */
 142 #undef TARGET_GAS
 143 #define TARGET_GAS 1