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     }                                           \
  29   while (0)
  30
  31 #undef CPP_SPEC
  32 #define CPP_SPEC "%{posix:-D_POSIX_SOURCE}"
  33
  34 #undef  LIB_SPEC
  35 #define LIB_SPEC \
  36   "%{pthread:-lpthread} \
  37    %{shared:-lgcc -lc} \
  38    %{!shared:%{mieee-fp:-lieee} %{shared-libgcc:-lgcc} %{profile:-lc_p}%{!profile:-lc}}"
  39
  40 #undef ASM_SPEC
  41 #define ASM_SPEC \
  42   "%{v:-V} %{n} %{T} %{Ym,*} %{Yd,*} %{Wa,*:%*}"
  43
  44 /* Define this for shared library support because it isn't in the main
  45    linux.h file.  */
  46
  47 #undef LINK_SPEC
  48 #define LINK_SPEC "\
  49   %{shared:-shared} \
  50   %{!shared: \
  51     %{!static: \
  52       %{rdynamic:-export-dynamic} \
  53       %{!dynamic-linker:-dynamic-linker /lib/ld.so.1}} \
  54       %{static:-static}}"
  55
  56 /* glibc's profiling functions don't need gcc to allocate counters.  */
  57 #define NO_DEFERRED_PROFILE_COUNTERS 1
  58
  59 /* Define the strings used for the special svr4 .type and .size directives.
  60    These strings generally do not vary from one system running svr4 to
  61    another, but if a given system (e.g. m88k running svr) needs to use
  62    different pseudo-op names for these, they may be overridden in the
  63    file which includes this one.  */
  64
  65 #undef STRING_ASM_OP
  66 #define STRING_ASM_OP   ".stringz"
  67
  68 #define TEXT_SECTION_ASM_OP "\t.text"
  69 #define DATA_SECTION_ASM_OP "\t.data"
  70 #define BSS_SECTION_ASM_OP "\t.section\t.bss"
  71
  72 #define TARGET_ASM_FILE_START pa_linux_file_start
  73
  74 /* We want local labels to start with period if made with asm_fprintf.  */
  75 #undef LOCAL_LABEL_PREFIX
  76 #define LOCAL_LABEL_PREFIX "."
  77
  78 /* Define these to generate the Linux/ELF/SysV style of internal
  79    labels all the time - i.e. to be compatible with
  80    ASM_GENERATE_INTERNAL_LABEL in <elfos.h>.  Compare these with the
  81    ones in pa.h and note the lack of dollar signs in these.  FIXME:
  82    shouldn't we fix pa.h to use ASM_GENERATE_INTERNAL_LABEL instead? */
  83
  84 #undef ASM_OUTPUT_ADDR_VEC_ELT
  85 #define ASM_OUTPUT_ADDR_VEC_ELT(FILE, VALUE) \
  86   if (TARGET_BIG_SWITCH)                                        \
  87     fprintf (FILE, "\t.word .L%d\n", VALUE);                    \
  88   else                                                          \
  89     fprintf (FILE, "\tb .L%d\n\tnop\n", VALUE)
  90
  91 #undef ASM_OUTPUT_ADDR_DIFF_ELT
  92 #define ASM_OUTPUT_ADDR_DIFF_ELT(FILE, BODY, VALUE, REL) \
  93   if (TARGET_BIG_SWITCH)                                        \
  94     fprintf (FILE, "\t.word .L%d-.L%d\n", VALUE, REL);          \
  95   else                                                          \
  96     fprintf (FILE, "\tb .L%d\n\tnop\n", VALUE)
  97
  98 /* Use the default.  */
  99 #undef ASM_OUTPUT_LABEL
 100
 101 /* NOTE: (*targetm.asm_out.internal_label)() is defined for us by elfos.h, and
 102    does what we want (i.e. uses colons).  It must be compatible with
 103    ASM_GENERATE_INTERNAL_LABEL(), so do not define it here.  */
 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