gcc/config/pa/pa-openbsd.h

   1 /* Definitions for PA_RISC with ELF format
   2    Copyright (C) 1999-2021 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         OPENBSD_OS_CPP_BUILTINS();              \
  26         builtin_assert ("machine=bigendian");   \
  27     }                                           \
  28   while (0)
  29
  30 /* Our profiling scheme doesn't LP labels and counter words.  */
  31 #define NO_DEFERRED_PROFILE_COUNTERS 1
  32
  33 #undef STRING_ASM_OP
  34 #define STRING_ASM_OP   "\t.stringz\t"
  35
  36 #define TEXT_SECTION_ASM_OP "\t.text"
  37 #define DATA_SECTION_ASM_OP "\t.data"
  38 #define BSS_SECTION_ASM_OP "\t.section\t.bss"
  39
  40 /* We want local labels to start with period if made with asm_fprintf.  */
  41 #undef LOCAL_LABEL_PREFIX
  42 #define LOCAL_LABEL_PREFIX "."
  43
  44 /* Define these to generate the Linux/ELF/SysV style of internal
  45    labels all the time - i.e. to be compatible with
  46    ASM_GENERATE_INTERNAL_LABEL in <elfos.h>.  Compare these with the
  47    ones in pa.h and note the lack of dollar signs in these.  FIXME:
  48    shouldn't we fix pa.h to use ASM_GENERATE_INTERNAL_LABEL instead? */
  49
  50 #undef ASM_OUTPUT_ADDR_VEC_ELT
  51 #define ASM_OUTPUT_ADDR_VEC_ELT(FILE, VALUE) \
  52   fprintf (FILE, "\t.word .L%d\n", VALUE)
  53
  54 #undef ASM_OUTPUT_ADDR_DIFF_ELT
  55 #define ASM_OUTPUT_ADDR_DIFF_ELT(FILE, BODY, VALUE, REL) \
  56   fprintf (FILE, "\t.word .L%d-.L%d\n", VALUE, REL)
  57
  58 /* Use the default.  */
  59 #undef ASM_OUTPUT_LABEL
  60
  61 /* NOTE: (*targetm.asm_out.internal_label)() is defined for us by elfos.h, and
  62    does what we want (i.e. uses colons).  It must be compatible with
  63    ASM_GENERATE_INTERNAL_LABEL(), so do not define it here.  */
  64
  65 /* Use the default.  */
  66 #undef ASM_OUTPUT_INTERNAL_LABEL
  67
  68 /* Use the default.  */
  69 #undef TARGET_ASM_GLOBALIZE_LABEL
  70
  71 /* FIXME: Hacked from the <elfos.h> one so that we avoid multiple
  72    labels in a function declaration (since pa.c seems determined to do
  73    it differently)  */
  74
  75 #undef ASM_DECLARE_FUNCTION_NAME
  76 #define ASM_DECLARE_FUNCTION_NAME(FILE, NAME, DECL)             \
  77   do                                                            \
  78     {                                                           \
  79       ASM_OUTPUT_TYPE_DIRECTIVE (FILE, NAME, "function");       \
  80       ASM_DECLARE_RESULT (FILE, DECL_RESULT (DECL));            \
  81     }                                                           \
  82   while (0)
  83
  84 /* As well as globalizing the label, we need to encode the label
  85    to ensure a plabel is generated in an indirect call.  */
  86
  87 #undef ASM_OUTPUT_EXTERNAL_LIBCALL
  88 #define ASM_OUTPUT_EXTERNAL_LIBCALL(FILE, FUN)                  \
  89   do                                                            \
  90     {                                                           \
  91       if (!FUNCTION_NAME_P (XSTR (FUN, 0)))                     \
  92         pa_encode_label (FUN);                          \
  93       (*targetm.asm_out.globalize_label) (FILE, XSTR (FUN, 0)); \
  94     }                                                           \
  95   while (0)
  96
  97 /* This says how to output an assembler line to define a global common symbol
  98    with size SIZE (in bytes) and alignment ALIGN (in bits).  */
  99
 100 #undef ASM_OUTPUT_ALIGNED_COMMON
 101 #define ASM_OUTPUT_ALIGNED_COMMON(FILE, NAME, SIZE, ALIGN)              \
 102   pa_asm_output_aligned_common (FILE, NAME, SIZE, ALIGN)
 103
 104 /* This says how to output an assembler line to define a local common symbol
 105    with size SIZE (in bytes) and alignment ALIGN (in bits).  This macro
 106    controls how the assembler definitions of uninitialized static variables
 107    are output.  */
 108
 109 #undef ASM_OUTPUT_ALIGNED_LOCAL
 110 #define ASM_OUTPUT_ALIGNED_LOCAL(FILE, NAME, SIZE, ALIGN)               \
 111   pa_asm_output_aligned_local (FILE, NAME, SIZE, ALIGN)
 112
 113 /* OpenBSD always uses gas.  */
 114 #undef TARGET_GAS
 115 #define TARGET_GAS 1
 116
 117 /* Layout of source language data types. */
 118
 119 /* This must agree with <machine/_types.h> */
 120 #undef SIZE_TYPE
 121 #define SIZE_TYPE "long unsigned int"
 122
 123 #undef PTRDIFF_TYPE
 124 #define PTRDIFF_TYPE "long int"
 125
 126 #undef WCHAR_TYPE
 127 #define WCHAR_TYPE "int"
 128
 129 #undef WCHAR_TYPE_SIZE
 130 #define WCHAR_TYPE_SIZE 32
 131
 132 #undef WINT_TYPE
 133 #define WINT_TYPE "int"
 134
 135 #undef LINK_SPEC
 136 #define LINK_SPEC \
 137   "%{!shared:%{!nostdlib:%{!r:%{!e*:-e __start}}}} \
 138    %{shared:-shared} %{R*} \
 139    %{static:-Bstatic} \
 140    %{!static:-Bdynamic} \
 141    %{assert*} \
 142    -dynamic-linker /usr/libexec/ld.so"
 143
 144 #undef STARTFILE_SPEC
 145 #define STARTFILE_SPEC "\
 146         %{!shared: %{pg:gcrt0%O%s} %{!pg:%{p:gcrt0%O%s} %{!p:crt0%O%s}} \
 147         crtbegin%O%s} %{shared:crtbeginS%O%s}"
 148
 149 #undef ENDFILE_SPEC
 150 #define ENDFILE_SPEC "%{!shared:crtend%O%s} %{shared:crtendS%O%s}"
 151
 152 #define OBSD_HAS_CORRECT_SPECS
 153
 154 #define HAVE_ENABLE_EXECUTE_STACK