gcc/config/netbsd.h

   1 /* Look for the include files in the system-defined places.  */
   2
   3 #undef GPLUSPLUS_INCLUDE_DIR
   4 #define GPLUSPLUS_INCLUDE_DIR "/usr/include/g++"
   5
   6 #undef GCC_INCLUDE_DIR
   7 #define GCC_INCLUDE_DIR "/usr/include"
   8
   9 #undef INCLUDE_DEFAULTS
  10 #define INCLUDE_DEFAULTS                \
  11   {                                     \
  12     { GPLUSPLUS_INCLUDE_DIR, 1, 1 },    \
  13     { GCC_INCLUDE_DIR, 0, 0 },          \
  14     { 0, 0, 0 }                         \
  15   }
  16
  17
  18 /* Under NetBSD, the normal location of the `ld' and `as' programs is the
  19    /usr/bin directory.  */
  20
  21 #undef MD_EXEC_PREFIX
  22 #define MD_EXEC_PREFIX "/usr/bin/"
  23
  24 /* Under NetBSD, the normal location of the various *crt*.o files is the
  25    /usr/lib directory.  */
  26
  27 #undef MD_STARTFILE_PREFIX
  28 #define MD_STARTFILE_PREFIX "/usr/lib/"
  29
  30
  31 /* Provide a CPP_SPEC appropriate for NetBSD.  Current we just deal with
  32    the GCC option `-posix'.  */
  33
  34 #undef CPP_SPEC
  35 #define CPP_SPEC "%{posix:-D_POSIX_SOURCE}"
  36
  37 /* Provide an ASM_SPEC appropriate for NetBSD.  Currently we only deal
  38    with the options for generating PIC code.  */
  39
  40 #undef ASM_SPEC
  41 #define ASM_SPEC " %| %{fpic:-k} %{fPIC:-k -K}"
  42
  43 /* Provide a LIB_SPEC appropriate for NetBSD.  Just select the appropriate
  44    libc, depending on whether we're doing profiling.  */
  45
  46 #undef LIB_SPEC
  47 #define LIB_SPEC "%{!p:%{!pg:-lc}}%{p:-lc_p}%{pg:-lc_p}"
  48
  49 /* Provide a LINK_SPEC appropriate for NetBSD.  Here we provide support
  50    for the special GCC options -static, -assert, and -nostdlib.  */
  51
  52 #undef LINK_SPEC
  53 #define LINK_SPEC \
  54   "%{!nostdlib:%{!r*:%{!e*:-e start}}} -dc -dp %{static:-Bstatic} %{assert*}"
  55
  56
  57 /* We have atexit(3).  */
  58
  59 #define HAVE_ATEXIT
  60
  61 /* Implicit library calls should use memcpy, not bcopy, etc.  */
  62
  63 #define TARGET_MEM_FUNCTIONS
  64 \f
  65 /*
  66  * Some imports from svr4.h in support of shared libraries.
  67  * Currently, we need the DECLARE_OBJECT_SIZE stuff.
  68  */
  69
  70 /* Define the strings used for the special svr4 .type and .size directives.
  71    These strings generally do not vary from one system running svr4 to
  72    another, but if a given system (e.g. m88k running svr) needs to use
  73    different pseudo-op names for these, they may be overridden in the
  74    file which includes this one.  */
  75
  76 #define TYPE_ASM_OP     ".type"
  77 #define SIZE_ASM_OP     ".size"
  78 #define WEAK_ASM_OP     ".weak"
  79
  80 /* The following macro defines the format used to output the second
  81    operand of the .type assembler directive.  Different svr4 assemblers
  82    expect various different forms for this operand.  The one given here
  83    is just a default.  You may need to override it in your machine-
  84    specific tm.h file (depending upon the particulars of your assembler).  */
  85
  86 #define TYPE_OPERAND_FMT        "@%s"
  87
  88 /* Write the extra assembler code needed to declare a function's result.
  89    Most svr4 assemblers don't require any special declaration of the
  90    result value, but there are exceptions.  */
  91
  92 #ifndef ASM_DECLARE_RESULT
  93 #define ASM_DECLARE_RESULT(FILE, RESULT)
  94 #endif
  95
  96 /* These macros generate the special .type and .size directives which
  97    are used to set the corresponding fields of the linker symbol table
  98    entries in an ELF object file under SVR4.  These macros also output
  99    the starting labels for the relevant functions/objects.  */
 100
 101 /* Write the extra assembler code needed to declare a function properly.
 102    Some svr4 assemblers need to also have something extra said about the
 103    function's return value.  We allow for that here.  */
 104
 105 #define ASM_DECLARE_FUNCTION_NAME(FILE, NAME, DECL)                     \
 106   do {                                                                  \
 107     fprintf (FILE, "\t%s\t ", TYPE_ASM_OP);                             \
 108     assemble_name (FILE, NAME);                                         \
 109     putc (',', FILE);                                                   \
 110     fprintf (FILE, TYPE_OPERAND_FMT, "function");                       \
 111     putc ('\n', FILE);                                                  \
 112     ASM_DECLARE_RESULT (FILE, DECL_RESULT (DECL));                      \
 113     ASM_OUTPUT_LABEL(FILE, NAME);                                       \
 114   } while (0)
 115
 116 /* Write the extra assembler code needed to declare an object properly.  */
 117
 118 #define ASM_DECLARE_OBJECT_NAME(FILE, NAME, DECL)                       \
 119   do {                                                                  \
 120     fprintf (FILE, "\t%s\t ", TYPE_ASM_OP);                             \
 121     assemble_name (FILE, NAME);                                         \
 122     putc (',', FILE);                                                   \
 123     fprintf (FILE, TYPE_OPERAND_FMT, "object");                         \
 124     putc ('\n', FILE);                                                  \
 125     size_directive_output = 0;                                          \
 126     if (!flag_inhibit_size_directive && DECL_SIZE (DECL))               \
 127       {                                                                 \
 128         size_directive_output = 1;                                      \
 129         fprintf (FILE, "\t%s\t ", SIZE_ASM_OP);                         \
 130         assemble_name (FILE, NAME);                                     \
 131         fprintf (FILE, ",%d\n",  int_size_in_bytes (TREE_TYPE (DECL))); \
 132       }                                                                 \
 133     ASM_OUTPUT_LABEL(FILE, NAME);                                       \
 134   } while (0)
 135
 136 /* Output the size directive for a decl in rest_of_decl_compilation
 137    in the case where we did not do so before the initializer.
 138    Once we find the error_mark_node, we know that the value of
 139    size_directive_output was set
 140    by ASM_DECLARE_OBJECT_NAME when it was run for the same decl.  */
 141
 142 #define ASM_FINISH_DECLARE_OBJECT(FILE, DECL, TOP_LEVEL, AT_END)         \
 143 do {                                                                     \
 144      char *name = XSTR (XEXP (DECL_RTL (DECL), 0), 0);                   \
 145      if (!flag_inhibit_size_directive && DECL_SIZE (DECL)                \
 146          && ! AT_END && TOP_LEVEL                                        \
 147          && DECL_INITIAL (DECL) == error_mark_node                       \
 148          && !size_directive_output)                                      \
 149        {                                                                 \
 150          size_directive_output = 1;                                      \
 151          fprintf (FILE, "\t%s\t ", SIZE_ASM_OP);                         \
 152          assemble_name (FILE, name);                                     \
 153          fprintf (FILE, ",%d\n",  int_size_in_bytes (TREE_TYPE (DECL))); \
 154        }                                                                 \
 155    } while (0)
 156
 157 /* This is how to declare the size of a function.  */
 158
 159 #define ASM_DECLARE_FUNCTION_SIZE(FILE, FNAME, DECL)                    \
 160   do {                                                                  \
 161     if (!flag_inhibit_size_directive)                                   \
 162       {                                                                 \
 163         char label[256];                                                \
 164         static int labelno;                                             \
 165         labelno++;                                                      \
 166         ASM_GENERATE_INTERNAL_LABEL (label, "Lfe", labelno);            \
 167         ASM_OUTPUT_INTERNAL_LABEL (FILE, "Lfe", labelno);               \
 168         fprintf (FILE, "\t%s\t ", SIZE_ASM_OP);                         \
 169         assemble_name (FILE, (FNAME));                                  \
 170         fprintf (FILE, ",");                                            \
 171         assemble_name (FILE, label);                                    \
 172         fprintf (FILE, "-");                                            \
 173         assemble_name (FILE, (FNAME));                                  \
 174         putc ('\n', FILE);                                              \
 175       }                                                                 \
 176   } while (0)