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Annotation of gcc/xcoffout.h, revision 1.1

1.1     ! root        1: /* XCOFF definitions.  These are needed in dbxout.c, final.c,
        !             2:    and xcoffout.h.  */
        !             3: 
        !             4: #define ASM_STABS_OP ".stabx"
        !             5: 
        !             6: /* Tags and typedefs are C_DECL in XCOFF, not C_LSYM.  */
        !             7: 
        !             8: #define DBX_DECL_STABS_CODE N_DECL
        !             9: 
        !            10: /* Use the XCOFF predefined type numbers.  */
        !            11: 
        !            12: /* ??? According to metin, typedef stabx must go in text control section,
        !            13:    but he did not make this changes everywhere where such typedef stabx
        !            14:    can be emitted, so it is really needed or not?  */
        !            15: 
        !            16: #define DBX_OUTPUT_STANDARD_TYPES(SYMS)                \
        !            17: {                                              \
        !            18:   text_section ();                             \
        !            19:   xcoff_output_standard_types (SYMS);          \
        !            20: }
        !            21: 
        !            22: /* Any type with a negative type index has already been output.  */
        !            23: 
        !            24: #define DBX_TYPE_DEFINED(TYPE) (TYPE_SYMTAB_ADDRESS (TYPE) < 0)
        !            25: 
        !            26: /* Must use N_STSYM for static const variables (those in the text section)
        !            27:    instead of N_FUN.  */
        !            28: 
        !            29: #define DBX_STATIC_CONST_VAR_CODE N_STSYM
        !            30: 
        !            31: /* For static variables, output code to define the start of a static block.  */
        !            32: 
        !            33: #define DBX_STATIC_BLOCK_START(ASMFILE,CODE)                           \
        !            34: {                                                                      \
        !            35:   if ((CODE) == N_STSYM)                                               \
        !            36:     fprintf ((ASMFILE), "\t.bs\t%s[RW]\n", xcoff_private_data_section_name);\
        !            37:   else if ((CODE) == N_LCSYM)                                          \
        !            38:     fprintf ((ASMFILE), "\t.bs\t%s\n", xcoff_bss_section_name);                \
        !            39: }
        !            40: 
        !            41: /* For static variables, output code to define the end of a static block.  */
        !            42: 
        !            43: #define DBX_STATIC_BLOCK_END(ASMFILE,CODE)                             \
        !            44: {                                                                      \
        !            45:   if (current_sym_code == N_STSYM || current_sym_code == N_LCSYM)      \
        !            46:     fprintf (asmfile, "\t.es\n");                                      \
        !            47: }
        !            48: 
        !            49: /* We must use N_RPYSM instead of N_RSYM for register parameters.  */
        !            50: 
        !            51: #define DBX_REGPARM_STABS_CODE N_RPSYM
        !            52: 
        !            53: /* We must use 'R' instead of 'P' for register parameters.  */
        !            54: 
        !            55: #define DBX_REGPARM_STABS_LETTER 'R'
        !            56: 
        !            57: /* Define our own finish symbol function, since xcoff stabs have their
        !            58:    own different format.  */
        !            59: 
        !            60: #define DBX_FINISH_SYMBOL(SYM)                                 \
        !            61: {                                                              \
        !            62:   if (current_sym_addr && current_sym_code == N_FUN)           \
        !            63:     fprintf (asmfile, "\",.");                                 \
        !            64:   else                                                         \
        !            65:     fprintf (asmfile, "\",");                                  \
        !            66:   /* If we are writing a function name, we must ensure that    \
        !            67:      there is no storage-class suffix on the name.  */         \
        !            68:   if (current_sym_addr && current_sym_code == N_FUN            \
        !            69:       && GET_CODE (current_sym_addr) == SYMBOL_REF)            \
        !            70:     {                                                          \
        !            71:       char *_p;                                                        \
        !            72:       for (_p = XSTR (current_sym_addr, 0); *_p != '[' && *_p; _p++) \
        !            73:        fprintf (asmfile, "%c", *_p);                           \
        !            74:     }                                                          \
        !            75:   else if (current_sym_addr)                                   \
        !            76:     output_addr_const (asmfile, current_sym_addr);             \
        !            77:   else if (current_sym_code == N_GSYM)                         \
        !            78:     fprintf (asmfile, "%s", IDENTIFIER_POINTER (DECL_NAME (SYM))); \
        !            79:   else                                                         \
        !            80:     fprintf (asmfile, "%d", current_sym_value);                        \
        !            81:   fprintf (asmfile, ",%d,0\n", stab_to_sclass (current_sym_code)); \
        !            82: }
        !            83: 
        !            84: /* These are IBM XCOFF extensions we need to reference in dbxout.c
        !            85:    and xcoffout.c.  */
        !            86: 
        !            87: /* AIX XCOFF uses this for typedefs.  This can have any value, since it is
        !            88:    only used for translation into a C_DECL storage class.  */
        !            89: #ifndef N_DECL
        !            90: #define N_DECL 0x8c
        !            91: #endif
        !            92: /* AIX XCOFF uses this for parameters passed in registers.  This can have
        !            93:    any value, since it is only used for translation into a C_RPSYM storage
        !            94:    class.  */
        !            95: #ifndef N_RPSYM
        !            96: #define N_RPSYM 0x8e
        !            97: #endif
        !            98: 
        !            99: /* The line number of the beginning of the current function.
        !           100:    xcoffout.c needs this so that it can output relative linenumbers.  */
        !           101: 
        !           102: extern int xcoff_begin_function_line;
        !           103: 
        !           104: /* Name of the current include file.  */
        !           105: 
        !           106: extern char *xcoff_current_include_file;
        !           107: 
        !           108: /* Name of the current function file.  This is the file the `.bf' is
        !           109:    emitted from.  In case a line is emitted from a different file,
        !           110:    (by including that file of course), then the line number will be
        !           111:    absolute.  */
        !           112: 
        !           113: extern char *xcoff_current_function_file;
        !           114: 
        !           115: /* Names of bss and data sections.  These should be unique names for each
        !           116:    compilation unit.  */
        !           117: 
        !           118: extern char *xcoff_bss_section_name;
        !           119: extern char *xcoff_private_data_section_name;
        !           120: extern char *xcoff_read_only_section_name;
        !           121: 
        !           122: /* Don't write out path name for main source file.  */
        !           123: #define DBX_OUTPUT_MAIN_SOURCE_DIRECTORY(FILE,FILENAME)
        !           124: 
        !           125: /* Write out main source file name using ".file" rather than ".stabs".  */
        !           126: #define DBX_OUTPUT_MAIN_SOURCE_FILENAME(FILE,FILENAME) \
        !           127:   fprintf (FILE, "\t.file\t\"%s\"\n", FILENAME);
        !           128: 
        !           129: #define ABS_OR_RELATIVE_LINENO(LINENO)         \
        !           130: ((xcoff_current_include_file                   \
        !           131:   && xcoff_current_include_file != xcoff_current_function_file)        \
        !           132:  ? (LINENO) : (LINENO) - xcoff_begin_function_line)
        !           133: 
        !           134: /* Output source line numbers via ".line" rather than ".stabd".  */
        !           135: #define ASM_OUTPUT_SOURCE_LINE(FILE,LINENUM) \
        !           136:   do {                                         \
        !           137:     if (xcoff_begin_function_line >= 0)                \
        !           138:       fprintf (FILE, "\t.line\t%d\n", ABS_OR_RELATIVE_LINENO (LINENUM)); \
        !           139:   } while (0)
        !           140: 
        !           141: /* We don't want to emit source file names in dbx style. */
        !           142: #define DBX_OUTPUT_SOURCE_FILENAME(FILE, FILENAME)     \
        !           143: {                                                      \
        !           144:   if (xcoff_current_include_file)                      \
        !           145:     fprintf (FILE, "\t.ei\t\"%s\"\n", xcoff_current_include_file);\
        !           146:   if (strcmp (main_input_filename, FILENAME))          \
        !           147:     {                                                  \
        !           148:       fprintf (FILE, "\t.bi\t\"%s\"\n", FILENAME);     \
        !           149:       xcoff_current_include_file = FILENAME;           \
        !           150:     }                                                  \
        !           151:   else                                                 \
        !           152:     xcoff_current_include_file = NULL;                 \
        !           153: }
        !           154: 
        !           155: /* If we are still in an include file, its end must be marked.  */
        !           156: #define DBX_OUTPUT_MAIN_SOURCE_FILE_END(FILE, FILENAME)        \
        !           157: {                                                      \
        !           158:   if (xcoff_current_include_file)                      \
        !           159:     {                                                  \
        !           160:       fprintf ((FILE), "\t.ei\t\"%s\"\n",              \
        !           161:               xcoff_current_include_file);             \
        !           162:       xcoff_current_include_file = NULL;               \
        !           163:     }                                                  \
        !           164: }
        !           165: 
        !           166: /* Do not break .stabs pseudos into continuations.  */
        !           167: #define DBX_CONTIN_LENGTH 0
        !           168: 
        !           169: /* Don't try to use the `x' type-cross-reference character in DBX data.
        !           170:    Also has the consequence of putting each struct, union or enum
        !           171:    into a separate .stabs, containing only cross-refs to the others.  */
        !           172: #define DBX_NO_XREFS

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