OSDN Git Service

2003-07-30 Chris Demetriou <cgd@broadcom.com>
[pf3gnuchains/gcc-fork.git] / gcc / xcoffout.h
index 7efa984..2b83048 100644 (file)
@@ -1,7 +1,27 @@
 /* XCOFF definitions.  These are needed in dbxout.c, final.c,
-   and xcoffout.h.  */
+   and xcoffout.h.
+   Copyright (C) 1998, 2000, 2002, 2003
+   Free Software Foundation, Inc.
 
-#define ASM_STABS_OP ".stabx"
+This file is part of GCC.
+
+GCC is free software; you can redistribute it and/or modify it under
+the terms of the GNU General Public License as published by the Free
+Software Foundation; either version 2, or (at your option) any later
+version.
+
+GCC is distributed in the hope that it will be useful, but WITHOUT ANY
+WARRANTY; without even the implied warranty of MERCHANTABILITY or
+FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+for more details.
+
+You should have received a copy of the GNU General Public License
+along with GCC; see the file COPYING.  If not, write to the Free
+Software Foundation, 59 Temple Place - Suite 330, Boston, MA
+02111-1307, USA.  */
+
+
+#define ASM_STABS_OP "\t.stabx\t"
 
 /* Tags and typedefs are C_DECL in XCOFF, not C_LSYM.  */
 
 
 #define DBX_STATIC_CONST_VAR_CODE N_STSYM
 
-/* For static variables, output code to define the start of a static block.
-
-   ??? The IBM rs6000/AIX assembler has a bug that causes bss block debug
-   info to be occasionally lost.  A simple example is this:
-       int a; static int b;
-   The commands `gcc -g -c tmp.c; dump -t tmp.o' gives
-[10]   m   0x00000016         1     0    0x8f  0x0000            .bs
-[11]   m   0x00000000         1     0    0x90  0x0000            .es
-...
-[21]   m   0x00000000        -2     0    0x85  0x0000            b:S-1
-   which is wrong.  The `b:S-1' must be between the `.bs' and `.es'.
-   We can apparently work around the problem by forcing the text section
-   (even if we are already in the text section) immediately before outputting
-   the `.bs'.  This should be fixed in the next major AIX release (3.3?).  */
+/* For static variables, output code to define the start of a static block.  */
 
 #define DBX_STATIC_BLOCK_START(ASMFILE,CODE)                           \
 {                                                                      \
   if ((CODE) == N_STSYM)                                               \
     fprintf ((ASMFILE), "\t.bs\t%s[RW]\n", xcoff_private_data_section_name);\
   else if ((CODE) == N_LCSYM)                                          \
-    {                                                                  \
-      fprintf ((ASMFILE), "%s\n", TEXT_SECTION_ASM_OP);                        \
-      fprintf ((ASMFILE), "\t.bs\t%s\n", xcoff_bss_section_name);      \
-    }                                                                  \
+    fprintf ((ASMFILE), "\t.bs\t%s\n", xcoff_bss_section_name);        \
 }
 
 /* For static variables, output code to define the end of a static block.  */
 
 #define DBX_STATIC_BLOCK_END(ASMFILE,CODE)                             \
 {                                                                      \
-  if (current_sym_code == N_STSYM || current_sym_code == N_LCSYM)      \
-    fprintf (asmfile, "\t.es\n");                                      \
+  if ((CODE) == N_STSYM || (CODE) == N_LCSYM)                          \
+    fputs ("\t.es\n", (ASMFILE));                                      \
 }
 
 /* We must use N_RPYSM instead of N_RSYM for register parameters.  */
   if (current_sym_addr && current_sym_code == N_FUN            \
       && GET_CODE (current_sym_addr) == SYMBOL_REF)            \
     {                                                          \
-      char *_p;                                                        \
-      for (_p = XSTR (current_sym_addr, 0); *_p != '[' && *_p; _p++) \
-       fprintf (asmfile, "%c", *_p);                           \
+      const char *_p = XSTR (current_sym_addr, 0);             \
+      if (*_p == '*')                                          \
+       fprintf (asmfile, "%s", _p+1);                          \
+      else                                                     \
+       for (; *_p != '[' && *_p; _p++)                         \
+         fprintf (asmfile, "%c", *_p);                         \
     }                                                          \
   else if (current_sym_addr)                                   \
     output_addr_const (asmfile, current_sym_addr);             \
   else if (current_sym_code == N_GSYM)                         \
-    fprintf (asmfile, "%s", IDENTIFIER_POINTER (DECL_ASSEMBLER_NAME (SYM))); \
+    assemble_name (asmfile, XSTR (XEXP (DECL_RTL (sym), 0), 0)); \
   else                                                         \
     fprintf (asmfile, "%d", current_sym_value);                        \
   fprintf (asmfile, ",%d,0\n", stab_to_sclass (current_sym_code)); \
 #define N_RPSYM 0x8e
 #endif
 
-/* The line number of the beginning of the current function.
-   xcoffout.c needs this so that it can output relative linenumbers.  */
-
-extern int xcoff_begin_function_line;
-
 /* Name of the current include file.  */
 
-extern char *xcoff_current_include_file;
-
-/* Name of the current function file.  This is the file the `.bf' is
-   emitted from.  In case a line is emitted from a different file,
-   (by including that file of course), then the line number will be
-   absolute.  */
-
-extern char *xcoff_current_function_file;
+extern const char *xcoff_current_include_file;
 
 /* Names of bss and data sections.  These should be unique names for each
    compilation unit.  */
@@ -135,61 +130,42 @@ extern char *xcoff_bss_section_name;
 extern char *xcoff_private_data_section_name;
 extern char *xcoff_read_only_section_name;
 
+/* Last source file name mentioned in a NOTE insn.  */
+
+extern const char *xcoff_lastfile;
+
 /* Don't write out path name for main source file.  */
 #define DBX_OUTPUT_MAIN_SOURCE_DIRECTORY(FILE,FILENAME)
 
-/* Write out main source file name using ".file" rather than ".stabs".  */
+/* Write out main source file name using ".file" rather than ".stabs".
+   We don't actually do this here, because the assembler gets confused if there
+   is more than one .file directive.  rs6000_xcoff_file_start is already
+   emitting a .file directory, so we don't output one here also.
+   Initialize xcoff_lastfile.  */
 #define DBX_OUTPUT_MAIN_SOURCE_FILENAME(FILE,FILENAME) \
-  do {                                         \
-    fprintf (FILE, "\t.file\t", FILENAME);     \
-    output_quoted_string (FILE, FILENAME);     \
-    fprintf (FILE, "\n");                      \
-  } while (0)
-
-#define ABS_OR_RELATIVE_LINENO(LINENO)         \
-((xcoff_current_include_file                   \
-  && xcoff_current_include_file != xcoff_current_function_file)        \
- ? (LINENO) : (LINENO) - xcoff_begin_function_line)
-
-/* Output source line numbers via ".line" rather than ".stabd".  */
-#define ASM_OUTPUT_SOURCE_LINE(FILE,LINENUM) \
-  do {                                         \
-    if (xcoff_begin_function_line >= 0)                \
-      fprintf (FILE, "\t.line\t%d\n", ABS_OR_RELATIVE_LINENO (LINENUM)); \
-  } while (0)
-
-/* We don't want to emit source file names in dbx style. */
-#define DBX_OUTPUT_SOURCE_FILENAME(FILE, FILENAME)     \
-{                                                      \
-  if (xcoff_current_include_file)                      \
-    {                                                  \
-      fprintf (FILE, "\t.ei\t");                       \
-      output_quoted_string (FILE, xcoff_current_include_file); \
-      fprintf (FILE, "\n");                            \
-    }                                                  \
-  if (strcmp (main_input_filename, FILENAME))          \
-    {                                                  \
-      fprintf (FILE, "\t.bi\t");                       \
-      output_quoted_string (FILE, FILENAME);           \
-      fprintf (FILE, "\n");                            \
-      xcoff_current_include_file = FILENAME;           \
-    }                                                  \
-  else                                                 \
-    xcoff_current_include_file = NULL;                 \
-}
+  xcoff_lastfile = (FILENAME)
 
 /* If we are still in an include file, its end must be marked.  */
 #define DBX_OUTPUT_MAIN_SOURCE_FILE_END(FILE, FILENAME)        \
 {                                                      \
   if (xcoff_current_include_file)                      \
     {                                                  \
-      fprintf (FILE, "\t.ei\t");                       \
-      output_quoted_string (FILE, xcoff_current_include_file); \
-      fprintf (FILE, "\n");                            \
+      fputs ("\t.ei\t", (FILE));                       \
+      output_quoted_string ((FILE), xcoff_current_include_file);       \
+      putc ('\n', (FILE));                             \
       xcoff_current_include_file = NULL;               \
     }                                                  \
 }
 
+/* .stabx has the type in a different place.  */
+#if 0  /* Do not emit any marker for XCOFF until assembler allows XFT_CV.  */
+#define DBX_OUTPUT_GCC_MARKER(FILE) \
+  fprintf ((FILE), "%s\"%s\",0,%d,0\n", ASM_STABS_OP, STABS_GCC_MARKER, \
+          stab_to_sclass (N_GSYM))
+#else
+#define DBX_OUTPUT_GCC_MARKER(FILE)
+#endif
+
 /* Do not break .stabs pseudos into continuations.  */
 #define DBX_CONTIN_LENGTH 0
 
@@ -203,3 +179,27 @@ extern char *xcoff_read_only_section_name;
    can't find them.  */
 
 #define DEBUG_SYMS_TEXT
+
+/* Prototype functions in xcoffout.c.  */
+
+extern int stab_to_sclass (int);
+#ifdef BUFSIZ
+extern void xcoffout_begin_prologue (unsigned int, const char *);
+extern void xcoffout_begin_block (unsigned, unsigned);
+extern void xcoffout_end_epilogue (unsigned int, const char *);
+extern void xcoffout_end_function (unsigned int);
+extern void xcoffout_end_block (unsigned, unsigned);
+#endif /* BUFSIZ */
+
+#ifdef TREE_CODE
+extern void xcoff_output_standard_types (tree);
+#ifdef BUFSIZ
+extern void xcoffout_declare_function (FILE *, tree, const char *);
+#endif /* BUFSIZ */
+#endif /* TREE_CODE */
+
+#ifdef RTX_CODE
+#ifdef BUFSIZ
+extern void xcoffout_source_line (unsigned int, const char *);
+#endif /* BUFSIZ */
+#endif /* RTX_CODE */