Subversion Repositories openrisc

/* Generic stabs parsing for gas.

/* Generic stabs parsing for gas.

   Copyright 1989, 1990, 1991, 1993, 1995, 1996, 1997, 1998, 2000, 2001

   Copyright 1989, 1990, 1991, 1993, 1995, 1996, 1997, 1998, 2000, 2001

   2002, 2003, 2004, 2005, 2007 Free Software Foundation, Inc.

   2002, 2003, 2004, 2005, 2007 Free Software Foundation, Inc.

   This file is part of GAS, the GNU Assembler.

   This file is part of GAS, the GNU Assembler.

   GAS is free software; you can redistribute it and/or modify

   GAS is free software; you can redistribute it and/or modify

   it under the terms of the GNU General Public License as

   it under the terms of the GNU General Public License as

   published by the Free Software Foundation; either version 3,

   published by the Free Software Foundation; either version 3,

   or (at your option) any later version.

   or (at your option) any later version.

   GAS is distributed in the hope that it will be useful, but

   GAS is distributed in the hope that it will be useful, but

   WITHOUT ANY WARRANTY; without even the implied warranty of

   WITHOUT ANY WARRANTY; without even the implied warranty of

   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See

   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See

   the GNU General Public License for more details.

   the GNU General Public License for more details.

   You should have received a copy of the GNU General Public License

   You should have received a copy of the GNU General Public License

   along with GAS; see the file COPYING.  If not, write to the Free

   along with GAS; see the file COPYING.  If not, write to the Free

   Software Foundation, 51 Franklin Street - Fifth Floor, Boston, MA

   Software Foundation, 51 Franklin Street - Fifth Floor, Boston, MA

   02110-1301, USA.  */

   02110-1301, USA.  */

#include "as.h"

#include "as.h"

#include "obstack.h"

#include "obstack.h"

#include "subsegs.h"

#include "subsegs.h"

#include "ecoff.h"

#include "ecoff.h"

/* We need this, despite the apparent object format dependency, since

/* We need this, despite the apparent object format dependency, since

   it defines stab types, which all object formats can use now.  */

   it defines stab types, which all object formats can use now.  */

#include "aout/stab_gnu.h"

#include "aout/stab_gnu.h"

/* Holds whether the assembler is generating stabs line debugging

/* Holds whether the assembler is generating stabs line debugging

   information or not.  Potentially used by md_cleanup function.  */

   information or not.  Potentially used by md_cleanup function.  */

int outputting_stabs_line_debug = 0;

int outputting_stabs_line_debug = 0;

static void s_stab_generic (int, char *, char *);

static void s_stab_generic (int, char *, char *);

static void generate_asm_file (int, char *);

static void generate_asm_file (int, char *);

/* Allow backends to override the names used for the stab sections.  */

/* Allow backends to override the names used for the stab sections.  */

#ifndef STAB_SECTION_NAME

#ifndef STAB_SECTION_NAME

#define STAB_SECTION_NAME ".stab"

#define STAB_SECTION_NAME ".stab"

#endif

#endif

#ifndef STAB_STRING_SECTION_NAME

#ifndef STAB_STRING_SECTION_NAME

#define STAB_STRING_SECTION_NAME ".stabstr"

#define STAB_STRING_SECTION_NAME ".stabstr"

#endif

#endif

/* Non-zero if we're in the middle of a .func function, in which case

/* Non-zero if we're in the middle of a .func function, in which case

   stabs_generate_asm_lineno emits function relative line number stabs.

   stabs_generate_asm_lineno emits function relative line number stabs.

   Otherwise it emits line number stabs with absolute addresses.  Note that

   Otherwise it emits line number stabs with absolute addresses.  Note that

   both cases only apply to assembler code assembled with -gstabs.  */

   both cases only apply to assembler code assembled with -gstabs.  */

static int in_dot_func_p;

static int in_dot_func_p;

/* Label at start of current function if in_dot_func_p != 0.  */

/* Label at start of current function if in_dot_func_p != 0.  */

static const char *current_function_label;

static const char *current_function_label;

/*

/*

 * Handle .stabX directives, which used to be open-coded.

 * Handle .stabX directives, which used to be open-coded.

 * So much creeping featurism overloaded the semantics that we decided

 * So much creeping featurism overloaded the semantics that we decided

 * to put all .stabX thinking in one place. Here.

 * to put all .stabX thinking in one place. Here.

 *

 *

 * We try to make any .stabX directive legal. Other people's AS will often

 * We try to make any .stabX directive legal. Other people's AS will often

 * do assembly-time consistency checks: eg assigning meaning to n_type bits

 * do assembly-time consistency checks: eg assigning meaning to n_type bits

 * and "protecting" you from setting them to certain values. (They also zero

 * and "protecting" you from setting them to certain values. (They also zero

 * certain bits before emitting symbols. Tut tut.)

 * certain bits before emitting symbols. Tut tut.)

 *

 *

 * If an expression is not absolute we either gripe or use the relocation

 * If an expression is not absolute we either gripe or use the relocation

 * information. Other people's assemblers silently forget information they

 * information. Other people's assemblers silently forget information they

 * don't need and invent information they need that you didn't supply.

 * don't need and invent information they need that you didn't supply.

 */

 */

/*

/*

 * Build a string dictionary entry for a .stabX symbol.

 * Build a string dictionary entry for a .stabX symbol.

 * The symbol is added to the .<secname>str section.

 * The symbol is added to the .<secname>str section.

 */

 */

#ifndef SEPARATE_STAB_SECTIONS

#ifndef SEPARATE_STAB_SECTIONS

#define SEPARATE_STAB_SECTIONS 0

#define SEPARATE_STAB_SECTIONS 0

#endif

#endif

unsigned int

unsigned int

get_stab_string_offset (const char *string, const char *stabstr_secname)

get_stab_string_offset (const char *string, const char *stabstr_secname)

{

{

  unsigned int length;

  unsigned int length;

  unsigned int retval;

  unsigned int retval;

  segT save_seg;

  segT save_seg;

  subsegT save_subseg;

  subsegT save_subseg;

  segT seg;

  segT seg;

  char *p;

  char *p;

  if (! SEPARATE_STAB_SECTIONS)

  if (! SEPARATE_STAB_SECTIONS)

    abort ();

    abort ();

  length = strlen (string);

  length = strlen (string);

  save_seg = now_seg;

  save_seg = now_seg;

  save_subseg = now_subseg;

  save_subseg = now_subseg;

  /* Create the stab string section.  */

  /* Create the stab string section.  */

  seg = subseg_new (stabstr_secname, 0);

  seg = subseg_new (stabstr_secname, 0);

  retval = seg_info (seg)->stabu.stab_string_size;

  retval = seg_info (seg)->stabu.stab_string_size;

  if (retval <= 0)

  if (retval <= 0)

    {

    {

      /* Make sure the first string is empty.  */

      /* Make sure the first string is empty.  */

      p = frag_more (1);

      p = frag_more (1);

      *p = 0;

      *p = 0;

      retval = seg_info (seg)->stabu.stab_string_size = 1;

      retval = seg_info (seg)->stabu.stab_string_size = 1;

      bfd_set_section_flags (stdoutput, seg, SEC_READONLY | SEC_DEBUGGING);

      bfd_set_section_flags (stdoutput, seg, SEC_READONLY | SEC_DEBUGGING);

      if (seg->name == stabstr_secname)

      if (seg->name == stabstr_secname)

        seg->name = xstrdup (stabstr_secname);

        seg->name = xstrdup (stabstr_secname);

    }

    }

  if (length > 0)

  if (length > 0)

    {                           /* Ordinary case.  */

    {                           /* Ordinary case.  */

      p = frag_more (length + 1);

      p = frag_more (length + 1);

      strcpy (p, string);

      strcpy (p, string);

      seg_info (seg)->stabu.stab_string_size += length + 1;

      seg_info (seg)->stabu.stab_string_size += length + 1;

    }

    }

  else

  else

    retval = 0;

    retval = 0;

  subseg_set (save_seg, save_subseg);

  subseg_set (save_seg, save_subseg);

  return retval;

  return retval;

}

}

#ifdef AOUT_STABS

#ifdef AOUT_STABS

#ifndef OBJ_PROCESS_STAB

#ifndef OBJ_PROCESS_STAB

#define OBJ_PROCESS_STAB(SEG,W,S,T,O,D) aout_process_stab(W,S,T,O,D)

#define OBJ_PROCESS_STAB(SEG,W,S,T,O,D) aout_process_stab(W,S,T,O,D)

#endif

#endif

/* Here instead of obj-aout.c because other formats use it too.  */

/* Here instead of obj-aout.c because other formats use it too.  */

void

void

aout_process_stab (what, string, type, other, desc)

aout_process_stab (what, string, type, other, desc)

     int what;

     int what;

     const char *string;

     const char *string;

     int type, other, desc;

     int type, other, desc;

{

{

  /* Put the stab information in the symbol table.  */

  /* Put the stab information in the symbol table.  */

  symbolS *symbol;

  symbolS *symbol;

  /* Create the symbol now, but only insert it into the symbol chain

  /* Create the symbol now, but only insert it into the symbol chain

     after any symbols mentioned in the value expression get into the

     after any symbols mentioned in the value expression get into the

     symbol chain.  This is to avoid "continuation symbols" (where one

     symbol chain.  This is to avoid "continuation symbols" (where one

     ends in "\" and the debug info is continued in the next .stabs

     ends in "\" and the debug info is continued in the next .stabs

     directive) from being separated by other random symbols.  */

     directive) from being separated by other random symbols.  */

  symbol = symbol_create (string, undefined_section, 0,

  symbol = symbol_create (string, undefined_section, 0,

                          &zero_address_frag);

                          &zero_address_frag);

  if (what == 's' || what == 'n')

  if (what == 's' || what == 'n')

    {

    {

      /* Pick up the value from the input line.  */

      /* Pick up the value from the input line.  */

      pseudo_set (symbol);

      pseudo_set (symbol);

    }

    }

  else

  else

    {

    {

      /* .stabd sets the name to NULL.  Why?  */

      /* .stabd sets the name to NULL.  Why?  */

      S_SET_NAME (symbol, NULL);

      S_SET_NAME (symbol, NULL);

      symbol_set_frag (symbol, frag_now);

      symbol_set_frag (symbol, frag_now);

      S_SET_VALUE (symbol, (valueT) frag_now_fix ());

      S_SET_VALUE (symbol, (valueT) frag_now_fix ());

    }

    }

  symbol_append (symbol, symbol_lastP, &symbol_rootP, &symbol_lastP);

  symbol_append (symbol, symbol_lastP, &symbol_rootP, &symbol_lastP);

  symbol_get_bfdsym (symbol)->flags |= BSF_DEBUGGING;

  symbol_get_bfdsym (symbol)->flags |= BSF_DEBUGGING;

  S_SET_TYPE (symbol, type);

  S_SET_TYPE (symbol, type);

  S_SET_OTHER (symbol, other);

  S_SET_OTHER (symbol, other);

  S_SET_DESC (symbol, desc);

  S_SET_DESC (symbol, desc);

}

}

#endif

#endif

/* This can handle different kinds of stabs (s,n,d) and different

/* This can handle different kinds of stabs (s,n,d) and different

   kinds of stab sections.  */

   kinds of stab sections.  */

static void

static void

s_stab_generic (int what, char *stab_secname, char *stabstr_secname)

s_stab_generic (int what, char *stab_secname, char *stabstr_secname)

{

{

  long longint;

  long longint;

  char *string, *saved_string_obstack_end;

  char *string, *saved_string_obstack_end;

  int type;

  int type;

  int other;

  int other;

  int desc;

  int desc;

  /* The general format is:

  /* The general format is:

     .stabs "STRING",TYPE,OTHER,DESC,VALUE

     .stabs "STRING",TYPE,OTHER,DESC,VALUE

     .stabn TYPE,OTHER,DESC,VALUE

     .stabn TYPE,OTHER,DESC,VALUE

     .stabd TYPE,OTHER,DESC

     .stabd TYPE,OTHER,DESC

     At this point input_line_pointer points after the pseudo-op and

     At this point input_line_pointer points after the pseudo-op and

     any trailing whitespace.  The argument what is one of 's', 'n' or

     any trailing whitespace.  The argument what is one of 's', 'n' or

     'd' indicating which type of .stab this is.  */

     'd' indicating which type of .stab this is.  */

  if (what != 's')

  if (what != 's')

    {

    {

      string = "";

      string = "";

      saved_string_obstack_end = 0;

      saved_string_obstack_end = 0;

    }

    }

  else

  else

    {

    {

      int length;

      int length;

      string = demand_copy_C_string (&length);

      string = demand_copy_C_string (&length);

      /* FIXME: We should probably find some other temporary storage

      /* FIXME: We should probably find some other temporary storage

         for string, rather than leaking memory if someone else

         for string, rather than leaking memory if someone else

         happens to use the notes obstack.  */

         happens to use the notes obstack.  */

      saved_string_obstack_end = notes.next_free;

      saved_string_obstack_end = notes.next_free;

      SKIP_WHITESPACE ();

      SKIP_WHITESPACE ();

      if (*input_line_pointer == ',')

      if (*input_line_pointer == ',')

        input_line_pointer++;

        input_line_pointer++;

      else

      else

        {

        {

          as_warn (_(".stab%c: missing comma"), what);

          as_warn (_(".stab%c: missing comma"), what);

          ignore_rest_of_line ();

          ignore_rest_of_line ();

          return;

          return;

        }

        }

    }

    }

  if (get_absolute_expression_and_terminator (&longint) != ',')

  if (get_absolute_expression_and_terminator (&longint) != ',')

    {

    {

      as_warn (_(".stab%c: missing comma"), what);

      as_warn (_(".stab%c: missing comma"), what);

      ignore_rest_of_line ();

      ignore_rest_of_line ();

      return;

      return;

    }

    }

  type = longint;

  type = longint;

  if (get_absolute_expression_and_terminator (&longint) != ',')

  if (get_absolute_expression_and_terminator (&longint) != ',')

    {

    {

      as_warn (_(".stab%c: missing comma"), what);

      as_warn (_(".stab%c: missing comma"), what);

      ignore_rest_of_line ();

      ignore_rest_of_line ();

      return;

      return;

    }

    }

  other = longint;

  other = longint;

  desc = get_absolute_expression ();

  desc = get_absolute_expression ();

  if ((desc > 0xffff) || (desc < -0x8000))

  if ((desc > 0xffff) || (desc < -0x8000))

    /* This could happen for example with a source file with a huge

    /* This could happen for example with a source file with a huge

       number of lines.  The only cure is to use a different debug

       number of lines.  The only cure is to use a different debug

       format, probably DWARF.  */

       format, probably DWARF.  */

    as_warn (_(".stab%c: description field '%x' too big, try a different debug format"),

    as_warn (_(".stab%c: description field '%x' too big, try a different debug format"),

             what, desc);

             what, desc);

  if (what == 's' || what == 'n')

  if (what == 's' || what == 'n')

    {

    {

      if (*input_line_pointer != ',')

      if (*input_line_pointer != ',')

        {

        {

          as_warn (_(".stab%c: missing comma"), what);

          as_warn (_(".stab%c: missing comma"), what);

          ignore_rest_of_line ();

          ignore_rest_of_line ();

          return;

          return;

        }

        }

      input_line_pointer++;

      input_line_pointer++;

      SKIP_WHITESPACE ();

      SKIP_WHITESPACE ();

    }

    }

#ifdef TC_PPC

#ifdef TC_PPC

#ifdef OBJ_ELF

#ifdef OBJ_ELF

  /* Solaris on PowerPC has decided that .stabd can take 4 arguments, so if we were

  /* Solaris on PowerPC has decided that .stabd can take 4 arguments, so if we were

     given 4 arguments, make it a .stabn */

     given 4 arguments, make it a .stabn */

  else if (what == 'd')

  else if (what == 'd')

    {

    {

      char *save_location = input_line_pointer;

      char *save_location = input_line_pointer;

      SKIP_WHITESPACE ();

      SKIP_WHITESPACE ();

      if (*input_line_pointer == ',')

      if (*input_line_pointer == ',')

        {

        {

          input_line_pointer++;

          input_line_pointer++;

          what = 'n';

          what = 'n';

        }

        }

      else

      else

        input_line_pointer = save_location;

        input_line_pointer = save_location;

    }

    }

#endif /* OBJ_ELF */

#endif /* OBJ_ELF */

#endif /* TC_PPC */

#endif /* TC_PPC */

#ifndef NO_LISTING

#ifndef NO_LISTING

  if (listing)

  if (listing)

    {

    {

      switch (type)

      switch (type)

        {

        {

        case N_SLINE:

        case N_SLINE:

          listing_source_line ((unsigned int) desc);

          listing_source_line ((unsigned int) desc);

          break;

          break;

        case N_SO:

        case N_SO:

        case N_SOL:

        case N_SOL:

          listing_source_file (string);

          listing_source_file (string);

          break;

          break;

        }

        }

    }

    }

#endif /* ! NO_LISTING */

#endif /* ! NO_LISTING */

  /* We have now gathered the type, other, and desc information.  For

  /* We have now gathered the type, other, and desc information.  For

     .stabs or .stabn, input_line_pointer is now pointing at the

     .stabs or .stabn, input_line_pointer is now pointing at the

     value.  */

     value.  */

  if (SEPARATE_STAB_SECTIONS)

  if (SEPARATE_STAB_SECTIONS)

    /* Output the stab information in a separate section.  This is used

    /* Output the stab information in a separate section.  This is used

       at least for COFF and ELF.  */

       at least for COFF and ELF.  */

    {

    {

      segT saved_seg = now_seg;

      segT saved_seg = now_seg;

      subsegT saved_subseg = now_subseg;

      subsegT saved_subseg = now_subseg;

      fragS *saved_frag = frag_now;

      fragS *saved_frag = frag_now;

      valueT dot;

      valueT dot;

      segT seg;

      segT seg;

      unsigned int stroff;

      unsigned int stroff;

      char *p;

      char *p;

      static segT cached_sec;

      static segT cached_sec;

      static char *cached_secname;

      static char *cached_secname;

      dot = frag_now_fix ();

      dot = frag_now_fix ();

#ifdef md_flush_pending_output

#ifdef md_flush_pending_output

      md_flush_pending_output ();

      md_flush_pending_output ();

#endif

#endif

      if (cached_secname && !strcmp (cached_secname, stab_secname))

      if (cached_secname && !strcmp (cached_secname, stab_secname))

        {

        {

          seg = cached_sec;

          seg = cached_sec;

          subseg_set (seg, 0);

          subseg_set (seg, 0);

        }

        }

      else

      else

        {

        {

          seg = subseg_new (stab_secname, 0);

          seg = subseg_new (stab_secname, 0);

          if (cached_secname)

          if (cached_secname)

            free (cached_secname);

            free (cached_secname);

          cached_secname = xstrdup (stab_secname);

          cached_secname = xstrdup (stab_secname);

          cached_sec = seg;

          cached_sec = seg;

        }

        }

      if (! seg_info (seg)->hadone)

      if (! seg_info (seg)->hadone)

        {

        {

          bfd_set_section_flags (stdoutput, seg,

          bfd_set_section_flags (stdoutput, seg,

                                 SEC_READONLY | SEC_RELOC | SEC_DEBUGGING);

                                 SEC_READONLY | SEC_RELOC | SEC_DEBUGGING);

#ifdef INIT_STAB_SECTION

#ifdef INIT_STAB_SECTION

          INIT_STAB_SECTION (seg);

          INIT_STAB_SECTION (seg);

#endif

#endif

          seg_info (seg)->hadone = 1;

          seg_info (seg)->hadone = 1;

        }

        }

      stroff = get_stab_string_offset (string, stabstr_secname);

      stroff = get_stab_string_offset (string, stabstr_secname);

      if (what == 's')

      if (what == 's')

        {

        {

          /* Release the string, if nobody else has used the obstack.  */

          /* Release the string, if nobody else has used the obstack.  */

          if (saved_string_obstack_end == notes.next_free)

          if (saved_string_obstack_end == notes.next_free)

            obstack_free (&notes, string);

            obstack_free (&notes, string);

        }

        }

      /* At least for now, stabs in a special stab section are always

      /* At least for now, stabs in a special stab section are always

         output as 12 byte blocks of information.  */

         output as 12 byte blocks of information.  */

      p = frag_more (8);

      p = frag_more (8);

      md_number_to_chars (p, (valueT) stroff, 4);

      md_number_to_chars (p, (valueT) stroff, 4);

      md_number_to_chars (p + 4, (valueT) type, 1);

      md_number_to_chars (p + 4, (valueT) type, 1);

      md_number_to_chars (p + 5, (valueT) other, 1);

      md_number_to_chars (p + 5, (valueT) other, 1);

      md_number_to_chars (p + 6, (valueT) desc, 2);

      md_number_to_chars (p + 6, (valueT) desc, 2);

      if (what == 's' || what == 'n')

      if (what == 's' || what == 'n')

        {

        {

          /* Pick up the value from the input line.  */

          /* Pick up the value from the input line.  */

          cons (4);

          cons (4);

          input_line_pointer--;

          input_line_pointer--;

        }

        }

      else

      else

        {

        {

          symbolS *symbol;

          symbolS *symbol;

          expressionS exp;

          expressionS exp;

          /* Arrange for a value representing the current location.  */

          /* Arrange for a value representing the current location.  */

          symbol = symbol_temp_new (saved_seg, dot, saved_frag);

          symbol = symbol_temp_new (saved_seg, dot, saved_frag);

          exp.X_op = O_symbol;

          exp.X_op = O_symbol;

          exp.X_add_symbol = symbol;

          exp.X_add_symbol = symbol;

          exp.X_add_number = 0;

          exp.X_add_number = 0;

          emit_expr (&exp, 4);

          emit_expr (&exp, 4);

        }

        }

#ifdef OBJ_PROCESS_STAB

#ifdef OBJ_PROCESS_STAB

      OBJ_PROCESS_STAB (seg, what, string, type, other, desc);

      OBJ_PROCESS_STAB (seg, what, string, type, other, desc);

#endif

#endif

      subseg_set (saved_seg, saved_subseg);

      subseg_set (saved_seg, saved_subseg);

    }

    }

  else

  else

    {

    {

#ifdef OBJ_PROCESS_STAB

#ifdef OBJ_PROCESS_STAB

      OBJ_PROCESS_STAB (0, what, string, type, other, desc);

      OBJ_PROCESS_STAB (0, what, string, type, other, desc);

#else

#else

      abort ();

      abort ();

#endif

#endif

    }

    }

  demand_empty_rest_of_line ();

  demand_empty_rest_of_line ();

}

}

/* Regular stab directive.  */

/* Regular stab directive.  */

void

void

s_stab (int what)

s_stab (int what)

{

{

  s_stab_generic (what, STAB_SECTION_NAME, STAB_STRING_SECTION_NAME);

  s_stab_generic (what, STAB_SECTION_NAME, STAB_STRING_SECTION_NAME);

}

}

/* "Extended stabs", used in Solaris only now.  */

/* "Extended stabs", used in Solaris only now.  */

void

void

s_xstab (int what)

s_xstab (int what)

{

{

  int length;

  int length;

  char *stab_secname, *stabstr_secname;

  char *stab_secname, *stabstr_secname;

  static char *saved_secname, *saved_strsecname;

  static char *saved_secname, *saved_strsecname;

  /* @@ MEMORY LEAK: This allocates a copy of the string, but in most

  /* @@ MEMORY LEAK: This allocates a copy of the string, but in most

     cases it will be the same string, so we could release the storage

     cases it will be the same string, so we could release the storage

     back to the obstack it came from.  */

     back to the obstack it came from.  */

  stab_secname = demand_copy_C_string (&length);

  stab_secname = demand_copy_C_string (&length);

  SKIP_WHITESPACE ();

  SKIP_WHITESPACE ();

  if (*input_line_pointer == ',')

  if (*input_line_pointer == ',')

    input_line_pointer++;

    input_line_pointer++;

  else

  else

    {

    {

      as_bad (_("comma missing in .xstabs"));

      as_bad (_("comma missing in .xstabs"));

      ignore_rest_of_line ();

      ignore_rest_of_line ();

      return;

      return;

    }

    }

  /* To get the name of the stab string section, simply add "str" to

  /* To get the name of the stab string section, simply add "str" to

     the stab section name.  */

     the stab section name.  */

  if (saved_secname == 0 || strcmp (saved_secname, stab_secname))

  if (saved_secname == 0 || strcmp (saved_secname, stab_secname))

    {

    {

      stabstr_secname = (char *) xmalloc (strlen (stab_secname) + 4);

      stabstr_secname = (char *) xmalloc (strlen (stab_secname) + 4);

      strcpy (stabstr_secname, stab_secname);

      strcpy (stabstr_secname, stab_secname);

      strcat (stabstr_secname, "str");

      strcat (stabstr_secname, "str");

      if (saved_secname)

      if (saved_secname)

        {

        {

          free (saved_secname);

          free (saved_secname);

          free (saved_strsecname);

          free (saved_strsecname);

        }

        }

      saved_secname = stab_secname;

      saved_secname = stab_secname;

      saved_strsecname = stabstr_secname;

      saved_strsecname = stabstr_secname;

    }

    }

  s_stab_generic (what, saved_secname, saved_strsecname);

  s_stab_generic (what, saved_secname, saved_strsecname);

}

}

#ifdef S_SET_DESC

#ifdef S_SET_DESC

/* Frob invented at RMS' request. Set the n_desc of a symbol.  */

/* Frob invented at RMS' request. Set the n_desc of a symbol.  */

void

void

s_desc (ignore)

s_desc (ignore)

     int ignore ATTRIBUTE_UNUSED;

     int ignore ATTRIBUTE_UNUSED;

{

{

  char *name;

  char *name;

  char c;

  char c;

  char *p;

  char *p;

  symbolS *symbolP;

  symbolS *symbolP;

  int temp;

  int temp;

  name = input_line_pointer;

  name = input_line_pointer;

  c = get_symbol_end ();

  c = get_symbol_end ();

  p = input_line_pointer;

  p = input_line_pointer;

  *p = c;

  *p = c;

  SKIP_WHITESPACE ();

  SKIP_WHITESPACE ();

  if (*input_line_pointer != ',')

  if (*input_line_pointer != ',')

    {

    {

      *p = 0;

      *p = 0;

      as_bad (_("expected comma after \"%s\""), name);

      as_bad (_("expected comma after \"%s\""), name);

      *p = c;

      *p = c;

      ignore_rest_of_line ();

      ignore_rest_of_line ();

    }

    }

  else

  else

    {

    {

      input_line_pointer++;

      input_line_pointer++;

      temp = get_absolute_expression ();

      temp = get_absolute_expression ();

      *p = 0;

      *p = 0;

      symbolP = symbol_find_or_make (name);

      symbolP = symbol_find_or_make (name);

      *p = c;

      *p = c;

      S_SET_DESC (symbolP, temp);

      S_SET_DESC (symbolP, temp);

    }

    }

  demand_empty_rest_of_line ();

  demand_empty_rest_of_line ();

}                               /* s_desc() */

}                               /* s_desc() */

#endif /* defined (S_SET_DESC) */

#endif /* defined (S_SET_DESC) */

/* Generate stabs debugging information to denote the main source file.  */

/* Generate stabs debugging information to denote the main source file.  */

void

void

stabs_generate_asm_file (void)

stabs_generate_asm_file (void)

{

{

  char *file;

  char *file;

  unsigned int lineno;

  unsigned int lineno;

  as_where (&file, &lineno);

  as_where (&file, &lineno);

  if (use_gnu_debug_info_extensions)

  if (use_gnu_debug_info_extensions)

    {

    {

      const char *dir;

      const char *dir;

      char *dir2;

      char *dir2;

      dir = remap_debug_filename (getpwd ());

      dir = remap_debug_filename (getpwd ());

      dir2 = alloca (strlen (dir) + 2);

      dir2 = alloca (strlen (dir) + 2);

      sprintf (dir2, "%s%s", dir, "/");

      sprintf (dir2, "%s%s", dir, "/");

      generate_asm_file (N_SO, dir2);

      generate_asm_file (N_SO, dir2);

    }

    }

  generate_asm_file (N_SO, file);

  generate_asm_file (N_SO, file);

}

}

/* Generate stabs debugging information to denote the source file.

/* Generate stabs debugging information to denote the source file.

   TYPE is one of N_SO, N_SOL.  */

   TYPE is one of N_SO, N_SOL.  */

static void

static void

generate_asm_file (int type, char *file)

generate_asm_file (int type, char *file)

{

{

  static char *last_file;

  static char *last_file;

  static int label_count;

  static int label_count;

  char *hold;

  char *hold;

  char sym[30];

  char sym[30];

  char *buf;

  char *buf;

  char *tmp = file;

  char *tmp = file;

  char *endp = file + strlen (file);

  char *endp = file + strlen (file);

  char *bufp;

  char *bufp;

  if (last_file != NULL

  if (last_file != NULL

      && strcmp (last_file, file) == 0)

      && strcmp (last_file, file) == 0)

    return;

    return;

  /* Rather than try to do this in some efficient fashion, we just

  /* Rather than try to do this in some efficient fashion, we just

     generate a string and then parse it again.  That lets us use the

     generate a string and then parse it again.  That lets us use the

     existing stabs hook, which expect to see a string, rather than

     existing stabs hook, which expect to see a string, rather than

     inventing new ones.  */

     inventing new ones.  */

  hold = input_line_pointer;

  hold = input_line_pointer;

  sprintf (sym, "%sF%d", FAKE_LABEL_NAME, label_count);

  sprintf (sym, "%sF%d", FAKE_LABEL_NAME, label_count);

  ++label_count;

  ++label_count;

  /* Allocate enough space for the file name (possibly extended with

  /* Allocate enough space for the file name (possibly extended with

     doubled up backslashes), the symbol name, and the other characters

     doubled up backslashes), the symbol name, and the other characters

     that make up a stabs file directive.  */

     that make up a stabs file directive.  */

  bufp = buf = xmalloc (2 * strlen (file) + strlen (sym) + 12);

  bufp = buf = xmalloc (2 * strlen (file) + strlen (sym) + 12);

  *bufp++ = '"';

  *bufp++ = '"';

  while (tmp < endp)

  while (tmp < endp)

    {

    {

      char *bslash = strchr (tmp, '\\');

      char *bslash = strchr (tmp, '\\');

      size_t len = (bslash) ? (size_t) (bslash - tmp + 1) : strlen (tmp);

      size_t len = (bslash) ? (size_t) (bslash - tmp + 1) : strlen (tmp);

      /* Double all backslashes, since demand_copy_C_string (used by

      /* Double all backslashes, since demand_copy_C_string (used by

         s_stab to extract the part in quotes) will try to replace them as

         s_stab to extract the part in quotes) will try to replace them as

         escape sequences.  backslash may appear in a filespec.  */

         escape sequences.  backslash may appear in a filespec.  */

      strncpy (bufp, tmp, len);

      strncpy (bufp, tmp, len);

      tmp += len;

      tmp += len;

      bufp += len;

      bufp += len;

      if (bslash != NULL)

      if (bslash != NULL)

        *bufp++ = '\\';

        *bufp++ = '\\';

    }

    }

  sprintf (bufp, "\",%d,0,0,%s\n", type, sym);

  sprintf (bufp, "\",%d,0,0,%s\n", type, sym);

  input_line_pointer = buf;

  input_line_pointer = buf;

  s_stab ('s');

  s_stab ('s');

  colon (sym);

  colon (sym);

  if (last_file != NULL)

  if (last_file != NULL)

    free (last_file);

    free (last_file);

  last_file = xstrdup (file);

  last_file = xstrdup (file);

  free (buf);

  free (buf);

  input_line_pointer = hold;

  input_line_pointer = hold;

}

}

/* Generate stabs debugging information for the current line.  This is

/* Generate stabs debugging information for the current line.  This is

   used to produce debugging information for an assembler file.  */

   used to produce debugging information for an assembler file.  */

void

void

stabs_generate_asm_lineno (void)

stabs_generate_asm_lineno (void)

{

{

  static int label_count;

  static int label_count;

  char *hold;

  char *hold;