/* Fortran language support routines for GDB, the GNU debugger. Copyright 1993, 1994, 1996, 2000 Free Software Foundation, Inc. Contributed by Motorola. Adapted from the C parser by Farooq Butt (fmbutt@engage.sps.mot.com). This file is part of GDB. This program 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 of the License, or (at your option) any later version. This program 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 this program; if not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ #include "defs.h" #include "gdb_string.h" #include "symtab.h" #include "gdbtypes.h" #include "expression.h" #include "parser-defs.h" #include "language.h" #include "f-lang.h" #include "valprint.h" /* The built-in types of F77. FIXME: integer*4 is missing, plain logical is missing (builtin_type_logical is logical*4). */ struct type *builtin_type_f_character; struct type *builtin_type_f_logical; struct type *builtin_type_f_logical_s1; struct type *builtin_type_f_logical_s2; struct type *builtin_type_f_integer; struct type *builtin_type_f_integer_s2; struct type *builtin_type_f_real; struct type *builtin_type_f_real_s8; struct type *builtin_type_f_real_s16; struct type *builtin_type_f_complex_s8; struct type *builtin_type_f_complex_s16; struct type *builtin_type_f_complex_s32; struct type *builtin_type_f_void; /* Following is dubious stuff that had been in the xcoff reader. */ struct saved_fcn { long line_offset; /* Line offset for function */ struct saved_fcn *next; }; struct saved_bf_symnum { long symnum_fcn; /* Symnum of function (i.e. .function directive) */ long symnum_bf; /* Symnum of .bf for this function */ struct saved_bf_symnum *next; }; typedef struct saved_fcn SAVED_FUNCTION, *SAVED_FUNCTION_PTR; typedef struct saved_bf_symnum SAVED_BF, *SAVED_BF_PTR; /* Local functions */ extern void _initialize_f_language (void); #if 0 static void clear_function_list (void); static long get_bf_for_fcn (long); static void clear_bf_list (void); static void patch_all_commons_by_name (char *, CORE_ADDR, int); static SAVED_F77_COMMON_PTR find_first_common_named (char *); static void add_common_entry (struct symbol *); static void add_common_block (char *, CORE_ADDR, int, char *); static SAVED_FUNCTION *allocate_saved_function_node (void); static SAVED_BF_PTR allocate_saved_bf_node (void); static COMMON_ENTRY_PTR allocate_common_entry_node (void); static SAVED_F77_COMMON_PTR allocate_saved_f77_common_node (void); static void patch_common_entries (SAVED_F77_COMMON_PTR, CORE_ADDR, int); #endif static struct type *f_create_fundamental_type (struct objfile *, int); static void f_printstr (struct ui_file * stream, char *string, unsigned int length, int width, int force_ellipses); static void f_printchar (int c, struct ui_file * stream); static void f_emit_char (int c, struct ui_file * stream, int quoter); /* Print the character C on STREAM as part of the contents of a literal string whose delimiter is QUOTER. Note that that format for printing characters and strings is language specific. FIXME: This is a copy of the same function from c-exp.y. It should be replaced with a true F77 version. */ static void f_emit_char (register int c, struct ui_file *stream, int quoter) { c &= 0xFF; /* Avoid sign bit follies */ if (PRINT_LITERAL_FORM (c)) { if (c == '\\' || c == quoter) fputs_filtered ("\\", stream); fprintf_filtered (stream, "%c", c); } else { switch (c) { case '\n': fputs_filtered ("\\n", stream); break; case '\b': fputs_filtered ("\\b", stream); break; case '\t': fputs_filtered ("\\t", stream); break; case '\f': fputs_filtered ("\\f", stream); break; case '\r': fputs_filtered ("\\r", stream); break; case '\033': fputs_filtered ("\\e", stream); break; case '\007': fputs_filtered ("\\a", stream); break; default: fprintf_filtered (stream, "\\%.3o", (unsigned int) c); break; } } } /* FIXME: This is a copy of the same function from c-exp.y. It should be replaced with a true F77version. */ static void f_printchar (int c, struct ui_file *stream) { fputs_filtered ("'", stream); LA_EMIT_CHAR (c, stream, '\''); fputs_filtered ("'", stream); } /* Print the character string STRING, printing at most LENGTH characters. Printing stops early if the number hits print_max; repeat counts are printed as appropriate. Print ellipses at the end if we had to stop before printing LENGTH characters, or if FORCE_ELLIPSES. FIXME: This is a copy of the same function from c-exp.y. It should be replaced with a true F77 version. */ static void f_printstr (struct ui_file *stream, char *string, unsigned int length, int width, int force_ellipses) { register unsigned int i; unsigned int things_printed = 0; int in_quotes = 0; int need_comma = 0; extern int inspect_it; if (length == 0) { fputs_filtered ("''", gdb_stdout); return; } for (i = 0; i < length && things_printed < print_max; ++i) { /* Position of the character we are examining to see whether it is repeated. */ unsigned int rep1; /* Number of repetitions we have detected so far. */ unsigned int reps; QUIT; if (need_comma) { fputs_filtered (", ", stream); need_comma = 0; } rep1 = i + 1; reps = 1; while (rep1 < length && string[rep1] == string[i]) { ++rep1; ++reps; } if (reps > repeat_count_threshold) { if (in_quotes) { if (inspect_it) fputs_filtered ("\\', ", stream); else fputs_filtered ("', ", stream); in_quotes = 0; } f_printchar (string[i], stream); fprintf_filtered (stream, " ", reps); i = rep1 - 1; things_printed += repeat_count_threshold; need_comma = 1; } else { if (!in_quotes) { if (inspect_it) fputs_filtered ("\\'", stream); else fputs_filtered ("'", stream); in_quotes = 1; } LA_EMIT_CHAR (string[i], stream, '"'); ++things_printed; } } /* Terminate the quotes if necessary. */ if (in_quotes) { if (inspect_it) fputs_filtered ("\\'", stream); else fputs_filtered ("'", stream); } if (force_ellipses || i < length) fputs_filtered ("...", stream); } /* FIXME: This is a copy of c_create_fundamental_type(), before all the non-C types were stripped from it. Needs to be fixed by an experienced F77 programmer. */ static struct type * f_create_fundamental_type (struct objfile *objfile, int typeid) { register struct type *type = NULL; switch (typeid) { case FT_VOID: type = init_type (TYPE_CODE_VOID, TARGET_CHAR_BIT / TARGET_CHAR_BIT, 0, "VOID", objfile); break; case FT_BOOLEAN: type = init_type (TYPE_CODE_BOOL, TARGET_CHAR_BIT / TARGET_CHAR_BIT, TYPE_FLAG_UNSIGNED, "boolean", objfile); break; case FT_STRING: type = init_type (TYPE_CODE_STRING, TARGET_CHAR_BIT / TARGET_CHAR_BIT, 0, "string", objfile); break; case FT_CHAR: type = init_type (TYPE_CODE_INT, TARGET_CHAR_BIT / TARGET_CHAR_BIT, 0, "character", objfile); break; case FT_SIGNED_CHAR: type = init_type (TYPE_CODE_INT, TARGET_CHAR_BIT / TARGET_CHAR_BIT, 0, "integer*1", objfile); break; case FT_UNSIGNED_CHAR: type = init_type (TYPE_CODE_BOOL, TARGET_CHAR_BIT / TARGET_CHAR_BIT, TYPE_FLAG_UNSIGNED, "logical*1", objfile); break; case FT_SHORT: type = init_type (TYPE_CODE_INT, TARGET_SHORT_BIT / TARGET_CHAR_BIT, 0, "integer*2", objfile); break; case FT_SIGNED_SHORT: type = init_type (TYPE_CODE_INT, TARGET_SHORT_BIT / TARGET_CHAR_BIT, 0, "short", objfile); /* FIXME-fnf */ break; case FT_UNSIGNED_SHORT: type = init_type (TYPE_CODE_BOOL, TARGET_SHORT_BIT / TARGET_CHAR_BIT, TYPE_FLAG_UNSIGNED, "logical*2", objfile); break; case FT_INTEGER: type = init_type (TYPE_CODE_INT, TARGET_INT_BIT / TARGET_CHAR_BIT, 0, "integer*4", objfile); break; case FT_SIGNED_INTEGER: type = init_type (TYPE_CODE_INT, TARGET_INT_BIT / TARGET_CHAR_BIT, 0, "integer", objfile); /* FIXME -fnf */ break; case FT_UNSIGNED_INTEGER: type = init_type (TYPE_CODE_BOOL, TARGET_INT_BIT / TARGET_CHAR_BIT, TYPE_FLAG_UNSIGNED, "logical*4", objfile); break; case FT_FIXED_DECIMAL: type = init_type (TYPE_CODE_INT, TARGET_INT_BIT / TARGET_CHAR_BIT, 0, "fixed decimal", objfile); break; case FT_LONG: type = init_type (TYPE_CODE_INT, TARGET_LONG_BIT / TARGET_CHAR_BIT, 0, "long", objfile); break; case FT_SIGNED_LONG: type = init_type (TYPE_CODE_INT, TARGET_LONG_BIT / TARGET_CHAR_BIT, 0, "long", objfile); /* FIXME -fnf */ break; case FT_UNSIGNED_LONG: type = init_type (TYPE_CODE_INT, TARGET_LONG_BIT / TARGET_CHAR_BIT, TYPE_FLAG_UNSIGNED, "unsigned long", objfile); break; case FT_LONG_LONG: type = init_type (TYPE_CODE_INT, TARGET_LONG_LONG_BIT / TARGET_CHAR_BIT, 0, "long long", objfile); break; case FT_SIGNED_LONG_LONG: type = init_type (TYPE_CODE_INT, TARGET_LONG_LONG_BIT / TARGET_CHAR_BIT, 0, "signed long long", objfile); break; case FT_UNSIGNED_LONG_LONG: type = init_type (TYPE_CODE_INT, TARGET_LONG_LONG_BIT / TARGET_CHAR_BIT, TYPE_FLAG_UNSIGNED, "unsigned long long", objfile); break; case FT_FLOAT: type = init_type (TYPE_CODE_FLT, TARGET_FLOAT_BIT / TARGET_CHAR_BIT, 0, "real", objfile); break; case FT_DBL_PREC_FLOAT: type = init_type (TYPE_CODE_FLT, TARGET_DOUBLE_BIT / TARGET_CHAR_BIT, 0, "real*8", objfile); break; case FT_FLOAT_DECIMAL: type = init_type (TYPE_CODE_FLT, TARGET_DOUBLE_BIT / TARGET_CHAR_BIT, 0, "floating decimal", objfile); break; case FT_EXT_PREC_FLOAT: type = init_type (TYPE_CODE_FLT, TARGET_LONG_DOUBLE_BIT / TARGET_CHAR_BIT, 0, "real*16", objfile); break; case FT_COMPLEX: type = init_type (TYPE_CODE_COMPLEX, 2 * TARGET_FLOAT_BIT / TARGET_CHAR_BIT, 0, "complex*8", objfile); TYPE_TARGET_TYPE (type) = builtin_type_f_real; break; case FT_DBL_PREC_COMPLEX: type = init_type (TYPE_CODE_COMPLEX, 2 * TARGET_DOUBLE_BIT / TARGET_CHAR_BIT, 0, "complex*16", objfile); TYPE_TARGET_TYPE (type) = builtin_type_f_real_s8; break; case FT_EXT_PREC_COMPLEX: type = init_type (TYPE_CODE_COMPLEX, 2 * TARGET_LONG_DOUBLE_BIT / TARGET_CHAR_BIT, 0, "complex*32", objfile); TYPE_TARGET_TYPE (type) = builtin_type_f_real_s16; break; default: /* FIXME: For now, if we are asked to produce a type not in this language, create the equivalent of a C integer type with the name "". When all the dust settles from the type reconstruction work, this should probably become an error. */ type = init_type (TYPE_CODE_INT, TARGET_INT_BIT / TARGET_CHAR_BIT, 0, "", objfile); warning ("internal error: no F77 fundamental type %d", typeid); break; } return (type); } /* Table of operators and their precedences for printing expressions. */ static const struct op_print f_op_print_tab[] = { {"+", BINOP_ADD, PREC_ADD, 0}, {"+", UNOP_PLUS, PREC_PREFIX, 0}, {"-", BINOP_SUB, PREC_ADD, 0}, {"-", UNOP_NEG, PREC_PREFIX, 0}, {"*", BINOP_MUL, PREC_MUL, 0}, {"/", BINOP_DIV, PREC_MUL, 0}, {"DIV", BINOP_INTDIV, PREC_MUL, 0}, {"MOD", BINOP_REM, PREC_MUL, 0}, {"=", BINOP_ASSIGN, PREC_ASSIGN, 1}, {".OR.", BINOP_LOGICAL_OR, PREC_LOGICAL_OR, 0}, {".AND.", BINOP_LOGICAL_AND, PREC_LOGICAL_AND, 0}, {".NOT.", UNOP_LOGICAL_NOT, PREC_PREFIX, 0}, {".EQ.", BINOP_EQUAL, PREC_EQUAL, 0}, {".NE.", BINOP_NOTEQUAL, PREC_EQUAL, 0}, {".LE.", BINOP_LEQ, PREC_ORDER, 0}, {".GE.", BINOP_GEQ, PREC_ORDER, 0}, {".GT.", BINOP_GTR, PREC_ORDER, 0}, {".LT.", BINOP_LESS, PREC_ORDER, 0}, {"**", UNOP_IND, PREC_PREFIX, 0}, {"@", BINOP_REPEAT, PREC_REPEAT, 0}, {NULL, 0, 0, 0} }; struct type **CONST_PTR (f_builtin_types[]) = { &builtin_type_f_character, &builtin_type_f_logical, &builtin_type_f_logical_s1, &builtin_type_f_logical_s2, &builtin_type_f_integer, &builtin_type_f_integer_s2, &builtin_type_f_real, &builtin_type_f_real_s8, &builtin_type_f_real_s16, &builtin_type_f_complex_s8, &builtin_type_f_complex_s16, #if 0 &builtin_type_f_complex_s32, #endif &builtin_type_f_void, 0 }; /* This is declared in c-lang.h but it is silly to import that file for what is already just a hack. */ extern int c_value_print (struct value *, struct ui_file *, int, enum val_prettyprint); const struct language_defn f_language_defn = { "fortran", language_fortran, f_builtin_types, range_check_on, type_check_on, f_parse, /* parser */ f_error, /* parser error function */ evaluate_subexp_standard, f_printchar, /* Print character constant */ f_printstr, /* function to print string constant */ f_emit_char, /* Function to print a single character */ f_create_fundamental_type, /* Create fundamental type in this language */ f_print_type, /* Print a type using appropriate syntax */ f_val_print, /* Print a value using appropriate syntax */ c_value_print, /* FIXME */ {"", "", "", ""}, /* Binary format info */ {"0%o", "0", "o", ""}, /* Octal format info */ {"%d", "", "d", ""}, /* Decimal format info */ {"0x%x", "0x", "x", ""}, /* Hex format info */ f_op_print_tab, /* expression operators for printing */ 0, /* arrays are first-class (not c-style) */ 1, /* String lower bound */ &builtin_type_f_character, /* Type of string elements */ LANG_MAGIC }; void _initialize_f_language (void) { builtin_type_f_void = init_type (TYPE_CODE_VOID, 1, 0, "VOID", (struct objfile *) NULL); builtin_type_f_character = init_type (TYPE_CODE_INT, TARGET_CHAR_BIT / TARGET_CHAR_BIT, 0, "character", (struct objfile *) NULL); builtin_type_f_logical_s1 = init_type (TYPE_CODE_BOOL, TARGET_CHAR_BIT / TARGET_CHAR_BIT, TYPE_FLAG_UNSIGNED, "logical*1", (struct objfile *) NULL); builtin_type_f_integer_s2 = init_type (TYPE_CODE_INT, TARGET_SHORT_BIT / TARGET_CHAR_BIT, 0, "integer*2", (struct objfile *) NULL); builtin_type_f_logical_s2 = init_type (TYPE_CODE_BOOL, TARGET_SHORT_BIT / TARGET_CHAR_BIT, TYPE_FLAG_UNSIGNED, "logical*2", (struct objfile *) NULL); builtin_type_f_integer = init_type (TYPE_CODE_INT, TARGET_INT_BIT / TARGET_CHAR_BIT, 0, "integer", (struct objfile *) NULL); builtin_type_f_logical = init_type (TYPE_CODE_BOOL, TARGET_INT_BIT / TARGET_CHAR_BIT, TYPE_FLAG_UNSIGNED, "logical*4", (struct objfile *) NULL); builtin_type_f_real = init_type (TYPE_CODE_FLT, TARGET_FLOAT_BIT / TARGET_CHAR_BIT, 0, "real", (struct objfile *) NULL); builtin_type_f_real_s8 = init_type (TYPE_CODE_FLT, TARGET_DOUBLE_BIT / TARGET_CHAR_BIT, 0, "real*8", (struct objfile *) NULL); builtin_type_f_real_s16 = init_type (TYPE_CODE_FLT, TARGET_LONG_DOUBLE_BIT / TARGET_CHAR_BIT, 0, "real*16", (struct objfile *) NULL); builtin_type_f_complex_s8 = init_type (TYPE_CODE_COMPLEX, 2 * TARGET_FLOAT_BIT / TARGET_CHAR_BIT, 0, "complex*8", (struct objfile *) NULL); TYPE_TARGET_TYPE (builtin_type_f_complex_s8) = builtin_type_f_real; builtin_type_f_complex_s16 = init_type (TYPE_CODE_COMPLEX, 2 * TARGET_DOUBLE_BIT / TARGET_CHAR_BIT, 0, "complex*16", (struct objfile *) NULL); TYPE_TARGET_TYPE (builtin_type_f_complex_s16) = builtin_type_f_real_s8; /* We have a new size == 4 double floats for the complex*32 data type */ builtin_type_f_complex_s32 = init_type (TYPE_CODE_COMPLEX, 2 * TARGET_LONG_DOUBLE_BIT / TARGET_CHAR_BIT, 0, "complex*32", (struct objfile *) NULL); TYPE_TARGET_TYPE (builtin_type_f_complex_s32) = builtin_type_f_real_s16; builtin_type_string = init_type (TYPE_CODE_STRING, TARGET_CHAR_BIT / TARGET_CHAR_BIT, 0, "character string", (struct objfile *) NULL); add_language (&f_language_defn); } #if 0 static SAVED_BF_PTR allocate_saved_bf_node (void) { SAVED_BF_PTR new; new = (SAVED_BF_PTR) xmalloc (sizeof (SAVED_BF)); return (new); } static SAVED_FUNCTION * allocate_saved_function_node (void) { SAVED_FUNCTION *new; new = (SAVED_FUNCTION *) xmalloc (sizeof (SAVED_FUNCTION)); return (new); } static SAVED_F77_COMMON_PTR allocate_saved_f77_common_node (void) { SAVED_F77_COMMON_PTR new; new = (SAVED_F77_COMMON_PTR) xmalloc (sizeof (SAVED_F77_COMMON)); return (new); } static COMMON_ENTRY_PTR allocate_common_entry_node (void) { COMMON_ENTRY_PTR new; new = (COMMON_ENTRY_PTR) xmalloc (sizeof (COMMON_ENTRY)); return (new); } #endif SAVED_F77_COMMON_PTR head_common_list = NULL; /* Ptr to 1st saved COMMON */ SAVED_F77_COMMON_PTR tail_common_list = NULL; /* Ptr to last saved COMMON */ SAVED_F77_COMMON_PTR current_common = NULL; /* Ptr to current COMMON */ #if 0 static SAVED_BF_PTR saved_bf_list = NULL; /* Ptr to (.bf,function) list */ static SAVED_BF_PTR saved_bf_list_end = NULL; /* Ptr to above list's end */ static SAVED_BF_PTR current_head_bf_list = NULL; /* Current head of above list */ static SAVED_BF_PTR tmp_bf_ptr; /* Generic temporary for use in macros */ /* The following function simply enters a given common block onto the global common block chain */ static void add_common_block (char *name, CORE_ADDR offset, int secnum, char *func_stab) { SAVED_F77_COMMON_PTR tmp; char *c, *local_copy_func_stab; /* If the COMMON block we are trying to add has a blank name (i.e. "#BLNK_COM") then we set it to __BLANK because the darn "#" character makes GDB's input parser have fits. */ if (STREQ (name, BLANK_COMMON_NAME_ORIGINAL) || STREQ (name, BLANK_COMMON_NAME_MF77)) { free (name); name = alloca (strlen (BLANK_COMMON_NAME_LOCAL) + 1); strcpy (name, BLANK_COMMON_NAME_LOCAL); } tmp = allocate_saved_f77_common_node (); local_copy_func_stab = xmalloc (strlen (func_stab) + 1); strcpy (local_copy_func_stab, func_stab); tmp->name = xmalloc (strlen (name) + 1); /* local_copy_func_stab is a stabstring, let us first extract the function name from the stab by NULLing out the ':' character. */ c = NULL; c = strchr (local_copy_func_stab, ':'); if (c) *c = '\0'; else error ("Malformed function STAB found in add_common_block()"); tmp->owning_function = xmalloc (strlen (local_copy_func_stab) + 1); strcpy (tmp->owning_function, local_copy_func_stab); strcpy (tmp->name, name); tmp->offset = offset; tmp->next = NULL; tmp->entries = NULL; tmp->secnum = secnum; current_common = tmp; if (head_common_list == NULL) { head_common_list = tail_common_list = tmp; } else { tail_common_list->next = tmp; tail_common_list = tmp; } } #endif /* The following function simply enters a given common entry onto the "current_common" block that has been saved away. */ #if 0 static void add_common_entry (struct symbol *entry_sym_ptr) { COMMON_ENTRY_PTR tmp; /* The order of this list is important, since we expect the entries to appear in decl. order when we later issue "info common" calls */ tmp = allocate_common_entry_node (); tmp->next = NULL; tmp->symbol = entry_sym_ptr; if (current_common == NULL) error ("Attempt to add COMMON entry with no block open!"); else { if (current_common->entries == NULL) { current_common->entries = tmp; current_common->end_of_entries = tmp; } else { current_common->end_of_entries->next = tmp; current_common->end_of_entries = tmp; } } } #endif /* This routine finds the first encountred COMMON block named "name" */ #if 0 static SAVED_F77_COMMON_PTR find_first_common_named (char *name) { SAVED_F77_COMMON_PTR tmp; tmp = head_common_list; while (tmp != NULL) { if (STREQ (tmp->name, name)) return (tmp); else tmp = tmp->next; } return (NULL); } #endif /* This routine finds the first encountred COMMON block named "name" that belongs to function funcname */ SAVED_F77_COMMON_PTR find_common_for_function (char *name, char *funcname) { SAVED_F77_COMMON_PTR tmp; tmp = head_common_list; while (tmp != NULL) { if (STREQ (tmp->name, name) && STREQ (tmp->owning_function, funcname)) return (tmp); else tmp = tmp->next; } return (NULL); } #if 0 /* The following function is called to patch up the offsets for the statics contained in the COMMON block named "name." */ static void patch_common_entries (SAVED_F77_COMMON_PTR blk, CORE_ADDR offset, int secnum) { COMMON_ENTRY_PTR entry; blk->offset = offset; /* Keep this around for future use. */ entry = blk->entries; while (entry != NULL) { SYMBOL_VALUE (entry->symbol) += offset; SYMBOL_SECTION (entry->symbol) = secnum; entry = entry->next; } blk->secnum = secnum; } /* Patch all commons named "name" that need patching.Since COMMON blocks occur with relative infrequency, we simply do a linear scan on the name. Eventually, the best way to do this will be a hashed-lookup. Secnum is the section number for the .bss section (which is where common data lives). */ static void patch_all_commons_by_name (char *name, CORE_ADDR offset, int secnum) { SAVED_F77_COMMON_PTR tmp; /* For blank common blocks, change the canonical reprsentation of a blank name */ if ((STREQ (name, BLANK_COMMON_NAME_ORIGINAL)) || (STREQ (name, BLANK_COMMON_NAME_MF77))) { free (name); name = alloca (strlen (BLANK_COMMON_NAME_LOCAL) + 1); strcpy (name, BLANK_COMMON_NAME_LOCAL); } tmp = head_common_list; while (tmp != NULL) { if (COMMON_NEEDS_PATCHING (tmp)) if (STREQ (tmp->name, name)) patch_common_entries (tmp, offset, secnum); tmp = tmp->next; } } #endif /* This macro adds the symbol-number for the start of the function (the symbol number of the .bf) referenced by symnum_fcn to a list. This list, in reality should be a FIFO queue but since #line pragmas sometimes cause line ranges to get messed up we simply create a linear list. This list can then be searched first by a queueing algorithm and upon failure fall back to a linear scan. */ #if 0 #define ADD_BF_SYMNUM(bf_sym,fcn_sym) \ \ if (saved_bf_list == NULL) \ { \ tmp_bf_ptr = allocate_saved_bf_node(); \ \ tmp_bf_ptr->symnum_bf = (bf_sym); \ tmp_bf_ptr->symnum_fcn = (fcn_sym); \ tmp_bf_ptr->next = NULL; \ \ current_head_bf_list = saved_bf_list = tmp_bf_ptr; \ saved_bf_list_end = tmp_bf_ptr; \ } \ else \ { \ tmp_bf_ptr = allocate_saved_bf_node(); \ \ tmp_bf_ptr->symnum_bf = (bf_sym); \ tmp_bf_ptr->symnum_fcn = (fcn_sym); \ tmp_bf_ptr->next = NULL; \ \ saved_bf_list_end->next = tmp_bf_ptr; \ saved_bf_list_end = tmp_bf_ptr; \ } #endif /* This function frees the entire (.bf,function) list */ #if 0 static void clear_bf_list (void) { SAVED_BF_PTR tmp = saved_bf_list; SAVED_BF_PTR next = NULL; while (tmp != NULL) { next = tmp->next; free (tmp); tmp = next; } saved_bf_list = NULL; } #endif int global_remote_debug; #if 0 static long get_bf_for_fcn (long the_function) { SAVED_BF_PTR tmp; int nprobes = 0; /* First use a simple queuing algorithm (i.e. look and see if the item at the head of the queue is the one you want) */ if (saved_bf_list == NULL) internal_error ("cannot get .bf node off empty list"); if (current_head_bf_list != NULL) if (current_head_bf_list->symnum_fcn == the_function) { if (global_remote_debug) fprintf (stderr, "*"); tmp = current_head_bf_list; current_head_bf_list = current_head_bf_list->next; return (tmp->symnum_bf); } /* If the above did not work (probably because #line directives were used in the sourcefile and they messed up our internal tables) we now do the ugly linear scan */ if (global_remote_debug) fprintf (stderr, "\ndefaulting to linear scan\n"); nprobes = 0; tmp = saved_bf_list; while (tmp != NULL) { nprobes++; if (tmp->symnum_fcn == the_function) { if (global_remote_debug) fprintf (stderr, "Found in %d probes\n", nprobes); current_head_bf_list = tmp->next; return (tmp->symnum_bf); } tmp = tmp->next; } return (-1); } static SAVED_FUNCTION_PTR saved_function_list = NULL; static SAVED_FUNCTION_PTR saved_function_list_end = NULL; static void clear_function_list (void) { SAVED_FUNCTION_PTR tmp = saved_function_list; SAVED_FUNCTION_PTR next = NULL; while (tmp != NULL) { next = tmp->next; free (tmp); tmp = next; } saved_function_list = NULL; } #endif