| /* Fortran language support routines for GDB, the GNU debugger. |
| Copyright 1993, 1994, 1995, 1996, 1998, 1999, 2000, 2001, 2002 |
| 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, " <repeats %u times>", 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 "<?type?>". 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, "<?type?>", 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 (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, |
| case_sensitive_off, |
| 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)) |
| { |
| |
| xfree (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))) |
| { |
| xfree (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; |
| xfree (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 (__FILE__, __LINE__, |
| "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_unfiltered (gdb_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_unfiltered (gdb_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_unfiltered (gdb_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; |
| xfree (tmp); |
| tmp = next; |
| } |
| |
| saved_function_list = NULL; |
| } |
| #endif |