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Diffstat (limited to 'gdb/f-lang.c')
| -rw-r--r-- | gdb/f-lang.c | 973 |
1 files changed, 973 insertions, 0 deletions
diff --git a/gdb/f-lang.c b/gdb/f-lang.c new file mode 100644 index 0000000..4ee66d5 --- /dev/null +++ b/gdb/f-lang.c @@ -0,0 +1,973 @@ +/* Fortran language support routines for GDB, the GNU debugger. + Copyright 1993, 1994, 1996 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" + +/* 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 */ + +#if 0 +static void clear_function_list PARAMS ((void)); +static long get_bf_for_fcn PARAMS ((long)); +static void clear_bf_list PARAMS ((void)); +static void patch_all_commons_by_name PARAMS ((char *, CORE_ADDR, int)); +static SAVED_F77_COMMON_PTR find_first_common_named PARAMS ((char *)); +static void add_common_entry PARAMS ((struct symbol *)); +static void add_common_block PARAMS ((char *, CORE_ADDR, int, char *)); +static SAVED_FUNCTION *allocate_saved_function_node PARAMS ((void)); +static SAVED_BF_PTR allocate_saved_bf_node PARAMS ((void)); +static COMMON_ENTRY_PTR allocate_common_entry_node PARAMS ((void)); +static SAVED_F77_COMMON_PTR allocate_saved_f77_common_node PARAMS ((void)); +static void patch_common_entries PARAMS ((SAVED_F77_COMMON_PTR, CORE_ADDR, int)); +#endif + +static struct type *f_create_fundamental_type PARAMS ((struct objfile *, int)); +static void f_printstr PARAMS ((GDB_FILE *stream, char *string, unsigned int length, int width, int force_ellipses)); +static void f_printchar PARAMS ((int c, GDB_FILE *stream)); +static void f_emit_char PARAMS ((int c, GDB_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 (c, stream, quoter) + register int c; + GDB_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 (c, stream) + int c; + GDB_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 (stream, string, length, width, force_ellipses) + GDB_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; + extern int repeat_count_threshold; + extern int print_max; + + 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 (objfile, typeid) + 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_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 PARAMS ((struct value *, GDB_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 () +{ + 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() +{ + SAVED_BF_PTR new; + + new = (SAVED_BF_PTR) xmalloc (sizeof (SAVED_BF)); + return(new); +} + +static SAVED_FUNCTION * +allocate_saved_function_node() +{ + SAVED_FUNCTION *new; + + new = (SAVED_FUNCTION *) xmalloc (sizeof (SAVED_FUNCTION)); + return(new); +} + +static SAVED_F77_COMMON_PTR allocate_saved_f77_common_node() +{ + 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() +{ + 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(name,offset,secnum,func_stab) + 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(entry_sym_ptr) + 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(name) + 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(name, funcname) + 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 (blk, offset, secnum) + 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 (name, offset, secnum) + 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() +{ + + 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 (the_function) + 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) + fatal ("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() +{ + 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 + |