/*
* Aic7xxx SCSI host adapter firmware assembler symbol table implementation
*
* Copyright ( c ) 1997 Justin T . Gibbs .
* Copyright ( c ) 2002 Adaptec Inc .
* All rights reserved .
*
* Redistribution and use in source and binary forms , with or without
* modification , are permitted provided that the following conditions
* are met :
* 1 . Redistributions of source code must retain the above copyright
* notice , this list of conditions , and the following disclaimer ,
* without modification .
* 2 . Redistributions in binary form must reproduce at minimum a disclaimer
* substantially similar to the " NO WARRANTY " disclaimer below
* ( " Disclaimer " ) and any redistribution must be conditioned upon
* including a substantially similar Disclaimer requirement for further
* binary redistribution .
* 3 . Neither the names of the above - listed copyright holders nor the names
* of any contributors may be used to endorse or promote products derived
* from this software without specific prior written permission .
*
* Alternatively , this software may be distributed under the terms of the
* GNU General Public License ( " GPL " ) version 2 as published by the Free
* Software Foundation .
*
* NO WARRANTY
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* " AS IS " AND ANY EXPRESS OR IMPLIED WARRANTIES , INCLUDING , BUT NOT
* LIMITED TO , THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED . IN NO EVENT SHALL THE COPYRIGHT
* HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL , EXEMPLARY , OR CONSEQUENTIAL
* DAMAGES ( INCLUDING , BUT NOT LIMITED TO , PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES ; LOSS OF USE , DATA , OR PROFITS ; OR BUSINESS INTERRUPTION )
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY , WHETHER IN CONTRACT ,
* STRICT LIABILITY , OR TORT ( INCLUDING NEGLIGENCE OR OTHERWISE ) ARISING
* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE , EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGES .
*
* $ Id : //depot/aic7xxx/aic7xxx/aicasm/aicasm_symbol.c#24 $
*
* $ FreeBSD $
*/
#include <sys/types.h>
#include "aicdb.h"
#include <fcntl.h>
#include <inttypes.h>
#include <regex.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sysexits.h>
#include <ctype.h>
#include "aicasm_symbol.h"
#include "aicasm.h"
static DB *symtable;
symbol_t *
symbol_create(char *name)
{
symbol_t *new_symbol;
new_symbol = (symbol_t *)malloc(sizeof (symbol_t));
if (new_symbol == NULL) {
perror("Unable to create new symbol" );
exit (EX_SOFTWARE);
}
memset(new_symbol, 0 , sizeof (*new_symbol));
new_symbol->name = strdup(name);
if (new_symbol->name == NULL)
stop("Unable to strdup symbol name" , EX_SOFTWARE);
new_symbol->type = UNINITIALIZED;
new_symbol->count = 1 ;
return (new_symbol);
}
void
symbol_delete(symbol_t *symbol)
{
if (symtable != NULL) {
DBT key;
key.data = symbol->name;
key.size = strlen(symbol->name);
symtable->del(symtable, &key, /*flags*/0);
}
switch (symbol->type) {
case SCBLOC:
case SRAMLOC:
case REGISTER :
if (symbol->info.rinfo != NULL)
free(symbol->info.rinfo);
break ;
case ALIAS:
if (symbol->info.ainfo != NULL)
free(symbol->info.ainfo);
break ;
case MASK:
case FIELD:
case ENUM :
case ENUM_ENTRY:
if (symbol->info.finfo != NULL) {
symlist_free(&symbol->info.finfo->symrefs);
free(symbol->info.finfo);
}
break ;
case DOWNLOAD_CONST:
case CONST :
if (symbol->info.cinfo != NULL)
free(symbol->info.cinfo);
break ;
case LABEL:
if (symbol->info.linfo != NULL)
free(symbol->info.linfo);
break ;
case UNINITIALIZED:
default :
break ;
}
free(symbol->name);
free(symbol);
}
void
symtable_open()
{
symtable = dbopen(/*filename*/NULL,
O_CREAT | O_NONBLOCK | O_RDWR, /*mode*/0, DB_HASH,
/*openinfo*/NULL);
if (symtable == NULL) {
perror("Symbol table creation failed" );
exit (EX_SOFTWARE);
/* NOTREACHED */
}
}
void
symtable_close()
{
if (symtable != NULL) {
DBT key;
DBT data;
while (symtable->seq(symtable, &key, &data, R_FIRST) == 0 ) {
symbol_t *stored_ptr;
memcpy(&stored_ptr, data.data, sizeof (stored_ptr));
symbol_delete(stored_ptr);
}
symtable->close(symtable);
}
}
/*
* The semantics of get is to return an uninitialized symbol entry
* if a lookup fails .
*/
symbol_t *
symtable_get(char *name)
{
symbol_t *stored_ptr;
DBT key;
DBT data;
int retval;
key.data = (void *)name;
key.size = strlen(name);
if ((retval = symtable->get(symtable, &key, &data, /*flags*/0)) != 0) {
if (retval == -1 ) {
perror("Symbol table get operation failed" );
exit (EX_SOFTWARE);
/* NOTREACHED */
} else if (retval == 1 ) {
/* Symbol wasn't found, so create a new one */
symbol_t *new_symbol;
new_symbol = symbol_create(name);
data.data = &new_symbol;
data.size = sizeof (new_symbol);
if (symtable->put(symtable, &key, &data,
/*flags*/0) !=0) {
perror("Symtable put failed" );
exit (EX_SOFTWARE);
}
return (new_symbol);
} else {
perror("Unexpected return value from db get routine" );
exit (EX_SOFTWARE);
/* NOTREACHED */
}
}
memcpy(&stored_ptr, data.data, sizeof (stored_ptr));
stored_ptr->count++;
data.data = &stored_ptr;
if (symtable->put(symtable, &key, &data, /*flags*/0) !=0) {
perror("Symtable put failed" );
exit (EX_SOFTWARE);
}
return (stored_ptr);
}
symbol_node_t *
symlist_search(symlist_t *symlist, char *symname)
{
symbol_node_t *curnode;
curnode = SLIST_FIRST(symlist);
while (curnode != NULL) {
if (strcmp(symname, curnode->symbol->name) == 0 )
break ;
curnode = SLIST_NEXT(curnode, links);
}
return (curnode);
}
void
symlist_add(symlist_t *symlist, symbol_t *symbol, int how)
{
symbol_node_t *newnode;
newnode = (symbol_node_t *)malloc(sizeof (symbol_node_t));
if (newnode == NULL) {
stop("symlist_add: Unable to malloc symbol_node" , EX_SOFTWARE);
/* NOTREACHED */
}
newnode->symbol = symbol;
if (how == SYMLIST_SORT) {
symbol_node_t *curnode;
int field;
field = FALSE ;
switch (symbol->type) {
case REGISTER :
case SCBLOC:
case SRAMLOC:
break ;
case FIELD:
case MASK:
case ENUM :
case ENUM_ENTRY:
field = TRUE ;
break ;
default :
stop("symlist_add: Invalid symbol type for sorting" ,
EX_SOFTWARE);
/* NOTREACHED */
}
curnode = SLIST_FIRST(symlist);
if (curnode == NULL
|| (field
&& (curnode->symbol->type > newnode->symbol->type
|| (curnode->symbol->type == newnode->symbol->type
&& (curnode->symbol->info.finfo->value >
newnode->symbol->info.finfo->value))))
|| (!field && (curnode->symbol->info.rinfo->address >
newnode->symbol->info.rinfo->address))) {
SLIST_INSERT_HEAD(symlist, newnode, links);
return ;
}
while (1 ) {
if (SLIST_NEXT(curnode, links) == NULL) {
SLIST_INSERT_AFTER(curnode, newnode,
links);
break ;
} else {
symbol_t *cursymbol;
cursymbol = SLIST_NEXT(curnode, links)->symbol;
if ((field
&& (cursymbol->type > symbol->type
|| (cursymbol->type == symbol->type
&& (cursymbol->info.finfo->value >
symbol->info.finfo->value))))
|| (!field
&& (cursymbol->info.rinfo->address >
symbol->info.rinfo->address))) {
SLIST_INSERT_AFTER(curnode, newnode,
links);
break ;
}
}
curnode = SLIST_NEXT(curnode, links);
}
} else {
SLIST_INSERT_HEAD(symlist, newnode, links);
}
}
void
symlist_free(symlist_t *symlist)
{
symbol_node_t *node1, *node2;
node1 = SLIST_FIRST(symlist);
while (node1 != NULL) {
node2 = SLIST_NEXT(node1, links);
free(node1);
node1 = node2;
}
SLIST_INIT(symlist);
}
void
symlist_merge(symlist_t *symlist_dest, symlist_t *symlist_src1,
symlist_t *symlist_src2)
{
symbol_node_t *node;
*symlist_dest = *symlist_src1;
while ((node = SLIST_FIRST(symlist_src2)) != NULL) {
SLIST_REMOVE_HEAD(symlist_src2, links);
SLIST_INSERT_HEAD(symlist_dest, node, links);
}
/* These are now empty */
SLIST_INIT(symlist_src1);
SLIST_INIT(symlist_src2);
}
void
aic_print_file_prologue(FILE *ofile)
{
if (ofile == NULL)
return ;
fprintf(ofile,
"/*\n"
" * DO NOT EDIT - This file is automatically generated\n"
" * from the following source files:\n"
" *\n"
"%s */\n" ,
versions);
}
void
aic_print_include(FILE *dfile, char *include_file)
{
if (dfile == NULL)
return ;
fprintf(dfile, "\n#include \" %s\"\n\n" , include_file);
}
void
aic_print_reg_dump_types(FILE *ofile)
{
if (ofile == NULL)
return ;
fprintf(ofile,
"typedef int (%sreg_print_t)(u_int, u_int *, u_int);\n"
"typedef struct %sreg_parse_entry {\n"
" char *name;\n"
" uint8_t value;\n"
" uint8_t mask;\n"
"} %sreg_parse_entry_t;\n"
"\n" ,
prefix, prefix, prefix);
}
static void
aic_print_reg_dump_start(FILE *dfile, symbol_node_t *regnode)
{
if (dfile == NULL)
return ;
fprintf(dfile,
"static const %sreg_parse_entry_t %s_parse_table[] = {\n" ,
prefix,
regnode->symbol->name);
}
static void
aic_print_reg_dump_end(FILE *ofile, FILE *dfile,
symbol_node_t *regnode, u_int num_entries)
{
char *lower_name;
char *letter;
lower_name = strdup(regnode->symbol->name);
if (lower_name == NULL)
stop("Unable to strdup symbol name" , EX_SOFTWARE);
for (letter = lower_name; *letter != '\0' ; letter++)
*letter = tolower(*letter);
if (dfile != NULL) {
if (num_entries != 0 )
fprintf(dfile,
"\n"
"};\n"
"\n" );
fprintf(dfile,
"int\n"
"%s%s_print(u_int regvalue, u_int *cur_col, u_int wrap)\n"
"{\n"
" return (%sprint_register(%s%s, %d, \" %s\",\n"
" 0x%02x, regvalue, cur_col, wrap));\n"
"}\n"
"\n" ,
prefix,
lower_name,
prefix,
num_entries != 0 ? regnode->symbol->name : "NULL" ,
num_entries != 0 ? "_parse_table" : "" ,
num_entries,
regnode->symbol->name,
regnode->symbol->info.rinfo->address);
}
fprintf(ofile,
"#if AIC_DEBUG_REGISTERS\n"
"%sreg_print_t %s%s_print;\n"
"#else\n"
"#define %s%s_print(regvalue, cur_col, wrap) \\\n"
" %sprint_register(NULL, 0, \" %s\", 0x%02x, regvalue, cur_col, wrap)\n"
"#endif\n"
"\n" ,
prefix,
prefix,
lower_name,
prefix,
lower_name,
prefix,
regnode->symbol->name,
regnode->symbol->info.rinfo->address);
}
static void
aic_print_reg_dump_entry(FILE *dfile, symbol_node_t *curnode)
{
int num_tabs;
if (dfile == NULL)
return ;
fprintf(dfile,
" { \" %s\"," ,
curnode->symbol->name);
num_tabs = 3 - (strlen(curnode->symbol->name) + 5 ) / 8 ;
while (num_tabs-- > 0 )
fputc('\t' , dfile);
fprintf(dfile, "0x%02x, 0x%02x }" ,
curnode->symbol->info.finfo->value,
curnode->symbol->info.finfo->mask);
}
void
symtable_dump(FILE *ofile, FILE *dfile)
{
/*
* Sort the registers by address with a simple insertion sort .
* Put bitmasks next to the first register that defines them .
* Put constants at the end .
*/
symlist_t registers;
symlist_t masks;
symlist_t constants;
symlist_t download_constants;
symlist_t aliases;
symlist_t exported_labels;
symbol_node_t *curnode;
symbol_node_t *regnode;
DBT key;
DBT data;
int flag;
int reg_count = 0 , reg_used = 0 ;
u_int i;
if (symtable == NULL)
return ;
SLIST_INIT(®isters);
SLIST_INIT(&masks);
SLIST_INIT(&constants);
SLIST_INIT(&download_constants);
SLIST_INIT(&aliases);
SLIST_INIT(&exported_labels);
flag = R_FIRST;
while (symtable->seq(symtable, &key, &data, flag) == 0 ) {
symbol_t *cursym;
memcpy(&cursym, data.data, sizeof (cursym));
switch (cursym->type) {
case REGISTER :
case SCBLOC:
case SRAMLOC:
symlist_add(®isters, cursym, SYMLIST_SORT);
break ;
case MASK:
case FIELD:
case ENUM :
case ENUM_ENTRY:
symlist_add(&masks, cursym, SYMLIST_SORT);
break ;
case CONST :
symlist_add(&constants, cursym,
SYMLIST_INSERT_HEAD);
break ;
case DOWNLOAD_CONST:
symlist_add(&download_constants, cursym,
SYMLIST_INSERT_HEAD);
break ;
case ALIAS:
symlist_add(&aliases, cursym,
SYMLIST_INSERT_HEAD);
break ;
case LABEL:
if (cursym->info.linfo->exported == 0 )
break ;
symlist_add(&exported_labels, cursym,
SYMLIST_INSERT_HEAD);
break ;
default :
break ;
}
flag = R_NEXT;
}
/* Register dianostic functions/declarations first. */
aic_print_file_prologue(ofile);
aic_print_reg_dump_types(ofile);
aic_print_file_prologue(dfile);
aic_print_include(dfile, stock_include_file);
SLIST_FOREACH(curnode, ®isters, links) {
if (curnode->symbol->dont_generate_debug_code)
continue ;
switch (curnode->symbol->type) {
case REGISTER :
case SCBLOC:
case SRAMLOC:
{
symlist_t *fields;
symbol_node_t *fieldnode;
int num_entries;
num_entries = 0 ;
reg_count++;
if (curnode->symbol->count == 1 )
break ;
fields = &curnode->symbol->info.rinfo->fields;
SLIST_FOREACH(fieldnode, fields, links) {
if (num_entries == 0 )
aic_print_reg_dump_start(dfile,
curnode);
else if (dfile != NULL)
fputs(",\n" , dfile);
num_entries++;
aic_print_reg_dump_entry(dfile, fieldnode);
}
aic_print_reg_dump_end(ofile, dfile,
curnode, num_entries);
reg_used++;
}
default :
break ;
}
}
fprintf(stderr, "%s: %d of %d register definitions used\n" , appname,
reg_used, reg_count);
/* Fold in the masks and bits */
while (SLIST_FIRST(&masks) != NULL) {
char *regname;
curnode = SLIST_FIRST(&masks);
SLIST_REMOVE_HEAD(&masks, links);
regnode = SLIST_FIRST(&curnode->symbol->info.finfo->symrefs);
regname = regnode->symbol->name;
regnode = symlist_search(®isters, regname);
SLIST_INSERT_AFTER(regnode, curnode, links);
}
/* Add the aliases */
while (SLIST_FIRST(&aliases) != NULL) {
char *regname;
curnode = SLIST_FIRST(&aliases);
SLIST_REMOVE_HEAD(&aliases, links);
regname = curnode->symbol->info.ainfo->parent->name;
regnode = symlist_search(®isters, regname);
SLIST_INSERT_AFTER(regnode, curnode, links);
}
/* Output generated #defines. */
while (SLIST_FIRST(®isters) != NULL) {
symbol_node_t *curnode;
u_int value;
char *tab_str;
char *tab_str2;
curnode = SLIST_FIRST(®isters);
SLIST_REMOVE_HEAD(®isters, links);
switch (curnode->symbol->type) {
case REGISTER :
case SCBLOC:
case SRAMLOC:
fprintf(ofile, "\n" );
value = curnode->symbol->info.rinfo->address;
tab_str = "\t" ;
tab_str2 = "\t\t" ;
break ;
case ALIAS:
{
symbol_t *parent;
parent = curnode->symbol->info.ainfo->parent;
value = parent->info.rinfo->address;
tab_str = "\t" ;
tab_str2 = "\t\t" ;
break ;
}
case MASK:
case FIELD:
case ENUM :
case ENUM_ENTRY:
value = curnode->symbol->info.finfo->value;
tab_str = "\t\t" ;
tab_str2 = "\t" ;
break ;
default :
value = 0 ; /* Quiet compiler */
tab_str = NULL;
tab_str2 = NULL;
stop("symtable_dump: Invalid symbol type "
"encountered" , EX_SOFTWARE);
break ;
}
fprintf(ofile, "#define%s%-16s%s0x%02x\n" ,
tab_str, curnode->symbol->name, tab_str2,
value);
free(curnode);
}
fprintf(ofile, "\n\n" );
while (SLIST_FIRST(&constants) != NULL) {
symbol_node_t *curnode;
curnode = SLIST_FIRST(&constants);
SLIST_REMOVE_HEAD(&constants, links);
fprintf(ofile, "#define\t%-8s\t0x%02x\n" ,
curnode->symbol->name,
curnode->symbol->info.cinfo->value);
free(curnode);
}
fprintf(ofile, "\n\n/* Downloaded Constant Definitions */\n");
for (i = 0 ; SLIST_FIRST(&download_constants) != NULL; i++) {
symbol_node_t *curnode;
curnode = SLIST_FIRST(&download_constants);
SLIST_REMOVE_HEAD(&download_constants, links);
fprintf(ofile, "#define\t%-8s\t0x%02x\n" ,
curnode->symbol->name,
curnode->symbol->info.cinfo->value);
free(curnode);
}
fprintf(ofile, "#define\tDOWNLOAD_CONST_COUNT\t0x%02x\n" , i);
fprintf(ofile, "\n\n/* Exported Labels */\n");
while (SLIST_FIRST(&exported_labels) != NULL) {
symbol_node_t *curnode;
curnode = SLIST_FIRST(&exported_labels);
SLIST_REMOVE_HEAD(&exported_labels, links);
fprintf(ofile, "#define\tLABEL_%-8s\t0x%02x\n" ,
curnode->symbol->name,
curnode->symbol->info.linfo->address);
free(curnode);
}
}
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