static void addptr(RList *ret, const char *name, ut64 addr, const ut8 *b, int len) {
if (b && rjmp (b)) {
addsym (ret, sdb_fmt ("vector.%s", name), addr);
ut64 ptr_addr = rjmp_dest (addr, b + addr);
addsym (ret, sdb_fmt ("syscall.%s", name), ptr_addr);
}
}
/*
* Call to a function
*/
void
calldec(NODE *p, NODE *r)
{
struct symtab *q = p->n_sp;
extern void addsym(struct symtab *);
addsym(q);
}
static a_sym *make_sym( char *name, token_t value )
{
a_sym *p;
p = addsym( name );
p->token = value;
return( p );
}
/*
** OPERATOR -- process a token starting with an operator
**
** Processes operators, strings, comments, and
** floating constants without a leading 0.
**
** Parameters:
** chr - first character of token {equel_cmap (chr) == OPATR}
**
** Returns:
** NUMBER or STRING token, or operator token.
** CONTINUE on error.
**
** Side Effects:
** Adds a node to the Symbol space, and returns adress
** in "yylval".
** Opcode is set to the opcode of the operator.
** May backup a character.
*/
int
operator(char chr)
{
register struct optab *op;
char opbuf [3];
opbuf [0] = chr;
opbuf [1] = getch();
opbuf [2] = '\0';
if (opbuf [0] == '.' && equel_cmap(opbuf[1]) == NUMBR) {
/* floating mantissa w/o leading 0 */
backup(opbuf [1]);
return (number(opbuf [0]));
}
if (equel_cmap(opbuf[1]) != OPATR) {
backup(opbuf [1]);
opbuf [1] = '\0';
}
/* operator has been reduced to its smallest
* possible length, now try to find it in the
* operator table [tokens.y]
*/
for ( ; ; ) {
for (op = Optab; op->op_term; op++)
if (strcmp(op->op_term, opbuf) == 0)
break;
if (!op->op_term && opbuf [1]) {
/* reduce a 2 char operator to 1 char,
* and re-search
*/
backup(opbuf[1]);
opbuf [1] = '\0';
continue;
}
break;
}
if (op->op_term) {
/* string quotes ? */
if (op->op_token == Tokens.sp_quote)
return (string(op));
/* comment indicator ? */
if (op->op_token == Tokens.sp_bgncmnt)
return (comment());
/* {strcmp(opbuf, op->op_term) == 0} */
Opcode = op->op_code;
yylval.u_dn = addsym(op->op_term);
return (op->op_token);
}
yysemerr("bad operator", opbuf);
/* operator not found, skip token and try again */
return (CONTINUE);
}
void ndinstal(char *name, Char *definition)
{
char *copy_string();
Char *copy_unsigned_string();
if ( addsym( copy_string( name ),
(char *) copy_unsigned_string( definition ), 0,
ndtbl, NAME_TABLE_HASH_SIZE ) )
synerr( _( "name defined twice" ) );
}
FILE *
fincludegets(char *buf, int size, FILE *fp)
{
char name[MAXPATHLEN];
FILE *nfp=NULL;
char *p;
int ch;
if (fp == NULL)
return(NULL);
if (fgets(buf, size, fp) == NULL) {
*buf = '\0';
fclose(fp);
fp = popfp();
return (fp);
}
if ((p = strchr(buf, '\n')) != NULL)
*p = '\0';
else {
/* Flush this line */
while ((ch = fgetc(fp)) != '\n' && ch != EOF);
if (ch == EOF) {
*buf = '\0';
fclose(fp);
fp = popfp();
return(fp);
}
}
switch (tokenscpp(buf, name)) {
case T_INCLUDE:
*buf = '\0';
if ((nfp = fopen(name, "r")) != NULL) {
pushfp(fp);
fp = nfp;
}
break;
case T_DEFINE:
addsym(name);
break;
case T_IFNDEF:
if (findsym(name)) {
fclose(fp);
fp = popfp();
*buf = '\0';
}
break;
case T_ENDIF:
*buf = '\0';
break;
default:
break;
}
return (fp);
}
void cclinstal(Char *ccltxt, int cclnum)
{
/* We don't bother checking the return status because we are not
* called unless the symbol is new.
*/
Char *copy_unsigned_string();
(void) addsym( (char *) copy_unsigned_string( ccltxt ),
NULL, cclnum,
ccltab, CCL_HASH_SIZE );
}
void scinstal(char *str, int xcluflg)
{
char *copy_string();
/* Generate start condition definition, for use in BEGIN et al. */
action_define( str, lastsc );
if ( ++lastsc >= current_max_scs )
scextend();
scname[lastsc] = copy_string( str );
if ( addsym( scname[lastsc], NULL, lastsc,
sctbl, START_COND_HASH_SIZE ) )
format_pinpoint_message(
_( "start condition %s declared twice" ),
str );
scset[lastsc] = mkstate( SYM_EPSILON );
scbol[lastsc] = mkstate( SYM_EPSILON );
scxclu[lastsc] = xcluflg;
sceof[lastsc] = false;
}
void Pass1::accept_statement(ParseNode *stmt, std::string insn_name, Insn &insn)
{
assert(stmt->token == RULE_STATEMENT);
char osz = 0, asz = 0;
std::list<ParseNode *>::iterator i = stmt->children.begin();
assert(i != stmt->children.end());
bool valid = true;
while((*i)->token == RULE_PREFIX)
{
int prefix = (*i)->children.front()->token;
switch(prefix)
{
case KEYWORD_O16:
if(osz == 0)
osz = 16;
else
valid = false;
break;
case KEYWORD_O32:
if(osz == 0)
osz = 32;
else
valid = false;
break;
case KEYWORD_O64:
if(osz == 0)
osz = 64;
else
valid = false;
break;
case KEYWORD_A16:
if(asz == 0)
asz = 16;
else
valid = false;
break;
case KEYWORD_A32:
if(asz == 0)
asz = 32;
else
valid = false;
break;
case KEYWORD_A64:
if(asz == 0)
asz = 64;
else
valid = false;
break;
default:
assert(0);
break;
}
++i;
}
assert((*i)->token == RULE_SIMPLE_D_STATEMENT);
if(!valid)
{
throw ParseError("Too many prefix (o16/o32/o64 or a16/a32/a64).",
stmt->lineNum,
stmt->fileNum,
__LINE__
);
}
ParseNode *simple = *i;
assert(!simple->children.empty());
bool is_pure_asgn = false;
if(simple->children.size() == 3)
{
i = simple->children.begin(); // possibly IDENT
++i; // skip possible IDENT
if((*i)->token == '=')
is_pure_asgn = true;
}
i = simple->children.begin();
if(!is_pure_asgn && (*i)->token == CTokenEnums::TOKEN_IDENT)
{
if(osz != 0 || asz != 0)
{
throw ParseError("Prefix (o16/o32/o64 or a16/a32/a64) used with local variable definition.",
stmt->lineNum,
stmt->fileNum,
__LINE__
);
}
}
std::string asgn_nm;
ParseNode *asgn_rhs = NULL;
// First allocate a local variable if that is in order.
if(!is_pure_asgn && (*i)->token == CTokenEnums::TOKEN_IDENT)
{
std::string sizeid = (*i)->text; // get identifier (size)
++i; // skip size identifier
Size sz = get_exact_size(sizeid);
if(sz.scalar == 0)
{
// Look up this size, it's a parameter.
std::map<std::string, Symbol *>::iterator j = symtab2.find(sizeid);
if(j == symtab2.end() || j->second->type != ST_ARGSIZE)
{
throw ParseError("Local variable size error: can't find size: " + sizeid,
stmt->lineNum,
stmt->fileNum,
__LINE__
);
}
sz.base = j->second->num;
assert(sz.base < 0);
sz.scalar = 1;
if((*i)->token == '*')
{
++i; // skip *
sz.scalar = get_short((*i)->text);
if(sz.scalar <= 1)
{
throw ParseError("Local variable size error: scalar must be 2..32767, found: " + (*i)->text,
stmt->lineNum,
stmt->fileNum,
__LINE__
);
}
++i; // skip scalar
}
}
else
{
if((*i)->token == '*')
{
throw ParseError("Local variable size error: can't use * with built-in type: " + sizeid,
stmt->lineNum,
stmt->fileNum,
__LINE__
);
}
}
assert((*i)->token == CTokenEnums::TOKEN_IDENT);
std::string nm = (*i)->text;
// (sz, nm) now set.
++i;
if(i != simple->children.end())
{
assert((*i)->token == '=');
++i; // skip '='
asgn_rhs = *i;
asgn_nm = nm;
}
// Create local variable here.
if(!is_valid_new_ident(nm))
{
throw ParseError("Local variable name already in symbol table: " + nm,
stmt->lineNum,
stmt->fileNum,
__LINE__
);
}
Symbol sym();
addsym(nm, new Symbol(ST_LOCAL, insn.locals.size(), sz));
insn.locals.push_back(sz);
locals.insert(nm);
}
i = simple->children.begin();
if(is_pure_asgn)
{
asgn_nm = (*i)->text; // ident
++i; // skip ident
assert((*i)->token == '=');
++i; // skip '='
asgn_rhs = *i;
}
// This is used for e.g. both of these cases:
// zeta = undefined;
// bit tmp = undefined;
if(asgn_rhs != NULL)
{
accept_asgn(asgn_nm, asgn_rhs, simple, insn_name, insn, asz, osz);
}
// Handle assert, push, pop, discard, outport, inport, reserve, restore here.
i = simple->children.begin();
if((*i)->token != CTokenEnums::TOKEN_IDENT)
{
int x = 0;
switch((*i)->token)
{
case KEYWORD_ASSERT:
x = SO_ASSERT;
break;
case KEYWORD_PUSH:
x = SO_PUSH;
break;
case KEYWORD_POP:
x = SO_POP;
break;
case KEYWORD_DISCARD:
x = SO_DISCARD;
break;
case KEYWORD_OUTPORT:
x = SO_OUTPORT;
break;
case KEYWORD_INPORT:
x = SO_INPORT;
break;
case KEYWORD_RESERVE:
x = SO_RESERVE;
break;
case KEYWORD_RESTORE:
x = SO_RESTORE;
break;
case KEYWORD_COMMIT:
x = SO_COMMIT;
break;
default:
assert(0);
break;
}
insn.stmts.push_back(Statement(x));
Statement &stmt = insn.stmts.back();
stmt.osz = osz;
stmt.asz = asz;
stmt.dest = NULL;
// Now do any arguments.
if(x == SO_RESERVE || x == SO_RESTORE)
{
stmt.src.push_back(Rhs());
Rhs &outrhs = stmt.src.back();
++i; // skip keyword
++i; // skip '('
accept_rhs(outrhs, *i, insn_name, insn, Size(8, 1));
}
else
{
++i; // skip keyword
++i; // skip '('
while((*i)->token == RULE_RHS)
{
stmt.src.push_back(Rhs());
Rhs &outrhs = stmt.src.back();
accept_rhs(outrhs, *i, insn_name, insn, Size(0, 0));
if(outrhs.size.scalar == 0)
{
throw ParseError("Unable to resolve size of argument. If NUM, try e.g. tr<B8>(NUM)." + asgn_nm,
simple->lineNum,
simple->fileNum,
__LINE__
);
}
++i; // skip rhs
if((*i)->token != ',')
break;
++i; // skip comma
}
assert((*i)->token == ')');
}
}
}
void Pass1::accept_func_decl(ParseNode *node)
{
std::list<ParseNode *>::iterator i = node->children.begin();
ParseNode *tprototype = *i;
assert(tprototype->token == RULE_PROTOTYPE_D_TYPE);
++i;
ParseNode *prototype = *i;
assert(prototype->token == RULE_PROTOTYPE);
++i;
assert((*i)->token == ';');
//---
i = prototype->children.begin();
std::string fn_name = (*i)->text;
++i; // skip fn_name
assert((*i)->token == '(');
++i; // skip '('
Symbol *symT = new Symbol(ST_FUNC, numFuncs, Size(0, 0));
Symbol &sym = *symT;
if((*i)->token == RULE_ARGS)
{
Args args(this, *i);
for(std::vector<Arg>::iterator j = args.args.begin(); j != args.args.end(); ++j)
{
short x = j->base_size;
if(x == -1)
{
assert(args.argtypes.find(j->size_name) != args.argtypes.end());
x = args.argtypes[j->size_name];
assert(x < 0);
}
sym.args.push_back(Size(x, j->scalar));
}
std::string xs = tprototype->children.front()->text;
sym.size = get_exact_size(xs);
if(sym.size.scalar == 0)
{
// unknown size.
if(args.argtypes.find(xs) == args.argtypes.end())
{
throw ParseError("Bad return size for function - " + fn_name,
node->lineNum,
node->fileNum,
__LINE__
);
}
short x = args.argtypes[xs];
assert(x < 0);
sym.size.base = x;
sym.size.scalar = 1;
// Now handle any *.
if(tprototype->children.size() != 1)
{
sym.size.scalar = get_short(tprototype->children.back()->text);
if(sym.size.scalar <= 1)
{
throw ParseError("Bad return size for function - " + fn_name,
node->lineNum,
node->fileNum,
__LINE__
);
}
}
}
else
if(sym.size.scalar != 1 || tprototype->children.size() != 1)
{
throw ParseError("Bad return size for function - " + fn_name,
node->lineNum,
node->fileNum,
__LINE__
);
}
}
else
{
sym.size = get_exact_size(tprototype->children.front()->text);
if(sym.size.scalar != 1 || tprototype->children.size() != 1)
{
throw ParseError("Bad return size for function - " + fn_name,
node->lineNum,
node->fileNum,
__LINE__
);
}
}
if(!is_valid_new_ident(fn_name))
{
throw ParseError("Name already exists - " + fn_name,
node->lineNum,
node->fileNum,
__LINE__
);
}
///
///sym.dump_function(fn_name, this);
///
///symtab.insert(std::make_pair(fn_name, sym));
addsym(fn_name, symT);
++numFuncs;
//---
}
/*
* read_exec
* Read the exec structure; ignore any files that don't look
* exactly right. Return MID.
* return -1 for files that don't look right.
* XXX it's hard to be sure when to ignore files, and when to error
* out.
*/
int
read_exec(FILE *rfp, FILE *wfp, long *symcnt, long *tsymlen)
{
union {
struct exec exec;
Elf32_Ehdr elf32;
Elf64_Ehdr elf64;
} eh;
struct nlist nl;
off_t r_off, w_off;
char *strtab = NULL;
long strsize, nsyms;
int i;
/* Get current offsets for original and tmp files. */
r_off = ftello(rfp);
w_off = ftello(wfp);
/* Read in exec structure. */
if (fread(&eh, sizeof(eh), 1, rfp) != 1)
err(1, "fread: %s", archive);
if (!elf32_chk_header(&eh.elf32)) {
Elf32_Sym sbuf;
char *shstr;
Elf32_Shdr *shdr;
size_t stabsize;
elf32_fix_header(&eh.elf32);
if (eh.elf32.e_ehsize < sizeof eh.elf32) {
warnx("%s: ELF header is too short", archive);
goto bad;
}
if (!(shdr = elf32_load_shdrs(archive, rfp, r_off, &eh.elf32)))
goto bad;
elf32_fix_shdrs(&eh.elf32, shdr);
if (!(shstr = elf32_shstrload(archive, rfp, r_off, &eh.elf32,
shdr))) {
free(shdr);
goto bad;
}
if (!(strtab = elf32_strload(archive, rfp, r_off, &eh.elf32,
shdr, shstr, ELF_STRTAB, &stabsize))) {
free(shstr);
free(shdr);
goto bad;
}
/* find the symtab section */
for (i = 0; i < eh.elf32.e_shnum; i++)
if (!strcmp(shstr + shdr[i].sh_name, ELF_SYMTAB)) {
nsyms = shdr[i].sh_size / sizeof(Elf32_Sym);
break;
}
if (i == eh.elf32.e_shnum) {
free(shstr);
free(shdr);
goto bad;
}
if (fseeko(rfp, r_off + shdr[i].sh_offset, SEEK_SET))
err(1, "fseeko: %s", archive);
for (i = 0; i < nsyms; i++) {
if (fread(&sbuf, sizeof(sbuf), 1, rfp) != 1)
err(1, "fread: %s", archive);
elf32_fix_sym(&eh.elf32, &sbuf);
if (!sbuf.st_name || sbuf.st_name > stabsize)
continue;
if (elf32_2nlist(&sbuf, &eh.elf32, shdr, shstr, &nl))
continue;
addsym(&nl, strtab, r_off - r_fuzz -
sizeof(struct ar_hdr), symcnt, tsymlen, archive);
}
free(strtab);
free(shstr);
free(shdr);
(void)fseeko(rfp, r_off, SEEK_SET);
return MID_ELFFL | eh.elf32.e_machine;
} else if (!elf64_chk_header(&eh.elf64)) {
Elf64_Sym sbuf;
char *shstr;
Elf64_Shdr *shdr;
size_t stabsize;
elf64_fix_header(&eh.elf64);
if (eh.elf64.e_ehsize < sizeof eh.elf64) {
warnx("%s: ELF header is too short", archive);
goto bad;
}
if (!(shdr = elf64_load_shdrs(archive, rfp, r_off, &eh.elf64)))
goto bad;
elf64_fix_shdrs(&eh.elf64, shdr);
if (!(shstr = elf64_shstrload(archive, rfp, r_off, &eh.elf64,
shdr))) {
free(shdr);
goto bad;
}
if (!(strtab = elf64_strload(archive, rfp, r_off, &eh.elf64,
shdr, shstr, ELF_STRTAB, &stabsize))) {
free(shstr);
free(shdr);
goto bad;
}
/* find the symtab section */
for (i = 0; i < eh.elf64.e_shnum; i++)
if (!strcmp(shstr + shdr[i].sh_name, ELF_SYMTAB)) {
nsyms = shdr[i].sh_size / sizeof(Elf64_Sym);
break;
}
if (i == eh.elf64.e_shnum) {
free(shstr);
free(shdr);
goto bad;
}
if (fseeko(rfp, r_off + shdr[i].sh_offset, SEEK_SET))
err(1, "fseeko: %s", archive);
for (i = 0; i < nsyms; i++) {
if (fread(&sbuf, sizeof(sbuf), 1, rfp) != 1)
err(1, "fread: %s", archive);
elf64_fix_sym(&eh.elf64, &sbuf);
if (!sbuf.st_name || sbuf.st_name > stabsize)
continue;
if (elf64_2nlist(&sbuf, &eh.elf64, shdr, shstr, &nl))
continue;
addsym(&nl, strtab, r_off - r_fuzz -
sizeof(struct ar_hdr), symcnt, tsymlen, archive);
}
free(strtab);
free(shstr);
free(shdr);
(void)fseeko(rfp, r_off, SEEK_SET);
return MID_ELFFL | eh.elf64.e_machine;
} else if (BAD_OBJECT(eh.exec) || eh.exec.a_syms == 0)
goto bad;
fix_header_order(&eh.exec);
/* Seek to string table. */
if (fseeko(rfp, N_STROFF(eh.exec) + r_off, SEEK_SET) == -1) {
if (errno == EINVAL)
goto bad;
else
err(1, "lseek: %s", archive);
}
/* Read in size of the string table. */
if (fread((char *)&strsize, sizeof(strsize), 1, rfp) != 1)
err(1, "fread: %s", archive);
strsize = fix_32_order(strsize, N_GETMID(eh.exec));
/* Read in the string table. */
strsize -= sizeof(strsize);
strtab = malloc(strsize);
if (!strtab)
err(1, "malloc: %s", archive);
if (fread(strtab, strsize, 1, rfp) != 1)
err(1, "fread: %s", archive);
/* Seek to symbol table. */
if (fseek(rfp, N_SYMOFF(eh.exec) + r_off, SEEK_SET) == (off_t)-1)
err(1, "fseeko: %s", archive);
/* For each symbol read the nlist entry and save it as necessary. */
nsyms = eh.exec.a_syms / sizeof(struct nlist);
while (nsyms--) {
if (!fread((char *)&nl, sizeof(struct nlist), 1, rfp)) {
if (feof(rfp))
badfmt();
err(1, "fread: %s", archive);
}
fix_nlist_order(&nl, N_GETMID(eh.exec));
addsym(&nl, strtab - sizeof(long), r_off - r_fuzz -
sizeof(struct ar_hdr), symcnt, tsymlen, archive);
}
bad:
free(strtab);
(void)fseeko(rfp, r_off, SEEK_SET);
return N_GETMID(eh.exec);
}
int
main(int argc, char *argv[])
{
int opt;
while ((opt = getopt(argc, argv, "i:D:U:I:o:bBcdeKklnsStV")) != -1)
switch (opt) {
case 'i':
opt = *optarg++;
if (opt == 'D')
addsym(true, true, optarg);
else if (opt == 'U')
addsym(true, false, optarg);
else
usage();
break;
case 'D':
addsym(false, true, optarg);
break;
case 'U':
addsym(false, false, optarg);
break;
case 'I':
break;
case 'b':
case 'l':
lnblank = true;
break;
case 'B':
compblank = true;
break;
case 'c':
complement = true;
break;
case 'd':
debugging = true;
break;
case 'e':
iocccok = true;
break;
case 'K':
strictlogic = true;
break;
case 'k':
killconsts = true;
break;
case 'n':
lnnum = true;
break;
case 'o':
ofilename = optarg;
break;
case 's':
symlist = true;
break;
case 'S':
symlist = symdepth = true;
break;
case 't':
text = true;
break;
case 'V':
version();
default:
usage();
}
argc -= optind;
argv += optind;
if (compblank && lnblank)
errx(2, "-B and -b are mutually exclusive");
if (argc > 1) {
errx(2, "can only do one file");
} else if (argc == 1 && strcmp(*argv, "-") != 0) {
filename = *argv;
input = fopen(filename, "rb");
if (input == NULL)
err(2, "can't open %s", filename);
} else {
filename = "[stdin]";
input = stdin;
}
if (ofilename == NULL) {
ofilename = "[stdout]";
output = stdout;
} else {
struct stat ist, ost;
if (stat(ofilename, &ost) == 0 &&
fstat(fileno(input), &ist) == 0)
overwriting = (ist.st_dev == ost.st_dev
&& ist.st_ino == ost.st_ino);
if (overwriting) {
const char *dirsep;
int ofd;
dirsep = strrchr(ofilename, '/');
if (dirsep != NULL)
snprintf(tempname, sizeof(tempname),
"%.*s/" TEMPLATE,
(int)(dirsep - ofilename), ofilename);
else
snprintf(tempname, sizeof(tempname),
TEMPLATE);
ofd = mkstemp(tempname);
if (ofd != -1)
output = fdopen(ofd, "wb+");
if (output == NULL)
err(2, "can't create temporary file");
fchmod(ofd, ist.st_mode & (S_IRWXU|S_IRWXG|S_IRWXO));
} else {
output = fopen(ofilename, "wb");
if (output == NULL)
err(2, "can't open %s", ofilename);
}
}
process();
abort();
}
/*
* Add the symbol defined in the kernel, simulating a pseudo module.
* Create a dummy module entry in the list of modules.
* This module is used to handle the exported kernel symbols.
*
* Load from the currently running kernel
* OR
* from a file containing kernel symbols from a different kernel.
* The file can be either a "System.map" file or a copy of "/proc/ksyms".
*
* Return -1 if any error.
*/
static int addksyms(const char *file_syms)
{
FILE *fp;
MODULE *mod = modules + n_modules++;
SYMBOL *symtab[MAX_MAP_SYM];
struct module_symbol *ksym;
unsigned int so_far = 0;
int is_mapfile = 0;
int n_syms = 0;
int size;
char line[PATH_MAX];
char *p;
mod->name = "-";
mod->defsym.n_syms = 0;
mod->defsym.symtab = NULL;
mod->undefs.n_syms = 0;
mod->undefs.symtab = NULL;
/* Fake the _mod_use_count_ symbol provided by insmod */
/* Dummy */
symtab[n_syms++] = addsym("mod_use_count_", mod, SYM_DEFINED, 0);
symtab[n_syms++] = addsym("__this_module", mod, SYM_DEFINED, 0);
/*
* Specification: depmod / kernel syms only
* When initialising its symbol table from the kernel
* depmod silently discards all symbol from loaded modules.
*
* This means that depmod may be used at any time to compute
* the dependancy table, even if there are modules already
* loaded.
*
* depmod use the kernel system call to obtain the
* symbol table, not /proc/ksyms.
*/
if (file_syms) {
if ((fp = fopen(file_syms, "r")) == NULL) {
bb_error_msg("Can't read %s", file_syms);
return -1;
}
if (!fgets(line, sizeof(line), fp)) {
fclose(fp);
bb_error_msg("premature EOF on %s", file_syms);
return -1;
}
p = strtok(line, " \t\n");
if (!p) {
fclose(fp);
bb_error_msg("Illegal format of %s", file_syms);
return -1;
}
if (!isspace(*line)) /* Adressless symbol? */
p = strtok(NULL, " \t\n");
/* The second word is either the symbol name or a type */
if (p && p[0] && !p[1]) { /* System.map */
is_mapfile = 1;
p = strtok(NULL, " \t\n");
} else { /* /proc/ksyms copy */
if (p && strtok(NULL, " \t\n"))
p = NULL;
}
if (p && strncmp(p, "GPLONLY_", 8) == 0)
p += 8;
if (p)
symtab[n_syms++] = addsym(p, mod, SYM_DEFINED, 0);
while (fgets(line, sizeof(line), fp)) {
if (!is_mapfile && strchr(line, '['))
continue;
p = strtok(line, " \t\n"); /* Skip first word */
if (!isspace(*line)) /* Adressless symbol? */
p = strtok(NULL, " \t\n");
if (is_mapfile) {
if (!p || !p[0] || p[1])
continue;
p = strtok(NULL, " \t\n");
/* Sparc has symbols like '.div' that need to be
* exported. They strip the '.' and prefix the
* symbol with '__sparc_dot_'. There is no need
* for 'sparc' in the name, other systems with
* the same problem should use just '__dot_'.
* Support both prefixes, ready for other
* systems.
* */
if (!strncmp(p, "__kstrtab___dot_", 15)) {
p += 15;
*p = '.';
}
else if (!strncmp(p, "__kstrtab___sparc_dot_", 21)) {
p += 21;
*p = '.';
}
else if (!strncmp(p, "__kstrtab_", 10))
p += 10;
else if (!strncmp(p, "__export_priv_", 14)) {
/* Sparc has some weird exported symbols marked
* __export_priv_ instead of the normal __kstrtab_.
* Replace the 'v' with '_' and point at the start of
* the '__' before the name. I see no good reason
* to use __export_priv_, but for compatibility with
* old sparc kernels, it is supported. Try to remove
* __export_priv_ from sparc and remove this code
* four releases after the last kernel that uses
* __export_priv_.
*/
p += 12;
*p = '_';
} else
continue;
}
if (strncmp(p, "GPLONLY_", 8) == 0)
p += 8;
assert(n_syms < MAX_MAP_SYM);
symtab[n_syms++] = addsym(p, mod, SYM_DEFINED, 0);
}
fclose(fp);
} else { /* Use the exported symbols from currently running kernel */
if (!new_get_kernel_info(K_SYMBOLS))
return -1;
for (ksym = ksyms; so_far < nksyms; ++so_far, ksym++) {
if (strncmp((char *)ksym->name, "GPLONLY_", 8) == 0)
ksym->name = ((char *)ksym->name) + 8;
assert(n_syms < MAX_MAP_SYM);
symtab[n_syms++] = addsym((char *)ksym->name, mod, SYM_DEFINED, 0);
}
}
size = n_syms * sizeof(SYMBOL *);
mod->defsym.symtab = (SYMBOL **)xmalloc(size);
mod->defsym.n_syms = n_syms;
memcpy(mod->defsym.symtab, symtab, size);
return 0;
}
/*
* The main program.
*/
int
main(int argc, char *argv[])
{
int opt;
while ((opt = getopt(argc, argv, "i:D:U:I:cdeklnst")) != -1)
switch (opt) {
case 'i': /* treat stuff controlled by these symbols as text */
/*
* For strict backwards-compatibility the U or D
* should be immediately after the -i but it doesn't
* matter much if we relax that requirement.
*/
opt = *optarg++;
if (opt == 'D')
addsym(true, true, optarg);
else if (opt == 'U')
addsym(true, false, optarg);
else
usage();
break;
case 'D': /* define a symbol */
addsym(false, true, optarg);
break;
case 'U': /* undef a symbol */
addsym(false, false, optarg);
break;
case 'I':
/* no-op for compatibility with cpp */
break;
case 'c': /* treat -D as -U and vice versa */
complement = true;
break;
case 'd':
debugging = true;
break;
case 'e': /* fewer errors from dodgy lines */
iocccok = true;
break;
case 'k': /* process constant #ifs */
killconsts = true;
break;
case 'l': /* blank deleted lines instead of omitting them */
lnblank = true;
break;
case 'n': /* add #line directive after deleted lines */
lnnum = true;
break;
case 's': /* only output list of symbols that control #ifs */
symlist = true;
break;
case 't': /* don't parse C comments */
text = true;
break;
default:
usage();
}
argc -= optind;
argv += optind;
if (argc > 1) {
errx(2, "can only do one file");
} else if (argc == 1 && strcmp(*argv, "-") != 0) {
filename = *argv;
input = fopen(filename, "r");
if (input == NULL)
err(2, "can't open %s", filename);
} else {
filename = "[stdin]";
input = stdin;
}
process();
abort(); /* bug */
}
/*
* The main program.
*/
int
main(int argc, char *argv[])
{
int opt;
while ((opt = getopt(argc, argv, "i:D:U:I:M:o:x:bBcdehKklmnsStV")) != -1)
switch (opt) {
case 'i': /* treat stuff controlled by these symbols as text */
/*
* For strict backwards-compatibility the U or D
* should be immediately after the -i but it doesn't
* matter much if we relax that requirement.
*/
opt = *optarg++;
if (opt == 'D')
addsym(true, true, optarg);
else if (opt == 'U')
addsym(true, false, optarg);
else
usage();
break;
case 'D': /* define a symbol */
addsym(false, true, optarg);
break;
case 'U': /* undef a symbol */
addsym(false, false, optarg);
break;
case 'I': /* no-op for compatibility with cpp */
break;
case 'b': /* blank deleted lines instead of omitting them */
case 'l': /* backwards compatibility */
lnblank = true;
break;
case 'B': /* compress blank lines around removed section */
compblank = true;
break;
case 'c': /* treat -D as -U and vice versa */
complement = true;
break;
case 'd':
debugging = true;
break;
case 'e': /* fewer errors from dodgy lines */
iocccok = true;
break;
case 'h':
help();
break;
case 'K': /* keep ambiguous #ifs */
strictlogic = true;
break;
case 'k': /* process constant #ifs */
killconsts = true;
break;
case 'm': /* modify in place */
inplace = true;
break;
case 'M': /* modify in place and keep backup */
inplace = true;
backext = optarg;
break;
case 'n': /* add #line directive after deleted lines */
lnnum = true;
break;
case 'o': /* output to a file */
ofilename = optarg;
break;
case 's': /* only output list of symbols that control #ifs */
symlist = true;
break;
case 'S': /* list symbols with their nesting depth */
symlist = symdepth = true;
break;
case 't': /* don't parse C comments */
text = true;
break;
case 'V':
version();
break;
case 'x':
exitmode = atoi(optarg);
if(exitmode < 0 || exitmode > 2)
usage();
break;
default:
usage();
}
argc -= optind;
argv += optind;
if (compblank && lnblank)
errx(2, "-B and -b are mutually exclusive");
if (symlist && (ofilename != NULL || inplace || argc > 1))
errx(2, "-s only works with one input file");
if (argc > 1 && ofilename != NULL)
errx(2, "-o cannot be used with multiple input files");
if (argc > 1 && !inplace)
errx(2, "multiple input files require -m or -M");
if (argc == 0)
argc = 1;
if (argc == 1 && !inplace && ofilename == NULL)
ofilename = "-";
atexit(cleantemp);
if (ofilename != NULL)
processinout(*argv, ofilename);
else while (argc-- > 0) {
processinout(*argv, *argv);
argv++;
}
switch(exitmode) {
case(0): exit(exitstat);
case(1): exit(!exitstat);
case(2): exit(0);
default: abort(); /* bug */
}
}
void rules( void )
{
a_sym *lhs, *sym, *precsym;
a_sym **rhs;
unsigned nrhs;
unsigned maxrhs = { 16 };
a_pro *pro;
char buffer[ 20 ];
unsigned i;
int numacts;
bool action_defined;
bool unit_production;
bool not_token;
a_SR_conflict_list *list_of_ambiguities;
a_SR_conflict_list *am;
rhs = CALLOC( maxrhs, a_sym * );
while( token == C_IDENTIFIER ) {
int sym_lineno = lineno;
lhs = addsym( buf );
if( lhs->token )
msg( "%s used on lhs.\n", lhs->name );
if( !startsym )
startsym = lhs;
numacts = 0;
do {
action_defined = FALSE;
precsym = NULL;
list_of_ambiguities = NULL;
nrhs = 0;
scanextra( 0, &precsym, &list_of_ambiguities );
for(;;) {
if( token != '{' && token != IDENTIFIER )
break;
if( nrhs + 2 > maxrhs )
rhs = REALLOC( rhs, maxrhs *= 2, a_sym * );
if( token == '{' ) {
i = bufused;
scanextra( bufused, &precsym, &list_of_ambiguities );
numacts++;
if( token == '{' || token == IDENTIFIER ) {
sprintf( buffer, "$pro%d", npro );
sym = addsym( buffer );
copyact( npro, sym, rhs, nrhs, nrhs );
addpro( sym, rhs, 0 );
} else {
copyact( npro, lhs, rhs, 0, nrhs );
action_defined = TRUE;
break;
}
memcpy( buf, &buf[ i ], bufused -= i );
} else {
sym = addsym( buf );
if( value )
sym->token = value;
if( sym->token )
precsym = sym;
scanextra( 0, &precsym, &list_of_ambiguities );
}
rhs[ nrhs++ ] = sym;
}
unit_production = FALSE;
if( ! action_defined ) {
if( nrhs > 0 ) {
/* { $$ = $1; } is default action */
if( defaultwarnflag ) {
char *type_lhs = type_name( lhs->type );
char *type_rhs = type_name( rhs[ 0 ]->type );
if( strcmp( type_rhs, type_lhs ) != 0 ) {
warn("default action would copy '%s <%s>' to '%s <%s>'\n",
rhs[ 0 ]->name, type_rhs, lhs->name, type_lhs );
}
}
if( nrhs == 1 ) {
unit_production = TRUE;
}
} else {
if( sym_lineno == lineno && token == '|' ) {
warn( "unexpected epsilon reduction for '%s'?\n", lhs->name );
}
}
}
pro = addpro( lhs, rhs, nrhs );
if( unit_production ) {
pro->unit = TRUE;
}
if( precsym ) {
pro->prec = precsym->prec;
}
if( list_of_ambiguities ) {
for( am = list_of_ambiguities; am != NULL; am = am->next ) {
am->pro = pro;
}
pro->SR_conflicts = list_of_ambiguities;
}
if( token == ';' ) {
do {
scan( 0 );
} while( token == ';' );
} else if( token != '|' ) {
if( token == C_IDENTIFIER ) {
msg( "Missing ';'\n" );
} else {
msg( "Incorrect syntax.\n" );
}
}
} while( token == '|' );
}
free( rhs );
not_token = FALSE;
for( sym = symlist; sym; sym = sym->next ) {
/* check for special symbols */
if( sym == eofsym )
continue;
if( denseflag ) {
if( sym->token != 0 && sym->token < TOKEN_DENSE_BASE ) {
continue;
}
} else {
if( sym->token != 0 && sym->token < TOKEN_SPARSE_BASE ) {
continue;
}
}
if( !sym->pro && !sym->token ) {
not_token = TRUE;
warn( "%s not defined as '%%token'.\n", sym->name );
}
}
if( not_token ) {
msg( "cannot continue (because of %%token problems)\n" );
}
copyUniqueActions();
}
void defs( void )
{
token_t gentoken;
a_sym *sym;
int ctype;
char *dupbuf( void );
char *type;
a_prec prec;
eofsym = make_sym( "$eof", TOKEN_EOF );
nosym = make_sym( "$impossible", TOKEN_IMPOSSIBLE );
errsym = make_sym( "error", TOKEN_ERROR );
if( denseflag ) {
gentoken = TOKEN_DENSE_BASE;
} else {
gentoken = TOKEN_SPARSE_BASE;
}
scan( 0 );
prec.prec = 0;
prec.assoc = NON_ASSOC;
for( ;; ) {
switch( token ) {
case MARK:
scan( 0 );
return;
case START:
if( scan( 0 ) != IDENTIFIER )
msg( "Identifier needed after %%start.\n" );
startsym = addsym( buf );
scan( 0 );
break;
case UNION:
if( scan( 0 ) != '{' ) {
msg( "Need '{' after %%union.\n" );
}
fprintf( actout, "#ifndef __YYSTYPE_DEFINED\n" );
fprintf( actout, "#define __YYSTYPE_DEFINED\n" );
fprintf( actout, "typedef union " );
lineinfo();
fprintf( actout, "%s YYSTYPE;\n", buf );
fprintf( actout, "#endif\n" );
fprintf( tokout, "#ifndef __YYSTYPE_DEFINED\n" );
fprintf( tokout, "#define __YYSTYPE_DEFINED\n" );
fprintf( tokout, "typedef union %s YYSTYPE;\n", buf );
fprintf( tokout, "#endif\n" );
scan( 0 );
break;
case LCURL:
lineinfo();
copycurl();
scan( 0 );
break;
case KEYWORD_ID:
switch( scan( 0 ) ) {
case IDENTIFIER:
sym = addsym( buf );
if( ! sym->token ) {
msg( "Token must be assigned number before %keyword_id\n" );
}
value = sym->token;
break;
case NUMBER:
break;
default:
msg( "Expecting identifier or number.\n" );
}
keyword_id_low = value;
switch( scan( 0 ) ) {
case IDENTIFIER:
sym = addsym( buf );
if( ! sym->token ) {
msg( "Token must be assigned number before %keyword_id\n" );
}
value = sym->token;
break;
case NUMBER:
break;
default:
msg( "Expecting identifier or number.\n" );
}
keyword_id_high = value;
scan( 0 );
break;
case LEFT:
case RIGHT:
case NONASSOC:
++prec.prec;
prec.assoc = value;
// pass through
case TOKEN:
case TYPE:
ctype = token;
if( scan( 0 ) == '<' ) {
if( scan_typename( 0 ) != TYPENAME ) {
msg( "Expecting type specifier.\n" );
}
type = dupbuf();
if( scan( 0 ) != '>' ) {
msg( "Expecting '>'.\n" );
}
scan( 0 );
} else {
type = NULL;
}
while( token == IDENTIFIER ) {
sym = addsym( buf );
if( type != NULL && sym->type != NULL ) {
if( strcmp( sym->type, type ) != 0 ) {
msg( "'%s' type redeclared from '%s' to '%s'\n",
buf, sym->type, type );
}
}
sym->type = type;
if( ctype == TYPE ) {
scan( 0 );
} else {
if( !sym->token ) {
sym->token = value;
}
if( ctype != TOKEN ) {
sym->prec = prec;
}
if( scan( 0 ) == NUMBER ) {
if( sym->token ) {
if( sym->name[ 0 ] != '\'' ) {
fprintf( tokout, "#undef\t%-20s\n", sym->name );
}
}
sym->token = value;
scan( 0 );
}
if( !sym->token ) {
sym->token = gentoken++;
}
if( sym->name[ 0 ] != '\'' ) {
fprintf( tokout, "#define\t%-20s\t0x%02x\n",
sym->name, sym->token );
}
}
if( token == ',' ) {
scan( 0 );
}
}
break;
default:
msg( "Incorrect syntax.\n" );
}
}
}
/*
* Extern variable not necessary common.
*/
void
extdec(struct symtab *q)
{
extern void addsym(struct symtab *);
addsym(q);
}
/*
* Read the symbols in an object and register them in the symbol table.
* Return -1 if there is an error.
*/
static int loadobj(const char *objname, int ignore_suffix)
{
static char *currdir;
static int currdir_len;
int fp;
MODULE *mod;
SYMBOL *undefs[5000];
SYMBOL *defsym[5000];
struct obj_file *f;
struct obj_section *sect;
struct obj_symbol *objsym;
int i;
int is_2_2;
int ksymtab;
int len;
int n_undefs = 0;
int n_defsym = 0;
char *p;
void *image;
unsigned long m_size;
p = strrchr(objname, '/');
len = 1 + (int)(p - objname);
if ((fp = open(objname, O_RDONLY)) < 0)
return 1;
if (!(f = obj_load(fp, ET_REL, objname))) {
close(fp);
return -1;
}
close(fp);
/*
* Allow arch code to define _GLOBAL_OFFSET_TABLE_
*/
arch_create_got(f);
/*
* If we have changed base directory
* then use the defined symbols from modules
* in the _same_ directory to resolve whatever
* undefined symbols there are.
*
* This strategy ensures that we will have
* as correct dependencies as possible,
* even if the same symbol is defined by
* other modules in other directories.
*/
if (currdir_len != len || currdir == NULL ||
strncmp(currdir, objname, len) != 0) {
if (currdir)
resolve();
currdir = bb_xstrdup(objname);
currdir_len = len;
}
mod = modules + n_modules++;
mod->name = bb_xstrdup(objname);
if ((sect = obj_find_section(f, "__ksymtab")) != NULL)
ksymtab = sect->idx; /* Only in 2.2 (or at least not 2.0) */
else
ksymtab = -1;
if (sect ||
obj_find_section(f, ".modinfo") ||
obj_find_symbol(f, "__this_module"))
is_2_2 = 1;
else
is_2_2 = 0;
for (i = 0; i < HASH_BUCKETS; ++i) {
for (objsym = f->symtab[i]; objsym; objsym = objsym->next) {
if (objsym->secidx == SHN_UNDEF) {
if (ELFW(ST_BIND)(objsym->info) != STB_WEAK &&
objsym->r_type /* assumes that R_arch_NONE is always 0 on all arch */) {
undefs[n_undefs++] = addsym(objsym->name,
mod,
SYM_UNDEF,
ignore_suffix);
}
continue;
}
/* else */
if (is_2_2 && ksymtab != -1) {
/* A 2.2 module using EXPORT_SYMBOL */
if (objsym->secidx == ksymtab &&
ELFW(ST_BIND)(objsym->info) == STB_GLOBAL) {
/* Ignore leading "__ksymtab_" */
defsym[n_defsym++] = addsym(objsym->name + 10,
mod,
SYM_DEFINED,
ignore_suffix);
}
continue;
}
/* else */
if (is_2_2) {
/*
* A 2.2 module _not_ using EXPORT_SYMBOL
* It might still want to export symbols,
* although strictly speaking it shouldn't...
* (Seen in pcmcia)
*/
if (ELFW(ST_BIND)(objsym->info) == STB_GLOBAL) {
defsym[n_defsym++] = addsym(objsym->name,
mod,
SYM_DEFINED,
ignore_suffix);
}
continue;
}
/* else */
/* Not undefined or 2.2 ksymtab entry */
if (objsym->secidx < SHN_LORESERVE
/*
* The test below is removed for 2.0 compatibility
* since some 2.0-modules (correctly) hide the
* symbols it exports via register_symtab()
*/
/* && ELFW(ST_BIND)(objsym->info) == STB_GLOBAL */
) {
defsym[n_defsym++] = addsym(objsym->name,
mod,
SYM_DEFINED,
ignore_suffix);
}
}
}
/*
* Finalize the information about a module.
*/
mod->defsym.n_syms = n_defsym;
if (n_defsym > 0) {
int size = n_defsym * sizeof(SYMBOL *);
mod->defsym.symtab = (SYMBOL **)xmalloc(size);
memcpy(mod->defsym.symtab, defsym, size);
} else
mod->defsym.symtab = NULL;
mod->undefs.n_syms = n_undefs;
if (n_undefs > 0) {
int size = n_undefs * sizeof(SYMBOL *);
mod->undefs.symtab = (SYMBOL **) xmalloc(size);
memcpy(mod->undefs.symtab, undefs, size);
mod->resolved = 0;
} else {
mod->undefs.symtab = NULL;
mod->resolved = 1;
}
/* Do a pseudo relocation to base address 0x1000 (arbitrary).
* All undefined symbols are treated as absolute 0. This builds
* enough of a module to allow extraction of internal data such
* as device tables.
*/
obj_clear_undefineds(f);
obj_allocate_commons(f);
m_size = obj_load_size(f);
if (!obj_relocate(f, 0x1000)) {
bb_error_msg("depmod obj_relocate failed\n");
return(-1);
}
extract_generic_string(f, mod);
image = xmalloc(m_size);
obj_create_image(f, image);
free(image);
obj_free(f);
return 0;
}
static RList* symbols(RBinFile *arch) {
ut32 *vtable = (ut32*)arch->buf->buf;
const char *name;
SMD_Header *hdr;
int i;
RList *ret = NULL;
if (!(ret = r_list_new ()))
return NULL;
ret->free = free;
// TODO: store all this stuff in SDB
hdr = (SMD_Header*)(arch->buf->buf + 0x100);
addsym (ret, "rom_start", hdr->RomStart);
addsym (ret, "rom_end", hdr->RomEnd);
addsym (ret, "ram_start", hdr->RamStart);
addsym (ret, "ram_end", hdr->RamEnd);
showstr ("Copyright", hdr->CopyRights, 32);
showstr ("DomesticName", hdr->DomesticName, 48);
showstr ("OverseasName", hdr->OverseasName, 48);
showstr ("ProductCode", hdr->ProductCode, 14);
eprintf ("Checksum: 0x%04x\n", (ut32)hdr->CheckSum);
showstr ("Peripherials", hdr->Peripherials, 16);
showstr ("SramCode", hdr->CountryCode, 12);
showstr ("ModemCode", hdr->CountryCode, 12);
showstr ("CountryCode", hdr->CountryCode, 16);
/* parse vtable */
for (i=0; i<64; i++) {
switch (i) {
case 0: name = "SSP"; break;
case 1: name = "Reset"; break;
case 2: name = "BusErr"; break;
case 3: name = "InvOpCode"; break;
case 4: name = "DivBy0"; break;
case 5: name = "Check"; break;
case 6: name = "TrapV"; break;
case 7: name = "GPF"; break;
case 8: name = "Trace"; break;
case 9: name = "Reserv0"; break;
case 10: name = "Reserv1"; break;
case 11: name = "Reserv2"; break;
case 12: name = "Reserv3"; break;
case 13: name = "Reserv4"; break;
case 14: name = "BadInt"; break;
case 15: name = "Reserv10"; break;
case 16: name = "Reserv11"; break;
case 17: name = "Reserv12"; break;
case 18: name = "Reserv13"; break;
case 19: name = "Reserv14"; break;
case 20: name = "Reserv15"; break;
case 21: name = "Reserv16"; break;
case 22: name = "Reserv17"; break;
case 23: name = "BadIRQ"; break;
case 24: name = "IRQ1"; break;
case 25: name = "EXT"; break;
case 26: name = "IRQ3"; break;
case 27: name = "HBLANK"; break;
case 28: name = "IRQ5"; break;
case 29: name = "VBLANK"; break;
case 30: name = "IRQ7"; break;
case 31: name = "Trap0"; break;
case 32: name = "Trap1"; break;
case 33: name = "Trap2"; break;
case 34: name = "Trap3"; break;
case 35: name = "Trap4"; break;
case 36: name = "Trap5"; break;
case 37: name = "Trap6"; break;
case 38: name = "Trap7"; break;
case 39: name = "Trap8"; break;
case 40: name = "Trap9"; break;
case 41: name = "Trap10"; break;
case 42: name = "Trap11"; break;
case 43: name = "Trap12"; break;
case 44: name = "Trap13"; break;
case 45: name = "Trap14"; break;
case 46: name = "Trap15"; break;
case 47: name = "Reserv30"; break;
case 48: name = "Reserv31"; break;
case 49: name = "Reserv32"; break;
case 50: name = "Reserv33"; break;
case 51: name = "Reserv34"; break;
case 52: name = "Reserv35"; break;
case 53: name = "Reserv36"; break;
case 54: name = "Reserv37"; break;
case 55: name = "Reserv38"; break;
case 56: name = "Reserv39"; break;
case 57: name = "Reserv3A"; break;
case 58: name = "Reserv3B"; break;
case 59: name = "Reserv3C"; break;
case 60: name = "Reserv3D"; break;
case 61: name = "Reserv3E"; break;
case 62: name = "Reserv3F"; break;
default: name = NULL;
}
if (!name || !vtable[i]) continue;
addsym (ret, name, vtable[i]);
}
return ret;
}
