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pdump.c
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pdump.c
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/* pdump.c
* Copyright: 2001-2003 The Perl Foundation. All Rights Reserved.
* CVS Info
* $Id$
* Overview:
* A program to dump pack files to human readable form.
* Data Structure and Algorithms:
* History:
* Notes:
* References:
*/
#include "parrot/parrot.h"
#include "parrot/embed.h"
/* s. packdump.c */
void PackFile_ConstTable_dump(struct Parrot_Interp *,
struct PackFile_ConstTable *);
void PackFile_Fixup_dump(Parrot_Interp , struct PackFile_FixupTable *ft);
static void
const_dump (struct Parrot_Interp *interpreter, struct PackFile_Segment *segp)
{
PIO_printf(interpreter, "%s => [\n", segp->name);
PackFile_ConstTable_dump(interpreter,
(struct PackFile_ConstTable *)segp);
PIO_printf(interpreter, "],\n");
}
static void
fixup_dump (struct Parrot_Interp *interpreter, struct PackFile_Segment *segp)
{
PIO_printf(interpreter, "%s => [\n", segp->name);
PackFile_Fixup_dump(interpreter,
(struct PackFile_FixupTable *)segp);
PIO_printf(interpreter, "],\n");
}
static void
disas_dump (struct Parrot_Interp *interpreter, struct PackFile_Segment *self)
{
opcode_t *pc;
size_t i;
PIO_printf(interpreter, "%s => [ # %d ops at offs 0x%x\n",
self->name, (int)self->size, (int)self->file_offset + 4);
pc = self->data;
while (pc < self->data + self->size) {
/* trace_op_dump(interpreter, self->pf->src, pc); */
PIO_printf(interpreter, " %04x: ", (int) (pc - self->data));
for (i = 0; i < 6; i++)
if (i < (size_t)interpreter->op_info_table[*pc].arg_count)
PIO_printf(interpreter, "%08lx ", (unsigned long) pc[i]);
else
PIO_printf(interpreter, " ");
PIO_printf(interpreter, "%s\n",
interpreter->op_info_table[*pc].full_name);
pc += interpreter->op_info_table[*pc].arg_count;
}
PIO_printf(interpreter, "]\n");
}
static void
PackFile_header_dump(struct Parrot_Interp *interpreter, struct PackFile *pf)
{
PIO_printf(interpreter, "HEADER => [\n");
PIO_printf(interpreter, "\twordsize = %d", pf->header->wordsize);
PIO_printf(interpreter, "\t(interpreter's wordsize = %d)\n",
sizeof(opcode_t));
PIO_printf(interpreter, "\tbyteorder = %d", pf->header->byteorder);
PIO_printf(interpreter, "\t(interpreter's byteorder = %d)\n",
PARROT_BIGENDIAN);
PIO_printf(interpreter, "\tfloattype = %d", pf->header->floattype);
PIO_printf(interpreter, "\t(interpreter's NUMVAL_SIZE = %d)\n",NUMVAL_SIZE);
PIO_printf(interpreter, "\t%s endianize, %s opcode, %s numval transform\n",
pf->need_endianize ? "**need**" : "no",
pf->need_wordsize ? "**need**" : "no",
pf->fetch_nv ? "**need**" : "no");
PIO_printf(interpreter, "\tdirformat = %d\n", pf->header->dir_format);
PIO_printf(interpreter, "]\n");
}
static void help(void)
{
printf("pdump - dump or convert parrot bytecode (PBC) files\n");
printf("usage:\n");
printf("pdump [-tdh] [--terse|--disassemble|--header-only] file.pbc\n");
printf("pdump -o converted.pbc file.pbc\n\n");
printf("\t-d ... disassemble bytecode segments\n");
printf("\t-h ... dump header only\n");
printf("\t-t ... terse output\n");
printf("\n\t-o converted.pbc repacks a PBC file into platforms native\n");
printf("\t binary format for better efficiency on reading "
"non native PBCs\n");
exit(0);
}
static struct longopt_opt_decl options[] = {
{ 'h', 'h', 0, { "--header-only" } },
{ '?', '?', 0, { "--help" } },
{ 't', 't', 0, { "--terse" } },
{ 'd', 'd', 0, { "--disassemble" } },
{ 'o', 'o', OPTION_required_FLAG, { "--output" } }
};
int
main(int argc, char **argv)
{
struct PackFile *pf;
struct Parrot_Interp *interpreter;
int terse = 0;
int disas = 0;
int convert = 0;
int header = 0;
const char *file;
struct longopt_opt_info opt = LONGOPT_OPT_INFO_INIT;
int status;
if (argc < 2) {
help();
}
interpreter = make_interpreter(NO_FLAGS);
Parrot_init(interpreter);
while ((status = longopt_get(interpreter,
argc, argv, options, &opt)) > 0) {
switch (opt.opt_id) {
case 'h':
header = 1;
break;
case 't':
terse = 1;
break;
case 'd':
disas = 1;
break;
case 'o':
file = opt.opt_arg;
convert = 1;
break;
case '?':
help();
break;
}
}
if (status == -1) {
help();
}
argc -= opt.opt_index;
argv += opt.opt_index;
pf = Parrot_readbc(interpreter, *argv);
if (!pf) {
printf("Can't read PBC\n");
return 1;
}
Parrot_loadbc(interpreter, pf);
if (convert) {
size_t size;
opcode_t *pack;
FILE *fp;
size = PackFile_pack_size(interpreter->code) * sizeof(opcode_t);
pack = (opcode_t*) mem_sys_allocate(size);
if (!pack) {
printf("out of mem\n");
exit(1);
}
PackFile_pack(interpreter->code, pack);
if (strcmp (file, "-") == 0)
fp = stdout;
else if ((fp = fopen(file, "wb")) == 0) {
printf("Couldn't open %s\n", file);
exit(1);
}
if ((1 != fwrite(pack, size, 1, fp)) ) {
printf("Couldn't write %s\n", file);
exit(1);
}
fclose(fp);
mem_sys_free(pack);
Parrot_exit(0);
}
PackFile_header_dump(interpreter, pf);
if (header) {
Parrot_exit(0);
}
/* install a dumper function */
if (!terse) {
pf->PackFuncs[PF_CONST_SEG].dump = const_dump;
pf->PackFuncs[PF_FIXUP_SEG].dump = fixup_dump;
}
if (disas)
pf->PackFuncs[PF_BYTEC_SEG].dump = disas_dump;
/* do a directory dump, which dumps segs then */
PackFile_Segment_dump(interpreter, &pf->directory.base);
Parrot_exit(0);
return 0;
}
/*
* Local variables:
* c-indentation-style: bsd
* c-basic-offset: 4
* indent-tabs-mode: nil
* End:
*
* vim: expandtab shiftwidth=4:
*/