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pbc_dump.c
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pbc_dump.c
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/*
Copyright (C) 2001-2009, Parrot Foundation.
$Id$
=head1 NAME
pbc_dump - Dump or convert Parrot bytecode (PBC) files
=head1 SYNOPSIS
pbc_dump [-tdh] [--terse|--disassemble|--header-only] file.pbc
pbc_dump -o converted.pbc file.pbc
=head1 DESCRIPTION
A program to dump pack files to human readable form.
=head2 Command-Line Options
=over 4
=item C<-d>
Disassemble bytecode segments.
=item C<-h>
Dump the bytecode header only.
=item C<-t>
Terse output.
=item C<-D> C--debug> 1-7
Display detailed packfile reader debugging information if
F<include/parrot/packfile.h> enables TRACE_PACKFILE.
1 print general debug info
2 print alignment info
4 print values
=item C<-o converted.pbc>
Repacks a PBC file into the platform's native binary format for better
efficiency on reading non-native PBCs.
=back
=head2 Functions
=over 4
=cut
*/
#include "parrot/parrot.h"
#include "parrot/embed.h"
#include "parrot/oplib/ops.h"
/*
=item C<static void const_dump(PARROT_INTERP, const PackFile_Segment *segp)>
Dump the constant table.
=cut
*/
static void
const_dump(PARROT_INTERP, const PackFile_Segment *segp)
{
Parrot_io_printf(interp, "%Ss => [\n", segp->name);
PackFile_ConstTable_dump(interp, (const PackFile_ConstTable *)segp);
Parrot_io_printf(interp, "],\n");
}
/*
=item C<static void fixup_dump(PARROT_INTERP, const PackFile_Segment *segp)>
Dump the fixup table.
=cut
*/
static void
fixup_dump(PARROT_INTERP, const PackFile_Segment *segp)
{
Parrot_io_printf(interp, "%Ss => [\n", segp->name);
PackFile_Fixup_dump(interp, (const PackFile_FixupTable *)segp);
Parrot_io_printf(interp, "],\n");
}
/*
=item C<static void disas_dump(PARROT_INTERP, const PackFile_Segment *self)>
Disassemble and dump.
=cut
*/
static void
disas_dump(PARROT_INTERP, const PackFile_Segment *self)
{
opcode_t *pc;
size_t i, n;
Parrot_io_printf(interp, "%Ss => [ # %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(interp, self->pf->src, pc); */
Parrot_io_printf(interp, " %04x: ", (int) (pc - self->data));
n = (size_t)interp->op_info_table[*pc].op_count;
for (i = 0; i < 6; i++)
if (i < n)
Parrot_io_printf(interp, "%08lx ", (unsigned long) pc[i]);
else
Parrot_io_printf(interp, " ");
Parrot_io_printf(interp, "%s\n",
interp->op_info_table[*pc].full_name);
ADD_OP_VAR_PART(interp, interp->code, pc, n);
pc += n;
}
Parrot_io_printf(interp, "]\n");
}
/*
=item C<static void PackFile_header_dump(PARROT_INTERP, PackFile *pf)>
Dump the header.
=cut
*/
static void
PackFile_header_dump(PARROT_INTERP, PackFile *pf)
{
Parrot_io_printf(interp, "HEADER => [\n");
Parrot_io_printf(interp, "\twordsize = %d", pf->header->wordsize);
Parrot_io_printf(interp, "\t(interpreter's wordsize/INTVAL = %d/%d)\n",
sizeof (opcode_t), sizeof (INTVAL));
Parrot_io_printf(interp, "\tbyteorder = %d", pf->header->byteorder);
Parrot_io_printf(interp, "\t(interpreter's byteorder = %d)\n",
PARROT_BIGENDIAN);
Parrot_io_printf(interp, "\tfloattype = %d", pf->header->floattype);
Parrot_io_printf(interp, "\t(interpreter's NUMVAL_SIZE = %d)\n", NUMVAL_SIZE);
Parrot_io_printf(interp, "\tparrot-version %d.%d.%d, bytecode-version %d.%d\n",
pf->header->major, pf->header->minor, pf->header->patch,
pf->header->bc_major, pf->header->bc_minor);
Parrot_io_printf(interp, "\tUUID: type = %d, size = %d",
pf->header->uuid_type, pf->header->uuid_size);
if (pf->header->uuid_size)
Parrot_io_printf(interp, ", '%s'\n", pf->header->uuid_data);
else
Parrot_io_printf(interp, "\n");
Parrot_io_printf(interp, "\t%s endianize, %s opcode, %s numval transform\n",
pf->need_endianize ? "**need**" : "no",
pf->need_wordsize ? "**need**" : "no",
pf->fetch_nv ? "**need**" : "no");
Parrot_io_printf(interp, "\tdirformat = %d\n", pf->header->dir_format);
Parrot_io_printf(interp, "]\n");
}
/*
=item C<static void help(void)>
Print out the user help info.
=cut
*/
static void help(void)
{
printf("pbc_dump - dump or convert parrot bytecode (PBC) files\n");
printf("usage:\n");
printf("pbc_dump [-tdh] [--terse|--disassemble|--header-only] file.pbc\n");
printf("pbc_dump -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");
#if TRACE_PACKFILE
printf("\t-D<1-7> --debug debug output\n");
printf("\t 1 general info\n");
printf("\t 2 alignment\n");
printf("\t 4 values\n");
#endif
printf("\t-o converted.pbc ... repacks a PBC file into "
"the platform's native\n");
printf("\t binary format for better efficiency on reading "
"non native PBCs\n");
exit(EXIT_SUCCESS);
}
static struct longopt_opt_decl opt_options[] = {
{ 'h', 'h', OPTION_optional_FLAG, { "--header-only" } },
{ '?', '?', OPTION_optional_FLAG, { "--help" } },
{ 't', 't', OPTION_optional_FLAG, { "--terse" } },
{ 'd', 'd', OPTION_optional_FLAG, { "--disassemble" } },
#if TRACE_PACKFILE
{ 'D', 'D', OPTION_required_FLAG, { "--debug" } },
#endif
{ 'o', 'o', OPTION_required_FLAG, { "--output" } }
};
/*
=item C<int main(int argc, const char **argv)>
The run loop. Process the command-line arguments and dump accordingly.
=cut
*/
int
main(int argc, const char **argv)
{
PackFile *pf;
Interp *interp;
int terse = 0;
int disas = 0;
int convert = 0;
int options = PFOPT_UTILS;
const char *file = NULL;
struct longopt_opt_info opt = LONGOPT_OPT_INFO_INIT;
int status;
if (argc < 2) {
help();
}
interp = Parrot_new(NULL);
/* init and set top of stack */
Parrot_init_stacktop(interp, &status);
while ((status = longopt_get(interp,
argc, argv, opt_options, &opt)) > 0) {
switch (opt.opt_id) {
case 'h':
options += PFOPT_HEADERONLY;
break;
case 't':
terse = 1;
break;
case 'd':
disas = 1;
break;
#if TRACE_PACKFILE
case 'D':
options += atoi(opt.opt_arg) << 2;
break;
#endif
case 'o':
file = opt.opt_arg;
convert = 1;
break;
case '?':
default:
help();
break;
}
}
if (status == -1) {
help();
}
argc -= opt.opt_index;
argv += opt.opt_index;
pf = Parrot_pbc_read(interp, *argv, options);
if (!pf) {
printf("Can't read PBC\n");
return 1;
}
Parrot_pbc_load(interp, pf);
if (convert) {
size_t size;
opcode_t *pack;
FILE *fp;
size = PackFile_pack_size(interp,
interp->code->base.pf) * sizeof (opcode_t);
pack = (opcode_t*) mem_sys_allocate(size);
if (!pack) {
printf("out of mem\n");
exit(EXIT_FAILURE);
}
PackFile_pack(interp, interp->code->base.pf, pack);
if (STREQ(file, "-"))
fp = stdout;
else if ((fp = fopen(file, "wb")) == 0) {
printf("Couldn't open %s\n", file);
exit(EXIT_FAILURE);
}
if ((1 != fwrite(pack, size, 1, fp))) {
printf("Couldn't write %s\n", file);
exit(EXIT_FAILURE);
}
fclose(fp);
mem_sys_free(pack);
Parrot_exit(interp, 0);
}
PackFile_header_dump(interp, pf);
if (options & PFOPT_HEADERONLY) {
Parrot_exit(interp, 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(interp, &pf->directory.base);
Parrot_exit(interp, 0);
}
/*
=back
=head1 SEE ALSO
F<src/packdump.c>.
=cut
*/
/*
* Local variables:
* c-file-style: "parrot"
* End:
* vim: expandtab shiftwidth=4:
*/