int pttc_main(const struct pttc_options *options)
{
int errcode;
enum { buflen = 1024 };
uint8_t buf[buflen];
struct pt_config conf;
pt_config_init(&conf);
conf.cpu = options->cpu;
conf.begin = buf;
conf.end = buf+buflen;
/* apply errata for the chosen cpu. */
errcode = pt_cpu_errata(&conf.errata, &conf.cpu);
if (errcode < 0) {
fprintf(stderr, "fatal: errata configuration failed %d: %s\n",
errcode, pt_errstr(pt_errcode(errcode)));
return errcode;
}
errcode = parse(options->pttfile, &conf);
if (errcode < 0 && errcode != -err_run)
fprintf(stderr, "fatal: %s\n", errstr[-errcode]);
return -errcode;
}
void arch_ptAnalyze(honggfuzz_t * hfuzz, fuzzer_t * fuzzer)
{
struct perf_event_mmap_page *pem = (struct perf_event_mmap_page *)fuzzer->linux.perfMmapBuf;
struct pt_config ptc;
pt_config_init(&ptc);
ptc.begin = &fuzzer->linux.perfMmapAux[pem->aux_tail];
ptc.end = &fuzzer->linux.perfMmapAux[pem->aux_head - 1];
int errcode = pt_cpu_errata(&ptc.errata, &ptc.cpu);
if (errcode < 0) {
LOG_F("pt_errata() failed: %s", pt_errstr(errcode));
}
struct pt_packet_decoder *ptd = pt_pkt_alloc_decoder(&ptc);
if (ptd == NULL) {
LOG_F("pt_pkt_alloc_decoder() failed");
}
defer {
pt_pkt_free_decoder(ptd);
};
errcode = pt_pkt_sync_forward(ptd);
if (errcode < 0) {
LOG_W("pt_pkt_sync_forward() failed: %s", pt_errstr(errcode));
return;
}
struct pt_last_ip last_ip;
pt_last_ip_init(&last_ip);
for (;;) {
struct pt_packet packet;
errcode = pt_pkt_next(ptd, &packet, sizeof(packet));
if (errcode == -pte_eos) {
break;
}
if (errcode < 0) {
LOG_W("pt_pkt_next() failed: %s", pt_errstr(errcode));
break;
}
perf_ptAnalyzePkt(hfuzz, fuzzer, &packet, &ptc, &last_ip);
}
}
static struct ptunit_result tfix_init(struct test_fixture *tfix)
{
struct pt_config *config;
uint8_t *buffer;
int errcode;
config = &tfix->config;
buffer = tfix->buffer;
memset(buffer, 0, sizeof(tfix->buffer));
pt_config_init(config);
config->begin = buffer;
config->end = buffer + sizeof(tfix->buffer);
errcode = pt_pkt_decoder_init(&tfix->decoder, config);
ptu_int_eq(errcode, 0);
return ptu_passed();
}
extern int main(int argc, char *argv[])
{
struct pt_image_section_cache *iscache;
struct ptxed_decoder decoder;
struct ptxed_options options;
struct ptxed_stats stats;
struct pt_config config;
struct pt_image *image;
const char *prog;
int errcode, i;
if (!argc) {
help("");
return 1;
}
prog = argv[0];
iscache = NULL;
image = NULL;
memset(&decoder, 0, sizeof(decoder));
decoder.type = pdt_block_decoder;
memset(&options, 0, sizeof(options));
memset(&stats, 0, sizeof(stats));
pt_config_init(&config);
iscache = pt_iscache_alloc(NULL);
if (!iscache) {
fprintf(stderr,
"%s: failed to allocate image section cache.\n", prog);
goto err;
}
image = pt_image_alloc(NULL);
if (!image) {
fprintf(stderr, "%s: failed to allocate image.\n", prog);
goto err;
}
for (i = 1; i < argc;) {
char *arg;
arg = argv[i++];
if (strcmp(arg, "--help") == 0 || strcmp(arg, "-h") == 0) {
help(prog);
goto out;
}
if (strcmp(arg, "--version") == 0) {
version(prog);
goto out;
}
if (strcmp(arg, "--pt") == 0) {
if (argc <= i) {
fprintf(stderr,
"%s: --pt: missing argument.\n", prog);
goto out;
}
arg = argv[i++];
if (ptxed_have_decoder(&decoder)) {
fprintf(stderr,
"%s: duplicate pt sources: %s.\n",
prog, arg);
goto err;
}
errcode = pt_cpu_errata(&config.errata, &config.cpu);
if (errcode < 0)
goto err;
errcode = load_pt(&config, arg, prog);
if (errcode < 0)
goto err;
switch (decoder.type) {
case pdt_insn_decoder:
decoder.variant.insn =
pt_insn_alloc_decoder(&config);
if (!decoder.variant.insn) {
fprintf(stderr, "%s: failed to create "
"decoder.\n", prog);
goto err;
}
errcode =
pt_insn_set_image(decoder.variant.insn,
image);
if (errcode < 0) {
fprintf(stderr,
"%s: failed to set image.\n",
prog);
goto err;
}
break;
case pdt_block_decoder:
decoder.variant.block =
pt_blk_alloc_decoder(&config);
if (!decoder.variant.block) {
fprintf(stderr, "%s: failed to create "
"decoder.\n", prog);
goto err;
}
errcode =
pt_blk_set_image(decoder.variant.block,
image);
if (errcode < 0) {
fprintf(stderr,
"%s: failed to set image.\n",
prog);
goto err;
}
break;
}
continue;
}
if (strcmp(arg, "--raw") == 0) {
if (argc <= i) {
fprintf(stderr,
"%s: --raw: missing argument.\n", prog);
goto out;
}
arg = argv[i++];
errcode = load_raw(iscache, image, arg, prog);
if (errcode < 0)
goto err;
continue;
}
#if defined(FEATURE_ELF)
if (strcmp(arg, "--elf") == 0) {
uint64_t base;
if (argc <= i) {
fprintf(stderr,
"%s: --elf: missing argument.\n", prog);
goto out;
}
arg = argv[i++];
base = 0ull;
errcode = extract_base(arg, &base);
if (errcode < 0)
goto err;
errcode = load_elf(iscache, image, arg, base, prog,
options.track_image);
if (errcode < 0)
goto err;
continue;
}
#endif /* defined(FEATURE_ELF) */
if (strcmp(arg, "--att") == 0) {
options.att_format = 1;
continue;
}
if (strcmp(arg, "--no-inst") == 0) {
options.dont_print_insn = 1;
continue;
}
if (strcmp(arg, "--quiet") == 0 || strcmp(arg, "-q") == 0) {
options.quiet = 1;
continue;
}
if (strcmp(arg, "--offset") == 0) {
options.print_offset = 1;
continue;
}
if (strcmp(arg, "--time") == 0) {
options.print_time = 1;
continue;
}
if (strcmp(arg, "--raw-insn") == 0) {
options.print_raw_insn = 1;
continue;
}
if (strcmp(arg, "--stat") == 0) {
options.print_stats = 1;
continue;
}
if (strcmp(arg, "--stat:insn") == 0) {
stats.flags |= ptxed_stat_insn;
continue;
}
if (strcmp(arg, "--stat:blocks") == 0) {
stats.flags |= ptxed_stat_blocks;
continue;
}
if (strcmp(arg, "--cpu") == 0) {
/* override cpu information before the decoder
* is initialized.
*/
if (ptxed_have_decoder(&decoder)) {
fprintf(stderr,
"%s: please specify cpu before the pt source file.\n",
prog);
goto err;
}
if (argc <= i) {
fprintf(stderr,
"%s: --cpu: missing argument.\n", prog);
goto out;
}
arg = argv[i++];
if (strcmp(arg, "auto") == 0) {
errcode = pt_cpu_read(&config.cpu);
if (errcode < 0) {
fprintf(stderr,
"%s: error reading cpu: %s.\n",
prog,
pt_errstr(pt_errcode(errcode)));
return 1;
}
continue;
}
if (strcmp(arg, "none") == 0) {
memset(&config.cpu, 0, sizeof(config.cpu));
continue;
}
errcode = pt_cpu_parse(&config.cpu, arg);
if (errcode < 0) {
fprintf(stderr,
"%s: cpu must be specified as f/m[/s]\n",
prog);
goto err;
}
continue;
}
if (strcmp(arg, "--mtc-freq") == 0) {
if (!get_arg_uint8(&config.mtc_freq, "--mtc-freq",
argv[i++], prog))
goto err;
continue;
}
if (strcmp(arg, "--nom-freq") == 0) {
if (!get_arg_uint8(&config.nom_freq, "--nom-freq",
argv[i++], prog))
goto err;
continue;
}
if (strcmp(arg, "--cpuid-0x15.eax") == 0) {
if (!get_arg_uint32(&config.cpuid_0x15_eax,
"--cpuid-0x15.eax", argv[i++],
prog))
goto err;
continue;
}
if (strcmp(arg, "--cpuid-0x15.ebx") == 0) {
if (!get_arg_uint32(&config.cpuid_0x15_ebx,
"--cpuid-0x15.ebx", argv[i++],
prog))
goto err;
continue;
}
if (strcmp(arg, "--verbose") == 0 || strcmp(arg, "-v") == 0) {
options.track_image = 1;
continue;
}
if (strcmp(arg, "--insn-decoder") == 0) {
if (ptxed_have_decoder(&decoder)) {
fprintf(stderr,
"%s: please specify %s before the pt "
"source file.\n", arg, prog);
goto err;
}
decoder.type = pdt_insn_decoder;
continue;
}
if (strcmp(arg, "--block-decoder") == 0) {
if (ptxed_have_decoder(&decoder)) {
fprintf(stderr,
"%s: please specify %s before the pt "
"source file.\n", arg, prog);
goto err;
}
decoder.type = pdt_block_decoder;
continue;
}
if (strcmp(arg, "--block:show-blocks") == 0) {
options.track_blocks = 1;
continue;
}
if (strcmp(arg, "--block:end-on-call") == 0) {
config.flags.variant.block.end_on_call = 1;
continue;
}
fprintf(stderr, "%s: unknown option: %s.\n", prog, arg);
goto err;
}
if (!ptxed_have_decoder(&decoder)) {
fprintf(stderr, "%s: no pt file.\n", prog);
goto err;
}
xed_tables_init();
/* If we didn't select any statistics, select them all depending on the
* decoder type.
*/
if (options.print_stats && !stats.flags) {
stats.flags |= ptxed_stat_insn;
if (decoder.type == pdt_block_decoder)
stats.flags |= ptxed_stat_blocks;
}
decode(&decoder, iscache, &options,
options.print_stats ? &stats : NULL);
if (options.print_stats)
print_stats(&stats);
out:
ptxed_free_decoder(&decoder);
pt_image_free(image);
pt_iscache_free(iscache);
return 0;
err:
ptxed_free_decoder(&decoder);
pt_image_free(image);
pt_iscache_free(iscache);
return 1;
}