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#include <stdio.h>
#include <unistd.h>
#include <stdlib.h>
#include <inttypes.h>
#include <assert.h>
#include "trace_reader.h"
#include "armdis.h"
#include "parse_options.h"
typedef TraceReader<> TraceReaderType;
#include "parse_options-inl.h"
static const uint32_t kOffsetThreshold = 0x100000;
static uint64_t startTime = 0;
void Usage(const char *program)
{
fprintf(stderr,
"Usage: %s [options] [-- -s start_time] trace_file elf_file\n",
program);
OptionsUsage();
}
bool localParseOptions(int argc, char **argv)
{
bool err = false;
while (!err) {
int opt = getopt(argc, argv, "+s:");
if (opt == -1)
break;
switch (opt) {
case 's':
startTime = strtoull(optarg, NULL, 0);
break;
default:
err = true;
break;
}
}
return err;
}
int main(int argc, char **argv) {
// Parse the options
ParseOptions(argc, argv);
localParseOptions(argc, argv);
if (argc - optind != 2) {
Usage(argv[0]);
exit(1);
}
char *trace_filename = argv[optind++];
char *elf_file = argv[optind++];
TraceReader<> *trace = new TraceReader<>;
trace->Open(trace_filename);
trace->SetDemangle(demangle);
trace->ReadKernelSymbols(elf_file);
trace->SetRoot(root);
while (1) {
symbol_type *sym;
char buf[1024];
BBEvent event;
BBEvent ignored;
if (GetNextValidEvent(trace, &event, &ignored, &sym))
break;
#if 0
fprintf(stderr, "t%llu bb %lld %d\n",
event.time, event.bb_num, event.num_insns);
#endif
uint32_t *insns = event.insns;
uint32_t addr = event.bb_addr;
uint32_t offset = addr - sym->addr - sym->region->base_addr;
symbol_type *vm_sym = sym->vm_sym;
const char *vm_name = NULL;
if (vm_sym != NULL) {
vm_name = vm_sym->name;
offset = addr - vm_sym->addr - vm_sym->region->base_addr;
}
#if 0
if (strcmp(sym->name, "(unknown)") == 0 || offset > kOffsetThreshold) {
ProcessState *process = trace->GetCurrentProcess();
ProcessState *manager = process->addr_manager;
for (int ii = 0; ii < manager->nregions; ++ii) {
printf(" %2d: %08x - %08x base: %08x offset: %u nsyms: %4d flags: 0x%x %s\n",
ii,
manager->regions[ii]->vstart,
manager->regions[ii]->vend,
manager->regions[ii]->base_addr,
manager->regions[ii]->file_offset,
manager->regions[ii]->nsymbols,
manager->regions[ii]->flags,
manager->regions[ii]->path);
int nsymbols = manager->regions[ii]->nsymbols;
for (int jj = 0; jj < 10 && jj < nsymbols; ++jj) {
printf(" %08x %s\n",
manager->regions[ii]->symbols[jj].addr,
manager->regions[ii]->symbols[jj].name);
}
}
}
#endif
#if 1
for (int ii = 0; ii < event.num_insns; ++ii) {
uint64_t sim_time = trace->ReadInsnTime(event.time);
if (sim_time < startTime)
continue;
uint32_t insn = insns[ii];
char *disasm;
int bytes;
if (vm_name != NULL) {
sprintf(buf, "%s+%02x: %s", vm_name, offset, sym->name);
} else {
sprintf(buf, "%s+%02x", sym->name, offset);
}
if (insn_is_thumb(insn)) {
bytes = 2;
insn = insn_unwrap_thumb(insn);
// thumb_pair is true if this is the first of a pair of
// thumb instructions (BL or BLX).
bool thumb_pair = ((insn & 0xf800) == 0xf000);
// Get the next thumb instruction (if any) because we may need
// it for the case where insn is BL or BLX.
uint32_t insn2 = 0;
if (thumb_pair && (ii + 1 < event.num_insns)) {
insn2 = insns[ii + 1];
insn2 = insn_unwrap_thumb(insn2);
bytes = 4;
ii += 1;
}
disasm = disasm_insn_thumb(addr, insn, insn2, NULL);
if (thumb_pair) {
printf("%llu p%-4d %08x %04x %04x %-30s %s\n",
sim_time, event.pid, addr, insn, insn2, buf, disasm);
} else {
printf("%llu p%-4d %08x %04x %-30s %s\n",
sim_time, event.pid, addr, insn, buf, disasm);
}
} else {
bytes = 4;
disasm = Arm::disasm(addr, insn, NULL);
printf("%llu p%-4d %08x %08x %-30s %s\n",
sim_time, event.pid, addr, insn, buf, disasm);
}
//printf("t%llu \t%08x\n", sim_time, addr);
addr += bytes;
offset += bytes;
}
#endif
#if 0
assert(offset < kOffsetThreshold);
#endif
}
delete trace;
return 0;
}
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