109 lines
2.9 KiB
C++
109 lines
2.9 KiB
C++
// Copyright 2006 The Android Open Source Project
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#include <stdio.h>
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#include <unistd.h>
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#include <stdlib.h>
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#include <inttypes.h>
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#include <assert.h>
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#include "trace_reader.h"
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#include "gtrace.h"
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#include "bitvector.h"
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#include "parse_options.h"
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struct symbol {
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int filenum; // the file number (for gtrace)
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int procnum; // the procedure number (for gtrace)
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};
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typedef TraceReader<symbol> TraceReaderType;
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#include "parse_options-inl.h"
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const int kMaxProcNum = 4095;
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int next_filenum = 1;
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int next_procnum = 1;
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void Usage(const char *program)
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{
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fprintf(stderr, "Usage: %s [options] trace_file elf_file gtrace_file\n",
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program);
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OptionsUsage();
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}
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int main(int argc, char **argv)
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{
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ParseOptions(argc, argv);
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if (argc - optind != 3) {
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Usage(argv[0]);
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exit(1);
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}
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char *qemu_trace_file = argv[optind++];
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char *elf_file = argv[optind++];
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char *gtrace_file = argv[optind++];
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TraceReader<symbol> *trace = new TraceReader<symbol>;
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trace->Open(qemu_trace_file);
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trace->ReadKernelSymbols(elf_file);
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trace->SetRoot(root);
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TraceHeader *qheader = trace->GetHeader();
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// Get the first valid event to get the process id for the gtrace header.
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BBEvent event;
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BBEvent ignored;
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symbol_type *sym;
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if (GetNextValidEvent(trace, &event, &ignored, &sym))
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return 0;
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Gtrace *gtrace = new Gtrace;
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gtrace->Open(gtrace_file, qheader->pdate, qheader->ptime);
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gtrace->WriteFirstHeader(qheader->start_sec, event.pid);
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symbol_type *prev_sym = NULL;
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bool eof = false;
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while (!eof) {
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if (sym != prev_sym) {
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// This procedure is different from the previous procedure.
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// If we have never seen this symbol before, then add it to the
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// list of known procedures.
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if (sym->filenum == 0) {
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sym->filenum = next_filenum;
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sym->procnum = next_procnum;
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gtrace->AddProcedure(sym->filenum, sym->procnum, sym->name);
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next_procnum += 1;
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if (next_procnum > kMaxProcNum) {
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next_filenum += 1;
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next_procnum = 1;
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}
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}
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// If we haven't yet recorded the procedure exit for the previous
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// procedure, then do it now.
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if (prev_sym) {
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gtrace->AddProcExit(prev_sym->filenum, prev_sym->procnum, event.time,
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event.pid);
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}
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// If this is not the terminating record, then record a procedure
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// entry.
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if (event.bb_num != 0) {
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gtrace->AddProcEntry(sym->filenum, sym->procnum, event.time, event.pid);
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prev_sym = sym;
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}
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}
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eof = GetNextValidEvent(trace, &event, &ignored, &sym);
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if (ignored.time != 0 && prev_sym) {
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// We read an event that we are ignoring.
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// If we haven't already recorded a procedure exit, then do so.
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gtrace->AddProcExit(prev_sym->filenum, prev_sym->procnum, ignored.time,
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ignored.pid);
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prev_sym = NULL;
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}
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}
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delete gtrace;
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delete trace;
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return 0;
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}
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