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-rw-r--r--emulator/qtools/coverage.cpp153
1 files changed, 0 insertions, 153 deletions
diff --git a/emulator/qtools/coverage.cpp b/emulator/qtools/coverage.cpp
deleted file mode 100644
index 790f721..0000000
--- a/emulator/qtools/coverage.cpp
+++ /dev/null
@@ -1,153 +0,0 @@
-#include <stdio.h>
-#include <unistd.h>
-#include <stdlib.h>
-#include <string.h>
-#include <inttypes.h>
-#include "trace_reader.h"
-#include "parse_options.h"
-#include "opcode.h"
-
-const int kMillion = 1000000;
-const int kMHz = 200 * kMillion;
-
-struct symbol {
- int numCalls; // number of times this function is called
-};
-
-typedef TraceReader<symbol> TraceReaderType;
-
-#include "parse_options-inl.h"
-#include "callstack.h"
-
-class MyFrame : public StackFrame<symbol_type> {
- public:
- void push(int stackLevel, uint64_t time, CallStackBase *base) {
- function->numCalls += 1;
- }
- void pop(int stackLevel, uint64_t time, CallStackBase *base) {
- }
-};
-
-typedef CallStack<MyFrame> CallStackType;
-
-static const int kNumStackFrames = 500;
-static const int kMaxThreads = (32 * 1024);
-CallStackType *stacks[kMaxThreads];
-
-// This comparison function is called from qsort() to sort symbols
-// into decreasing number of calls.
-int cmp_sym_calls(const void *a, const void *b) {
- const symbol_type *syma, *symb;
- uint64_t calls1, calls2;
-
- syma = static_cast<symbol_type const *>(a);
- symb = static_cast<symbol_type const *>(b);
- calls1 = syma->numCalls;
- calls2 = symb->numCalls;
- if (calls1 < calls2)
- return 1;
- if (calls1 == calls2) {
- int cmp = strcmp(syma->name, symb->name);
- if (cmp == 0)
- cmp = strcmp(syma->region->path, symb->region->path);
- return cmp;
- }
- return -1;
-}
-
-// This comparison function is called from qsort() to sort symbols
-// into alphabetical order.
-int cmp_sym_names(const void *a, const void *b) {
- const symbol_type *syma, *symb;
-
- syma = static_cast<symbol_type const *>(a);
- symb = static_cast<symbol_type const *>(b);
- int cmp = strcmp(syma->region->path, symb->region->path);
- if (cmp == 0)
- cmp = strcmp(syma->name, symb->name);
- return cmp;
-}
-
-void Usage(const char *program)
-{
- fprintf(stderr, "Usage: %s [options] trace_file elf_file\n", program);
- OptionsUsage();
-}
-
-int main(int argc, char **argv)
-{
- ParseOptions(argc, argv);
- if (argc - optind != 2) {
- Usage(argv[0]);
- exit(1);
- }
-
- char *trace_filename = argv[optind++];
- char *elf_file = argv[optind++];
- TraceReader<symbol> *trace = new TraceReader<symbol>;
- trace->Open(trace_filename);
- trace->SetDemangle(demangle);
- trace->ReadKernelSymbols(elf_file);
- trace->SetRoot(root);
-
- BBEvent event;
- while (1) {
- BBEvent ignored;
- symbol_type *function;
-
- if (GetNextValidEvent(trace, &event, &ignored, &function))
- break;
- if (event.bb_num == 0)
- break;
-
- // Get the stack for the current thread
- CallStackType *pStack = stacks[event.pid];
-
- // If the stack does not exist, then allocate a new one.
- if (pStack == NULL) {
- pStack = new CallStackType(event.pid, kNumStackFrames, trace);
- stacks[event.pid] = pStack;
- }
-
- // Update the stack
- pStack->updateStack(&event, function);
- }
-
- for (int ii = 0; ii < kMaxThreads; ++ii) {
- if (stacks[ii])
- stacks[ii]->popAll(event.time);
- }
-
- int nsyms;
- symbol_type *syms = trace->GetSymbols(&nsyms);
-
- // Sort the symbols into decreasing number of calls
- qsort(syms, nsyms, sizeof(symbol_type), cmp_sym_names);
-
- symbol_type *psym = syms;
- for (int ii = 0; ii < nsyms; ++ii, ++psym) {
- // Ignore functions with non-zero calls
- if (psym->numCalls)
- continue;
-
- // Ignore some symbols
- if (strcmp(psym->name, "(end)") == 0)
- continue;
- if (strcmp(psym->name, "(unknown)") == 0)
- continue;
- if (strcmp(psym->name, ".plt") == 0)
- continue;
- const char *ksym = " ";
- if (psym->region->flags & region_type::kIsKernelRegion)
- ksym = "k";
- printf("%s %s %s\n", ksym, psym->name, psym->region->path);
-#if 0
- printf("#%d %5d %s %s %s\n", ii + 1, psym->numCalls, ksym, psym->name,
- psym->region->path);
-#endif
- }
- delete[] syms;
- delete trace;
-
- return 0;
-}