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//===-- sanitizer_common_libcdep.cc ---------------------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This file is shared between AddressSanitizer and ThreadSanitizer
// run-time libraries.
//===----------------------------------------------------------------------===//
#include "sanitizer_common.h"
#include "sanitizer_flags.h"
#include "sanitizer_stacktrace.h"
#include "sanitizer_symbolizer.h"
namespace __sanitizer {
bool PrintsToTty() {
MaybeOpenReportFile();
return internal_isatty(report_fd) != 0;
}
bool PrintsToTtyCached() {
// FIXME: Add proper Windows support to AnsiColorDecorator and re-enable color
// printing on Windows.
if (SANITIZER_WINDOWS)
return 0;
static int cached = 0;
static bool prints_to_tty;
if (!cached) { // Not thread-safe.
prints_to_tty = PrintsToTty();
cached = 1;
}
return prints_to_tty;
}
bool ColorizeReports() {
const char *flag = common_flags()->color;
return internal_strcmp(flag, "always") == 0 ||
(internal_strcmp(flag, "auto") == 0 && PrintsToTtyCached());
}
static void (*sandboxing_callback)();
void SetSandboxingCallback(void (*f)()) {
sandboxing_callback = f;
}
void ReportErrorSummary(const char *error_type, StackTrace *stack) {
if (!common_flags()->print_summary)
return;
#if !SANITIZER_GO
if (stack->size > 0 && Symbolizer::GetOrInit()->CanReturnFileLineInfo()) {
// Currently, we include the first stack frame into the report summary.
// Maybe sometimes we need to choose another frame (e.g. skip memcpy/etc).
uptr pc = StackTrace::GetPreviousInstructionPc(stack->trace[0]);
SymbolizedStack *frame = Symbolizer::GetOrInit()->SymbolizePC(pc);
const AddressInfo &ai = frame->info;
ReportErrorSummary(error_type, ai.file, ai.line, ai.function);
frame->ClearAll();
}
#else
AddressInfo ai;
ReportErrorSummary(error_type, ai.file, ai.line, ai.function);
#endif
}
} // namespace __sanitizer
void NOINLINE
__sanitizer_sandbox_on_notify(__sanitizer_sandbox_arguments *args) {
PrepareForSandboxing(args);
if (sandboxing_callback)
sandboxing_callback();
}
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