diff options
Diffstat (limited to 'third_party/glog/src/stacktrace_unittest.cc')
| -rw-r--r-- | third_party/glog/src/stacktrace_unittest.cc | 217 |
1 files changed, 0 insertions, 217 deletions
diff --git a/third_party/glog/src/stacktrace_unittest.cc b/third_party/glog/src/stacktrace_unittest.cc deleted file mode 100644 index 77d34291b3..0000000000 --- a/third_party/glog/src/stacktrace_unittest.cc +++ /dev/null @@ -1,217 +0,0 @@ -// Copyright (c) 2004, Google Inc. -// All rights reserved. -// -// Redistribution and use in source and binary forms, with or without -// modification, are permitted provided that the following conditions are -// met: -// -// * Redistributions of source code must retain the above copyright -// notice, this list of conditions and the following disclaimer. -// * Redistributions in binary form must reproduce the above -// copyright notice, this list of conditions and the following disclaimer -// in the documentation and/or other materials provided with the -// distribution. -// * Neither the name of Google Inc. nor the names of its -// contributors may be used to endorse or promote products derived from -// this software without specific prior written permission. -// -// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS -// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT -// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR -// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT -// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, -// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT -// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, -// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY -// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT -// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE -// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - -#include "utilities.h" - -#include <stdio.h> -#include <stdlib.h> -#include "config.h" -#include "base/commandlineflags.h" -#include "glog/logging.h" -#include "stacktrace.h" - -#ifdef HAVE_EXECINFO_H -# include <execinfo.h> -#endif - -using namespace GOOGLE_NAMESPACE; - -#ifdef HAVE_STACKTRACE - -// Obtain a backtrace, verify that the expected callers are present in the -// backtrace, and maybe print the backtrace to stdout. - -// The sequence of functions whose return addresses we expect to see in the -// backtrace. -const int BACKTRACE_STEPS = 6; - -struct AddressRange { - const void *start, *end; -}; - -// Expected function [start,end] range. -AddressRange expected_range[BACKTRACE_STEPS]; - -#if __GNUC__ -// Using GCC extension: address of a label can be taken with '&&label'. -// Start should be a label somewhere before recursive call, end somewhere -// after it. -#define INIT_ADDRESS_RANGE(fn, start_label, end_label, prange) \ - do { \ - (prange)->start = &&start_label; \ - (prange)->end = &&end_label; \ - CHECK_LT((prange)->start, (prange)->end); \ - } while (0) -// This macro expands into "unmovable" code (opaque to GCC), and that -// prevents GCC from moving a_label up or down in the code. -// Without it, there is no code following the 'end' label, and GCC -// (4.3.1, 4.4.0) thinks it safe to assign &&end an address that is before -// the recursive call. -#define DECLARE_ADDRESS_LABEL(a_label) \ - a_label: do { __asm__ __volatile__(""); } while (0) -// Gcc 4.4.0 may split function into multiple chunks, and the chunk -// performing recursive call may end up later in the code then the return -// instruction (this actually happens with FDO). -// Adjust function range from __builtin_return_address. -#define ADJUST_ADDRESS_RANGE_FROM_RA(prange) \ - do { \ - void *ra = __builtin_return_address(0); \ - CHECK_LT((prange)->start, ra); \ - if (ra > (prange)->end) { \ - printf("Adjusting range from %p..%p to %p..%p\n", \ - (prange)->start, (prange)->end, \ - (prange)->start, ra); \ - (prange)->end = ra; \ - } \ - } while (0) -#else -// Assume the Check* functions below are not longer than 256 bytes. -#define INIT_ADDRESS_RANGE(fn, start_label, end_label, prange) \ - do { \ - (prange)->start = reinterpret_cast<const void *>(&fn); \ - (prange)->end = reinterpret_cast<const char *>(&fn) + 256; \ - } while (0) -#define DECLARE_ADDRESS_LABEL(a_label) do { } while (0) -#define ADJUST_ADDRESS_RANGE_FROM_RA(prange) do { } while (0) -#endif // __GNUC__ - -//-----------------------------------------------------------------------// - -static void CheckRetAddrIsInFunction(void *ret_addr, const AddressRange &range) -{ - CHECK_GE(ret_addr, range.start); - CHECK_LE(ret_addr, range.end); -} - -//-----------------------------------------------------------------------// - -void ATTRIBUTE_NOINLINE CheckStackTrace(int); -static void ATTRIBUTE_NOINLINE CheckStackTraceLeaf(void) { - const int STACK_LEN = 10; - void *stack[STACK_LEN]; - int size; - - ADJUST_ADDRESS_RANGE_FROM_RA(&expected_range[1]); - INIT_ADDRESS_RANGE(CheckStackTraceLeaf, start, end, &expected_range[0]); - DECLARE_ADDRESS_LABEL(start); - size = GetStackTrace(stack, STACK_LEN, 0); - printf("Obtained %d stack frames.\n", size); - CHECK_GE(size, 1); - CHECK_LE(size, STACK_LEN); - - if (1) { -#ifdef HAVE_EXECINFO_H - char **strings = backtrace_symbols(stack, size); - printf("Obtained %d stack frames.\n", size); - for (int i = 0; i < size; i++) - printf("%s %p\n", strings[i], stack[i]); - printf("CheckStackTrace() addr: %p\n", &CheckStackTrace); - free(strings); -#endif - } - for (int i = 0; i < BACKTRACE_STEPS; i++) { - printf("Backtrace %d: expected: %p..%p actual: %p ... ", - i, expected_range[i].start, expected_range[i].end, stack[i]); - fflush(stdout); - CheckRetAddrIsInFunction(stack[i], expected_range[i]); - printf("OK\n"); - } - DECLARE_ADDRESS_LABEL(end); -} - -//-----------------------------------------------------------------------// - -/* Dummy functions to make the backtrace more interesting. */ -static void ATTRIBUTE_NOINLINE CheckStackTrace4(int i) { - ADJUST_ADDRESS_RANGE_FROM_RA(&expected_range[2]); - INIT_ADDRESS_RANGE(CheckStackTrace4, start, end, &expected_range[1]); - DECLARE_ADDRESS_LABEL(start); - for (int j = i; j >= 0; j--) - CheckStackTraceLeaf(); - DECLARE_ADDRESS_LABEL(end); -} -static void ATTRIBUTE_NOINLINE CheckStackTrace3(int i) { - ADJUST_ADDRESS_RANGE_FROM_RA(&expected_range[3]); - INIT_ADDRESS_RANGE(CheckStackTrace3, start, end, &expected_range[2]); - DECLARE_ADDRESS_LABEL(start); - for (int j = i; j >= 0; j--) - CheckStackTrace4(j); - DECLARE_ADDRESS_LABEL(end); -} -static void ATTRIBUTE_NOINLINE CheckStackTrace2(int i) { - ADJUST_ADDRESS_RANGE_FROM_RA(&expected_range[4]); - INIT_ADDRESS_RANGE(CheckStackTrace2, start, end, &expected_range[3]); - DECLARE_ADDRESS_LABEL(start); - for (int j = i; j >= 0; j--) - CheckStackTrace3(j); - DECLARE_ADDRESS_LABEL(end); -} -static void ATTRIBUTE_NOINLINE CheckStackTrace1(int i) { - ADJUST_ADDRESS_RANGE_FROM_RA(&expected_range[5]); - INIT_ADDRESS_RANGE(CheckStackTrace1, start, end, &expected_range[4]); - DECLARE_ADDRESS_LABEL(start); - for (int j = i; j >= 0; j--) - CheckStackTrace2(j); - DECLARE_ADDRESS_LABEL(end); -} -#ifndef __GNUC__ -// On non-GNU environment, we use the address of `CheckStackTrace` to -// guess the address range of this function. This guess is wrong for -// non-static function on Windows. This is probably because -// `&CheckStackTrace` returns the address of a trampoline like PLT, -// not the actual address of `CheckStackTrace`. -// See https://github.com/google/glog/issues/421 for the detail. -static -#endif -void ATTRIBUTE_NOINLINE CheckStackTrace(int i) { - INIT_ADDRESS_RANGE(CheckStackTrace, start, end, &expected_range[5]); - DECLARE_ADDRESS_LABEL(start); - for (int j = i; j >= 0; j--) - CheckStackTrace1(j); - DECLARE_ADDRESS_LABEL(end); -} - -//-----------------------------------------------------------------------// - -int main(int, char ** argv) { - FLAGS_logtostderr = true; - InitGoogleLogging(argv[0]); - - CheckStackTrace(0); - - printf("PASS\n"); - return 0; -} - -#else -int main() { - printf("PASS (no stacktrace support)\n"); - return 0; -} -#endif // HAVE_STACKTRACE |