| // Copyright (c) 2005, 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. |
| |
| // --- |
| // Author: Sanjay Ghemawat |
| // |
| // Produce stack trace. |
| // |
| // There are three different ways we can try to get the stack trace: |
| // |
| // 1) Our hand-coded stack-unwinder. This depends on a certain stack |
| // layout, which is used by gcc (and those systems using a |
| // gcc-compatible ABI) on x86 systems, at least since gcc 2.95. |
| // It uses the frame pointer to do its work. |
| // |
| // 2) The libunwind library. This is still in development, and as a |
| // separate library adds a new dependency, abut doesn't need a frame |
| // pointer. It also doesn't call malloc. |
| // |
| // 3) The gdb unwinder -- also the one used by the c++ exception code. |
| // It's obviously well-tested, but has a fatal flaw: it can call |
| // malloc() from the unwinder. This is a problem because we're |
| // trying to use the unwinder to instrument malloc(). |
| // |
| // Note: if you add a new implementation here, make sure it works |
| // correctly when GetStackTrace() is called with max_depth == 0. |
| // Some code may do that. |
| |
| #include <config.h> |
| #include <gperftools/stacktrace.h> |
| #include "stacktrace_config.h" |
| |
| #if defined(STACKTRACE_INL_HEADER) |
| |
| #define IS_STACK_FRAMES 0 |
| #define IS_WITH_CONTEXT 0 |
| #define GET_STACK_TRACE_OR_FRAMES \ |
| GetStackTrace(void **result, int max_depth, int skip_count) |
| #include STACKTRACE_INL_HEADER |
| #undef IS_STACK_FRAMES |
| #undef IS_WITH_CONTEXT |
| #undef GET_STACK_TRACE_OR_FRAMES |
| |
| #define IS_STACK_FRAMES 1 |
| #define IS_WITH_CONTEXT 0 |
| #define GET_STACK_TRACE_OR_FRAMES \ |
| GetStackFrames(void **result, int *sizes, int max_depth, int skip_count) |
| #include STACKTRACE_INL_HEADER |
| #undef IS_STACK_FRAMES |
| #undef IS_WITH_CONTEXT |
| #undef GET_STACK_TRACE_OR_FRAMES |
| |
| #define IS_STACK_FRAMES 0 |
| #define IS_WITH_CONTEXT 1 |
| #define GET_STACK_TRACE_OR_FRAMES \ |
| GetStackTraceWithContext(void **result, int max_depth, \ |
| int skip_count, const void *ucp) |
| #include STACKTRACE_INL_HEADER |
| #undef IS_STACK_FRAMES |
| #undef IS_WITH_CONTEXT |
| #undef GET_STACK_TRACE_OR_FRAMES |
| |
| #define IS_STACK_FRAMES 1 |
| #define IS_WITH_CONTEXT 1 |
| #define GET_STACK_TRACE_OR_FRAMES \ |
| GetStackFramesWithContext(void **result, int *sizes, int max_depth, \ |
| int skip_count, const void *ucp) |
| #include STACKTRACE_INL_HEADER |
| #undef IS_STACK_FRAMES |
| #undef IS_WITH_CONTEXT |
| #undef GET_STACK_TRACE_OR_FRAMES |
| |
| #elif 0 |
| // This is for the benefit of code analysis tools that may have |
| // trouble with the computed #include above. |
| # include "stacktrace_x86-inl.h" |
| # include "stacktrace_libunwind-inl.h" |
| # include "stacktrace_generic-inl.h" |
| # include "stacktrace_powerpc-inl.h" |
| # include "stacktrace_win32-inl.h" |
| # include "stacktrace_arm-inl.h" |
| #else |
| # error Cannot calculate stack trace: will need to write for your environment |
| #endif |
