From 5099964c673cd45e16d443a3b02f51bade303eee Mon Sep 17 00:00:00 2001 From: Andrew Date: Sat, 10 May 2014 14:16:27 -0500 Subject: Implement backtraces on Windows. Much !!FUN!! was had --- WinBacktrace.h | 44 ++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 44 insertions(+) create mode 100644 WinBacktrace.h (limited to 'WinBacktrace.h') diff --git a/WinBacktrace.h b/WinBacktrace.h new file mode 100644 index 00000000..d1e6301a --- /dev/null +++ b/WinBacktrace.h @@ -0,0 +1,44 @@ +/* Copyright 2014 MultiMC Contributors + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#pragma once + +#include + +#ifndef SF_STR_LEN +// The max length of all strings in the StackFrame struct. +// Because it must be stack allocated, this must be known at compile time. +// Stuff longer than this will be truncated. +// Defaults to 4096 (4kB) +#define SF_STR_LEN 4096 +#endif + +// Data structure for holding information about a stack frame. +// There's some more hackery in here so it can be allocated on the stack. +struct StackFrame +{ + // The address of this stack frame. + void* address; + + // The name of the function at this address. + char funcName[SF_STR_LEN]; +}; + +// This function walks through the given CONTEXT structure, extracting a +// backtrace from it. +// The backtrace will be put into the array given by the `stack` argument +// with a maximum length of `size`. +// This function returns the size of the backtrace retrieved. +size_t getBacktrace(StackFrame* stack, size_t size, CONTEXT ctx); -- cgit v1.2.3