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author | mmentovai <mmentovai@4c0a9323-5329-0410-9bdc-e9ce6186880e> | 2006-09-06 19:28:46 +0000 |
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committer | mmentovai <mmentovai@4c0a9323-5329-0410-9bdc-e9ce6186880e> | 2006-09-06 19:28:46 +0000 |
commit | 213800d30c11612cb0457c94d7233813a22d83d5 (patch) | |
tree | a143c65491b29e712788c295ef9969828cebb4e0 /src/processor/minidump_stackwalk.cc | |
parent | Initial implementation of minidump reader (#6). r=bryner (diff) | |
download | breakpad-213800d30c11612cb0457c94d7233813a22d83d5.tar.xz |
Initial implementation of x86 stackwalker (#9). r=bryner
git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@12 4c0a9323-5329-0410-9bdc-e9ce6186880e
Diffstat (limited to 'src/processor/minidump_stackwalk.cc')
-rw-r--r-- | src/processor/minidump_stackwalk.cc | 118 |
1 files changed, 118 insertions, 0 deletions
diff --git a/src/processor/minidump_stackwalk.cc b/src/processor/minidump_stackwalk.cc new file mode 100644 index 00000000..71948a3b --- /dev/null +++ b/src/processor/minidump_stackwalk.cc @@ -0,0 +1,118 @@ +// Copyright (C) 2006 Google Inc. +// +// 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. + +// minidump_stackwalk.cc: Print the stack of the exception thread from a +// minidump. +// +// Author: Mark Mentovai + +#include <errno.h> +#include <fcntl.h> +#include <stdlib.h> +#include <stdio.h> +#include <string.h> +#ifndef _WIN32 +#include <unistd.h> +#define O_BINARY 0 +#else // !_WIN32 +#include <io.h> +#define open _open +#endif // !_WIN32 + +#include <memory> + +#include "processor/minidump.h" +#include "processor/stackwalker_x86.h" + + +using std::auto_ptr; +using namespace google_airbag; + + +int main(int argc, char** argv) { + if (argc != 2) { + fprintf(stderr, "usage: %s <file>\n", argv[0]); + exit(1); + } + + int fd = open(argv[1], O_RDONLY | O_BINARY); + if (fd == -1) { + fprintf(stderr, "open failed\n"); + exit(1); + } + + Minidump minidump(fd); + if (!minidump.Read()) { + fprintf(stderr, "minidump.Read() failed\n"); + exit(1); + } + + MinidumpException* exception = minidump.GetException(); + if (!exception) { + fprintf(stderr, "minidump.GetException() failed\n"); + exit(1); + } + + MinidumpThreadList* thread_list = minidump.GetThreadList(); + if (!thread_list) { + fprintf(stderr, "minidump.GetThreadList() failed\n"); + exit(1); + } + + MinidumpThread* exception_thread = + thread_list->GetThreadByID(exception->GetThreadID()); + if (!exception_thread) { + fprintf(stderr, "thread_list->GetThreadByID() failed\n"); + exit(1); + } + + MemoryRegion* stack_memory = exception_thread->GetMemory(); + if (!stack_memory) { + fprintf(stderr, "exception_thread->GetStackMemory() failed\n"); + exit(1); + } + + MinidumpContext* context = exception->GetContext(); + if (!context) { + fprintf(stderr, "exception->GetContext() failed\n"); + exit(1); + } + + MinidumpModuleList* modules = minidump.GetModuleList(); + if (!modules) { + fprintf(stderr, "minidump.GetModuleList() failed\n"); + exit(1); + } + + StackwalkerX86 stackwalker = StackwalkerX86(context, stack_memory, modules); + + auto_ptr<StackFrames> stack(stackwalker.Walk()); + if (!stack.get()) { + fprintf(stderr, "stackwalker->Walk() failed\n"); + exit(1); + } + + unsigned int index; + for (index = 0 ; index < stack->size() ; index++) { + StackFrame frame = stack->at(index); + printf("[%2d] ebp = 0x%08llx eip = 0x%08llx \"%s\" + 0x%08llx\n", + index, + frame.frame_pointer, + frame.instruction, + frame.module_base ? frame.module_name.c_str() : "0x0", + frame.instruction - frame.module_base); + } + + return 0; +} |