diff options
author | primiano@chromium.org <primiano@chromium.org> | 2014-10-01 09:51:23 +0000 |
---|---|---|
committer | primiano@chromium.org <primiano@chromium.org> | 2014-10-01 09:51:23 +0000 |
commit | 9f150ee33e99b6c076f8047f1c33586e95ce9584 (patch) | |
tree | 944df97066057ea69ca3a7f00139816106d97595 /src/client/linux/dump_writer_common/ucontext_reader.h | |
parent | Fix some nits raised by Timur for r1385. (diff) | |
download | breakpad-9f150ee33e99b6c076f8047f1c33586e95ce9584.tar.xz |
Microdumps: refactor out common parts of minidump_writer.cc
This change is a pure refactoring of the common bits of minidump_writer.cc
that will be shared soon with the upcoming microdump_writer.cc.
In particular, this CL is extracting the following classes:
- ThreadInfo: handles the state of the threads in the crashing process.
- RawContextCPU: typedef for arch-specific CPU context structure.
- UContextReader: Fills out a dump RawContextCPU structure from the
ucontext struct provided by the kernel (arch-dependent).
- SeccompUnwinder: cleans out the stack frames of the Seccomp sandbox
on the supported architectures.
- MappingInfo: handles information about mappings
BUG=chromium:410294
R=mmandlis@chromium.org
Review URL: https://breakpad.appspot.com/4684002
git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@1388 4c0a9323-5329-0410-9bdc-e9ce6186880e
Diffstat (limited to 'src/client/linux/dump_writer_common/ucontext_reader.h')
-rw-r--r-- | src/client/linux/dump_writer_common/ucontext_reader.h | 64 |
1 files changed, 64 insertions, 0 deletions
diff --git a/src/client/linux/dump_writer_common/ucontext_reader.h b/src/client/linux/dump_writer_common/ucontext_reader.h new file mode 100644 index 00000000..b6e77b4b --- /dev/null +++ b/src/client/linux/dump_writer_common/ucontext_reader.h @@ -0,0 +1,64 @@ +// Copyright (c) 2014, 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. + +#ifndef CLIENT_LINUX_DUMP_WRITER_COMMON_UCONTEXT_READER_H +#define CLIENT_LINUX_DUMP_WRITER_COMMON_UCONTEXT_READER_H + +#include <sys/ucontext.h> +#include <sys/user.h> + +#include "client/linux/dump_writer_common/raw_context_cpu.h" +#include "common/memory.h" +#include "google_breakpad/common/minidump_format.h" + +namespace google_breakpad { + +// Wraps platform-dependent implementations of accessors to ucontext structs. +struct UContextReader { + static uintptr_t GetStackPointer(const struct ucontext* uc); + + static uintptr_t GetInstructionPointer(const struct ucontext* uc); + + // Juggle a arch-specific ucontext into a minidump format + // out: the minidump structure + // info: the collection of register structures. +#if defined(__i386__) || defined(__x86_64) + static void FillCPUContext(RawContextCPU *out, const ucontext *uc, + const struct _libc_fpstate* fp); +#elif defined(__aarch64__) + static void FillCPUContext(RawContextCPU *out, const ucontext *uc, + const struct fpsimd_context* fpregs); +#else + static void FillCPUContext(RawContextCPU *out, const ucontext *uc); +#endif +}; + +} // namespace google_breakpad + +#endif // CLIENT_LINUX_DUMP_WRITER_COMMON_UCONTEXT_READER_H |