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-rw-r--r--security/sandbox/linux/glue/SandboxCrash.cpp131
-rw-r--r--security/sandbox/linux/glue/moz.build29
2 files changed, 0 insertions, 160 deletions
diff --git a/security/sandbox/linux/glue/SandboxCrash.cpp b/security/sandbox/linux/glue/SandboxCrash.cpp
deleted file mode 100644
index 8ead16bdf..000000000
--- a/security/sandbox/linux/glue/SandboxCrash.cpp
+++ /dev/null
@@ -1,131 +0,0 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
-/* This Source Code Form is subject to the terms of the Mozilla Public
- * License, v. 2.0. If a copy of the MPL was not distributed with this file,
- * You can obtain one at http://mozilla.org/MPL/2.0/. */
-
-// This file needs to be linked into libxul, so it can access the JS
-// stack and the crash reporter. Everything else in this directory
-// should be able to be linked into its own shared library, in order
-// to be able to isolate sandbox/chromium from ipc/chromium.
-
-#include "SandboxInternal.h"
-#include "SandboxLogging.h"
-
-#include <unistd.h>
-#include <sys/syscall.h>
-
-#include "mozilla/Unused.h"
-#include "mozilla/dom/Exceptions.h"
-#include "nsContentUtils.h"
-#include "mozilla/StackWalk.h"
-#include "nsString.h"
-#include "nsThreadUtils.h"
-
-namespace mozilla {
-
-// Log JS stack info in the same place as the sandbox violation
-// message. Useful in case the responsible code is JS and all we have
-// are logs and a minidump with the C++ stacks (e.g., on TBPL).
-static void
-SandboxLogJSStack(void)
-{
- if (!NS_IsMainThread()) {
- // This might be a worker thread... or it might be a non-JS
- // thread, or a non-NSPR thread. There's isn't a good API for
- // dealing with this, yet.
- return;
- }
- if (!nsContentUtils::XPConnect()) {
- // There is no content (e.g., the process is a media plugin), in
- // which case this will probably crash and definitely not work.
- return;
- }
- nsCOMPtr<nsIStackFrame> frame = dom::GetCurrentJSStack();
- // If we got a stack, we must have a current JSContext. This is icky. :(
- // Would be better if GetCurrentJSStack() handed out the JSContext it ended up
- // using or something.
- JSContext* cx = frame ? nsContentUtils::GetCurrentJSContext() : nullptr;
- for (int i = 0; frame != nullptr; ++i) {
- nsAutoString fileName, funName;
- int32_t lineNumber;
-
- // Don't stop unwinding if an attribute can't be read.
- fileName.SetIsVoid(true);
- Unused << frame->GetFilename(cx, fileName);
- lineNumber = 0;
- Unused << frame->GetLineNumber(cx, &lineNumber);
- funName.SetIsVoid(true);
- Unused << frame->GetName(cx, funName);
-
- if (!funName.IsVoid() || !fileName.IsVoid()) {
- SANDBOX_LOG_ERROR("JS frame %d: %s %s line %d", i,
- funName.IsVoid() ?
- "(anonymous)" : NS_ConvertUTF16toUTF8(funName).get(),
- fileName.IsVoid() ?
- "(no file)" : NS_ConvertUTF16toUTF8(fileName).get(),
- lineNumber);
- }
-
- nsCOMPtr<nsIStackFrame> nextFrame;
- nsresult rv = frame->GetCaller(cx, getter_AddRefs(nextFrame));
- NS_ENSURE_SUCCESS_VOID(rv);
- frame = nextFrame;
- }
-}
-
-static void SandboxPrintStackFrame(uint32_t aFrameNumber, void *aPC, void *aSP,
- void *aClosure)
-{
- char buf[1024];
- MozCodeAddressDetails details;
-
- MozDescribeCodeAddress(aPC, &details);
- MozFormatCodeAddressDetails(buf, sizeof(buf), aFrameNumber, aPC, &details);
- SANDBOX_LOG_ERROR("frame %s", buf);
-}
-
-static void
-SandboxLogCStack()
-{
- // Skip 3 frames: one for this module, one for the signal handler in
- // libmozsandbox, and one for the signal trampoline.
- //
- // Warning: this might not print any stack frames. MozStackWalk
- // can't walk past the signal trampoline on ARM (bug 968531), and
- // x86 frame pointer walking may or may not work (bug 1082276).
-
- MozStackWalk(SandboxPrintStackFrame, /* skip */ 3, /* max */ 0,
- nullptr, 0, nullptr);
- SANDBOX_LOG_ERROR("end of stack.");
-}
-
-static void
-SandboxCrash(int nr, siginfo_t *info, void *void_context)
-{
- pid_t pid = getpid(), tid = syscall(__NR_gettid);
- bool dumped = false;
-
- if (!dumped) {
- SANDBOX_LOG_ERROR("crash reporter is disabled (or failed);"
- " trying stack trace:");
- SandboxLogCStack();
- }
-
- // Do this last, in case it crashes or deadlocks.
- SandboxLogJSStack();
-
- // Try to reraise, so the parent sees that this process crashed.
- // (If tgkill is forbidden, then seccomp will raise SIGSYS, which
- // also accomplishes that goal.)
- signal(SIGSYS, SIG_DFL);
- syscall(__NR_tgkill, pid, tid, nr);
-}
-
-static void __attribute__((constructor))
-SandboxSetCrashFunc()
-{
- gSandboxCrashFunc = SandboxCrash;
-}
-
-} // namespace mozilla
diff --git a/security/sandbox/linux/glue/moz.build b/security/sandbox/linux/glue/moz.build
deleted file mode 100644
index 0d40dcd63..000000000
--- a/security/sandbox/linux/glue/moz.build
+++ /dev/null
@@ -1,29 +0,0 @@
-# -*- Mode: python; python-indent: 4; indent-tabs-mode: nil; tab-width: 40 -*-
-# vim: set filetype=python:
-# This Source Code Form is subject to the terms of the Mozilla Public
-# License, v. 2.0. If a copy of the MPL was not distributed with this
-# file, You can obtain one at http://mozilla.org/MPL/2.0/.
-
-SOURCES += [
- '../../chromium/base/strings/safe_sprintf.cc',
- '../SandboxLogging.cpp',
- 'SandboxCrash.cpp',
-]
-
-# Avoid Chromium logging dependency, because this is going into
-# libxul. See also the comment in SandboxLogging.h.
-SOURCES['../../chromium/base/strings/safe_sprintf.cc'].flags += ['-DNDEBUG']
-
-LOCAL_INCLUDES += [
- '/security/sandbox/chromium',
- '/security/sandbox/linux',
-]
-
-USE_LIBS += [
- 'mozsandbox',
-]
-
-FINAL_LIBRARY = 'xul'
-
-if CONFIG['GNU_CXX']:
- CXXFLAGS += ['-Wno-error=shadow']