diff options
Diffstat (limited to 'toolkit/crashreporter/google-breakpad/src/client/solaris/handler')
10 files changed, 0 insertions, 2201 deletions
diff --git a/toolkit/crashreporter/google-breakpad/src/client/solaris/handler/Makefile b/toolkit/crashreporter/google-breakpad/src/client/solaris/handler/Makefile deleted file mode 100644 index beeb9448f..000000000 --- a/toolkit/crashreporter/google-breakpad/src/client/solaris/handler/Makefile +++ /dev/null @@ -1,78 +0,0 @@ -# Copyright (c) 2007, 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: Alfred Peng - -CC=cc -CXX=CC - -CPPFLAGS=-g -I../../.. -DNDEBUG -features=extensions -D_REENTRANT -LDFLAGS=-lpthread -lssl -lgnutls-openssl -lelf - -OBJ_DIR=. -BIN_DIR=. - -THREAD_SRC=solaris_lwp.cc -SHARE_SRC=../../minidump_file_writer.cc\ - ../../../common/md5.cc\ - ../../../common/string_conversion.cc\ - ../../../common/solaris/file_id.cc\ - minidump_generator.cc -HANDLER_SRC=exception_handler.cc\ - ../../../common/solaris/guid_creator.cc -SHARE_C_SRC=../../../common/convert_UTF.c - -MINIDUMP_TEST_SRC=minidump_test.cc -EXCEPTION_TEST_SRC=exception_handler_test.cc - -THREAD_OBJ=$(patsubst %.cc,$(OBJ_DIR)/%.o,$(THREAD_SRC)) -SHARE_OBJ=$(patsubst %.cc,$(OBJ_DIR)/%.o,$(SHARE_SRC)) -HANDLER_OBJ=$(patsubst %.cc,$(OBJ_DIR)/%.o,$(HANDLER_SRC)) -SHARE_C_OBJ=$(patsubst %.c,$(OBJ_DIR)/%.o,$(SHARE_C_SRC)) -MINIDUMP_TEST_OBJ=$(patsubst %.cc,$(OBJ_DIR)/%.o, $(MINIDUMP_TEST_SRC))\ - $(THREAD_OBJ) $(SHARE_OBJ) $(SHARE_C_OBJ) $(HANDLER_OBJ) -EXCEPTION_TEST_OBJ=$(patsubst %.cc,$(OBJ_DIR)/%.o, $(EXCEPTION_TEST_SRC))\ - $(THREAD_OBJ) $(SHARE_OBJ) $(SHARE_C_OBJ) $(HANDLER_OBJ) - -BIN=$(BIN_DIR)/minidump_test\ - $(BIN_DIR)/exception_handler_test - -.PHONY:all clean - -all:$(BIN) - -$(BIN_DIR)/minidump_test:$(MINIDUMP_TEST_OBJ) - $(CXX) $(CPPFLAGS) $(LDFLAGS) $^ -o $@ - -$(BIN_DIR)/exception_handler_test:$(EXCEPTION_TEST_OBJ) - $(CXX) $(CPPFLAGS) $(LDFLAGS) $^ -o $@ - -clean: - rm -f $(BIN) *.o *.out *.dmp core ../../minidump_file_writer.o\ - ../../../common/*.o ../../../common/solaris/*.o diff --git a/toolkit/crashreporter/google-breakpad/src/client/solaris/handler/exception_handler.cc b/toolkit/crashreporter/google-breakpad/src/client/solaris/handler/exception_handler.cc deleted file mode 100644 index 7fc8d2557..000000000 --- a/toolkit/crashreporter/google-breakpad/src/client/solaris/handler/exception_handler.cc +++ /dev/null @@ -1,258 +0,0 @@ -// Copyright (c) 2007, 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: Alfred Peng - -#include <signal.h> -#include <sys/stat.h> -#include <sys/types.h> -#include <unistd.h> - -#include <cassert> -#include <cstdlib> -#include <ctime> - -#include "client/solaris/handler/exception_handler.h" -#include "common/solaris/guid_creator.h" -#include "common/solaris/message_output.h" -#include "google_breakpad/common/minidump_format.h" - -namespace google_breakpad { - -// Signals that we are interested. -static const int kSigTable[] = { - SIGSEGV, - SIGABRT, - SIGFPE, - SIGILL, - SIGBUS -}; - -std::vector<ExceptionHandler*> *ExceptionHandler::handler_stack_ = NULL; -int ExceptionHandler::handler_stack_index_ = 0; -pthread_mutex_t ExceptionHandler::handler_stack_mutex_ = - PTHREAD_MUTEX_INITIALIZER; - -ExceptionHandler::ExceptionHandler(const string &dump_path, - FilterCallback filter, - MinidumpCallback callback, - void *callback_context, - bool install_handler) - : filter_(filter), - callback_(callback), - callback_context_(callback_context), - dump_path_(), - installed_handler_(install_handler) { - set_dump_path(dump_path); - - if (install_handler) { - SetupHandler(); - } - - if (install_handler) { - pthread_mutex_lock(&handler_stack_mutex_); - - if (handler_stack_ == NULL) - handler_stack_ = new std::vector<ExceptionHandler *>; - handler_stack_->push_back(this); - pthread_mutex_unlock(&handler_stack_mutex_); - } -} - -ExceptionHandler::~ExceptionHandler() { - TeardownAllHandlers(); - pthread_mutex_lock(&handler_stack_mutex_); - if (handler_stack_->back() == this) { - handler_stack_->pop_back(); - } else { - print_message1(2, "warning: removing Breakpad handler out of order\n"); - for (std::vector<ExceptionHandler *>::iterator iterator = - handler_stack_->begin(); - iterator != handler_stack_->end(); - ++iterator) { - if (*iterator == this) { - handler_stack_->erase(iterator); - } - } - } - - if (handler_stack_->empty()) { - // When destroying the last ExceptionHandler that installed a handler, - // clean up the handler stack. - delete handler_stack_; - handler_stack_ = NULL; - } - pthread_mutex_unlock(&handler_stack_mutex_); -} - -bool ExceptionHandler::WriteMinidump() { - return InternalWriteMinidump(0, 0, NULL); -} - -// static -bool ExceptionHandler::WriteMinidump(const string &dump_path, - MinidumpCallback callback, - void *callback_context) { - ExceptionHandler handler(dump_path, NULL, callback, - callback_context, false); - return handler.InternalWriteMinidump(0, 0, NULL); -} - -void ExceptionHandler::SetupHandler() { - // Signal on a different stack to avoid using the stack - // of the crashing lwp. - struct sigaltstack sig_stack; - sig_stack.ss_sp = malloc(MINSIGSTKSZ); - if (sig_stack.ss_sp == NULL) - return; - sig_stack.ss_size = MINSIGSTKSZ; - sig_stack.ss_flags = 0; - - if (sigaltstack(&sig_stack, NULL) < 0) - return; - for (size_t i = 0; i < sizeof(kSigTable) / sizeof(kSigTable[0]); ++i) - SetupHandler(kSigTable[i]); -} - -void ExceptionHandler::SetupHandler(int signo) { - struct sigaction act, old_act; - act.sa_handler = HandleException; - act.sa_flags = SA_ONSTACK; - if (sigaction(signo, &act, &old_act) < 0) - return; - old_handlers_[signo] = old_act.sa_handler; -} - -void ExceptionHandler::TeardownHandler(int signo) { - if (old_handlers_.find(signo) != old_handlers_.end()) { - struct sigaction act; - act.sa_handler = old_handlers_[signo]; - act.sa_flags = 0; - sigaction(signo, &act, 0); - } -} - -void ExceptionHandler::TeardownAllHandlers() { - for (size_t i = 0; i < sizeof(kSigTable) / sizeof(kSigTable[0]); ++i) { - TeardownHandler(kSigTable[i]); - } -} - -// static -void ExceptionHandler::HandleException(int signo) { -//void ExceptionHandler::HandleException(int signo, siginfo_t *sip, ucontext_t *sig_ctx) { - // The context information about the signal is put on the stack of - // the signal handler frame as value parameter. For some reasons, the - // prototype of the handler doesn't declare this information as parameter, we - // will do it by hand. The stack layout for a signal handler frame is here: - // http://src.opensolaris.org/source/xref/onnv/onnv-gate/usr/src/lib/libproc/common/Pstack.c#81 - // - // However, if we are being called by another signal handler passing the - // signal up the chain, then we may not have this random extra parameter, - // so we may have to walk the stack to find it. We do the actual work - // on another thread, where it's a little safer, but we want the ebp - // from this frame to find it. - uintptr_t current_ebp = (uintptr_t)_getfp(); - - pthread_mutex_lock(&handler_stack_mutex_); - ExceptionHandler *current_handler = - handler_stack_->at(handler_stack_->size() - ++handler_stack_index_); - pthread_mutex_unlock(&handler_stack_mutex_); - - // Restore original handler. - current_handler->TeardownHandler(signo); - - ucontext_t *sig_ctx = NULL; - if (current_handler->InternalWriteMinidump(signo, current_ebp, &sig_ctx)) { -// if (current_handler->InternalWriteMinidump(signo, &sig_ctx)) { - // Fully handled this exception, safe to exit. - exit(EXIT_FAILURE); - } else { - // Exception not fully handled, will call the next handler in stack to - // process it. - typedef void (*SignalHandler)(int signo); - SignalHandler old_handler = - reinterpret_cast<SignalHandler>(current_handler->old_handlers_[signo]); - if (old_handler != NULL) - old_handler(signo); - } - - pthread_mutex_lock(&handler_stack_mutex_); - current_handler->SetupHandler(signo); - --handler_stack_index_; - // All the handlers in stack have been invoked to handle the exception, - // normally the process should be terminated and should not reach here. - // In case we got here, ask the OS to handle it to avoid endless loop, - // normally the OS will generate a core and termiate the process. This - // may be desired to debug the program. - if (handler_stack_index_ == 0) - signal(signo, SIG_DFL); - pthread_mutex_unlock(&handler_stack_mutex_); -} - -bool ExceptionHandler::InternalWriteMinidump(int signo, - uintptr_t sighandler_ebp, - ucontext_t **sig_ctx) { - if (filter_ && !filter_(callback_context_)) - return false; - - bool success = false; - GUID guid; - char guid_str[kGUIDStringLength + 1]; - if (CreateGUID(&guid) && GUIDToString(&guid, guid_str, sizeof(guid_str))) { - char minidump_path[PATH_MAX]; - snprintf(minidump_path, sizeof(minidump_path), "%s/%s.dmp", - dump_path_c_, guid_str); - - // Block all the signals we want to process when writing minidump. - // We don't want it to be interrupted. - sigset_t sig_blocked, sig_old; - bool blocked = true; - sigfillset(&sig_blocked); - for (size_t i = 0; i < sizeof(kSigTable) / sizeof(kSigTable[0]); ++i) - sigdelset(&sig_blocked, kSigTable[i]); - if (sigprocmask(SIG_BLOCK, &sig_blocked, &sig_old) != 0) { - blocked = false; - print_message1(2, "HandleException: failed to block signals.\n"); - } - - success = minidump_generator_.WriteMinidumpToFile( - minidump_path, signo, sighandler_ebp, sig_ctx); - - // Unblock the signals. - if (blocked) - sigprocmask(SIG_SETMASK, &sig_old, &sig_old); - - if (callback_) - success = callback_(dump_path_c_, guid_str, callback_context_, success); - } - return success; -} - -} // namespace google_breakpad diff --git a/toolkit/crashreporter/google-breakpad/src/client/solaris/handler/exception_handler.h b/toolkit/crashreporter/google-breakpad/src/client/solaris/handler/exception_handler.h deleted file mode 100644 index 4d72485fe..000000000 --- a/toolkit/crashreporter/google-breakpad/src/client/solaris/handler/exception_handler.h +++ /dev/null @@ -1,201 +0,0 @@ -// Copyright (c) 2007, 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: Alfred Peng - -#ifndef CLIENT_SOLARIS_HANDLER_EXCEPTION_HANDLER_H__ -#define CLIENT_SOLARIS_HANDLER_EXCEPTION_HANDLER_H__ - -#include <map> -#include <string> -#include <vector> - -#include "client/solaris/handler/minidump_generator.h" - -namespace google_breakpad { - -using std::string; - -// -// ExceptionHandler -// -// ExceptionHandler can write a minidump file when an exception occurs, -// or when WriteMinidump() is called explicitly by your program. -// -// To have the exception handler write minidumps when an uncaught exception -// (crash) occurs, you should create an instance early in the execution -// of your program, and keep it around for the entire time you want to -// have crash handling active (typically, until shutdown). -// (NOTE): There should be only one this kind of exception handler -// object per process. -// -// If you want to write minidumps without installing the exception handler, -// you can create an ExceptionHandler with install_handler set to false, -// then call WriteMinidump. You can also use this technique if you want to -// use different minidump callbacks for different call sites. -// -// In either case, a callback function is called when a minidump is written, -// which receives the unqiue id of the minidump. The caller can use this -// id to collect and write additional application state, and to launch an -// external crash-reporting application. -// -// Caller should try to make the callbacks as crash-friendly as possible, -// it should avoid use heap memory allocation as much as possible. -// -class ExceptionHandler { - public: - // A callback function to run before Breakpad performs any substantial - // processing of an exception. A FilterCallback is called before writing - // a minidump. context is the parameter supplied by the user as - // callback_context when the handler was created. - // - // If a FilterCallback returns true, Breakpad will continue processing, - // attempting to write a minidump. If a FilterCallback returns false, - // Breakpad will immediately report the exception as unhandled without - // writing a minidump, allowing another handler the opportunity to handle it. - typedef bool (*FilterCallback)(void *context); - - // A callback function to run after the minidump has been written. - // minidump_id is a unique id for the dump, so the minidump - // file is <dump_path>/<minidump_id>.dmp. context is the parameter supplied - // by the user as callback_context when the handler was created. succeeded - // indicates whether a minidump file was successfully written. - // - // If an exception occurred and the callback returns true, Breakpad will - // treat the exception as fully-handled, suppressing any other handlers from - // being notified of the exception. If the callback returns false, Breakpad - // will treat the exception as unhandled, and allow another handler to handle - // it. If there are no other handlers, Breakpad will report the exception to - // the system as unhandled, allowing a debugger or native crash dialog the - // opportunity to handle the exception. Most callback implementations - // should normally return the value of |succeeded|, or when they wish to - // not report an exception of handled, false. Callbacks will rarely want to - // return true directly (unless |succeeded| is true). - typedef bool (*MinidumpCallback)(const char *dump_path, - const char *minidump_id, - void *context, - bool succeeded); - - // Creates a new ExceptionHandler instance to handle writing minidumps. - // Before writing a minidump, the optional filter callback will be called. - // Its return value determines whether or not Breakpad should write a - // minidump. Minidump files will be written to dump_path, and the optional - // callback is called after writing the dump file, as described above. - // If install_handler is true, then a minidump will be written whenever - // an unhandled exception occurs. If it is false, minidumps will only - // be written when WriteMinidump is called. - ExceptionHandler(const string &dump_path, - FilterCallback filter, MinidumpCallback callback, - void *callback_context, - bool install_handler); - ~ExceptionHandler(); - - // Get and Set the minidump path. - string dump_path() const { return dump_path_; } - void set_dump_path(const string &dump_path) { - dump_path_ = dump_path; - dump_path_c_ = dump_path_.c_str(); - } - - // Writes a minidump immediately. This can be used to capture the - // execution state independently of a crash. Returns true on success. - bool WriteMinidump(); - - // Convenience form of WriteMinidump which does not require an - // ExceptionHandler instance. - static bool WriteMinidump(const string &dump_path, - MinidumpCallback callback, - void *callback_context); - - private: - // Setup crash handler. - void SetupHandler(); - // Setup signal handler for a signal. - void SetupHandler(int signo); - // Teardown the handler for a signal. - void TeardownHandler(int signo); - // Teardown all handlers. - void TeardownAllHandlers(); - - // Runs the main loop for the exception handler thread. - static void* ExceptionHandlerThreadMain(void *lpParameter); - - // Signal handler. - static void HandleException(int signo); - - // Write all the information to the dump file. - // If called from a signal handler, sighandler_ebp is the ebp of - // that signal handler's frame, and sig_ctx is an out parameter - // that will be set to point at the ucontext_t that was placed - // on the stack by the kernel. You can pass zero and NULL - // for the second and third parameters if you are not calling - // this from a signal handler. - bool InternalWriteMinidump(int signo, uintptr_t sighandler_ebp, - ucontext_t **sig_ctx); - - private: - // The callbacks before and after writing the dump file. - FilterCallback filter_; - MinidumpCallback callback_; - void *callback_context_; - - // The directory in which a minidump will be written, set by the dump_path - // argument to the constructor, or set_dump_path. - string dump_path_; - // C style dump path. Keep this when setting dump path, since calling - // c_str() of std::string when crashing may not be safe. - const char *dump_path_c_; - - // True if the ExceptionHandler installed an unhandled exception filter - // when created (with an install_handler parameter set to true). - bool installed_handler_; - - // Keep the previous handlers for the signal. - typedef void (*sighandler_t)(int); - std::map<int, sighandler_t> old_handlers_; - - // The global exception handler stack. This is need becuase there may exist - // multiple ExceptionHandler instances in a process. Each will have itself - // registered in this stack. - static std::vector<ExceptionHandler *> *handler_stack_; - // The index of the handler that should handle the next exception. - static int handler_stack_index_; - static pthread_mutex_t handler_stack_mutex_; - - // The minidump generator. - MinidumpGenerator minidump_generator_; - - // disallow copy ctor and operator= - explicit ExceptionHandler(const ExceptionHandler &); - void operator=(const ExceptionHandler &); -}; - -} // namespace google_breakpad - -#endif // CLIENT_SOLARIS_HANDLER_EXCEPTION_HANDLER_H__ diff --git a/toolkit/crashreporter/google-breakpad/src/client/solaris/handler/exception_handler_test.cc b/toolkit/crashreporter/google-breakpad/src/client/solaris/handler/exception_handler_test.cc deleted file mode 100644 index 6bb8e18d9..000000000 --- a/toolkit/crashreporter/google-breakpad/src/client/solaris/handler/exception_handler_test.cc +++ /dev/null @@ -1,119 +0,0 @@ -// Copyright (c) 2007, 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: Alfred Peng - -#include <pthread.h> -#include <unistd.h> - -#include <cassert> -#include <cstdio> -#include <cstdlib> -#include <cstring> - -#include "client/solaris/handler/exception_handler.h" -#include "client/solaris/handler/solaris_lwp.h" - -using namespace google_breakpad; - -// Thread use this to see if it should stop working. -static bool should_exit = false; - -static int foo2(int arg) { - // Stack variable, used for debugging stack dumps. - int c = 0xcccccccc; - fprintf(stderr, "Thread trying to crash: %x\n", getpid()); - c = *reinterpret_cast<int *>(0x5); - return c; -} - -static int foo(int arg) { - // Stack variable, used for debugging stack dumps. - int b = 0xbbbbbbbb; - b = foo2(b); - return b; -} - -static void *thread_crash(void *) { - // Stack variable, used for debugging stack dumps. - int a = 0xaaaaaaaa; - sleep(3); - a = foo(a); - printf("%x\n", a); - return NULL; -} - -static void *thread_main(void *) { - while (!should_exit) - sleep(1); - return NULL; -} - -static void CreateCrashThread() { - pthread_t h; - pthread_create(&h, NULL, thread_crash, NULL); - pthread_detach(h); -} - -// Create working threads. -static void CreateThread(int num) { - pthread_t h; - for (int i = 0; i < num; ++i) { - pthread_create(&h, NULL, thread_main, NULL); - pthread_detach(h); - } -} - -// Callback when minidump written. -static bool MinidumpCallback(const char *dump_path, - const char *minidump_id, - void *context, - bool succeeded) { - int index = reinterpret_cast<int>(context); - if (index == 0) { - should_exit = true; - return true; - } - // Don't process it. - return false; -} - -int main(int argc, char *argv[]) { - int handler_index = 1; - ExceptionHandler handler_ignore(".", NULL, MinidumpCallback, - (void*)handler_index, true); - CreateCrashThread(); - CreateThread(10); - - while (true) - sleep(20); - should_exit = true; - - return 0; -} diff --git a/toolkit/crashreporter/google-breakpad/src/client/solaris/handler/minidump_generator.cc b/toolkit/crashreporter/google-breakpad/src/client/solaris/handler/minidump_generator.cc deleted file mode 100644 index 7485025fe..000000000 --- a/toolkit/crashreporter/google-breakpad/src/client/solaris/handler/minidump_generator.cc +++ /dev/null @@ -1,786 +0,0 @@ -// Copyright (c) 2007, 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: Alfred Peng - -#include <fcntl.h> -#include <sys/frame.h> -#include <sys/stat.h> -#include <sys/types.h> -#include <sys/utsname.h> -#include <sys/wait.h> -#include <unistd.h> - -#include <cstdlib> -#include <ctime> - -#include "client/solaris/handler/minidump_generator.h" -#include "client/minidump_file_writer-inl.h" -#include "common/solaris/file_id.h" - -namespace { - -using namespace google_breakpad; - -// Argument for the writer function. -struct WriterArgument { - MinidumpFileWriter *minidump_writer; - - // Pid of the lwp who called WriteMinidumpToFile - int requester_pid; - - // The stack bottom of the lwp which caused the dump. - // Mainly used to find the lwp id of the crashed lwp since signal - // handler may not be called in the lwp who caused it. - uintptr_t crashed_stack_bottom; - - // Id of the crashing lwp. - int crashed_lwpid; - - // Signal number when crash happened. Can be 0 if this is a requested dump. - int signo; - - // The ebp of the signal handler frame on x86. Can be 0 if this is a - // requested dump. - uintptr_t sighandler_ebp; - - // User context when crash happens. Can be NULL if this is a requested dump. - // This is actually an out parameter, but it will be filled in at the start - // of the writer LWP. - ucontext_t *sig_ctx; - - // Used to get information about the lwps. - SolarisLwp *lwp_lister; -}; - -// Holding context information for the callback of finding the crashing lwp. -struct FindCrashLwpContext { - const SolarisLwp *lwp_lister; - uintptr_t crashing_stack_bottom; - int crashing_lwpid; - - FindCrashLwpContext() : - lwp_lister(NULL), - crashing_stack_bottom(0UL), - crashing_lwpid(-1) { - } -}; - -// Callback for list lwps. -// It will compare the stack bottom of the provided lwp with the stack -// bottom of the crashed lwp, it they are eqaul, this lwp is the one -// who crashed. -bool IsLwpCrashedCallback(lwpstatus_t *lsp, void *context) { - FindCrashLwpContext *crashing_context = - static_cast<FindCrashLwpContext *>(context); - const SolarisLwp *lwp_lister = crashing_context->lwp_lister; - const prgregset_t *gregs = &(lsp->pr_reg); -#if TARGET_CPU_SPARC - uintptr_t last_ebp = (*gregs)[R_FP]; -#elif TARGET_CPU_X86 - uintptr_t last_ebp = (*gregs)[EBP]; -#endif - uintptr_t stack_bottom = lwp_lister->GetLwpStackBottom(last_ebp); - if (stack_bottom > last_ebp && - stack_bottom == crashing_context->crashing_stack_bottom) { - // Got it. Stop iteration. - crashing_context->crashing_lwpid = lsp->pr_lwpid; - return false; - } - - return true; -} - -// Find the crashing lwpid. -// This is done based on stack bottom comparing. -int FindCrashingLwp(uintptr_t crashing_stack_bottom, - int requester_pid, - const SolarisLwp *lwp_lister) { - FindCrashLwpContext context; - context.lwp_lister = lwp_lister; - context.crashing_stack_bottom = crashing_stack_bottom; - CallbackParam<LwpCallback> callback_param(IsLwpCrashedCallback, - &context); - lwp_lister->Lwp_iter_all(lwp_lister->getpid(), &callback_param); - return context.crashing_lwpid; -} - -bool WriteLwpStack(const SolarisLwp *lwp_lister, - uintptr_t last_esp, - UntypedMDRVA *memory, - MDMemoryDescriptor *loc) { - uintptr_t stack_bottom = lwp_lister->GetLwpStackBottom(last_esp); - if (stack_bottom >= last_esp) { - int size = stack_bottom - last_esp; - if (size > 0) { - if (!memory->Allocate(size)) - return false; - memory->Copy(reinterpret_cast<void *>(last_esp), size); - loc->start_of_memory_range = last_esp; - loc->memory = memory->location(); - } - return true; - } - return false; -} - -#if TARGET_CPU_SPARC -bool WriteContext(MDRawContextSPARC *context, ucontext_t *sig_ctx) { - assert(sig_ctx != NULL); - int* regs = sig_ctx->uc_mcontext.gregs; - context->context_flags = MD_CONTEXT_SPARC_FULL; - - context->ccr = (unsigned int)(regs[0]); - context->pc = (unsigned int)(regs[REG_PC]); - context->npc = (unsigned int)(regs[REG_nPC]); - context->y = (unsigned int)(regs[REG_Y]); - context->asi = (unsigned int)(regs[19]); - context->fprs = (unsigned int)(regs[20]); - - for ( int i = 0 ; i < 32; ++i ) { - context->g_r[i] = 0; - } - - for ( int i = 1 ; i < 16; ++i ) { - context->g_r[i] = (uintptr_t)(sig_ctx->uc_mcontext.gregs[i + 3]); - } - context->g_r[30] = (uintptr_t)(((struct frame *)context->g_r[14])->fr_savfp); - - return true; -} - -bool WriteContext(MDRawContextSPARC *context, prgregset_t regs, - prfpregset_t *fp_regs) { - if (!context || !regs) - return false; - - context->context_flags = MD_CONTEXT_SPARC_FULL; - - context->ccr = (uintptr_t)(regs[32]); - context->pc = (uintptr_t)(regs[R_PC]); - context->npc = (uintptr_t)(regs[R_nPC]); - context->y = (uintptr_t)(regs[R_Y]); - context->asi = (uintptr_t)(regs[36]); - context->fprs = (uintptr_t)(regs[37]); - for ( int i = 0 ; i < 32 ; ++i ){ - context->g_r[i] = (uintptr_t)(regs[i]); - } - - return true; -} -#elif TARGET_CPU_X86 -bool WriteContext(MDRawContextX86 *context, prgregset_t regs, - prfpregset_t *fp_regs) { - if (!context || !regs) - return false; - - context->context_flags = MD_CONTEXT_X86_FULL; - - context->cs = regs[CS]; - context->ds = regs[DS]; - context->es = regs[ES]; - context->fs = regs[FS]; - context->gs = regs[GS]; - context->ss = regs[SS]; - context->edi = regs[EDI]; - context->esi = regs[ESI]; - context->ebx = regs[EBX]; - context->edx = regs[EDX]; - context->ecx = regs[ECX]; - context->eax = regs[EAX]; - context->ebp = regs[EBP]; - context->eip = regs[EIP]; - context->esp = regs[UESP]; - context->eflags = regs[EFL]; - - return true; -} -#endif /* TARGET_CPU_XXX */ - -// Write information about a crashed Lwp. -// When a lwp crash, kernel will write something on the stack for processing -// signal. This makes the current stack not reliable, and our stack walker -// won't figure out the whole call stack for this. So we write the stack at the -// time of the crash into the minidump file, not the current stack. -bool WriteCrashedLwpStream(MinidumpFileWriter *minidump_writer, - const WriterArgument *writer_args, - const lwpstatus_t *lsp, - MDRawThread *lwp) { - assert(writer_args->sig_ctx != NULL); - - lwp->thread_id = lsp->pr_lwpid; - -#if TARGET_CPU_SPARC - UntypedMDRVA memory(minidump_writer); - if (!WriteLwpStack(writer_args->lwp_lister, - writer_args->sig_ctx->uc_mcontext.gregs[REG_O6], - &memory, - &lwp->stack)) - return false; - - TypedMDRVA<MDRawContextSPARC> context(minidump_writer); - if (!context.Allocate()) - return false; - lwp->thread_context = context.location(); - memset(context.get(), 0, sizeof(MDRawContextSPARC)); - return WriteContext(context.get(), writer_args->sig_ctx); -#elif TARGET_CPU_X86 - UntypedMDRVA memory(minidump_writer); - if (!WriteLwpStack(writer_args->lwp_lister, - writer_args->sig_ctx->uc_mcontext.gregs[UESP], - &memory, - &lwp->stack)) - return false; - - TypedMDRVA<MDRawContextX86> context(minidump_writer); - if (!context.Allocate()) - return false; - lwp->thread_context = context.location(); - memset(context.get(), 0, sizeof(MDRawContextX86)); - return WriteContext(context.get(), - (int *)&writer_args->sig_ctx->uc_mcontext.gregs, - &writer_args->sig_ctx->uc_mcontext.fpregs); -#endif -} - -bool WriteLwpStream(MinidumpFileWriter *minidump_writer, - const SolarisLwp *lwp_lister, - const lwpstatus_t *lsp, MDRawThread *lwp) { - prfpregset_t fp_regs = lsp->pr_fpreg; - const prgregset_t *gregs = &(lsp->pr_reg); - UntypedMDRVA memory(minidump_writer); -#if TARGET_CPU_SPARC - if (!WriteLwpStack(lwp_lister, - (*gregs)[R_SP], - &memory, - &lwp->stack)) - return false; - - // Write context - TypedMDRVA<MDRawContextSPARC> context(minidump_writer); - if (!context.Allocate()) - return false; - // should be the thread_id - lwp->thread_id = lsp->pr_lwpid; - lwp->thread_context = context.location(); - memset(context.get(), 0, sizeof(MDRawContextSPARC)); -#elif TARGET_CPU_X86 - if (!WriteLwpStack(lwp_lister, - (*gregs)[UESP], - &memory, - &lwp->stack)) - return false; - - // Write context - TypedMDRVA<MDRawContextX86> context(minidump_writer); - if (!context.Allocate()) - return false; - // should be the thread_id - lwp->thread_id = lsp->pr_lwpid; - lwp->thread_context = context.location(); - memset(context.get(), 0, sizeof(MDRawContextX86)); -#endif /* TARGET_CPU_XXX */ - return WriteContext(context.get(), (int *)gregs, &fp_regs); -} - -bool WriteCPUInformation(MDRawSystemInfo *sys_info) { - struct utsname uts; - char *major, *minor, *build; - - sys_info->number_of_processors = sysconf(_SC_NPROCESSORS_CONF); - sys_info->processor_architecture = MD_CPU_ARCHITECTURE_UNKNOWN; - if (uname(&uts) != -1) { - // Match "i86pc" as X86 architecture. - if (strcmp(uts.machine, "i86pc") == 0) - sys_info->processor_architecture = MD_CPU_ARCHITECTURE_X86; - else if (strcmp(uts.machine, "sun4u") == 0) - sys_info->processor_architecture = MD_CPU_ARCHITECTURE_SPARC; - } - - major = uts.release; - minor = strchr(major, '.'); - *minor = '\0'; - ++minor; - sys_info->major_version = atoi(major); - sys_info->minor_version = atoi(minor); - - build = strchr(uts.version, '_'); - ++build; - sys_info->build_number = atoi(build); - - return true; -} - -bool WriteOSInformation(MinidumpFileWriter *minidump_writer, - MDRawSystemInfo *sys_info) { - sys_info->platform_id = MD_OS_SOLARIS; - - struct utsname uts; - if (uname(&uts) != -1) { - char os_version[512]; - size_t space_left = sizeof(os_version); - memset(os_version, 0, space_left); - const char *os_info_table[] = { - uts.sysname, - uts.release, - uts.version, - uts.machine, - "OpenSolaris", - NULL - }; - for (const char **cur_os_info = os_info_table; - *cur_os_info != NULL; - ++cur_os_info) { - if (cur_os_info != os_info_table && space_left > 1) { - strcat(os_version, " "); - --space_left; - } - if (space_left > strlen(*cur_os_info)) { - strcat(os_version, *cur_os_info); - space_left -= strlen(*cur_os_info); - } else { - break; - } - } - - MDLocationDescriptor location; - if (!minidump_writer->WriteString(os_version, 0, &location)) - return false; - sys_info->csd_version_rva = location.rva; - } - return true; -} - -// Callback context for get writting lwp information. -struct LwpInfoCallbackCtx { - MinidumpFileWriter *minidump_writer; - const WriterArgument *writer_args; - TypedMDRVA<MDRawThreadList> *list; - int lwp_index; -}; - -bool LwpInformationCallback(lwpstatus_t *lsp, void *context) { - bool success = true; - LwpInfoCallbackCtx *callback_context = - static_cast<LwpInfoCallbackCtx *>(context); - - // The current lwp is the one to handle the crash. Ignore it. - if (lsp->pr_lwpid != pthread_self()) { - LwpInfoCallbackCtx *callback_context = - static_cast<LwpInfoCallbackCtx *>(context); - MDRawThread lwp; - memset(&lwp, 0, sizeof(MDRawThread)); - - if (lsp->pr_lwpid != callback_context->writer_args->crashed_lwpid || - callback_context->writer_args->sig_ctx == NULL) { - success = WriteLwpStream(callback_context->minidump_writer, - callback_context->writer_args->lwp_lister, - lsp, &lwp); - } else { - success = WriteCrashedLwpStream(callback_context->minidump_writer, - callback_context->writer_args, - lsp, &lwp); - } - if (success) { - callback_context->list->CopyIndexAfterObject( - callback_context->lwp_index++, - &lwp, sizeof(MDRawThread)); - } - } - - return success; -} - -bool WriteLwpListStream(MinidumpFileWriter *minidump_writer, - const WriterArgument *writer_args, - MDRawDirectory *dir) { - // Get the lwp information. - const SolarisLwp *lwp_lister = writer_args->lwp_lister; - int lwp_count = lwp_lister->GetLwpCount(); - if (lwp_count < 0) - return false; - TypedMDRVA<MDRawThreadList> list(minidump_writer); - if (!list.AllocateObjectAndArray(lwp_count - 1, sizeof(MDRawThread))) - return false; - dir->stream_type = MD_THREAD_LIST_STREAM; - dir->location = list.location(); - list.get()->number_of_threads = lwp_count - 1; - - LwpInfoCallbackCtx context; - context.minidump_writer = minidump_writer; - context.writer_args = writer_args; - context.list = &list; - context.lwp_index = 0; - CallbackParam<LwpCallback> callback_param(LwpInformationCallback, - &context); - int written = - lwp_lister->Lwp_iter_all(lwp_lister->getpid(), &callback_param); - return written == lwp_count; -} - -bool WriteCVRecord(MinidumpFileWriter *minidump_writer, - MDRawModule *module, - const char *module_path, - char *realname) { - TypedMDRVA<MDCVInfoPDB70> cv(minidump_writer); - - char path[PATH_MAX]; - const char *module_name = module_path ? module_path : "<Unknown>"; - snprintf(path, sizeof(path), "/proc/self/object/%s", module_name); - - size_t module_name_length = strlen(realname); - if (!cv.AllocateObjectAndArray(module_name_length + 1, sizeof(uint8_t))) - return false; - if (!cv.CopyIndexAfterObject(0, realname, module_name_length)) - return false; - - module->cv_record = cv.location(); - MDCVInfoPDB70 *cv_ptr = cv.get(); - memset(cv_ptr, 0, sizeof(MDCVInfoPDB70)); - cv_ptr->cv_signature = MD_CVINFOPDB70_SIGNATURE; - cv_ptr->age = 0; - - // Get the module identifier - FileID file_id(path); - unsigned char identifier[16]; - - if (file_id.ElfFileIdentifier(identifier)) { - cv_ptr->signature.data1 = (uint32_t)identifier[0] << 24 | - (uint32_t)identifier[1] << 16 | (uint32_t)identifier[2] << 8 | - (uint32_t)identifier[3]; - cv_ptr->signature.data2 = (uint32_t)identifier[4] << 8 | identifier[5]; - cv_ptr->signature.data3 = (uint32_t)identifier[6] << 8 | identifier[7]; - cv_ptr->signature.data4[0] = identifier[8]; - cv_ptr->signature.data4[1] = identifier[9]; - cv_ptr->signature.data4[2] = identifier[10]; - cv_ptr->signature.data4[3] = identifier[11]; - cv_ptr->signature.data4[4] = identifier[12]; - cv_ptr->signature.data4[5] = identifier[13]; - cv_ptr->signature.data4[6] = identifier[14]; - cv_ptr->signature.data4[7] = identifier[15]; - } - return true; -} - -struct ModuleInfoCallbackCtx { - MinidumpFileWriter *minidump_writer; - const WriterArgument *writer_args; - TypedMDRVA<MDRawModuleList> *list; - int module_index; -}; - -bool ModuleInfoCallback(const ModuleInfo &module_info, void *context) { - ModuleInfoCallbackCtx *callback_context = - static_cast<ModuleInfoCallbackCtx *>(context); - // Skip those modules without name, or those that are not modules. - if (strlen(module_info.name) == 0) - return true; - - MDRawModule module; - memset(&module, 0, sizeof(module)); - MDLocationDescriptor loc; - char path[PATH_MAX]; - char buf[PATH_MAX]; - char *realname; - int count; - - snprintf(path, sizeof (path), "/proc/self/path/%s", module_info.name); - if ((count = readlink(path, buf, PATH_MAX)) < 0) - return false; - buf[count] = '\0'; - - if ((realname = strrchr(buf, '/')) == NULL) - return false; - realname++; - - if (!callback_context->minidump_writer->WriteString(realname, 0, &loc)) - return false; - - module.base_of_image = (uint64_t)module_info.start_addr; - module.size_of_image = module_info.size; - module.module_name_rva = loc.rva; - - if (!WriteCVRecord(callback_context->minidump_writer, &module, - module_info.name, realname)) - return false; - - callback_context->list->CopyIndexAfterObject( - callback_context->module_index++, &module, MD_MODULE_SIZE); - return true; -} - -bool WriteModuleListStream(MinidumpFileWriter *minidump_writer, - const WriterArgument *writer_args, - MDRawDirectory *dir) { - TypedMDRVA<MDRawModuleList> list(minidump_writer); - int module_count = writer_args->lwp_lister->GetModuleCount(); - - if (module_count <= 0 || - !list.AllocateObjectAndArray(module_count, MD_MODULE_SIZE)) { - return false; - } - - dir->stream_type = MD_MODULE_LIST_STREAM; - dir->location = list.location(); - list.get()->number_of_modules = module_count; - ModuleInfoCallbackCtx context; - context.minidump_writer = minidump_writer; - context.writer_args = writer_args; - context.list = &list; - context.module_index = 0; - CallbackParam<ModuleCallback> callback(ModuleInfoCallback, &context); - return writer_args->lwp_lister->ListModules(&callback) == module_count; -} - -bool WriteSystemInfoStream(MinidumpFileWriter *minidump_writer, - const WriterArgument *writer_args, - MDRawDirectory *dir) { - TypedMDRVA<MDRawSystemInfo> sys_info(minidump_writer); - - if (!sys_info.Allocate()) - return false; - - dir->stream_type = MD_SYSTEM_INFO_STREAM; - dir->location = sys_info.location(); - - return WriteCPUInformation(sys_info.get()) && - WriteOSInformation(minidump_writer, sys_info.get()); -} - -bool WriteExceptionStream(MinidumpFileWriter *minidump_writer, - const WriterArgument *writer_args, - MDRawDirectory *dir) { - // This happenes when this is not a crash, but a requested dump. - if (writer_args->sig_ctx == NULL) - return false; - - TypedMDRVA<MDRawExceptionStream> exception(minidump_writer); - if (!exception.Allocate()) - return false; - - dir->stream_type = MD_EXCEPTION_STREAM; - dir->location = exception.location(); - exception.get()->thread_id = writer_args->crashed_lwpid; - exception.get()->exception_record.exception_code = writer_args->signo; - exception.get()->exception_record.exception_flags = 0; - -#if TARGET_CPU_SPARC - if (writer_args->sig_ctx != NULL) { - exception.get()->exception_record.exception_address = - writer_args->sig_ctx->uc_mcontext.gregs[REG_PC]; - } else { - return true; - } - - // Write context of the exception. - TypedMDRVA<MDRawContextSPARC> context(minidump_writer); - if (!context.Allocate()) - return false; - exception.get()->thread_context = context.location(); - memset(context.get(), 0, sizeof(MDRawContextSPARC)); - return WriteContext(context.get(), writer_args->sig_ctx); -#elif TARGET_CPU_X86 - if (writer_args->sig_ctx != NULL) { - exception.get()->exception_record.exception_address = - writer_args->sig_ctx->uc_mcontext.gregs[EIP]; - } else { - return true; - } - - // Write context of the exception. - TypedMDRVA<MDRawContextX86> context(minidump_writer); - if (!context.Allocate()) - return false; - exception.get()->thread_context = context.location(); - memset(context.get(), 0, sizeof(MDRawContextX86)); - return WriteContext(context.get(), - (int *)&writer_args->sig_ctx->uc_mcontext.gregs, - NULL); -#endif -} - -bool WriteMiscInfoStream(MinidumpFileWriter *minidump_writer, - const WriterArgument *writer_args, - MDRawDirectory *dir) { - TypedMDRVA<MDRawMiscInfo> info(minidump_writer); - - if (!info.Allocate()) - return false; - - dir->stream_type = MD_MISC_INFO_STREAM; - dir->location = info.location(); - info.get()->size_of_info = sizeof(MDRawMiscInfo); - info.get()->flags1 = MD_MISCINFO_FLAGS1_PROCESS_ID; - info.get()->process_id = writer_args->requester_pid; - - return true; -} - -bool WriteBreakpadInfoStream(MinidumpFileWriter *minidump_writer, - const WriterArgument *writer_args, - MDRawDirectory *dir) { - TypedMDRVA<MDRawBreakpadInfo> info(minidump_writer); - - if (!info.Allocate()) - return false; - - dir->stream_type = MD_BREAKPAD_INFO_STREAM; - dir->location = info.location(); - - info.get()->validity = MD_BREAKPAD_INFO_VALID_DUMP_THREAD_ID | - MD_BREAKPAD_INFO_VALID_REQUESTING_THREAD_ID; - info.get()->dump_thread_id = getpid(); - info.get()->requesting_thread_id = writer_args->requester_pid; - return true; -} - -class AutoLwpResumer { - public: - AutoLwpResumer(SolarisLwp *lwp) : lwp_(lwp) {} - ~AutoLwpResumer() { lwp_->ControlAllLwps(false); } - private: - SolarisLwp *lwp_; -}; - -// Prototype of writer functions. -typedef bool (*WriteStreamFN)(MinidumpFileWriter *, - const WriterArgument *, - MDRawDirectory *); - -// Function table to writer a full minidump. -const WriteStreamFN writers[] = { - WriteLwpListStream, - WriteModuleListStream, - WriteSystemInfoStream, - WriteExceptionStream, - WriteMiscInfoStream, - WriteBreakpadInfoStream, -}; - -// Will call each writer function in the writers table. -//void* MinidumpGenerator::Write(void *argument) { -void* Write(void *argument) { - WriterArgument *writer_args = static_cast<WriterArgument *>(argument); - - if (!writer_args->lwp_lister->ControlAllLwps(true)) - return NULL; - - AutoLwpResumer lwpResumer(writer_args->lwp_lister); - - if (writer_args->sighandler_ebp != 0 && - writer_args->lwp_lister->FindSigContext(writer_args->sighandler_ebp, - &writer_args->sig_ctx)) { - writer_args->crashed_stack_bottom = - writer_args->lwp_lister->GetLwpStackBottom( -#if TARGET_CPU_SPARC - writer_args->sig_ctx->uc_mcontext.gregs[REG_O6] -#elif TARGET_CPU_X86 - writer_args->sig_ctx->uc_mcontext.gregs[UESP] -#endif - ); - - int crashed_lwpid = FindCrashingLwp(writer_args->crashed_stack_bottom, - writer_args->requester_pid, - writer_args->lwp_lister); - if (crashed_lwpid > 0) - writer_args->crashed_lwpid = crashed_lwpid; - } - - MinidumpFileWriter *minidump_writer = writer_args->minidump_writer; - TypedMDRVA<MDRawHeader> header(minidump_writer); - TypedMDRVA<MDRawDirectory> dir(minidump_writer); - if (!header.Allocate()) - return 0; - - int writer_count = sizeof(writers) / sizeof(writers[0]); - // Need directory space for all writers. - if (!dir.AllocateArray(writer_count)) - return 0; - header.get()->signature = MD_HEADER_SIGNATURE; - header.get()->version = MD_HEADER_VERSION; - header.get()->time_date_stamp = time(NULL); - header.get()->stream_count = writer_count; - header.get()->stream_directory_rva = dir.position(); - - int dir_index = 0; - MDRawDirectory local_dir; - for (int i = 0; i < writer_count; ++i) { - if ((*writers[i])(minidump_writer, writer_args, &local_dir)) - dir.CopyIndex(dir_index++, &local_dir); - } - - return 0; -} - -} // namespace - -namespace google_breakpad { - -MinidumpGenerator::MinidumpGenerator() { -} - -MinidumpGenerator::~MinidumpGenerator() { -} - -// Write minidump into file. -// It runs in a different thread from the crashing thread. -bool MinidumpGenerator::WriteMinidumpToFile(const char *file_pathname, - int signo, - uintptr_t sighandler_ebp, - ucontext_t **sig_ctx) const { - // The exception handler thread. - pthread_t handler_thread; - - assert(file_pathname != NULL); - - if (file_pathname == NULL) - return false; - - MinidumpFileWriter minidump_writer; - if (minidump_writer.Open(file_pathname)) { - WriterArgument argument; - memset(&argument, 0, sizeof(argument)); - SolarisLwp lwp_lister(getpid()); - argument.lwp_lister = &lwp_lister; - argument.minidump_writer = &minidump_writer; - argument.requester_pid = getpid(); - argument.crashed_lwpid = pthread_self(); - argument.signo = signo; - argument.sighandler_ebp = sighandler_ebp; - argument.sig_ctx = NULL; - - pthread_create(&handler_thread, NULL, Write, (void *)&argument); - pthread_join(handler_thread, NULL); - return true; - } - - return false; -} - -} // namespace google_breakpad diff --git a/toolkit/crashreporter/google-breakpad/src/client/solaris/handler/minidump_generator.h b/toolkit/crashreporter/google-breakpad/src/client/solaris/handler/minidump_generator.h deleted file mode 100644 index 882f9e1de..000000000 --- a/toolkit/crashreporter/google-breakpad/src/client/solaris/handler/minidump_generator.h +++ /dev/null @@ -1,70 +0,0 @@ -// Copyright (c) 2007, 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: Alfred Peng - -#ifndef CLIENT_SOLARIS_HANDLER_MINIDUMP_GENERATOR_H__ -#define CLIENT_SOLARIS_HANDLER_MINIDUMP_GENERATOR_H__ - -#include <ucontext.h> - -#include "client/minidump_file_writer.h" -#include "client/solaris/handler/solaris_lwp.h" -#include "google_breakpad/common/breakpad_types.h" -#include "google_breakpad/common/minidump_format.h" - -namespace google_breakpad { - -// -// MinidumpGenerator -// -// A minidump generator should be created before any exception happen. -// -class MinidumpGenerator { - // Callback run for writing lwp information in the process. - friend bool LwpInformationCallback(lwpstatus_t *lsp, void *context); - - // Callback run for writing module information in the process. - friend bool ModuleInfoCallback(const ModuleInfo &module_info, void *context); - - public: - MinidumpGenerator(); - - ~MinidumpGenerator(); - - // Write minidump. - bool WriteMinidumpToFile(const char *file_pathname, - int signo, - uintptr_t sighandler_ebp, - ucontext_t **sig_ctx) const; -}; - -} // namespace google_breakpad - -#endif // CLIENT_SOLARIS_HANDLER_MINIDUMP_GENERATOR_H_ diff --git a/toolkit/crashreporter/google-breakpad/src/client/solaris/handler/minidump_test.cc b/toolkit/crashreporter/google-breakpad/src/client/solaris/handler/minidump_test.cc deleted file mode 100644 index 33302d86a..000000000 --- a/toolkit/crashreporter/google-breakpad/src/client/solaris/handler/minidump_test.cc +++ /dev/null @@ -1,75 +0,0 @@ -// Copyright (c) 2007, 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: Alfred Peng - -#include <pthread.h> -#include <unistd.h> - -#include "client/minidump_file_writer.h" -#include "client/solaris/handler/minidump_generator.h" - -using std::string; -using google_breakpad::MinidumpGenerator; - -static bool doneWritingReport = false; - -static void *Reporter(void *) { - char buffer[PATH_MAX]; - MinidumpGenerator md; - - // Write it to the desktop - snprintf(buffer, sizeof(buffer), "./minidump_test.out"); - fprintf(stdout, "Writing %s\n", buffer); - - md.WriteMinidumpToFile(buffer, 0, 0, NULL); - doneWritingReport = true; - - return NULL; -} - -static void SleepyFunction() { - while (!doneWritingReport) { - usleep(100); - } -} - -int main(int argc, char * const argv[]) { - pthread_t reporter_thread; - - if (pthread_create(&reporter_thread, NULL, Reporter, NULL) == 0) { - pthread_detach(reporter_thread); - } else { - perror("pthread_create"); - } - - SleepyFunction(); - - return 0; -} diff --git a/toolkit/crashreporter/google-breakpad/src/client/solaris/handler/moz.build b/toolkit/crashreporter/google-breakpad/src/client/solaris/handler/moz.build deleted file mode 100644 index 3442ac0f8..000000000 --- a/toolkit/crashreporter/google-breakpad/src/client/solaris/handler/moz.build +++ /dev/null @@ -1,18 +0,0 @@ -# -*- Mode: python; 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 += [ - 'exception_handler.cc', - 'minidump_generator.cc', - 'solaris_lwp.cc', -] - -FINAL_LIBRARY = 'xul' - -LOCAL_INCLUDES += [ - '../../..', -] - diff --git a/toolkit/crashreporter/google-breakpad/src/client/solaris/handler/solaris_lwp.cc b/toolkit/crashreporter/google-breakpad/src/client/solaris/handler/solaris_lwp.cc deleted file mode 100644 index 0148997ad..000000000 --- a/toolkit/crashreporter/google-breakpad/src/client/solaris/handler/solaris_lwp.cc +++ /dev/null @@ -1,436 +0,0 @@ -// Copyright (c) 2007, 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: Alfred Peng - -#include <dirent.h> -#include <elf.h> -#include <errno.h> -#include <fcntl.h> -#include <limits.h> -#include <sys/frame.h> -#include <sys/stat.h> -#include <sys/types.h> -#include <sys/wait.h> -#include <unistd.h> - -#include <algorithm> -#include <cassert> -#include <cstdio> -#include <cstdlib> -#include <functional> - -#include "client/solaris/handler/solaris_lwp.h" -#include "common/solaris/message_output.h" - -using namespace google_breakpad; - -// This unamed namespace contains helper function. -namespace { - -uintptr_t stack_base_address = 0; -static const int HEADER_MAX = 2000; -static const int MAP_MAX = 1000; - -// Context information for the callbacks when validating address by listing -// modules. -struct AddressValidatingContext { - uintptr_t address; - bool is_mapped; - - AddressValidatingContext() : address(0UL), is_mapped(false) { - } -}; - -// Convert from string to int. -static bool LocalAtoi(char *s, int *r) { - assert(s != NULL); - assert(r != NULL); - char *endptr = NULL; - int ret = strtol(s, &endptr, 10); - if (endptr == s) - return false; - *r = ret; - return true; -} - -// Callback invoked for each mapped module. -// It uses the module's adderss range to validate the address. -static bool AddressNotInModuleCallback(const ModuleInfo &module_info, - void *context) { - AddressValidatingContext *addr = - reinterpret_cast<AddressValidatingContext *>(context); - if (addr->is_mapped = ((module_info.start_addr > 0) && - (addr->address >= module_info.start_addr) && - (addr->address <= module_info.start_addr + - module_info.size))) { - stack_base_address = module_info.start_addr + module_info.size; - } - - return !addr->is_mapped; -} - -static int IterateLwpAll(int pid, - CallbackParam<LwpidCallback> *callback_param) { - char lwp_path[40]; - DIR *dir; - int count = 0; - - snprintf(lwp_path, sizeof (lwp_path), "/proc/%d/lwp", (int)pid); - if ((dir = opendir(lwp_path)) == NULL) - return -1; - - struct dirent *entry = NULL; - while ((entry = readdir(dir)) != NULL) { - if ((strcmp(entry->d_name, ".") != 0) && - (strcmp(entry->d_name, "..") != 0)) { - int lwpid = 0; - int last_pid = 0; - if (LocalAtoi(entry->d_name, &lwpid) && last_pid != lwpid) { - last_pid = lwpid; - ++count; - if (callback_param && - !(callback_param->call_back)(lwpid, callback_param->context)) { - break; - } - } - } - } - - closedir(dir); - return count; -} - -#if defined(__i386) && !defined(NO_FRAME_POINTER) -void *GetNextFrame(void **last_ebp) { - void *sp = *last_ebp; - if ((unsigned long)sp == (unsigned long)last_ebp) - return NULL; - if ((unsigned long)sp & (sizeof(void *) - 1)) - return NULL; - if ((unsigned long)sp - (unsigned long)last_ebp > 100000) - return NULL; - return sp; -} -#elif defined(__sparc) -void *GetNextFrame(void *last_ebp) { - return reinterpret_cast<struct frame *>(last_ebp)->fr_savfp; -} -#else -void *GetNextFrame(void **last_ebp) { - return reinterpret_cast<void*>(last_ebp); -} -#endif - - -class AutoCloser { - public: - AutoCloser(int fd) : fd_(fd) {} - ~AutoCloser() { if (fd_) close(fd_); } - private: - int fd_; -}; - -// Control the execution of the lwp. -// Suspend/Resume lwp based on the value of context. -static bool ControlLwp(int lwpid, void *context) { - // The current thread is the one to handle the crash. Ignore it. - if (lwpid != pthread_self()) { - int ctlfd; - char procname[PATH_MAX]; - bool suspend = *(bool *)context; - - // Open the /proc/$pid/lwp/$lwpid/lwpctl files - snprintf(procname, sizeof (procname), "/proc/self/lwp/%d/lwpctl", lwpid); - - if ((ctlfd = open(procname, O_WRONLY|O_EXCL)) < 0) { - print_message2(2, "failed to open %s in ControlLwp\n", procname); - return false; - } - - AutoCloser autocloser(ctlfd); - - long ctl[2]; - ctl[0] = suspend ? PCSTOP : PCRUN; - ctl[1] = 0; - if (write(ctlfd, ctl, sizeof (ctl)) != sizeof (ctl)) { - print_message2(2, "failed in lwp %d\n", lwpid); - return false; - } - } - - return true; -} - -/* - * Utility function to read the contents of a file that contains a - * prheader_t at the start (/proc/$pid/lstatus or /proc/$pid/lpsinfo). - * Return true on success. - */ -static bool read_lfile(int pid, const char *lname, prheader_t *lhp) { - char lpath[PATH_MAX]; - struct stat statb; - int fd; - size_t size; - - snprintf(lpath, sizeof (lpath), "/proc/%d/%s", pid, lname); - if ((fd = open(lpath, O_RDONLY)) < 0) { - print_message2(2, "failed to open %s in read_lfile\n", lpath); - return false; - } - - AutoCloser autocloser(fd); - - if (fstat(fd, &statb) != 0) - return false; - - size = statb.st_size; - if ((size / sizeof (prheader_t)) + 32 > HEADER_MAX) { - print_message1(2, "map size overflow\n"); - return false; - } - - if (pread(fd, lhp, size, 0) <= sizeof (prheader_t)) - return false; - - return true; -} - -} // namespace - -namespace google_breakpad { - -SolarisLwp::SolarisLwp(int pid) : pid_(pid) { -} - -SolarisLwp::~SolarisLwp() { -} - -int SolarisLwp::ControlAllLwps(bool suspend) { - CallbackParam<LwpidCallback> callback_param(ControlLwp, &suspend); - return IterateLwpAll(pid_, &callback_param); -} - -int SolarisLwp::GetLwpCount() const { - return IterateLwpAll(pid_, NULL); -} - -int SolarisLwp::Lwp_iter_all(int pid, - CallbackParam<LwpCallback> *callback_param) const { - lwpstatus_t *Lsp; - lwpstatus_t *sp; - prheader_t lphp[HEADER_MAX]; - prheader_t lhp[HEADER_MAX]; - prheader_t *Lphp = lphp; - prheader_t *Lhp = lhp; - lwpsinfo_t *Lpsp; - long nstat; - long ninfo; - int rv = 0; - - /* - * The /proc/pid/lstatus file has the array of lwpstatus_t's and the - * /proc/pid/lpsinfo file has the array of lwpsinfo_t's. - */ - if (read_lfile(pid, "lstatus", Lhp) == NULL) - return -1; - if (read_lfile(pid, "lpsinfo", Lphp) == NULL) { - return -1; - } - - Lsp = (lwpstatus_t *)(uintptr_t)(Lhp + 1); - Lpsp = (lwpsinfo_t *)(uintptr_t)(Lphp + 1); - - for (ninfo = Lphp->pr_nent; ninfo != 0; --ninfo) { - if (Lpsp->pr_sname != 'Z') { - sp = Lsp; - Lsp = (lwpstatus_t *)((uintptr_t)Lsp + Lhp->pr_entsize); - } else { - sp = NULL; - } - if (callback_param && - !(callback_param->call_back)(sp, callback_param->context)) - break; - ++rv; - Lpsp = (lwpsinfo_t *)((uintptr_t)Lpsp + Lphp->pr_entsize); - } - - return rv; -} - -uintptr_t SolarisLwp::GetLwpStackBottom(uintptr_t current_esp) const { - AddressValidatingContext addr; - addr.address = current_esp; - CallbackParam<ModuleCallback> callback_param(AddressNotInModuleCallback, - &addr); - ListModules(&callback_param); - return stack_base_address; -} - -int SolarisLwp::GetModuleCount() const { - return ListModules(NULL); -} - -int SolarisLwp::ListModules( - CallbackParam<ModuleCallback> *callback_param) const { - const char *maps_path = "/proc/self/map"; - struct stat status; - int fd = 0, num; - prmap_t map_array[MAP_MAX]; - prmap_t *maps = map_array; - size_t size; - - if ((fd = open(maps_path, O_RDONLY)) == -1) { - print_message2(2, "failed to open %s in ListModules\n", maps_path); - return -1; - } - - AutoCloser autocloser(fd); - - if (fstat(fd, &status)) - return -1; - - /* - * Determine number of mappings, this value must be - * larger than the actual module count - */ - size = status.st_size; - if ((num = (int)(size / sizeof (prmap_t))) > MAP_MAX) { - print_message1(2, "map size overflow\n"); - return -1; - } - - if (read(fd, (void *)maps, size) < 0) { - print_message2(2, "failed to read %d\n", fd); - return -1; - } - - prmap_t *_maps; - int _num; - int module_count = 0; - - /* - * Scan each mapping - note it is assummed that the mappings are - * presented in order. We fill holes between mappings. On intel - * the last mapping is usually the data segment of ld.so.1, after - * this comes a red zone into which non-fixed mapping won't get - * place. Thus we can simply bail from the loop after seeing the - * last mapping. - */ - for (_num = 0, _maps = maps; _num < num; ++_num, ++_maps) { - ModuleInfo module; - char *name = _maps->pr_mapname; - - memset(&module, 0, sizeof (module)); - module.start_addr = _maps->pr_vaddr; - module.size = _maps->pr_size; - if (strlen(name) > 0) { - int objectfd = 0; - char path[PATH_MAX]; - char buf[SELFMAG]; - - snprintf(path, sizeof (path), "/proc/self/object/%s", name); - if ((objectfd = open(path, O_RDONLY)) < 0) { - print_message1(2, "can't open module file\n"); - continue; - } - - AutoCloser autocloser(objectfd); - - if (read(objectfd, buf, SELFMAG) != SELFMAG) { - print_message1(2, "can't read module file\n"); - continue; - } - if (buf[0] != ELFMAG0 || buf[1] != ELFMAG1 || - buf[2] != ELFMAG2 || buf[3] != ELFMAG3) { - continue; - } - - strncpy(module.name, name, sizeof (module.name) - 1); - ++module_count; - } - if (callback_param && - (!callback_param->call_back(module, callback_param->context))) { - break; - } - } - - return module_count; -} - -// Check if the address is a valid virtual address. -// If the address is in any of the mapped modules, we take it as valid. -// Otherwise it is invalid. -bool SolarisLwp::IsAddressMapped(uintptr_t address) const { - AddressValidatingContext addr; - addr.address = address; - CallbackParam<ModuleCallback> callback_param(AddressNotInModuleCallback, - &addr); - ListModules(&callback_param); - return addr.is_mapped; -} - -// We're looking for a ucontext_t as the second parameter -// to a signal handler function call. Luckily, the ucontext_t -// has an ebp(fp on SPARC) member which should match the ebp(fp) -// pointed to by the ebp(fp) of the signal handler frame. -// The Solaris stack looks like this: -// http://src.opensolaris.org/source/xref/onnv/onnv-gate/usr/src/lib/libproc/common/Pstack.c#81 -bool SolarisLwp::FindSigContext(uintptr_t sighandler_ebp, - ucontext_t **sig_ctx) { - uintptr_t previous_ebp; - uintptr_t sig_ebp; - const int MAX_STACK_DEPTH = 50; - int depth_counter = 0; - - do { -#if TARGET_CPU_SPARC - previous_ebp = reinterpret_cast<uintptr_t>(GetNextFrame( - reinterpret_cast<void*>(sighandler_ebp))); - *sig_ctx = reinterpret_cast<ucontext_t*>(sighandler_ebp + sizeof (struct frame)); - uintptr_t sig_esp = (*sig_ctx)->uc_mcontext.gregs[REG_O6]; - if (sig_esp < previous_ebp && sig_esp > sighandler_ebp) - sig_ebp = (uintptr_t)(((struct frame *)sig_esp)->fr_savfp); - -#elif TARGET_CPU_X86 - previous_ebp = reinterpret_cast<uintptr_t>(GetNextFrame( - reinterpret_cast<void**>(sighandler_ebp))); - *sig_ctx = reinterpret_cast<ucontext_t*>(sighandler_ebp + sizeof (struct frame) + - 3 * sizeof(uintptr_t)); - sig_ebp = (*sig_ctx)->uc_mcontext.gregs[EBP]; -#endif - sighandler_ebp = previous_ebp; - depth_counter++; - } while(previous_ebp != sig_ebp && sighandler_ebp != 0 && - IsAddressMapped(sighandler_ebp) && depth_counter < MAX_STACK_DEPTH); - - return previous_ebp == sig_ebp && previous_ebp != 0; -} - -} // namespace google_breakpad diff --git a/toolkit/crashreporter/google-breakpad/src/client/solaris/handler/solaris_lwp.h b/toolkit/crashreporter/google-breakpad/src/client/solaris/handler/solaris_lwp.h deleted file mode 100644 index 0914cfcd8..000000000 --- a/toolkit/crashreporter/google-breakpad/src/client/solaris/handler/solaris_lwp.h +++ /dev/null @@ -1,160 +0,0 @@ -// Copyright (c) 2007, 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: Alfred Peng - -#ifndef CLIENT_SOLARIS_HANDLER_SOLARIS_LWP_H__ -#define CLIENT_SOLARIS_HANDLER_SOLARIS_LWP_H__ - -#if defined(sparc) || defined(__sparc) -#define TARGET_CPU_SPARC 1 -#elif defined(i386) || defined(__i386) -#define TARGET_CPU_X86 1 -#else -#error "cannot determine cpu type" -#endif - -#include <signal.h> -#include <stdint.h> -#include <sys/user.h> -#include <ucontext.h> - -#ifndef _KERNEL -#define _KERNEL -#define MUST_UNDEF_KERNEL -#endif // _KERNEL -#include <sys/procfs.h> -#ifdef MUST_UNDEF_KERNEL -#undef _KERNEL -#undef MUST_UNDEF_KERNEL -#endif // MUST_UNDEF_KERNEL - -namespace google_breakpad { - -// Max module path name length. -static const int kMaxModuleNameLength = 256; - -// Holding infomaton about a module in the process. -struct ModuleInfo { - char name[kMaxModuleNameLength]; - uintptr_t start_addr; - int size; -}; - -// A callback to run when getting a lwp in the process. -// Return true will go on to the next lwp while return false will stop the -// iteration. -typedef bool (*LwpCallback)(lwpstatus_t* lsp, void *context); - -// A callback to run when a new module is found in the process. -// Return true will go on to the next module while return false will stop the -// iteration. -typedef bool (*ModuleCallback)(const ModuleInfo &module_info, void *context); - -// A callback to run when getting a lwpid in the process. -// Return true will go on to the next lwp while return false will stop the -// iteration. -typedef bool (*LwpidCallback)(int lwpid, void *context); - -// Holding the callback information. -template<class CallbackFunc> -struct CallbackParam { - // Callback function address. - CallbackFunc call_back; - // Callback context; - void *context; - - CallbackParam() : call_back(NULL), context(NULL) { - } - - CallbackParam(CallbackFunc func, void *func_context) : - call_back(func), context(func_context) { - } -}; - -/////////////////////////////////////////////////////////////////////////////// - -// -// SolarisLwp -// -// Provides handy support for operation on Solaris lwps. -// It uses proc file system to get lwp information. -// -// TODO(Alfred): Currently it only supports x86. Add SPARC support. -// -class SolarisLwp { - public: - // Create a SolarisLwp instance to list all the lwps in a process. - explicit SolarisLwp(int pid); - ~SolarisLwp(); - - int getpid() const { return this->pid_; } - - // Control all the lwps in the process. - // Return the number of suspended/resumed lwps in the process. - // Return -1 means failed to control lwps. - int ControlAllLwps(bool suspend); - - // Get the count of lwps in the process. - // Return -1 means error. - int GetLwpCount() const; - - // Iterate the lwps of process. - // Whenever there is a lwp found, the callback will be invoked to process - // the information. - // Return the callback return value or -1 on error. - int Lwp_iter_all(int pid, CallbackParam<LwpCallback> *callback_param) const; - - // Get the module count of the current process. - int GetModuleCount() const; - - // Get the mapped modules in the address space. - // Whenever a module is found, the callback will be invoked to process the - // information. - // Return how may modules are found. - int ListModules(CallbackParam<ModuleCallback> *callback_param) const; - - // Get the bottom of the stack from esp. - uintptr_t GetLwpStackBottom(uintptr_t current_esp) const; - - // Finds a signal context on the stack given the ebp of our signal handler. - bool FindSigContext(uintptr_t sighandler_ebp, ucontext_t **sig_ctx); - - private: - // Check if the address is a valid virtual address. - bool IsAddressMapped(uintptr_t address) const; - - private: - // The pid of the process we are listing lwps. - int pid_; -}; - -} // namespace google_breakpad - -#endif // CLIENT_SOLARIS_HANDLER_SOLARIS_LWP_H__ |