Revision: 3398 Author: [email protected] Date: Wed Dec 2 05:38:50 2009 Log: Initial OpenBSD support
Patch by Peter Valchev <[email protected]>. [email protected] Review URL: http://codereview.chromium.org/465002 http://code.google.com/p/v8/source/detail?r=3398 Added: /branches/bleeding_edge/src/platform-openbsd.cc Modified: /branches/bleeding_edge/SConstruct /branches/bleeding_edge/src/SConscript /branches/bleeding_edge/src/dtoa-config.c /branches/bleeding_edge/src/platform-posix.cc /branches/bleeding_edge/tools/gyp/v8.gyp /branches/bleeding_edge/tools/utils.py ======================================= --- /dev/null +++ /branches/bleeding_edge/src/platform-openbsd.cc Wed Dec 2 05:38:50 2009 @@ -0,0 +1,597 @@ +// Copyright 2006-2009 the V8 project authors. 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. + +// Platform specific code for OpenBSD goes here. For the POSIX comaptible parts +// the implementation is in platform-posix.cc. + +#include <pthread.h> +#include <semaphore.h> +#include <signal.h> +#include <sys/time.h> +#include <sys/resource.h> +#include <sys/types.h> +#include <stdlib.h> + +#include <sys/types.h> // mmap & munmap +#include <sys/mman.h> // mmap & munmap +#include <sys/stat.h> // open +#include <sys/fcntl.h> // open +#include <unistd.h> // getpagesize +#include <execinfo.h> // backtrace, backtrace_symbols +#include <strings.h> // index +#include <errno.h> +#include <stdarg.h> +#include <limits.h> + +#undef MAP_TYPE + +#include "v8.h" + +#include "platform.h" + + +namespace v8 { +namespace internal { + +// 0 is never a valid thread id on OpenBSD since tids and pids share a +// name space and pid 0 is used to kill the group (see man 2 kill). +static const pthread_t kNoThread = (pthread_t) 0; + + +double ceiling(double x) { + // Correct as on OS X + if (-1.0 < x && x < 0.0) { + return -0.0; + } else { + return ceil(x); + } +} + + +void OS::Setup() { + // Seed the random number generator. + // Convert the current time to a 64-bit integer first, before converting it + // to an unsigned. Going directly can cause an overflow and the seed to be + // set to all ones. The seed will be identical for different instances that + // call this setup code within the same millisecond. + uint64_t seed = static_cast<uint64_t>(TimeCurrentMillis()); + srandom(static_cast<unsigned int>(seed)); +} + + +double OS::nan_value() { + return NAN; +} + + +int OS::ActivationFrameAlignment() { + // 16 byte alignment on OpenBSD + return 16; +} + + +// We keep the lowest and highest addresses mapped as a quick way of +// determining that pointers are outside the heap (used mostly in assertions +// and verification). The estimate is conservative, ie, not all addresses in +// 'allocated' space are actually allocated to our heap. The range is +// [lowest, highest), inclusive on the low and and exclusive on the high end. +static void* lowest_ever_allocated = reinterpret_cast<void*>(-1); +static void* highest_ever_allocated = reinterpret_cast<void*>(0); + + +static void UpdateAllocatedSpaceLimits(void* address, int size) { + lowest_ever_allocated = Min(lowest_ever_allocated, address); + highest_ever_allocated = + Max(highest_ever_allocated, + reinterpret_cast<void*>(reinterpret_cast<char*>(address) + size)); +} + + +bool OS::IsOutsideAllocatedSpace(void* address) { + return address < lowest_ever_allocated || address >= highest_ever_allocated; +} + + +size_t OS::AllocateAlignment() { + return getpagesize(); +} + + +void* OS::Allocate(const size_t requested, + size_t* allocated, + bool executable) { + const size_t msize = RoundUp(requested, getpagesize()); + int prot = PROT_READ | PROT_WRITE | (executable ? PROT_EXEC : 0); + void* mbase = mmap(NULL, msize, prot, MAP_PRIVATE | MAP_ANON, -1, 0); + + if (mbase == MAP_FAILED) { + LOG(StringEvent("OS::Allocate", "mmap failed")); + return NULL; + } + *allocated = msize; + UpdateAllocatedSpaceLimits(mbase, msize); + return mbase; +} + + +void OS::Free(void* buf, const size_t length) { + int result = munmap(buf, length); + USE(result); + ASSERT(result == 0); +} + + +#ifdef ENABLE_HEAP_PROTECTION + +void OS::Protect(void* address, size_t size) { + UNIMPLEMENTED(); +} + + +void OS::Unprotect(void* address, size_t size, bool is_executable) { + UNIMPLEMENTED(); +} + +#endif + + +void OS::Sleep(int milliseconds) { + unsigned int ms = static_cast<unsigned int>(milliseconds); + usleep(1000 * ms); +} + + +void OS::Abort() { + // Redirect to std abort to signal abnormal program termination. + abort(); +} + + +void OS::DebugBreak() { +#if defined(__arm__) || defined(__thumb__) + asm("bkpt 0"); +#else + asm("int $3"); +#endif +} + + +class PosixMemoryMappedFile : public OS::MemoryMappedFile { + public: + PosixMemoryMappedFile(FILE* file, void* memory, int size) + : file_(file), memory_(memory), size_(size) { } + virtual ~PosixMemoryMappedFile(); + virtual void* memory() { return memory_; } + private: + FILE* file_; + void* memory_; + int size_; +}; + + +OS::MemoryMappedFile* OS::MemoryMappedFile::create(const char* name, int size, + void* initial) { + FILE* file = fopen(name, "w+"); + if (file == NULL) return NULL; + int result = fwrite(initial, size, 1, file); + if (result < 1) { + fclose(file); + return NULL; + } + void* memory = + mmap(0, size, PROT_READ | PROT_WRITE, MAP_SHARED, fileno(file), 0); + return new PosixMemoryMappedFile(file, memory, size); +} + + +PosixMemoryMappedFile::~PosixMemoryMappedFile() { + if (memory_) munmap(memory_, size_); + fclose(file_); +} + + +#ifdef ENABLE_LOGGING_AND_PROFILING +static unsigned StringToLong(char* buffer) { + return static_cast<unsigned>(strtol(buffer, NULL, 16)); // NOLINT +} +#endif + + +void OS::LogSharedLibraryAddresses() { +#ifdef ENABLE_LOGGING_AND_PROFILING + static const int MAP_LENGTH = 1024; + int fd = open("/proc/self/maps", O_RDONLY); + if (fd < 0) return; + while (true) { + char addr_buffer[11]; + addr_buffer[0] = '0'; + addr_buffer[1] = 'x'; + addr_buffer[10] = 0; + int result = read(fd, addr_buffer + 2, 8); + if (result < 8) break; + unsigned start = StringToLong(addr_buffer); + result = read(fd, addr_buffer + 2, 1); + if (result < 1) break; + if (addr_buffer[2] != '-') break; + result = read(fd, addr_buffer + 2, 8); + if (result < 8) break; + unsigned end = StringToLong(addr_buffer); + char buffer[MAP_LENGTH]; + int bytes_read = -1; + do { + bytes_read++; + if (bytes_read >= MAP_LENGTH - 1) + break; + result = read(fd, buffer + bytes_read, 1); + if (result < 1) break; + } while (buffer[bytes_read] != '\n'); + buffer[bytes_read] = 0; + // Ignore mappings that are not executable. + if (buffer[3] != 'x') continue; + char* start_of_path = index(buffer, '/'); + // There may be no filename in this line. Skip to next. + if (start_of_path == NULL) continue; + buffer[bytes_read] = 0; + LOG(SharedLibraryEvent(start_of_path, start, end)); + } + close(fd); +#endif +} + + +int OS::StackWalk(Vector<OS::StackFrame> frames) { + UNIMPLEMENTED(); + return 1; +} + + +// Constants used for mmap. +static const int kMmapFd = -1; +static const int kMmapFdOffset = 0; + + +VirtualMemory::VirtualMemory(size_t size) { + address_ = mmap(NULL, size, PROT_NONE, + MAP_PRIVATE | MAP_ANON | MAP_NORESERVE, + kMmapFd, kMmapFdOffset); + size_ = size; +} + + +VirtualMemory::~VirtualMemory() { + if (IsReserved()) { + if (0 == munmap(address(), size())) address_ = MAP_FAILED; + } +} + + +bool VirtualMemory::IsReserved() { + return address_ != MAP_FAILED; +} + + +bool VirtualMemory::Commit(void* address, size_t size, bool executable) { + int prot = PROT_READ | PROT_WRITE | (executable ? PROT_EXEC : 0); + if (MAP_FAILED == mmap(address, size, prot, + MAP_PRIVATE | MAP_ANON | MAP_FIXED, + kMmapFd, kMmapFdOffset)) { + return false; + } + + UpdateAllocatedSpaceLimits(address, size); + return true; +} + + +bool VirtualMemory::Uncommit(void* address, size_t size) { + return mmap(address, size, PROT_NONE, + MAP_PRIVATE | MAP_ANON | MAP_NORESERVE, + kMmapFd, kMmapFdOffset) != MAP_FAILED; +} + + +class ThreadHandle::PlatformData : public Malloced { + public: + explicit PlatformData(ThreadHandle::Kind kind) { + Initialize(kind); + } + + void Initialize(ThreadHandle::Kind kind) { + switch (kind) { + case ThreadHandle::SELF: thread_ = pthread_self(); break; + case ThreadHandle::INVALID: thread_ = kNoThread; break; + } + } + pthread_t thread_; // Thread handle for pthread. +}; + + +ThreadHandle::ThreadHandle(Kind kind) { + data_ = new PlatformData(kind); +} + + +void ThreadHandle::Initialize(ThreadHandle::Kind kind) { + data_->Initialize(kind); +} + + +ThreadHandle::~ThreadHandle() { + delete data_; +} + + +bool ThreadHandle::IsSelf() const { + return pthread_equal(data_->thread_, pthread_self()); +} + + +bool ThreadHandle::IsValid() const { + return data_->thread_ != kNoThread; +} + + +Thread::Thread() : ThreadHandle(ThreadHandle::INVALID) { +} + + +Thread::~Thread() { +} + + +static void* ThreadEntry(void* arg) { + Thread* thread = reinterpret_cast<Thread*>(arg); + // This is also initialized by the first argument to pthread_create() but we + // don't know which thread will run first (the original thread or the new + // one) so we initialize it here too. + thread->thread_handle_data()->thread_ = pthread_self(); + ASSERT(thread->IsValid()); + thread->Run(); + return NULL; +} + + +void Thread::Start() { + pthread_create(&thread_handle_data()->thread_, NULL, ThreadEntry, this); + ASSERT(IsValid()); +} + + +void Thread::Join() { + pthread_join(thread_handle_data()->thread_, NULL); +} + + +Thread::LocalStorageKey Thread::CreateThreadLocalKey() { + pthread_key_t key; + int result = pthread_key_create(&key, NULL); + USE(result); + ASSERT(result == 0); + return static_cast<LocalStorageKey>(key); +} + + +void Thread::DeleteThreadLocalKey(LocalStorageKey key) { + pthread_key_t pthread_key = static_cast<pthread_key_t>(key); + int result = pthread_key_delete(pthread_key); + USE(result); + ASSERT(result == 0); +} + + +void* Thread::GetThreadLocal(LocalStorageKey key) { + pthread_key_t pthread_key = static_cast<pthread_key_t>(key); + return pthread_getspecific(pthread_key); +} + + +void Thread::SetThreadLocal(LocalStorageKey key, void* value) { + pthread_key_t pthread_key = static_cast<pthread_key_t>(key); + pthread_setspecific(pthread_key, value); +} + + +void Thread::YieldCPU() { + sched_yield(); +} + + +class OpenBSDMutex : public Mutex { + public: + + OpenBSDMutex() { + pthread_mutexattr_t attrs; + int result = pthread_mutexattr_init(&attrs); + ASSERT(result == 0); + result = pthread_mutexattr_settype(&attrs, PTHREAD_MUTEX_RECURSIVE); + ASSERT(result == 0); + result = pthread_mutex_init(&mutex_, &attrs); + ASSERT(result == 0); + } + + virtual ~OpenBSDMutex() { pthread_mutex_destroy(&mutex_); } + + virtual int Lock() { + int result = pthread_mutex_lock(&mutex_); + return result; + } + + virtual int Unlock() { + int result = pthread_mutex_unlock(&mutex_); + return result; + } + + private: + pthread_mutex_t mutex_; // Pthread mutex for POSIX platforms. +}; + + +Mutex* OS::CreateMutex() { + return new OpenBSDMutex(); +} + + +class OpenBSDSemaphore : public Semaphore { + public: + explicit OpenBSDSemaphore(int count) { sem_init(&sem_, 0, count); } + virtual ~OpenBSDSemaphore() { sem_destroy(&sem_); } + + virtual void Wait(); + virtual bool Wait(int timeout); + virtual void Signal() { sem_post(&sem_); } + private: + sem_t sem_; +}; + + +void OpenBSDSemaphore::Wait() { + while (true) { + int result = sem_wait(&sem_); + if (result == 0) return; // Successfully got semaphore. + CHECK(result == -1 && errno == EINTR); // Signal caused spurious wakeup. + } +} + + +bool OpenBSDSemaphore::Wait(int timeout) { + const long kOneSecondMicros = 1000000; // NOLINT + + // Split timeout into second and nanosecond parts. + struct timeval delta; + delta.tv_usec = timeout % kOneSecondMicros; + delta.tv_sec = timeout / kOneSecondMicros; + + struct timeval current_time; + // Get the current time. + if (gettimeofday(¤t_time, NULL) == -1) { + return false; + } + + // Calculate time for end of timeout. + struct timeval end_time; + timeradd(¤t_time, &delta, &end_time); + + struct timespec ts; + TIMEVAL_TO_TIMESPEC(&end_time, &ts); + while (true) { + int result = sem_trywait(&sem_); + if (result == 0) return true; // Successfully got semaphore. + if (result == -1 && errno == ETIMEDOUT) return false; // Timeout. + CHECK(result == -1 && errno == EINTR); // Signal caused spurious wakeup. + } +} + + +Semaphore* OS::CreateSemaphore(int count) { + return new OpenBSDSemaphore(count); +} + + +#ifdef ENABLE_LOGGING_AND_PROFILING + +static Sampler* active_sampler_ = NULL; + +static void ProfilerSignalHandler(int signal, siginfo_t* info, void* context) { + USE(info); + if (signal != SIGPROF) return; + if (active_sampler_ == NULL) return; + + TickSample sample; + + // We always sample the VM state. + sample.state = Logger::state(); + + active_sampler_->Tick(&sample); +} + + +class Sampler::PlatformData : public Malloced { + public: + PlatformData() { + signal_handler_installed_ = false; + } + + bool signal_handler_installed_; + struct sigaction old_signal_handler_; + struct itimerval old_timer_value_; +}; + + +Sampler::Sampler(int interval, bool profiling) + : interval_(interval), profiling_(profiling), active_(false) { + data_ = new PlatformData(); +} + + +Sampler::~Sampler() { + delete data_; +} + + +void Sampler::Start() { + // There can only be one active sampler at the time on POSIX + // platforms. + if (active_sampler_ != NULL) return; + + // Request profiling signals. + struct sigaction sa; + sa.sa_sigaction = ProfilerSignalHandler; + sigemptyset(&sa.sa_mask); + sa.sa_flags = SA_SIGINFO; + if (sigaction(SIGPROF, &sa, &data_->old_signal_handler_) != 0) return; + data_->signal_handler_installed_ = true; + + // Set the itimer to generate a tick for each interval. + itimerval itimer; + itimer.it_interval.tv_sec = interval_ / 1000; + itimer.it_interval.tv_usec = (interval_ % 1000) * 1000; + itimer.it_value.tv_sec = itimer.it_interval.tv_sec; + itimer.it_value.tv_usec = itimer.it_interval.tv_usec; + setitimer(ITIMER_PROF, &itimer, &data_->old_timer_value_); + + // Set this sampler as the active sampler. + active_sampler_ = this; + active_ = true; +} + + +void Sampler::Stop() { + // Restore old signal handler + if (data_->signal_handler_installed_) { + setitimer(ITIMER_PROF, &data_->old_timer_value_, NULL); + sigaction(SIGPROF, &data_->old_signal_handler_, 0); + data_->signal_handler_installed_ = false; + } + + // This sampler is no longer the active sampler. + active_sampler_ = NULL; + active_ = false; +} + +#endif // ENABLE_LOGGING_AND_PROFILING + +} } // namespace v8::internal ======================================= --- /branches/bleeding_edge/SConstruct Wed Nov 11 01:50:06 2009 +++ /branches/bleeding_edge/SConstruct Wed Dec 2 05:38:50 2009 @@ -149,6 +149,11 @@ 'LIBPATH' : ['/usr/local/lib'], 'CCFLAGS': ['-ansi'], }, + 'os:openbsd': { + 'CPPPATH' : ['/usr/local/include'], + 'LIBPATH' : ['/usr/local/lib'], + 'CCFLAGS': ['-ansi'], + }, 'os:win32': { 'CCFLAGS': ['-DWIN32'], 'CXXFLAGS': ['-DWIN32'], @@ -299,6 +304,9 @@ 'os:freebsd': { 'LIBS': ['execinfo', 'pthread'] }, + 'os:openbsd': { + 'LIBS': ['execinfo', 'pthread'] + }, 'os:win32': { 'LIBS': ['winmm', 'ws2_32'], }, @@ -345,6 +353,9 @@ 'os:freebsd': { 'LIBS': ['execinfo', 'pthread'] }, + 'os:openbsd': { + 'LIBS': ['execinfo', 'pthread'] + }, 'os:win32': { 'LIBS': ['winmm', 'ws2_32'] }, @@ -398,7 +409,11 @@ }, 'os:freebsd': { 'LIBPATH' : ['/usr/local/lib'], - 'LIBS': ['execinfo', 'pthread'] + 'LIBS': ['execinfo', 'pthread'] + }, + 'os:openbsd': { + 'LIBPATH' : ['/usr/local/lib'], + 'LIBS': ['execinfo', 'pthread'] }, 'os:win32': { 'LIBS': ['winmm', 'ws2_32'] @@ -505,6 +520,9 @@ 'os:freebsd': { 'LIBS': ['pthread'], }, + 'os:openbsd': { + 'LIBS': ['pthread'], + }, 'os:android': { 'LIBPATH': [ANDROID_TOP + '/out/target/product/generic/obj/lib'], 'LINKFLAGS': ANDROID_LINKFLAGS, @@ -555,7 +573,7 @@ 'help': 'the toolchain to use (' + TOOLCHAIN_GUESS + ')' }, 'os': { - 'values': ['freebsd', 'linux', 'macos', 'win32', 'android'], + 'values': ['freebsd', 'linux', 'macos', 'win32', 'android', 'openbsd'], 'default': OS_GUESS, 'help': 'the os to build for (' + OS_GUESS + ')' }, ======================================= --- /branches/bleeding_edge/src/SConscript Fri Nov 6 05:48:33 2009 +++ /branches/bleeding_edge/src/SConscript Wed Dec 2 05:38:50 2009 @@ -159,6 +159,7 @@ """), 'simulator:arm': ['arm/simulator-arm.cc'], 'os:freebsd': ['platform-freebsd.cc', 'platform-posix.cc'], + 'os:openbsd': ['platform-openbsd.cc', 'platform-posix.cc'], 'os:linux': ['platform-linux.cc', 'platform-posix.cc'], 'os:android': ['platform-linux.cc', 'platform-posix.cc'], 'os:macos': ['platform-macos.cc', 'platform-posix.cc'], @@ -187,6 +188,9 @@ 'os:freebsd': [ 'd8-posix.cc' ], + 'os:openbsd': [ + 'd8-posix.cc' + ], 'os:win32': [ 'd8-windows.cc' ], ======================================= --- /branches/bleeding_edge/src/dtoa-config.c Thu Jun 25 03:15:50 2009 +++ /branches/bleeding_edge/src/dtoa-config.c Wed Dec 2 05:38:50 2009 @@ -38,7 +38,7 @@ */ #if !(defined(__APPLE__) && defined(__MACH__)) && \ - !defined(WIN32) && !defined(__FreeBSD__) + !defined(WIN32) && !defined(__FreeBSD__) && !defined(__OpenBSD__) #include <endian.h> #endif #include <math.h> @@ -47,14 +47,16 @@ /* The floating point word order on ARM is big endian when floating point * emulation is used, even if the byte order is little endian */ #if !(defined(__APPLE__) && defined(__MACH__)) && !defined(WIN32) && \ - !defined(__FreeBSD__) && __FLOAT_WORD_ORDER == __BIG_ENDIAN + !defined(__FreeBSD__) && !defined(__OpenBSD__) && \ + __FLOAT_WORD_ORDER == __BIG_ENDIAN #define IEEE_MC68k #else #define IEEE_8087 #endif #define __MATH_H__ -#if defined(__APPLE__) && defined(__MACH__) || defined(__FreeBSD__) +#if defined(__APPLE__) && defined(__MACH__) || defined(__FreeBSD__) || \ + defined(__OpenBSD__) /* stdlib.h on FreeBSD and Apple's 10.5 and later SDKs will mangle the * name of strtod. If it's included after strtod is redefined as * gay_strtod, it will mangle the name of gay_strtod, which is ======================================= --- /branches/bleeding_edge/src/platform-posix.cc Fri Oct 23 02:18:19 2009 +++ /branches/bleeding_edge/src/platform-posix.cc Wed Dec 2 05:38:50 2009 @@ -27,7 +27,7 @@ // Platform specific code for POSIX goes here. This is not a platform on its // own but contains the parts which are the same across POSIX platforms Linux, -// Mac OS and FreeBSD. +// Mac OS, FreeBSD and OpenBSD. #include <unistd.h> #include <errno.h> ======================================= --- /branches/bleeding_edge/tools/gyp/v8.gyp Tue Nov 24 03:08:06 2009 +++ /branches/bleeding_edge/tools/gyp/v8.gyp Wed Dec 2 05:38:50 2009 @@ -505,6 +505,17 @@ '../../src/platform-posix.cc' ], } + ], + ['OS=="openbsd"', { + 'link_settings': { + 'libraries': [ + '-L/usr/local/lib -lexecinfo', + ]}, + 'sources': [ + '../../src/platform-openbsd.cc', + '../../src/platform-posix.cc' + ], + } ], ['OS=="mac"', { 'sources': [ ======================================= --- /branches/bleeding_edge/tools/utils.py Fri Nov 21 02:06:29 2008 +++ /branches/bleeding_edge/tools/utils.py Wed Dec 2 05:38:50 2009 @@ -55,6 +55,8 @@ return 'win32' elif id == 'FreeBSD': return 'freebsd' + elif id == 'OpenBSD': + return 'openbsd' else: return None -- v8-dev mailing list [email protected] http://groups.google.com/group/v8-dev
