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author | Kate Stone <katherine.stone@apple.com> | 2016-09-06 20:57:50 +0000 |
---|---|---|
committer | Kate Stone <katherine.stone@apple.com> | 2016-09-06 20:57:50 +0000 |
commit | b9c1b51e45b845debb76d8658edabca70ca56079 (patch) | |
tree | dfcb5a13ef2b014202340f47036da383eaee74aa /lldb/source/Host/common/Host.cpp | |
parent | d5aa73376966339caad04013510626ec2e42c760 (diff) | |
download | llvm-b9c1b51e45b845debb76d8658edabca70ca56079.zip llvm-b9c1b51e45b845debb76d8658edabca70ca56079.tar.gz llvm-b9c1b51e45b845debb76d8658edabca70ca56079.tar.bz2 |
*** This commit represents a complete reformatting of the LLDB source code
*** to conform to clang-format’s LLVM style. This kind of mass change has
*** two obvious implications:
Firstly, merging this particular commit into a downstream fork may be a huge
effort. Alternatively, it may be worth merging all changes up to this commit,
performing the same reformatting operation locally, and then discarding the
merge for this particular commit. The commands used to accomplish this
reformatting were as follows (with current working directory as the root of
the repository):
find . \( -iname "*.c" -or -iname "*.cpp" -or -iname "*.h" -or -iname "*.mm" \) -exec clang-format -i {} +
find . -iname "*.py" -exec autopep8 --in-place --aggressive --aggressive {} + ;
The version of clang-format used was 3.9.0, and autopep8 was 1.2.4.
Secondly, “blame” style tools will generally point to this commit instead of
a meaningful prior commit. There are alternatives available that will attempt
to look through this change and find the appropriate prior commit. YMMV.
llvm-svn: 280751
Diffstat (limited to 'lldb/source/Host/common/Host.cpp')
-rw-r--r-- | lldb/source/Host/common/Host.cpp | 1531 |
1 files changed, 744 insertions, 787 deletions
diff --git a/lldb/source/Host/common/Host.cpp b/lldb/source/Host/common/Host.cpp index c5dd105..bd85c98 100644 --- a/lldb/source/Host/common/Host.cpp +++ b/lldb/source/Host/common/Host.cpp @@ -13,29 +13,30 @@ #include <stdlib.h> #include <sys/types.h> #ifndef _WIN32 -#include <unistd.h> #include <dlfcn.h> #include <grp.h> #include <netdb.h> #include <pwd.h> #include <sys/stat.h> +#include <unistd.h> #endif -#if defined (__APPLE__) -#include <mach/mach_port.h> -#include <mach/mach_init.h> +#if defined(__APPLE__) #include <mach-o/dyld.h> +#include <mach/mach_init.h> +#include <mach/mach_port.h> #endif -#if defined (__linux__) || defined (__FreeBSD__) || defined (__FreeBSD_kernel__) || defined (__APPLE__) || defined(__NetBSD__) +#if defined(__linux__) || defined(__FreeBSD__) || \ + defined(__FreeBSD_kernel__) || defined(__APPLE__) || defined(__NetBSD__) #if !defined(__ANDROID__) && !defined(__ANDROID_NDK__) #include <spawn.h> #endif -#include <sys/wait.h> #include <sys/syscall.h> +#include <sys/wait.h> #endif -#if defined (__FreeBSD__) +#if defined(__FreeBSD__) #include <pthread_np.h> #endif @@ -44,25 +45,25 @@ // Other libraries and framework includes // Project includes -#include "lldb/Host/FileSystem.h" -#include "lldb/Host/Host.h" -#include "lldb/Host/HostInfo.h" #include "lldb/Core/ArchSpec.h" #include "lldb/Core/Error.h" #include "lldb/Core/Log.h" #include "lldb/Host/FileSpec.h" +#include "lldb/Host/FileSystem.h" +#include "lldb/Host/Host.h" +#include "lldb/Host/HostInfo.h" #include "lldb/Host/HostProcess.h" #include "lldb/Host/MonitoringProcessLauncher.h" #include "lldb/Host/Predicate.h" #include "lldb/Host/ProcessLauncher.h" #include "lldb/Host/ThreadLauncher.h" -#include "lldb/lldb-private-forward.h" -#include "llvm/Support/FileSystem.h" #include "lldb/Target/FileAction.h" #include "lldb/Target/ProcessLaunchInfo.h" #include "lldb/Target/UnixSignals.h" #include "lldb/Utility/CleanUp.h" +#include "lldb/lldb-private-forward.h" #include "llvm/ADT/SmallString.h" +#include "llvm/Support/FileSystem.h" #if defined(_WIN32) #include "lldb/Host/windows/ProcessLauncherWindows.h" @@ -72,15 +73,14 @@ #include "lldb/Host/posix/ProcessLauncherPosix.h" #endif -#if defined (__APPLE__) +#if defined(__APPLE__) #ifndef _POSIX_SPAWN_DISABLE_ASLR -#define _POSIX_SPAWN_DISABLE_ASLR 0x0100 +#define _POSIX_SPAWN_DISABLE_ASLR 0x0100 #endif -extern "C" -{ - int __pthread_chdir(const char *path); - int __pthread_fchdir (int fildes); +extern "C" { +int __pthread_chdir(const char *path); +int __pthread_fchdir(int fildes); } #endif @@ -88,30 +88,30 @@ extern "C" using namespace lldb; using namespace lldb_private; -#if !defined (__APPLE__) && !defined (_WIN32) -struct MonitorInfo -{ - lldb::pid_t pid; // The process ID to monitor - Host::MonitorChildProcessCallback callback; // The callback function to call when "pid" exits or signals - bool monitor_signals; // If true, call the callback when "pid" gets signaled. +#if !defined(__APPLE__) && !defined(_WIN32) +struct MonitorInfo { + lldb::pid_t pid; // The process ID to monitor + Host::MonitorChildProcessCallback + callback; // The callback function to call when "pid" exits or signals + bool monitor_signals; // If true, call the callback when "pid" gets signaled. }; -static thread_result_t -MonitorChildProcessThreadFunction (void *arg); +static thread_result_t MonitorChildProcessThreadFunction(void *arg); -HostThread -Host::StartMonitoringChildProcess(const Host::MonitorChildProcessCallback &callback, lldb::pid_t pid, - bool monitor_signals) -{ - MonitorInfo * info_ptr = new MonitorInfo(); - - info_ptr->pid = pid; - info_ptr->callback = callback; - info_ptr->monitor_signals = monitor_signals; - - char thread_name[256]; - ::snprintf(thread_name, sizeof(thread_name), "<lldb.host.wait4(pid=%" PRIu64 ")>", pid); - return ThreadLauncher::LaunchThread(thread_name, MonitorChildProcessThreadFunction, info_ptr, NULL); +HostThread Host::StartMonitoringChildProcess( + const Host::MonitorChildProcessCallback &callback, lldb::pid_t pid, + bool monitor_signals) { + MonitorInfo *info_ptr = new MonitorInfo(); + + info_ptr->pid = pid; + info_ptr->callback = callback; + info_ptr->monitor_signals = monitor_signals; + + char thread_name[256]; + ::snprintf(thread_name, sizeof(thread_name), + "<lldb.host.wait4(pid=%" PRIu64 ")>", pid); + return ThreadLauncher::LaunchThread( + thread_name, MonitorChildProcessThreadFunction, info_ptr, NULL); } #ifndef __linux__ @@ -120,26 +120,24 @@ Host::StartMonitoringChildProcess(const Host::MonitorChildProcessCallback &callb // constructed, and exception safely restore the previous value it // when it goes out of scope. //------------------------------------------------------------------ -class ScopedPThreadCancelDisabler -{ +class ScopedPThreadCancelDisabler { public: - ScopedPThreadCancelDisabler() - { - // Disable the ability for this thread to be cancelled - int err = ::pthread_setcancelstate (PTHREAD_CANCEL_DISABLE, &m_old_state); - if (err != 0) - m_old_state = -1; - } + ScopedPThreadCancelDisabler() { + // Disable the ability for this thread to be cancelled + int err = ::pthread_setcancelstate(PTHREAD_CANCEL_DISABLE, &m_old_state); + if (err != 0) + m_old_state = -1; + } + + ~ScopedPThreadCancelDisabler() { + // Restore the ability for this thread to be cancelled to what it + // previously was. + if (m_old_state != -1) + ::pthread_setcancelstate(m_old_state, 0); + } - ~ScopedPThreadCancelDisabler() - { - // Restore the ability for this thread to be cancelled to what it - // previously was. - if (m_old_state != -1) - ::pthread_setcancelstate (m_old_state, 0); - } private: - int m_old_state; // Save the old cancelability state. + int m_old_state; // Save the old cancelability state. }; #endif // __linux__ @@ -150,279 +148,275 @@ static __thread volatile sig_atomic_t g_usr1_called; static thread_local volatile sig_atomic_t g_usr1_called; #endif -static void -SigUsr1Handler (int) -{ - g_usr1_called = 1; -} +static void SigUsr1Handler(int) { g_usr1_called = 1; } #endif // __linux__ -static bool -CheckForMonitorCancellation() -{ +static bool CheckForMonitorCancellation() { #ifdef __linux__ - if (g_usr1_called) - { - g_usr1_called = 0; - return true; - } + if (g_usr1_called) { + g_usr1_called = 0; + return true; + } #else - ::pthread_testcancel (); + ::pthread_testcancel(); #endif - return false; + return false; } -static thread_result_t -MonitorChildProcessThreadFunction (void *arg) -{ - Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_PROCESS)); - const char *function = __FUNCTION__; - if (log) - log->Printf ("%s (arg = %p) thread starting...", function, arg); +static thread_result_t MonitorChildProcessThreadFunction(void *arg) { + Log *log(lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_PROCESS)); + const char *function = __FUNCTION__; + if (log) + log->Printf("%s (arg = %p) thread starting...", function, arg); - MonitorInfo *info = (MonitorInfo *)arg; + MonitorInfo *info = (MonitorInfo *)arg; - const Host::MonitorChildProcessCallback callback = info->callback; - const bool monitor_signals = info->monitor_signals; + const Host::MonitorChildProcessCallback callback = info->callback; + const bool monitor_signals = info->monitor_signals; - assert (info->pid <= UINT32_MAX); - const ::pid_t pid = monitor_signals ? -1 * getpgid(info->pid) : info->pid; + assert(info->pid <= UINT32_MAX); + const ::pid_t pid = monitor_signals ? -1 * getpgid(info->pid) : info->pid; - delete info; + delete info; - int status = -1; -#if defined (__FreeBSD__) || defined (__FreeBSD_kernel__) - #define __WALL 0 + int status = -1; +#if defined(__FreeBSD__) || defined(__FreeBSD_kernel__) +#define __WALL 0 #endif - const int options = __WALL; + const int options = __WALL; #ifdef __linux__ - // This signal is only used to interrupt the thread from waitpid - struct sigaction sigUsr1Action; - memset(&sigUsr1Action, 0, sizeof(sigUsr1Action)); - sigUsr1Action.sa_handler = SigUsr1Handler; - ::sigaction(SIGUSR1, &sigUsr1Action, nullptr); -#endif // __linux__ - - while (1) - { - log = lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_PROCESS); - if (log) - log->Printf("%s ::waitpid (pid = %" PRIi32 ", &status, options = %i)...", function, pid, options); + // This signal is only used to interrupt the thread from waitpid + struct sigaction sigUsr1Action; + memset(&sigUsr1Action, 0, sizeof(sigUsr1Action)); + sigUsr1Action.sa_handler = SigUsr1Handler; + ::sigaction(SIGUSR1, &sigUsr1Action, nullptr); +#endif // __linux__ - if (CheckForMonitorCancellation ()) - break; + while (1) { + log = lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_PROCESS); + if (log) + log->Printf("%s ::waitpid (pid = %" PRIi32 ", &status, options = %i)...", + function, pid, options); - // Get signals from all children with same process group of pid - const ::pid_t wait_pid = ::waitpid (pid, &status, options); + if (CheckForMonitorCancellation()) + break; - if (CheckForMonitorCancellation ()) - break; + // Get signals from all children with same process group of pid + const ::pid_t wait_pid = ::waitpid(pid, &status, options); - if (wait_pid == -1) - { - if (errno == EINTR) - continue; - else - { - if (log) - log->Printf ("%s (arg = %p) thread exiting because waitpid failed (%s)...", __FUNCTION__, arg, strerror(errno)); - break; - } + if (CheckForMonitorCancellation()) + break; + + if (wait_pid == -1) { + if (errno == EINTR) + continue; + else { + if (log) + log->Printf( + "%s (arg = %p) thread exiting because waitpid failed (%s)...", + __FUNCTION__, arg, strerror(errno)); + break; + } + } else if (wait_pid > 0) { + bool exited = false; + int signal = 0; + int exit_status = 0; + const char *status_cstr = NULL; + if (WIFSTOPPED(status)) { + signal = WSTOPSIG(status); + status_cstr = "STOPPED"; + } else if (WIFEXITED(status)) { + exit_status = WEXITSTATUS(status); + status_cstr = "EXITED"; + exited = true; + } else if (WIFSIGNALED(status)) { + signal = WTERMSIG(status); + status_cstr = "SIGNALED"; + if (wait_pid == abs(pid)) { + exited = true; + exit_status = -1; } - else if (wait_pid > 0) - { - bool exited = false; - int signal = 0; - int exit_status = 0; - const char *status_cstr = NULL; - if (WIFSTOPPED(status)) - { - signal = WSTOPSIG(status); - status_cstr = "STOPPED"; - } - else if (WIFEXITED(status)) - { - exit_status = WEXITSTATUS(status); - status_cstr = "EXITED"; - exited = true; - } - else if (WIFSIGNALED(status)) - { - signal = WTERMSIG(status); - status_cstr = "SIGNALED"; - if (wait_pid == abs(pid)) { - exited = true; - exit_status = -1; - } - } - else - { - status_cstr = "(\?\?\?)"; - } - - // Scope for pthread_cancel_disabler - { + } else { + status_cstr = "(\?\?\?)"; + } + + // Scope for pthread_cancel_disabler + { #ifndef __linux__ - ScopedPThreadCancelDisabler pthread_cancel_disabler; + ScopedPThreadCancelDisabler pthread_cancel_disabler; #endif - log = lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_PROCESS); - if (log) - log->Printf ("%s ::waitpid (pid = %" PRIi32 ", &status, options = %i) => pid = %" PRIi32 ", status = 0x%8.8x (%s), signal = %i, exit_state = %i", - function, - pid, - options, - wait_pid, - status, - status_cstr, - signal, - exit_status); - - if (exited || (signal != 0 && monitor_signals)) - { - bool callback_return = false; - if (callback) - callback_return = callback(wait_pid, exited, signal, exit_status); - - // If our process exited, then this thread should exit - if (exited && wait_pid == abs(pid)) - { - if (log) - log->Printf ("%s (arg = %p) thread exiting because pid received exit signal...", __FUNCTION__, arg); - break; - } - // If the callback returns true, it means this process should - // exit - if (callback_return) - { - if (log) - log->Printf ("%s (arg = %p) thread exiting because callback returned true...", __FUNCTION__, arg); - break; - } - } - } + log = lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_PROCESS); + if (log) + log->Printf("%s ::waitpid (pid = %" PRIi32 + ", &status, options = %i) => pid = %" PRIi32 + ", status = 0x%8.8x (%s), signal = %i, exit_state = %i", + function, pid, options, wait_pid, status, status_cstr, + signal, exit_status); + + if (exited || (signal != 0 && monitor_signals)) { + bool callback_return = false; + if (callback) + callback_return = callback(wait_pid, exited, signal, exit_status); + + // If our process exited, then this thread should exit + if (exited && wait_pid == abs(pid)) { + if (log) + log->Printf("%s (arg = %p) thread exiting because pid received " + "exit signal...", + __FUNCTION__, arg); + break; + } + // If the callback returns true, it means this process should + // exit + if (callback_return) { + if (log) + log->Printf("%s (arg = %p) thread exiting because callback " + "returned true...", + __FUNCTION__, arg); + break; + } } + } } + } - log = lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_PROCESS); - if (log) - log->Printf ("%s (arg = %p) thread exiting...", __FUNCTION__, arg); + log = lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_PROCESS); + if (log) + log->Printf("%s (arg = %p) thread exiting...", __FUNCTION__, arg); - return NULL; + return NULL; } #endif // #if !defined (__APPLE__) && !defined (_WIN32) -#if !defined (__APPLE__) +#if !defined(__APPLE__) -void -Host::SystemLog (SystemLogType type, const char *format, va_list args) -{ - vfprintf (stderr, format, args); +void Host::SystemLog(SystemLogType type, const char *format, va_list args) { + vfprintf(stderr, format, args); } #endif -void -Host::SystemLog (SystemLogType type, const char *format, ...) -{ - va_list args; - va_start (args, format); - SystemLog (type, format, args); - va_end (args); +void Host::SystemLog(SystemLogType type, const char *format, ...) { + va_list args; + va_start(args, format); + SystemLog(type, format, args); + va_end(args); } -lldb::pid_t -Host::GetCurrentProcessID() -{ - return ::getpid(); -} +lldb::pid_t Host::GetCurrentProcessID() { return ::getpid(); } #ifndef _WIN32 -lldb::tid_t -Host::GetCurrentThreadID() -{ -#if defined (__APPLE__) - // Calling "mach_thread_self()" bumps the reference count on the thread - // port, so we need to deallocate it. mach_task_self() doesn't bump the ref - // count. - thread_port_t thread_self = mach_thread_self(); - mach_port_deallocate(mach_task_self(), thread_self); - return thread_self; +lldb::tid_t Host::GetCurrentThreadID() { +#if defined(__APPLE__) + // Calling "mach_thread_self()" bumps the reference count on the thread + // port, so we need to deallocate it. mach_task_self() doesn't bump the ref + // count. + thread_port_t thread_self = mach_thread_self(); + mach_port_deallocate(mach_task_self(), thread_self); + return thread_self; #elif defined(__FreeBSD__) - return lldb::tid_t(pthread_getthreadid_np()); + return lldb::tid_t(pthread_getthreadid_np()); #elif defined(__ANDROID_NDK__) - return lldb::tid_t(gettid()); + return lldb::tid_t(gettid()); #elif defined(__linux__) - return lldb::tid_t(syscall(SYS_gettid)); + return lldb::tid_t(syscall(SYS_gettid)); #else - return lldb::tid_t(pthread_self()); + return lldb::tid_t(pthread_self()); #endif } -lldb::thread_t -Host::GetCurrentThread () -{ - return lldb::thread_t(pthread_self()); +lldb::thread_t Host::GetCurrentThread() { + return lldb::thread_t(pthread_self()); } -const char * -Host::GetSignalAsCString (int signo) -{ - switch (signo) - { - case SIGHUP: return "SIGHUP"; // 1 hangup - case SIGINT: return "SIGINT"; // 2 interrupt - case SIGQUIT: return "SIGQUIT"; // 3 quit - case SIGILL: return "SIGILL"; // 4 illegal instruction (not reset when caught) - case SIGTRAP: return "SIGTRAP"; // 5 trace trap (not reset when caught) - case SIGABRT: return "SIGABRT"; // 6 abort() -#if defined(SIGPOLL) +const char *Host::GetSignalAsCString(int signo) { + switch (signo) { + case SIGHUP: + return "SIGHUP"; // 1 hangup + case SIGINT: + return "SIGINT"; // 2 interrupt + case SIGQUIT: + return "SIGQUIT"; // 3 quit + case SIGILL: + return "SIGILL"; // 4 illegal instruction (not reset when caught) + case SIGTRAP: + return "SIGTRAP"; // 5 trace trap (not reset when caught) + case SIGABRT: + return "SIGABRT"; // 6 abort() +#if defined(SIGPOLL) #if !defined(SIGIO) || (SIGPOLL != SIGIO) -// Under some GNU/Linux, SIGPOLL and SIGIO are the same. Causing the build to -// fail with 'multiple define cases with same value' - case SIGPOLL: return "SIGPOLL"; // 7 pollable event ([XSR] generated, not supported) -#endif -#endif -#if defined(SIGEMT) - case SIGEMT: return "SIGEMT"; // 7 EMT instruction -#endif - case SIGFPE: return "SIGFPE"; // 8 floating point exception - case SIGKILL: return "SIGKILL"; // 9 kill (cannot be caught or ignored) - case SIGBUS: return "SIGBUS"; // 10 bus error - case SIGSEGV: return "SIGSEGV"; // 11 segmentation violation - case SIGSYS: return "SIGSYS"; // 12 bad argument to system call - case SIGPIPE: return "SIGPIPE"; // 13 write on a pipe with no one to read it - case SIGALRM: return "SIGALRM"; // 14 alarm clock - case SIGTERM: return "SIGTERM"; // 15 software termination signal from kill - case SIGURG: return "SIGURG"; // 16 urgent condition on IO channel - case SIGSTOP: return "SIGSTOP"; // 17 sendable stop signal not from tty - case SIGTSTP: return "SIGTSTP"; // 18 stop signal from tty - case SIGCONT: return "SIGCONT"; // 19 continue a stopped process - case SIGCHLD: return "SIGCHLD"; // 20 to parent on child stop or exit - case SIGTTIN: return "SIGTTIN"; // 21 to readers pgrp upon background tty read - case SIGTTOU: return "SIGTTOU"; // 22 like TTIN for output if (tp->t_local<OSTOP) -#if defined(SIGIO) - case SIGIO: return "SIGIO"; // 23 input/output possible signal -#endif - case SIGXCPU: return "SIGXCPU"; // 24 exceeded CPU time limit - case SIGXFSZ: return "SIGXFSZ"; // 25 exceeded file size limit - case SIGVTALRM: return "SIGVTALRM"; // 26 virtual time alarm - case SIGPROF: return "SIGPROF"; // 27 profiling time alarm -#if defined(SIGWINCH) - case SIGWINCH: return "SIGWINCH"; // 28 window size changes -#endif -#if defined(SIGINFO) - case SIGINFO: return "SIGINFO"; // 29 information request -#endif - case SIGUSR1: return "SIGUSR1"; // 30 user defined signal 1 - case SIGUSR2: return "SIGUSR2"; // 31 user defined signal 2 - default: - break; - } - return NULL; + // Under some GNU/Linux, SIGPOLL and SIGIO are the same. Causing the build to + // fail with 'multiple define cases with same value' + case SIGPOLL: + return "SIGPOLL"; // 7 pollable event ([XSR] generated, not supported) +#endif +#endif +#if defined(SIGEMT) + case SIGEMT: + return "SIGEMT"; // 7 EMT instruction +#endif + case SIGFPE: + return "SIGFPE"; // 8 floating point exception + case SIGKILL: + return "SIGKILL"; // 9 kill (cannot be caught or ignored) + case SIGBUS: + return "SIGBUS"; // 10 bus error + case SIGSEGV: + return "SIGSEGV"; // 11 segmentation violation + case SIGSYS: + return "SIGSYS"; // 12 bad argument to system call + case SIGPIPE: + return "SIGPIPE"; // 13 write on a pipe with no one to read it + case SIGALRM: + return "SIGALRM"; // 14 alarm clock + case SIGTERM: + return "SIGTERM"; // 15 software termination signal from kill + case SIGURG: + return "SIGURG"; // 16 urgent condition on IO channel + case SIGSTOP: + return "SIGSTOP"; // 17 sendable stop signal not from tty + case SIGTSTP: + return "SIGTSTP"; // 18 stop signal from tty + case SIGCONT: + return "SIGCONT"; // 19 continue a stopped process + case SIGCHLD: + return "SIGCHLD"; // 20 to parent on child stop or exit + case SIGTTIN: + return "SIGTTIN"; // 21 to readers pgrp upon background tty read + case SIGTTOU: + return "SIGTTOU"; // 22 like TTIN for output if (tp->t_local<OSTOP) +#if defined(SIGIO) + case SIGIO: + return "SIGIO"; // 23 input/output possible signal +#endif + case SIGXCPU: + return "SIGXCPU"; // 24 exceeded CPU time limit + case SIGXFSZ: + return "SIGXFSZ"; // 25 exceeded file size limit + case SIGVTALRM: + return "SIGVTALRM"; // 26 virtual time alarm + case SIGPROF: + return "SIGPROF"; // 27 profiling time alarm +#if defined(SIGWINCH) + case SIGWINCH: + return "SIGWINCH"; // 28 window size changes +#endif +#if defined(SIGINFO) + case SIGINFO: + return "SIGINFO"; // 29 information request +#endif + case SIGUSR1: + return "SIGUSR1"; // 30 user defined signal 1 + case SIGUSR2: + return "SIGUSR2"; // 31 user defined signal 2 + default: + break; + } + return NULL; } #endif @@ -430,84 +424,63 @@ Host::GetSignalAsCString (int signo) #ifndef _WIN32 lldb::thread_key_t -Host::ThreadLocalStorageCreate(ThreadLocalStorageCleanupCallback callback) -{ - pthread_key_t key; - ::pthread_key_create (&key, callback); - return key; +Host::ThreadLocalStorageCreate(ThreadLocalStorageCleanupCallback callback) { + pthread_key_t key; + ::pthread_key_create(&key, callback); + return key; } -void* -Host::ThreadLocalStorageGet(lldb::thread_key_t key) -{ - return ::pthread_getspecific (key); +void *Host::ThreadLocalStorageGet(lldb::thread_key_t key) { + return ::pthread_getspecific(key); } -void -Host::ThreadLocalStorageSet(lldb::thread_key_t key, void *value) -{ - ::pthread_setspecific (key, value); +void Host::ThreadLocalStorageSet(lldb::thread_key_t key, void *value) { + ::pthread_setspecific(key, value); } #endif -#if !defined (__APPLE__) // see Host.mm +#if !defined(__APPLE__) // see Host.mm -bool -Host::GetBundleDirectory (const FileSpec &file, FileSpec &bundle) -{ - bundle.Clear(); - return false; +bool Host::GetBundleDirectory(const FileSpec &file, FileSpec &bundle) { + bundle.Clear(); + return false; } -bool -Host::ResolveExecutableInBundle (FileSpec &file) -{ - return false; -} +bool Host::ResolveExecutableInBundle(FileSpec &file) { return false; } #endif #ifndef _WIN32 -FileSpec -Host::GetModuleFileSpecForHostAddress (const void *host_addr) -{ - FileSpec module_filespec; +FileSpec Host::GetModuleFileSpecForHostAddress(const void *host_addr) { + FileSpec module_filespec; #if !defined(__ANDROID__) && !defined(__ANDROID_NDK__) - Dl_info info; - if (::dladdr (host_addr, &info)) - { - if (info.dli_fname) - module_filespec.SetFile(info.dli_fname, true); - } + Dl_info info; + if (::dladdr(host_addr, &info)) { + if (info.dli_fname) + module_filespec.SetFile(info.dli_fname, true); + } #endif - return module_filespec; + return module_filespec; } #endif #if !defined(__linux__) -bool -Host::FindProcessThreads (const lldb::pid_t pid, TidMap &tids_to_attach) -{ - return false; +bool Host::FindProcessThreads(const lldb::pid_t pid, TidMap &tids_to_attach) { + return false; } #endif -struct ShellInfo -{ - ShellInfo () : - process_reaped (false), - pid (LLDB_INVALID_PROCESS_ID), - signo(-1), - status(-1) - { - } +struct ShellInfo { + ShellInfo() + : process_reaped(false), pid(LLDB_INVALID_PROCESS_ID), signo(-1), + status(-1) {} - lldb_private::Predicate<bool> process_reaped; - lldb::pid_t pid; - int signo; - int status; + lldb_private::Predicate<bool> process_reaped; + lldb::pid_t pid; + int signo; + int status; }; static bool @@ -516,540 +489,524 @@ MonitorShellCommand(std::shared_ptr<ShellInfo> shell_info, lldb::pid_t pid, int signo, // Zero for no signal int status) // Exit value of process if signal is zero { - shell_info->pid = pid; - shell_info->signo = signo; - shell_info->status = status; - // Let the thread running Host::RunShellCommand() know that the process - // exited and that ShellInfo has been filled in by broadcasting to it - shell_info->process_reaped.SetValue(true, eBroadcastAlways); - return true; + shell_info->pid = pid; + shell_info->signo = signo; + shell_info->status = status; + // Let the thread running Host::RunShellCommand() know that the process + // exited and that ShellInfo has been filled in by broadcasting to it + shell_info->process_reaped.SetValue(true, eBroadcastAlways); + return true; } -Error -Host::RunShellCommand(const char *command, - const FileSpec &working_dir, - int *status_ptr, - int *signo_ptr, - std::string *command_output_ptr, - uint32_t timeout_sec, - bool run_in_default_shell) -{ - return RunShellCommand(Args(command), working_dir, status_ptr, signo_ptr, command_output_ptr, timeout_sec, run_in_default_shell); +Error Host::RunShellCommand(const char *command, const FileSpec &working_dir, + int *status_ptr, int *signo_ptr, + std::string *command_output_ptr, + uint32_t timeout_sec, bool run_in_default_shell) { + return RunShellCommand(Args(command), working_dir, status_ptr, signo_ptr, + command_output_ptr, timeout_sec, run_in_default_shell); } -Error -Host::RunShellCommand(const Args &args, - const FileSpec &working_dir, - int *status_ptr, - int *signo_ptr, - std::string *command_output_ptr, - uint32_t timeout_sec, - bool run_in_default_shell) -{ - Error error; - ProcessLaunchInfo launch_info; - launch_info.SetArchitecture(HostInfo::GetArchitecture()); - if (run_in_default_shell) - { - // Run the command in a shell - launch_info.SetShell(HostInfo::GetDefaultShell()); - launch_info.GetArguments().AppendArguments(args); - const bool localhost = true; - const bool will_debug = false; - const bool first_arg_is_full_shell_command = false; - launch_info.ConvertArgumentsForLaunchingInShell (error, - localhost, - will_debug, - first_arg_is_full_shell_command, - 0); - } - else - { - // No shell, just run it - const bool first_arg_is_executable = true; - launch_info.SetArguments(args, first_arg_is_executable); +Error Host::RunShellCommand(const Args &args, const FileSpec &working_dir, + int *status_ptr, int *signo_ptr, + std::string *command_output_ptr, + uint32_t timeout_sec, bool run_in_default_shell) { + Error error; + ProcessLaunchInfo launch_info; + launch_info.SetArchitecture(HostInfo::GetArchitecture()); + if (run_in_default_shell) { + // Run the command in a shell + launch_info.SetShell(HostInfo::GetDefaultShell()); + launch_info.GetArguments().AppendArguments(args); + const bool localhost = true; + const bool will_debug = false; + const bool first_arg_is_full_shell_command = false; + launch_info.ConvertArgumentsForLaunchingInShell( + error, localhost, will_debug, first_arg_is_full_shell_command, 0); + } else { + // No shell, just run it + const bool first_arg_is_executable = true; + launch_info.SetArguments(args, first_arg_is_executable); + } + + if (working_dir) + launch_info.SetWorkingDirectory(working_dir); + llvm::SmallString<PATH_MAX> output_file_path; + + if (command_output_ptr) { + // Create a temporary file to get the stdout/stderr and redirect the + // output of the command into this file. We will later read this file + // if all goes well and fill the data into "command_output_ptr" + FileSpec tmpdir_file_spec; + if (HostInfo::GetLLDBPath(ePathTypeLLDBTempSystemDir, tmpdir_file_spec)) { + tmpdir_file_spec.AppendPathComponent("lldb-shell-output.%%%%%%"); + llvm::sys::fs::createUniqueFile(tmpdir_file_spec.GetPath().c_str(), + output_file_path); + } else { + llvm::sys::fs::createTemporaryFile("lldb-shell-output.%%%%%%", "", + output_file_path); } - - if (working_dir) - launch_info.SetWorkingDirectory(working_dir); - llvm::SmallString<PATH_MAX> output_file_path; - - if (command_output_ptr) - { - // Create a temporary file to get the stdout/stderr and redirect the - // output of the command into this file. We will later read this file - // if all goes well and fill the data into "command_output_ptr" - FileSpec tmpdir_file_spec; - if (HostInfo::GetLLDBPath(ePathTypeLLDBTempSystemDir, tmpdir_file_spec)) - { - tmpdir_file_spec.AppendPathComponent("lldb-shell-output.%%%%%%"); - llvm::sys::fs::createUniqueFile(tmpdir_file_spec.GetPath().c_str(), output_file_path); - } - else - { - llvm::sys::fs::createTemporaryFile("lldb-shell-output.%%%%%%", "", output_file_path); + } + + FileSpec output_file_spec{output_file_path.c_str(), false}; + + launch_info.AppendSuppressFileAction(STDIN_FILENO, true, false); + if (output_file_spec) { + launch_info.AppendOpenFileAction(STDOUT_FILENO, output_file_spec, false, + true); + launch_info.AppendDuplicateFileAction(STDOUT_FILENO, STDERR_FILENO); + } else { + launch_info.AppendSuppressFileAction(STDOUT_FILENO, false, true); + launch_info.AppendSuppressFileAction(STDERR_FILENO, false, true); + } + + std::shared_ptr<ShellInfo> shell_info_sp(new ShellInfo()); + const bool monitor_signals = false; + launch_info.SetMonitorProcessCallback( + std::bind(MonitorShellCommand, shell_info_sp, std::placeholders::_1, + std::placeholders::_2, std::placeholders::_3, + std::placeholders::_4), + monitor_signals); + + error = LaunchProcess(launch_info); + const lldb::pid_t pid = launch_info.GetProcessID(); + + if (error.Success() && pid == LLDB_INVALID_PROCESS_ID) + error.SetErrorString("failed to get process ID"); + + if (error.Success()) { + bool timed_out = false; + shell_info_sp->process_reaped.WaitForValueEqualTo( + true, std::chrono::seconds(timeout_sec), &timed_out); + if (timed_out) { + error.SetErrorString("timed out waiting for shell command to complete"); + + // Kill the process since it didn't complete within the timeout specified + Kill(pid, SIGKILL); + // Wait for the monitor callback to get the message + timed_out = false; + shell_info_sp->process_reaped.WaitForValueEqualTo( + true, std::chrono::seconds(1), &timed_out); + } else { + if (status_ptr) + *status_ptr = shell_info_sp->status; + + if (signo_ptr) + *signo_ptr = shell_info_sp->signo; + + if (command_output_ptr) { + command_output_ptr->clear(); + uint64_t file_size = output_file_spec.GetByteSize(); + if (file_size > 0) { + if (file_size > command_output_ptr->max_size()) { + error.SetErrorStringWithFormat( + "shell command output is too large to fit into a std::string"); + } else { + std::vector<char> command_output(file_size); + output_file_spec.ReadFileContents(0, command_output.data(), + file_size, &error); + if (error.Success()) + command_output_ptr->assign(command_output.data(), file_size); + } } + } } + } - FileSpec output_file_spec{output_file_path.c_str(), false}; - - launch_info.AppendSuppressFileAction (STDIN_FILENO, true, false); - if (output_file_spec) - { - launch_info.AppendOpenFileAction(STDOUT_FILENO, output_file_spec, false, true); - launch_info.AppendDuplicateFileAction(STDOUT_FILENO, STDERR_FILENO); - } - else - { - launch_info.AppendSuppressFileAction (STDOUT_FILENO, false, true); - launch_info.AppendSuppressFileAction (STDERR_FILENO, false, true); - } - - std::shared_ptr<ShellInfo> shell_info_sp(new ShellInfo()); - const bool monitor_signals = false; - launch_info.SetMonitorProcessCallback(std::bind(MonitorShellCommand, shell_info_sp, std::placeholders::_1, - std::placeholders::_2, std::placeholders::_3, - std::placeholders::_4), - monitor_signals); - - error = LaunchProcess (launch_info); - const lldb::pid_t pid = launch_info.GetProcessID(); - - if (error.Success() && pid == LLDB_INVALID_PROCESS_ID) - error.SetErrorString("failed to get process ID"); - - if (error.Success()) - { - bool timed_out = false; - shell_info_sp->process_reaped.WaitForValueEqualTo(true, std::chrono::seconds(timeout_sec), &timed_out); - if (timed_out) - { - error.SetErrorString("timed out waiting for shell command to complete"); - - // Kill the process since it didn't complete within the timeout specified - Kill (pid, SIGKILL); - // Wait for the monitor callback to get the message - timed_out = false; - shell_info_sp->process_reaped.WaitForValueEqualTo(true, std::chrono::seconds(1), &timed_out); - } - else - { - if (status_ptr) - *status_ptr = shell_info_sp->status; - - if (signo_ptr) - *signo_ptr = shell_info_sp->signo; - - if (command_output_ptr) - { - command_output_ptr->clear(); - uint64_t file_size = output_file_spec.GetByteSize(); - if (file_size > 0) - { - if (file_size > command_output_ptr->max_size()) - { - error.SetErrorStringWithFormat("shell command output is too large to fit into a std::string"); - } - else - { - std::vector<char> command_output(file_size); - output_file_spec.ReadFileContents(0, command_output.data(), file_size, &error); - if (error.Success()) - command_output_ptr->assign(command_output.data(), file_size); - } - } - } - } - } - - if (FileSystem::GetFileExists(output_file_spec)) - FileSystem::Unlink(output_file_spec); - return error; + if (FileSystem::GetFileExists(output_file_spec)) + FileSystem::Unlink(output_file_spec); + return error; } // LaunchProcessPosixSpawn for Apple, Linux, FreeBSD and other GLIBC // systems -#if defined (__APPLE__) || defined (__linux__) || defined (__FreeBSD__) || defined (__GLIBC__) || defined(__NetBSD__) +#if defined(__APPLE__) || defined(__linux__) || defined(__FreeBSD__) || \ + defined(__GLIBC__) || defined(__NetBSD__) #if !defined(__ANDROID__) && !defined(__ANDROID_NDK__) // this method needs to be visible to macosx/Host.cpp and // common/Host.cpp. -short -Host::GetPosixspawnFlags(const ProcessLaunchInfo &launch_info) -{ - short flags = POSIX_SPAWN_SETSIGDEF | POSIX_SPAWN_SETSIGMASK; - -#if defined (__APPLE__) - if (launch_info.GetFlags().Test (eLaunchFlagExec)) - flags |= POSIX_SPAWN_SETEXEC; // Darwin specific posix_spawn flag - - if (launch_info.GetFlags().Test (eLaunchFlagDebug)) - flags |= POSIX_SPAWN_START_SUSPENDED; // Darwin specific posix_spawn flag - - if (launch_info.GetFlags().Test (eLaunchFlagDisableASLR)) - flags |= _POSIX_SPAWN_DISABLE_ASLR; // Darwin specific posix_spawn flag - - if (launch_info.GetLaunchInSeparateProcessGroup()) - flags |= POSIX_SPAWN_SETPGROUP; - +short Host::GetPosixspawnFlags(const ProcessLaunchInfo &launch_info) { + short flags = POSIX_SPAWN_SETSIGDEF | POSIX_SPAWN_SETSIGMASK; + +#if defined(__APPLE__) + if (launch_info.GetFlags().Test(eLaunchFlagExec)) + flags |= POSIX_SPAWN_SETEXEC; // Darwin specific posix_spawn flag + + if (launch_info.GetFlags().Test(eLaunchFlagDebug)) + flags |= POSIX_SPAWN_START_SUSPENDED; // Darwin specific posix_spawn flag + + if (launch_info.GetFlags().Test(eLaunchFlagDisableASLR)) + flags |= _POSIX_SPAWN_DISABLE_ASLR; // Darwin specific posix_spawn flag + + if (launch_info.GetLaunchInSeparateProcessGroup()) + flags |= POSIX_SPAWN_SETPGROUP; + #ifdef POSIX_SPAWN_CLOEXEC_DEFAULT -#if defined (__APPLE__) && (defined (__x86_64__) || defined (__i386__)) - static LazyBool g_use_close_on_exec_flag = eLazyBoolCalculate; - if (g_use_close_on_exec_flag == eLazyBoolCalculate) - { - g_use_close_on_exec_flag = eLazyBoolNo; - - uint32_t major, minor, update; - if (HostInfo::GetOSVersion(major, minor, update)) - { - // Kernel panic if we use the POSIX_SPAWN_CLOEXEC_DEFAULT on 10.7 or earlier - if (major > 10 || (major == 10 && minor > 7)) - { - // Only enable for 10.8 and later OS versions - g_use_close_on_exec_flag = eLazyBoolYes; - } - } +#if defined(__APPLE__) && (defined(__x86_64__) || defined(__i386__)) + static LazyBool g_use_close_on_exec_flag = eLazyBoolCalculate; + if (g_use_close_on_exec_flag == eLazyBoolCalculate) { + g_use_close_on_exec_flag = eLazyBoolNo; + + uint32_t major, minor, update; + if (HostInfo::GetOSVersion(major, minor, update)) { + // Kernel panic if we use the POSIX_SPAWN_CLOEXEC_DEFAULT on 10.7 or + // earlier + if (major > 10 || (major == 10 && minor > 7)) { + // Only enable for 10.8 and later OS versions + g_use_close_on_exec_flag = eLazyBoolYes; + } } + } #else - static LazyBool g_use_close_on_exec_flag = eLazyBoolYes; + static LazyBool g_use_close_on_exec_flag = eLazyBoolYes; #endif - // Close all files exception those with file actions if this is supported. - if (g_use_close_on_exec_flag == eLazyBoolYes) - flags |= POSIX_SPAWN_CLOEXEC_DEFAULT; + // Close all files exception those with file actions if this is supported. + if (g_use_close_on_exec_flag == eLazyBoolYes) + flags |= POSIX_SPAWN_CLOEXEC_DEFAULT; #endif #endif // #if defined (__APPLE__) - return flags; + return flags; } -Error -Host::LaunchProcessPosixSpawn(const char *exe_path, const ProcessLaunchInfo &launch_info, lldb::pid_t &pid) -{ - Error error; - Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_HOST | LIBLLDB_LOG_PROCESS)); +Error Host::LaunchProcessPosixSpawn(const char *exe_path, + const ProcessLaunchInfo &launch_info, + lldb::pid_t &pid) { + Error error; + Log *log(lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_HOST | + LIBLLDB_LOG_PROCESS)); - posix_spawnattr_t attr; - error.SetError( ::posix_spawnattr_init (&attr), eErrorTypePOSIX); + posix_spawnattr_t attr; + error.SetError(::posix_spawnattr_init(&attr), eErrorTypePOSIX); - if (error.Fail() || log) - error.PutToLog(log, "::posix_spawnattr_init ( &attr )"); - if (error.Fail()) - return error; + if (error.Fail() || log) + error.PutToLog(log, "::posix_spawnattr_init ( &attr )"); + if (error.Fail()) + return error; - // Make a quick class that will cleanup the posix spawn attributes in case - // we return in the middle of this function. - lldb_utility::CleanUp <posix_spawnattr_t *, int> posix_spawnattr_cleanup(&attr, posix_spawnattr_destroy); - - sigset_t no_signals; - sigset_t all_signals; - sigemptyset (&no_signals); - sigfillset (&all_signals); - ::posix_spawnattr_setsigmask(&attr, &no_signals); -#if defined (__linux__) || defined (__FreeBSD__) - ::posix_spawnattr_setsigdefault(&attr, &no_signals); + // Make a quick class that will cleanup the posix spawn attributes in case + // we return in the middle of this function. + lldb_utility::CleanUp<posix_spawnattr_t *, int> posix_spawnattr_cleanup( + &attr, posix_spawnattr_destroy); + + sigset_t no_signals; + sigset_t all_signals; + sigemptyset(&no_signals); + sigfillset(&all_signals); + ::posix_spawnattr_setsigmask(&attr, &no_signals); +#if defined(__linux__) || defined(__FreeBSD__) + ::posix_spawnattr_setsigdefault(&attr, &no_signals); #else - ::posix_spawnattr_setsigdefault(&attr, &all_signals); + ::posix_spawnattr_setsigdefault(&attr, &all_signals); #endif - short flags = GetPosixspawnFlags(launch_info); + short flags = GetPosixspawnFlags(launch_info); - error.SetError( ::posix_spawnattr_setflags (&attr, flags), eErrorTypePOSIX); - if (error.Fail() || log) - error.PutToLog(log, "::posix_spawnattr_setflags ( &attr, flags=0x%8.8x )", flags); - if (error.Fail()) - return error; + error.SetError(::posix_spawnattr_setflags(&attr, flags), eErrorTypePOSIX); + if (error.Fail() || log) + error.PutToLog(log, "::posix_spawnattr_setflags ( &attr, flags=0x%8.8x )", + flags); + if (error.Fail()) + return error; - // posix_spawnattr_setbinpref_np appears to be an Apple extension per: - // http://www.unix.com/man-page/OSX/3/posix_spawnattr_setbinpref_np/ -#if defined (__APPLE__) && !defined (__arm__) - - // Don't set the binpref if a shell was provided. After all, that's only going to affect what version of the shell - // is launched, not what fork of the binary is launched. We insert "arch --arch <ARCH> as part of the shell invocation - // to do that job on OSX. - - if (launch_info.GetShell() == nullptr) +// posix_spawnattr_setbinpref_np appears to be an Apple extension per: +// http://www.unix.com/man-page/OSX/3/posix_spawnattr_setbinpref_np/ +#if defined(__APPLE__) && !defined(__arm__) + + // Don't set the binpref if a shell was provided. After all, that's only + // going to affect what version of the shell + // is launched, not what fork of the binary is launched. We insert "arch + // --arch <ARCH> as part of the shell invocation + // to do that job on OSX. + + if (launch_info.GetShell() == nullptr) { + // We don't need to do this for ARM, and we really shouldn't now that we + // have multiple CPU subtypes and no posix_spawnattr call that allows us + // to set which CPU subtype to launch... + const ArchSpec &arch_spec = launch_info.GetArchitecture(); + cpu_type_t cpu = arch_spec.GetMachOCPUType(); + cpu_type_t sub = arch_spec.GetMachOCPUSubType(); + if (cpu != 0 && cpu != static_cast<cpu_type_t>(UINT32_MAX) && + cpu != static_cast<cpu_type_t>(LLDB_INVALID_CPUTYPE) && + !(cpu == 0x01000007 && sub == 8)) // If haswell is specified, don't try + // to set the CPU type or we will fail { - // We don't need to do this for ARM, and we really shouldn't now that we - // have multiple CPU subtypes and no posix_spawnattr call that allows us - // to set which CPU subtype to launch... - const ArchSpec &arch_spec = launch_info.GetArchitecture(); - cpu_type_t cpu = arch_spec.GetMachOCPUType(); - cpu_type_t sub = arch_spec.GetMachOCPUSubType(); - if (cpu != 0 && - cpu != static_cast<cpu_type_t>(UINT32_MAX) && - cpu != static_cast<cpu_type_t>(LLDB_INVALID_CPUTYPE) && - !(cpu == 0x01000007 && sub == 8)) // If haswell is specified, don't try to set the CPU type or we will fail - { - size_t ocount = 0; - error.SetError( ::posix_spawnattr_setbinpref_np (&attr, 1, &cpu, &ocount), eErrorTypePOSIX); - if (error.Fail() || log) - error.PutToLog(log, "::posix_spawnattr_setbinpref_np ( &attr, 1, cpu_type = 0x%8.8x, count => %llu )", cpu, (uint64_t)ocount); - - if (error.Fail() || ocount != 1) - return error; - } + size_t ocount = 0; + error.SetError(::posix_spawnattr_setbinpref_np(&attr, 1, &cpu, &ocount), + eErrorTypePOSIX); + if (error.Fail() || log) + error.PutToLog(log, "::posix_spawnattr_setbinpref_np ( &attr, 1, " + "cpu_type = 0x%8.8x, count => %llu )", + cpu, (uint64_t)ocount); + + if (error.Fail() || ocount != 1) + return error; } - -#endif - - const char *tmp_argv[2]; - char * const *argv = const_cast<char * const*>(launch_info.GetArguments().GetConstArgumentVector()); - char * const *envp = const_cast<char * const*>(launch_info.GetEnvironmentEntries().GetConstArgumentVector()); - if (argv == NULL) - { - // posix_spawn gets very unhappy if it doesn't have at least the program - // name in argv[0]. One of the side affects I have noticed is the environment - // variables don't make it into the child process if "argv == NULL"!!! - tmp_argv[0] = exe_path; - tmp_argv[1] = NULL; - argv = const_cast<char * const*>(tmp_argv); + } + +#endif + + const char *tmp_argv[2]; + char *const *argv = const_cast<char *const *>( + launch_info.GetArguments().GetConstArgumentVector()); + char *const *envp = const_cast<char *const *>( + launch_info.GetEnvironmentEntries().GetConstArgumentVector()); + if (argv == NULL) { + // posix_spawn gets very unhappy if it doesn't have at least the program + // name in argv[0]. One of the side affects I have noticed is the + // environment + // variables don't make it into the child process if "argv == NULL"!!! + tmp_argv[0] = exe_path; + tmp_argv[1] = NULL; + argv = const_cast<char *const *>(tmp_argv); + } + +#if !defined(__APPLE__) + // manage the working directory + char current_dir[PATH_MAX]; + current_dir[0] = '\0'; +#endif + + FileSpec working_dir{launch_info.GetWorkingDirectory()}; + if (working_dir) { +#if defined(__APPLE__) + // Set the working directory on this thread only + if (__pthread_chdir(working_dir.GetCString()) < 0) { + if (errno == ENOENT) { + error.SetErrorStringWithFormat("No such file or directory: %s", + working_dir.GetCString()); + } else if (errno == ENOTDIR) { + error.SetErrorStringWithFormat("Path doesn't name a directory: %s", + working_dir.GetCString()); + } else { + error.SetErrorStringWithFormat("An unknown error occurred when " + "changing directory for process " + "execution."); + } + return error; } - -#if !defined (__APPLE__) - // manage the working directory - char current_dir[PATH_MAX]; - current_dir[0] = '\0'; -#endif - - FileSpec working_dir{launch_info.GetWorkingDirectory()}; - if (working_dir) - { -#if defined (__APPLE__) - // Set the working directory on this thread only - if (__pthread_chdir(working_dir.GetCString()) < 0) { - if (errno == ENOENT) { - error.SetErrorStringWithFormat("No such file or directory: %s", - working_dir.GetCString()); - } else if (errno == ENOTDIR) { - error.SetErrorStringWithFormat("Path doesn't name a directory: %s", - working_dir.GetCString()); - } else { - error.SetErrorStringWithFormat("An unknown error occurred when changing directory for process execution."); - } - return error; - } #else - if (::getcwd(current_dir, sizeof(current_dir)) == NULL) - { - error.SetError(errno, eErrorTypePOSIX); - error.LogIfError(log, "unable to save the current directory"); - return error; - } - - if (::chdir(working_dir.GetCString()) == -1) - { - error.SetError(errno, eErrorTypePOSIX); - error.LogIfError(log, "unable to change working directory to %s", - working_dir.GetCString()); - return error; - } -#endif + if (::getcwd(current_dir, sizeof(current_dir)) == NULL) { + error.SetError(errno, eErrorTypePOSIX); + error.LogIfError(log, "unable to save the current directory"); + return error; } - ::pid_t result_pid = LLDB_INVALID_PROCESS_ID; - const size_t num_file_actions = launch_info.GetNumFileActions (); - if (num_file_actions > 0) - { - posix_spawn_file_actions_t file_actions; - error.SetError( ::posix_spawn_file_actions_init (&file_actions), eErrorTypePOSIX); - if (error.Fail() || log) - error.PutToLog(log, "::posix_spawn_file_actions_init ( &file_actions )"); - if (error.Fail()) - return error; - - // Make a quick class that will cleanup the posix spawn attributes in case - // we return in the middle of this function. - lldb_utility::CleanUp <posix_spawn_file_actions_t *, int> posix_spawn_file_actions_cleanup (&file_actions, posix_spawn_file_actions_destroy); - - for (size_t i=0; i<num_file_actions; ++i) - { - const FileAction *launch_file_action = launch_info.GetFileActionAtIndex(i); - if (launch_file_action) - { - if (!AddPosixSpawnFileAction(&file_actions, launch_file_action, log, error)) - return error; - } - } + if (::chdir(working_dir.GetCString()) == -1) { + error.SetError(errno, eErrorTypePOSIX); + error.LogIfError(log, "unable to change working directory to %s", + working_dir.GetCString()); + return error; + } +#endif + } - error.SetError(::posix_spawnp(&result_pid, exe_path, &file_actions, &attr, argv, envp), eErrorTypePOSIX); + ::pid_t result_pid = LLDB_INVALID_PROCESS_ID; + const size_t num_file_actions = launch_info.GetNumFileActions(); + if (num_file_actions > 0) { + posix_spawn_file_actions_t file_actions; + error.SetError(::posix_spawn_file_actions_init(&file_actions), + eErrorTypePOSIX); + if (error.Fail() || log) + error.PutToLog(log, "::posix_spawn_file_actions_init ( &file_actions )"); + if (error.Fail()) + return error; - if (error.Fail() || log) - { - error.PutToLog(log, "::posix_spawnp ( pid => %i, path = '%s', file_actions = %p, attr = %p, argv = %p, envp = %p )", result_pid, - exe_path, static_cast<void *>(&file_actions), static_cast<void *>(&attr), reinterpret_cast<const void *>(argv), - reinterpret_cast<const void *>(envp)); - if (log) - { - for (int ii=0; argv[ii]; ++ii) - log->Printf("argv[%i] = '%s'", ii, argv[ii]); - } - } + // Make a quick class that will cleanup the posix spawn attributes in case + // we return in the middle of this function. + lldb_utility::CleanUp<posix_spawn_file_actions_t *, int> + posix_spawn_file_actions_cleanup(&file_actions, + posix_spawn_file_actions_destroy); + + for (size_t i = 0; i < num_file_actions; ++i) { + const FileAction *launch_file_action = + launch_info.GetFileActionAtIndex(i); + if (launch_file_action) { + if (!AddPosixSpawnFileAction(&file_actions, launch_file_action, log, + error)) + return error; + } + } + error.SetError( + ::posix_spawnp(&result_pid, exe_path, &file_actions, &attr, argv, envp), + eErrorTypePOSIX); + + if (error.Fail() || log) { + error.PutToLog( + log, "::posix_spawnp ( pid => %i, path = '%s', file_actions = %p, " + "attr = %p, argv = %p, envp = %p )", + result_pid, exe_path, static_cast<void *>(&file_actions), + static_cast<void *>(&attr), reinterpret_cast<const void *>(argv), + reinterpret_cast<const void *>(envp)); + if (log) { + for (int ii = 0; argv[ii]; ++ii) + log->Printf("argv[%i] = '%s'", ii, argv[ii]); + } } - else - { - error.SetError(::posix_spawnp(&result_pid, exe_path, NULL, &attr, argv, envp), eErrorTypePOSIX); - if (error.Fail() || log) - { - error.PutToLog(log, "::posix_spawnp ( pid => %i, path = '%s', file_actions = NULL, attr = %p, argv = %p, envp = %p )", - result_pid, exe_path, static_cast<void *>(&attr), reinterpret_cast<const void *>(argv), - reinterpret_cast<const void *>(envp)); - if (log) - { - for (int ii=0; argv[ii]; ++ii) - log->Printf("argv[%i] = '%s'", ii, argv[ii]); - } - } + } else { + error.SetError( + ::posix_spawnp(&result_pid, exe_path, NULL, &attr, argv, envp), + eErrorTypePOSIX); + + if (error.Fail() || log) { + error.PutToLog(log, "::posix_spawnp ( pid => %i, path = '%s', " + "file_actions = NULL, attr = %p, argv = %p, envp = " + "%p )", + result_pid, exe_path, static_cast<void *>(&attr), + reinterpret_cast<const void *>(argv), + reinterpret_cast<const void *>(envp)); + if (log) { + for (int ii = 0; argv[ii]; ++ii) + log->Printf("argv[%i] = '%s'", ii, argv[ii]); + } } - pid = result_pid; + } + pid = result_pid; - if (working_dir) - { -#if defined (__APPLE__) - // No more thread specific current working directory - __pthread_fchdir (-1); + if (working_dir) { +#if defined(__APPLE__) + // No more thread specific current working directory + __pthread_fchdir(-1); #else - if (::chdir(current_dir) == -1 && error.Success()) - { - error.SetError(errno, eErrorTypePOSIX); - error.LogIfError(log, "unable to change current directory back to %s", - current_dir); - } -#endif + if (::chdir(current_dir) == -1 && error.Success()) { + error.SetError(errno, eErrorTypePOSIX); + error.LogIfError(log, "unable to change current directory back to %s", + current_dir); } +#endif + } - return error; + return error; } -bool -Host::AddPosixSpawnFileAction(void *_file_actions, const FileAction *info, Log *log, Error &error) -{ - if (info == NULL) - return false; - - posix_spawn_file_actions_t *file_actions = reinterpret_cast<posix_spawn_file_actions_t *>(_file_actions); - - switch (info->GetAction()) - { - case FileAction::eFileActionNone: - error.Clear(); - break; - - case FileAction::eFileActionClose: - if (info->GetFD() == -1) - error.SetErrorString("invalid fd for posix_spawn_file_actions_addclose(...)"); - else - { - error.SetError(::posix_spawn_file_actions_addclose(file_actions, info->GetFD()), eErrorTypePOSIX); - if (log && (error.Fail() || log)) - error.PutToLog(log, "posix_spawn_file_actions_addclose (action=%p, fd=%i)", - static_cast<void *>(file_actions), info->GetFD()); - } - break; - - case FileAction::eFileActionDuplicate: - if (info->GetFD() == -1) - error.SetErrorString("invalid fd for posix_spawn_file_actions_adddup2(...)"); - else if (info->GetActionArgument() == -1) - error.SetErrorString("invalid duplicate fd for posix_spawn_file_actions_adddup2(...)"); - else - { - error.SetError( - ::posix_spawn_file_actions_adddup2(file_actions, info->GetFD(), info->GetActionArgument()), - eErrorTypePOSIX); - if (log && (error.Fail() || log)) - error.PutToLog(log, "posix_spawn_file_actions_adddup2 (action=%p, fd=%i, dup_fd=%i)", - static_cast<void *>(file_actions), info->GetFD(), info->GetActionArgument()); - } - break; +bool Host::AddPosixSpawnFileAction(void *_file_actions, const FileAction *info, + Log *log, Error &error) { + if (info == NULL) + return false; - case FileAction::eFileActionOpen: - if (info->GetFD() == -1) - error.SetErrorString("invalid fd in posix_spawn_file_actions_addopen(...)"); - else - { - int oflag = info->GetActionArgument(); - - mode_t mode = 0; - - if (oflag & O_CREAT) - mode = 0640; - - error.SetError( - ::posix_spawn_file_actions_addopen(file_actions, info->GetFD(), info->GetPath(), oflag, mode), - eErrorTypePOSIX); - if (error.Fail() || log) - error.PutToLog(log, - "posix_spawn_file_actions_addopen (action=%p, fd=%i, path='%s', oflag=%i, mode=%i)", - static_cast<void *>(file_actions), info->GetFD(), info->GetPath(), oflag, mode); - } - break; + posix_spawn_file_actions_t *file_actions = + reinterpret_cast<posix_spawn_file_actions_t *>(_file_actions); + + switch (info->GetAction()) { + case FileAction::eFileActionNone: + error.Clear(); + break; + + case FileAction::eFileActionClose: + if (info->GetFD() == -1) + error.SetErrorString( + "invalid fd for posix_spawn_file_actions_addclose(...)"); + else { + error.SetError( + ::posix_spawn_file_actions_addclose(file_actions, info->GetFD()), + eErrorTypePOSIX); + if (log && (error.Fail() || log)) + error.PutToLog(log, + "posix_spawn_file_actions_addclose (action=%p, fd=%i)", + static_cast<void *>(file_actions), info->GetFD()); + } + break; + + case FileAction::eFileActionDuplicate: + if (info->GetFD() == -1) + error.SetErrorString( + "invalid fd for posix_spawn_file_actions_adddup2(...)"); + else if (info->GetActionArgument() == -1) + error.SetErrorString( + "invalid duplicate fd for posix_spawn_file_actions_adddup2(...)"); + else { + error.SetError( + ::posix_spawn_file_actions_adddup2(file_actions, info->GetFD(), + info->GetActionArgument()), + eErrorTypePOSIX); + if (log && (error.Fail() || log)) + error.PutToLog( + log, + "posix_spawn_file_actions_adddup2 (action=%p, fd=%i, dup_fd=%i)", + static_cast<void *>(file_actions), info->GetFD(), + info->GetActionArgument()); + } + break; + + case FileAction::eFileActionOpen: + if (info->GetFD() == -1) + error.SetErrorString( + "invalid fd in posix_spawn_file_actions_addopen(...)"); + else { + int oflag = info->GetActionArgument(); + + mode_t mode = 0; + + if (oflag & O_CREAT) + mode = 0640; + + error.SetError( + ::posix_spawn_file_actions_addopen(file_actions, info->GetFD(), + info->GetPath(), oflag, mode), + eErrorTypePOSIX); + if (error.Fail() || log) + error.PutToLog(log, "posix_spawn_file_actions_addopen (action=%p, " + "fd=%i, path='%s', oflag=%i, mode=%i)", + static_cast<void *>(file_actions), info->GetFD(), + info->GetPath(), oflag, mode); } - return error.Success(); + break; + } + return error.Success(); } #endif // !defined(__ANDROID__) && !defined(__ANDROID_NDK__) -#endif // defined (__APPLE__) || defined (__linux__) || defined (__FreeBSD__) || defined (__GLIBC__) || defined(__NetBSD__) +#endif // defined (__APPLE__) || defined (__linux__) || defined (__FreeBSD__) || + // defined (__GLIBC__) || defined(__NetBSD__) -#if defined(__linux__) || defined(__FreeBSD__) || defined(__GLIBC__) || defined(__NetBSD__) || defined(_WIN32) +#if defined(__linux__) || defined(__FreeBSD__) || defined(__GLIBC__) || \ + defined(__NetBSD__) || defined(_WIN32) // The functions below implement process launching via posix_spawn() for Linux, // FreeBSD and NetBSD. -Error -Host::LaunchProcess (ProcessLaunchInfo &launch_info) -{ - std::unique_ptr<ProcessLauncher> delegate_launcher; +Error Host::LaunchProcess(ProcessLaunchInfo &launch_info) { + std::unique_ptr<ProcessLauncher> delegate_launcher; #if defined(_WIN32) - delegate_launcher.reset(new ProcessLauncherWindows()); + delegate_launcher.reset(new ProcessLauncherWindows()); #elif defined(__linux__) - delegate_launcher.reset(new ProcessLauncherLinux()); + delegate_launcher.reset(new ProcessLauncherLinux()); #else - delegate_launcher.reset(new ProcessLauncherPosix()); + delegate_launcher.reset(new ProcessLauncherPosix()); #endif - MonitoringProcessLauncher launcher(std::move(delegate_launcher)); + MonitoringProcessLauncher launcher(std::move(delegate_launcher)); - Error error; - HostProcess process = launcher.LaunchProcess(launch_info, error); + Error error; + HostProcess process = launcher.LaunchProcess(launch_info, error); - // TODO(zturner): It would be better if the entire HostProcess were returned instead of writing - // it into this structure. - launch_info.SetProcessID(process.GetProcessId()); + // TODO(zturner): It would be better if the entire HostProcess were returned + // instead of writing + // it into this structure. + launch_info.SetProcessID(process.GetProcessId()); - return error; + return error; } #endif // defined(__linux__) || defined(__FreeBSD__) || defined(__NetBSD__) #ifndef _WIN32 -void -Host::Kill(lldb::pid_t pid, int signo) -{ - ::kill(pid, signo); -} +void Host::Kill(lldb::pid_t pid, int signo) { ::kill(pid, signo); } #endif -#if !defined (__APPLE__) -bool -Host::OpenFileInExternalEditor (const FileSpec &file_spec, uint32_t line_no) -{ - return false; +#if !defined(__APPLE__) +bool Host::OpenFileInExternalEditor(const FileSpec &file_spec, + uint32_t line_no) { + return false; } -void -Host::SetCrashDescriptionWithFormat (const char *format, ...) -{ -} +void Host::SetCrashDescriptionWithFormat(const char *format, ...) {} -void -Host::SetCrashDescription (const char *description) -{ -} +void Host::SetCrashDescription(const char *description) {} #endif -const UnixSignalsSP & -Host::GetUnixSignals() -{ - static const auto s_unix_signals_sp = UnixSignals::Create(HostInfo::GetArchitecture()); - return s_unix_signals_sp; +const UnixSignalsSP &Host::GetUnixSignals() { + static const auto s_unix_signals_sp = + UnixSignals::Create(HostInfo::GetArchitecture()); + return s_unix_signals_sp; } |