mirror of
https://github.com/SerenityOS/serenity
synced 2024-10-15 12:23:15 +00:00
Kernel: Tidy up debug logging a little bit
When using dbg() in the kernel, the output is automatically prefixed with [Process(PID:TID)]. This makes it a lot easier to understand which thread is generating the output. This patch also cleans up some common logging messages and removes the now-unnecessary "dbg() << *current << ..." pattern.
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5dd5d5ca4e
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f38cfb3562
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@ -24,10 +24,15 @@
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <AK/String.h>
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#include <AK/LogStream.h>
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#include <AK/String.h>
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#include <AK/StringView.h>
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#ifdef KERNEL
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# include <Kernel/Process.h>
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# include <Kernel/Thread.h>
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#endif
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namespace AK {
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const LogStream& operator<<(const LogStream& stream, const String& value)
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@ -62,7 +67,7 @@ const LogStream& operator<<(const LogStream& stream, const void* value)
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return stream << String::format("%p", value);
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}
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#if defined (__serenity__) && !defined(KERNEL)
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#if defined(__serenity__) && !defined(KERNEL)
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static TriState got_process_name = TriState::Unknown;
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static char process_name_buffer[256];
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#endif
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@ -70,7 +75,7 @@ static char process_name_buffer[256];
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DebugLogStream dbg()
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{
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DebugLogStream stream;
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#if defined (__serenity__) && !defined(KERNEL)
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#if defined(__serenity__) && !defined(KERNEL)
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if (got_process_name == TriState::Unknown) {
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if (get_process_name(process_name_buffer, sizeof(process_name_buffer)) == 0)
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got_process_name = TriState::True;
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@ -79,6 +84,12 @@ DebugLogStream dbg()
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}
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if (got_process_name == TriState::True)
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stream << "\033[33;1m" << process_name_buffer << '(' << getpid() << ")\033[0m: ";
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#endif
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#if defined(__serenity__) && defined(KERNEL)
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if (current)
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stream << "\033[34;1m[" << *current << "]\033[0m: ";
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else
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stream << "\033[36;1m[Kernel]\033[0m: ";
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#endif
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return stream;
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}
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@ -123,9 +123,7 @@ KResultOr<Region*> BXVGADevice::mmap(Process& process, FileDescription&, Virtual
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0,
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"BXVGA Framebuffer",
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prot);
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dbgprintf("BXVGA: %s(%u) created Region{%p} with size %u for framebuffer P%x with vaddr V%p\n",
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process.name().characters(), process.pid(),
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region, region->size(), m_framebuffer_address.as_ptr(), region->vaddr().get());
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dbg() << "BXVGADevice: mmap with size " << region->size() << " at " << region->vaddr();
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ASSERT(region);
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return region;
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}
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@ -62,9 +62,7 @@ KResultOr<Region*> MBVGADevice::mmap(Process& process, FileDescription&, Virtual
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0,
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"MBVGA Framebuffer",
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prot);
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dbgprintf("MBVGA: %s(%u) created Region{%p} with size %u for framebuffer P%x with vaddr V%p\n",
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process.name().characters(), process.pid(),
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region, region->size(), m_framebuffer_address.as_ptr(), region->vaddr().get());
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dbg() << "MBVGADevice: mmap with size " << region->size() << " at " << region->vaddr();
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ASSERT(region);
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return region;
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}
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@ -728,38 +728,38 @@ KResult VFS::validate_path_against_process_veil(StringView path, int options)
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auto* unveiled_path = find_matching_unveiled_path(path);
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if (!unveiled_path) {
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dbg() << *current << " rejecting path '" << path << "' since it hasn't been unveiled.";
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dbg() << "Rejecting path '" << path << "' since it hasn't been unveiled.";
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return KResult(-ENOENT);
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}
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if (options & O_CREAT) {
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if (!(unveiled_path->permissions & UnveiledPath::Access::CreateOrRemove)) {
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dbg() << *current << " rejecting path '" << path << "' since it hasn't been unveiled with 'c' permission.";
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dbg() << "Rejecting path '" << path << "' since it hasn't been unveiled with 'c' permission.";
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return KResult(-EACCES);
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}
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}
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if (options & O_UNLINK_INTERNAL) {
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if (!(unveiled_path->permissions & UnveiledPath::Access::CreateOrRemove)) {
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dbg() << *current << " rejecting path '" << path << "' for unlink since it hasn't been unveiled with 'c' permission.";
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dbg() << "Rejecting path '" << path << "' for unlink since it hasn't been unveiled with 'c' permission.";
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return KResult(-EACCES);
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}
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return KSuccess;
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}
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if (options & O_RDONLY) {
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if (!(unveiled_path->permissions & UnveiledPath::Access::Read)) {
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dbg() << *current << " rejecting path '" << path << "' since it hasn't been unveiled with 'r' permission.";
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dbg() << "Rejecting path '" << path << "' since it hasn't been unveiled with 'r' permission.";
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return KResult(-EACCES);
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}
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}
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if (options & O_WRONLY) {
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if (!(unveiled_path->permissions & UnveiledPath::Access::Write)) {
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dbg() << *current << " rejecting path '" << path << "' since it hasn't been unveiled with 'w' permission.";
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dbg() << "Rejecting path '" << path << "' since it hasn't been unveiled with 'w' permission.";
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return KResult(-EACCES);
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}
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}
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if (options & O_EXEC) {
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if (!(unveiled_path->permissions & UnveiledPath::Access::Execute)) {
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dbg() << *current << " rejecting path '" << path << "' since it hasn't been unveiled with 'x' permission.";
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dbg() << "Rejecting path '" << path << "' since it hasn't been unveiled with 'x' permission.";
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return KResult(-EACCES);
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}
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}
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@ -697,7 +697,7 @@ int Process::do_exec(NonnullRefPtr<FileDescription> main_program_description, Ve
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{
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ASSERT(is_ring3());
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auto path = main_program_description->absolute_path();
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dbgprintf("%s(%d) do_exec(%s): thread_count() = %d\n", m_name.characters(), m_pid, path.characters(), thread_count());
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dbg() << "do_exec(" << path << ")";
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// FIXME(Thread): Kill any threads the moment we commit to the exec().
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if (thread_count() != 1) {
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dbgprintf("Gonna die because I have many threads! These are the threads:\n");
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@ -1251,7 +1251,7 @@ Process::Process(Thread*& first_thread, const String& name, uid_t uid, gid_t gid
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, m_tty(tty)
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, m_ppid(ppid)
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{
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dbgprintf("Process: New process PID=%u with name=%s\n", m_pid, m_name.characters());
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dbg() << "Created new process " << m_name << "(" << m_pid << ")";
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m_page_directory = PageDirectory::create_for_userspace(*this, fork_parent ? &fork_parent->page_directory().range_allocator() : nullptr);
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#ifdef MM_DEBUG
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@ -1305,7 +1305,6 @@ Process::Process(Thread*& first_thread, const String& name, uid_t uid, gid_t gid
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Process::~Process()
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{
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dbgprintf("~Process{%p} name=%s pid=%d, m_fds=%d, m_thread_count=%u\n", this, m_name.characters(), pid(), m_fds.size(), m_thread_count);
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ASSERT(thread_count() == 0);
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}
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@ -2269,7 +2268,7 @@ int Process::reap(Process& process)
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}
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}
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dbgprintf("reap: %s(%u)\n", process.name().characters(), process.pid());
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dbg() << "Reaping process " << process;
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ASSERT(process.is_dead());
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g_processes->remove(&process);
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}
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@ -2280,7 +2279,7 @@ int Process::reap(Process& process)
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pid_t Process::sys$waitpid(pid_t waitee, int* wstatus, int options)
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{
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REQUIRE_PROMISE(stdio);
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dbgprintf("sys$waitpid(%d, %p, %d)\n", waitee, wstatus, options);
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dbg() << "sys$waitpid(" << waitee << ", " << wstatus << ", " << options << ")";
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if (!options) {
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// FIXME: This can't be right.. can it? Figure out how this should actually work.
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@ -2712,7 +2711,7 @@ int Process::sys$select(const Syscall::SC_select_params* params)
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for (int fd = 0; fd < nfds; ++fd) {
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if (FD_ISSET(fd, fds)) {
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if (!file_description(fd)) {
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dbg() << *current << " sys$select: Bad fd number " << fd;
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dbg() << "sys$select: Bad fd number " << fd;
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return -EBADF;
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}
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vector.append(fd);
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@ -2931,7 +2930,7 @@ int Process::sys$chown(const Syscall::SC_chown_params* user_params)
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void Process::finalize()
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{
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ASSERT(current == g_finalizer);
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dbgprintf("Finalizing Process %s(%u)\n", m_name.characters(), m_pid);
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dbg() << "Finalizing process " << *this;
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m_fds.clear();
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m_tty = nullptr;
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@ -639,7 +639,7 @@ inline u32 Thread::effective_priority() const
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#define REQUIRE_NO_PROMISES \
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do { \
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if (current->process().has_promises()) { \
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dbg() << *current << " has made a promise"; \
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dbg() << "Has made a promise"; \
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cli(); \
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current->process().crash(SIGABRT, 0); \
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ASSERT_NOT_REACHED(); \
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@ -650,7 +650,7 @@ inline u32 Thread::effective_priority() const
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do { \
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if (current->process().has_promises() \
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&& !current->process().has_promised(Pledge::promise)) { \
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dbg() << *current << " has not pledged " << #promise; \
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dbg() << "Has not pledged " << #promise; \
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cli(); \
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current->process().crash(SIGABRT, 0); \
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ASSERT_NOT_REACHED(); \
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@ -82,7 +82,7 @@ Thread::Thread(Process& process)
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m_tid = Process::allocate_pid();
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}
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process.m_thread_count++;
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dbgprintf("Thread{%p}: New thread TID=%u in %s(%u)\n", this, m_tid, process.name().characters(), process.pid());
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dbg() << "Created new thread " << process.name() << "(" << process.pid() << ":" << m_tid << ")";
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set_default_signal_dispositions();
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m_fpu_state = (FPUState*)kmalloc_aligned(sizeof(FPUState), 16);
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memcpy(m_fpu_state, &s_clean_fpu_state, sizeof(FPUState));
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Thread::~Thread()
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{
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dbgprintf("~Thread{%p}\n", this);
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kfree_aligned(m_fpu_state);
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{
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InterruptDisabler disabler;
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@ -282,7 +281,7 @@ void Thread::finalize()
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{
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ASSERT(current == g_finalizer);
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dbgprintf("Finalizing Thread %u in %s(%u)\n", tid(), m_process.name().characters(), pid());
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dbg() << "Finalizing thread " << *this;
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set_state(Thread::State::Dead);
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if (m_joiner) {
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@ -308,7 +307,6 @@ void Thread::finalize_dying_threads()
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return IterationDecision::Continue;
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});
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}
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dbgprintf("Finalizing %u dying threads\n", dying_threads.size());
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for (auto* thread : dying_threads) {
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auto& process = thread->process();
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thread->finalize();
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if (process.m_thread_count == 0)
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process.finalize();
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}
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dbgprintf("Done\n");
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}
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bool Thread::tick()
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@ -570,7 +570,7 @@ bool MemoryManager::validate_range(const Process& process, VirtualAddress base_v
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VirtualAddress vaddr = base_vaddr.page_base();
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VirtualAddress end_vaddr = base_vaddr.offset(size - 1).page_base();
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if (end_vaddr < vaddr) {
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dbg() << *current << " Shenanigans! Asked to validate " << base_vaddr << " size=" << size;
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dbg() << "Shenanigans! Asked to validate " << base_vaddr << " size=" << size;
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return false;
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}
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const Region* region = nullptr;
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@ -444,7 +444,7 @@ PageFaultResponse Region::handle_inode_fault(size_t page_index_in_region)
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cli();
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#ifdef PAGE_FAULT_DEBUG
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dbg() << *current << " inode fault in " << name() << " page index: " << page_index_in_region;
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dbg() << "Inode fault in " << name() << " page index: " << page_index_in_region;
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#endif
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if (!vmobject_physical_page_entry.is_null()) {
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