More compat work towards porting vim.

It now builds and runs in the small-featureset configuration. :^)

Applications/Terminal/Terminal.cpp

@@ -190,6 +190,13 @@ void Terminal::escape$u(const Vector<unsigned>&)
     set_cursor(m_saved_cursor_row, m_saved_cursor_column);
 }
 
+void Terminal::escape$t(const Vector<unsigned>& params)
+{
+    if (params.size() < 1)
+        return;
+    dbgprintf("escape$t: Ps: %u\n", params[0]);
+}
+
 void Terminal::escape$H(const Vector<unsigned>& params)
 {
     unsigned row = 1;
@@ -380,6 +387,7 @@ void Terminal::execute_escape_sequence(byte final)
     case 'm': escape$m(params); break;
     case 's': escape$s(params); break;
     case 'u': escape$u(params); break;
+    case 't': escape$t(params); break;
     default:
         dbgprintf("Terminal::execute_escape_sequence: Unhandled final '%c'\n", final);
         break;

Applications/Terminal/Terminal.h

@@ -53,6 +53,7 @@ private:
     void escape$m(const Vector<unsigned>&);
     void escape$s(const Vector<unsigned>&);
     void escape$u(const Vector<unsigned>&);
+    void escape$t(const Vector<unsigned>&);
 
     void clear();
 

Kernel/FileDescriptor.cpp

@@ -393,7 +393,13 @@ Region* FileDescriptor::mmap(Process& process, LinearAddress laddr, size_t offse
 
     ASSERT(m_inode);
     // FIXME: If PROT_EXEC, check that the underlying file system isn't mounted noexec.
-    auto region_name = absolute_path();
+    String region_name;
+#if 0
+    // FIXME: I would like to do this, but it would instantiate all the damn inodes.
+    region_name = absolute_path();
+#else
+    region_name = "Memory-mapped file";
+#endif
     InterruptDisabler disabler;
     // FIXME: Implement mapping at a client-specified address. Most of the support is already in plcae.
     ASSERT(laddr.as_ptr() == nullptr);

Kernel/Process.cpp

@@ -313,7 +313,12 @@ int Process::do_exec(String path, Vector<String> arguments, Vector<String> envir
     ProcessPagingScope paging_scope(*this);
 
     auto vmo = VMObject::create_file_backed(descriptor->inode());
+#if 0
+    // FIXME: I would like to do this, but it would instantiate all the damn inodes.
     vmo->set_name(descriptor->absolute_path());
+#else
+    vmo->set_name("ELF image");
+#endif
     RetainPtr<Region> region = allocate_region_with_vmo(LinearAddress(), descriptor->metadata().size, vmo.copy_ref(), 0, "executable", true, false);
 
     // FIXME: Should we consider doing on-demand paging here? Is it actually useful?
@@ -1547,6 +1552,7 @@ pid_t Process::sys$waitpid(pid_t waitee, int* wstatus, int options)
             return reaped_pid;
         } else {
             ASSERT(waitee > 0); // FIXME: Implement other PID specs.
+            InterruptDisabler disabler;
             auto* waitee_process = Process::from_pid(waitee);
             if (!waitee_process)
                 return -ECHILD;
@@ -1967,9 +1973,7 @@ int Process::sys$select(const Syscall::SC_select_params* params)
     auto* timeout = params->timeout;
 
     // FIXME: Implement exceptfds support.
-    //ASSERT(!exceptfds);
-    if (exceptfds)
-        kprintf("%s(%u): FIXME: select() with exceptfds\n", name().characters(), pid());
+    (void)exceptfds;
 
     if (timeout) {
         m_select_timeout = *timeout;
@@ -2006,6 +2010,9 @@ int Process::sys$select(const Syscall::SC_select_params* params)
     error = transfer_fds(readfds, m_select_read_fds);
     if (error)
         return error;
+    error = transfer_fds(readfds, m_select_exceptional_fds);
+    if (error)
+        return error;
 
 #ifdef DEBUG_IO
     dbgprintf("%s<%u> selecting on (read:%u, write:%u), wakeup_req:%u, timeout=%p\n", name().characters(), pid(), m_select_read_fds.size(), m_select_write_fds.size(), m_wakeup_requested, timeout);
@@ -2047,6 +2054,8 @@ int Process::sys$select(const Syscall::SC_select_params* params)
         }
     }
 
+    // FIXME: Check for exceptional conditions.
+
     return markedfds;
 }
 

Kernel/Process.h

@@ -353,6 +353,7 @@ private:
     int m_blocked_fd { -1 };
     Vector<int> m_select_read_fds;
     Vector<int> m_select_write_fds;
+    Vector<int> m_select_exceptional_fds;
     timeval m_select_timeout;
     bool m_select_has_timeout { false };
     size_t m_max_open_file_descriptors { 16 };

Kernel/Syscall.cpp

@@ -231,5 +231,7 @@ void syscall_trap_entry(RegisterDump& regs)
     dword arg2 = regs.ecx;
     dword arg3 = regs.ebx;
     regs.eax = Syscall::handle(regs, function, arg1, arg2, arg3);
+    if (function == Syscall::SC_mkdir)
+        dbgprintf("->%d\n", regs.eax);
 }
 

LibC/stdint.h

@@ -50,12 +50,16 @@ typedef __INTMAX_TYPE__ intmax_t;
 #define INT8_MIN (-128)
 #define INT16_MIN (-32767-1)
 #define INT32_MIN (-2147483647-1)
+#define INT64_MIN (-9223372036854775807LL-1LL)
 #define INT8_MAX (127)
 #define INT16_MAX (32767)
 #define INT32_MAX (2147483647)
+#define INT64_MAX (9223372036854775807LL)
 #define UINT8_MAX (255)
 #define UINT16_MAX (65535)
 #define UINT32_MAX (4294967295U)
+#define UINT64_MAX (18446744073709551615ULL)
+
 
 #define INT64_C(x)  x##LL
 #define UINT64_C(x) x##ULL

LibC/stdlib.cpp

@@ -33,7 +33,7 @@ struct MallocFooter {
     uint32_t xorcheck;
 };
 
-#define CHUNK_SIZE  16
+#define CHUNK_SIZE  32
 #define POOL_SIZE   4 * 1048576
 
 static const size_t malloc_budget = POOL_SIZE;
@@ -250,6 +250,14 @@ int putenv(char* new_var)
     return 0;
 }
 
+double strtod(const char* str, char** endptr)
+{
+    (void)str;
+    (void)endptr;
+    dbgprintf("LibC: strtod: '%s'\n", str);
+    assert(false);
+}
+
 double atof(const char* str)
 {
     dbgprintf("LibC: atof: '%s'\n", str);