* external.cc (cygwin_internal): Initialize various internal settings if

required to allow use of some things from user loaded DLL.
(CW_STRACE_ON): Add new feature.
(CW_CYGWIN_PID_TO_WINPID): Ditto.
* pinfo.cc (set_myself): Call "strace.hello" to initiate possible strace
session.
(pinfo::init): Guard against dereferencing uninitialized myself.
* sigproc.cc (wait_sig): Call strace.hello() when __SIGTRACE "signal" received.
* strace.cc (strace::hello): New method.
* wincap.cc (wincapc::init): Avoid initializing if already initialized.
* wincap.h (wincapc::wincapc): New method.
* include/sys/cygwin.h: Add new CW_ enums.  Kludge typedefs of {g,u}id_t if
required.
* strace.h (strace::hello): Declare new method.

1 files changed, 25 insertions, 0 deletions

diff --git a/winsup/cygwin/strace.cc b/winsup/cygwin/strace.cc
index b7e0a2a32..993bfe1ef 100644
--- a/winsup/cygwin/strace.cc
+++ b/winsup/cygwin/strace.cc
@@ -17,6 +17,8 @@ details. */
 #include "sync.h"
 #include "sigproc.h"
 #include "pinfo.h"
+#include "perprocess.h"
+#include "cygwin_version.h"
 
 #define PROTECT(x) x[sizeof(x)-1] = 0
 #define CHECK(x) if (x[sizeof(x)-1] != 0) { small_printf("array bound exceeded %d\n", __LINE__); ExitProcess(1); }
@@ -28,6 +30,29 @@ class NO_COPY strace strace;
 
 #ifndef NOSTRACE
 
+void
+strace::hello()
+{
+  char buf[30];
+  __small_sprintf (buf, "cYg%8x %x", _STRACE_INTERFACE_ACTIVATE_ADDR, &active);
+  OutputDebugString (buf);
+
+  if (active)
+    {
+      prntf (1, NULL, "**********************************************");
+      prntf (1, NULL, "Program name: %s (%d)", myself->progname, myself->pid);
+      prntf (1, NULL, "App version:  %d.%d, api: %d.%d",
+	     user_data->dll_major, user_data->dll_minor,
+	     user_data->api_major, user_data->api_minor);
+      prntf (1, NULL, "DLL version:  %d.%d, api: %d.%d",
+	     cygwin_version.dll_major, cygwin_version.dll_minor,
+	     cygwin_version.api_major, cygwin_version.api_minor);
+      prntf (1, NULL, "DLL build:    %s", cygwin_version.dll_build_date);
+      prntf (1, NULL, "OS version:   Windows %s", wincap.osname ());
+      prntf (1, NULL, "**********************************************");
+    }
+}
+
 int
 strace::microseconds()
 {