* path.cc (mount_info::cygdrive_posix_path): Don't add trailing slash if

referring to something like c:\.
* dcrt0.cc (dll_crt0_1): Move uinfo initialization prior to sig_send
initialization to give signal thread a chance to finish.
* debug.cc (WFSO): Move to sigproc.cc
(WFMO): Ditto.
* exceptions.cc (interruptible): Allocate slightly more space for directory
just for paranoia's sake.
(call_handler): Eliminate nonmain argument.  Determine if main thread has set a
frame pointer and use it if so.
(sig_handle): Eliminate nonmain argument.
* net.cc: Record frame information in appropriate routines throughout.
* select.cc (select): Ditto.
* sigproc.cc: Use sigthread structure to record mainthread id throughout.
(sig_send): Record frame information for signal handler.
(wait_sig): Reflect argument change in sig_handle.
(WFSO): Move here and record frame information for signal handler.
(WFMO): Ditto.
* sigproc.h: Implement new "sigthread" class.  Implement "sigframe" class for
manipulating signal frame info.
* thread.cc (__pthread_kill): Use standard _kill() function rather than calling
sig_send directly.
* winsup.h: Eliminate ebp element from signal_dispatch class.

1 files changed, 12 insertions, 7 deletions

diff --git a/winsup/cygwin/path.cc b/winsup/cygwin/path.cc
index 42170aa16..0251c9004 100644
--- a/winsup/cygwin/path.cc
+++ b/winsup/cygwin/path.cc
@@ -1101,7 +1101,7 @@ mount_info::cygdrive_posix_path (const char *src, char *dst, int trailing_slash_
      The cygdrive prefix always ends with a trailing slash so
      the drive letter is added after the path. */
   dst[len++] = tolower (src[0]);
-  if (!src[2])
+  if (!src[2] || (SLASH_P (src[2]) && !src[3]))
     dst[len++] = '\000';
   else
     {
@@ -1136,11 +1136,17 @@ mount_info::conv_to_posix_path (const char *src_path, char *posix_path,
 				int keep_rel_p)
 {
   int src_path_len = strlen (src_path);
-  int trailing_slash_p = (src_path_len > 0
-			  && SLASH_P (src_path[src_path_len - 1]));
-  int relative_path_p = (! SLASH_P (*src_path)
-			 && strchr (src_path, ':') == NULL);
+  int relative_path_p = !isabspath (src_path);
+  int trailing_slash_p;
 
+  if (src_path_len <= 1)
+    trailing_slash_p = 0;
+  else
+    {
+      const char *lastchar = src_path + src_path_len - 1;
+      trailing_slash_p = SLASH_P (*lastchar) && lastchar[-1] != ':';
+    }
+    
   debug_printf ("conv_to_posix_path (%s, %s)", src_path,
 		keep_rel_p ? "keep-rel" : "no-keep-rel");
   MALLOC_CHECK;
@@ -1212,8 +1218,7 @@ mount_info::conv_to_posix_path (const char *src_path, char *posix_path,
      caller must want an absolute path (otherwise we would have returned
      above).  So we always return an absolute path at this point. */
   if ((isalpha (pathbuf[0])) && (pathbuf[1] == ':'))
-    cygdrive_posix_path (pathbuf, posix_path, trailing_slash_p &&
-					      pathbuflen > 3);
+    cygdrive_posix_path (pathbuf, posix_path, trailing_slash_p);
   else
     {
       /* The use of src_path and not pathbuf here is intentional.