* exceptions.cc (interruptible): Allocate slightly more space for directory

name check.  Windows 95 seems to null-terminate the directory otherwise.
(interrupt_on_return): Issue a fatal error if we can't find the caller's stack.
* spawn.cc (find_exec): Accept a path_conv argument rather than a buffer so
that the caller can find things out about a translated path.
(perhaps_suffix): Ditto.
(spawn_guts): Allocate path_conv stuff here so that we can find out stuff about
the translated path (this is work in progress).
* environ.cc (environ_init): Accept an as-yet unused argument indicating
whether we were invoked from a cygwin parent or not.
(winenv): Ditto.
(posify): Accept an argument indicating whether the path has already been
translated.
* dlfcn.cc (check_access): Provide a path_conv buffer to find_exec.
* exec.cc (sexecvpe): Ditto.
* path.cc (path_conv::check): Rename from path_conv::path_conv.
(mount_item::getmntent): Recognize "Cygwin executable" bit.
(symlink_info::check): Remove debugging statements.
* path.h (class path_conv): Add iscygexec method.  Rewrite constructor to call
"check" method to allow multiple operations on a path_conv variable.
* pinfo.cc (pinfo_init): Pass argument to environ_init.
* shared.h: Bump PROC_MAGIC.
* winsup.h: Reflect above changes to function arguments.
* include/sys/mount.h: Add MOUNT_CYGWIN_EXEC type.

1 files changed, 9 insertions, 7 deletions

diff --git a/winsup/cygwin/include/sys/mount.h b/winsup/cygwin/include/sys/mount.h
index 5f64017..13963f9 100644
--- a/winsup/cygwin/include/sys/mount.h
+++ b/winsup/cygwin/include/sys/mount.h
@@ -6,13 +6,15 @@ extern "C" {
 #endif
 
 enum
-  {
-    MOUNT_SYMLINK = 1,	/* "mount point" is a symlink */
-    MOUNT_BINARY =  2,	/* "binary" format read/writes */
-    MOUNT_SYSTEM =  8,	/* mount point came from system table */
-    MOUNT_EXEC   = 16,	/* Any file in the mounted directory gets 'x' bit */
-    MOUNT_AUTO   = 32	/* mount point refers to auto device mount */
-  };
+{
+  MOUNT_SYMLINK = 1,	/* "mount point" is a symlink */
+  MOUNT_BINARY =  2,	/* "binary" format read/writes */
+  MOUNT_SYSTEM =  8,	/* mount point came from system table */
+  MOUNT_EXEC   = 16,	/* Any file in the mounted directory gets 'x' bit */
+  MOUNT_AUTO   = 32,	/* mount point refers to auto device mount */
+  MOUNT_CYGWIN_EXEC = 64/* file or directory is or contains a cygwin
+			    executable */
+};
 
 int mount (const char *, const char *, unsigned __flags);
 int umount (const char *);