This commit merges in changes from branches/ASPACEM (specifically,
changes from r4341 through r4787 inclusive).  That branch is now dead.
Please do not commit anything else to it.

For the most part the merge was not troublesome.  The main areas of
uncertainty are:

- build system: I had to import by hand Makefile.core-AM_CPPFLAGS.am
  and include it in a couple of places.  Building etc seems to still
  work, but I haven't tried building the documentation.

- syscall wrappers: Following analysis by Greg & Nick, a whole lot of
  stuff was moved from -generic to -linux after the branch was created.
  I think that is satisfactorily glued back together now.

- Regtests: although this appears to work, no .out files appear, which
  is strange, and makes it hard to diagnose regtest failures.  In
  particular memcheck/tests/x86/scalar.stderr.exp remains in a 
  conflicted state.

- amd64 is broken (slightly), and ppc32 will be unbuildable.  I'll
  attend to the former shortly.



git-svn-id: svn://svn.valgrind.org/valgrind/trunk@4789 a5019735-40e9-0310-863c-91ae7b9d1cf9
diff --git a/coregrind/pub_core_libcproc.h b/coregrind/pub_core_libcproc.h
index 4515399..4742719 100644
--- a/coregrind/pub_core_libcproc.h
+++ b/coregrind/pub_core_libcproc.h
@@ -36,34 +36,37 @@
 // It's a bit of a mixed bag.
 //--------------------------------------------------------------------
 
+#include "config.h"           // Crucial: ensure we get ENABLE_INNER
 #include "pub_tool_libcproc.h"
 
 /* The directory we look for all our auxillary files in.  Useful for
-   running Valgrind out of a build tree without having to do "make install". */
-#define VALGRINDLIB	"VALGRINDLIB"
+   running Valgrind out of a build tree without having to do "make
+   install".  Inner valgrinds require a different lib variable, else
+   they end up picking up .so's etc intended for the outer
+   valgrind. */
+#ifdef ENABLE_INNER
+#  define VALGRIND_LIB     "VALGRIND_LIB_INNER"
+#else
+#  define VALGRIND_LIB     "VALGRIND_LIB"
+#endif
 
 /* Additional command-line arguments; they are overridden by actual
    command-line option.  Each argument is separated by spaces.  There
    is no quoting mechanism.  */
-#define VALGRINDOPTS	"VALGRIND_OPTS"
+#define VALGRIND_OPTS    "VALGRIND_OPTS"
 
-/* If this variable is present in the environment, then valgrind will
-   not parse the command line for options at all; all options come
-   from this variable.  Arguments are terminated by ^A (\001).  There
-   is no quoting mechanism.
+/* The full name of Valgrind's stage1 (launcher) executable.  This is
+   set by stage1 and read by stage2, and is used for recursive
+   invocations of Valgrind on child processes. 
+   
+   For self-hosting, the inner and outer Valgrinds must use different
+   names to avoid collisions.  */
+#ifdef ENABLE_INNER
+#  define VALGRIND_LAUNCHER  "VALGRIND_LAUNCHER_INNER"
+#else
+#  define VALGRIND_LAUNCHER  "VALGRIND_LAUNCHER"
+#endif
 
-   This variable is not expected to be set by anything other than
-   Valgrind itself, as part of its handling of execve with
-   --trace-children=yes.  This variable should not be present in the
-   client environment.  */
-#define VALGRINDCLO	"_VALGRIND_CLO"
-
-// Client's executable file descriptor.
-extern Int VG_(clexecfd);
-
-// Client's original rlimit data and rlimit stack
-extern struct vki_rlimit VG_(client_rlimit_data);
-extern struct vki_rlimit VG_(client_rlimit_stack);
 
 // Environment manipulations
 extern Char **VG_(env_setenv)   ( Char ***envp, const Char* varname,
@@ -73,8 +76,11 @@
 extern Char **VG_(env_clone)    ( Char **env_clone );
 
 // misc
-extern Int VG_(poll)( struct vki_pollfd *, UInt nfds, Int timeout);
+extern Int  VG_(poll)( struct vki_pollfd *, UInt nfds, Int timeout);
 extern void VG_(nanosleep) ( struct vki_timespec * );
+extern Int  VG_(getgroups)( Int size, UInt* list );
+extern Int  VG_(ptrace)( Int request, Int pid, void *addr, void *data );
+extern Int  VG_(fork)( void );
 
 // atfork
 typedef void (*vg_atfork_t)(ThreadId);