unistd.h: put getppid under XOPEN2K8

Add __LEAF to all __THROW, introduce non-leaf __THROWNL
Adjust affected spots accordingly.

Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>

2 files changed, 33 insertions, 9 deletions

diff --git a/include/sys/cdefs.h b/include/sys/cdefs.h
index 6f81b6a7c..4da981f9a 100644
--- a/include/sys/cdefs.h
+++ b/include/sys/cdefs.h
@@ -37,20 +37,33 @@
 
 #ifdef __GNUC__
 
+/* All functions, except those with callbacks or those that
+   synchronize memory, are leaf functions.  */
+# if __GNUC_PREREQ (4, 6) && !defined _LIBC
+#  define __LEAF , __leaf__
+#  define __LEAF_ATTR __attribute__ ((__leaf__))
+# else
+#  define __LEAF
+#  define __LEAF_ATTR
+# endif
+
 /* GCC can always grok prototypes.  For C++ programs we add throw()
    to help it optimize the function calls.  But this works only with
    gcc 2.8.x and egcs.  For gcc 3.2 and up we even mark C functions
    as non-throwing using a function attribute since programs can use
    the -fexceptions options for C code as well.  */
 # if !defined __cplusplus && __GNUC_PREREQ (3, 3)
-#  define __THROW	__attribute__ ((__nothrow__))
-#  define __NTH(fct)	__attribute__ ((__nothrow__)) fct
+#  define __THROW	__attribute__ ((__nothrow__ __LEAF))
+#  define __THROWNL	__attribute__ ((__nothrow__))
+#  define __NTH(fct)	__attribute__ ((__nothrow__ __LEAF)) fct
 # else
 #  if defined __cplusplus && __GNUC_PREREQ (2,8)
 #   define __THROW	throw ()
-#   define __NTH(fct)	fct throw ()
+#   define __THROWNL	throw ()
+#   define __NTH(fct)	__LEAF_ATTR fct throw ()
 #  else
 #   define __THROW
+#   define __THROWNL
 #   define __NTH(fct)	fct
 #  endif
 # endif
@@ -60,6 +73,7 @@
 # define __inline		/* No inline functions.  */
 
 # define __THROW
+# define __THROWNL
 # define __NTH(fct)	fct
 
 #endif	/* GCC.  */
@@ -165,9 +179,13 @@
 # ifdef __cplusplus
 #  define __REDIRECT_NTH(name, proto, alias) \
      name proto __THROW __asm__ (__ASMNAME (#alias))
+#  define __REDIRECT_NTHNL(name, proto, alias) \
+     name proto __THROWNL __asm__ (__ASMNAME (#alias))
 # else
 #  define __REDIRECT_NTH(name, proto, alias) \
      name proto __asm__ (__ASMNAME (#alias)) __THROW
+#  define __REDIRECT_NTHNL(name, proto, alias) \
+     name proto __asm__ (__ASMNAME (#alias)) __THROWNL
 # endif
 # define __ASMNAME(cname)  __ASMNAME2 (__USER_LABEL_PREFIX__, cname)
 # define __ASMNAME2(prefix, cname) __STRING (prefix) cname
diff --git a/include/sys/wait.h b/include/sys/wait.h
index b3c2b973a..f7a420b93 100644
--- a/include/sys/wait.h
+++ b/include/sys/wait.h
@@ -28,10 +28,9 @@
 __BEGIN_DECLS
 
 #include <signal.h>
-#include <sys/resource.h>
 
 /* These macros could also be defined in <stdlib.h>.  */
-#if !defined _STDLIB_H || !defined __USE_XOPEN
+#if !defined _STDLIB_H || (!defined __USE_XOPEN && !defined __USE_XOPEN2K8)
 /* This will define the `W*' macros for the flag
    bits to `waitpid', `wait3', and `wait4'.  */
 # include <bits/waitflags.h>
@@ -97,7 +96,7 @@ typedef union
 #endif
 
 /* The following values are used by the `waitid' function.  */
-#if defined __USE_SVID || defined __USE_XOPEN
+#if defined __USE_SVID || defined __USE_XOPEN || defined __USE_XOPEN2K8
 typedef enum
 {
   P_ALL,		/* Wait for any child.  */
@@ -141,9 +140,15 @@ extern __typeof(waitpid) __waitpid_nocancel attribute_hidden;
 libc_hidden_proto(waitpid)
 #endif
 
-#if defined __USE_SVID || defined __USE_XOPEN
+#if defined __USE_SVID || defined __USE_XOPEN || defined __USE_XOPEN2K8
+# ifndef __id_t_defined
+#  include <bits/types.h>
+	typedef __id_t id_t;
+#  define __id_t_defined
+# endif
 # define __need_siginfo_t
 # include <bits/siginfo.h>
+
 /* Wait for a childing matching IDTYPE and ID to change the status and
    place appropriate information in *INFOP.
    If IDTYPE is P_PID, match any process whose process ID is ID.
@@ -160,19 +165,20 @@ extern int waitid (idtype_t __idtype, __id_t __id, siginfo_t *__infop,
 #endif
 
 #if defined __USE_BSD || defined __USE_XOPEN_EXTENDED
+struct rusage;
 /* Wait for a child to exit.  When one does, put its status in *STAT_LOC and
    return its process ID.  For errors return (pid_t) -1.  If USAGE is not
    nil, store information about the child's resource usage there.  If the
    WUNTRACED bit is set in OPTIONS, return status for stopped children;
    otherwise don't.  */
 extern __pid_t wait3 (__WAIT_STATUS __stat_loc, int __options,
-		      struct rusage * __usage) __THROW;
+		      struct rusage * __usage) __THROWNL;
 #endif
 
 #ifdef __USE_BSD
 /* PID is like waitpid.  Other args are like wait3.  */
 extern __pid_t wait4 (__pid_t __pid, __WAIT_STATUS __stat_loc, int __options,
-		      struct rusage *__usage) __THROW;
+		      struct rusage *__usage) __THROWNL;
 #endif /* Use BSD.  */
 
 #ifdef _LIBC