alpha, ia64, sh, sparc, sparc64: fix pipe and pipe2 syscalls decoding
Fix pipe syscall decoding on alpha.
Fix pipe2 syscall decoding on ia64, sh, sparc, and sparc64.
* configure.ac (AC_CHECK_FUNCS): Add pipe2.
* defs.h [ALPHA || IA64 || SH || SPARC || SPARC64] (HAVE_GETRVAL2):
Define.
* net.c (do_pipe): Check HAVE_GETRVAL2 instead of architecture macros.
Do not use getrval2 for pipe2 decoding.
Print address if umove call fails.
* syscall.c (getrval2): Check HAVE_GETRVAL2 instead of architecture
macros. Implement for [ALPHA].
* tests/pipe.c: New file.
* tests/pipe.expected: New file.
* tests/pipe.test: New test.
* tests/Makefile.am (check_PROGRAMS): Add pipe.
(TESTS): Add pipe.test.
(EXTRA_DIST): Add pipe.expected.
* tests/.gitignore: Add pipe.
diff --git a/defs.h b/defs.h
index 4f6bbd9..5d2a76e 100644
--- a/defs.h
+++ b/defs.h
@@ -424,8 +424,12 @@
umoven((pid), (addr), sizeof(*(objp)), (void *) (objp))
extern int umovestr(struct tcb *, long, unsigned int, char *);
extern int upeek(int pid, long, long *);
-#if defined(SPARC) || defined(SPARC64) || defined(IA64) || defined(SH)
+
+#if defined ALPHA || defined IA64 || defined SH || defined SPARC || defined SPARC64
+# define HAVE_GETRVAL2
extern long getrval2(struct tcb *);
+#else
+# undef HAVE_GETRVAL2
#endif
extern const char *signame(const int);