2008-10-23  Mike Frysinger  <vapier@gentoo.org>

	Port strace to the Blackfin architecture.
	* configure.ac: Add bfin to supported architectures.
	* process.c: Skip u_fpvalid/u_fpstate for Blackfin architecture.
	(change_syscall): Support Blackfin architecture.
	* syscall.c: Declare r0 for Blackfin architecture.
	(get_scno): Decode Blackfin syscall number.
	(syscall_fixup): Extract Blackfin return value.
	(get_error): Decode Blackfin return value.
	(force_result): Poke Blackfin return value.
	(syscall_enter): Extract Blackfin syscall arguments.
	* defs.h: Define TCB_WAITEXECVE for Blackfin architecture.
	* linux/syscall.h (sys_sram_alloc): Declare for Blackfin
	architecture.
	* system.c (sys_sram_alloc): Decode Blackfin sram_alloc() syscall.
	* util.c (getpc): Handle PC on Blackfin architecture.
	(printcall): Likewise.
	* linux/bfin/ioctlent.h, linux/bfin/syscallent.h: New Blackfin
	headers.
	* Makefile.am (EXTRA_DIST): Add linux/bfin/ioctlent.h and
	linux/bfin/syscallent.h.
diff --git a/configure.ac b/configure.ac
index 9852e20..3554ab6 100644
--- a/configure.ac
+++ b/configure.ac
@@ -43,6 +43,10 @@
 
 AC_MSG_CHECKING([for supported architecture])
 case "$host_cpu" in
+bfin)
+	arch=bfin
+	AC_DEFINE([BFIN], 1, [Define for the Blackfin architecture.])
+	;;
 i[[3456]]86|pentium)
 	arch=i386
 	AC_DEFINE([I386], 1, [Define for the i386 architecture.])