Merge remote-tracking branch 'private/port-gcc-restart' into port-gcc-restart

cross/patch/gcc.patch

@@ -11,6 +11,7 @@ index ddd3b8f..702aa59 100644
 +  gnu_ld=yes
 +  tmake_file=t-jehanne
 +  extra_objs="${extra_objs} jehanne.o"
++  extra_gcc_objs="${extra_gcc_objs} jehanne.o"
 +  default_use_cxa_atexit=yes
 +  case $target in
 +  x86_64-*)

cross/patch/gcc/gcc/config/jehanne.c

@@ -21,9 +21,11 @@ extern "C" {
 #include <libc.h>
 #include <posix.h>
 
+void __application_newlib_init(int argc, char *argv[]);
+
 }
 
-void
+__attribute__((__used__)) void
 __application_newlib_init(int argc, char *argv[])
 {
 	sys_rfork(RFFDG | RFREND | RFNOTEG);