[PATCH] uml: separate libc-dependent early initialization

The serial UML OS-abstraction layer patch (um/kernel dir).

This moves all systemcalls from main.c file under os-Linux dir and joins mem.c
and um_arch.c files.

Signed-off-by: Gennady Sharapov <Gennady.V.Sharapov@intel.com>
Signed-off-by: Jeff Dike <jdike@addtoit.com>
Cc: Paolo Giarrusso <blaisorblade@yahoo.it>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

3 files changed, 25 insertions, 36 deletions

diff --git a/arch/um/kernel/Makefile b/arch/um/kernel/Makefile
index 72fd4eada9ca..f9858583863a 100644
--- a/arch/um/kernel/Makefile
+++ b/arch/um/kernel/Makefile
@@ -7,7 +7,7 @@ extra-y := vmlinux.lds
 clean-files :=
 
 obj-y = config.o exec_kern.o exitcode.o \
-        helper.o init_task.o irq.o irq_user.o ksyms.o main.o mem.o physmem.o \
+        helper.o init_task.o irq.o irq_user.o ksyms.o mem.o physmem.o \
         process_kern.o ptrace.o reboot.o resource.o sigio_user.o sigio_kern.o \
         signal_kern.o signal_user.o smp.o syscall_kern.o sysrq.o time.o \
         time_kern.o tlb.o trap_kern.o trap_user.o uaccess.o um_arch.o \
@@ -24,7 +24,7 @@ obj-$(CONFIG_MODE_SKAS) += skas/
 
 user-objs-$(CONFIG_TTY_LOG) += tty_log.o
 
-USER_OBJS := $(user-objs-y) config.o helper.o main.o time.o tty_log.o umid.o \
+USER_OBJS := $(user-objs-y) config.o helper.o time.o tty_log.o umid.o \
         user_util.o
 
 include arch/um/scripts/Makefile.rules
diff --git a/arch/um/os-Linux/Makefile b/arch/um/os-Linux/Makefile
index d389c58b18b2..0b761a08f0df 100644
--- a/arch/um/os-Linux/Makefile
+++ b/arch/um/os-Linux/Makefile
@@ -3,11 +3,11 @@
 # Licensed under the GPL
 #
 
-obj-y = aio.o elf_aux.o file.o mem.o process.o signal.o start_up.o time.o \
-        tt.o tty.o uaccess.o user_syms.o drivers/ sys-$(SUBARCH)/
+obj-y = aio.o elf_aux.o file.o main.o mem.o process.o signal.o start_up.o \
+        time.o tt.o tty.o uaccess.o user_syms.o drivers/ sys-$(SUBARCH)/
 
-USER_OBJS := aio.o elf_aux.o file.o mem.o process.o signal.o start_up.o \
-        time.o tt.o tty.o uaccess.o
+USER_OBJS := aio.o elf_aux.o file.o main.o mem.o process.o signal.o \
+        start_up.o time.o tt.o tty.o uaccess.o
 
 elf_aux.o: $(ARCH_DIR)/kernel-offsets.h
 CFLAGS_elf_aux.o += -I$(objtree)/arch/um
diff --git a/arch/um/kernel/main.c b/arch/um/os-Linux/main.c
index d31027f0fe39..23da27d22569 100644
--- a/arch/um/kernel/main.c
+++ b/arch/um/os-Linux/main.c
@@ -157,25 +157,25 @@ int main(int argc, char **argv, char **envp)
          */
         change_sig(SIGPROF, 0);
 
-        /* This signal stuff used to be in the reboot case.  However,
-         * sometimes a SIGVTALRM can come in when we're halting (reproducably
-         * when writing out gcov information, presumably because that takes
-         * some time) and cause a segfault.
-         */
-
-        /* stop timers and set SIG*ALRM to be ignored */
-        disable_timer();
-
-        /* disable SIGIO for the fds and set SIGIO to be ignored */
-        err = deactivate_all_fds();
-        if(err)
-                printf("deactivate_all_fds failed, errno = %d\n", -err);
-
-        /* Let any pending signals fire now.  This ensures
-         * that they won't be delivered after the exec, when
-         * they are definitely not expected.
-         */
-        unblock_signals();
+        /* This signal stuff used to be in the reboot case.  However,
+         * sometimes a SIGVTALRM can come in when we're halting (reproducably
+         * when writing out gcov information, presumably because that takes
+         * some time) and cause a segfault.
+         */
+
+        /* stop timers and set SIG*ALRM to be ignored */
+        disable_timer();
+
+        /* disable SIGIO for the fds and set SIGIO to be ignored */
+        err = deactivate_all_fds();
+        if(err)
+                printf("deactivate_all_fds failed, errno = %d\n", -err);
+
+        /* Let any pending signals fire now.  This ensures
+         * that they won't be delivered after the exec, when
+         * they are definitely not expected.
+         */
+        unblock_signals();
 
         /* Reboot */
         if(ret){
@@ -257,14 +257,3 @@ void __wrap_free(void *ptr)
         }
         else __real_free(ptr);
 }
-
-/*
- * Overrides for Emacs so that we follow Linus's tabbing style.
- * Emacs will notice this stuff at the end of the file and automatically
- * adjust the settings for this buffer only.  This must remain at the end
- * of the file.
- * ---------------------------------------------------------------------------
- * Local variables:
- * c-file-style: "linux"
- * End:
- */