From e32dacb9f481fd6decb41adb28e720c923d34f54 Mon Sep 17 00:00:00 2001
From: Jeff Dike <jdike@addtoit.com>
Date: Sat, 3 Sep 2005 15:57:42 -0700
Subject: [PATCH] uml: system call path cleanup

This merges two sets of files which had no business being split apart in the
first place.

Signed-off-by: Jeff Dike <jdike@addtoit.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
---
 arch/um/kernel/tt/syscall_kern.c | 47 ++++++++++++++++++++++------------------
 arch/um/kernel/tt/syscall_user.c | 35 +-----------------------------
 2 files changed, 27 insertions(+), 55 deletions(-)

(limited to 'arch/um/kernel/tt')

diff --git a/arch/um/kernel/tt/syscall_kern.c b/arch/um/kernel/tt/syscall_kern.c
index 2650a628719..3d29c90514c 100644
--- a/arch/um/kernel/tt/syscall_kern.c
+++ b/arch/um/kernel/tt/syscall_kern.c
@@ -12,36 +12,41 @@
 #include "asm/uaccess.h"
 #include "asm/stat.h"
 #include "sysdep/syscalls.h"
+#include "sysdep/sigcontext.h"
 #include "kern_util.h"
+#include "syscall.h"
 
-extern syscall_handler_t *sys_call_table[];
-
-long execute_syscall_tt(void *r)
+void syscall_handler_tt(int sig, struct pt_regs *regs)
 {
-	struct pt_regs *regs = r;
-	long res;
+	void *sc;
+	long result;
 	int syscall;
-
 #ifdef CONFIG_SYSCALL_DEBUG
+	int index;
+  	index = record_syscall_start(syscall);
+#endif
+	sc = UPT_SC(&regs->regs);
+	SC_START_SYSCALL(sc);
+
+	syscall_trace(&regs->regs, 0);
+
 	current->thread.nsyscalls++;
 	nsyscalls++;
-#endif
 	syscall = UPT_SYSCALL_NR(&regs->regs);
 
 	if((syscall >= NR_syscalls) || (syscall < 0))
-		res = -ENOSYS;
-	else res = EXECUTE_SYSCALL(syscall, regs);
+		result = -ENOSYS;
+	else result = EXECUTE_SYSCALL(syscall, regs);
 
-	return(res);
-}
+	/* regs->sc may have changed while the system call ran (there may
+	 * have been an interrupt or segfault), so it needs to be refreshed.
+	 */
+	UPT_SC(&regs->regs) = sc;
 
-/*
- * 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:
- */
+	SC_SET_SYSCALL_RETURN(sc, result);
+
+	syscall_trace(&regs->regs, 1);
+#ifdef CONFIG_SYSCALL_DEBUG
+  	record_syscall_end(index, result);
+#endif
+}
diff --git a/arch/um/kernel/tt/syscall_user.c b/arch/um/kernel/tt/syscall_user.c
index b218316cfdb..902987bf379 100644
--- a/arch/um/kernel/tt/syscall_user.c
+++ b/arch/um/kernel/tt/syscall_user.c
@@ -13,42 +13,9 @@
 #include "task.h"
 #include "user_util.h"
 #include "kern_util.h"
-#include "syscall_user.h"
+#include "syscall.h"
 #include "tt.h"
 
-
-void syscall_handler_tt(int sig, union uml_pt_regs *regs)
-{
-	void *sc;
-	long result;
-	int syscall;
-#ifdef UML_CONFIG_DEBUG_SYSCALL
-	int index;
-#endif
-
-	syscall = UPT_SYSCALL_NR(regs);
-	sc = UPT_SC(regs);
-	SC_START_SYSCALL(sc);
-
-#ifdef UML_CONFIG_DEBUG_SYSCALL
-  	index = record_syscall_start(syscall);
-#endif
-	syscall_trace(regs, 0);
-	result = execute_syscall_tt(regs);
-
-	/* regs->sc may have changed while the system call ran (there may
-	 * have been an interrupt or segfault), so it needs to be refreshed.
-	 */
-	UPT_SC(regs) = sc;
-
-	SC_SET_SYSCALL_RETURN(sc, result);
-
-	syscall_trace(regs, 1);
-#ifdef UML_CONFIG_DEBUG_SYSCALL
-  	record_syscall_end(index, result);
-#endif
-}
-
 void do_sigtrap(void *task)
 {
 	UPT_SYSCALL_NR(TASK_REGS(task)) = -1;
-- 
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