From: Thomas Gleixner <tglx@linutronix.de>
Date: Thu, 11 Oct 2007 09:13:29 +0000 (+0200)
Subject: i386: prepare shared lib/getuser.S
X-Git-Tag: firefly_0821_release~26252
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=8b7fd47bdf84086914180b88a41d2f7c1ada5917;p=firefly-linux-kernel-4.4.55.git

i386: prepare shared lib/getuser.S

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
---

diff --git a/arch/i386/lib/Makefile b/arch/i386/lib/Makefile
index 553c41d2d79b..968d2e51d39a 100644
--- a/arch/i386/lib/Makefile
+++ b/arch/i386/lib/Makefile
@@ -3,7 +3,7 @@
 #
 
 
-lib-y = checksum_32.o delay.o usercopy.o getuser.o putuser.o memcpy_32.o strstr_32.o \
+lib-y = checksum_32.o delay.o usercopy.o getuser_32.o putuser.o memcpy_32.o strstr_32.o \
 	bitops.o semaphore_32.o string_32.o
 
 lib-$(CONFIG_X86_USE_3DNOW) += mmx_32.o
diff --git a/arch/i386/lib/getuser.S b/arch/i386/lib/getuser.S
deleted file mode 100644
index 6d84b53f12a2..000000000000
--- a/arch/i386/lib/getuser.S
+++ /dev/null
@@ -1,78 +0,0 @@
-/*
- * __get_user functions.
- *
- * (C) Copyright 1998 Linus Torvalds
- *
- * These functions have a non-standard call interface
- * to make them more efficient, especially as they
- * return an error value in addition to the "real"
- * return value.
- */
-#include <linux/linkage.h>
-#include <asm/dwarf2.h>
-#include <asm/thread_info.h>
-
-
-/*
- * __get_user_X
- *
- * Inputs:	%eax contains the address
- *
- * Outputs:	%eax is error code (0 or -EFAULT)
- *		%edx contains zero-extended value
- *
- * These functions should not modify any other registers,
- * as they get called from within inline assembly.
- */
-
-.text
-ENTRY(__get_user_1)
-	CFI_STARTPROC
-	GET_THREAD_INFO(%edx)
-	cmpl TI_addr_limit(%edx),%eax
-	jae bad_get_user
-1:	movzbl (%eax),%edx
-	xorl %eax,%eax
-	ret
-	CFI_ENDPROC
-ENDPROC(__get_user_1)
-
-ENTRY(__get_user_2)
-	CFI_STARTPROC
-	addl $1,%eax
-	jc bad_get_user
-	GET_THREAD_INFO(%edx)
-	cmpl TI_addr_limit(%edx),%eax
-	jae bad_get_user
-2:	movzwl -1(%eax),%edx
-	xorl %eax,%eax
-	ret
-	CFI_ENDPROC
-ENDPROC(__get_user_2)
-
-ENTRY(__get_user_4)
-	CFI_STARTPROC
-	addl $3,%eax
-	jc bad_get_user
-	GET_THREAD_INFO(%edx)
-	cmpl TI_addr_limit(%edx),%eax
-	jae bad_get_user
-3:	movl -3(%eax),%edx
-	xorl %eax,%eax
-	ret
-	CFI_ENDPROC
-ENDPROC(__get_user_4)
-
-bad_get_user:
-	CFI_STARTPROC
-	xorl %edx,%edx
-	movl $-14,%eax
-	ret
-	CFI_ENDPROC
-END(bad_get_user)
-
-.section __ex_table,"a"
-	.long 1b,bad_get_user
-	.long 2b,bad_get_user
-	.long 3b,bad_get_user
-.previous
diff --git a/arch/i386/lib/getuser_32.S b/arch/i386/lib/getuser_32.S
new file mode 100644
index 000000000000..6d84b53f12a2
--- /dev/null
+++ b/arch/i386/lib/getuser_32.S
@@ -0,0 +1,78 @@
+/*
+ * __get_user functions.
+ *
+ * (C) Copyright 1998 Linus Torvalds
+ *
+ * These functions have a non-standard call interface
+ * to make them more efficient, especially as they
+ * return an error value in addition to the "real"
+ * return value.
+ */
+#include <linux/linkage.h>
+#include <asm/dwarf2.h>
+#include <asm/thread_info.h>
+
+
+/*
+ * __get_user_X
+ *
+ * Inputs:	%eax contains the address
+ *
+ * Outputs:	%eax is error code (0 or -EFAULT)
+ *		%edx contains zero-extended value
+ *
+ * These functions should not modify any other registers,
+ * as they get called from within inline assembly.
+ */
+
+.text
+ENTRY(__get_user_1)
+	CFI_STARTPROC
+	GET_THREAD_INFO(%edx)
+	cmpl TI_addr_limit(%edx),%eax
+	jae bad_get_user
+1:	movzbl (%eax),%edx
+	xorl %eax,%eax
+	ret
+	CFI_ENDPROC
+ENDPROC(__get_user_1)
+
+ENTRY(__get_user_2)
+	CFI_STARTPROC
+	addl $1,%eax
+	jc bad_get_user
+	GET_THREAD_INFO(%edx)
+	cmpl TI_addr_limit(%edx),%eax
+	jae bad_get_user
+2:	movzwl -1(%eax),%edx
+	xorl %eax,%eax
+	ret
+	CFI_ENDPROC
+ENDPROC(__get_user_2)
+
+ENTRY(__get_user_4)
+	CFI_STARTPROC
+	addl $3,%eax
+	jc bad_get_user
+	GET_THREAD_INFO(%edx)
+	cmpl TI_addr_limit(%edx),%eax
+	jae bad_get_user
+3:	movl -3(%eax),%edx
+	xorl %eax,%eax
+	ret
+	CFI_ENDPROC
+ENDPROC(__get_user_4)
+
+bad_get_user:
+	CFI_STARTPROC
+	xorl %edx,%edx
+	movl $-14,%eax
+	ret
+	CFI_ENDPROC
+END(bad_get_user)
+
+.section __ex_table,"a"
+	.long 1b,bad_get_user
+	.long 2b,bad_get_user
+	.long 3b,bad_get_user
+.previous