From ba95e4e4a0a8a3c6aba363d45f78d5f2e2d111eb Mon Sep 17 00:00:00 2001
From: Nicolas Pitre <nico@cam.org>
Date: Sat, 14 Jan 2006 16:18:29 +0000
Subject: [PATCH] [ARM] 3104/1: ARM EABI: new helper function names

Patch from Nicolas Pitre

The ARM EABI defines new names for GCC helper functions.

Signed-off-by: Nicolas Pitre <nico@cam.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/kernel/armksyms.c | 22 ++++++++++++++++++++++
 arch/arm/lib/ashldi3.S     |  1 +
 arch/arm/lib/ashrdi3.S     |  1 +
 arch/arm/lib/lib1funcs.S   | 23 +++++++++++++++++++++++
 arch/arm/lib/lshrdi3.S     |  1 +
 arch/arm/lib/muldi3.S      |  1 +
 arch/arm/lib/ucmpdi2.S     | 14 ++++++++++++++
 7 files changed, 63 insertions(+)

diff --git a/arch/arm/kernel/armksyms.c b/arch/arm/kernel/armksyms.c
index 9997098009a9..1574941ebfe1 100644
--- a/arch/arm/kernel/armksyms.c
+++ b/arch/arm/kernel/armksyms.c
@@ -35,6 +35,16 @@ extern void __udivsi3(void);
 extern void __umodsi3(void);
 extern void __do_div64(void);
 
+extern void __aeabi_idiv(void);
+extern void __aeabi_idivmod(void);
+extern void __aeabi_lasr(void);
+extern void __aeabi_llsl(void);
+extern void __aeabi_llsr(void);
+extern void __aeabi_lmul(void);
+extern void __aeabi_uidiv(void);
+extern void __aeabi_uidivmod(void);
+extern void __aeabi_ulcmp(void);
+
 extern void fpundefinstr(void);
 extern void fp_enter(void);
 
@@ -141,6 +151,18 @@ EXPORT_SYMBOL(__udivsi3);
 EXPORT_SYMBOL(__umodsi3);
 EXPORT_SYMBOL(__do_div64);
 
+#ifdef CONFIG_AEABI
+EXPORT_SYMBOL(__aeabi_idiv);
+EXPORT_SYMBOL(__aeabi_idivmod);
+EXPORT_SYMBOL(__aeabi_lasr);
+EXPORT_SYMBOL(__aeabi_llsl);
+EXPORT_SYMBOL(__aeabi_llsr);
+EXPORT_SYMBOL(__aeabi_lmul);
+EXPORT_SYMBOL(__aeabi_uidiv);
+EXPORT_SYMBOL(__aeabi_uidivmod);
+EXPORT_SYMBOL(__aeabi_ulcmp);
+#endif
+
 	/* bitops */
 EXPORT_SYMBOL(_set_bit_le);
 EXPORT_SYMBOL(_test_and_set_bit_le);
diff --git a/arch/arm/lib/ashldi3.S b/arch/arm/lib/ashldi3.S
index 561e20717b30..55e57a1c2e6d 100644
--- a/arch/arm/lib/ashldi3.S
+++ b/arch/arm/lib/ashldi3.S
@@ -37,6 +37,7 @@ Boston, MA 02110-1301, USA.  */
 #endif
 
 ENTRY(__ashldi3)
+ENTRY(__aeabi_llsl)
 
 	subs	r3, r2, #32
 	rsb	ip, r2, #32
diff --git a/arch/arm/lib/ashrdi3.S b/arch/arm/lib/ashrdi3.S
index 86fb2a90c301..0b31398f89b2 100644
--- a/arch/arm/lib/ashrdi3.S
+++ b/arch/arm/lib/ashrdi3.S
@@ -37,6 +37,7 @@ Boston, MA 02110-1301, USA.  */
 #endif
 
 ENTRY(__ashrdi3)
+ENTRY(__aeabi_lasr)
 
 	subs	r3, r2, #32
 	rsb	ip, r2, #32
diff --git a/arch/arm/lib/lib1funcs.S b/arch/arm/lib/lib1funcs.S
index 4964e5bafa0f..4e492f4b3f0e 100644
--- a/arch/arm/lib/lib1funcs.S
+++ b/arch/arm/lib/lib1funcs.S
@@ -206,6 +206,7 @@ Boston, MA 02111-1307, USA.  */
 
 
 ENTRY(__udivsi3)
+ENTRY(__aeabi_uidiv)
 
 	subs	r2, r1, #1
 	moveq	pc, lr
@@ -246,6 +247,7 @@ ENTRY(__umodsi3)
 
 
 ENTRY(__divsi3)
+ENTRY(__aeabi_idiv)
 
 	cmp	r1, #0
 	eor	ip, r0, r1			@ save the sign of the result.
@@ -303,6 +305,27 @@ ENTRY(__modsi3)
 	rsbmi	r0, r0, #0
 	mov	pc, lr
 
+#ifdef CONFIG_AEABI
+
+ENTRY(__aeabi_uidivmod)
+
+	stmfd	sp!, {r0, r1, ip, lr}
+	bl	__aeabi_uidiv
+	ldmfd	sp!, {r1, r2, ip, lr}
+	mul	r3, r0, r2
+	sub	r1, r1, r3
+	mov	pc, lr
+
+ENTRY(__aeabi_idivmod)
+
+	stmfd	sp!, {r0, r1, ip, lr}
+	bl	__aeabi_idiv
+	ldmfd	sp!, {r1, r2, ip, lr}
+	mul	r3, r0, r2
+	sub	r1, r1, r3
+	mov	pc, lr
+
+#endif
 
 Ldiv0:
 
diff --git a/arch/arm/lib/lshrdi3.S b/arch/arm/lib/lshrdi3.S
index 46c2ed19ec95..a86dbdd59cc4 100644
--- a/arch/arm/lib/lshrdi3.S
+++ b/arch/arm/lib/lshrdi3.S
@@ -37,6 +37,7 @@ Boston, MA 02110-1301, USA.  */
 #endif
 
 ENTRY(__lshrdi3)
+ENTRY(__aeabi_llsr)
 
 	subs	r3, r2, #32
 	rsb	ip, r2, #32
diff --git a/arch/arm/lib/muldi3.S b/arch/arm/lib/muldi3.S
index c7fbdf005319..72d594184b8a 100644
--- a/arch/arm/lib/muldi3.S
+++ b/arch/arm/lib/muldi3.S
@@ -25,6 +25,7 @@
 #endif
 
 ENTRY(__muldi3)
+ENTRY(__aeabi_lmul)
 
 	mul	xh, yl, xh
 	mla	xh, xl, yh, xh
diff --git a/arch/arm/lib/ucmpdi2.S b/arch/arm/lib/ucmpdi2.S
index 112630f93e5d..d847a62834cb 100644
--- a/arch/arm/lib/ucmpdi2.S
+++ b/arch/arm/lib/ucmpdi2.S
@@ -10,6 +10,7 @@
  *  published by the Free Software Foundation.
  */
 
+#include <linux/config.h>
 #include <linux/linkage.h>
 
 #ifdef __ARMEB__
@@ -33,3 +34,16 @@ ENTRY(__ucmpdi2)
 	movhi	r0, #2
 	mov	pc, lr
 
+#ifdef CONFIG_AEABI
+
+ENTRY(__aeabi_ulcmp)
+
+	cmp	xh, yh
+	cmpeq	xl, yl
+	movlo	r0, #-1
+	moveq	r0, #0
+	movhi	r0, #1
+	mov	pc, lr
+
+#endif
+