[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>

diff --git a/arch/arm/kernel/armksyms.c b/arch/arm/kernel/armksyms.c
index 9997098009a9941ff63c025c23be09aa56b6ccbf..1574941ebfe187f75f46df9de64fe905739b6747 100644 (file)
--- 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 561e20717b30ccf1280a50a1f3babc1a8d3670d3..55e57a1c2e6ddb756e2e73ba7098f7f5d6fa74e8 100644 (file)
--- 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 86fb2a90c30144779a4b620c1978df8c802ab83a..0b31398f89b2ebf7b61549daa9b3befa10cc35cd 100644 (file)
--- 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 4964e5bafa0fab227ea8ebb99d4d3cde2ff0bf01..4e492f4b3f0e48cf1ca14229fc318627a6edc8c2 100644 (file)
--- 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 46c2ed19ec95e2cee4573c052525af2ca5c46f42..a86dbdd59cc4414bbd2a8abaf1f4eab7c3a58237 100644 (file)
--- 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 c7fbdf005319ebda1060f1f891e32c50b88c831f..72d594184b8a942bedc437453365b2bb8e970d3e 100644 (file)
--- 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 112630f93e5dda85abc646377876b7dcfabf1745..d847a62834cb134492b058b85760e032b0b665b1 100644 (file)
--- 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
+