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Re: [Xen-devel] [RFC 3/7] arm64:armds: ARM Compiler 6.6 does not accept `rx` registers naming for AArch64
Hi,
Aside what Stefano and Jan already said. Please, reword the commit title. It should reflect what the commit does not describe the error (this should part of the message).
Please provide a link to the documentation so this can be cross-checked.
Cheers,
Signed-off-by: Andrii Anisov <andrii_anisov@xxxxxxxx>
---
xen/include/asm-arm/smccc.h | 60 +++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 60 insertions(+)
diff --git a/xen/include/asm-arm/smccc.h b/xen/include/asm-arm/smccc.h
index 126399d..3fa1144 100644
--- a/xen/include/asm-arm/smccc.h
+++ b/xen/include/asm-arm/smccc.h
@@ -120,6 +120,8 @@ struct arm_smccc_res {
#define __constraint_read_6 __constraint_read_5, "r" (r6)
#define __constraint_read_7 __constraint_read_6, "r" (r7)
+#ifdef CONFIG_ARM_32
+
#define __declare_arg_0(a0, res) \
struct arm_smccc_res *___res = res; \
register unsigned long r0 asm("r0") = (uint32_t)a0;\
@@ -174,6 +176,64 @@ struct arm_smccc_res {
__declare_arg_6(a0, a1, a2, a3, a4, a5, a6, res); \
register typeof(a7) r7 asm("r7") = __a7
+#else /* ARM_64 */
+
+#define __declare_arg_0(a0, res) \
+ struct arm_smccc_res *___res = res; \
+ register unsigned long r0 asm("x0") = (uint32_t)a0;\
+ register unsigned long r1 asm("x1"); \
+ register unsigned long r2 asm("x2"); \
+ register unsigned long r3 asm("x3")
+
+#define __declare_arg_1(a0, a1, res) \
+ typeof(a1) __a1 = a1; \
+ struct arm_smccc_res *___res = res; \
+ register unsigned long r0 asm("x0") = (uint32_t)a0;\
+ register unsigned long r1 asm("x1") = __a1; \
+ register unsigned long r2 asm("x2"); \
+ register unsigned long r3 asm("x3")
+
+#define __declare_arg_2(a0, a1, a2, res) \
+ typeof(a1) __a1 = a1; \
+ typeof(a2) __a2 = a2; \
+ struct arm_smccc_res *___res = res; \
+ register unsigned long r0 asm("x0") = (uint32_t)a0;\
+ register unsigned long r1 asm("x1") = __a1; \
+ register unsigned long r2 asm("x2") = __a2; \
+ register unsigned long r3 asm("x3")
+
+#define __declare_arg_3(a0, a1, a2, a3, res) \
+ typeof(a1) __a1 = a1; \
+ typeof(a2) __a2 = a2; \
+ typeof(a3) __a3 = a3; \
+ struct arm_smccc_res *___res = res; \
+ register unsigned long r0 asm("x0") = (uint32_t)a0;\
+ register unsigned long r1 asm("x1") = __a1; \
+ register unsigned long r2 asm("x2") = __a2; \
+ register unsigned long r3 asm("x3") = __a3
+
+#define __declare_arg_4(a0, a1, a2, a3, a4, res) \
+ typeof(a4) __a4 = a4; \
+ __declare_arg_3(a0, a1, a2, a3, res); \
+ register unsigned long r4 asm("x4") = __a4
+
+#define __declare_arg_5(a0, a1, a2, a3, a4, a5, res) \
+ typeof(a5) __a5 = a5; \
+ __declare_arg_4(a0, a1, a2, a3, a4, res); \
+ register typeof(a5) r5 asm("x5") = __a5
+
+#define __declare_arg_6(a0, a1, a2, a3, a4, a5, a6, res) \
+ typeof(a6) __a6 = a6; \
+ __declare_arg_5(a0, a1, a2, a3, a4, a5, res); \
+ register typeof(a6) r6 asm("x6") = __a6
+
+#define __declare_arg_7(a0, a1, a2, a3, a4, a5, a6, a7, res) \
+ typeof(a7) __a7 = a7; \
+ __declare_arg_6(a0, a1, a2, a3, a4, a5, a6, res); \
+ register typeof(a7) r7 asm("x7") = __a7
+
+#endif
+
#define ___declare_args(count, ...) __declare_arg_ ## count(__VA_ARGS__)
#define __declare_args(count, ...) ___declare_args(count, __VA_ARGS__)
--
2.7.4
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