Alexandre Julliard : rpcrt4: Support stubless proxies on ARM.

[Alexandre Julliard]

Module: wine
Branch: master
Commit: da383cb8e4fe62da4e638b6295e6041170344656
URL:    https://source.winehq.org/git/wine.git/?a=commit;h=da383cb8e4fe62da4e638b6295e6041170344656

Author: Alexandre Julliard <julliard at winehq.org>
Date:   Tue Nov 13 16:07:49 2018 +0100

rpcrt4: Support stubless proxies on ARM.

Signed-off-by: Alexandre Julliard <julliard at winehq.org>

---

 dlls/rpcrt4/cproxy.c      | 45 +++++++++++++++++++++++++++++++++++++++++++--
 dlls/rpcrt4/ndr_typelib.c |  6 +++---
 2 files changed, 46 insertions(+), 5 deletions(-)

diff --git a/dlls/rpcrt4/cproxy.c b/dlls/rpcrt4/cproxy.c
index ab24b81..56ef84d 100644
--- a/dlls/rpcrt4/cproxy.c
+++ b/dlls/rpcrt4/cproxy.c
@@ -17,8 +17,6 @@
  * You should have received a copy of the GNU Lesser General Public
  * License along with this library; if not, write to the Free Software
  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
- * 
- * TODO: Handle non-i386 architectures
  */
 
 #include "config.h"
@@ -155,6 +153,49 @@ static inline void init_thunk( struct thunk *thunk, unsigned int index )
     thunk->call_stubless = call_stubless_func;
 }
 
+#elif defined(__arm__)
+
+extern void call_stubless_func(void);
+__ASM_GLOBAL_FUNC(call_stubless_func,
+                  "push {r0-r3}\n\t"
+                  "mov r2, sp\n\t"              /* stack_top */
+                  "push {fp,lr}\n\t"
+                  "mov fp, sp\n\t"
+                  "ldr r0, [r0]\n\t"            /* This->lpVtbl */
+                  "ldr r0, [r0,#-8]\n\t"        /* MIDL_STUBLESS_PROXY_INFO */
+                  "ldr r1, [r0,#8]\n\t"         /* info->FormatStringOffset */
+                  "ldrh r1, [r1,ip]\n\t"        /* info->FormatStringOffset[index] */
+                  "ldr ip, [r0,#4]\n\t"         /* info->ProcFormatString */
+                  "add r1, ip\n\t"              /* info->ProcFormatString + offset */
+                  "ldr r0, [r0]\n\t"            /* info->pStubDesc */
+#ifdef __SOFTFP__
+                  "mov r3, #0\n\t"
+#else
+                  "vpush {s0-s15}\n\t"          /* store the s0-s15/d0-d7 arguments */
+                  "mov r3, sp\n\t"              /* fpu_stack */
+#endif
+                  "bl " __ASM_NAME("ndr_client_call") "\n\t"
+                  "mov sp, fp\n\t"
+                  "pop {fp,lr}\n\t"
+                  "add sp, #16\n\t"
+                  "bx lr" );
+
+struct thunk
+{
+    DWORD ldr_ip;         /* ldr ip,[pc] */
+    DWORD ldr_pc;         /* ldr pc,[pc] */
+    DWORD index;
+    void *func;
+};
+
+static inline void init_thunk( struct thunk *thunk, unsigned int index )
+{
+    thunk->ldr_ip = 0xe59fc000; /* ldr ip,[pc] */
+    thunk->ldr_pc = 0xe59ff000; /* ldr pc,[pc] */
+    thunk->index  = index * sizeof(unsigned short);
+    thunk->func   = call_stubless_func;
+}
+
 #else  /* __i386__ */
 
 #warning You must implement stubless proxies for your CPU
diff --git a/dlls/rpcrt4/ndr_typelib.c b/dlls/rpcrt4/ndr_typelib.c
index f68e61e..215ea7d 100644
--- a/dlls/rpcrt4/ndr_typelib.c
+++ b/dlls/rpcrt4/ndr_typelib.c
@@ -579,7 +579,7 @@ static HRESULT get_param_info(ITypeInfo *typeinfo, TYPEDESC *tdesc, int is_in,
     switch (tdesc->vt)
     {
     case VT_VARIANT:
-#ifndef __i386__
+#if !defined(__i386__) && !defined(__arm__)
         *flags |= IsSimpleRef | MustFree;
         break;
 #endif
@@ -608,9 +608,9 @@ static HRESULT get_param_info(ITypeInfo *typeinfo, TYPEDESC *tdesc, int is_in,
             *basetype = FC_ENUM32;
             break;
         case TKIND_RECORD:
-#ifdef __i386__
+#if defined(__i386__) || defined(__arm__)
             *flags |= IsByValue | MustFree;
-#elif defined(__x86_64__)
+#else
             if (attr->cbSizeInstance <= 8)
                 *flags |= IsByValue | MustFree;
             else