iOS, moved privateSnippetExecutor from asm to C function.

move asm code to C as first step towards reducing the asm code.
Since iOS does not permit java/python or anything else than the
compiled C++ code, the throw should be done simpler.

Apart from that this is the first step in solving a stack
corruption problem in the throw code

Change-Id: I4f3d3a3ba3f55fb46131d9a8eeb0deebf179d95f

bridges/source/cpp_uno/gcc3_ios/cpp2uno.cxx

@@ -17,14 +17,6 @@
  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
  */
 
-// For iOS devices (64-bit ARM). Originally a copy of
-// ../gcc3_linux_arm/cpp2uno.cxx.
-
-// No attempts at factoring out the large amounts of more or less
-// common code in this, cpp2uno-arm.cxx and cpp2uno-i386.cxx have been
-// done. Which is sad. But then the whole bridges/source/cpp_uno is
-// full of copy/paste. So I continue in that tradition...
-
 #include <com/sun/star/uno/RuntimeException.hpp>
 #include <sal/log.hxx>
 #include <uno/data.h>
@@ -37,6 +29,42 @@
 
 #include "share.hxx"
 
+
+// Snippet code done inline
+extern "C" void privateSnippetExecutor()
+{
+    // _privateSnippetExecutor is jumped to from each codeSnippet_*
+    asm volatile (
+         // Store potential args in general purpose registers
+         "       stp     x6, x7, [sp, #-16]!\n"
+         "       stp     x4, x5, [sp, #-16]!\n"
+         "       stp     x2, x3, [sp, #-16]!\n"
+         "       stp     x0, x1, [sp, #-16]!\n"
+
+         // Store potential args in floating point/SIMD registers
+         "       stp     d6, d7, [sp, #-16]!\n"
+         "       stp     d4, d5, [sp, #-16]!\n"
+         "       stp     d2, d3, [sp, #-16]!\n"
+         "       stp     d0, d1, [sp, #-16]!\n"
+
+         // First argument to cpp_vtable_call: The x15 set up in the codeSnippet instance
+         "       mov     x0, x15\n"
+
+         // Store x8 (potential pointer to return value storage) and lr
+         "       stp     x8, lr, [sp, #-16]!\n"
+
+         // Second argument: The pointer to all the above
+         "       mov     x1, sp\n"
+
+         "       bl      _cpp_vtable_call\n"
+
+         "       ldp     x8, lr, [sp, #0]\n"
+         "       add     sp, sp, #144\n"
+         "       ret     lr\n"
+    );
+}
+
+
 extern "C" {
     extern int nFunIndexes, nVtableOffsets;
     extern int codeSnippets[];

bridges/source/cpp_uno/gcc3_ios/ios64_helper.s

@@ -221,40 +221,4 @@ _codeSnippets:
     .long codeSnippet_00000007_3 - _codeSnippets
 
 
-
-    .text
-    .align 4
-
-_privateSnippetExecutor:
-
-    .cfi_startproc
-    // _privateSnippetExecutor is jumped to from each of the
-    // codeSnippet_*  generated by generate-snippets.pl
-
-    // Store potential args in general purpose registers
-    stp     x6, x7, [sp, #-16]!
-    stp     x4, x5, [sp, #-16]!
-    stp     x2, x3, [sp, #-16]!
-    stp     x0, x1, [sp, #-16]!
-
-    // Store potential args in floating point/SIMD registers
-    stp     d6, d7, [sp, #-16]!
-    stp     d4, d5, [sp, #-16]!
-    stp     d2, d3, [sp, #-16]!
-    stp     d0, d1, [sp, #-16]!
-
-    // First argument to cpp_vtable_call: The x15 set up in the codeSnippet instance
-    mov     x0, x15
-    // Store x8 (potential pointer to return value storage) and lr
-    stp     x8, lr, [sp, #-16]!
-    // Second argument: The pointer to all the above
-    mov     x1, sp
-
-    bl      _cpp_vtable_call
-
-    ldp     x8, lr, [sp, #0]
-    add     sp, sp, #144
-    ret     lr
-    .cfi_endproc
-
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