1 // orb/invoke.cc -- Method Invocation
3 // This software is copyright (c) 2006 Scott Wood <scott@buserror.net>.
5 // Permission is hereby granted, free of charge, to any person obtaining a copy of
6 // this software and associated documentation files (the "Software"), to deal with
7 // the Software without restriction, including without limitation the rights to
8 // use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
9 // of the Software, and to permit persons to whom the Software is furnished to do
10 // so, subject to the following condition:
12 // The above copyright notice and this permission notice shall be
13 // included in all copies or substantial portions of the Software.
15 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
17 // FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
18 // CONTRIBUTORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19 // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
20 // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS WITH THE
23 #include <kern/types.h>
25 #include <kern/pagealloc.h>
26 #include <kern/compiler.h>
27 #include <arch/usercopy.h>
30 using System::RunTime::ParamInfoBlock;
32 using Threads::Thread;
35 static CallFrame *new_frame(Thread *thread)
37 CallStackHeader *hdr = thread->orbstack_top_hdr;
39 if (unlikely(thread->orbstack_top == hdr->num_frames - 1)) {
40 hdr = static_cast<CallStackHeader *>(Mem::alloc_pages(1));
41 new(hdr) CallStackHeader;
43 hdr->num_frames = (Arch::page_size - sizeof(CallStackHeader)) /
46 thread->orbstack_top_hdr->node.add_front(&hdr->node);
47 thread->orbstack_top_hdr = hdr;
48 thread->orbstack_top = 0;
49 return &hdr->frames[0];
52 return &hdr->frames[thread->orbstack_top += 1];
56 extern "C" void invoke_method(ulong objid, ulong methid,
57 ParamInfoBlock *user_pib, ulong ret_pc)
59 ParamInfoBlock pib = Arch::copyin(user_pib);
60 CallFrame *frame = new_frame(curthread);
62 frame->object = objid;
63 frame->method = methid;
64 frame->caller_user_pib = user_pib;
65 frame->ret_pc = ret_pc;
67 printf("invoke_method: frame %p object %lx method %lx pib %p ret %lx\n",
68 frame, frame->object, frame->method, frame->caller_user_pib,