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 conditions:
12 // * Redistributions of source code must retain the above copyright notice,
13 // this list of conditions and the following disclaimers.
15 // * Redistributions in binary form must reproduce the above copyright notice,
16 // this list of conditions and the following disclaimers in the
17 // documentation and/or other materials provided with the distribution.
19 // * The names of the Software's authors and/or contributors
20 // may not be used to endorse or promote products derived from
21 // this Software without specific prior written permission.
23 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
24 // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
25 // FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
26 // CONTRIBUTORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
27 // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
28 // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS WITH THE
31 #include <kern/types.h>
33 #include <kern/pagealloc.h>
34 #include <kern/compiler.h>
35 #include <arch/usercopy.h>
38 using System::RunTime::ParamInfoBlock;
40 using Threads::Thread;
43 static CallFrame *new_frame(Thread *thread)
45 CallStackHeader *hdr = thread->orbstack_top_hdr;
47 if (unlikely(thread->orbstack_top == hdr->num_frames - 1)) {
48 hdr = static_cast<CallStackHeader *>(Mem::alloc_pages(1));
49 new(hdr) CallStackHeader;
51 hdr->num_frames = (Arch::page_size - sizeof(CallStackHeader)) /
54 thread->orbstack_top_hdr->node.add_front(&hdr->node);
55 thread->orbstack_top_hdr = hdr;
56 thread->orbstack_top = 0;
57 return &hdr->frames[0];
60 return &hdr->frames[thread->orbstack_top += 1];
64 extern "C" void invoke_method(ulong objid, ulong methid,
65 ParamInfoBlock *user_pib, ulong ret_pc)
67 ParamInfoBlock pib = Arch::copyin(user_pib);
68 CallFrame *frame = new_frame(curthread);
70 frame->object = objid;
71 frame->method = methid;
72 frame->caller_user_pib = user_pib;
73 frame->ret_pc = ret_pc;
75 printf("invoke_method: frame %p object %lx method %lx pib %p ret %lx\n",
76 frame, frame->object, frame->method, frame->caller_user_pib,