genode/repos/base-okl4/patches/invalid_opcode_exception_ipc.patch
Norman Feske ca971bbfd8 Move repositories to 'repos/' subdirectory
This patch changes the top-level directory layout as a preparatory
step for improving the tools for managing 3rd-party source codes.
The rationale is described in the issue referenced below.

Issue 
2014-05-14 16:08:00 +02:00

24 lines
902 B
Diff

- send 'invalid opcode' exception IPC to userland instead of switching to the kernel debugger console
diff --git a/arch/ia32/pistachio/src/exception.cc b/arch/ia32/pistachio/src/exception.cc
--- a/arch/ia32/pistachio/src/exception.cc
+++ b/arch/ia32/pistachio/src/exception.cc
@@ -177,17 +177,6 @@
printf ("invalid opcode by %t at IP %p\n", current, addr),
"ia32_ud at %x (current=%x)", (u32_t)addr, (u32_t)current);
- /* instruction emulation, only in user area! */
- if (space->is_user_area(addr)) {
- switch(space->get_from_user(addr)) {
- case 0xf0: /* lock prefix */
- /* fall trough */
- default:
- printf("invalid opcode at IP %p\n", addr);
- enter_kdebug("invalid opcode");
- }
- }
-
continuation_t cont = ASM_CONTINUATION;
send_exception_ipc(frame, IA32_EXC_INVALIDOPCODE, cont);
}