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Fix multiple debugger issues. (#1640)

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- Wait for free byte code pointers during garbage collection.
- Detect incorrect free requests in the debugger server.
- Ignore byte code blocks loaded from snapshot.
- Use memmove instead of memcpy to avoid receive buffer corruption.

JerryScript-DCO-1.0-Signed-off-by: Zoltan Herczeg zherczeg.u-szeged@partner.samsung.com
This commit is contained in:
Zoltan Herczeg
2017-03-06 11:13:25 +01:00
committed by GitHub
parent b996841a65
commit b5a91069fd
9 changed files with 110 additions and 62 deletions
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jerry-core/vm/vm.c
+28
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@@ -2321,6 +2321,20 @@ vm_loop (vm_frame_ctx_t *frame_ctx_p) /**< frame context */
JERRY_ASSERT (JERRY_CONTEXT (debugger_flags) & JERRY_DEBUGGER_CONNECTED);
if (frame_ctx_p->bytecode_header_p->status_flags & CBC_CODE_FLAGS_DEBUGGER_IGNORE)
{
/* Messages are still processed regardless of ignore. */
if (JERRY_CONTEXT (debugger_message_delay) > 0)
{
JERRY_CONTEXT (debugger_message_delay)--;
continue;
}
JERRY_CONTEXT (debugger_message_delay) = JERRY_DEBUGGER_MESSAGE_FREQUENCY;
jerry_debugger_receive ();
continue;
}
frame_ctx_p->byte_code_p = byte_code_start_p;
jerry_debugger_breakpoint_hit ();
@@ -2337,6 +2351,20 @@ vm_loop (vm_frame_ctx_t *frame_ctx_p) /**< frame context */
JERRY_ASSERT (JERRY_CONTEXT (debugger_flags) & JERRY_DEBUGGER_CONNECTED);
if (frame_ctx_p->bytecode_header_p->status_flags & CBC_CODE_FLAGS_DEBUGGER_IGNORE)
{
/* Messages are still processed regardless of ignore. */
if (JERRY_CONTEXT (debugger_message_delay) > 0)
{
JERRY_CONTEXT (debugger_message_delay)--;
continue;
}
JERRY_CONTEXT (debugger_message_delay) = JERRY_DEBUGGER_MESSAGE_FREQUENCY;
jerry_debugger_receive ();
continue;
}
frame_ctx_p->byte_code_p = byte_code_start_p;
if ((JERRY_CONTEXT (debugger_flags) & JERRY_DEBUGGER_VM_STOP)