1 //===-- ExpressionParser.cpp ----------------------------------------------===//
2 //
3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4 // See https://llvm.org/LICENSE.txt for license information.
5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6 //
7 //===----------------------------------------------------------------------===//
8
9 #include "lldb/Expression/ExpressionParser.h"
10 #include "lldb/Expression/DiagnosticManager.h"
11 #include "lldb/Expression/IRExecutionUnit.h"
12 #include "lldb/Target/ExecutionContext.h"
13 #include "lldb/Target/ThreadPlanCallFunction.h"
14
15 using namespace lldb;
16 using namespace lldb_private;
17
PrepareForExecution(addr_t & func_addr,addr_t & func_end,std::shared_ptr<IRExecutionUnit> & execution_unit_sp,ExecutionContext & exe_ctx,bool & can_interpret,ExecutionPolicy execution_policy)18 Status ExpressionParser::PrepareForExecution(
19 addr_t &func_addr, addr_t &func_end,
20 std::shared_ptr<IRExecutionUnit> &execution_unit_sp,
21 ExecutionContext &exe_ctx, bool &can_interpret,
22 ExecutionPolicy execution_policy) {
23 Status status =
24 DoPrepareForExecution(func_addr, func_end, execution_unit_sp, exe_ctx,
25 can_interpret, execution_policy);
26 if (status.Success() && exe_ctx.GetProcessPtr() && exe_ctx.HasThreadScope())
27 status = RunStaticInitializers(execution_unit_sp, exe_ctx);
28
29 return status;
30 }
31
32 Status
RunStaticInitializers(IRExecutionUnitSP & execution_unit_sp,ExecutionContext & exe_ctx)33 ExpressionParser::RunStaticInitializers(IRExecutionUnitSP &execution_unit_sp,
34 ExecutionContext &exe_ctx) {
35 Status err;
36
37 if (!execution_unit_sp.get()) {
38 err.SetErrorString(
39 "can't run static initializers for a NULL execution unit");
40 return err;
41 }
42
43 if (!exe_ctx.HasThreadScope()) {
44 err.SetErrorString("can't run static initializers without a thread");
45 return err;
46 }
47
48 std::vector<addr_t> static_initializers;
49
50 execution_unit_sp->GetStaticInitializers(static_initializers);
51
52 for (addr_t static_initializer : static_initializers) {
53 EvaluateExpressionOptions options;
54
55 ThreadPlanSP call_static_initializer(new ThreadPlanCallFunction(
56 exe_ctx.GetThreadRef(), Address(static_initializer), CompilerType(),
57 llvm::ArrayRef<addr_t>(), options));
58
59 DiagnosticManager execution_errors;
60 ExpressionResults results =
61 exe_ctx.GetThreadRef().GetProcess()->RunThreadPlan(
62 exe_ctx, call_static_initializer, options, execution_errors);
63
64 if (results != eExpressionCompleted) {
65 err.SetErrorStringWithFormat("couldn't run static initializer: %s",
66 execution_errors.GetString().c_str());
67 return err;
68 }
69 }
70
71 return err;
72 }
73