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 = Status::FromErrorString(
39 "can't run static initializers for a NULL execution unit");
40 return err;
41 }
42
43 if (!exe_ctx.HasThreadScope()) {
44 err = Status::FromErrorString(
45 "can't run static initializers without a thread");
46 return err;
47 }
48
49 std::vector<addr_t> static_initializers;
50
51 execution_unit_sp->GetStaticInitializers(static_initializers);
52
53 for (addr_t static_initializer : static_initializers) {
54 EvaluateExpressionOptions options;
55
56 ThreadPlanSP call_static_initializer(new ThreadPlanCallFunction(
57 exe_ctx.GetThreadRef(), Address(static_initializer), CompilerType(),
58 llvm::ArrayRef<addr_t>(), options));
59
60 DiagnosticManager execution_errors;
61 ExpressionResults results =
62 exe_ctx.GetThreadRef().GetProcess()->RunThreadPlan(
63 exe_ctx, call_static_initializer, options, execution_errors);
64
65 if (results != eExpressionCompleted) {
66 err = Status::FromError(execution_errors.GetAsError(
67 lldb::eExpressionSetupError, "couldn't run static initializer:"));
68 return err;
69 }
70 }
71
72 return err;
73 }
74