9df05fbb7f
indicate whether inline functions are desired. This allows the expression parser, for instance, to filter out inlined functions when looking for functions it can call. llvm-svn: 150279
191 lines
8.6 KiB
C++
191 lines
8.6 KiB
C++
//===-- InferiorCallPOSIX.cpp -----------------------------------*- C++ -*-===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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#include "InferiorCallPOSIX.h"
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#include "lldb/Core/StreamFile.h"
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#include "lldb/Core/ValueObject.h"
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#include "lldb/Symbol/SymbolContext.h"
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#include "lldb/Target/ExecutionContext.h"
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#include "lldb/Target/Process.h"
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#include "lldb/Target/Target.h"
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#include "lldb/Target/ThreadPlanCallFunction.h"
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#include <sys/mman.h>
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using namespace lldb;
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using namespace lldb_private;
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bool lldb_private::InferiorCallMmap(Process *process, addr_t &allocated_addr,
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addr_t addr, addr_t length, unsigned prot,
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unsigned flags, addr_t fd, addr_t offset) {
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Thread *thread = process->GetThreadList().GetSelectedThread().get();
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if (thread == NULL)
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return false;
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const bool append = true;
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const bool include_symbols = true;
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const bool include_inlines = false;
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SymbolContextList sc_list;
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const uint32_t count
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= process->GetTarget().GetImages().FindFunctions (ConstString ("mmap"),
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eFunctionNameTypeFull,
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include_symbols,
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include_inlines,
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append,
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sc_list);
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if (count > 0)
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{
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SymbolContext sc;
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if (sc_list.GetContextAtIndex(0, sc))
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{
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const uint32_t range_scope = eSymbolContextFunction | eSymbolContextSymbol;
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const bool use_inline_block_range = false;
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const bool stop_other_threads = true;
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const bool discard_on_error = true;
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const bool try_all_threads = true;
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const uint32_t single_thread_timeout_usec = 500000;
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addr_t prot_arg, flags_arg = 0;
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if (prot == eMmapProtNone)
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prot_arg = PROT_NONE;
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else {
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prot_arg = 0;
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if (prot & eMmapProtExec)
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prot_arg |= PROT_EXEC;
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if (prot & eMmapProtRead)
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prot_arg |= PROT_READ;
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if (prot & eMmapProtWrite)
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prot_arg |= PROT_WRITE;
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}
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if (flags & eMmapFlagsPrivate)
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flags_arg |= MAP_PRIVATE;
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if (flags & eMmapFlagsAnon)
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flags_arg |= MAP_ANON;
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AddressRange mmap_range;
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if (sc.GetAddressRange(range_scope, 0, use_inline_block_range, mmap_range))
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{
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ClangASTContext *clang_ast_context = process->GetTarget().GetScratchClangASTContext();
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lldb::clang_type_t clang_void_ptr_type = clang_ast_context->GetVoidPtrType(false);
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ThreadPlanCallFunction *call_function_thread_plan
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= new ThreadPlanCallFunction (*thread,
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mmap_range.GetBaseAddress(),
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ClangASTType (clang_ast_context->getASTContext(), clang_void_ptr_type),
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stop_other_threads,
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discard_on_error,
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&addr,
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&length,
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&prot_arg,
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&flags_arg,
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&fd,
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&offset);
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lldb::ThreadPlanSP call_plan_sp (call_function_thread_plan);
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if (call_plan_sp)
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{
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StreamFile error_strm;
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StackFrame *frame = thread->GetStackFrameAtIndex (0).get();
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if (frame)
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{
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ExecutionContext exe_ctx;
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frame->CalculateExecutionContext (exe_ctx);
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ExecutionResults result = process->RunThreadPlan (exe_ctx,
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call_plan_sp,
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stop_other_threads,
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try_all_threads,
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discard_on_error,
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single_thread_timeout_usec,
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error_strm);
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if (result == eExecutionCompleted)
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{
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allocated_addr = call_plan_sp->GetReturnValueObject()->GetValueAsUnsigned(LLDB_INVALID_ADDRESS);
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if (process->GetAddressByteSize() == 4)
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{
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if (allocated_addr == UINT32_MAX)
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return false;
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}
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return true;
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}
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}
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}
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}
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}
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}
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return false;
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}
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bool lldb_private::InferiorCallMunmap(Process *process, addr_t addr,
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addr_t length) {
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Thread *thread = process->GetThreadList().GetSelectedThread().get();
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if (thread == NULL)
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return false;
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const bool append = true;
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const bool include_symbols = true;
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const bool include_inlines = false;
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SymbolContextList sc_list;
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const uint32_t count
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= process->GetTarget().GetImages().FindFunctions (ConstString ("munmap"),
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eFunctionNameTypeFull,
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include_symbols,
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include_inlines,
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append,
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sc_list);
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if (count > 0)
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{
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SymbolContext sc;
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if (sc_list.GetContextAtIndex(0, sc))
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{
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const uint32_t range_scope = eSymbolContextFunction | eSymbolContextSymbol;
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const bool use_inline_block_range = false;
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const bool stop_other_threads = true;
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const bool discard_on_error = true;
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const bool try_all_threads = true;
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const uint32_t single_thread_timeout_usec = 500000;
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AddressRange munmap_range;
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if (sc.GetAddressRange(range_scope, 0, use_inline_block_range, munmap_range))
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{
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lldb::ThreadPlanSP call_plan_sp (new ThreadPlanCallFunction (*thread,
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munmap_range.GetBaseAddress(),
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ClangASTType(),
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stop_other_threads,
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discard_on_error,
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&addr,
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&length));
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if (call_plan_sp)
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{
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StreamFile error_strm;
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StackFrame *frame = thread->GetStackFrameAtIndex (0).get();
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if (frame)
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{
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ExecutionContext exe_ctx;
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frame->CalculateExecutionContext (exe_ctx);
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ExecutionResults result = process->RunThreadPlan (exe_ctx,
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call_plan_sp,
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stop_other_threads,
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try_all_threads,
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discard_on_error,
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single_thread_timeout_usec,
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error_strm);
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if (result == eExecutionCompleted)
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{
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return true;
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}
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}
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}
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}
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}
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}
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return false;
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}
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