search for: baseaddress

Hi, I'm trying to achieve the following: - I have a global variable BaseAddress that holds the base address of a contiguous dynamically allocated memory block. - I have a number of logical variables of different types that are mapped on certain address ranges inside the memory block pointed to by BaseAddress. The offset and the size of each such logical variable inside the me...

> On Mar 22, 2018, at 4:08 PM, Roman Levenstein <romixlev at gmail.com> wrote: > > Hi, > > I'm trying to achieve the following: > > - I have a global variable BaseAddress that holds the base address of > a contiguous dynamically allocated memory block. > > - I have a number of logical variables of different types that are > mapped on certain address ranges inside the memory block pointed to by > BaseAddress. The offset and the size of each such logic...

...22, 2018 at 4:22 PM, Adrian Prantl <aprantl at apple.com> wrote: > > >> On Mar 22, 2018, at 4:08 PM, Roman Levenstein <romixlev at gmail.com> wrote: >> >> Hi, >> >> I'm trying to achieve the following: >> >> - I have a global variable BaseAddress that holds the base address of >> a contiguous dynamically allocated memory block. >> >> - I have a number of logical variables of different types that are >> mapped on certain address ranges inside the memory block pointed to by >> BaseAddress. The offset and the size...

...prantl at apple.com> wrote: >> >> >>> On Mar 22, 2018, at 4:08 PM, Roman Levenstein <romixlev at gmail.com> wrote: >>> >>> Hi, >>> >>> I'm trying to achieve the following: >>> >>> - I have a global variable BaseAddress that holds the base address of >>> a contiguous dynamically allocated memory block. >>> >>> - I have a number of logical variables of different types that are >>> mapped on certain address ranges inside the memory block pointed to by >>> BaseAddress. Th...

...>>> >>> >>>> On Mar 22, 2018, at 4:08 PM, Roman Levenstein <romixlev at gmail.com> wrote: >>>> >>>> Hi, >>>> >>>> I'm trying to achieve the following: >>>> >>>> - I have a global variable BaseAddress that holds the base address of >>>> a contiguous dynamically allocated memory block. >>>> >>>> - I have a number of logical variables of different types that are >>>> mapped on certain address ranges inside the memory block pointed to by >>>&...

...t;>>>> On Mar 22, 2018, at 4:08 PM, Roman Levenstein <romixlev at gmail.com> wrote: >>>>> >>>>> Hi, >>>>> >>>>> I'm trying to achieve the following: >>>>> >>>>> - I have a global variable BaseAddress that holds the base address of >>>>> a contiguous dynamically allocated memory block. >>>>> >>>>> - I have a number of logical variables of different types that are >>>>> mapped on certain address ranges inside the memory block pointed to...

Hi Ruben, > I see I missed some curly braces. I also modified spacing a tiny bit. Doesn't seem so. E.g. you have: + if ( !VirtualQuery(addr, &b, sizeof(b)) ) + exit(1); + if( !VirtualProtect(b.BaseAddress, b.RegionSize, PAGE_EXECUTE_READWRITE, &b.Protect) ) Add space after "if". Do not put spaces after "(" and before ")". Same for other places in the file. -- With best regards, Anton Korobeynikov Faculty of Mathematics and Mechanics, Saint Petersburg State Univers...

...t)execution_buffer & (-4095)); char* end = (char*)((uintptr_t)(&execution_buffer[128+4096]) & (-4095)); +#if defined(_WIN32) + DWORD dummy_oldProt; + MEMORY_BASIC_INFORMATION b; + if ( !VirtualQuery(start, &b, sizeof(b)) ) + return 1; + if ( !VirtualProtect(b.BaseAddress, b.RegionSize, PAGE_EXECUTE_READWRITE, &b.Protect) ) +#else if ( mprotect(start, end-start, PROT_READ|PROT_WRITE|PROT_EXEC) != 0 ) +#endif return 1; // verify you can copy and execute a function @@ -53,7 +70,8 @@ __clear_cache(execution_buffer, &execution_buffer[12...

...{ ErrorExit("VirtualQueryEx: Failed!\n"); TerminateProcess(pi.hProcess, 0); exit(1); } else { printf( "Before:\n" "Process basic info: 0x%08X\n" " BaseAddress: 0x%08X\n" " AllocationBase: 0x%08X\n" " AllocationProtect: 0x%08X\n" " RegionSize: 0x%08X\n", basic_info.BaseAddress, basic_info.AllocationBase, basic_info.A...

...t)execution_buffer & (-4095)); char* end = (char*)((uintptr_t)(&execution_buffer[128+4096]) & (-4095)); +#if defined(_WIN32) + DWORD dummy_oldProt; + MEMORY_BASIC_INFORMATION b; + if ( !VirtualQuery(start, &b, sizeof(b)) ) + return 1; + if ( !VirtualProtect(b.BaseAddress, b.RegionSize, PAGE_EXECUTE_READWRITE, &b.Protect) ) +#else if ( mprotect(start, end-start, PROT_READ|PROT_WRITE|PROT_EXEC) != 0 ) +#endif return 1; // verify you can copy and execute a function Index: test/Unit/enable_execute_stack_test.c ==================================...

...ynikov <anton at korobeynikov.info> > Hi Ruben, > > > I see I missed some curly braces. I also modified spacing a tiny bit. > Doesn't seem so. E.g. you have: > > + if ( !VirtualQuery(addr, &b, sizeof(b)) ) > + exit(1); > + if( !VirtualProtect(b.BaseAddress, b.RegionSize, > PAGE_EXECUTE_READWRITE, &b.Protect) ) > Add space after "if". Do not put spaces after "(" and before ")". Same > for other places in the file. > OK, I followed the rules you set forth here. But the files followed different ones, hence...

...opInfo.h 2011-11-13 02:34:47.000000000 +0100 > @@ -45,12 +45,13 @@ > private: > unsigned ElemBytes; > TypeKind Type; > + bool is_affine; I think IsAffine matches more the LLVM coding conventions. > > public: > explicit IRAccess (TypeKind Type, const Value *BaseAddress, > - const SCEV *Offset, unsigned elemBytes) > + const SCEV *Offset, unsigned elemBytes, bool affine) 'affine' should start with an uppercase letter. Polly itself has some inconsistent naming, but we started to follow the LLVM coding conventi...

...eType, unsigned __int64 HeapAddress, unsigned __int64 Address) Line 670 C ntdll.dll!RtlpLogHeapFailure(_HEAP_FAILURE_TYPE FailureType, void * HeapAddress, void * Address, void * Param1, void * Param2, void * Param3) Line 158 C ntdll.dll!RtlFreeHeap(void * HeapHandle, unsigned long Flags, void * BaseAddress) Line 352 C ucrtbase.dll!_free_base(void * block) Line 105 C++ XXXTest.exe!llvm::StringMapImpl::RehashTable(unsigned int BucketNo) Line 238 C++ XXXTest.exe!llvm::StringMap<llvm::ConstantDataSequential * __ptr64,llvm::MallocAllocator>::insert(std::pair<llvm::StringRef,llvm::ConstantDa...

...0100 >> @@ -45,12 +45,13 @@ >>  private: >>    unsigned ElemBytes; >>    TypeKind Type; >> +  bool is_affine; > > I think IsAffine matches more the LLVM coding conventions. > >> >>  public: >>    explicit IRAccess (TypeKind Type, const Value *BaseAddress, >> -                     const SCEV *Offset, unsigned elemBytes) >> +                     const SCEV *Offset, unsigned elemBytes, bool affine) > > 'affine' should start with an uppercase letter. Polly itself has some > inconsistent naming, but we started to follow the...

...ddress = uintptr_t(Section.Address) + i->second; + DEBUG(dbgs() << " Stub function found\n"); + } else { + // Create a new stub function (equivalent to a PLT entry). + DEBUG(dbgs() << " Create a new stub function\n"); + + uintptr_t BaseAddress = uintptr_t(Section.Address); + uintptr_t StubAlignment = getStubAlignment(); + StubAddress = (BaseAddress + Section.StubOffset + + StubAlignment - 1) & -StubAlignment; + unsigned StubOffset = StubAddress - BaseAddress; + Stubs[Value] = StubOffse...

Mmm I found out a very strange behavior (to me) of the SCEV analysis of the loop bound of the external loop I posted. When in ScopDetection it gets the SCEV of the external loop bound in the "isValidLoop()" function with: const SCEV *LoopCount = SE->getBackedgeTakenCount(L); It returns a SCEVCouldNotCompute, but if I change the "if" block inside the loop from: if

...eapAddress, unsigned __int64 Address) Line 670 C > ntdll.dll!RtlpLogHeapFailure(_HEAP_FAILURE_TYPE FailureType, void * > HeapAddress, void * Address, void * Param1, void * Param2, void * Param3) > Line 158 C > ntdll.dll!RtlFreeHeap(void * HeapHandle, unsigned long Flags, void * > BaseAddress) Line 352 C > ucrtbase.dll!_free_base(void * block) Line 105 C++ > XXXTest.exe!llvm::StringMapImpl::RehashTable(unsigned int BucketNo) > Line 238 C++ > XXXTest.exe!llvm::StringMap<llvm::ConstantDataSequential * > __ptr64,llvm::MallocAllocator>::insert(std::pair<llvm::S...

...ary and R crashes and I can't load the DLL. I keep getting the following error: > dyn.load( "optflikam.dll" ) 5 [main] ? 4012 init_cheap: Couldn't reserve space for cygwin's heap, Win32 error 487 c:\program files\r\rw1081\bin\Rterm.exe (4012): *** AllocationBase 0x0, BaseAddress 0x61670000, RegionSize 0x1050000, State 0x10000 I thought it might have something to do with the compiler, so I looked at the version of cygwin's gcc: C:\optflikam>gcc --version gcc (GCC) 3.3.1 (cygming special) Copyright (C) 2003 Free Software Foundation, Inc. This is free software; see t...

...ary and R crashes and I can't load the DLL. I keep getting the following error: > dyn.load( "optflikam.dll" ) 5 [main] ? 4012 init_cheap: Couldn't reserve space for cygwin's heap, Win32 error 487 c:\program files\r\rw1081\bin\Rterm.exe (4012): *** AllocationBase 0x0, BaseAddress 0x61670000, RegionSize 0x1050000, State 0x10000 I thought it might have something to do with the compiler, so I looked at the version of cygwin's gcc: C:\optflikam>gcc --version gcc (GCC) 3.3.1 (cygming special) Copyright (C) 2003 Free Software Foundation, Inc. This is free software; see t...

...generic Unix implementation. Neither applies to Win32, so > I ifdef'ed the whole thing. > > >> > + MEMORY_BASIC_INFORMATION b; >> > + >> > + if (!VirtualQuery(addr, &b, sizeof(b))) >> > + exit(1); >> > + if (!VirtualProtect(b.BaseAddress, b.RegionSize, >> PAGE_EXECUTE_READWRITE, &b.Protect)) >> > + exit(1); >> > +#endif /* _WIN32 */ >> > } >> >> Aside from that, patch LGTM. >> > > Great! > > Ruben > > >> >> ~Aaron >> > > Friendly p...