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2009-03-09Fix PR3724 by searching for the largest free block when Chris Lattner
allocating memory in the JIT. This is insanely inefficient, but hey, most people implement their own memory managers anyway. Patch by Eric Yew! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66472 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-07Introduce new linkage types linkonce_odr, weak_odr, common_odrDuncan Sands
and extern_weak_odr. These are the same as the non-odr versions, except that they indicate that the global will only be overridden by an *equivalent* global. In C, a function with weak linkage can be overridden by a function which behaves completely differently. This means that IP passes have to skip weak functions, since any deductions made from the function definition might be wrong, since the definition could be replaced by something completely different at link time. This is not allowed in C++, thanks to the ODR (One-Definition-Rule): if a function is replaced by another at link-time, then the new function must be the same as the original function. If a language knows that a function or other global can only be overridden by an equivalent global, it can give it the weak_odr linkage type, and the optimizers will understand that it is alright to make deductions based on the function body. The code generators on the other hand map weak and weak_odr linkage to the same thing. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66339 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-07Finish cross-process JIT work, and clean up previous work.Nate Begeman
1. When the JIT is asked to remove a function, updating it's mapping to 0, we invalidate any function stubs used only by that function. Now, also invalidate the JIT's mapping from the GV the stub pointed to, to the address of the GV. 2. When dlsym stubs for cross-process JIT are enabled, do not abort just because a named function cannot be found in the JIT's process. 3. Fix various assumptions about when it is ok to use the lazy resolver when non-lazy JITing is enabled. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66324 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-05switch this message back to only being in -debug mode.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66143 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-05When allocating stubs, keep track of which Functions are referencing the stub.Nate Begeman
This invalidates the stubs in the resolver map when they are no longer referenced, and should the JIT memory manager ever pick up a deallocateStub interface, the JIT could reclaim the memory for unused stubs as well. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66141 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-04Fix a thinko in the JIT where the address of a GV was only recorded in the mapNate Begeman
on failure to resolve it. Do not abort on failure to resolve an external symbol when using dlsym stubs, since the symbol may not be in the JIT's address space. Just use 0. Allow dlsym stubs to differentiate between GlobalVars and Functions. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66050 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-03don't #include a header into the middle of an anon namespace.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65967 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-02Fix the calculation for how big the allocated stub needs to be.Nate Begeman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65895 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-19Fix the logic in this assertion to properly validate the numberDan Gohman
of arguments. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@64999 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-19Reapply r57340. VMKit does not presently rely on materializeFunctionDan Gohman
being called with the lock released, and this fixes a race condition in the JIT as used by lli. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@64997 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-18Add support to the JIT for true non-lazy operation. When a call to a functionNate Begeman
that has not been JIT'd yet, the callee is put on a list of pending functions to JIT. The call is directed through a stub, which is updated with the address of the function after it has been JIT'd. A new interface for allocating and updating empty stubs is provided. Add support for removing the ModuleProvider the JIT was created with, which would otherwise invalidate the JIT's PassManager, which is initialized with the ModuleProvider's Module. Add support under a new ExecutionEngine flag for emitting the infomration necessary to update Function and GlobalVariable stubs after JITing them, by recording the address of the stub and the name of the GlobalValue. This allows code to be copied from one address space to another, where libraries may live at different virtual addresses, and have the stubs updated with their new correct target addresses. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@64906 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-15On 64bit we may have a personality function which requires 64 bits toNicolas Geoffray
be encoded. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@64600 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-06Split the locking out of JIT::runJITOnFunction so that callersDan Gohman
that already hold the lock can call an entry point that doesn't re-acquire the lock. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63965 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-01Fix PR3423: Link llvm on ARM EABI machines. Patch by Robert Schuster.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63489 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-23Add support for deleting a module provider from a JIT in such a way that it ↵Nate Begeman
does not cause the owned module to be fully materialized. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62864 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-16Change isGVCompilationDisabled() semantics again. It should abort on any GV ↵Evan Cheng
that's not constant whether it's "internal" or not. In a server / client environment, GV is returned in the same block of memory as code. However, the memory might not be writable. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62336 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-16Registry.h should not depend on CommandLine.h.Mikhail Glushenkov
Split Support/Registry.h into two files so that we have less to recompile every time CommandLine.h is changed. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62312 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-16Delete trailing whitespace.Mikhail Glushenkov
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62307 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-15Add the private linkage.Rafael Espindola
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62279 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-12Rename getABITypeSize to getTypePaddedSize, asDuncan Sands
suggested by Chris. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62099 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-09Removed trailing whitespace from Makefiles.Misha Brukman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61991 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-05Fix misplaced right parentheses.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61699 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-05Handle weak_extern in the JIT. This fixesDan Gohman
SingleSource/UnitTests/2007-04-25-weak.c in JIT mode. The test now passes on systems which are able to produce a correct reference output to compare with. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61674 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-10Fix MachineCodeEmitter to use uintptr_t instead of intptr_t. This avoids ↵Evan Cheng
some overflow issues. Patch by Thomas Jablin. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60828 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-10Fix a bug introduced by r59265. If lazy compilation is disabled, return ↵Evan Cheng
actual function ptr instead of ptr to stub if function is already compiled. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60822 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-09DisableGVCompilation should not abort on internal GlobalValue's.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60750 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-23Make JIT::runFunction handle functions with non-C calling conventions.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59904 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-18Implement support for JIT exceptions on X86_64. Relative offsets areNicolas Geoffray
encoded on 32 bytes, and the personality function is not encoded as relative. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59516 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-13Always emit a function pointer as a pointer to the function stub (if there ↵Evan Cheng
is one). This makes it possible to compare function pointer values in lazy compilation mode. This fixes PR3043. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59265 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-12Change binary dump format.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59119 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-10Comments and indentation.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59007 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-10Forgot these.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@58952 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-08Remove a InvalidateInstructionCache call with incorrect size.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@58898 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-08Rename startFunctionStub to startGVStub since it's also used for GV non-lazy ↵Evan Cheng
ptr. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@58897 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-08Rename isString -> isExternalSymbol; getString -> getExternalSymbol since ↵Evan Cheng
these work on externsym machine relocations. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@58895 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-08More debug output.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@58894 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-07More debug output.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@58868 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-07Jump tables may be emitted by target.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@58835 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-06Improve JIT debugging outputs format consistency.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@58807 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-06Need a \n.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@58788 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-05Undo 58778 but makes the binary dump prettier.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@58782 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-05Remove debug output that's not really useful.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@58778 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-05Rename isGVLazyPtr to isGVNonLazyPtr relocation. This represents Mac OS XEvan Cheng
indirect gv reference. Please don't call it lazy. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@58746 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-04For some targets, it's not possible to place GVs in the same memory buffer ↵Evan Cheng
as the MachineCodeEmitter allocated memory. Code and data has different read / write / execution privilege requirements. This is a short term workaround. The current solution is for the JIT memory manager to manage code and data memory separately. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@58688 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-03Silence a compiler warning.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@58598 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-30Revert errant deletion. The target needs to be able to specify that it ↵Jim Grosbach
doesn't want the generic constant pool to be emitted. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@58475 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-29Let target resolve some relocation results.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@58407 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-28Support for constant islands in the ARM JIT.Jim Grosbach
Since the ARM constant pool handling supercedes the standard LLVM constant pool entirely, the JIT emitter does not allocate space for the constants, nor initialize the memory. The constant pool is considered part of the instruction stream. Likewise, when resolving relocations into the constant pool, a hook into the target back end is used to resolve from the constant ID# to the address where the constant is stored. For now, the support in the ARM emitter is limited to 32-bit integer. Future patches will expand this to the full range of constants necessary. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@58338 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-25Support for allocation of TLS variables in the JIT. Allocation of a globalNicolas Geoffray
variable is moved to the execution engine. The JIT calls the TargetJITInfo to allocate thread local storage. Currently, only linux/x86 knows how to allocate thread local global variables. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@58142 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-21fix a tricky bug in the JIT global variable emitter, that was triggered when ↵Nuno Lopes
JITing a variable independently of a function. This lead to sharing memory memory between functions and GVs thus changing the value of a GV could change the code in execution. more details on the ML. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57900 91177308-0d34-0410-b5e6-96231b3b80d8
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