similar to: [LLVMdev] [PATCH] ARM MC relocations

Is there a way to handle this entirely in the ARM AsmPrinter bits? Adding pieces to the generic MC stuff feels a bit like overkill at first impression. On a minor note: You probably want dyn_cast<> instead of cast<> so you can do something like: if (const MCSectionELF* SectionELF = dyn_cast<MCSectionELF>(Section)) { // ... } -Jim On Jun 16, 2010, at 3:44 PM, Evan Cheng

Hi all, I did some changes to the AsmPrinter in order to print relocation information in GAS format compatible with ARM ELF. It doesn't look like the best solution, but there were some problems and the fact that this is my first attempt to change LLVM. My original assumption was that, changing MCExpr to accept relocation information, we could propagate that down later to whatever gets

On 17 June 2010 00:06, Jim Grosbach <grosbach at apple.com> wrote: > Is there a way to handle this entirely in the ARM AsmPrinter bits? Adding > pieces to the generic MC stuff feels a bit like overkill at first > impression. Hi Jim and Evan, At first, I thought I could do that, but it is MCAsmStreamer that is printing the final value of most symbols together with their EOL. So,

Hello, Renato > While Clang doesn’t include the TARGET2 relocation information, and that > mess up cross-linking. Is there any documentation for this stuff? -- With best regards, Anton Korobeynikov Faculty of Mathematics and Mechanics, Saint Petersburg State University

Hi guys, attached are a couple of work in progress patches for ELF support in the MC module. I'm sending this email to gather some general feedback on the code. Applying these patches doesn't get you a fully working llvm-mc that understands ELF; it's just the ground work. I've got a couple more small patches that fixup some places that assume Mach-O object format which I'll

I was looking into the AsmPrinter and the method EmitSectionOffset which contains this code: -------------------------------------------------------------------------------- // If the section in question will end up with an address of 0 anyway, we can // just emit an absolute reference to save a relocation. if (Section.isBaseAddressKnownZero()) { OutStreamer.EmitSymbolValue(Label, 4,

Hi Matt, Awesome! This is excellent progress, and it is great to see someone working on this. High level comments: (1) The order of patches is odd, to me. It would be great to start by adding the AsmParser support, then the MCStreamer support, so that we can have test cases in the 'llvm-mc cat' mode, where it just parses and prints out again. On 0001: - What is hasRelocationAddend? It

Hi, Thanks for pointing direction. As far, as I understand by reversing, logic, that I want to overwrite is digged into: lib/MC/MCSectionELF.cpp MCSectionELF::PrintSwitchToSection if (ShouldOmitSectionDirective(SectionName, MAI)) { OS << '\t' << getSectionName() << '\n'; return; } // otherwise print ".section" directive and then section

On Fri, Oct 7, 2016 at 1:55 PM, Evgenii Stepanov <eugeni.stepanov at gmail.com> wrote: > On Fri, Oct 7, 2016 at 1:22 PM, Peter Collingbourne <peter at pcc.me.uk> > wrote: > > On Fri, Oct 7, 2016 at 12:20 PM, Evgenii Stepanov > > <eugeni.stepanov at gmail.com> wrote: > >> > >> I've tried implementing some of the alternatives mentioned in

On Fri, Oct 7, 2016 at 12:20 PM, Evgenii Stepanov <eugeni.stepanov at gmail.com > wrote: > I've tried implementing some of the alternatives mentioned in this > thread, and so far I like this syntax the most: > > i32 reloc (29, void ()* @f, 3925868544) > ; 29 = 0x1d = R_ARM_JUMP24 > ; 3925868544 = 0xea000000 > > Note the zeroes in the relocated data instead of

On Fri, Oct 7, 2016 at 2:48 PM, Evgenii Stepanov <eugeni.stepanov at gmail.com> wrote: > On Fri, Oct 7, 2016 at 2:28 PM, Peter Collingbourne <peter at pcc.me.uk> > wrote: > > On Fri, Oct 7, 2016 at 1:55 PM, Evgenii Stepanov < > eugeni.stepanov at gmail.com> > > wrote: > >> > >> On Fri, Oct 7, 2016 at 1:22 PM, Peter Collingbourne <peter

On Thu, Mar 15, 2012 at 11:00:54AM +0400, Konstantin Vladimirov wrote: > Hi, > > Thanks for pointing direction. As far, as I understand by reversing, > logic, that I want to overwrite is digged into: > > lib/MC/MCSectionELF.cpp > > MCSectionELF::PrintSwitchToSection > > if (ShouldOmitSectionDirective(SectionName, MAI)) { > OS << '\t'

Hi, This patch adds R600/SI disassembly text to compiled object files, when a code dump is requested, to assist debugging in Mesa clients. Here's an example of the output in a Mesa client with a corresponding patch and RADEON_DUMP_SHADERS set: Shader Disassembly: S_WQM_B64 EXEC, EXEC ; BEFE0A7E S_MOV_B32 M0, SGPR6 ; BEFC0306

This is a feature (or bug) of MCSectionELF::PrintSwitchToSection. For ELF target this function tries to escape string if it founds 'suspicious' character, see implementation in MCSectionELF.cpp: StringRef name = getSectionName(); if (name.find_first_not_of("0123456789_." "abcdefghijklmnopqrstuvwxyz"

I have a case where I the expression (MCSymbolRefExpr) is the offset from the beginning of the section. The need is to combine that offset to the virtual address of the section it belongs, in this case .text, but it could be any section. I can get a MCSectionELF class object from MCSymbol that I get from MCSymbolRefExpr: int Kind = Value->getKind(); if (Kind == MCExpr::SymbolRef) {

Hi, In the document: http://llvm.org/docs/WritingAnLLVMBackend.html described example like: SparcTargetAsmInfo::SparcTargetAsmInfo(const SparcTargetMachine &TM) { Data16bitsDirective = "\t.half\t"; Data32bitsDirective = "\t.word\t"; Data64bitsDirective = 0; // .xword is only supported by V9. ZeroDirective = "\t.skip\t"; CommentString = "!";

Hello > I really need in my backend value for this section, distinct from > default. Where can I set it? It was renamed to ReadOnlySection. You might want to check the logic inside CodeGen/TargetLoweringObjectFileImp.cpp (in particular - TargetLoweringObjectFile::SelectionSectionForGlobal) to see how it's used. -- With best regards, Anton Korobeynikov Faculty of Mathematics and

On Fri, Apr 19, 2013 at 04:38:20PM +0700, Serge Pavlov wrote: > This is a feature (or bug) of MCSectionELF::PrintSwitchToSection. For > ELF target this function tries to escape string if it founds > 'suspicious' character, see implementation in MCSectionELF.cpp: > > StringRef name = getSectionName(); > if (name.find_first_not_of("0123456789_." >

Hi, I'd like to add support for addrspacecast in initializers of global variables, at least for the trivial case. The trivial case is if TargetLowering::isNoopAddrSpaceCast(SrcAS, DestAS) returns true. In this case the MCExpr for the addrspacecast is the MCExpr of its first operand. It seems hard to obtain an instance of TargetLowering in AsmPrinter::lowerConstant(). Other methods in

Hi Allan, Thanks for the fix! So is this a bug in LLVM? Can you reduce that to a small test case and file a bug? Nicolas 2010/8/2 Allan Tong <actong88 at gmail.com> > On Mon, Jul 19, 2010 at 7:40 PM, Minas Abrahamyan <minas.subs at gmail.com> > wrote: > > Trying to build AOT version of vmkit java, > > building for that classpath glibj.zip: > > > > $ cd