similar to: [LLVMdev] elf direct object emission

Daniel somehow replied to one of my previous commits on llvm-commits instead of this thread. On Mon, Jul 26, 2010 at 12:41 AM, Daniel Dunbar <daniel at zuster.org> wrote: > Hi Michael, > > Two minor notes: > -- >> diff --git a/lib/Target/X86/X86AsmBackend.cpp b/lib/Target/X86/X86AsmBackend.cpp >> index 2cf65c1..02ac2be 100644 >> ---

On Mon, Jul 26, 2010 at 7:25 PM, Michael Spencer <bigcheesegs at gmail.com> wrote: > Daniel somehow replied to one of my previous commits on llvm-commits > instead of this thread. > > On Mon, Jul 26, 2010 at 12:41 AM, Daniel Dunbar <daniel at zuster.org> wrote: >> Hi Michael, >> >> Two minor notes: >> -- >>> diff --git

On 26 July 2010 18:08, Michael Spencer <bigcheesegs at gmail.com> wrote: > On Mon, Jul 26, 2010 at 12:04 PM, Aaron Gray <aaronngray.lists at gmail.com> > wrote: > > You probably want to add Cygwin and MinGW32 Triples as well :- > > case Triple::Win32: > > + case Triple::Cygwin: > > + case Triple::MinGW32: > > return new

On Mon, Jul 26, 2010 at 12:04 PM, Aaron Gray <aaronngray.lists at gmail.com> wrote: > You probably want to add Cygwin and MinGW32 Triples as well :- >    case Triple::Win32: > +  case Triple::Cygwin: > +  case Triple::MinGW32: >      return new WindowsX86AsmBackend (T); > Aaron Can someone test this on those platforms? That change would effect quite a few people. -

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) {

On Fri, Jul 30, 2010 at 1:28 PM, Daniel Dunbar <daniel at zuster.org> wrote: > On Mon, Jul 26, 2010 at 7:25 PM, Michael Spencer <bigcheesegs at gmail.com> wrote: >> Daniel somehow replied to one of my previous commits on llvm-commits >> instead of this thread. >> >> On Mon, Jul 26, 2010 at 12:41 AM, Daniel Dunbar <daniel at zuster.org> 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' << getSectionName() << '\n'; return; } // otherwise print ".section" directive and then section

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, 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 = "!";

Hi there, When I compile my code with -fdata-sections and -ffunction-sections, I still see some unused string in my shared library (Android). Actually, the strings appear together inside a .rodata.str1.1 section instead of getting their own section. It seems that the C-string literal are considered differently than other constant and the -fdata-sections is not respected in

On 2020-09-16 00:18, Fangrui Song wrote: > Usually it is because nobody has noticed the problem or nobody is > motivated enough to fix the problems, not that they intentionally leave > a problem open:) I took some time to look at the problem and conclude > that clang should do nothing on this. Actually, with the clang behavior, > you can discard "Unused" if you use LLD.

Hello All, I was trying to add Microblaze target to LLVM backend. I was able to generate object file with relocations. and debug symbols. When I try to link this object file with microblaze GCC linker I am getting below errors and debug symbols are missing in it. mb-objdump: DWARF error: found dwarf version '15877', this reader only handles version 2, 3, 4 and 5 information

On Saturday, April 18, 2020, David Blaikie <dblaikie at gmail.com> wrote: > > > On Sat, Apr 18, 2020 at 3:02 AM Nagaraju Mekala via llvm-dev < > llvm-dev at lists.llvm.org> wrote: > >> Hello All, >> >> I was trying to add Microblaze target to LLVM backend. I was able to >> generate object file with relocations. and debug symbols. >>

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

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

On Sat, Apr 18, 2020 at 11:11 PM David Blaikie <dblaikie at gmail.com> wrote: > > Yeah, not sure - you mention the linker produces errors, but the errors you showed looked like objdump errors? Were those errors from trying to dump the linked executable, and not errors that were produced by the linker itself? Yes, as mentioned earlier I was able to generate final executable but it

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

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"

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

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,