similar to: clang assembler keeps .Linfo_string symbols?

On 3 May 2017 at 08:01, Rafael Avila de Espindola via llvm-dev <llvm-dev at lists.llvm.org> wrote: > Can you provide a .s file that shows the difference? I managed to reproduce it by compiling 'char *var = "whatever";' in debug mode (so clang -target arm-none-eabi tmp.c -g"). Direct compile leaves no assembler-local strings, but for some reason going via -S does.

That was probably my fault - not sure of the niceties of the list. Also not sure I understand why the integrated assembler behaves differently. I guess gold is never used with object files produced this way? Regards Michael > Tim Northover <t.p.northover at gmail.com> writes: > >> On 3 May 2017 at 08:01, Rafael Avila de Espindola via llvm-dev >> <llvm-dev at

CC llvm-dev ---------- Forwarded message ---------- Hello Duncan The size of ARM binaries created by clang has increased after r236642. Would you be able to find some time to look at my findings and share your thoughts about the problem, please? r236642 prevents emitting of temp label names into object files to save memory. This is fine, the label names do not appear in the resulting binaries.

Hello, I am trying to bootstrap on ARM linux EABI using a qemu chroot to better test my changes on at least one more architecture. I am using the following configure line: ../gcc/configure --prefix=/home/espindola/install/ --program-prefix=llvm- --enable-languages=c --disable-shared --disable-multilib --enable-llvm=/home/espindola/build --enable-checking arm-linux-gnueabi The bootstrap fails

Rafael, Remember that the qemu <= 0.9.0 can misexecute code compiled by LLVM. I think you should test using qemu CVS. Lauro 2007/11/2, Rafael Espindola <espindola at google.com>: > Hello, > > I am trying to bootstrap on ARM linux EABI using a qemu chroot to > better test my changes on at least one more architecture. > > I am using the following configure line: >

On 26 November 2013 15:36, Rob Stewart <robstewart57 at gmail.com> wrote: > $ clang -v -target armv7a-linux-eabi -mcpu=cortex-a9 -mfloat-abi=soft > -mfpu=neon helloworld.c > Hi Rod, You need cross-binutils installed on your box. If you use Debian, there are packages (gcc-4.7-arm-linux-gnueabi and friends). Other distros may have similar packages, but you can always download the

Hi, here's the canonical helloworld.c #include<stdio.h> int main() { printf("Hello World"); return 0; } In accordance with the cross-compilation LLVM documentation [1], I am trying to target the ARM on the Zedboard [2]. It is an ARM Cortex-A9. The machine I am compiling on is an x86_64 Fedora Linux machine, using clang 3.3. I am failing to generate an executable,

Hi I have the following ARM Linux program. The program detects if the processor has division instruction, if it does, it uses it, otherwise it uses slower library call. The program works with gcc, but it doesn't work with clang. clang reports error on the sdiv instruction in the assembler. The problem is this - you either compile this program with -mcpu=cortex-a9, then clang reports

On 21/01/2008, Arvind Ayyangar <arvind.ayyangar at gmail.com> wrote: > Hi, > I am new to LLVM and have been trying to get it working on > scratchbox (ARM target). When I try to build llvm-2.1, the build > freezes with the following output.. > I have build llvm inside scratchbox sometime ago. More recently Lauro pointed out that one should use a patched qemu. Not sure

Hi, I am new to LLVM and have been trying to get it working on scratchbox (ARM target). When I try to build llvm-2.1, the build freezes with the following output.. /scratchbox/compilers/arm-softfloat-linux-gcc-3.4.4-cs-2005q3-2-glibc-2.3.6/bin/sbox-arm-softfloat-linux-gnu-nm: 'libgcc/./_dvmd_lnx_s.o': No such file mv -f libgcc/./_dvmd_lnx.visT libgcc/./_dvmd_lnx.vis

On 26 November 2013 16:44, Renato Golin <renato.golin at linaro.org> wrote: > On 26 November 2013 15:36, Rob Stewart <robstewart57 at gmail.com> wrote: >> >> $ clang -v -target armv7a-linux-eabi -mcpu=cortex-a9 -mfloat-abi=soft >> -mfpu=neon helloworld.c > > Hi Rod, I'm honoured. (But Rob is also OK) :-) > You need cross-binutils installed on your

Martin Richtarsky <s at martinien.de> writes: > Output looks as follows [1] Seems sh_offset is missing? That is what readelf prints as Off > [17] .rela.text RELA 0000000000000000 071423 001728 18 > 1 4 8 The offset of rela text should have been aligned, but it is not. Can you report a bug on icc? As a work around using the gnu assembler if possible

Hi, What would be the proper syntax in a C file, using inline assembly, to load a immediate value into an ARM register using clang & integrated assembler? The following syntax is rejected by LLVM: // clang -target armv7em-none-eabi -mthumb #define CONSTANT 0x1234 void __attribute__((naked)) foo(void) { asm volatile ( "ldr r0, =%0 \n"

On 11/27/2013 07:57 AM, Rob Stewart wrote: > On 26 November 2013 16:44, Renato Golin <renato.golin at linaro.org> wrote: >> On 26 November 2013 15:36, Rob Stewart <robstewart57 at gmail.com> wrote: >>> $ clang -v -target armv7a-linux-eabi -mcpu=cortex-a9 -mfloat-abi=soft >>> -mfpu=neon helloworld.c >> Hi Rod, > I'm honoured. (But Rob is also OK)

On Fri, May 23, 2014 at 3:06 PM, Rafael Avila de Espindola <rafael.espindola at gmail.com> wrote: > > > Sent from my iPhone > >> On May 23, 2014, at 17:51, Eric Christopher <echristo at gmail.com> wrote: >> >> I'm not there yet, but at some point I'm going to need the notion of a >> global callable function like symbol that's resolved at

Hiya I am trying to compile a test case with latest LLVM 3.3 release using integrated assembler. I have looked through previous mailing discussion on this subject and it appears that perhaps by now the appropriate changes are checked-in however my test case is failing. Maybe I am missing something and not specifying appropriate options on the commandline. My setup: Host operating System: Ubuntu

# Summary As a consequence of comparing the RISC-V LLVM MC assembler to the RISC-V GNU assembler I've noticed that a number of targets have quite different handling for pc-relative jumps/branches with immediate integer operands in llvm-mc vs GNU as. I'll admit that this isn't likely to occur in hand-written code (as you'd almost always prefer to use a label), but thought it was

Rui Ueyama <ruiu at google.com> writes: > On Tue, Dec 5, 2017 at 1:22 PM, Rafael Avila de Espindola < > rafael.espindola at gmail.com> wrote: > >> Martin Richtarsky <s at martinien.de> writes: >> >> > Output looks as follows [1] Seems sh_offset is missing? >> >> That is what readelf prints as Off >> >> > [17] .rela.text

On 2017-02-21 20:33, Rafael Avila de Espindola wrote: >> Input files: >> https://www.dropbox.com/s/8yn3dggx05atn47/binLinux.zip?dl=0 > > If you pass --reproduce foo.tar to lld it will create a foo.tar file > with all that is needed to reproduce the link. > > Can you also share how you created the various .o files? If so I might > be able to try reducing the issue.

On Jun 22, 2011, at 4:02 PM, Damjan Marion wrote: >> >> To get -integrated-as working so that we don't need to go through the assembler at all should be mostly a matter of bug fixing, modulo inline assembly support. For non-trivial inline assembly, and to get a system assembler replacement based on the MC assembler, it'll be a bigger task. The ARM asm parser is currently in