similar to: ld.lld fails with "undefined symbol: _fopen" on macOS, while working as expected on Linux

Thanks, Tim. You are right, it's using macOS' stdio.h, which is a terrible idea. Clang docs on --sysroot: When you have extracted your cross-compiler from a zip file into a directory, you have to use --sysroot=<path>. The path is the root directory where you have unpacked your file, and Clang will look for the directories bin, lib, include in there. I have a silly question: where

On 2020-05-14, Rui Ueyama via llvm-dev wrote: >On Thu, May 14, 2020 at 11:04 AM Ivan Medoedov via llvm-dev < >llvm-dev at lists.llvm.org> wrote: > >> Hello, >> >> I'm trying to compile a Linux hello world executable on macOS. >> >> The first step is simple: >> >> clang -c -target x86_64-linux-gnu -c -o hello.o hello.c >> >>

Hello, I'm trying to compile a Linux hello world executable on macOS. The first step is simple: clang -c -target x86_64-linux-gnu -c -o hello.o hello.c But linking results in an error: ld.lld --sysroot=/linuxroot/ -o hello -m elf_x86_64 \ -dynamic-linker /lib64/ld-linux-x86-64.so.2 \ /lib/crt1.o \ /usr/lib/x86_64-linux-gnu/crti.o ../hello.o \ /usr/lib/x86_64-linux-gnu/libc.so \

Sorry for the late reply. Thanks, Eli. That was really helpful. On Fri, Apr 12, 2019 at 9:31 PM Eli Friedman <efriedma at quicinc.com> wrote: > “--entry main” is not going to do what you want; the entry point for a > Linux program is not equivalent to the C “main”. > http://dbp-consulting.com/tutorials/debugging/linuxProgramStartup.html > has a description of how a C program

Hello, I'm trying to cross compile an empty program on macOS for Linux: cat test.c int main() { int a = 2+3; return 0; } clang -o -c -target x86_64-linux-gnu test.c If I copy the resulting test.o to the Linux machine and run clang test.o, it works fine. However if I try to link it on macOS, I get a segfault when I launch ./a.out ld.lld --entry main test.o [copy a.out to

Hello Christian, I've put some comments inline, On Sun, 3 Feb 2019 at 13:11, Christian Richter <christian.richter at hsu-hh.de> wrote: > > Hello again, > > so after I successfully build the compiler-rt for armv6 I tried to > actually use it in compiling a small helloworld for a baremetal arm > (consisting of barehelloCLANG.c and a small io.h + io.c) , but the >

Hello again Christian, I've posted https://reviews.llvm.org/D55709 to see if we can get the documentation on how to cross-compile compiler-rt improved. I'll be out of office until next year so I may be a bit slow to respond to any follow ups. Peter On Thu, 13 Dec 2018 at 17:10, Peter Smith <peter.smith at linaro.org> wrote: > > Hello Christian, > > I've just

Hello Christian, I'd expect that adding the library paths (-L) from gcc -v should fix the unable to find -lc, -lm but it won't fix the -lclang_rt.builtins-armv6m.a . To get clang_rt.builtins-armv6m.a you will need to cross compile compiler-rt for v6m and copy it to /usr/local/myclang/lib/clang/8.0.0/lib/baremetal . Beware that building compiler-rt for v6m does need quite a bit of fighting

Hello Peter and Lists, thanks a lot, that way it worked out! The final cmake was cmake -G "Ninja" ../llvm/projects/compiler-rt/ -DCOMPILER_RT_BUILD_BUILTINS=ON -DCOMPILER_RT_BUILD_SANITIZERS=OFF -DCOMPILER_RT_BUILD_XRAY=OFF -DCOMPILER_RT_BUILD_LIBFUZZER=OFF -DCOMPILER_RT_BUILD_PROFILE=OFF -DCMAKE_C_COMPILER=/usr/local/myclang/bin/clang -DCMAKE_AR=/usr/local/myclang/bin/llvm-ar

Hello again! Tried out the small Hello World Setup, worked as intended: root at christian-forschung-virtual-machine:/home/progs# clang -v --target=arm-linux-gnueabihf hello.c -o hello -fuse-ld=lld clang version 8.0.0 (https://git.llvm.org/git/clang.git/ a152c7a4b7ba8f4cb9532ead9a38a7121db43d50) (https://git.llvm.org/git/llvm.git/ 1959ce6f3e01241919968ac1911fd45660239d23) Target:

Hello Christian, I reran my script with a similar cmake command to yours. After the build finished the following command from the build directory gave me: find . -name \*builtins.a ./lib/clang/9.0.0/armv6m-none-eabi/lib/libclang_rt.builtins.a ./lib/clang/9.0.0/armv7m-none-eabi/lib/libclang_rt.builtins.a ./lib/clang/9.0.0/armv7em-none-eabi/lib/libclang_rt.builtins.a I hope you see something like

Dear testers, 8.0.0-rc2 has been tagged from the release_80 branch at r353413. Please run the test script, share your results, and upload binaries. I'll get the source tarballs and docs published as soon as possible, and binaries as they become available. Thanks, Hans

Hello, on the problems cross-building compiler-rt: Tried to follow https://llvm.org/docs/HowToCrossCompileBuiltinsOnArm.html which lead to this cmake: cmake -G "Ninja" ../llvm/projects/compiler-rt/ -DCOMPILER_RT_BUILD_BUILTINS=ON -DCOMPILER_RT_BUILD_SANITIZERS=OFF -DCOMPILER_RT_BUILD_XRAY=OFF -DCOMPILER_RT_BUILD_LIBFUZZER=OFF -DCOMPILER_RT_BUILD_PROFILE=OFF

I am currently trying to compile a pretty simple program to work on an experimental board. It contains an (FPGA-version of) an ARMv4 processor. So basically, I try this (on my Ubuntu 18.04.1 LTS): clang -v --target=arm-none-eabi -c barehello.c -o barehelloCLANG.o clang -v --target=arm-none-eabi -c io.c -o io.o clang -v --target=arm-none-eabi barehelloCLANG.o io.o -o helloCLANGstatic -static

Hi All, I have want to add a option in ssh_config to co-work with ldap.But when I am compiling , i was encountered a ld error, which says "cc -o ssh-keygen ssh-keygen.o -Wl,+nodefaultrpath -L. -Lopenbsd-compat/ -lssh -lopenbsd-compat -lz -lnsl -lxnet -lsec -lgssapi_krb5 -lkrb5 -lpthread ld: Unsatisfied symbol "options" in file ./libssh.a[hostfile.o] 1 errors." The following is

On Fri, Feb 8, 2019 at 9:53 AM Paweł Sikora via cfe-dev < cfe-dev at lists.llvm.org> wrote: > ----- Oryginalna wiadomość ----- > > Dear testers, > > > > 8.0.0-rc2 has been tagged from the release_80 branch at r353413. > > Hi, > > i've noticed a compile error with rc2 and libc++ (release_80 @svn). looks > similar to

I am trying to compile llvm-gcc for an ARm target. I usine the following configure options: /home/tony/llvm/llvm-gcc/configure --prefix=/home/tony/llvm/llvm-gcc-install/ --program-prefix=llvm-arm- --enable-llvm=/home/tony/llvm/llvm-install/ --enable-pic --disable-bootstrap --target=arm-none-linux-gnueabi --enable-languages=c,c++ Then I try to make: make ENABLE_PROFILING=1 ENABLE_OPTIMIZED=1

[Please cc me, as I am not on this list.] When installing the clang8 MacOS binary by wget <clang-binaries-tarball-url> tar -xf clang* cd clang* sudo mkdir /usr/local/clang8 sudo cp -R * /usr/local/clang8 the compiler works on MacOS 10.13, but not on MacOS 10.14, with an error: /usr/local/clang/bin/../include/c++/v1/stdio.h:108:15: fatal error: 'stdio.h' file not found

On Nov 6, 2010, at 5:22 PM, tonyg362 wrote: > > I am trying to compile llvm-gcc for an ARm target. I usine the following > configure options: > > /home/tony/llvm/llvm-gcc/configure > --prefix=/home/tony/llvm/llvm-gcc-install/ --program-prefix=llvm-arm- > --enable-llvm=/home/tony/llvm/llvm-install/ --enable-pic --disable-bootstrap > --target=arm-none-linux-gnueabi

Hello, Thank you for your kind attention to my issue and your help. I changed the tool chain and tried again. And there is a little progress but still have some problem. Using --sysroot doesn't make clang use linker(ld) in the cross tool. Most important question is how I can make clang use cross tool linker. Let me show you my experiment and questions below. There are two questions. [Run]