[LLVMdev] Cross-compiling for cortex-m3: how do I get ride of -ccc-gcc-name ? (original) (raw)
Gordon Keiser gkeiser at arxan.com
Sun Jul 29 18:51:45 PDT 2012
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Making a symlink to clang in the same directory as the GCC / binutils (I'll call it $ARM_BIN) called
arm-none-linux-gnueabi-clang (and one with clang++ too)
and another link in the $ARM_BIN/../lib directory to clang directory located under clang's lib (for includes) should be enough.
Gordon Keiser Software Development Engineer Arxan Technologies gkeiser at arxan.com www.arxan.com
-----Original Message----- From: llvmdev-bounces at cs.uiuc.edu [mailto:llvmdev-bounces at cs.uiuc.edu] On Behalf Of salvatore benedetto Sent: Saturday, July 28, 2012 11:05 AM To: llvmdev at cs.uiuc.edu Subject: [LLVMdev] Cross-compiling for cortex-m3: how do I get ride of -ccc- gcc-name ?
Hi there, I'm using clang to cross compile for cortex-m3. I eventually managed to do so with clang++ -ccc-gcc-name arm-none-linux-gnueabi-g++ -ccc-host-triple thumbv7m-none-gnueabi source.cpp -c -mcpu=cortex-m3 I would like to understand what -ccc-gcc-name does exactly and how can I get ride of it? >From what I understand, it's needed by the driver in order to find the >binutils for calling the assembler and the linker. Is that correct? After some grep'ing I ended up in gcc::Common::ConstructJob, where the option value is retrieved, but I'm not sure how does it fit with the rest. How else can I tell llvm where to look for binutils? Hope someone can save me a few hours around the codebase with some insights. Regards, Salvatore
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