51 lines
1.8 KiB
Plaintext
51 lines
1.8 KiB
Plaintext
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Title: Test multilib
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Description:
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Some architectures support different ISA variants, each backed a different
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multilib in a same compiler. Selecting wrong multilib may have adverse
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effects on performance, or sometime produce broken executables altogether
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(for example, ARM Cortex-M requires thumb2 multilib and will be broken with
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default ("arm") multilib or "thumb" multlib). This app is a smoke-test
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for selecting non-wrong multilib - it uses operation(s) which guaranteedly
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will call support routine(s) in libgcc and checks for expected result.
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--------------------------------------------------------------------------------
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Building and Running Project:
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This nanokernel project outputs to the console. It can be built and executed
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on QEMU as follows:
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make qemu
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--------------------------------------------------------------------------------
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Troubleshooting:
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Problems caused by out-dated project information can be addressed by
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issuing one of the following commands then rebuilding the project:
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make clean # discard results of previous builds
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# but keep existing configuration info
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or
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make pristine # discard results of previous builds
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# and restore pre-defined configuration info
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--------------------------------------------------------------------------------
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Sample output:
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===================================================================
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PASS - main.
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===================================================================
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PROJECT EXECUTION SUCCESSFUL
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Sample failure output ("thumb" used on Cortex-M instead of "thumb2"):
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***** USAGE FAULT *****
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Executing thread ID (thread): 0x200002a0
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Faulting instruction address: 0x00000000
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Illegal use of the EPSR
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Fatal fault in essential task ! Spinning...
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