56 lines
1.9 KiB
Plaintext
56 lines
1.9 KiB
Plaintext
Title: Test to verify the no multithreading use-case (ARM Only)
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Description:
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This test verifies that a Zephyr build without multithreading
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support (CONFIG_MULTITHREADING=n) works as expected. Only for
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ARM Cortex-M targets. In detail the test verifies that
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- system boots to main()
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- PSP points to the main stack
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- PSPLIM is set to the main stack base (if applicable)
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- FPU state is reset (if applicable)
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- Interrupts are enabled when switching to main()
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- Interrupts may be registerd and serviced
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- Activating PendSV triggers a Reserved Exception error
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---------------------------------------------------------------------------
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Building and Running Project:
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This project outputs to the console. It can be built and executed on QEMU as
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follows:
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ninja/make run
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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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ninja/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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ninja/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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*** Booting Zephyr OS build zephyr-v2.6.0-349-g032d10878792 ***
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ARM no-multithreading test
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E: ***** Reserved Exception ( -2) *****
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E: r0/a1: 0x0000001b r1/a2: 0x000044d8 r2/a3: 0xe000ed00
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E: r3/a4: 0x10000000 r12/ip: 0x0000000a r14/lr: 0x00001473
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E: xpsr: 0x61000000
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E: Faulting instruction address (r15/pc): 0x00001510
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E: >>> ZEPHYR FATAL ERROR 0: CPU exception on CPU 0
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E: Current thread: (nil) (unknown)
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Caught system error -- reason 0
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Available IRQ line: 25
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ARM no multithreading test successful
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===================================================================
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PROJECT EXECUTION SUCCESSFUL
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