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Fixes for ri5cy verilator #65

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Fixes for ri5cy verilator #65

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Commits on Apr 24, 2019

  1. Detect _exit by matching the _exit breakpoint 

    This should work more consistently than looking for a call to
__internal_syscall, which was very library specific.

testsuite/ChangeLog:

	* config/ri5cyverilator.exp (beebs_load): Check for
	_exit breakpoint instead of __internal_syscall when trying
	to detect exit.
    @edward-jones
    edward-jones committed Apr 24, 2019
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  2. Fix ri5cy chip flags to match arch and abi (rv32imc ilp32) 

    ChangeLog:

	* config/riscv32/chips/ri5cy/chip.cfg: Change CHIP_CFLAGS to
	match architecture of ri5cy (-march=rv32imc -mabi=ilp32)
    @edward-jones
    edward-jones committed Apr 24, 2019
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  3. ri5cy: Allow gdbserver command override with env variable 

    This allows an alternative gdbserver command to be used when
running the tests.

testsuite/ChangeLog:

	* config/ri5cyverilator.exp (beebs_load): Pick up
	GDBSERVER_CMD environment variable if set.
    @edward-jones
    edward-jones committed Apr 24, 2019
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