mpabi
34 lines
779 B
ArmAsm
34 lines
779 B
ArmAsm
.text
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.global _start
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.type _start, @function
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_start:
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# Initialize global pointer.
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.option push
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.option norelax
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la gp, __global_pointer$
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.option pop
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# Stack pointer is intentionally not set here.
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# In the Hazard3 testbench flow, common/init.S enters _start with sp
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# already loaded from __stack_top and adjusted to leave the argc/argv
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# area expected by newlib-style startup code.
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# Clear the .bss segment so debug globals start in a known state.
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la a0, __bss_start
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la a1, __bss_end
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clear_bss:
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bgeu a0, a1, finish_bss
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sb x0, 0(a0)
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addi a0, a0, 1
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j clear_bss
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finish_bss:
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call main
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# Exit the testbench with main() return code (Hazard3 init.S provides _exit).
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tail _exit
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.size _start, .-_start
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