71d3379438
This patch adds a plugin that exercises the virtual and hardware memory read-write API functions added in a previous patch. The plugin takes a target and patch byte sequence, and will overwrite any instruction matching the target byte sequence with the patch. Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org> Signed-off-by: Rowan Hart <rowanbhart@gmail.com> Message-ID: <20250624175351.440780-8-rowanbhart@gmail.com> [AJB: tweak Makefile, use uintptr_t for pointer stuffing] Signed-off-by: Alex Bennée <alex.bennee@linaro.org> Message-ID: <20250627112512.1880708-12-alex.bennee@linaro.org>
22 lines
474 B
C
22 lines
474 B
C
/*
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* SPDX-License-Identifier: GPL-2.0-or-later
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*
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* This test target increments a value 100 times. The patcher converts the
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* inc instruction to a nop, so it only increments the value once.
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*
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*/
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#include <minilib.h>
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int main(void)
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{
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ml_printf("Running test...\n");
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unsigned int x = 0;
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for (int i = 0; i < 100; i++) {
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asm volatile (
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"inc %[x]"
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: [x] "+a" (x)
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);
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}
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ml_printf("Value: %d\n", x);
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return 0;
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}
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