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28 lines
915 B
C
28 lines
915 B
C
/* Host-only instruction measurements for the pinned Unicorn 2.1.4 checker.
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* Match the Python callback exactly: read SP before every ARM instruction. */
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#include <stdint.h>
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#include <stddef.h>
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typedef int (*mesh_reg_read)(void *, int, void *);
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struct mesh_arm_measurement {
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mesh_reg_read read_register;
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int sp_register, error;
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uint64_t minimum_sp, instructions;
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};
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size_t mesh_arm_measurement_size(void) { return sizeof(struct mesh_arm_measurement); }
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void mesh_arm_measure_instruction(void *engine, uint64_t address,
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uint32_t size, void *user)
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{
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struct mesh_arm_measurement *state = (struct mesh_arm_measurement *) user;
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uint32_t sp = 0;
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int error;
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(void) address;
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(void) size;
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error = state->read_register(engine, state->sp_register, &sp);
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if (error) state->error = error;
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if (sp < state->minimum_sp) state->minimum_sp = sp;
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++state->instructions;
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}
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