Merge commit '802798ce3c8baa4697120580f87bc1ee377306d3' as 'external/capstone'

external/capstone/tests/unit/riscv_sysreg.c

@@ -0,0 +1,83 @@
+#include "unit_test.h"
+#include <capstone/capstone.h>
+#include <stdio.h>
+#include <inttypes.h>
+
+static bool test_riscv_sysreg()
+{
+	printf("Test test_riscv_sysreg\n");
+	// csrr a0, sstatus (0x10002573)
+	// csrr a0, mtvec   (0x30502573)
+	// csrr a0, mcause  (0x34202573)
+	static const uint8_t code[] = {
+		0x73, 0x25, 0x00, 0x10, 0x73, 0x25,
+		0x50, 0x30, 0x73, 0x25, 0x20, 0x34,
+	};
+	static const uint16_t expected_sysregs[] = {
+		RISCV_SYSREG_SSTATUS,
+		RISCV_SYSREG_MTVEC,
+		RISCV_SYSREG_MCAUSE,
+	};
+
+	csh handle;
+	if (cs_open(CS_ARCH_RISCV, CS_MODE_RISCV64, &handle) != CS_ERR_OK) {
+		return false;
+	}
+	cs_option(handle, CS_OPT_DETAIL, CS_OPT_ON);
+	cs_insn *insn;
+	size_t count = cs_disasm(handle, code, sizeof(code), 0, 0, &insn);
+
+	if (count != 3) {
+		cs_close(&handle);
+		return false;
+	}
+
+	for (size_t i = 0; i < count; i++) {
+		cs_riscv *riscv = &insn[i].detail->riscv;
+		bool found_sysreg = false;
+		for (size_t j = 0; j < riscv->op_count; j++) {
+			if (riscv->operands[j].type == RISCV_OP_CSR) {
+				CHECK_INT_EQUAL_RET_FALSE(
+					(size_t)riscv->operands[j].csr,
+					(int32_t)expected_sysregs[i]);
+				found_sysreg = true;
+
+				switch (riscv->operands[j].csr) {
+				case RISCV_SYSREG_SSTATUS:
+					printf("  Found SSTATUS\n");
+					break;
+				case RISCV_SYSREG_MTVEC:
+					printf("  Found MTVEC\n");
+					break;
+				case RISCV_SYSREG_MCAUSE:
+					printf("  Found MCAUSE\n");
+					break;
+				default:
+					printf("  Found other sysreg: 0x%x\n",
+					       riscv->operands[j].csr);
+					break;
+				}
+			}
+		}
+		if (!found_sysreg) {
+			printf("  CSR operand not found in instruction %zu\n",
+			       i);
+			cs_free(insn, count);
+			cs_close(&handle);
+			return false;
+		}
+	}
+
+	cs_free(insn, count);
+	cs_close(&handle);
+	return true;
+}
+
+int main(void)
+{
+	if (test_riscv_sysreg()) {
+		return 0;
+	} else {
+		return 1;
+	}
+}