libipt: fix compiler warnings

* addressing MSVC compiler warnings for boolean operations on
  different enum types without explicit cast
* address Intel compiler warnings for using uninitialized vars
  used as const pointer argument for testing

Signed-off-by: Thomas Bininda <[email protected]>

Author: schribl

libipt/src/pt_encoder.c

@@ -695,7 +695,7 @@ int pt_enc_next(struct pt_encoder *encoder, const struct pt_packet *packet)
 		*pos++ = pt_opc_ext;
 		*pos++ = pt_ext_cfe;
 
-		type = packet->payload.cfe.type & pt_pl_cfe_type;
+		type = (uint8_t) packet->payload.cfe.type & (uint8_t) pt_pl_cfe_type;
 		if (packet->payload.cfe.ip)
 			type |= pt_pl_cfe_ip;
 
@@ -714,7 +714,7 @@ int pt_enc_next(struct pt_encoder *encoder, const struct pt_packet *packet)
 		*pos++ = pt_opc_ext;
 		*pos++ = pt_ext_evd;
 
-		*pos++ = packet->payload.evd.type & pt_pl_evd_type;
+		*pos++ = (uint8_t) packet->payload.evd.type & (uint8_t) pt_pl_evd_type;
 		pos = pt_encode_int(pos, packet->payload.evd.payload,
 				    pt_pl_evd_pl_size);
 

libipt/test/src/ptunit-block_decoder.c

@@ -278,6 +278,8 @@ static struct ptunit_result asid_null(void)
 	struct pt_asid asid;
 	int errcode;
 
+	memset(&decoder, 0, sizeof(decoder));
+
 	errcode = pt_blk_asid(NULL, &asid, sizeof(asid));
 	ptu_int_eq(errcode, -pte_invalid);
 

libipt/test/src/ptunit-config.c

@@ -473,6 +473,8 @@ static struct ptunit_result cpu_errata_null(void)
 	struct pt_cpu cpu;
 	int errcode;
 
+	memset(&cpu, 0, sizeof(cpu));
+
 	errcode = pt_cpu_errata(&errata, NULL);
 	ptu_int_eq(errcode, -pte_invalid);
 

libipt/test/src/ptunit-insn_decoder.c

@@ -248,6 +248,8 @@ static struct ptunit_result time_null(void)
 	uint32_t lost_mtc, lost_cyc;
 	int errcode;
 
+	memset(&decoder, 0, sizeof(decoder));
+
 	errcode = pt_insn_time(NULL, &time, &lost_mtc, &lost_cyc);
 	ptu_int_eq(errcode, -pte_invalid);
 
@@ -278,6 +280,8 @@ static struct ptunit_result asid_null(void)
 	struct pt_asid asid;
 	int errcode;
 
+	memset(&decoder, 0, sizeof(decoder));
+
 	errcode = pt_insn_asid(NULL, &asid, sizeof(asid));
 	ptu_int_eq(errcode, -pte_invalid);