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//===-- DNBRegisterInfo.cpp -------------------------------------*- C++ -*-===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
//
// Created by Greg Clayton on 8/3/07.
//
//===----------------------------------------------------------------------===//
#include "DNBRegisterInfo.h"
#include "DNBLog.h"
#include <string.h>
DNBRegisterValueClass::DNBRegisterValueClass(const DNBRegisterInfo *regInfo) {
Clear();
if (regInfo)
info = *regInfo;
}
void DNBRegisterValueClass::Clear() {
memset(&info, 0, sizeof(DNBRegisterInfo));
memset(&value, 0, sizeof(value));
}
bool DNBRegisterValueClass::IsValid() const {
return info.name != NULL && info.type != InvalidRegType && info.size > 0 &&
info.size <= sizeof(value);
}
#define PRINT_COMMA_SEPARATOR \
do { \
if (pos < end) { \
if (i > 0) { \
strlcpy(pos, ", ", end - pos); \
pos += 2; \
} \
} \
} while (0)
void DNBRegisterValueClass::Dump(const char *pre, const char *post) const {
if (info.name != NULL) {
char str[1024];
char *pos;
char *end = str + sizeof(str);
if (info.format == Hex) {
switch (info.size) {
case 0:
snprintf(str, sizeof(str), "%s",
"error: invalid register size of zero.");
break;
case 1:
snprintf(str, sizeof(str), "0x%2.2x", value.uint8);
break;
case 2:
snprintf(str, sizeof(str), "0x%4.4x", value.uint16);
break;
case 4:
snprintf(str, sizeof(str), "0x%8.8x", value.uint32);
break;
case 8:
snprintf(str, sizeof(str), "0x%16.16llx", value.uint64);
break;
case 16:
snprintf(str, sizeof(str), "0x%16.16llx%16.16llx", value.v_uint64[0],
value.v_uint64[1]);
break;
default:
strlcpy(str, "0x", 3);
pos = str + 2;
for (uint32_t i = 0; i < info.size; ++i) {
if (pos < end)
pos +=
snprintf(pos, end - pos, "%2.2x", (uint32_t)value.v_uint8[i]);
}
break;
}
} else {
switch (info.type) {
case Uint:
switch (info.size) {
case 1:
snprintf(str, sizeof(str), "%u", value.uint8);
break;
case 2:
snprintf(str, sizeof(str), "%u", value.uint16);
break;
case 4:
snprintf(str, sizeof(str), "%u", value.uint32);
break;
case 8:
snprintf(str, sizeof(str), "%llu", value.uint64);
break;
default:
snprintf(str, sizeof(str), "error: unsupported uint byte size %d.",
info.size);
break;
}
break;
case Sint:
switch (info.size) {
case 1:
snprintf(str, sizeof(str), "%d", value.sint8);
break;
case 2:
snprintf(str, sizeof(str), "%d", value.sint16);
break;
case 4:
snprintf(str, sizeof(str), "%d", value.sint32);
break;
case 8:
snprintf(str, sizeof(str), "%lld", value.sint64);
break;
default:
snprintf(str, sizeof(str), "error: unsupported sint byte size %d.",
info.size);
break;
}
break;
case IEEE754:
switch (info.size) {
case 4:
snprintf(str, sizeof(str), "%f", value.float32);
break;
case 8:
snprintf(str, sizeof(str), "%g", value.float64);
break;
default:
snprintf(str, sizeof(str), "error: unsupported float byte size %d.",
info.size);
break;
}
break;
case Vector:
if (info.size > 0) {
switch (info.format) {
case VectorOfSInt8:
snprintf(str, sizeof(str), "%s", "sint8 { ");
pos = str + strlen(str);
for (uint32_t i = 0; i < info.size; ++i) {
PRINT_COMMA_SEPARATOR;
if (pos < end)
pos +=
snprintf(pos, end - pos, "%d", (int32_t)value.v_sint8[i]);
}
strlcat(str, " }", sizeof(str));
break;
default:
DNBLogError(
"unsupported vector format %d, defaulting to hex bytes.",
info.format);
[[clang::fallthrough]];
case VectorOfUInt8:
snprintf(str, sizeof(str), "%s", "uint8 { ");
pos = str + strlen(str);
for (uint32_t i = 0; i < info.size; ++i) {
PRINT_COMMA_SEPARATOR;
if (pos < end)
pos +=
snprintf(pos, end - pos, "%u", (uint32_t)value.v_uint8[i]);
}
break;
case VectorOfSInt16:
snprintf(str, sizeof(str), "%s", "sint16 { ");
pos = str + strlen(str);
for (uint32_t i = 0; i < info.size / 2; ++i) {
PRINT_COMMA_SEPARATOR;
if (pos < end)
pos +=
snprintf(pos, end - pos, "%d", (int32_t)value.v_sint16[i]);
}
break;
case VectorOfUInt16:
snprintf(str, sizeof(str), "%s", "uint16 { ");
pos = str + strlen(str);
for (uint32_t i = 0; i < info.size / 2; ++i) {
PRINT_COMMA_SEPARATOR;
if (pos < end)
pos +=
snprintf(pos, end - pos, "%u", (uint32_t)value.v_uint16[i]);
}
break;
case VectorOfSInt32:
snprintf(str, sizeof(str), "%s", "sint32 { ");
pos = str + strlen(str);
for (uint32_t i = 0; i < info.size / 4; ++i) {
PRINT_COMMA_SEPARATOR;
if (pos < end)
pos +=
snprintf(pos, end - pos, "%d", (int32_t)value.v_sint32[i]);
}
break;
case VectorOfUInt32:
snprintf(str, sizeof(str), "%s", "uint32 { ");
pos = str + strlen(str);
for (uint32_t i = 0; i < info.size / 4; ++i) {
PRINT_COMMA_SEPARATOR;
if (pos < end)
pos +=
snprintf(pos, end - pos, "%u", (uint32_t)value.v_uint32[i]);
}
break;
case VectorOfFloat32:
snprintf(str, sizeof(str), "%s", "float32 { ");
pos = str + strlen(str);
for (uint32_t i = 0; i < info.size / 4; ++i) {
PRINT_COMMA_SEPARATOR;
if (pos < end)
pos += snprintf(pos, end - pos, "%f", value.v_float32[i]);
}
break;
case VectorOfUInt128:
snprintf(str, sizeof(str), "%s", "uint128 { ");
pos = str + strlen(str);
for (uint32_t i = 0; i < info.size / 16; ++i) {
PRINT_COMMA_SEPARATOR;
if (pos < end)
pos += snprintf(pos, end - pos, "0x%16.16llx%16.16llx",
value.v_uint64[i], value.v_uint64[i + 1]);
}
break;
}
strlcat(str, " }", sizeof(str));
} else {
snprintf(str, sizeof(str), "error: unsupported vector size %d.",
info.size);
}
break;
default:
snprintf(str, sizeof(str), "error: unsupported register type %d.",
info.type);
break;
}
}
DNBLog("%s%4s = %s%s", pre ? pre : "", info.name, str, post ? post : "");
}
}
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