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/*
* Copyright (C) 2017-2020 Intel Corporation
*
* SPDX-License-Identifier: MIT
*
*/
#include "print_formatter.h"
#include "shared/source/helpers/string.h"
#include <iostream>
namespace NEO {
PrintFormatter::PrintFormatter(const uint8_t *printfOutputBuffer, uint32_t printfOutputBufferMaxSize,
bool using32BitPointers, const StringMap &stringLiteralMap)
: printfOutputBuffer(printfOutputBuffer),
printfOutputBufferSize(printfOutputBufferMaxSize),
stringLiteralMap(stringLiteralMap),
using32BitPointers(using32BitPointers) {
}
void PrintFormatter::printKernelOutput(const std::function<void(char *)> &print) {
currentOffset = 0;
// first 4 bytes of the buffer store the actual size of data that was written by printf from within EUs
uint32_t printfOutputBufferSizeRead = 0;
read(&printfOutputBufferSizeRead);
printfOutputBufferSize = std::min(printfOutputBufferSizeRead, printfOutputBufferSize);
uint32_t stringIndex = 0;
while (currentOffset + 4 <= printfOutputBufferSize) {
read(&stringIndex);
const char *formatString = queryPrintfString(stringIndex);
if (formatString != nullptr) {
printString(formatString, print);
}
}
}
void PrintFormatter::printString(const char *formatString, const std::function<void(char *)> &print) {
size_t length = strnlen_s(formatString, maxPrintfOutputLength);
char output[maxPrintfOutputLength];
size_t cursor = 0;
for (size_t i = 0; i <= length; i++) {
if (formatString[i] == '\\')
output[cursor++] = escapeChar(formatString[++i]);
else if (formatString[i] == '%') {
size_t end = i;
if (end + 1 <= length && formatString[end + 1] == '%') {
output[cursor++] = '%';
continue;
}
while (isConversionSpecifier(formatString[end++]) == false && end < length)
;
char dataFormat[maxPrintfOutputLength];
memcpy_s(dataFormat, maxPrintfOutputLength, formatString + i, end - i);
dataFormat[end - i] = '\0';
if (formatString[end - 1] == 's')
cursor += printStringToken(output + cursor, maxPrintfOutputLength - cursor, dataFormat);
else
cursor += printToken(output + cursor, maxPrintfOutputLength - cursor, dataFormat);
i = end - 1;
} else {
output[cursor++] = formatString[i];
}
}
print(output);
}
void PrintFormatter::stripVectorFormat(const char *format, char *stripped) {
while (*format != '\0') {
if (*format != 'v') {
*stripped = *format;
} else if (*(format + 1) != '1') {
format += 2;
continue;
} else {
format += 3;
continue;
}
stripped++;
format++;
}
*stripped = '\0';
}
void PrintFormatter::stripVectorTypeConversion(char *format) {
size_t len = strlen(format);
if (len > 3 && format[len - 3] == 'h' && format[len - 2] == 'l') {
format[len - 3] = format[len - 1];
format[len - 2] = '\0';
}
}
size_t PrintFormatter::printToken(char *output, size_t size, const char *formatString) {
PRINTF_DATA_TYPE type(PRINTF_DATA_TYPE::INVALID);
read(&type);
switch (type) {
case PRINTF_DATA_TYPE::BYTE:
return typedPrintToken<int8_t>(output, size, formatString);
case PRINTF_DATA_TYPE::SHORT:
return typedPrintToken<int16_t>(output, size, formatString);
case PRINTF_DATA_TYPE::INT:
return typedPrintToken<int>(output, size, formatString);
case PRINTF_DATA_TYPE::FLOAT:
return typedPrintToken<float>(output, size, formatString);
case PRINTF_DATA_TYPE::LONG:
return typedPrintToken<int64_t>(output, size, formatString);
case PRINTF_DATA_TYPE::POINTER:
return printPointerToken(output, size, formatString);
case PRINTF_DATA_TYPE::DOUBLE:
return typedPrintToken<double>(output, size, formatString);
case PRINTF_DATA_TYPE::VECTOR_BYTE:
return typedPrintVectorToken<int8_t>(output, size, formatString);
case PRINTF_DATA_TYPE::VECTOR_SHORT:
return typedPrintVectorToken<int16_t>(output, size, formatString);
case PRINTF_DATA_TYPE::VECTOR_INT:
return typedPrintVectorToken<int>(output, size, formatString);
case PRINTF_DATA_TYPE::VECTOR_LONG:
return typedPrintVectorToken<int64_t>(output, size, formatString);
case PRINTF_DATA_TYPE::VECTOR_FLOAT:
return typedPrintVectorToken<float>(output, size, formatString);
case PRINTF_DATA_TYPE::VECTOR_DOUBLE:
return typedPrintVectorToken<double>(output, size, formatString);
default:
return 0;
}
}
size_t PrintFormatter::printStringToken(char *output, size_t size, const char *formatString) {
int index = 0;
int type = 0;
// additional read to discard the token
read(&type);
read(&index);
if (type == static_cast<int>(PRINTF_DATA_TYPE::STRING)) {
return simple_sprintf(output, size, formatString, queryPrintfString(index));
} else {
return simple_sprintf(output, size, formatString, 0);
}
}
size_t PrintFormatter::printPointerToken(char *output, size_t size, const char *formatString) {
uint64_t value = {0};
read(&value);
if (using32BitPointers) {
value &= 0x00000000FFFFFFFF;
}
return simple_sprintf(output, size, formatString, value);
}
char PrintFormatter::escapeChar(char escape) {
switch (escape) {
case 'n':
return '\n';
default:
return escape;
}
}
bool PrintFormatter::isConversionSpecifier(char c) {
switch (c) {
case 'd':
case 'i':
case 'o':
case 'u':
case 'x':
case 'X':
case 'a':
case 'A':
case 'e':
case 'E':
case 'f':
case 'F':
case 'g':
case 'G':
case 's':
case 'c':
case 'p':
return true;
default:
return false;
}
}
const char *PrintFormatter::queryPrintfString(uint32_t index) const {
auto stringEntry = stringLiteralMap.find(index);
return stringEntry == stringLiteralMap.end() ? nullptr : stringEntry->second.c_str();
}
} // namespace NEO
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