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Adding back private implementation of printf #3026

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Oct 3, 2024
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3 changes: 3 additions & 0 deletions CMake/Modules/FindNF_CoreCLR.cmake
Original file line number Diff line number Diff line change
Expand Up @@ -22,6 +22,7 @@ list(APPEND NF_CoreCLR_INCLUDE_DIRS ${CMAKE_SOURCE_DIR}/targets/${RTOS}/_include
list(APPEND NF_CoreCLR_INCLUDE_DIRS ${CMAKE_SOURCE_DIR}/src/CLR/Diagnostics)
list(APPEND NF_CoreCLR_INCLUDE_DIRS ${CMAKE_SOURCE_DIR}/src/CLR/Debugger)
list(APPEND NF_CoreCLR_INCLUDE_DIRS ${CMAKE_SOURCE_DIR}/src/CLR/Helpers/NanoRingBuffer)
list(APPEND NF_CoreCLR_INCLUDE_DIRS ${CMAKE_SOURCE_DIR}/src/CLR/Helpers/nanoprintf)
list(APPEND NF_CoreCLR_INCLUDE_DIRS ${CMAKE_SOURCE_DIR}/src/CLR/Helpers/Base64)
list(APPEND NF_CoreCLR_INCLUDE_DIRS ${CMAKE_SOURCE_DIR}/src/nanoFramework.Runtime.Events)
list(APPEND NF_CoreCLR_INCLUDE_DIRS ${CMAKE_SOURCE_DIR}/src/nanoFramework.Runtime.Native)
Expand Down Expand Up @@ -142,6 +143,7 @@ set(NF_CoreCLR_SRCS
Messaging_stub.cpp

# Helpers
nanoprintf.c
nanoRingBuffer.c
Info_Safeprintf.cpp

Expand Down Expand Up @@ -266,6 +268,7 @@ foreach(SRC_FILE ${NF_CoreCLR_SRCS})
${CMAKE_SOURCE_DIR}/src/CLR/Messaging

# Helpers
${CMAKE_SOURCE_DIR}/src/CLR/Helpers/nanoprintf
${CMAKE_SOURCE_DIR}/src/CLR/Helpers/NanoRingBuffer
${CMAKE_SOURCE_DIR}/src/CLR/Helpers/Base64
${CMAKE_SOURCE_DIR}/src/CLR/Diagnostics
Expand Down
4 changes: 4 additions & 0 deletions src/CLR/CorLib/CorLib.h
Original file line number Diff line number Diff line change
Expand Up @@ -14,4 +14,8 @@
#include "corlib_native.h"
#include "nanoCRT.h"

#ifndef VIRTUAL_DEVICE
#include <nanoprintf.h>
#endif // VIRTUAL_DEVICE

#endif // NANOCLR_CORLIB_NATIVE_H
10 changes: 5 additions & 5 deletions src/CLR/CorLib/CorLib.vcxproj
Original file line number Diff line number Diff line change
Expand Up @@ -152,7 +152,7 @@
<WarningLevel>Level3</WarningLevel>
<Optimization>Disabled</Optimization>
<PreprocessorDefinitions>_DEBUG;_LIB;%(PreprocessorDefinitions)</PreprocessorDefinitions>
<AdditionalIncludeDirectories>..\..\..\targets\win32\Include;..\Include;..\..\HAL\Include;..\..\PAL\Include;..\..\CLR\Helpers\Base64;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
<AdditionalIncludeDirectories>..\..\..\targets\win32\Include;..\..\CLR\Helpers\nanoprintf;..\Include;..\..\HAL\Include;..\..\PAL\Include;..\..\CLR\Helpers\Base64;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
</ClCompile>
<Link>
<SubSystem>Windows</SubSystem>
Expand All @@ -165,7 +165,7 @@
<WarningLevel>Level3</WarningLevel>
<Optimization>Disabled</Optimization>
<PreprocessorDefinitions>_DEBUG;_LIB;%(PreprocessorDefinitions)</PreprocessorDefinitions>
<AdditionalIncludeDirectories>..\..\..\targets\win32\Include;..\Include;..\..\HAL\Include;..\..\PAL\Include;..\..\CLR\Helpers\Base64;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
<AdditionalIncludeDirectories>..\..\..\targets\win32\Include;..\..\CLR\Helpers\nanoprintf;..\Include;..\..\HAL\Include;..\..\PAL\Include;..\..\CLR\Helpers\Base64;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
</ClCompile>
<Link>
<SubSystem>Windows</SubSystem>
Expand All @@ -180,7 +180,7 @@
<FunctionLevelLinking>true</FunctionLevelLinking>
<IntrinsicFunctions>true</IntrinsicFunctions>
<PreprocessorDefinitions>NDEBUG;_LIB;%(PreprocessorDefinitions)</PreprocessorDefinitions>
<AdditionalIncludeDirectories>..\..\..\targets\win32\Include;..\Include;..\..\HAL\Include;..\..\PAL\Include;..\..\CLR\Helpers\Base64;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
<AdditionalIncludeDirectories>..\..\..\targets\win32\Include;..\..\CLR\Helpers\nanoprintf;..\Include;..\..\HAL\Include;..\..\PAL\Include;..\..\CLR\Helpers\Base64;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
</ClCompile>
<Link>
<SubSystem>Windows</SubSystem>
Expand All @@ -197,7 +197,7 @@
<FunctionLevelLinking>true</FunctionLevelLinking>
<IntrinsicFunctions>true</IntrinsicFunctions>
<PreprocessorDefinitions>NDEBUG;_LIB;%(PreprocessorDefinitions)</PreprocessorDefinitions>
<AdditionalIncludeDirectories>..\..\..\targets\win32\Include;..\Include;..\..\HAL\Include;..\..\PAL\Include;..\..\CLR\Helpers\Base64;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
<AdditionalIncludeDirectories>..\..\..\targets\win32\Include;..\..\CLR\Helpers\nanoprintf;..\Include;..\..\HAL\Include;..\..\PAL\Include;..\..\CLR\Helpers\Base64;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
</ClCompile>
<Link>
<SubSystem>Windows</SubSystem>
Expand All @@ -208,4 +208,4 @@
<Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
<ImportGroup Label="ExtensionTargets">
</ImportGroup>
</Project>
</Project>
14 changes: 13 additions & 1 deletion src/CLR/CorLib/corlib_native_System_Number.cpp
Original file line number Diff line number Diff line change
@@ -1,9 +1,10 @@
//
//
// Copyright (c) .NET Foundation and Contributors
// Portions Copyright (c) Microsoft Corporation. All rights reserved.
// See LICENSE file in the project root for full license information.
//
#include "CorLib.h"
#include <nanoprintf.h>

// must be big enough to fit the biggest number
// decorated with negative signs, group separators, etc.
Expand Down Expand Up @@ -360,11 +361,22 @@ int Library_corlib_native_System_Number::Format_G(
defaultPrecision = 9;
break;
case DATATYPE_R8:
{
// from .NET documentation:
// When used with a Double value, the "G17" format specifier ensures that the original Double value
// successfully round-trips.
defaultPrecision = 17;

CLR_DOUBLE_TEMP_CAST number = (CLR_DOUBLE_TEMP_CAST)value->NumericByRef().r8;

// check if number is an integer
if (number == (CLR_INT64_TEMP_CAST)number)
{
// this is an integer, set precision to a value achievable by the library
defaultPrecision = 15;
}
break;
}
default:
break;
}
Expand Down
3 changes: 2 additions & 1 deletion src/CLR/Core/Core.vcxproj
Original file line number Diff line number Diff line change
Expand Up @@ -19,6 +19,7 @@
</ProjectConfiguration>
</ItemGroup>
<ItemGroup>
<ClCompile Include="..\Helpers\nanoprintf\nanoprintf.c" />
<ClCompile Include="Cache.cpp" />
<ClCompile Include="Checks.cpp" />
<ClCompile Include="CLR_RT_DblLinkedList.cpp" />
Expand Down Expand Up @@ -217,4 +218,4 @@
<Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
<ImportGroup Label="ExtensionTargets">
</ImportGroup>
</Project>
</Project>
3 changes: 3 additions & 0 deletions src/CLR/Core/Core.vcxproj.filters
Original file line number Diff line number Diff line change
Expand Up @@ -132,6 +132,9 @@
<ClCompile Include="CLR_RT_HeapBlock_Queue.cpp">
<Filter>Source Files</Filter>
</ClCompile>
<ClCompile Include="..\Helpers\nanoprintf\nanoprintf.c">
<Filter>Source Files</Filter>
</ClCompile>
<ClCompile Include="nanoSupport_CRC32.c">
<Filter>Source Files</Filter>
</ClCompile>
Expand Down
3 changes: 3 additions & 0 deletions src/CLR/Diagnostics/Diagnostics.h
Original file line number Diff line number Diff line change
Expand Up @@ -11,4 +11,7 @@
// #include <core.h>

#include <corlib_native.h>
#ifndef VIRTUAL_DEVICE
#include <nanoprintf.h>
#endif // VIRTUAL_DEVICE
// #include <spot_net_native.h>
8 changes: 4 additions & 4 deletions src/CLR/Diagnostics/Diagnostics.vcxproj
Original file line number Diff line number Diff line change
Expand Up @@ -105,7 +105,7 @@
<WarningLevel>Level3</WarningLevel>
<Optimization>Disabled</Optimization>
<PreprocessorDefinitions>_DEBUG;_LIB;%(PreprocessorDefinitions)</PreprocessorDefinitions>
<AdditionalIncludeDirectories>..\..\..\targets\win32\Include;..\Include;..\CorLib;..\..\HAL\Include;..\..\PAL\Include;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
<AdditionalIncludeDirectories>..\Helpers\nanoprintf;..\..\..\targets\win32\Include;..\Include;..\CorLib;..\..\HAL\Include;..\..\PAL\Include;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
</ClCompile>
<Link>
<SubSystem>Windows</SubSystem>
Expand All @@ -118,7 +118,7 @@
<WarningLevel>Level3</WarningLevel>
<Optimization>Disabled</Optimization>
<PreprocessorDefinitions>_DEBUG;_LIB;%(PreprocessorDefinitions)</PreprocessorDefinitions>
<AdditionalIncludeDirectories>..\..\..\targets\win32\Include;..\Include;..\CorLib;..\..\HAL\Include;..\..\PAL\Include;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
<AdditionalIncludeDirectories>..\Helpers\nanoprintf;..\..\..\targets\win32\Include;..\Include;..\CorLib;..\..\HAL\Include;..\..\PAL\Include;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
</ClCompile>
<Link>
<SubSystem>Windows</SubSystem>
Expand All @@ -133,7 +133,7 @@
<FunctionLevelLinking>true</FunctionLevelLinking>
<IntrinsicFunctions>true</IntrinsicFunctions>
<PreprocessorDefinitions>NDEBUG;_LIB;%(PreprocessorDefinitions)</PreprocessorDefinitions>
<AdditionalIncludeDirectories>..\..\..\targets\win32\Include;..\Include;..\CorLib;..\..\HAL\Include;..\..\PAL\Include;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
<AdditionalIncludeDirectories>..\Helpers\nanoprintf;..\..\..\targets\win32\Include;..\Include;..\CorLib;..\..\HAL\Include;..\..\PAL\Include;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
</ClCompile>
<Link>
<SubSystem>Windows</SubSystem>
Expand All @@ -150,7 +150,7 @@
<FunctionLevelLinking>true</FunctionLevelLinking>
<IntrinsicFunctions>true</IntrinsicFunctions>
<PreprocessorDefinitions>NDEBUG;_LIB;%(PreprocessorDefinitions)</PreprocessorDefinitions>
<AdditionalIncludeDirectories>..\..\..\targets\win32\Include;..\Include;..\CorLib;..\..\HAL\Include;..\..\PAL\Include;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
<AdditionalIncludeDirectories>..\Helpers\nanoprintf;..\..\..\targets\win32\Include;..\Include;..\CorLib;..\..\HAL\Include;..\..\PAL\Include;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
</ClCompile>
<Link>
<SubSystem>Windows</SubSystem>
Expand Down
13 changes: 5 additions & 8 deletions src/CLR/Diagnostics/Info_Safeprintf.cpp
Original file line number Diff line number Diff line change
Expand Up @@ -5,22 +5,19 @@
//

#include <nanoCLR_Types.h>
#include <nanoprintf.h>

bool CLR_SafeSprintfV(char *&szBuffer, size_t &iBuffer, const char *format, va_list arg)
{
NATIVE_PROFILE_CLR_DIAGNOSTICS();

size_t chars = vsnprintf(szBuffer, iBuffer, format, arg);
bool fRes = (chars < iBuffer);
int chars = vsnprintf(szBuffer, iBuffer, format, arg);
bool fRes = (chars >= 0);

if (!fRes)
{
// If the buffer was too small, set chars to iBuffer - 1 to ensure null-termination
chars = iBuffer - 1;
}
if (fRes == false)
chars = (int)iBuffer;

szBuffer += chars;
// Null-terminate the buffer
szBuffer[0] = 0;
iBuffer -= chars;

Expand Down
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