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benchmark: build the AArch64 cycle counter under MSVC/ARM64 #10947

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f46a48c
benchmark: build the AArch64 cycle counter under MSVC/ARM64
night1rider Jul 17, 2026
59c7951
benchmark: build and run the wolfCrypt benchmark in Windows ARM64 CI
night1rider Jul 24, 2026
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12 changes: 11 additions & 1 deletion .github/workflows/windows-arm64.yml
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Original file line number Diff line number Diff line change
Expand Up @@ -34,7 +34,7 @@ jobs:
# false: pure-C ARM64 build. true: assemble the ARMv8 crypto .asm and
# enable the matching WOLFSSL_ARMASM code paths.
asm: [ false, true ]
timeout-minutes: 10
timeout-minutes: 15
env:
SOLUTION_FILE_PATH: wolfssl64.sln
BUILD_CONFIGURATION: Release
Expand All @@ -55,3 +55,13 @@ jobs:
- name: Run Test
working-directory: ${{env.GITHUB_WORKSPACE}}
run: Release/ARM64/testsuite.exe

# Build + run the wolfCrypt benchmark: exercises the MSVC/ARM64 cycle counter
# (and the ARMv8 asm on asm=true), reusing the wolfssl lib the solution built.
- name: Build Benchmark
working-directory: ${{env.GITHUB_WORKSPACE}}
run: msbuild /m /p:PlatformToolset=v143 /p:Platform=ARM64 /p:Configuration=${{env.BUILD_CONFIGURATION}} /p:WolfSSLAarch64Asm=${{matrix.asm}} wolfcrypt/benchmark/benchmark.vcxproj

- name: Run Benchmark
working-directory: ${{env.GITHUB_WORKSPACE}}
run: wolfcrypt/benchmark/Release/ARM64/benchmark.exe
20 changes: 20 additions & 0 deletions wolfcrypt/benchmark/benchmark.c
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Original file line number Diff line number Diff line change
Expand Up @@ -81,6 +81,12 @@
#include <wolfssl/wolfcrypt/asn.h>
#include <wolfssl/version.h>

#if defined(_MSC_VER) && defined(_M_ARM64)
/* MSVC has no inline asm on ARM64. Pull in the system register intrinsics
* (_ReadStatusReg, __isb) the AArch64 cycle counter below uses. */
#include <intrin.h>
#endif

#ifdef WOLFSSL_LINUXKM
/* remap current_time() -- collides with a function in kernel linux/fs.h */
#define current_time benchmark_current_time
Expand Down Expand Up @@ -4867,13 +4873,20 @@ static void print_cpu_features(void)
static void print_clock_freq(void)
{
#ifdef __aarch64__
#if defined(_MSC_VER)
/* MSVC/ARM64: no inline asm. Read CNTFRQ_EL0 (3,3,14,0,0) via the
* system register intrinsic. */
__isb(_ARM64_BARRIER_SY);
tick_freq = (word64)_ReadStatusReg(ARM64_SYSREG(3, 3, 14, 0, 0));
#else
__asm__ __volatile__ (
"isb\n\t"
"mrs %[freq], cntfrq_el0\n\t"
: [freq] "=r" (tick_freq)
:
:
);
#endif
if (tick_freq != 0 && actual_freq != 0) {
printf("Tick frequency: %ld Hz, Clock frequency: %ld Hz\n", tick_freq,
actual_freq);
Expand Down Expand Up @@ -17315,6 +17328,12 @@ void bench_mldsaKeySign(byte level)
static WC_INLINE word64 get_aarch64_cycles(void)
{
word64 ticks;
#if defined(_MSC_VER)
/* MSVC/ARM64: no inline asm. Read CNTVCT_EL0 (3,3,14,0,2) via the
* system register intrinsic. */
__isb(_ARM64_BARRIER_SY);
ticks = (word64)_ReadStatusReg(ARM64_SYSREG(3, 3, 14, 0, 2));
#else
__asm__ __volatile__ (
"isb\n\t"
#ifdef __APPLE__
Expand All @@ -17326,6 +17345,7 @@ void bench_mldsaKeySign(byte level)
:
:
);
#endif
if ((tick_freq != 0) && (actual_freq != 0)) {
ticks *= actual_freq / tick_freq;
}
Expand Down
74 changes: 74 additions & 0 deletions wolfcrypt/benchmark/benchmark.vcxproj
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Original file line number Diff line number Diff line change
Expand Up @@ -17,6 +17,14 @@
<Configuration>Release</Configuration>
<Platform>x64</Platform>
</ProjectConfiguration>
<ProjectConfiguration Include="Debug|ARM64">
<Configuration>Debug</Configuration>
<Platform>ARM64</Platform>
</ProjectConfiguration>
<ProjectConfiguration Include="Release|ARM64">
<Configuration>Release</Configuration>
<Platform>ARM64</Platform>
</ProjectConfiguration>
</ItemGroup>
<PropertyGroup Label="Globals">
<VCProjectVersion>17.0</VCProjectVersion>
Expand All @@ -38,6 +46,12 @@
<PropertyGroup Label="Configuration" Condition="'$(Configuration)|$(Platform)'=='Release|x64'">
<PlatformToolset>v143</PlatformToolset>
</PropertyGroup>
<PropertyGroup Label="Configuration" Condition="'$(Configuration)|$(Platform)'=='Debug|ARM64'">
<PlatformToolset>v143</PlatformToolset>
</PropertyGroup>
<PropertyGroup Label="Configuration" Condition="'$(Configuration)|$(Platform)'=='Release|ARM64'">
<PlatformToolset>v143</PlatformToolset>
</PropertyGroup>
<Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />
<ImportGroup Label="ExtensionSettings">
</ImportGroup>
Expand Down Expand Up @@ -71,6 +85,18 @@
<IntDir>Release\</IntDir>
<LinkIncremental>true</LinkIncremental>
</PropertyGroup>
<!-- ARM64 outputs land beside testsuite.exe when built via the solution;
standalone builds resolve relative to this directory (SolutionDir empty). -->
<PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|ARM64'">
<OutDir>$(SolutionDir)$(Configuration)\$(Platform)\</OutDir>
<IntDir>$(Configuration)\$(Platform)\$(ProjectName)_obj\</IntDir>
<LinkIncremental>false</LinkIncremental>
</PropertyGroup>
<PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|ARM64'">
<OutDir>$(SolutionDir)$(Configuration)\$(Platform)\</OutDir>
<IntDir>$(Configuration)\$(Platform)\$(ProjectName)_obj\</IntDir>
<LinkIncremental>false</LinkIncremental>
</PropertyGroup>
<ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
<ClCompile>
<Optimization>Disabled</Optimization>
Expand Down Expand Up @@ -149,6 +175,54 @@
<TargetMachine>MachineX64</TargetMachine>
</Link>
</ItemDefinitionGroup>
<ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|ARM64'">
<ClCompile>
<Optimization>Disabled</Optimization>
<AdditionalIncludeDirectories>../..;../../IDE/WIN;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
<PreprocessorDefinitions>WIN32;_DEBUG;_CONSOLE;WOLFSSL_LIB;WOLFSSL_USER_SETTINGS;%(PreprocessorDefinitions)</PreprocessorDefinitions>
<BasicRuntimeChecks>EnableFastChecks</BasicRuntimeChecks>
<RuntimeLibrary>MultiThreadedDebugDLL</RuntimeLibrary>
<PrecompiledHeader />
<WarningLevel>Level3</WarningLevel>
<DebugInformationFormat>ProgramDatabase</DebugInformationFormat>
<TreatAngleIncludeAsExternal>false</TreatAngleIncludeAsExternal>
</ClCompile>
<Link>
<AdditionalDependencies>Ws2_32.lib;%(AdditionalDependencies)</AdditionalDependencies>
<GenerateDebugInformation>true</GenerateDebugInformation>
<SubSystem>Console</SubSystem>
</Link>
</ItemDefinitionGroup>
<ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|ARM64'">
<ClCompile>
<AdditionalIncludeDirectories>../..;../../IDE/WIN;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
<PreprocessorDefinitions>WIN32;NDEBUG;_CONSOLE;WOLFSSL_LIB;WOLFSSL_USER_SETTINGS;%(PreprocessorDefinitions)</PreprocessorDefinitions>
<RuntimeLibrary>MultiThreadedDLL</RuntimeLibrary>
<PrecompiledHeader />
<WarningLevel>Level3</WarningLevel>
<DebugInformationFormat>ProgramDatabase</DebugInformationFormat>
<TreatAngleIncludeAsExternal>false</TreatAngleIncludeAsExternal>
</ClCompile>
<Link>
<AdditionalDependencies>Ws2_32.lib;%(AdditionalDependencies)</AdditionalDependencies>
<GenerateDebugInformation>true</GenerateDebugInformation>
<SubSystem>Console</SubSystem>
<OptimizeReferences>true</OptimizeReferences>
<EnableCOMDATFolding>true</EnableCOMDATFolding>
</Link>
</ItemDefinitionGroup>
<ItemDefinitionGroup Condition="'$(WolfSSLIntelAsm)'=='true' And '$(Platform)'=='x64'">
<ClCompile>
<PreprocessorDefinitions>USE_INTEL_SPEEDUP;WOLFSSL_X86_64_BUILD;%(PreprocessorDefinitions)</PreprocessorDefinitions>
</ClCompile>
</ItemDefinitionGroup>
<!-- Keep WOLFSSL_ARMASM consistent with the library (set by
/p:WolfSSLAarch64Asm=true) so struct layouts match. -->
<ItemDefinitionGroup Condition="'$(WolfSSLAarch64Asm)'=='true' And '$(Platform)'=='ARM64'">
<ClCompile>
<PreprocessorDefinitions>WOLFSSL_ARMASM;WOLFSSL_ARMASM_CRYPTO_SHA3;WOLFSSL_ARMASM_CRYPTO_SHA512;%(PreprocessorDefinitions)</PreprocessorDefinitions>
</ClCompile>
</ItemDefinitionGroup>
<ItemGroup>
<ClCompile Include="benchmark.c" />
</ItemGroup>
Expand Down
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