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Merged
luhenry merged 12 commits into from
Mar 31, 2026
Merged

Add Windows native BLAS support (UCRT64 JNI DLL + CI) #39

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95dad14
Fix UnsupportedOperationException on Windows in JNI* loaders
philwalk Mar 15, 2026
1a76ac6
Add Windows native build support (UCRT64 JNI DLL + CI workflow)
philwalk Mar 20, 2026
170a1d8
fix for powershell mvn errors
philwalk Mar 20, 2026
48bc52b
added required ucr64 lib
philwalk Mar 20, 2026
eab9b04
resolve ucrt64 path for powershell
philwalk Mar 20, 2026
9865547
moved build steps to Makefile
philwalk Mar 29, 2026
f4ac573
path to ucrt64 gcc in pom
philwalk Mar 29, 2026
4be07f3
modify how gcc is called in pom
philwalk Mar 29, 2026
b8a9403
adjust compiler paths
philwalk Mar 29, 2026
7d1dcef
update arpack/lapack
philwalk Mar 29, 2026
278d0e1
update generator.py for windows support
philwalk Mar 31, 2026
2696850
removed redundant mvn args
philwalk Mar 31, 2026
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80 changes: 79 additions & 1 deletion .github/workflows/build-and-test.yml
100644 → 100755
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Original file line number Diff line number Diff line change
Expand Up @@ -35,10 +35,47 @@ jobs:
*/target/native/macos-*/
if-no-files-found: error

build-windows-natives:
name: "Build: Windows Natives"
runs-on: windows-latest
steps:
- uses: actions/checkout@v4
- name: Cache M2 local repository
uses: actions/cache@v4
with:
path: ~/.m2/repository
key: m2
- name: Set up JDK 25
uses: actions/setup-java@v4
with:
java-version: 25
distribution: temurin
- name: Set up MSYS2 (UCRT64)
uses: msys2/setup-msys2@v2
with:
msystem: UCRT64
update: false
install: >-
mingw-w64-ucrt-x86_64-gcc
mingw-w64-ucrt-x86_64-dlfcn
make
- name: Add MSYS2 UCRT64 to PATH
shell: msys2 {0}
run: echo "$(cygpath -w /ucrt64/bin)" >> $GITHUB_PATH
- name: Build
run: mvn --batch-mode --no-transfer-progress compile
- name: Upload Windows natives
uses: actions/upload-artifact@v4
with:
name: windows-natives
path: |
*/target/native/windows-*/
if-no-files-found: error

build-jar:
name: "Build: Packaging JARs"
runs-on: ubuntu-latest
needs: [build-macos-natives]
needs: [build-macos-natives, build-windows-natives]
steps:
- uses: actions/checkout@v4
- name: Cache M2 local repository
Expand All @@ -60,6 +97,11 @@ jobs:
with:
name: macos-natives
path: .
- name: Download Windows natives
uses: actions/download-artifact@v4
with:
name: windows-natives
path: .
- name: Build
run: mvn --batch-mode --no-transfer-progress package -DskipTests
- name: Log content of jar files
Expand Down Expand Up @@ -137,3 +179,39 @@ jobs:
distribution: temurin
- name: Test
run: mvn --batch-mode --no-transfer-progress --projects test-utils,blas,lapack,arpack test --fail-at-end -Dmaven.main.skip=true -Dmaven.antrun.skip=true

test-windows:
name: "Test: runs-on: windows-latest, jdk: ${{ matrix.jdk }}"
runs-on: windows-latest
needs: [build-jar]
strategy:
matrix:
jdk: [11, 17, 21, 25]
steps:
- uses: actions/checkout@v4
- name: Cache M2 local repository
uses: actions/cache@v4
with:
path: ~/.m2/repository
key: m2
- name: Set up MSYS2 (UCRT64) with OpenBLAS
uses: msys2/setup-msys2@v2
with:
msystem: UCRT64
update: false
install: mingw-w64-ucrt-x86_64-openblas
- name: Add MSYS2 ucrt64 bin to PATH
shell: msys2 {0}
run: echo "$(cygpath -w /ucrt64/bin)" >> $GITHUB_PATH
- name: Download target folder
uses: actions/download-artifact@v4
with:
name: target-dir
path: .
- name: Set up JDK ${{ matrix.jdk }}
uses: actions/setup-java@v4
with:
java-version: ${{ matrix.jdk }}
distribution: temurin
- name: Test
run: mvn --batch-mode --no-transfer-progress --projects test-utils,blas test --fail-at-end "-Dmaven.main.skip=true" "-Dmaven.antrun.skip=true"
82 changes: 80 additions & 2 deletions .github/workflows/release.yml
100644 → 100755
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Original file line number Diff line number Diff line change
Expand Up @@ -35,10 +35,47 @@ jobs:
*/target/native/macos-*/
if-no-files-found: error

build-windows-natives:
name: "Build: Windows Natives"
runs-on: windows-latest
steps:
- uses: actions/checkout@v4
- name: Cache M2 local repository
uses: actions/cache@v4
with:
path: ~/.m2/repository
key: m2
- name: Set up JDK 25
uses: actions/setup-java@v4
with:
java-version: 25
distribution: temurin
- name: Set up MSYS2 (UCRT64)
uses: msys2/setup-msys2@v2
with:
msystem: UCRT64
update: false
install: >-
mingw-w64-ucrt-x86_64-gcc
mingw-w64-ucrt-x86_64-dlfcn
make
- name: Add MSYS2 UCRT64 to PATH
shell: msys2 {0}
run: echo "$(cygpath -w /ucrt64/bin)" >> $GITHUB_PATH
- name: Build
run: mvn --batch-mode --no-transfer-progress compile
- name: Upload Windows natives
uses: actions/upload-artifact@v4
with:
name: windows-natives
path: |
*/target/native/windows-*/
if-no-files-found: error

build-jar:
name: "Build: Packaging JARs"
runs-on: ubuntu-latest
needs: [build-macos-natives]
needs: [build-macos-natives, build-windows-natives]
steps:
- uses: actions/checkout@v4
- name: Cache M2 local repository
Expand All @@ -60,6 +97,11 @@ jobs:
with:
name: macos-natives
path: .
- name: Download Windows natives
uses: actions/download-artifact@v4
with:
name: windows-natives
path: .
- name: Build
run: mvn --batch-mode --no-transfer-progress package -DskipTests
- name: Log content of jar files
Expand Down Expand Up @@ -138,10 +180,46 @@ jobs:
- name: Test
run: mvn --batch-mode --no-transfer-progress --projects test-utils,blas,lapack,arpack test --fail-at-end -Dmaven.main.skip=true -Dmaven.antrun.skip=true

test-windows:
name: "Test: runs-on: windows-latest, jdk: ${{ matrix.jdk }}"
runs-on: windows-latest
needs: [build-jar]
strategy:
matrix:
jdk: [11, 17, 21, 25]
steps:
- uses: actions/checkout@v4
- name: Cache M2 local repository
uses: actions/cache@v4
with:
path: ~/.m2/repository
key: m2
- name: Set up MSYS2 (UCRT64) with OpenBLAS
uses: msys2/setup-msys2@v2
with:
msystem: UCRT64
update: false
install: mingw-w64-ucrt-x86_64-openblas
- name: Add MSYS2 ucrt64 bin to PATH
shell: msys2 {0}
run: echo "$(cygpath -w /ucrt64/bin)" >> $GITHUB_PATH
- name: Download target folder
uses: actions/download-artifact@v4
with:
name: target-dir
path: .
- name: Set up JDK ${{ matrix.jdk }}
uses: actions/setup-java@v4
with:
java-version: ${{ matrix.jdk }}
distribution: temurin
- name: Test
run: mvn --batch-mode --no-transfer-progress --projects test-utils,blas test --fail-at-end "-Dmaven.main.skip=true" "-Dmaven.antrun.skip=true"

release:
name: Release
runs-on: ubuntu-latest
needs: [build-jar, test-linux, test-macos]
needs: [build-jar, test-linux, test-macos, test-windows]
# Map step output to job output
outputs:
release_upload_url: ${{ steps.create_release.outputs.upload_url }}
Expand Down
15 changes: 12 additions & 3 deletions arpack/src/main/java/dev/ludovic/netlib/arpack/JNIARPACK.java
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Original file line number Diff line number Diff line change
Expand Up @@ -28,9 +28,11 @@
import java.io.IOException;
import java.io.InputStream;
import java.io.UncheckedIOException;
import java.nio.file.FileSystems;
import java.nio.file.Files;
import java.nio.file.Path;
import java.nio.file.StandardCopyOption;
import java.nio.file.attribute.FileAttribute;
import java.nio.file.attribute.PosixFilePermissions;

final class JNIARPACK extends AbstractARPACK implements NativeARPACK {
Expand All @@ -42,24 +44,31 @@ protected JNIARPACK() {
if (osName == null || osName.isEmpty()) {
throw new RuntimeException("Unable to load native implementation");
}
boolean isWindows = osName.startsWith("Windows");
if (osName.equals("Mac OS X")) {
osName = "macos";
} else if (isWindows) {
osName = "windows";
}
String osArch = System.getProperty("os.arch");
if (osArch == null || osArch.isEmpty()) {
throw new RuntimeException("Unable to load native implementation");
}

String libPrefix = "libnetlibarpackjni";
String libExtension = osName.equals("macos") ? ".dylib" : ".so";
String libExtension = osName.equals("macos") ? ".dylib" : isWindows ? ".dll" : ".so";
String libName = libPrefix + libExtension;

FileAttribute<?>[] attrs = FileSystems.getDefault()
.supportedFileAttributeViews().contains("posix")
? new FileAttribute<?>[]{ PosixFilePermissions.asFileAttribute(PosixFilePermissions.fromString("rwxr-x---")) }
: new FileAttribute<?>[0];

Path temp;
try (InputStream resource = this.getClass().getClassLoader().getResourceAsStream(
String.format("resources/native/%s-%s/%s", osName, osArch, libName))) {
assert resource != null;
Files.copy(resource, temp = Files.createTempFile(libPrefix, libExtension,
PosixFilePermissions.asFileAttribute(PosixFilePermissions.fromString("rwxr-x---"))),
Files.copy(resource, temp = Files.createTempFile(libPrefix, libExtension, attrs),
StandardCopyOption.REPLACE_EXISTING);
temp.toFile().deleteOnExit();
} catch (IOException e) {
Expand Down
14 changes: 13 additions & 1 deletion arpack/src/main/native/jni.c
100644 → 100755
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Original file line number Diff line number Diff line change
Expand Up @@ -26,7 +26,17 @@
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <dlfcn.h>
#ifdef _WIN32
# include <windows.h>
# define dlopen(name, flags) ((void*)LoadLibraryA(name))
# define dlsym(h, name) ((void*)GetProcAddress((HMODULE)(h), name))
# define dlclose(h) FreeLibrary((HMODULE)(h))
# define dlerror() "LoadLibrary failed"
# define RTLD_LAZY 0
# define RTLD_LOCAL 0
#else
# include <dlfcn.h>
#endif

#include "dev_ludovic_netlib_arpack_JNIARPACK.h"

Expand Down Expand Up @@ -2326,6 +2336,8 @@ jint JNI_OnLoad(JavaVM *vm, UNUSED void *reserved) {
#else
#error Unsupported darwin architecture
#endif
#elif defined(_WIN32)
static const char *default_native_lib = "libarpack.dll";
#else
static const char *default_native_lib = "libarpack.so.2";
#endif
Expand Down
15 changes: 11 additions & 4 deletions blas/src/main/java/dev/ludovic/netlib/blas/JNIBLAS.java
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Original file line number Diff line number Diff line change
Expand Up @@ -28,9 +28,11 @@
import java.io.IOException;
import java.io.InputStream;
import java.io.UncheckedIOException;
import java.nio.file.FileSystems;
import java.nio.file.Files;
import java.nio.file.Path;
import java.nio.file.StandardCopyOption;
import java.nio.file.attribute.FileAttribute;
import java.nio.file.attribute.PosixFilePermissions;
import java.util.logging.Logger;

Expand All @@ -45,27 +47,32 @@ protected JNIBLAS() {
if (osName == null || osName.isEmpty()) {
throw new RuntimeException("Unable to load native implementation");
}
boolean isWindows = osName.startsWith("Windows");
if (osName.equals("Mac OS X")) {
osName = "macos";
} else if (isWindows) {
osName = "windows";
}
String osArch = System.getProperty("os.arch");
if (osArch == null || osArch.isEmpty()) {
throw new RuntimeException("Unable to load native implementation");
}

String libPrefix = "libnetlibblasjni";
String libExtension = osName.equals("macos") ? ".dylib" : ".so";
String libExtension = osName.equals("macos") ? ".dylib" : isWindows ? ".dll" : ".so";
String libName = libPrefix + libExtension;

log.fine(String.format("Trying to load native implementation from resource: resources/native/%s-%s/%s", osName, osArch, libName));
FileAttribute<?>[] attrs = FileSystems.getDefault()
.supportedFileAttributeViews().contains("posix")
? new FileAttribute<?>[]{ PosixFilePermissions.asFileAttribute(PosixFilePermissions.fromString("rwxr-x---")) }
: new FileAttribute<?>[0];

Path temp;
try (InputStream resource = this.getClass().getClassLoader().getResourceAsStream(
String.format("resources/native/%s-%s/%s", osName, osArch, libName))) {
assert resource != null;
Files.copy(resource, temp = Files.createTempFile(libPrefix, libExtension,
PosixFilePermissions.asFileAttribute(PosixFilePermissions.fromString("rwxr-x---"))),
StandardCopyOption.REPLACE_EXISTING);
Files.copy(resource, temp = Files.createTempFile(libPrefix, libExtension, attrs), StandardCopyOption.REPLACE_EXISTING);
temp.toFile().deleteOnExit();
} catch (IOException e) {
throw new UncheckedIOException("Unable to load native implementation", e);
Expand Down
14 changes: 13 additions & 1 deletion blas/src/main/native/jni.c
100644 → 100755
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Original file line number Diff line number Diff line change
Expand Up @@ -26,7 +26,17 @@
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <dlfcn.h>
#ifdef _WIN32
# include <windows.h>
# define dlopen(name, flags) ((void*)LoadLibraryA(name))
# define dlsym(h, name) ((void*)GetProcAddress((HMODULE)(h), name))
# define dlclose(h) FreeLibrary((HMODULE)(h))
# define dlerror() "LoadLibrary failed"
# define RTLD_LAZY 0
# define RTLD_LOCAL 0
#else
# include <dlfcn.h>
#endif

#include "dev_ludovic_netlib_blas_JNIBLAS.h"

Expand Down Expand Up @@ -2206,6 +2216,8 @@ jint JNI_OnLoad(JavaVM *vm, UNUSED void *reserved) {
jstring property_nativeLib;
#ifdef __APPLE__
static const char *default_native_lib = "/System/Library/Frameworks/Accelerate.framework/Accelerate";
#elif defined(_WIN32)
static const char *default_native_lib = "libopenblas.dll";
#else
static const char *default_native_lib = "libblas.so.3";
#endif
Expand Down
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