On Wed, 12 Jun 2024 08:02:00 GMT, Matthias Baesken <[email protected]> wrote:
> When running the jdk jtreg tests with ubsan enabled binaries on Linux x86_64, > I get the warning below. > This shows up in a couple of tests, for example > java/awt/image/mlib/MlibOpsTest.jtr > java/awt/image/Raster/TestChildRasterOp.jtr > > src/java.desktop/share/native/libmlib_image/mlib_ImageScanPoly.c:292:43: > runtime error: division by zero > #0 0x7fe6d958b862 in mlib_AffineEdges > src/java.desktop/share/native/libmlib_image/mlib_ImageScanPoly.c:292 > #1 0x7fe6d958bb5d in mlib_ImageAffine_alltypes > src/java.desktop/share/native/libmlib_image/mlib_ImageAffine.c:179 > #2 0x7fe6d9e9b398 in Java_sun_awt_image_ImagingLib_transformBI > src/java.desktop/share/native/libawt/awt/medialib/awt_ImagingLib.c:922 > #3 0x7fe76f00ae7b (<unknown module>) > > The issue has been discussed with Phil Race (see > https://bugs.openjdk.org/browse/JDK-8333277) and the division by zero has > been already handled in the coding. > However we can avoid it (and make ubsan happy) and in this case also do a > few operations less. This pull request has now been integrated. Changeset: 57b64814 Author: Matthias Baesken <[email protected]> URL: https://git.openjdk.org/jdk/commit/57b6481449612529615484a313d8b85ccf23e287 Stats: 7 lines in 1 file changed: 4 ins; 0 del; 3 mod 8333277: ubsan: mlib_ImageScanPoly.c:292:43: runtime error: division by zero Reviewed-by: prr ------------- PR: https://git.openjdk.org/jdk/pull/19674
