v0.12.0 Epimetheus

We are proud to announce the latest version of Unikraft, v0.12.0 (Epimetheus)! This release comes with a bag of new exciting features and more stability to the existing ones. Here is the full updates list:

🚀 New Features

• Expose HANDLED_CONT return value in include/event (#738) by @marcrittinghaus
• Register mkdirat to syscall shim in lib/vfscore (#732) by @eduardvintila
• Fault-safe memory access in lib/uknofault (#725) by @marcrittinghaus
• Boot code refactoring (#722) by @marcrittinghaus
• Make TCB overlap configurable in arch/libcontext (#720) by @eduardvintila
• Add _SC_PHYS_PAGES and _SC_AVPHYS_PAGES to sysconf in lib/posix-sysinfo (#719) by @osmten
• Add setattr function for 9pfs in lib/9pfs (#710) by @StefanJum
• Update rust version to latest nightly in lang/rust (#709) by @fabianpatras
• Add comments to vfs.h file in lib/vfscore (#707) by @RaduNichita
• Add README.md file in lib/ramfs (#705) by @DeliaPavel
• Add comments to ramfs.h file in lib/ramfs (#704) by @DeliaPavel
• Update documentation of ukarch_random (#703) by @michpappas
• Use ukarch_random_seed to seed MTE keys in arch/arm64 (#702) by @michpappas
• Add IRQ events in plat/* (#699) by @mschlumpp
• Implement ukarch_random in arch/x86_64 (#695) by @michpappas
• Handle error code returns from event handlers in include/event (#691) by @mschlumpp
• Use correct variable name for sect-strip.py tool in lib/ukdebug (#690) by @mschlumpp
• Use the ukarch_random API to generate PAuth keys and enable Pointer Authentication on KVM (#686) by @michpappas
• 9p2000.L support in lib/{uk9p,9pfs} (#671) by @dinhngtu
• Implement subclass matching in plat/common/pci (#624) by @mschlumpp
• Add additional flags for compatibility in lib/vfscore (#623) by @mschlumpp
• Expose rmdir/rename from nolibc in lib/nolibc (#622) by @mschlumpp
• Add lib/ukvmem and lib/posix-mmap (#603) by @marcrittinghaus
• Add README.md file in lib/uktest (#555) by @StefanJum
• Upgrade musl to latest version (1.2.3) (#34) by @eduardvintila
• Upgrade libsqlite version (#4) by @Starnox
• Add configuration file for textlint in .github (#178) by @razvand
• Add make-based build workflow (#177) by @StefanJum
• Add CONTRIBUTING.md file referencing the website (#174) by @StefanJum
• Add instructions on contributing to documentation (#171) by @StefanJum
• Split coding style content (#162) by @StefanJum
• Port the informations on the Makefile.uk, exportsyms.uk and extra.ld files from the Unikraft old documentation (#126) by @StefanJum

🐛 Bug Fixes & Improvements

• Fix typecast for PT_BUFP in uk_prsyscall for lib/syscall_shim (#750) by @skuenzer
• Fix lstat() infinite loop in lib/vfscore (#711) by @mariasfiraiala
• Fix gcc-ism for clang compilation in plat/pci_ecam.c (#701) by @mariasfiraiala
• Comment out unused sysinfo buffer in lib/posix-info (#673) by @razvand
• Fix a memory leak in lib/ukallocbbuddy (#689) by @noureddine-taleb
• Fix race condition during context switch in lib/uksched (#694) by @eduardvintila
• Fix segments in ELF output images in build (#698) by @mschlumpp
• Align the stack to 16 bytes in arch/x86_64 (#684) by @mschlumpp
• Update ukrust to work alongside Cargo in lib/ukrust (#680) by @vladandrew
• Use Linux-compatible stat structure in lib/nolibc (#675) by @razvand
• virtio-net fixes (#669) by @dinhngtu
• Flip argument names of VOP_SYMLINK in lib/vfscore (#629) by @mschlumpp
• Prefer local include dirs in support/build (#625) by @mschlumpp
• Ensure time monotonicity for tscclock in plat/kvm (#617) by @mschlumpp
• 16-byte align syscall stack in plat/common/x86 (#748) by @marcrittinghaus
• Align allocated stacks to arch requirement in lib/uksched (#747) by @skuenzer
• Fix for .tdata warning (#746) by @marcrittinghaus
• Cast initrd vbase to (void *) in lib/vfscore (#744) by @skuenzer
• Fix initrd0 macro in include/uk/plat (#742) by @marcrittinghaus
• Fix cmdline parsing in plat/kvm/x86 (#741) by @marcrittinghaus
• Fix various warnings (#739) by @marcrittinghaus
• Fix dependency for nanosleep() in app-helloworld (#13) by @michpappas
• Adapt forced polling mode to uknetdev flag rename (#30) by @mschlumpp
• Adapt memory region usage in patch (#7) by @marcrittinghaus
• Remove hash templates for pthread_t (#26) by @dinhngtu
• Move _XOPEN_SOURCE define to library CFLAGS (#33) by @mschlumpp
• Remove outdated vendored features.h (#32) by @mschlumpp
• Fix typos in the en/docs/contributing (#179) by @RaduNichita
• Fix kraft via pip installation step (#176) by @mkroening
• Ignore md104 rule when inside shortcodes in github/linter (#173) by @StefanJum
• github/linter: Remove .png keyword in github/linter (#172) by @StefanJum

A big thank you also to all those who helped in the review process: @gabrielmocanu, @nderjung, @craciunoiuc, @eduardvintila, @marcrittinghaus, @mariasfiraiala, @razvand, @razvanvirtan, @kubanrob, @mogasergiu, @skuenzer, @StefanJum, @vladandrew, @RaduNichita, @fabianpatras, @andraprs, @michpappas, @maniatro111, @DeliaPavel and @mschlumpp.

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For more information, check out the accompanying blog post or view the full changelog.