kernel.git/tools/testing/selftests/vDSO/vgetrandom-chacha.S, branch master

Merge tag 'x86_entry_for_7.0-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

2026-02-11T03:34:26Z

Pull x86 entry code updates from Dave Hansen: "This is entirely composed of a set of long overdue VDSO cleanups. They makes the VDSO build much more logical and zap quite a bit of old cruft. It also results in a coveted net-code-removal diffstat" * tag 'x86_entry_for_7.0-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/entry/vdso: Add vdso2c to .gitignore x86/entry/vdso32: Omit '.cfi_offset eflags' for LLVM < 16 MAINTAINERS: Adjust vdso file entry in INTEL SGX x86/entry/vdso/selftest: Update location of vgetrandom-chacha.S x86/entry/vdso: Fix filtering of vdso compiler flags x86/entry/vdso: Update the object paths for "make vdso_install" x86/entry/vdso32: When using int $0x80, use it directly x86/cpufeature: Replace X86_FEATURE_SYSENTER32 with X86_FEATURE_SYSFAST32 x86/vdso: Abstract out vdso system call internals x86/entry/vdso: Include GNU_PROPERTY and GNU_STACK PHDRs x86/entry/vdso32: Remove open-coded DWARF in sigreturn.S x86/entry/vdso32: Remove SYSCALL_ENTER_KERNEL macro in sigreturn.S x86/entry/vdso32: Don't rely on int80_landing_pad for adjusting ip x86/entry/vdso: Refactor the vdso build x86/entry/vdso: Move vdso2c to arch/x86/tools x86/entry/vdso: Rename vdso_image_* to vdso*_image

selftests: vDSO: getrandom: Fix path to s390 chacha implementation

2026-01-17T14:51:28Z

The s390 vDSO source directory was recently moved, but this reference was not updated. Fixes: c0087d807ae8 ("s390/vdso: Rename vdso64 to vdso") Signed-off-by: Thomas Weißschuh Acked-by: Heiko Carstens Signed-off-by: Heiko Carstens

x86/entry/vdso/selftest: Update location of vgetrandom-chacha.S

2026-01-16T21:25:44Z

As part of the vdso build restructuring, vgetrandom-chacha.S moved into the vdso/vdso64 subdirectory. Update the selftest #include to match. Closes: https://lore.kernel.org/oe-lkp/202601161608.5cd5af9a-lkp@intel.com Fixes: 693c819fedcd ("x86/entry/vdso: Refactor the vdso build") Reported-by: kernel test robot Signed-off-by: H. Peter Anvin (Intel) Signed-off-by: Dave Hansen Link: https://patch.msgid.link/20260116204057.386268-4-hpa@zytor.com

RISC-V: vDSO: Wire up getrandom() vDSO implementation

2025-06-05T21:03:09Z

Hook up the generic vDSO implementation to the generic vDSO getrandom implementation by providing the required __arch_chacha20_blocks_nostack and getrandom_syscall implementations. Also wire up the selftests. The benchmark result: vdso: 25000000 times in 2.466341333 seconds libc: 25000000 times in 41.447720005 seconds syscall: 25000000 times in 41.043926672 seconds vdso: 25000000 x 256 times in 162.286219353 seconds libc: 25000000 x 256 times in 2953.855018685 seconds syscall: 25000000 x 256 times in 2796.268546000 seconds [ alex: - Fix dynamic relocation - Squash Nathan's fix https://lore.kernel.org/all/20250423-riscv-fix-compat_vdso-lld-v2-1-b7bbbc244501@kernel.org/ - Add comment from Loongarch ] Signed-off-by: Xi Ruoyao Link: https://lore.kernel.org/r/20250411024600.16045-1-xry111@xry111.site Tested-by: Alexandre Ghiti Signed-off-by: Alexandre Ghiti Signed-off-by: Palmer Dabbelt

selftests: vDSO: unconditionally build chacha test

2024-10-08T21:21:29Z

Rather than using symlinks to find the vgetrandom-chacha.S file for each arch, store this in a file that uses the compiler to determine architecture, and then make use of weak symbols to skip the test on architectures that don't provide the code. Signed-off-by: Jason A. Donenfeld Signed-off-by: Shuah Khan