The following 23 patches are rebased and resent, and represent a rewrite of the arm and arm64 vDSO into C, adding support for arch32 (32-bit user space hosted 64-bit kernels) and into a common library that other (arm, or non-arm) architectures may utilize.
[PATCH v5 01/12] arm: vdso: rename vdso_datapage variables [PATCH v5 02/12] arm: vdso: add include file defining __get_datapage() [PATCH v5 03/12] arm: vdso: inline assembler operations to compiler.h [PATCH v5 04/12] arm: vdso: do calculations outside reader loops [PATCH v6 05/12] arm: vdso: Add support for CLOCK_MONOTONIC_RAW [PATCH v5 06/12] arm: vdso: add support for clock_getres [PATCH v5 07/12] arm: vdso: disable profiling [PATCH v5 08/12] arm: vdso: Add ARCH_CLOCK_FIXED_MASK [PATCH v5 09/12] arm: vdso: move vgettimeofday.c to lib/vdso/ [PATCH v5 10/12] arm64: vdso: replace gettimeofday.S with global vgettimeofday.C [PATCH v6 11/12] lib: vdso: Add support for CLOCK_BOOTTIME [PATCH v5 12/12] lib: vdso: do not expose gettimeofday, if no arch supported timer [PATCH] lib: vdso: add support for time [PATCH v2 1/3] arm64: compat: Split the sigreturn trampolines and kuser helpers (C sources) [PATCH v2 2/3] arm64: compat: Split the sigreturn trampolines and kuser helpers (assembler sources) [PATCH v2 3/3] arm64: compat: Add CONFIG_KUSER_HELPERS [PATCH] arm64: compat: Expose offset to registers in sigframes [PATCH 1/6] arm64: compat: Use vDSO sigreturn trampolines if available [PATCH 2/6] arm64: elf: Set AT_SYSINFO_EHDR in compat processes [PATCH 3/6] arm64: Refactor vDSO init/setup [PATCH v2 4/6] arm64: compat: Add a 32-bit vDSO [PATCH 5/6] arm64: compat: 32-bit vDSO setup [PATCH 6/6] arm64: Wire up and expose the new compat vDSO This patch series' above has been applied to the latest Pixel phones and resulted in a 0.4% battery improvement. Signed-off-by: Mark Salyzyn <[email protected]> Cc: James Morse <[email protected]> Cc: Russell King <[email protected]> Cc: Catalin Marinas <[email protected]> Cc: Will Deacon <[email protected]> Cc: Andy Lutomirski <[email protected]> Cc: Dmitry Safonov <[email protected]> Cc: John Stultz <[email protected]> Cc: Mark Rutland <[email protected]> Cc: Laura Abbott <[email protected]> Cc: Kees Cook <[email protected]> Cc: Ard Biesheuvel <[email protected]> Cc: Andy Gross <[email protected]> Cc: Kevin Brodsky <[email protected]> Cc: Andrew Pinski <[email protected]> Cc: Thomas Gleixner <[email protected]> Cc: [email protected] Cc: [email protected] Cc: Jeremy Linton <[email protected]>
