Hi, This series adds a proper VDSO to the kernel on MIPS. The first commit adds the basic VDSO, replacing the current signal return trampoline page. The following commits add user implementations of gettimeofday() and clock_gettime() which can make use of either the CP0 count or the GIC user-mode visible section. A tree with these changes can be found at [1]. It's based on v4.3-rc3 Use of the time functions relies on glibc modifications. A patch for this can be found in my repository at [2] and I will soon post it to the glibc mailing list. [1]: http://git.linux-mips.org/cgit/mchandras/linux.git/log/?h=4.3-vdso [2]: https://github.com/hwoarang/glibc/tree/2.22-vdso Alex Smith (3): MIPS: Initial implementation of a VDSO irqchip: irq-mips-gic: Provide function to map GIC user section MIPS: VDSO: Add implementations of gettimeofday() and clock_gettime() arch/mips/Kbuild | 1 + arch/mips/Kconfig | 5 + arch/mips/include/asm/abi.h | 5 +- arch/mips/include/asm/clocksource.h | 29 ++++ arch/mips/include/asm/elf.h | 7 + arch/mips/include/asm/processor.h | 8 +- arch/mips/include/asm/vdso.h | 139 +++++++++++++++-- arch/mips/include/uapi/asm/Kbuild | 2 +- arch/mips/include/uapi/asm/auxvec.h | 17 ++ arch/mips/kernel/csrc-r4k.c | 44 ++++++ arch/mips/kernel/signal.c | 12 +- arch/mips/kernel/signal32.c | 7 +- arch/mips/kernel/signal_n32.c | 5 +- arch/mips/kernel/vdso.c | 198 ++++++++++++++--------- arch/mips/vdso/.gitignore | 4 + arch/mips/vdso/Makefile | 142 +++++++++++++++++ arch/mips/vdso/elf.S | 68 ++++++++ arch/mips/vdso/genvdso.c | 294 +++++++++++++++++++++++++++++++++++ arch/mips/vdso/genvdso.h | 188 ++++++++++++++++++++++ arch/mips/vdso/gettimeofday.c | 232 +++++++++++++++++++++++++++ arch/mips/vdso/sigreturn.S | 49 ++++++ arch/mips/vdso/vdso.h | 84 ++++++++++ arch/mips/vdso/vdso.lds.S | 103 ++++++++++++ drivers/clocksource/mips-gic-timer.c | 7 +- drivers/irqchip/irq-mips-gic.c | 27 +++- include/linux/irqchip/mips-gic.h | 24 ++- 26 files changed, 1572 insertions(+), 129 deletions(-) create mode 100644 arch/mips/include/asm/clocksource.h create mode 100644 arch/mips/include/uapi/asm/auxvec.h create mode 100644 arch/mips/vdso/.gitignore create mode 100644 arch/mips/vdso/Makefile create mode 100644 arch/mips/vdso/elf.S create mode 100644 arch/mips/vdso/genvdso.c create mode 100644 arch/mips/vdso/genvdso.h create mode 100644 arch/mips/vdso/gettimeofday.c create mode 100644 arch/mips/vdso/sigreturn.S create mode 100644 arch/mips/vdso/vdso.h create mode 100644 arch/mips/vdso/vdso.lds.S -- 2.5.3
