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Re: [RFC v6 09/23] RISC-V: Add support for 32-bit vDSO calls

From: Alistair Francis <alistair23 at gmail dot com>
To: Arnd Bergmann <arnd at arndb dot de>
Cc: Alistair Francis <alistair dot francis at wdc dot com>, GNU C Library <libc-alpha at sourceware dot org>, Adhemerval Zanella <adhemerval dot zanella at linaro dot org>, Florian Weimer <fweimer at redhat dot com>, Joseph Myers <joseph at codesourcery dot com>, Palmer Dabbelt <palmerdabbelt at google dot com>, "Maciej W. Rozycki" <macro at wdc dot com>, Zong Li <zongbox at gmail dot com>
Date: Tue, 14 Jan 2020 17:23:12 +1000
Subject: Re: [RFC v6 09/23] RISC-V: Add support for 32-bit vDSO calls
References: <cover.1578824547.git.alistair.francis@wdc.com> <29811415ee8fa8e8e4cb379903c2199b5df54f9b.1578824547.git.alistair.francis@wdc.com> <CAK8P3a2PDzRpqspAAO2syhBz5X9UC-anu1kHhkb5Yz5dHHsT7w@mail.gmail.com>

On Mon, Jan 13, 2020 at 11:33 PM Arnd Bergmann <arnd@arndb.de> wrote:
>
> On Sun, Jan 12, 2020 at 11:40 AM Alistair Francis
> <alistair.francis@wdc.com> wrote:
> > +# if __riscv_xlen == 32
> > +#  define VDSO_NAME  "LINUX_5.4"
> > +#  define VDSO_HASH  61765876
>
> > +#  define HAVE_CLOCK_GETTIME64_VSYSCALL        "__vdso_clock_gettime64"
> > +#  define HAVE_GETCPU_VSYSCALL         "__vdso_getcpu"
>
> Mainline linux doesn't have these yet on risc-v. I assume you have
> patches to add them?

No... I don't. I just assumed these were supported. I will drop this.

Alistair

>
>       Arnd

References:
- [RFC v6 00/23] RISC-V glibc port for the 32-bit
  - From: Alistair Francis
- [RFC v6 09/23] RISC-V: Add support for 32-bit vDSO calls
  - From: Alistair Francis
- Re: [RFC v6 09/23] RISC-V: Add support for 32-bit vDSO calls
  - From: Arnd Bergmann

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