package/uclibc: define RLIMIT_RTTIME

RLIMIT_RTTIME is needed to build qemu 7.0.0 with
Linux user-land emulation support [1].

Disabling uClibc for Qemu user-land emulation would requires
disabling uClibc support for gobject-introspection and nodejs
along with reverse dependencies.

[1] https://git.qemu.org/?p=qemu.git;a=commitdiff;h=244fd08323088db73590ff2317dfe86f810b51d7

Fixes:
http://autobuild.buildroot.net/results/1849f6d05728624fd293a015812b8d0f9d192e62

Signed-off-by: Romain Naour <romain.naour@gmail.com>
Cc: Waldemar Brodkorb <wbx@openadk.org>
---
 ...ne-RLIMIT_RTTIME-bump-RLIMIT_NLIMITS.patch | 126 ++++++++++++++++++
 1 file changed, 126 insertions(+)
 create mode 100644 package/uclibc/0001-define-RLIMIT_RTTIME-bump-RLIMIT_NLIMITS.patch

Hello,

Le 17/05/2022 à 21:47, Romain Naour a écrit :
> RLIMIT_RTTIME is needed to build qemu 7.0.0 with
> Linux user-land emulation support [1].
> 
> Disabling uClibc for Qemu user-land emulation would requires
> disabling uClibc support for gobject-introspection and nodejs
> along with reverse dependencies.

This patch is superseeded by uClibc-ng version bump to 1.0.41 since it's
included in this release:

http://patchwork.ozlabs.org/project/buildroot/patch/Yoe28imNyGUIMxBi@waldemar-brodkorb.de/

Best regards,
Romain


> 
> [1] https://git.qemu.org/?p=qemu.git;a=commitdiff;h=244fd08323088db73590ff2317dfe86f810b51d7
> 
> Fixes:
> http://autobuild.buildroot.net/results/1849f6d05728624fd293a015812b8d0f9d192e62
> 
> Signed-off-by: Romain Naour <romain.naour@gmail.com>
> Cc: Waldemar Brodkorb <wbx@openadk.org>
> ---
>  ...ne-RLIMIT_RTTIME-bump-RLIMIT_NLIMITS.patch | 126 ++++++++++++++++++
>  1 file changed, 126 insertions(+)
>  create mode 100644 package/uclibc/0001-define-RLIMIT_RTTIME-bump-RLIMIT_NLIMITS.patch
> 
> diff --git a/package/uclibc/0001-define-RLIMIT_RTTIME-bump-RLIMIT_NLIMITS.patch b/package/uclibc/0001-define-RLIMIT_RTTIME-bump-RLIMIT_NLIMITS.patch
> new file mode 100644
> index 0000000000..7d3a047af3
> --- /dev/null
> +++ b/package/uclibc/0001-define-RLIMIT_RTTIME-bump-RLIMIT_NLIMITS.patch
> @@ -0,0 +1,126 @@
> +From b168450de521198537d59c017d85270184e5da08 Mon Sep 17 00:00:00 2001
> +From: Romain Naour <romain.naour@gmail.com>
> +Date: Mon, 16 May 2022 23:13:05 +0200
> +Subject: [PATCH] define RLIMIT_RTTIME, bump RLIMIT_NLIMITS
> +
> +This macro exists since Linux 2.6.25 [1] and is defined in glibc
> +since 2.14 [2] for sparc and most supported architectures.
> +
> +RLIMIT_RTTIME has been added later for mips [3] and alpha [4].
> +
> +For example, RLIMIT_RTTIME is needed to build qemu 7.0.0 with
> +Linux user-land emulation support [5].
> +
> +[1] https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=78f2c7db6068fd6ef75b8c120f04a388848eacb5
> +[2] https://sourceware.org/git/?p=glibc.git;a=commitdiff;h=67f86a251e0d36107fe28999281d46e76941c7b9
> +[3] https://sourceware.org/git/?p=glibc.git;a=commitdiff;h=8969f4df1a526aa60dd0bc1c4736cf02104d4a05
> +[4] https://sourceware.org/git/?p=glibc.git;a=commitdiff;h=53c2cb7641bd866398156625ef672bbd2d78a0d8
> +[5] https://git.qemu.org/?p=qemu.git;a=commitdiff;h=244fd08323088db73590ff2317dfe86f810b51d7
> +
> +Signed-off-by: Romain Naour <romain.naour@gmail.com>
> +---
> + libc/sysdeps/linux/alpha/bits/resource.h   | 8 +++++++-
> + libc/sysdeps/linux/common/bits/resource.h  | 8 +++++++-
> + libc/sysdeps/linux/mips/bits/resource.h    | 8 +++++++-
> + libc/sysdeps/linux/sparc/bits/resource.h   | 8 +++++++-
> + libc/sysdeps/linux/sparc64/bits/resource.h | 8 +++++++-
> + 5 files changed, 35 insertions(+), 5 deletions(-)
> +
> +diff --git a/libc/sysdeps/linux/alpha/bits/resource.h b/libc/sysdeps/linux/alpha/bits/resource.h
> +index 74f4eed69..78b790d86 100644
> +--- a/libc/sysdeps/linux/alpha/bits/resource.h
> ++++ b/libc/sysdeps/linux/alpha/bits/resource.h
> +@@ -99,7 +99,13 @@ enum __rlimit_resource
> +   __RLIMIT_RTPRIO = 14,
> + #define RLIMIT_RTPRIO __RLIMIT_RTPRIO
> + 
> +-  __RLIMIT_NLIMITS = 15,
> ++  /* Maximum CPU time in µs that a process scheduled under a real-time
> ++     scheduling policy may consume without making a blocking system
> ++     call before being forcibly descheduled.  */
> ++  __RLIMIT_RTTIME = 15,
> ++#define RLIMIT_RTTIME __RLIMIT_RTTIME
> ++
> ++  __RLIMIT_NLIMITS = 16,
> +   __RLIM_NLIMITS = __RLIMIT_NLIMITS
> + #define RLIMIT_NLIMITS __RLIMIT_NLIMITS
> + #define RLIM_NLIMITS __RLIM_NLIMITS
> +diff --git a/libc/sysdeps/linux/common/bits/resource.h b/libc/sysdeps/linux/common/bits/resource.h
> +index df0ba56d9..92b67eb23 100644
> +--- a/libc/sysdeps/linux/common/bits/resource.h
> ++++ b/libc/sysdeps/linux/common/bits/resource.h
> +@@ -99,7 +99,13 @@ enum __rlimit_resource
> +   __RLIMIT_RTPRIO = 14,
> + #define RLIMIT_RTPRIO __RLIMIT_RTPRIO
> + 
> +-  __RLIMIT_NLIMITS = 15,
> ++  /* Maximum CPU time in µs that a process scheduled under a real-time
> ++     scheduling policy may consume without making a blocking system
> ++     call before being forcibly descheduled.  */
> ++  __RLIMIT_RTTIME = 15,
> ++#define RLIMIT_RTTIME __RLIMIT_RTTIME
> ++
> ++  __RLIMIT_NLIMITS = 16,
> +   __RLIM_NLIMITS = __RLIMIT_NLIMITS
> + #define RLIMIT_NLIMITS __RLIMIT_NLIMITS
> + #define RLIM_NLIMITS __RLIM_NLIMITS
> +diff --git a/libc/sysdeps/linux/mips/bits/resource.h b/libc/sysdeps/linux/mips/bits/resource.h
> +index b204aefd6..48a97f62e 100644
> +--- a/libc/sysdeps/linux/mips/bits/resource.h
> ++++ b/libc/sysdeps/linux/mips/bits/resource.h
> +@@ -99,7 +99,13 @@ enum __rlimit_resource
> +   __RLIMIT_RTPRIO = 14,
> + #define RLIMIT_RTPRIO __RLIMIT_RTPRIO
> + 
> +-  __RLIMIT_NLIMITS = 15,
> ++  /* Maximum CPU time in µs that a process scheduled under a real-time
> ++     scheduling policy may consume without making a blocking system
> ++     call before being forcibly descheduled.  */
> ++  __RLIMIT_RTTIME = 15,
> ++#define RLIMIT_RTTIME __RLIMIT_RTTIME
> ++
> ++  __RLIMIT_NLIMITS = 16,
> +   __RLIM_NLIMITS = __RLIMIT_NLIMITS
> + #define RLIMIT_NLIMITS __RLIMIT_NLIMITS
> + #define RLIM_NLIMITS __RLIM_NLIMITS
> +diff --git a/libc/sysdeps/linux/sparc/bits/resource.h b/libc/sysdeps/linux/sparc/bits/resource.h
> +index 1005aeced..9bff26d00 100644
> +--- a/libc/sysdeps/linux/sparc/bits/resource.h
> ++++ b/libc/sysdeps/linux/sparc/bits/resource.h
> +@@ -98,7 +98,13 @@ enum __rlimit_resource
> +   __RLIMIT_RTPRIO = 14,
> + #define RLIMIT_RTPRIO __RLIMIT_RTPRIO
> + 
> +-  __RLIMIT_NLIMITS = 15,
> ++  /* Maximum CPU time in µs that a process scheduled under a real-time
> ++     scheduling policy may consume without making a blocking system
> ++     call before being forcibly descheduled.  */
> ++  __RLIMIT_RTTIME = 15,
> ++#define RLIMIT_RTTIME __RLIMIT_RTTIME
> ++
> ++  __RLIMIT_NLIMITS = 16,
> +   __RLIM_NLIMITS = __RLIMIT_NLIMITS
> + #define RLIMIT_NLIMITS __RLIMIT_NLIMITS
> + #define RLIM_NLIMITS __RLIM_NLIMITS
> +diff --git a/libc/sysdeps/linux/sparc64/bits/resource.h b/libc/sysdeps/linux/sparc64/bits/resource.h
> +index 366e5c2d9..255fb9734 100644
> +--- a/libc/sysdeps/linux/sparc64/bits/resource.h
> ++++ b/libc/sysdeps/linux/sparc64/bits/resource.h
> +@@ -98,7 +98,13 @@ enum __rlimit_resource
> +   __RLIMIT_RTPRIO = 14,
> + #define RLIMIT_RTPRIO __RLIMIT_RTPRIO
> + 
> +-  __RLIMIT_NLIMITS = 15,
> ++  /* Maximum CPU time in µs that a process scheduled under a real-time
> ++     scheduling policy may consume without making a blocking system
> ++     call before being forcibly descheduled.  */
> ++  __RLIMIT_RTTIME = 15,
> ++#define RLIMIT_RTTIME __RLIMIT_RTTIME
> ++
> ++  __RLIMIT_NLIMITS = 16,
> +   __RLIM_NLIMITS = __RLIMIT_NLIMITS
> + #define RLIMIT_NLIMITS __RLIMIT_NLIMITS
> + #define RLIM_NLIMITS __RLIM_NLIMITS
> +-- 
> +2.35.3
> +