[Buildroot] [PATCH] package/uclibc: add patch for libucontext usage

[Buildroot] [PATCH] package/uclibc: add patch for libucontext usage

[Waldemar Brodkorb]

*ucontext functions are only implemented for a subset of
uClibc supported architectures. To allow the external library
libucontext to be used this small patch is required.
Tested for riscv64.

Signed-off-by: Waldemar Brodkorb <wbx@openadk.org>
---
 .../0001-allow-to-use-sys-ucontext.h.patch    | 35 +++++++++++++++++++
 1 file changed, 35 insertions(+)
 create mode 100644 package/uclibc/0001-allow-to-use-sys-ucontext.h.patch

diff --git a/package/uclibc/0001-allow-to-use-sys-ucontext.h.patch b/package/uclibc/0001-allow-to-use-sys-ucontext.h.patch
new file mode 100644
index 0000000000..b6bd5602d9
--- /dev/null
+++ b/package/uclibc/0001-allow-to-use-sys-ucontext.h.patch
@@ -0,0 +1,35 @@
+From 903da45dde43836e35a295226c5b1efccd413c08 Mon Sep 17 00:00:00 2001
+From: Waldemar Brodkorb <wbx@openadk.org>
+Date: Wed, 17 Jul 2024 15:41:40 +0200
+Subject: [PATCH] allow to use <sys/ucontext.h>
+
+For architectures without ucontext implementation it is possible
+to use libucontext with this small adaptation.
+
+Signed-off-by: Waldemar Brodkorb <wbx@openadk.org>
+Upstream: https://mailman.openadk.org/mailman3/hyperkitty/list/devel@uclibc-ng.org/thread/MZCPGG56TL7SVOZY2L3AGHLREJ76BYZE/
+---
+ include/ucontext.h | 4 ++--
+ 1 file changed, 2 insertions(+), 2 deletions(-)
+
+diff --git a/include/ucontext.h b/include/ucontext.h
+index 4ce114ef1..76b4f375e 100644
+--- a/include/ucontext.h
++++ b/include/ucontext.h
+@@ -23,11 +23,11 @@
+ 
+ #include <features.h>
+ 
+-#ifdef __UCLIBC_HAS_CONTEXT_FUNCS__
+-
+ /* Get machine dependent definition of data structures.  */
+ #include <sys/ucontext.h>
+ 
++#ifdef __UCLIBC_HAS_CONTEXT_FUNCS__
++
+ __BEGIN_DECLS
+ 
+ /* Get user context and store it in variable pointed to by UCP.  */
+-- 
+2.30.2
+
-- 
2.39.2

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Re: [Buildroot] [PATCH] package/uclibc: add patch for libucontext usage

[Thomas Petazzoni via buildroot]

On Wed, 17 Jul 2024 17:12:54 +0200
Waldemar Brodkorb <wbx@openadk.org> wrote:

> *ucontext functions are only implemented for a subset of
> uClibc supported architectures. To allow the external library
> libucontext to be used this small patch is required.
> Tested for riscv64.
> 
> Signed-off-by: Waldemar Brodkorb <wbx@openadk.org>
> ---
>  .../0001-allow-to-use-sys-ucontext.h.patch    | 35 +++++++++++++++++++
>  1 file changed, 35 insertions(+)
>  create mode 100644 package/uclibc/0001-allow-to-use-sys-ucontext.h.patch

Applied to master, thanks.

Thomas
-- 
Thomas Petazzoni, CTO, Bootlin
Embedded Linux and Kernel engineering
https://bootlin.com
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Re: [Buildroot] [PATCH] package/uclibc: add patch for libucontext usage

[Peter Korsgaard]

>>>>> "Waldemar" == Waldemar Brodkorb <wbx@openadk.org> writes:

 > *ucontext functions are only implemented for a subset of
 > uClibc supported architectures. To allow the external library
 > libucontext to be used this small patch is required.
 > Tested for riscv64.

 > Signed-off-by: Waldemar Brodkorb <wbx@openadk.org>

Committed to 2024.02.x and 2024.05.x, thanks.

-- 
Bye, Peter Korsgaard
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