From: John David Anglin <dave.anglin@bell.net>
Date: Thu, 6 Jun 2024 16:11:40 +0000 (+0200)
Subject: Change how stack grows on HPPA.
X-Git-Tag: archive/raspbian/6.6.2+dfsg-8+rpi1~1^2~3
X-Git-Url: https://dgit.raspbian.org/?a=commitdiff_plain;h=835c9c365b62f236b3ea3d711f3d64319731c27d;p=qt6-base.git

Change how stack grows on HPPA.

Bug-Debian: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1042018
Reviewed-by: Lisandro Damián Nicanor Pérez Meyer <lisandro@debian.org>
Last-Update: 2023-07-28

On HPPA stack grows upwards. This patch introduces this change for
this 3rd party code.

Gbp-Pq: Name forkfd_grow_stack_upwards_on_hppa.patch
---

diff --git a/src/3rdparty/forkfd/forkfd_linux.c b/src/3rdparty/forkfd/forkfd_linux.c
index 4dacc191..40b02657 100644
--- a/src/3rdparty/forkfd/forkfd_linux.c
+++ b/src/3rdparty/forkfd/forkfd_linux.c
@@ -169,7 +169,12 @@ int system_vforkfd(int flags, pid_t *ppid, int (*childFn)(void *), void *token,
     }
     *system = 1;
 
+#if defined(__hppa__)
+    /* Stack grows up */
+    pid = clone(childFn, childStack, cloneflags, token, &pidfd, NULL, NULL);
+#else
     pid = clone(childFn, childStack + sizeof(childStack), cloneflags, token, &pidfd, NULL, NULL);
+#endif
     if (pid < 0)
         return pid;
     if (ppid)