1 files changed, 35 insertions, 0 deletions

diff --git a/meta/recipes-connectivity/openssh/openssh/f107467179428a0e3ea9e4aa9738ac12ff02822d.patch b/meta/recipes-connectivity/openssh/openssh/f107467179428a0e3ea9e4aa9738ac12ff02822d.patch
new file mode 100644
index 0000000000..847c0a143c
--- /dev/null
+++ b/meta/recipes-connectivity/openssh/openssh/f107467179428a0e3ea9e4aa9738ac12ff02822d.patch
@@ -0,0 +1,35 @@
+From f107467179428a0e3ea9e4aa9738ac12ff02822d Mon Sep 17 00:00:00 2001
+From: Colin Watson <cjwatson@debian.org>
+Date: Thu, 24 Feb 2022 16:04:18 +0000
+Subject: [PATCH] Improve detection of -fzero-call-used-regs=all support
+
+GCC doesn't tell us whether this option is supported unless it runs into
+the situation where it would need to emit corresponding code.
+
+Upstream-Status: Backport
+Signed-off-by: Alexander Kanavin <alex@linutronix.de>
+---
+ m4/openssh.m4 | 3 +++
+ 1 file changed, 3 insertions(+)
+
+diff --git a/m4/openssh.m4 b/m4/openssh.m4
+index 4f9c3792dc1..8c33c701b8b 100644
+--- a/m4/openssh.m4
++++ b/m4/openssh.m4
+@@ -14,6 +14,8 @@ AC_DEFUN([OSSH_CHECK_CFLAG_COMPILE], [{
+        AC_COMPILE_IFELSE([AC_LANG_SOURCE([[
+ #include <stdlib.h>
+ #include <stdio.h>
++/* Trivial function to help test for -fzero-call-used-regs */
++void f(int n) {}
+ int main(int argc, char **argv) {
+        (void)argv;
+        /* Some math to catch -ftrapv problems in the toolchain */
+@@ -21,6 +23,7 @@ int main(int argc, char **argv) {
+        float l = i * 2.1;
+        double m = l / 0.5;
+        long long int n = argc * 12345LL, o = 12345LL * (long long int)argc;
++       f(0);
+        printf("%d %d %d %f %f %lld %lld\n", i, j, k, l, m, n, o);
+        /*
+         * Test fallthrough behaviour.  clang 10's -Wimplicit-fallthrough does