summaryrefslogtreecommitdiff
path: root/net-misc/openssh/files/openssh-8.9_p1-fzero-call-used-regs.patch
diff options
context:
space:
mode:
Diffstat (limited to 'net-misc/openssh/files/openssh-8.9_p1-fzero-call-used-regs.patch')
-rw-r--r--net-misc/openssh/files/openssh-8.9_p1-fzero-call-used-regs.patch32
1 files changed, 32 insertions, 0 deletions
diff --git a/net-misc/openssh/files/openssh-8.9_p1-fzero-call-used-regs.patch b/net-misc/openssh/files/openssh-8.9_p1-fzero-call-used-regs.patch
new file mode 100644
index 000000000000..0231ce46d7b1
--- /dev/null
+++ b/net-misc/openssh/files/openssh-8.9_p1-fzero-call-used-regs.patch
@@ -0,0 +1,32 @@
+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.
+---
+ 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