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package/openssh: fix '-fzero-call-used-regs' option support detection

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- add upstream patch ([1]) to fix '-fzero-call-used-regs' gcc compiler option
  support detection

- add autoreconf as the patch touches m4/openssh.m4

Fixes:

  - https://bugs.busybox.net/show_bug.cgi?id=14651

  bitmap.c: In function ‘reserve’:
  bitmap.c:98:1: sorry, unimplemented: ‘-fzero-call-used-regs’ not supported on this target
     98 | }
        | ^

[1] f107467179.patch

Signed-off-by: Peter Seiderer <ps.report@gmx.net>
Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>
This commit is contained in:
Peter Seiderer 2022-03-11 07:55:11 +01:00 committed by Yann E. MORIN
parent aee590b3bc
commit 66fd92a4ce
2 changed files with 42 additions and 0 deletions
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38
package/openssh/0002-Improve-detection-of-fzero-call-used-regs-all-suppor.patch Normal file
View File

@ -0,0 +1,38 @@
From b5fee5fe98f708c1dc61a1564db35eacadbfe8b3 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: https://github.com/openssh/openssh-portable/commit/f107467179428a0e3ea9e4aa9738ac12ff02822d.patch]
Signed-off-by: Peter Seiderer <ps.report@gmx.net>
---
m4/openssh.m4 | 3 +++
1 file changed, 3 insertions(+)
diff --git a/m4/openssh.m4 b/m4/openssh.m4
index 4f9c379..8c33c70 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
--
2.35.1

4
package/openssh/openssh.mk
View File

@ -12,6 +12,10 @@ OPENSSH_CPE_ID_UPDATE = $(OPENSSH_VERSION_MINOR)
OPENSSH_SITE = http://ftp.openbsd.org/pub/OpenBSD/OpenSSH/portable
OPENSSH_LICENSE = BSD-3-Clause, BSD-2-Clause, Public Domain
OPENSSH_LICENSE_FILES = LICENCE
# patch touching m4/openssh.m4
OPENSSH_AUTORECONF = YES
OPENSSH_CONF_ENV = \
LD="$(TARGET_CC)" \
LDFLAGS="$(TARGET_CFLAGS)" \