From: Petr Vorel <petr.vorel@gmail.com>
To: ltp@lists.linux.it
Subject: [LTP] [PATCH 1/5] rt_sigaction.h: Check for type sighandler_t and use if present
Date: Mon, 18 Mar 2019 04:23:26 +0100 [thread overview]
Message-ID: <20190318032330.3346-2-petr.vorel@gmail.com> (raw)
In-Reply-To: <20190318032330.3346-1-petr.vorel@gmail.com>
__sighandler_t is libc implementation specific and should not be relied
upon. Instead, we fall back upon void (*)(int), as specified by POSIX.
This fixes MUSL build.
Credits: taken from util-linux
Signed-off-by: Petr Vorel <petr.vorel@gmail.com>
---
include/lapi/rt_sigaction.h | 8 ++++++++
m4/ltp-sighandler_t.m4 | 8 ++++++++
2 files changed, 16 insertions(+)
create mode 100644 m4/ltp-sighandler_t.m4
diff --git a/include/lapi/rt_sigaction.h b/include/lapi/rt_sigaction.h
index 2dbbc7672..ff1a7314d 100644
--- a/include/lapi/rt_sigaction.h
+++ b/include/lapi/rt_sigaction.h
@@ -36,12 +36,20 @@
#if defined(__mips__)
struct kernel_sigaction {
unsigned int sa_flags;
+# ifdef HAVE_SIGHANDLER_T
__sighandler_t k_sa_handler;
+# else
+void (* k_sa_handler)(int);
+# endif
sigset_t sa_mask;
};
#else
struct kernel_sigaction {
+# ifdef HAVE_SIGHANDLER_T
__sighandler_t k_sa_handler;
+# else
+void (* k_sa_handler)(int);
+# endif
unsigned long sa_flags;
void (*sa_restorer) (void);
sigset_t sa_mask;
diff --git a/m4/ltp-sighandler_t.m4 b/m4/ltp-sighandler_t.m4
new file mode 100644
index 000000000..97c70a269
--- /dev/null
+++ b/m4/ltp-sighandler_t.m4
@@ -0,0 +1,8 @@
+dnl SPDX-License-Identifier: GPL-2.0-or-later
+dnl Copyright (c) 2019 Petr Vorel <petr.vorel@gmail.com>
+
+AC_DEFUN([LTP_CHECK_SIGHANDLER_T],[
+AC_CHECK_TYPES([sighandler_t], [], [], [[
+#include <signal.h>
+]])
+])
--
2.20.1
next prev parent reply other threads:[~2019-03-18 3:23 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-03-18 3:23 [LTP] [PATCH 0/5] Some MUSL fixes Petr Vorel
2019-03-18 3:23 ` Petr Vorel [this message]
2019-03-18 15:40 ` [LTP] [PATCH 1/5] rt_sigaction.h: Check for type sighandler_t and use if present Cyril Hrubis
2019-03-18 18:43 ` Petr Vorel
2019-03-18 3:23 ` [LTP] [PATCH 2/5] {rt_, }sigaction: Define _GNU_SOURCE to get SA_NOMASK on MUSL Petr Vorel
2019-03-18 15:41 ` Cyril Hrubis
2019-03-18 3:23 ` [LTP] [PATCH 3/5] ptrace: Use int instead of enum __ptrace_request Petr Vorel
2019-03-18 15:50 ` Cyril Hrubis
2019-03-18 3:23 ` [LTP] [PATCH 4/5] mremap: Define _GNU_SOURCE to get MREMAP_MAYMOVE on MUSL Petr Vorel
2019-03-18 15:51 ` Cyril Hrubis
2019-03-18 3:23 ` [LTP] [PATCH 5/5] mallopt: Test only on glibc Petr Vorel
2019-03-18 15:59 ` Cyril Hrubis
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