sys-apps/util-linux: fix compile error caused by undefined SYS_pidfd_send_signal

Closes: https://bugs.gentoo.org/714100
Package-Manager: Portage-2.3.94, Repoman-2.3.21
Signed-off-by: Thomas Deutschmann <whissi@gentoo.org>

3 files changed, 99 insertions, 0 deletions

diff --git a/sys-apps/util-linux/files/util-linux-2.35.1-cleanup-pidfd-include.patch b/sys-apps/util-linux/files/util-linux-2.35.1-cleanup-pidfd-include.patch
new file mode 100644
index 000000000000..85e4d705735c
--- /dev/null
+++ b/sys-apps/util-linux/files/util-linux-2.35.1-cleanup-pidfd-include.patch
@@ -0,0 +1,36 @@
+From 0a4035ff2e4fd5b5ae0cf8f8665696c2aff53b75 Mon Sep 17 00:00:00 2001
+From: Karel Zak <kzak@redhat.com>
+Date: Tue, 10 Mar 2020 11:43:16 +0100
+Subject: [PATCH] include: cleanup pidfd inckudes
+
+Signed-off-by: Karel Zak <kzak@redhat.com>
+---
+ include/pidfd-utils.h | 6 +++---
+ 1 file changed, 3 insertions(+), 3 deletions(-)
+
+diff --git a/include/pidfd-utils.h b/include/pidfd-utils.h
+index 0baedd2c9..4a6c3a604 100644
+--- a/include/pidfd-utils.h
++++ b/include/pidfd-utils.h
+@@ -3,10 +3,10 @@
+ 
+ #if defined(__linux__)
+ # include <sys/syscall.h>
+-# if defined(SYS_pidfd_send_signal)
++# if defined(SYS_pidfd_send_signal) && defined(SYS_pidfd_open)
+ #  include <sys/types.h>
+ 
+-#  ifndef HAVE_PIDFD_OPEN
++#  ifndef HAVE_PIDFD_SEND_SIGNAL
+ static inline int pidfd_send_signal(int pidfd, int sig, siginfo_t *info,
+ 				    unsigned int flags)
+ {
+@@ -14,7 +14,7 @@ static inline int pidfd_send_signal(int pidfd, int sig, siginfo_t *info,
+ }
+ #  endif
+ 
+-#  ifndef HAVE_PIDFD_SEND_SIGNAL
++#  ifndef HAVE_PIDFD_OPEN
+ static inline int pidfd_open(pid_t pid, unsigned int flags)
+ {
+ 	return syscall(SYS_pidfd_open, pid, flags);
diff --git a/sys-apps/util-linux/files/util-linux-2.35.1-include_sys_types-header.patch b/sys-apps/util-linux/files/util-linux-2.35.1-include_sys_types-header.patch
new file mode 100644
index 000000000000..8c646ee73a9d
--- /dev/null
+++ b/sys-apps/util-linux/files/util-linux-2.35.1-include_sys_types-header.patch
@@ -0,0 +1,58 @@
+From 3cfde0370d3a8949df0c5bcf447cec6692910ed2 Mon Sep 17 00:00:00 2001
+From: Sami Kerola <kerolasa@iki.fi>
+Date: Sat, 15 Feb 2020 21:12:50 +0000
+Subject: [PATCH] kill: include sys/types.h before checking
+ SYS_pidfd_send_signal
+
+Including sys/types.h must happen before SYS_pidfd_send_signal is checked,
+because that header defines variable in normal conditions.  When sys/types.h
+does not have SYS_pidfd_send_signal then fallback is defined in config.h
+that is included by default, and has therefore worked fine before and after
+this change.
+
+Signed-off-by: Sami Kerola <kerolasa@iki.fi>
+---
+ include/pidfd-utils.h | 18 ++++++++++--------
+ 1 file changed, 10 insertions(+), 8 deletions(-)
+
+diff --git a/include/pidfd-utils.h b/include/pidfd-utils.h
+index 593346576..0baedd2c9 100644
+--- a/include/pidfd-utils.h
++++ b/include/pidfd-utils.h
+@@ -1,26 +1,28 @@
+ #ifndef UTIL_LINUX_PIDFD_UTILS
+ #define UTIL_LINUX_PIDFD_UTILS
+ 
+-#if defined(__linux__) && defined(SYS_pidfd_send_signal)
+-# include <sys/types.h>
++#if defined(__linux__)
+ # include <sys/syscall.h>
++# if defined(SYS_pidfd_send_signal)
++#  include <sys/types.h>
+ 
+-# ifndef HAVE_PIDFD_OPEN
++#  ifndef HAVE_PIDFD_OPEN
+ static inline int pidfd_send_signal(int pidfd, int sig, siginfo_t *info,
+ 				    unsigned int flags)
+ {
+ 	return syscall(SYS_pidfd_send_signal, pidfd, sig, info, flags);
+ }
+-# endif
++#  endif
+ 
+-# ifndef HAVE_PIDFD_SEND_SIGNAL
++#  ifndef HAVE_PIDFD_SEND_SIGNAL
+ static inline int pidfd_open(pid_t pid, unsigned int flags)
+ {
+ 	return syscall(SYS_pidfd_open, pid, flags);
+ }
+-# endif
++#  endif
+ 
+-# define UL_HAVE_PIDFD 1
++#  define UL_HAVE_PIDFD 1
+ 
+-#endif /* __linux__ && SYS_pidfd_send_signal */
++# endif	/* SYS_pidfd_send_signal */
++#endif /* __linux__ */
+ #endif /* UTIL_LINUX_PIDFD_UTILS */
diff --git a/sys-apps/util-linux/util-linux-2.35.1.ebuild b/sys-apps/util-linux/util-linux-2.35.1.ebuild
index c3759ac85c74..6c0d78321cc9 100644
--- a/sys-apps/util-linux/util-linux-2.35.1.ebuild
+++ b/sys-apps/util-linux/util-linux-2.35.1.ebuild
@@ -76,6 +76,11 @@ RESTRICT="!test? ( test )"
 
 S="${WORKDIR}/${MY_P}"
 
+PATCHES=(
+	"${FILESDIR}"/util-linux-2.35.1-include_sys_types-header.patch
+	"${FILESDIR}"/util-linux-2.35.1-cleanup-pidfd-include.patch
+)
+
 src_prepare() {
 	default