musl: Add TEMP_FAILURE_RETRY from glibc

Patch it into musl instead of patching all users
(currently elfutils and next ofono).

(From OE-Core rev: 0c68c621d3b8690e3a346170006f75b032511a8a)

Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

2 files changed, 37 insertions, 0 deletions

diff --git a/meta/recipes-core/musl/musl/0001-unistd.h-Add-TEMP_FAILURE_RETRY.patch b/meta/recipes-core/musl/musl/0001-unistd.h-Add-TEMP_FAILURE_RETRY.patch
new file mode 100644
index 0000000000..4d48d61651
--- /dev/null
+++ b/meta/recipes-core/musl/musl/0001-unistd.h-Add-TEMP_FAILURE_RETRY.patch
@@ -0,0 +1,36 @@
+From 19cbebc3fa33c6a1a71a6036da4d67c98f859f06 Mon Sep 17 00:00:00 2001
+From: Adrian Bunk <bunk@stusta.de>
+Date: Wed, 15 May 2019 16:08:33 +0300
+Subject: unistd.h: Add TEMP_FAILURE_RETRY
+
+Signed-off-by: Adrian Bunk <bunk@stusta.de>
+Upstream-Status: Inappropriate [oe-specific]
+---
+ include/unistd.h | 11 +++++++++++
+ 1 file changed, 11 insertions(+)
+
+diff --git a/include/unistd.h b/include/unistd.h
+index 9485da7a..8a75af57 100644
+--- a/include/unistd.h
++++ b/include/unistd.h
+@@ -460,6 +460,17 @@ int eaccess(const char *, int);
+ #define _CS_V6_ENV     1148
+ #define _CS_V7_ENV     1149
+ 
++#ifdef _GNU_SOURCE
++#ifndef TEMP_FAILURE_RETRY
++# define TEMP_FAILURE_RETRY(expression) \
++  (__extension__                                                              \
++    ({ long int __result;                                                     \
++       do __result = (long int) (expression);                                 \
++       while (__result == -1L && errno == EINTR);                             \
++       __result; }))
++#endif
++#endif
++
+ #ifdef __cplusplus
+ }
+ #endif
+-- 
+2.20.1
+
diff --git a/meta/recipes-core/musl/musl_git.bb b/meta/recipes-core/musl/musl_git.bb
index 1e324804e1..2b433aed8c 100644
--- a/meta/recipes-core/musl/musl_git.bb
+++ b/meta/recipes-core/musl/musl_git.bb
@@ -15,6 +15,7 @@ PV = "${BASEVER}+git${SRCPV}"
 SRC_URI = "git://git.musl-libc.org/musl \
            file://0001-Make-dynamic-linker-a-relative-symlink-to-libc.patch \
            file://0002-ldso-Use-syslibdir-and-libdir-as-default-pathes-to-l.patch \
+           file://0001-unistd.h-Add-TEMP_FAILURE_RETRY.patch \
           "
 
 S = "${WORKDIR}/git"