systemd: Fix build on mips/musl

(From OE-Core rev: b4a0d8799af0a3d1b685dd7200b545fdb2c79d64)

Signed-off-by: Khem Raj <raj.khem@gmail.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta/recipes-core/systemd/systemd/0028-missing_syscall.h-Define-MIPS-ABI-defines-for-musl.patch

@@ -0,0 +1,36 @@
+From 7b32582c066549fea0f7180a6c575e7fa37a867f Mon Sep 17 00:00:00 2001
+From: Khem Raj <raj.khem@gmail.com>
+Date: Mon, 12 Apr 2021 23:44:53 -0700
+Subject: [PATCH] missing_syscall.h: Define MIPS ABI defines for musl
+
+musl does not define _MIPS_SIM_ABI32, _MIPS_SIM_NABI32, _MIPS_SIM_ABI64
+unlike glibc where these are provided by libc headers, therefore define
+them here in case they are undefined
+
+Upstream-Status: Pending
+
+Signed-off-by: Khem Raj <raj.khem@gmail.com>
+---
+ src/basic/missing_syscall.h | 6 ++++++
+ 1 file changed, 6 insertions(+)
+
+diff --git a/src/basic/missing_syscall.h b/src/basic/missing_syscall.h
+index 0594a1b930..495d161334 100644
+--- a/src/basic/missing_syscall.h
++++ b/src/basic/missing_syscall.h
+@@ -15,6 +15,12 @@
+ #include <asm/sgidefs.h>
+ #endif
+ 
++#ifndef _MIPS_SIM_ABI32
++#define _MIPS_SIM_ABI32		1
++#define _MIPS_SIM_NABI32	2
++#define _MIPS_SIM_ABI64		3
++#endif
++
+ #if defined(__x86_64__) && defined(__ILP32__)
+ #  define systemd_SC_arch_bias(x) ((x) | /* __X32_SYSCALL_BIT */ 0x40000000)
+ #elif defined(__ia64__)
+-- 
+2.31.1
+

meta/recipes-core/systemd/systemd_247.6.bb

@@ -55,6 +55,7 @@ SRC_URI_MUSL = "\
                file://0022-do-not-disable-buffer-in-writing-files.patch \
                file://0025-Handle-__cpu_mask-usage.patch \
                file://0026-Handle-missing-gshadow.patch \
+               file://0028-missing_syscall.h-Define-MIPS-ABI-defines-for-musl.patch \
                "
 
 PAM_PLUGINS = " \