various fixes for embedded-test run

package/busybox/config/shell/Config.in

@@ -88,7 +88,7 @@ config BUSYBOX_SHELL_ASH
 
 config BUSYBOX_ASH
 	bool "ash (78 kb)"
-	default y
+	default n
 	depends on !BUSYBOX_NOMMU
 	select BUSYBOX_SHELL_ASH
 	help

package/busybox/config/util-linux/Config.in

@@ -517,7 +517,7 @@ config BUSYBOX_MKFS_VFAT
 	Alias to "mkdosfs".
 config BUSYBOX_MKSWAP
 	bool "mkswap (6.3 kb)"
-	default y
+	default n
 	help
 	The mkswap utility is used to configure a file or disk partition as
 	Linux swap space. This allows Linux to use the entire file or
@@ -781,7 +781,7 @@ config BUSYBOX_SETSID
 	setsid runs a program in a new session
 config BUSYBOX_SWAPON
 	bool "swapon (15 kb)"
-	default y
+	default n
 	help
 	Once you have created some swap space using 'mkswap', you also need
 	to enable your swap space with the 'swapon' utility. The 'swapoff'
@@ -807,7 +807,7 @@ config BUSYBOX_FEATURE_SWAPON_PRI
 
 config BUSYBOX_SWAPOFF
 	bool "swapoff (14 kb)"
-	default y
+	default n
 
 config BUSYBOX_FEATURE_SWAPONOFF_LABEL
 	bool "Support specifying devices by label or UUID"

target/config/Config.in.compiler

@@ -20,8 +20,7 @@ default ADK_TOOLCHAIN_GCC_METAG if ADK_TARGET_ARCH_METAG
 default ADK_TOOLCHAIN_GCC_NDS32 if ADK_TARGET_ARCH_NDS32
 default ADK_TOOLCHAIN_GCC_7 if ADK_TARGET_CPU_ARM_ARM11MPCORE
 default ADK_TOOLCHAIN_GCC_7 if ADK_TARGET_CPU_ARM_CORTEX_A53
-default ADK_TOOLCHAIN_GCC_7 if ADK_TARGET_ARCH_M68K
-default ADK_TOOLCHAIN_GCC_7 if ADK_TARGET_ARCH_SPARC
+default ADK_TOOLCHAIN_GCC_9 if ADK_TARGET_ARCH_MICROBLAZE
 default ADK_TOOLCHAIN_GCC_10
 
 config ADK_TOOLCHAIN_GCC_GIT

target/linux/Config.in.kernelversion

@@ -24,7 +24,7 @@ default ADK_TARGET_LINUX_KERNEL_VERSION_4_9 if ADK_TARGET_SYSTEM_ST_STM32F429
 default ADK_TARGET_LINUX_KERNEL_VERSION_4_9 if ADK_TARGET_SYSTEM_ST_STM32F769
 default ADK_TARGET_LINUX_KERNEL_VERSION_4_14 if ADK_TARGET_SYSTEM_QEMU_ARM_VERSATILEPB
 default ADK_TARGET_LINUX_KERNEL_VERSION_4_19 if ADK_TARGET_ARCH_ARC
-default ADK_TARGET_LINUX_KERNEL_VERSION_5_10
+default ADK_TARGET_LINUX_KERNEL_VERSION_5_4
 
 config ADK_TARGET_LINUX_KERNEL_VERSION_GIT
 	bool "git"

target/linux/patches/5.4.99/mipsr6.patch

@@ -0,0 +1,113 @@
+diff -Nur linux-5.10.17.orig/arch/mips/include/asm/vdso/gettimeofday.h linux-5.10.17/arch/mips/include/asm/vdso/gettimeofday.h
+--- linux-5.10.17.orig/arch/mips/include/asm/vdso/gettimeofday.h	2021-02-17 11:02:30.000000000 +0100
++++ linux-5.10.17/arch/mips/include/asm/vdso/gettimeofday.h	2021-04-09 15:24:43.613709753 +0200
+@@ -30,12 +30,21 @@
+ 	register long nr asm("v0") = __NR_gettimeofday;
+ 	register long error asm("a3");
+ 
++#if MIPS_ISA_REV >= 6
++	asm volatile(
++	"       syscall\n"
++	: "=r" (ret), "=r" (error)
++	: "r" (tv), "r" (tz), "r" (nr)
++	: "$1", "$3", "$8", "$9", "$10", "$11", "$12", "$13",
++	  "$14", "$15", "$24", "$25", "memory");
++#else
+ 	asm volatile(
+ 	"       syscall\n"
+ 	: "=r" (ret), "=r" (error)
+ 	: "r" (tv), "r" (tz), "r" (nr)
+ 	: "$1", "$3", "$8", "$9", "$10", "$11", "$12", "$13",
+ 	  "$14", "$15", "$24", "$25", "hi", "lo", "memory");
++#endif
+ 
+ 	return error ? -ret : ret;
+ }
+@@ -54,12 +63,21 @@
+ #endif
+ 	register long error asm("a3");
+ 
++#if MIPS_ISA_REV >= 6
++	asm volatile(
++	"       syscall\n"
++	: "=r" (ret), "=r" (error)
++	: "r" (clkid), "r" (ts), "r" (nr)
++	: "$1", "$3", "$8", "$9", "$10", "$11", "$12", "$13",
++	  "$14", "$15", "$24", "$25", "memory");
++#else
+ 	asm volatile(
+ 	"       syscall\n"
+ 	: "=r" (ret), "=r" (error)
+ 	: "r" (clkid), "r" (ts), "r" (nr)
+ 	: "$1", "$3", "$8", "$9", "$10", "$11", "$12", "$13",
+ 	  "$14", "$15", "$24", "$25", "hi", "lo", "memory");
++#endif
+ 
+ 	return error ? -ret : ret;
+ }
+@@ -78,12 +96,21 @@
+ #endif
+ 	register long error asm("a3");
+ 
++#if MIPS_ISA_REV >= 6
++	asm volatile(
++	"       syscall\n"
++	: "=r" (ret), "=r" (error)
++	: "r" (clkid), "r" (ts), "r" (nr)
++	: "$1", "$3", "$8", "$9", "$10", "$11", "$12", "$13",
++	  "$14", "$15", "$24", "$25", "memory");
++#else
+ 	asm volatile(
+ 	"       syscall\n"
+ 	: "=r" (ret), "=r" (error)
+ 	: "r" (clkid), "r" (ts), "r" (nr)
+ 	: "$1", "$3", "$8", "$9", "$10", "$11", "$12", "$13",
+ 	  "$14", "$15", "$24", "$25", "hi", "lo", "memory");
++#endif
+ 
+ 	return error ? -ret : ret;
+ }
+@@ -100,12 +127,21 @@
+ 	register long nr asm("v0") = __NR_clock_gettime;
+ 	register long error asm("a3");
+ 
++#if MIPS_ISA_REV >= 6
++	asm volatile(
++	"       syscall\n"
++	: "=r" (ret), "=r" (error)
++	: "r" (clkid), "r" (ts), "r" (nr)
++	: "$1", "$3", "$8", "$9", "$10", "$11", "$12", "$13",
++	  "$14", "$15", "$24", "$25", "memory");
++#else
+ 	asm volatile(
+ 	"       syscall\n"
+ 	: "=r" (ret), "=r" (error)
+ 	: "r" (clkid), "r" (ts), "r" (nr)
+ 	: "$1", "$3", "$8", "$9", "$10", "$11", "$12", "$13",
+ 	  "$14", "$15", "$24", "$25", "hi", "lo", "memory");
++#endif
+ 
+ 	return error ? -ret : ret;
+ }
+@@ -120,12 +156,21 @@
+ 	register long nr asm("v0") = __NR_clock_getres;
+ 	register long error asm("a3");
+ 
++#if MIPS_ISA_REV >= 6
++	asm volatile(
++	"       syscall\n"
++	: "=r" (ret), "=r" (error)
++	: "r" (clkid), "r" (ts), "r" (nr)
++	: "$1", "$3", "$8", "$9", "$10", "$11", "$12", "$13",
++	  "$14", "$15", "$24", "$25", "memory");
++#else
+ 	asm volatile(
+ 	"       syscall\n"
+ 	: "=r" (ret), "=r" (error)
+ 	: "r" (clkid), "r" (ts), "r" (nr)
+ 	: "$1", "$3", "$8", "$9", "$10", "$11", "$12", "$13",
+ 	  "$14", "$15", "$24", "$25", "hi", "lo", "memory");
++#endif
+ 
+ 	return error ? -ret : ret;
+ }

toolchain/gcc/patches/10.3.0/add-crtreloc.frv

@@ -0,0 +1,12 @@
+diff -Nur gcc-8.3.0.orig/gcc/config/frv/linux.h gcc-8.3.0/gcc/config/frv/linux.h
+--- gcc-8.3.0.orig/gcc/config/frv/linux.h	2018-01-03 11:03:58.000000000 +0100
++++ gcc-8.3.0/gcc/config/frv/linux.h	2019-10-08 10:52:00.176295821 +0200
+@@ -27,7 +27,7 @@
+ 
+ #undef STARTFILE_SPEC
+ #define STARTFILE_SPEC \
+-  "%{!shared: %{pg|p|profile:gcrt1.o%s;pie:Scrt1.o%s;:crt1.o%s}} \
++  "%{!shared: %{pg|p|profile:gcrt1.o%s;pie:Scrt1.o%s;:crt1.o%s}} crtreloc.o%s \
+    crti.o%s %{static:crtbeginT.o%s;shared|pie:crtbeginS.o%s;:crtbegin.o%s}"
+ 
+ #undef ENDFILE_SPEC

toolchain/gcc/patches/10.3.0/nios2-softfp.patch

@@ -0,0 +1,14 @@
+diff -Nur gcc-6.2.0.orig/libgcc/config.host gcc-6.2.0/libgcc/config.host
+--- gcc-6.2.0.orig/libgcc/config.host	2016-05-17 08:15:52.000000000 +0200
++++ gcc-6.2.0/libgcc/config.host	2016-10-15 14:42:53.971919904 +0200
+@@ -962,6 +962,10 @@
+ 		;;
+ 	esac
+ 	;;
++nios2-*-linux-uclibc*)
++	tmake_file="$tmake_file nios2/t-nios2 nios2/t-linux t-libgcc-pic t-slibgcc-libgcc t-softfp-sfdf t-softfp"
++	md_unwind_header=nios2/linux-unwind.h
++	;;
+ nios2-*-linux*)
+ 	tmake_file="$tmake_file nios2/t-nios2 nios2/t-linux t-libgcc-pic t-slibgcc-libgcc"
+ 	md_unwind_header=nios2/linux-unwind.h