risc-v/qemu: use fully linked apps for kernel build

arch/risc-v/Kconfig

@@ -174,6 +174,7 @@ config ARCH_CHIP_QEMU_RV
 	select ARCH_HAVE_ADDRENV
 	select ARCH_NEED_ADDRENV_MAPPING
 	select ARCH_HAVE_S_MODE
+	select ARCH_HAVE_ELF_EXECUTABLE
 	select ONESHOT
 	select ALARM_ARCH
 	---help---

boards/risc-v/qemu-rv/rv-virt/configs/knetnsh64/defconfig

@@ -36,12 +36,14 @@ CONFIG_ARCH_PGPOOL_PBASE=0x80400000
 CONFIG_ARCH_PGPOOL_SIZE=4194304
 CONFIG_ARCH_PGPOOL_VBASE=0x80400000
 CONFIG_ARCH_RISCV=y
+CONFIG_ARCH_SETJMP_H=y
 CONFIG_ARCH_STACKDUMP=y
 CONFIG_ARCH_TEXT_NPAGES=128
 CONFIG_ARCH_TEXT_VBASE=0xC0000000
 CONFIG_ARCH_USE_MMU=y
 CONFIG_ARCH_USE_MPU=y
 CONFIG_ARCH_USE_S_MODE=y
+CONFIG_BINFMT_ELF_EXECUTABLE=y
 CONFIG_BOARD_LOOPSPERMSEC=6366
 CONFIG_BUILD_KERNEL=y
 CONFIG_CODECS_HASH_MD5=y
@@ -79,6 +81,7 @@ CONFIG_LIBC_ENVPATH=y
 CONFIG_LIBC_EXECFUNCS=y
 CONFIG_LIBC_PERROR_STDOUT=y
 CONFIG_LIBC_STRERROR=y
+CONFIG_LIBM=y
 CONFIG_MEMSET_64BIT=y
 CONFIG_MEMSET_OPTSPEED=y
 CONFIG_MM_PGALLOC=y
@@ -133,3 +136,4 @@ CONFIG_SYSTEM_NSH=y
 CONFIG_SYSTEM_NSH_PROGNAME="init"
 CONFIG_SYSTEM_PING=y
 CONFIG_TESTING_GETPRIME=y
+CONFIG_TESTING_OSTEST=y

boards/risc-v/qemu-rv/rv-virt/configs/knetnsh64_smp/defconfig

@@ -36,12 +36,14 @@ CONFIG_ARCH_PGPOOL_PBASE=0x80400000
 CONFIG_ARCH_PGPOOL_SIZE=4194304
 CONFIG_ARCH_PGPOOL_VBASE=0x80400000
 CONFIG_ARCH_RISCV=y
+CONFIG_ARCH_SETJMP_H=y
 CONFIG_ARCH_STACKDUMP=y
 CONFIG_ARCH_TEXT_NPAGES=128
 CONFIG_ARCH_TEXT_VBASE=0xC0000000
 CONFIG_ARCH_USE_MMU=y
 CONFIG_ARCH_USE_MPU=y
 CONFIG_ARCH_USE_S_MODE=y
+CONFIG_BINFMT_ELF_EXECUTABLE=y
 CONFIG_BOARD_LOOPSPERMSEC=6366
 CONFIG_BUILD_KERNEL=y
 CONFIG_CODECS_HASH_MD5=y
@@ -80,6 +82,7 @@ CONFIG_LIBC_ENVPATH=y
 CONFIG_LIBC_EXECFUNCS=y
 CONFIG_LIBC_PERROR_STDOUT=y
 CONFIG_LIBC_STRERROR=y
+CONFIG_LIBM=y
 CONFIG_MEMCPY_64BIT=y
 CONFIG_MEMCPY_VIK=y
 CONFIG_MEMSET_64BIT=y
@@ -137,4 +140,5 @@ CONFIG_SYSTEM_NSH=y
 CONFIG_SYSTEM_NSH_PROGNAME="init"
 CONFIG_SYSTEM_PING=y
 CONFIG_TESTING_GETPRIME=y
+CONFIG_TESTING_OSTEST=y
 CONFIG_TESTING_SMP=y

boards/risc-v/qemu-rv/rv-virt/configs/knsh32/defconfig

@@ -25,7 +25,7 @@ CONFIG_ARCH_CHIP_QEMU_RV_ISA_A=y
 CONFIG_ARCH_CHIP_QEMU_RV_ISA_C=y
 CONFIG_ARCH_CHIP_QEMU_RV_ISA_M=y
 CONFIG_ARCH_DATA_NPAGES=128
-CONFIG_ARCH_DATA_VBASE=0xC0400000
+CONFIG_ARCH_DATA_VBASE=0xC0100000
 CONFIG_ARCH_HEAP_NPAGES=128
 CONFIG_ARCH_HEAP_VBASE=0xC0800000
 CONFIG_ARCH_INTERRUPTSTACK=2048
@@ -41,6 +41,7 @@ CONFIG_ARCH_TEXT_VBASE=0xC0000000
 CONFIG_ARCH_USE_MMU=y
 CONFIG_ARCH_USE_MPU=y
 CONFIG_ARCH_USE_S_MODE=y
+CONFIG_BINFMT_ELF_EXECUTABLE=y
 CONFIG_BOARD_LOOPSPERMSEC=6366
 CONFIG_BUILD_KERNEL=y
 CONFIG_DEV_ZERO=y
@@ -62,6 +63,7 @@ CONFIG_LIBC_ENVPATH=y
 CONFIG_LIBC_EXECFUNCS=y
 CONFIG_LIBC_PERROR_STDOUT=y
 CONFIG_LIBC_STRERROR=y
+CONFIG_LIBM=y
 CONFIG_MM_PGALLOC=y
 CONFIG_NFILE_DESCRIPTORS_PER_BLOCK=6
 CONFIG_NSH_ARCHINIT=y
@@ -84,4 +86,5 @@ CONFIG_SYSLOG_TIMESTAMP=y
 CONFIG_SYSTEM_NSH=y
 CONFIG_SYSTEM_NSH_PROGNAME="init"
 CONFIG_TESTING_GETPRIME=y
+CONFIG_TESTING_OSTEST=y
 CONFIG_USEC_PER_TICK=1000

boards/risc-v/qemu-rv/rv-virt/configs/knsh64/defconfig

@@ -41,6 +41,7 @@ CONFIG_ARCH_TEXT_VBASE=0xC0000000
 CONFIG_ARCH_USE_MMU=y
 CONFIG_ARCH_USE_MPU=y
 CONFIG_ARCH_USE_S_MODE=y
+CONFIG_BINFMT_ELF_EXECUTABLE=y
 CONFIG_BOARD_LOOPSPERMSEC=6366
 CONFIG_BUILD_KERNEL=y
 CONFIG_DEBUG_ASSERTIONS=y
@@ -66,6 +67,7 @@ CONFIG_LIBC_ENVPATH=y
 CONFIG_LIBC_EXECFUNCS=y
 CONFIG_LIBC_PERROR_STDOUT=y
 CONFIG_LIBC_STRERROR=y
+CONFIG_LIBM=y
 CONFIG_MEMSET_64BIT=y
 CONFIG_MEMSET_OPTSPEED=y
 CONFIG_MM_PGALLOC=y
@@ -92,4 +94,5 @@ CONFIG_SYSLOG_TIMESTAMP=y
 CONFIG_SYSTEM_NSH=y
 CONFIG_SYSTEM_NSH_PROGNAME="init"
 CONFIG_TESTING_GETPRIME=y
+CONFIG_TESTING_OSTEST=y
 CONFIG_USEC_PER_TICK=1000

boards/risc-v/qemu-rv/rv-virt/configs/ksmp64/defconfig

@@ -41,6 +41,7 @@ CONFIG_ARCH_TEXT_VBASE=0xC0000000
 CONFIG_ARCH_USE_MMU=y
 CONFIG_ARCH_USE_MPU=y
 CONFIG_ARCH_USE_S_MODE=y
+CONFIG_BINFMT_ELF_EXECUTABLE=y
 CONFIG_BOARD_LOOPSPERMSEC=6366
 CONFIG_BUILD_KERNEL=y
 CONFIG_DEBUG_FULLOPT=y
@@ -65,6 +66,7 @@ CONFIG_LIBC_ENVPATH=y
 CONFIG_LIBC_EXECFUNCS=y
 CONFIG_LIBC_PERROR_STDOUT=y
 CONFIG_LIBC_STRERROR=y
+CONFIG_LIBM=y
 CONFIG_MEMSET_64BIT=y
 CONFIG_MEMSET_OPTSPEED=y
 CONFIG_MM_PGALLOC=y
@@ -93,4 +95,5 @@ CONFIG_SYSLOG_TIMESTAMP=y
 CONFIG_SYSTEM_NSH=y
 CONFIG_SYSTEM_NSH_PROGNAME="init"
 CONFIG_TESTING_GETPRIME=y
+CONFIG_TESTING_OSTEST=y
 CONFIG_TESTING_SMP=y

boards/risc-v/qemu-rv/rv-virt/scripts/Make.defs

@@ -55,5 +55,7 @@ else
   LDELFFLAGS = --oformat elf64-littleriscv
 endif
 
-LDELFFLAGS += -r -e main
-LDELFFLAGS += -T $(call CONVERT_PATH,$(TOPDIR)/binfmt/libelf/gnu-elf.ld)
+ifeq ($(CONFIG_BINFMT_ELF_RELOCATABLE),y)
+LDELFFLAGS += -r
+endif
+

boards/risc-v/qemu-rv/rv-virt/scripts/gnu-elf.ld

@@ -0,0 +1,131 @@
+/****************************************************************************
+ * boards/risc-v/qemu-rv/rv-virt/scripts/gnu-elf.ld
+ *
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.  The
+ * ASF licenses this file to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance with the
+ * License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  See the
+ * License for the specific language governing permissions and limitations
+ * under the License.
+ *
+ ****************************************************************************/
+
+SECTIONS
+{
+  . = 0xC0000000;
+  .text :
+    {
+      _stext = . ;
+      *(.text)
+      *(.text.*)
+      *(.gnu.warning)
+      *(.stub)
+      *(.glue_7)
+      *(.glue_7t)
+      *(.jcr)
+
+      /* C++ support:  The .init and .fini sections contain specific logic
+       * to manage static constructors and destructors.
+       */
+
+      *(.gnu.linkonce.t.*)
+      *(.init)             /* Old ABI */
+      *(.fini)             /* Old ABI */
+      _etext = . ;
+    }
+
+  .rodata :
+    {
+      _srodata = . ;
+      *(.rodata)
+      *(.rodata1)
+      *(.rodata.*)
+      *(.gnu.linkonce.r*)
+      _erodata = . ;
+    }
+
+  . = 0xC0101000;
+  .data :
+    {
+      _sdata = . ;
+      *(.data)
+      *(.data1)
+      *(.data.*)
+      *(.gnu.linkonce.d*)
+      . = ALIGN(4);
+      _edata = . ;
+    }
+
+  /* C++ support. For each global and static local C++ object,
+   * GCC creates a small subroutine to construct the object. Pointers
+   * to these routines (not the routines themselves) are stored as
+   * simple, linear arrays in the .ctors section of the object file.
+   * Similarly, pointers to global/static destructor routines are
+   * stored in .dtors.
+   */
+
+  .ctors :
+    {
+      _sctors = . ;
+      KEEP(*(SORT_BY_INIT_PRIORITY(.init_array.*) SORT_BY_INIT_PRIORITY(.ctors.*)))
+      KEEP(*(.init_array .ctors))
+      _ectors = . ;
+    }
+
+  .dtors :
+    {
+      _sdtors = . ;
+      KEEP (*(.dtors))       /* Old ABI:  Unallocated */
+      KEEP (*(.fini_array))  /* New ABI:  Allocated */
+      KEEP (*(SORT(.fini_array.*)))
+      _edtors = . ;
+    }
+
+  .bss :
+    {
+      _sbss = . ;
+      *(.bss)
+      *(.bss.*)
+      *(.sbss)
+      *(.sbss.*)
+      *(.gnu.linkonce.b*)
+      *(COMMON)
+      _ebss = . ;
+    }
+
+  /* Thread local storage support */
+  .tdata : {
+      _stdata = ABSOLUTE(.);
+      KEEP (*(.tdata .tdata.* .gnu.linkonce.td.*));
+      _etdata = ABSOLUTE(.);
+  }
+
+  .tbss : {
+      _stbss = ABSOLUTE(.);
+      KEEP (*(.tbss .tbss.* .gnu.linkonce.tb.* .tcommon));
+      _etbss = ABSOLUTE(.);
+  }
+
+    /* Stabs debugging sections.    */
+
+    .stab 0 : { *(.stab) }
+    .stabstr 0 : { *(.stabstr) }
+    .stab.excl 0 : { *(.stab.excl) }
+    .stab.exclstr 0 : { *(.stab.exclstr) }
+    .stab.index 0 : { *(.stab.index) }
+    .stab.indexstr 0 : { *(.stab.indexstr) }
+    .comment 0 : { *(.comment) }
+    .debug_abbrev 0 : { *(.debug_abbrev) }
+    .debug_info 0 : { *(.debug_info) }
+    .debug_line 0 : { *(.debug_line) }
+    .debug_pubnames 0 : { *(.debug_pubnames) }
+    .debug_aranges 0 : { *(.debug_aranges) }
+}