support musl libc on nuttx and add test case

Ubiquitous/Nuttx_Fusion_XiUOS/aiit_board/xidatong-arm32/configs/muslnsh/defconfig

@@ -0,0 +1,74 @@
+#
+# This file is autogenerated: PLEASE DO NOT EDIT IT.
+#
+# You can use "make menuconfig" to make any modifications to the installed .config file.
+# You can then do "make savedefconfig" to generate a new defconfig file that includes your
+# modifications.
+#
+CONFIG_ADD_NUTTX_FETURES=y
+CONFIG_ARCH="arm"
+CONFIG_ARCH_BOARD="xidatong-arm32"
+CONFIG_ARCH_BOARD_XIDATONG_ARM32=y
+CONFIG_ARCH_CHIP="imxrt"
+CONFIG_ARCH_CHIP_IMXRT=y
+CONFIG_ARCH_CHIP_MIMXRT1052CVL5B=y
+CONFIG_ARCH_INTERRUPTSTACK=10240
+CONFIG_ARCH_STACKDUMP=y
+CONFIG_ARMV7M_DCACHE=y
+CONFIG_ARMV7M_DCACHE_WRITETHROUGH=y
+CONFIG_ARMV7M_ICACHE=y
+CONFIG_ARMV7M_USEBASEPRI=y
+CONFIG_BOARD_LOOPSPERMSEC=104926
+CONFIG_BUILTIN=y
+CONFIG_FAT_LCNAMES=y
+CONFIG_CLOCK_MONOTONIC=y
+CONFIG_FAT_LFN=y
+CONFIG_FS_FAT=y
+CONFIG_IDLETHREAD_STACKSIZE=2048
+CONFIG_EXAMPLES_HELLO=y
+CONFIG_IMXRT_GPIO_IRQ=y
+CONFIG_IMXRT_GPIO2_16_31_IRQ=y
+CONFIG_IMXRT_GPIO3_0_15_IRQ=y
+CONFIG_DEV_GPIO=y
+CONFIG_IMXRT_LPUART1=y
+CONFIG_IMXRT_USDHC1=y
+CONFIG_IMXRT_USDHC1_WIDTH_D1_D4=y
+CONFIG_INTELHEX_BINARY=y
+CONFIG_IOB_NBUFFERS=24
+CONFIG_IOB_NCHAINS=8
+CONFIG_LIBC_STRERROR=y
+CONFIG_LPUART1_SERIAL_CONSOLE=y
+CONFIG_MMCSD=y
+CONFIG_MMCSD_SDIO=y
+CONFIG_MM_IOB=y
+CONFIG_NSH_ARCHINIT=y
+CONFIG_NSH_BUILTIN_APPS=y
+CONFIG_NSH_CMDOPT_DD_STATS=y
+CONFIG_NSH_DISABLE_IFUPDOWN=y
+CONFIG_NSH_FILEIOSIZE=32768
+CONFIG_NSH_LINELEN=64
+CONFIG_NSH_READLINE=y
+CONFIG_RAM_SIZE=524288
+CONFIG_RAM_START=0x20200000
+CONFIG_RAW_BINARY=y
+CONFIG_SCHED_CHILD_STATUS=y
+CONFIG_SCHED_HAVE_PARENT=y
+CONFIG_SCHED_HPWORK=y
+CONFIG_SCHED_LPWORK=y
+CONFIG_SCHED_WAITPID=y
+CONFIG_SDIO_BLOCKSETUP=y
+CONFIG_SERIAL_TERMIOS=y
+CONFIG_START_DAY=14
+CONFIG_START_MONTH=3
+CONFIG_SYSTEM_CLE_CMD_HISTORY=y
+CONFIG_SYSTEM_COLOR_CLE=y
+CONFIG_FS_AUTOMOUNTER=y
+CONFIG_XIDATONG_ARM32_SDIO_AUTOMOUNT=y
+CONFIG_SYSTEM_NSH=y
+CONFIG_READLINE_CMD_HISTORY=y
+CONFIG_READLINE_CMD_HISTORY_LEN=100
+CONFIG_READLINE_CMD_HISTORY_LINELEN=120
+CONFIG_READLINE_TABCOMPLETION=y
+CONFIG_BOARDCTL_RESET=y
+CONFIG_MUSL_LIBC=y
+CONFIG_INIT_ENTRYPOINT="nsh_main"

Ubiquitous/Nuttx_Fusion_XiUOS/app_match_nuttx/apps/nshlib/Kconfig

@@ -667,6 +667,10 @@ config NSH_DISABLE_K210_FFT
 	bool "Disable the K210 fft device."
 	default n
 
+config NSH_DISABLE_MUSL_TEST
+	bool "Disable the musl test."
+	default n
+
 endmenu
 
 if MMCSD

Ubiquitous/Nuttx_Fusion_XiUOS/app_match_nuttx/apps/nshlib/nsh.h

@@ -1587,6 +1587,10 @@ int nsh_foreach_var(FAR struct nsh_vtbl_s *vtbl, nsh_foreach_var_t cb,
   int cmd_fft(FAR struct nsh_vtbl_s *vtbl, int argc, char **argv);
 #endif
 
+#if defined(CONFIG_MUSL_LIBC) && !defined(CONFIG_NSH_DISABLE_MUSL_TEST)
+  int cmd_musl(FAR struct nsh_vtbl_s *vtbl, int argc, char **argv);
+#endif
+
 #if defined(__cplusplus)
 }
 #endif

Ubiquitous/Nuttx_Fusion_XiUOS/app_match_nuttx/apps/nshlib/nsh_Applicationscmd.c

@@ -500,3 +500,13 @@ int cmd_fft(FAR struct nsh_vtbl_s *vtbl, int argc, char **argv)
     return OK;
 }
 #endif
+
+#if defined(CONFIG_MUSL_LIBC) && !defined(CONFIG_NSH_DISABLE_MUSL_TEST)
+extern void Testmusl(void);
+int cmd_musl(FAR struct nsh_vtbl_s *vtbl, int argc, char **argv)
+{
+    nsh_output(vtbl, "Hello, test musl!\n");
+    Testmusl();
+    return OK;
+}
+#endif

Ubiquitous/Nuttx_Fusion_XiUOS/app_match_nuttx/apps/nshlib/nsh_command.c

@@ -732,6 +732,10 @@ static const struct cmdmap_s g_cmdmap[] =
   { "fft",       cmd_fft,       1, 1, "[K210 fft function.]" },
 #endif
 
+#if defined(CONFIG_MUSL_LIBC) && !defined(CONFIG_NSH_DISABLE_MUSL_TEST)
+  { "testmusl",       cmd_musl,       1, 1, "[test musl function.]" },
+#endif
+
   { NULL,       NULL,         1, 1, NULL }
 };