Add uthash.h and revise some text

- Included uthash.h header file in the repository
- Eliminates the need for system-wide uthash-dev installation
- Ensures consistent builds across all environments

Besides, I revise some description of reeadme to be clearer.
- folder -> directory
And minimize the necessary changes in linux.config.

Author: MikazukiHikari

Makefile

@@ -44,10 +44,10 @@ endif
 # virtio-fs
 ENABLE_VIRTIOFS ?= 1
 $(call set-feature, VIRTIOFS)
-MOUNT_FOLDER ?= ./shared
+MOUNT_DIRECTORY ?= ./shared
 ifeq ($(call has, VIRTIOFS), 1)
     OBJS_EXTRA += virtio-fs.o
-    OPTS += -s $(MOUNT_FOLDER)
+    OPTS += -s $(MOUNT_DIRECTORY)
 endif
 
 NETDEV ?= tap
@@ -206,14 +206,14 @@ ext4.img:
 	$(Q)dd if=/dev/zero of=$@ bs=4k count=600
 	$(Q)$(MKFS_EXT4) -F $@
 
-.PHONY: $(MOUNT_FOLDER)
-$(MOUNT_FOLDER):
+.PHONY: $(DIRECTORY)
+$(MOUNT_DIRECTORY):
 	@if [ ! -d $@ ]; then \
-		echo "Creating mount folder: $@"; \
+		echo "Creating mount directory: $@"; \
 		mkdir -p $@; \
 	fi
 
-check: $(BIN) minimal.dtb $(KERNEL_DATA) $(INITRD_DATA) $(DISKIMG_FILE) $(MOUNT_FOLDER)
+check: $(BIN) minimal.dtb $(KERNEL_DATA) $(INITRD_DATA) $(DISKIMG_FILE) $(MOUNT_DIRECTORY)
 	@$(call notice, Ready to launch Linux kernel. Please be patient.)
 	$(Q)./$(BIN) -k $(KERNEL_DATA) -c $(SMP) -b minimal.dtb -i $(INITRD_DATA) -n $(NETDEV) $(OPTS)
 

README.md

@@ -77,32 +77,32 @@ You can exit the emulator using: \<Ctrl-a x\>. (press Ctrl+A, leave it, afterwar
 ## Usage
 
 ```shell
-./semu -k linux-image [-b dtb-file] [-i initrd-image] [-d disk-image] [-s mount-folder]
+./semu -k linux-image [-b dtb-file] [-i initrd-image] [-d disk-image] [-s mount-directory]
 ```
 
 * `linux-image` is the path to the Linux kernel `Image`.
 * `dtb-file` is optional, as it specifies the user-specified device tree blob.
 * `initrd-image` is optional, as it specifies the user-specified initial RAM disk image.
 * `disk-image` is optional, as it specifies the path of a disk image in ext4 file system for the virtio-blk device.
-* `mount-folder` is optional, as it specifies the path of a folder you want to mount in host.
+* `mount-directory` is optional, as it specifies the path of a directory you want to mount in host.
 
-## Mount and unmount a folder in semu
+## Mount and unmount a directory in semu
 
-To mount the folder in semu:
+To mount the directory in semu:
 
 ```shell
-$ mount -t virtiofs myfs [mount-folder]
+$ mount -t virtiofs myfs [mount-directory]
 ```
 
-* `mount-folder` is the path of a folder you want to mount in semu.
+* `mount-directory` is the path of a directory you want to mount in semu.
 
-To unmount the folder in semu:
+To unmount the directory in semu:
 
 ```shell
-$ umount [mount-folder]
+$ umount [mount-directory]
 ```
 
-* `mount-folder` is the path of a folder you want to unmount in semu.
+* `mount-directory` is the path of a directory you want to unmount in semu.
 
 
 ## Build Linux kernel image and root file system

configs/linux.config

@@ -102,8 +102,7 @@ CONFIG_SRCU=y
 CONFIG_TINY_SRCU=y
 # end of RCU Subsystem
 
-CONFIG_IKCONFIG=y
-CONFIG_IKCONFIG_PROC=y
+# CONFIG_IKCONFIG is not set
 # CONFIG_IKHEADERS is not set
 CONFIG_LOG_BUF_SHIFT=16
 CONFIG_PRINTK_SAFE_LOG_BUF_SHIFT=12
@@ -948,10 +947,6 @@ CONFIG_SND=y
 CONFIG_SND_VIRTIO=y
 CONFIG_SND_HRTIMER=y
 
-CONFIG_CUSE=y
-CONFIG_FUSE_FS=y
-CONFIG_VIRTIO_FS=y
-
 #
 # HID support
 #
@@ -1262,7 +1257,9 @@ CONFIG_INOTIFY_USER=y
 # CONFIG_QUOTA is not set
 CONFIG_AUTOFS4_FS=y
 CONFIG_AUTOFS_FS=y
-
+CONFIG_CUSE=y
+CONFIG_FUSE_FS=y
+CONFIG_VIRTIO_FS=y
 # CONFIG_OVERLAY_FS is not set
 
 #

device.h

@@ -3,7 +3,9 @@
 #if SEMU_HAS(VIRTIONET)
 #include "netdev.h"
 #endif
-#include <uthash.h>
+#if SEMU_HAS(VIRTIOFS)
+#include "uthash.h"
+#endif
 #include "riscv.h"
 #include "virtio.h"
 

fuse.h

@@ -115,7 +115,7 @@ struct fuse_entry_out {
     uint64_t attr_valid;        // attr cache timeout (sec)
     uint32_t entry_valid_nsec;  // cache timeout (nsec)
     uint32_t attr_valid_nsec;   // attr cache timeout (nsec)
-    struct fuse_attr attr;      // file attributes (與 stat 結構相似)
+    struct fuse_attr attr;      // file attributes
 };
 
 struct fuse_dirent {