feat(file-system): implement read and write FAT32 File System and basic shell

1 files changed, 223 insertions, 0 deletions

diff --git a/build/user/sh.sym b/build/user/sh.sym
new file mode 100644
index 0000000..f7cf8bd
--- /dev/null
+++ b/build/user/sh.sym
@@ -0,0 +1,223 @@
+0000000000000000 .text
+0000000000006020 .rodata
+00000000000069a0 .eh_frame
+0000000000007e38 .data
+0000000000008c98 .got
+0000000000008cb8 .got.plt
+0000000000008cc8 .init_array
+0000000000008cd0 .bss
+0000000000000000 .debug_info
+0000000000000000 .debug_abbrev
+0000000000000000 .debug_loclists
+0000000000000000 .debug_aranges
+0000000000000000 .debug_rnglists
+0000000000000000 .debug_line
+0000000000000000 .debug_str
+0000000000000000 .debug_line_str
+0000000000000000 .comment
+0000000000000000 .riscv.attributes
+0000000000000000 sh.cc
+0000000000008cd0 _ZZ4mainE3buf
+0000000000000000 entry.o
+0000000000000000 usys.o
+0000000000000000 stdio.c
+0000000000001190 stbsp__clamp_callback
+00000000000011de stbsp__count_clamp_callback
+00000000000011ea stbsp__real_to_str
+00000000000018be _in_char.part.0
+0000000000001904 _skip_space
+0000000000001978 _vscanf_core.constprop.0
+00000000000021e8 _out_char
+000000000000405c _vprintf_core.constprop.0.isra.0
+0000000000007f18 stbsp__digitpair
+0000000000007fe4 stbsp__period
+0000000000007fe5 stbsp__comma
+0000000000007fe8 hexu.1
+0000000000008000 hex.0
+0000000000008018 _stderr
+0000000000008438 _stdout
+0000000000008858 _stdin
+0000000000006508 stbsp__bot
+00000000000065c0 stbsp__negbot
+0000000000006670 stbsp__negboterr
+0000000000006720 stbsp__negtop
+0000000000006788 stbsp__negtoperr
+00000000000067f0 stbsp__top
+0000000000006858 stbsp__toperr
+00000000000068c0 stbsp__powten
+0000000000000000 stdlib.c
+000000000000526a strtoull.part.0
+0000000000008c90 next
+0000000000008d3c __atexit_func_count
+0000000000008d40 __atexit_funcs
+0000000000008e40 freep
+0000000000008e48 base
+0000000000000000 string.c
+0000000000008e58 olds.0
+0000000000000000 cxx.cc
+0000000000000000 iostream.cpp
+0000000000005ff0 _GLOBAL__sub_I__ZSt3cin
+0000000000008c98 _GLOBAL_OFFSET_TABLE_
+0000000000000324 _ZN11PipeCommand3runEv
+0000000000005b8a strcpy
+00000000000048fa printf
+0000000000008c78 stdout
+0000000000006964 STDOUT_FD
+0000000000005240 ungetc
+0000000000005fb2 strerror
+0000000000005af0 memmove
+00000000000048a4 snprintf
+0000000000001118 mknod
+0000000000005742 atol
+0000000000005450 getenv
+0000000000005fd8 _Znwm
+0000000000000222 _ZN11PipeCommandD0Ev
+0000000000008d38 errno
+00000000000059a2 labs
+000000000000591c bsearch
+0000000000001150 getpid
+000000000000583e qsort
+0000000000004b38 fscanf
+0000000000004daa fgets
+0000000000008e70 _ZSt4cerr
+0000000000005b2c memcpy
+000000000000018c _ZN11ExecCommand3runEv
+0000000000000256 _ZN11ListCommandD0Ev
+0000000000005454 system
+0000000000005220 feof
+00000000000054ce malloc
+0000000000001160 sleep
+000000000000005c _Z6getcmdPci
+000000000000485a vsnprintf
+000000000000565e strtoll
+0000000000005708 strtoul
+0000000000005a54 wctomb
+0000000000000754 _ZN6Parser10parse_pipeEPPcS0_
+0000000000005aa0 wcstombs
+00000000000001c4 _ZN11ExecCommandD0Ev
+0000000000004ac2 fflush
+0000000000005a62 mbstowcs
+0000000000001180 lseek
+0000000000005fe0 _ZdlPv
+0000000000005444 abort
+000000000000572c strtol
+00000000000010e0 pipe
+0000000000007f10 SYMBOLS
+0000000000005a22 mblen
+0000000000005cde strrchr
+0000000000007e90 _ZTV11PipeCommand
+0000000000005594 calloc
+000000000000574e strtod
+0000000000001178 disk_test
+00000000000010f0 write
+0000000000005828 atof
+0000000000001128 fstat
+0000000000004b06 fprintf
+0000000000001100 kill
+00000000000000c0 _ZN11PipeCommandD2Ev
+0000000000005bce strcat
+0000000000000142 _ZN12RedirCommand3runEv
+0000000000000b84 _ZN6Parser10parse_lineEPPcS0_
+0000000000001140 chdir
+0000000000005128 fseek
+0000000000003ff8 stbsp_vsprintf
+0000000000001108 exec
+0000000000005b52 memchr
+0000000000008c80 stdin
+00000000000010d8 wait
+0000000000003f12 stbsp_vsnprintf
+00000000000010be _start
+000000000000522a ferror
+0000000000005cf6 strstr
+00000000000059ec rand
+00000000000010e8 read
+0000000000005da2 strlcpy
+00000000000001cc _ZN12RedirCommandD0Ev
+0000000000005c7e strncmp
+00000000000022bc stbsp_set_separators
+0000000000005fe8 _ZdlPvm
+0000000000005b9c strncpy
+0000000000001120 unlink
+00000000000055dc realloc
+0000000000000128 _ZN11BackCommandD1Ev
+0000000000005f22 strtok
+0000000000005b2e memcmp
+00000000000010d0 fork
+0000000000004934 sscanf
+0000000000005c00 strncat
+0000000000004e86 fread
+0000000000001158 sbrk
+00000000000000f4 _ZN11ListCommandD1Ev
+0000000000005d5e strdup
+0000000000007e40 _ZTV11ExecCommand
+0000000000001168 uptime
+000000000000563a strtoull
+0000000000003ee8 stbsp_sprintf
+0000000000004996 fopen
+0000000000005ad8 memset
+0000000000000e62 main
+000000000000519c ftell
+0000000000005a14 srand
+0000000000005df8 strlcat
+0000000000005234 clearerr
+0000000000005fe4 _ZdaPv
+0000000000004a5a fclose
+00000000000000a8 _ZN12RedirCommandD2Ev
+000000000000001c _Z13fork_or_panicv
+0000000000001170 putc
+0000000000005c46 strcmp
+0000000000001188 shutdown
+0000000000001148 dup
+0000000000000128 _ZN11BackCommandD2Ev
+00000000000001f8 _ZN11BackCommandD0Ev
+0000000000004d14 fgetc
+0000000000004006 sprintf
+000000000000582c strtof
+00000000000053ea atexit
+0000000000005eac strcspn
+00000000000000c0 _ZN11PipeCommandD1Ev
+0000000000003fd8 stbsp_snprintf
+00000000000000f4 _ZN11ListCommandD2Ev
+0000000000008e60 _ZSt3cin
+0000000000004964 scanf
+0000000000008c88 stderr
+00000000000002d8 _ZN11ListCommand3runEv
+0000000000000140 _ZN11ExecCommandD1Ev
+00000000000059cc ldiv
+0000000000007e68 _ZTV12RedirCommand
+0000000000004b6a fputc
+0000000000005fdc _Znam
+00000000000059dc lldiv
+0000000000004fa0 fwrite
+0000000000000140 _ZN11ExecCommandD2Ev
+00000000000051c8 rewind
+0000000000007f08 WHITESPACE
+000000000000041a _ZN6Parser12parse_redirsEP7CommandPPcS2_
+0000000000007eb8 _ZTV11ListCommand
+0000000000008e68 _ZSt4cout
+0000000000001130 link
+000000000000540e exit
+00000000000010c8 sys_exit
+00000000000059ac llabs
+0000000000000000 _Z5panicPKc
+000000000000572e atoi
+0000000000006960 STDERR_FD
+0000000000007ee0 _ZTV11BackCommand
+0000000000005e78 strspn
+000000000000028a _ZN11BackCommand3runEv
+0000000000005b70 strlen
+00000000000022ce stbsp_vsprintfcb
+0000000000001110 open
+0000000000006968 STDIN_FD
+0000000000005748 atoll
+00000000000059b6 div
+0000000000005998 abs
+0000000000005cc6 strchr
+0000000000004c2e fputs
+0000000000005fec _ZdaPvm
+0000000000001138 mkdir
+00000000000000a8 _ZN12RedirCommandD1Ev
+00000000000010f8 close
+0000000000005a36 mbtowc
+0000000000005eec strpbrk
+0000000000005458 free