调整user下libs的libc目录结构 (#103)

* 调整user下libs的libc目录结构

* 修正.gitignore文件的问题

* 修复无法编译的问题

Co-authored-by: longjin <longjin@RinGoTek.cn>

user/libs/libc/.cargo/config.toml

@@ -0,0 +1,11 @@
+[build]
+target = "src/arch/x86_64/x86_64-unknown-none.json"
+
+[unstable]
+build-std = ["core", "compiler_builtins", "alloc"]
+build-std-features = ["compiler-builtins-mem"]
+
+[target.'cfg(target_os = "none")']
+runner = "bootimage runner"
+
+[env]

user/libs/libc/.gitignore

@@ -0,0 +1,2 @@
+target/
+Cargo.lock

user/libs/libc/Cargo.toml

@@ -0,0 +1,18 @@
+[package]
+name = "libc"
+version = "0.1.0"
+edition = "2021"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+[lib]
+crate-type = ["staticlib"]
+
+# 运行时依赖项
+[dependencies]
+x86_64 = "0.14.10"
+
+# 构建时依赖项
+[build-dependencies]
+bindgen = "0.61.0"
+
+

user/libs/libc/Makefile

@@ -1,48 +1,7 @@
-all: libc
 
-CFLAGS += -I .
+all: 
+	$(MAKE) -C src all
 
-libc_sub_dirs=math sys
-
-ifeq ($(ARCH), __x86_64__)
-libc_sub_dirs += sysdeps/x86_64
-endif
-
-
-libc: unistd.o fcntl.o malloc.o errno.o printf.o stdlib.o ctype.o string.o dirent.o time.o
-	@list='$(libc_sub_dirs)'; for subdir in $$list; do \
-    		echo "make all in $$subdir";\
-    		cd $$subdir;\
-    		$(MAKE) all CFLAGS="$(CFLAGS) -I $(shell pwd)";\
-    		cd ..;\
-	done
-
-unistd.o: unistd.c
-	$(CC) $(CFLAGS) -c unistd.c -o unistd.o
-
-fcntl.o: fcntl.c
-	$(CC) $(CFLAGS) -c fcntl.c -o fcntl.o
-
-malloc.o: malloc.c
-	$(CC) $(CFLAGS) -c malloc.c -o malloc.o
-
-errno.o: errno.c
-	$(CC) $(CFLAGS) -c errno.c -o errno.o
-
-printf.o: printf.c
-	$(CC) $(CFLAGS) -c printf.c -o printf.o
-
-stdlib.o: stdlib.c
-	$(CC) $(CFLAGS) -c stdlib.c -o stdlib.o
-	
-ctype.o: ctype.c
-	$(CC) $(CFLAGS) -c ctype.c -o ctype.o
-
-string.o: string.c
-	$(CC) $(CFLAGS) -c string.c -o string.o
-
-dirent.o: dirent.c
-	$(CC) $(CFLAGS) -c dirent.c -o dirent.o
-
-time.o: time.c
-	$(CC) $(CFLAGS) -c time.c -o time.o
+clean:
+	rm -f Cargo.lock
+	$(MAKE) -C src clean

user/libs/libc/src/Makefile

@@ -0,0 +1,63 @@
+GARBAGE_PATTERNS := *.o *.s~ *.s *.S~ *.c~ *.h~ kernel
+GARBAGE := $(foreach DIR,$(DIRS),$(addprefix $(DIR)/,$(GARBAGE_PATTERNS)))
+
+all: libc
+
+CFLAGS += -I .
+
+libc_sub_dirs=math sys
+
+ifeq ($(ARCH), __x86_64__)
+libc_sub_dirs += sysdeps/x86_64
+endif
+
+clean:
+	cargo clean
+	rm -rf $(GARBAGE)
+	@list='$(libc_sub_dirs)'; for subdir in $$list; do \
+		echo "Clean in dir: $$subdir";\
+		cd $$subdir && $(MAKE) clean;\
+		cd .. ;\
+	done
+
+libc: unistd.o fcntl.o malloc.o errno.o printf.o stdlib.o ctype.o string.o dirent.o time.o libc_rust
+	@list='$(libc_sub_dirs)'; for subdir in $$list; do \
+    		echo "make all in $$subdir";\
+    		cd $$subdir;\
+    		$(MAKE) all CFLAGS="$(CFLAGS) -I $(shell pwd)";\
+    		cd ..;\
+	done
+
+unistd.o: unistd.c
+	$(CC) $(CFLAGS) -c unistd.c -o unistd.o
+
+fcntl.o: fcntl.c
+	$(CC) $(CFLAGS) -c fcntl.c -o fcntl.o
+
+malloc.o: malloc.c
+	$(CC) $(CFLAGS) -c malloc.c -o malloc.o
+
+errno.o: errno.c
+	$(CC) $(CFLAGS) -c errno.c -o errno.o
+
+printf.o: printf.c
+	$(CC) $(CFLAGS) -c printf.c -o printf.o
+
+stdlib.o: stdlib.c
+	$(CC) $(CFLAGS) -c stdlib.c -o stdlib.o
+	
+ctype.o: ctype.c
+	$(CC) $(CFLAGS) -c ctype.c -o ctype.o
+
+string.o: string.c
+	$(CC) $(CFLAGS) -c string.c -o string.o
+
+dirent.o: dirent.c
+	$(CC) $(CFLAGS) -c dirent.c -o dirent.o
+
+time.o: time.c
+	$(CC) $(CFLAGS) -c time.c -o time.o
+
+libc_rust:
+	rustup default nightly
+	cargo +nightly build --release --target ./x86_64-unknown-none.json

user/libs/libc/src/ctype.c

@@ -1,4 +1,4 @@
-#include <libc/ctype.h>
+#include <libc/src/ctype.h>
 
 
 int isprint(int c)

user/libs/libc/src/ctype.h

@@ -1,10 +1,10 @@
 #pragma once
 
-#include <libc/sys/types.h>
+#include <libc/src/sys/types.h>
 
 #pragma once
 
-#include <libc/__libc__.h>
+#include <libc/src/__libc__.h>
 
 
 int isalnum(int c);

user/libs/libc/src/dirent.h

@@ -1,5 +1,5 @@
 #pragma once
-#include <libc/sys/types.h>
+#include <libc/src/sys/types.h>
 
 
 /**

user/libs/libc/src/fcntl.c

@@ -1,4 +1,4 @@
-#include <libc/fcntl.h>
+#include <libc/src/fcntl.h>
 #include <libsystem/syscall.h>
 
 /**

user/libs/libc/src/lib.rs

@@ -0,0 +1,21 @@
+#![no_std] // <1>
+#![no_main] // <1>
+#![feature(core_intrinsics)] // <2>
+#![feature(alloc_error_handler)]
+#![feature(panic_info_message)]
+
+#[allow(non_upper_case_globals)]
+#[allow(non_camel_case_types)]
+#[allow(non_snake_case)]
+
+
+use core::panic::PanicInfo;
+#[panic_handler]
+fn panic(_info: &PanicInfo) -> ! {
+    loop {}
+}
+
+#[no_mangle]
+pub extern "C" fn scanf() {
+
+}

user/libs/libc/src/malloc.c

@@ -1,9 +1,9 @@
-#include <libc/stdlib.h>
+#include <libc/src/stdlib.h>
 #include <libsystem/syscall.h>
-#include <libc/stddef.h>
-#include <libc/unistd.h>
-#include <libc/errno.h>
-#include <libc/stdio.h>
+#include <libc/src/stddef.h>
+#include <libc/src/unistd.h>
+#include <libc/src/errno.h>
+#include <libc/src/stdio.h>
 
 #define PAGE_4K_SHIFT 12
 #define PAGE_2M_SHIFT 21

user/libs/libc/src/math/fabs.c

@@ -1,7 +1,6 @@
-#include <libc/math.h>
-#include <libc/sys/types.h>
+#include <libc/src/math.h>
+#include <libc/src/sys/types.h>
 #include "libm.h"
-
 double fabs(double x)
 {
     union

user/libs/libc/src/math/libm.h

@@ -1,5 +1,5 @@
 #pragma once
-#include <libc/sys/types.h>
+#include <libc/src/sys/types.h>
 
 // ===== 描述long double 的数据比特结构
 #if __LDBL_MANT_DIG__ == 53 && __LDBL_MAX_EXP__ == 1024

user/libs/libc/src/math/pow.c

@@ -1,5 +1,5 @@
-#include <libc/math.h>
-#include <libc/stddef.h>
+#include <libc/src/math.h>
+#include <libc/src/stddef.h>
 
 int64_t pow(int64_t x, int y)
 {

user/libs/libc/src/printf.c

@@ -1,9 +1,9 @@
 #include "printf.h"
 
-#include <libc/math.h>
-#include <libc/stdio.h>
-#include <libc/stdlib.h>
-#include <libc/string.h>
+#include <libc/src/math.h>
+#include <libc/src/stdio.h>
+#include <libc/src/stdlib.h>
+#include <libc/src/string.h>
 #include <libsystem/syscall.h>
 
 static char *write_num(char *str, uint64_t num, int base, int field_width, int precision, int flags);

user/libs/libc/src/stddef.h

@@ -1,6 +1,6 @@
 #pragma once
 
-#include <libc/sys/types.h>
+#include <libc/src/sys/types.h>
 
 #ifdef __cplusplus
    #define NULL 0

user/libs/libc/src/stdio.h

@@ -1,6 +1,6 @@
 #pragma once
 
-#include <libc/sys/types.h>
+#include <libc/src/sys/types.h>
 #include <stdarg.h>
 
 // 字体颜色的宏定义

user/libs/libc/src/stdlib.c

@@ -1,6 +1,6 @@
-#include <libc/unistd.h>
-#include <libc/stdlib.h>
-#include <libc/ctype.h>
+#include <libc/src/unistd.h>
+#include <libc/src/stdlib.h>
+#include <libc/src/ctype.h>
 #include <libsystem/syscall.h>
 
 int abs(int i)

user/libs/libc/src/stdlib.h

@@ -1,5 +1,5 @@
 #pragma once
-#include <libc/sys/types.h>
+#include <libc/src/sys/types.h>
 
 /**
  * @brief 获取一块堆内存

user/libs/libc/src/string.h

@@ -1,6 +1,6 @@
 #pragma once
 
-#include <libc/sys/types.h>
+#include <libc/src/sys/types.h>
 
 void *memset(void *dst, unsigned char C, uint64_t size);
 /**

user/libs/libc/src/sys/stat.h

@@ -1,5 +1,5 @@
 #pragma once
-#include <libc/sys/types.h>
+#include <libc/src/sys/types.h>
 
 /**
  * @brief 系统内存信息结构体（单位：字节）

user/libs/libc/src/sysdeps/x86_64/elf/start.c

@@ -1,6 +1,6 @@
 
-#include <libc/stdio.h>
-#include <libc/stdlib.h>
+#include <libc/src/stdio.h>
+#include <libc/src/stdlib.h>
 
 extern int main(int, char **);
 

user/libs/libc/src/unistd.c

@@ -1,10 +1,10 @@
-#include <libc/unistd.h>
+#include <libc/src/unistd.h>
 #include <libsystem/syscall.h>
-#include <libc/errno.h>
-#include <libc/stdio.h>
-#include <libc/stddef.h>
-#include <libc/string.h>
-#include <libc/fcntl.h>
+#include <libc/src/errno.h>
+#include <libc/src/stdio.h>
+#include <libc/src/stddef.h>
+#include <libc/src/string.h>
+#include <libc/src/fcntl.h>
 
 /**
  * @brief 关闭文件接口

user/libs/libc/src/unistd.h

@@ -1,6 +1,6 @@
 #pragma once
 #include <stdint.h>
-#include <libc/sys/types.h>
+#include <libc/src/sys/types.h>
 
 /**
  * @brief 关闭文件接口

user/libs/libc/src/x86_64-unknown-none.json

@@ -0,0 +1,15 @@
+{
+  "llvm-target": "x86_64-unknown-none",
+  "data-layout": "e-m:e-i64:64-f80:128-n8:16:32:64-S128",
+  "arch": "x86_64",
+  "target-endian": "little",
+  "target-pointer-width": "64",
+  "target-c-int-width": "32",
+  "os": "none",
+  "linker": "rust-lld",
+  "linker-flavor": "ld.lld",
+  "executables": true,
+  "features": "-mmx,-sse,+soft-float",
+  "disable-redzone": true,
+  "panic-strategy": "abort"
+}