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-rw-r--r--Makefile26
-rw-r--r--include/stdint.h32
-rw-r--r--include/unistd.h143
-rw-r--r--libc/Makefile70
-rw-r--r--libc/arch/i386/crti.s14
-rw-r--r--libc/arch/i386/crtn.s7
-rw-r--r--libc/arch/i386/include/bits/types.h41
-rw-r--r--libc/arch/i386/make.config6
-rw-r--r--libc/init.c2
-rw-r--r--libc/unistd.c4
10 files changed, 345 insertions, 0 deletions
diff --git a/Makefile b/Makefile
new file mode 100644
index 0000000..373bc3c
--- /dev/null
+++ b/Makefile
@@ -0,0 +1,26 @@
+ROOT:=$(PWD)
+SYS_INCLUDE:=-I$(ROOT)/include
+SYS_ROOT?=$(ROOT)/sysroot
+export SYS_INCLUDE
+export SYS_ROOT
+export ROOT
+
+ARCH?=i386
+export ARCH
+
+SUBDIRS?=libc \
+
+.PHONY: all install clean
+
+all:
+ for d in $(SUBDIRS); do $(MAKE) -C $$d; done
+
+install:
+ install -d $(SYS_ROOT)/usr
+ install -d $(SYS_ROOT)/lib
+ install -d $(SYS_ROOT)/bin
+ install -d $(SYS_ROOT)/sbin
+ for d in $(SUBDIRS); do $(MAKE) -C $$d install; done
+
+clean:
+ for d in $(SUBDIRS); do $(MAKE) -C $$d clean; done
diff --git a/include/stdint.h b/include/stdint.h
new file mode 100644
index 0000000..4f6e71d
--- /dev/null
+++ b/include/stdint.h
@@ -0,0 +1,32 @@
+#ifndef STDINT_H
+#define STDINT_H
+
+#include <bits/types.h>
+
+#define INT8_MIN (-1-0x7F)
+#define INT16_MIN (-1-0x7FFF)
+#define INT32_MIN (-1-0x7FFFFFFF)
+#define INT64_MIN (-1-0x7FFFFFFFFFFFFFFF)
+
+#define INT8_MAX (0x7F)
+#define INT16_MAX (0x7FFF)
+#define INT32_MAX (0x7FFFFFFF)
+#define INT64_MAX (0x7FFFFFFFFFFFFFFF)
+
+#define UINT8_MAX (0xFF)
+#define UINT16_MAX (0xFFFF)
+#define UINT32_MAX (0xFFFFFFFF)
+#define UINT64_MAX (0xFFFFFFFFFFFFFFFF)
+
+#define INT_FAST8_MIN INT8_MIN
+#define INT_FAST64_MIN INT64_MIN
+
+#define INT_FAST8_MAX INT8_MAX
+#define INT_FAST64_MAX INT64_MAX
+
+#define INT_LEAST8_MIN INT8_MIN
+#define INT_LEAST16_MIN INT16_MIN
+#define INT_LEAST32_MIN INT32_MIN
+#define INT_LEAST64_MIN INT64_MIN
+
+#endif
diff --git a/include/unistd.h b/include/unistd.h
new file mode 100644
index 0000000..8c7eae4
--- /dev/null
+++ b/include/unistd.h
@@ -0,0 +1,143 @@
+#ifndef UNISTD_H
+#define UNISTD_H
+
+#include <sys/types.h>
+#include <stdint.h>
+#include <stddef.h>
+
+#define STDIN_FILENO 0
+#define STDOUT_FILENO 1
+#define STDERR_FILENO 2
+
+#define SEEK_SET 0
+#define SEEK_CUR 1
+#define SEEK_END 2
+#define SEEK_DATA 3
+#define SEEK_HOLE 4
+
+#define NULL ((void*)0)
+
+#define F_OK 0
+#define R_OK 4
+#define W_OK 2
+#define X_OK 1
+
+int pipe();
+int pipe2();
+int close(int fildes);
+int dup(int fildes);
+int dup2();
+int dup3();
+off_t lseek();
+int fsync();
+int fdatasync();
+
+ssize_t read(int fildes, void *buf, size_t nbyte);
+ssize_t write(int fildes, const void *buf, size_t nbyte);
+ssize_t pread(int fildes, void *buf, size_t nbyte, off_t offset);
+ssize_t pwrite(int fildes, const void *buf, size_t nbyte, off_t offset);
+
+int chown(const char *path, uid_t owner, gid_t group);
+int fchown(int fildes, uid_t owner, gid_t group);
+int lchown(const char *path, uid_t owner, gid_t group);
+int fchownat(int fildes, const char *path, uid_t owner, gid_t group);
+
+int link(const char *target, const char *lpath);
+int linkat(int target_fd, const char *tpath, int link_fd, const char *lpath);
+int symlink(const char *target, const char *lpath);
+int symlinkat(const char *target, int fildes, const char *lpath);
+ssize_t readlink(const char* __restrict path, char* __restrict buf, size_t bufsz);
+ssize_t readlinkat(int fildes, const char* __restrict path, char* __restrict buf, size_t bufsz);
+int unlink(const char *lpath);
+int unlinkat(int fildes, const char *lpath, int flag);
+int rmdir(const char *path);
+int truncate(const char *path, off_t length);
+int ftruncate(int fildes, off_t length);
+
+int access(const char *path, int amode);
+int faccessat(int fildes, const char *path, int amode, int flag);
+
+int chdir(const char *path);
+int fchdir(int fildes);
+char* getcwd(char *buf, size_t bufsz);
+
+unsigned int alarm(unsigned int seconds);
+unsigned int sleep(unsigned int seconds);
+unsigned int ualarm(useconds_t usec);
+unsigned int usleep(useconds_t usec);
+int pause(void);
+
+pid_t fork(void);
+pid_t vfork(void);
+void _exit(int status);
+int execve(const char *pathname, char* const argv[], char* const envp[]);
+int execv(const char *pathname, char* const argv[]);
+int execle(const char *pathname, const char *argv, ...);
+int execl(const char *pathname, const char *argv, ...);
+int execvp(const char *pathname, char* const argv[]);
+int execvpe(const char *pathname, char* const argv[], char* const envp[]);
+int execlp(const char *pathname, char* const argv[], ...);
+int fexecve(int fildes, char* const argv[], char* const envp[]);
+
+pid_t getpid(void);
+pid_t getppid(void);
+pid_t getpgrp(void);
+pid_t getpgid(pid_t);
+int setpgid(pid_t pid, pid_t pgid);
+pid_t setsid(void);
+pid_t getsid(pid_t pid);
+char* ttyname(int fildes);
+int ttyname_r(int fildes, char *buf, size_t bufsz);
+int isatty(int fildes);
+pid_t tcgetpgrp(int fildes);
+
+uid_t getuid(void);
+uid_t geteuid(void);
+gid_t getgid(void);
+gid_t getegid(void);
+int getgroups(int gidsetsize, gid_t grouplist[]);
+int setuid(uid_t uid);
+int seteuid(uid_t euid);
+int setgid(gid_t gid);
+int setegid(gid_t egid);
+
+char* getlogin(void);
+int getlogin_r(char *buf, size_t bufsz);
+char* ctermid(char *buf);
+
+long int pathconf(const char *path, int name);
+long int fpathconf(int fildes, int name);
+long int sysconf(int name);
+size_t confstr(int name, char *buf, size_t bufsz);
+
+int setreuid(uid_t ruid, uid_t euid);
+int setregid(gid_t rgid, gid_t egid);
+int lockf(int fildes, int op, off_t length);
+
+int nice(int incr);
+void sync(void);
+pid_t setpgrp(void);
+void swab(const void* __restrict from, void* __restrict to, ssize_t n);
+
+int brk(void *addr);
+void* sbrk(intptr_t incr);
+
+int vhangup(void);
+int chroot(const char *path);
+int getpagesize(void);
+int getdtablesize(void);
+
+int gethostname(char *buf, size_t bufsz);
+int sethostname(const char *name, size_t len);
+int getdomainname(char *buf, size_t bufsz);
+int setdomainname(const char *name, size_t len);
+int daemon(int nochdir, int noclose);
+
+char* getusershell(void);
+void setusershell(void);
+void endusershell(void);
+
+int acct(const char *path);
+int getentropy(void *buffer, size_t bufsz);
+
+#endif
diff --git a/libc/Makefile b/libc/Makefile
new file mode 100644
index 0000000..cc7fa8d
--- /dev/null
+++ b/libc/Makefile
@@ -0,0 +1,70 @@
+INCLUDE?=$(SYS_INCLUDE)
+CFLAGS?=-fPIC
+LDFLAGS?=-nostdlib -shared
+LIBS?=-lgcc
+
+# -- Do not edit below this line --
+
+CC:=i686-boxos-gcc
+VERSION:="$(shell git describe --abbrev=4 --dirty --always --tags)"
+INCLUDE:=$(INCLUDE)
+CFLAGS:=$(CFLAGS) -Wall -Wextra -DVERSION=\"$(VERSION)\" -ggdb
+LDFLAGS:=$(LDFLAGS)
+LIBS:=$(LIBS)
+
+ARCHDIR=arch/$(ARCH)
+
+include $(ARCHDIR)/make.config
+
+CFLAGS:=$(CFLAGS) $(LIBC_ARCH_CFLAGS)
+LDFLAGS:=$(LDFLAGS) $(LIBC_ARCH_LDFLAGS)
+LIBS:=$(LIBS) $(LIBC_ARCH_LIBS)
+
+LIBC=libc.so
+
+LIBC_OBJS=$(LIBC_ARCH_OBJS) \
+ init.o \
+ unistd.o \
+
+OBJS=$(ARCHDIR)/crti.o \
+ $(LIBC_OBJS) \
+ $(ARCHDIR)/crtn.o \
+
+LINK_LIST=$(LDFLAGS) \
+ $(OBJS) \
+ $(LIBS) \
+
+.PHONY: all clean install install-headers
+.SUFFIXES: .o .c .s
+
+all: $(LIBC)
+
+$(LIBC): $(OBJS)
+ @$(CC) -o $@ $(LINK_LIST)
+ @echo [LD] $@
+
+.c.o:
+ @$(CC) -MD -c $< -o $@ $(CFLAGS) $(INCLUDE)
+ @echo [CC] $@
+
+.s.o:
+ @$(CC) -MD -c $< -o $@ $(CFLAGS) $(INCLUDE)
+ @echo [AS] $@
+
+install: install-headers
+ install -m 755 $(LIBC) $(SYS_ROOT)/lib
+
+install-headers:
+ install -d $(SYS_ROOT)/usr/include
+ install -d $(SYS_ROOT)/usr/include/sys
+ install -d $(SYS_ROOT)/usr/include/arpa
+ for f in $(ROOT)/include/*; do install -m 644 "$$f" $(SYS_ROOT)/usr/include/; done
+ for f in $(ROOT)/include/sys/*; do install -m 644 "$$f" $(SYS_ROOT)/usr/include/sys/; done
+ for f in $(ROOT)/include/arpa/*; do install -m 644 "$$f" $(SYS_ROOT)/usr/include/arpa/; done
+
+clean:
+ $(RM) $(LIBC)
+ $(RM) $(OBJS) *.o */*.o */*/*.o
+ $(RM) $(OBJS:.o=.d) *.d */*.d */*/*.d
+
+-include $(OBJS:.o=.d)
diff --git a/libc/arch/i386/crti.s b/libc/arch/i386/crti.s
new file mode 100644
index 0000000..906414b
--- /dev/null
+++ b/libc/arch/i386/crti.s
@@ -0,0 +1,14 @@
+.section .init
+
+.global _init
+.type _init, @function
+_init:
+ pushl %ebp
+ movl %esp, %ebp
+
+.section .fini
+
+.global _fini
+_fini:
+ pushl %ebp
+ movl %esp, %ebp
diff --git a/libc/arch/i386/crtn.s b/libc/arch/i386/crtn.s
new file mode 100644
index 0000000..447afb1
--- /dev/null
+++ b/libc/arch/i386/crtn.s
@@ -0,0 +1,7 @@
+.section .init
+ popl %ebp
+ ret
+
+.section .fini
+ popl %ebp
+ ret
diff --git a/libc/arch/i386/include/bits/types.h b/libc/arch/i386/include/bits/types.h
new file mode 100644
index 0000000..99946ff
--- /dev/null
+++ b/libc/arch/i386/include/bits/types.h
@@ -0,0 +1,41 @@
+#ifndef BITS_TYPES_H
+
+typedef unsigned char __u_char;
+typedef unsigned short __u_short;
+typedef unsigned int __u_int;
+typedef unsigned long __u_long;
+
+typedef signed char __int8_t;
+typedef signed short int __int16_t;
+typedef signed int __int32_t;
+typedef signed long __int64_t;
+
+typedef unsigned char __uint8_t;
+typedef unsigned short int __uint16_t;
+typedef unsigned int __uint32_t;
+typedef unsigned long __uint64_t;
+
+typedef __int8_t __int_least8_t;
+typedef __int16_t __int_least16_t;
+typedef __int32_t __int_least32_t;
+typedef __int64_t __int_least64_t;
+
+typedef __uint8_t __uint_least8_t;
+typedef __uint16_t __uint_least16_t;
+typedef __uint32_t __uint_least32_t;
+typedef __uint64_t __uint_least64_t;
+
+typedef __int8_t int8_t;
+typedef __int16_t int16_t;
+typedef __int32_t int32_t;
+typedef __int64_t int64_t;
+
+typedef __uint8_t uint8_t;
+typedef __uint16_t uint16_t;
+typedef __uint32_t uint32_t;
+typedef __uint64_t uint64_t;
+
+typedef __int32_t intptr_t;
+typedef __uint32_t uintptr_t;
+
+#endif
diff --git a/libc/arch/i386/make.config b/libc/arch/i386/make.config
new file mode 100644
index 0000000..25c1254
--- /dev/null
+++ b/libc/arch/i386/make.config
@@ -0,0 +1,6 @@
+LIBC_ARCH_INCLUDE=$(ARCHDIR)/include
+LIBC_ARCH_CFLAGS=-I$(LIBC_ARCH_INCLUDE)
+LIBC_ARCH_LDFLAGS=
+LIBC_ARCH_LIBS=
+
+LIBC_ARCH_OBJS=
diff --git a/libc/init.c b/libc/init.c
new file mode 100644
index 0000000..b6c636b
--- /dev/null
+++ b/libc/init.c
@@ -0,0 +1,2 @@
+void libc_init(void) {
+}
diff --git a/libc/unistd.c b/libc/unistd.c
new file mode 100644
index 0000000..5cca686
--- /dev/null
+++ b/libc/unistd.c
@@ -0,0 +1,4 @@
+#include <unistd.h>
+
+void _exit(int status) {
+}
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