Inital commit

12 files changed, 138 insertions, 0 deletions

diff --git a/linux/lib/Makefile b/linux/lib/Makefile
new file mode 100644
index 0000000..a06698d
--- /dev/null
+++ b/linux/lib/Makefile
@@ -0,0 +1,44 @@
+#
+# Makefile for some libs needed in the kernel.
+#
+# Note! Dependencies are done automagically by 'make dep', which also
+# removes any old dependencies. DON'T put your own dependencies here
+# unless it's something special (ie not a .c file).
+#
+
+AR	=gar
+AS	=gas
+LD	=gld
+LDFLAGS	=-s -x
+CC	=gcc
+CFLAGS	=-Wall -O -fstrength-reduce -fomit-frame-pointer -fcombine-regs \
+	-finline-functions -mstring-insns -nostdinc -I../include
+CPP	=gcc -E -nostdinc -I../include
+
+.c.s:
+	$(CC) $(CFLAGS) \
+	-S -o $*.s $<
+.s.o:
+	$(AS) -c -o $*.o $<
+.c.o:
+	$(CC) $(CFLAGS) \
+	-c -o $*.o $<
+
+OBJS  = ctype.o _exit.o open.o close.o errno.o write.o dup.o setsid.o \
+	execve.o wait.o string.o
+
+lib.a: $(OBJS)
+	$(AR) rcs lib.a $(OBJS)
+	sync
+
+clean:
+	rm -f core *.o *.a tmp_make
+	for i in *.c;do rm -f `basename $$i .c`.s;done
+
+dep:
+	sed '/\#\#\# Dependencies/q' < Makefile > tmp_make
+	(for i in *.c;do echo -n `echo $$i | sed 's,\.c,\.s,'`" "; \
+		$(CPP) -M $$i;done) >> tmp_make
+	cp tmp_make Makefile
+
+### Dependencies:
diff --git a/linux/lib/_exit.c b/linux/lib/_exit.c
new file mode 100644
index 0000000..44a74e1
--- /dev/null
+++ b/linux/lib/_exit.c
@@ -0,0 +1,7 @@
+#define __LIBRARY__
+#include <unistd.h>
+
+volatile void _exit(int exit_code)
+{
+	__asm__("int $0x80"::"a" (__NR_exit),"b" (exit_code));
+}
diff --git a/linux/lib/close.c b/linux/lib/close.c
new file mode 100644
index 0000000..182d7eb
--- /dev/null
+++ b/linux/lib/close.c
@@ -0,0 +1,4 @@
+#define __LIBRARY__
+#include <unistd.h>
+
+_syscall1(int,close,int,fd)
diff --git a/linux/lib/ctype.c b/linux/lib/ctype.c
new file mode 100644
index 0000000..bf58aac
--- /dev/null
+++ b/linux/lib/ctype.c
@@ -0,0 +1,29 @@
+#include <ctype.h>
+
+char _ctmp;
+unsigned char _ctype[] = {0x00,			/* EOF */
+_C,_C,_C,_C,_C,_C,_C,_C,			/* 0-7 */
+_C,_C|_S,_C|_S,_C|_S,_C|_S,_C|_S,_C,_C,		/* 8-15 */
+_C,_C,_C,_C,_C,_C,_C,_C,			/* 16-23 */
+_C,_C,_C,_C,_C,_C,_C,_C,			/* 24-31 */
+_S|_SP,_P,_P,_P,_P,_P,_P,_P,			/* 32-39 */
+_P,_P,_P,_P,_P,_P,_P,_P,			/* 40-47 */
+_D,_D,_D,_D,_D,_D,_D,_D,			/* 48-55 */
+_D,_D,_P,_P,_P,_P,_P,_P,			/* 56-63 */
+_P,_U|_X,_U|_X,_U|_X,_U|_X,_U|_X,_U|_X,_U,	/* 64-71 */
+_U,_U,_U,_U,_U,_U,_U,_U,			/* 72-79 */
+_U,_U,_U,_U,_U,_U,_U,_U,			/* 80-87 */
+_U,_U,_U,_P,_P,_P,_P,_P,			/* 88-95 */
+_P,_L|_X,_L|_X,_L|_X,_L|_X,_L|_X,_L|_X,_L,	/* 96-103 */
+_L,_L,_L,_L,_L,_L,_L,_L,			/* 104-111 */
+_L,_L,_L,_L,_L,_L,_L,_L,			/* 112-119 */
+_L,_L,_L,_P,_P,_P,_P,_C,			/* 120-127 */
+0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,		/* 128-143 */
+0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,		/* 144-159 */
+0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,		/* 160-175 */
+0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,		/* 176-191 */
+0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,		/* 192-207 */
+0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,		/* 208-223 */
+0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,		/* 224-239 */
+0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0};		/* 240-255 */
+
diff --git a/linux/lib/dup.c b/linux/lib/dup.c
new file mode 100644
index 0000000..03bd5d0
--- /dev/null
+++ b/linux/lib/dup.c
@@ -0,0 +1,4 @@
+#define __LIBRARY__
+#include <unistd.h>
+
+_syscall1(int,dup,int,fd)
diff --git a/linux/lib/errno.c b/linux/lib/errno.c
new file mode 100644
index 0000000..6e7bb62
--- /dev/null
+++ b/linux/lib/errno.c
@@ -0,0 +1 @@
+int errno;
diff --git a/linux/lib/execve.c b/linux/lib/execve.c
new file mode 100644
index 0000000..03772e3
--- /dev/null
+++ b/linux/lib/execve.c
@@ -0,0 +1,4 @@
+#define __LIBRARY__
+#include <unistd.h>
+
+_syscall3(int,execve,const char *,file,char **,argv,char **,envp)
diff --git a/linux/lib/open.c b/linux/lib/open.c
new file mode 100644
index 0000000..057039c
--- /dev/null
+++ b/linux/lib/open.c
@@ -0,0 +1,19 @@
+#define __LIBRARY__
+#include <unistd.h>
+#include <stdarg.h>
+
+int open(const char * filename, int flag, ...)
+{
+	register int res;
+	va_list arg;
+
+	va_start(arg,flag);
+	__asm__("int $0x80"
+		:"=a" (res)
+		:"0" (__NR_open),"b" (filename),"c" (flag),
+		"d" (va_arg(arg,int)));
+	if (res>=0)
+		return res;
+	errno = -res;
+	return -1;
+}
diff --git a/linux/lib/setsid.c b/linux/lib/setsid.c
new file mode 100644
index 0000000..730abf0
--- /dev/null
+++ b/linux/lib/setsid.c
@@ -0,0 +1,4 @@
+#define __LIBRARY__
+#include <unistd.h>
+
+_syscall0(pid_t,setsid)
diff --git a/linux/lib/string.c b/linux/lib/string.c
new file mode 100644
index 0000000..f6befd9
--- /dev/null
+++ b/linux/lib/string.c
@@ -0,0 +1,8 @@
+#ifndef __GNUC__
+#error I want gcc!
+#endif
+
+#define extern
+#define inline
+#define __LIBRARY__
+#include <string.h>
diff --git a/linux/lib/wait.c b/linux/lib/wait.c
new file mode 100644
index 0000000..a14555c
--- /dev/null
+++ b/linux/lib/wait.c
@@ -0,0 +1,10 @@
+#define __LIBRARY__
+#include <unistd.h>
+#include <sys/wait.h>
+
+_syscall3(pid_t,waitpid,pid_t,pid,int *,wait_stat,int,options)
+
+pid_t wait(int * wait_stat)
+{
+	return waitpid(-1,wait_stat,0);
+}
diff --git a/linux/lib/write.c b/linux/lib/write.c
new file mode 100644
index 0000000..2613f17
--- /dev/null
+++ b/linux/lib/write.c
@@ -0,0 +1,4 @@
+#define __LIBRARY__
+#include <unistd.h>
+
+_syscall3(int,write,int,fd,const char *,buf,off_t,count)