break apart c libaray

3 files changed, 0 insertions, 150 deletions

diff --git a/ulib/entry.S b/ulib/entry.S
deleted file mode 100644
index 87ad9c7..0000000
--- a/ulib/entry.S
+++ /dev/null
@@ -1,25 +0,0 @@
-//
-// user-level startup routine
-//
-	.text
-	.globl _start
-	.globl	main
-	.globl	exit
-
-// entry point - this is where the kernel starts us running
-_start:
-	// we immediately call main()
-	call main
-
-	// if we come back from that, it means the user
-	// program didn't call exit(), in which case the
-	// value returned from main() is the exit status
-
-	// push that value onto the stack and call exit()
-	subl	$12, %esp
-	pushl	%eax
-	call	exit
-
-	// if we come back from that, something bad has
-	// happened, so we just lock up
-1:	jmp 1b
diff --git a/ulib/spawn.c b/ulib/spawn.c
deleted file mode 100644
index 78b1a53..0000000
--- a/ulib/spawn.c
+++ /dev/null
@@ -1,32 +0,0 @@
-#include <stdio.h>
-#include <error.h>
-#include <unistd.h>
-
-int wait(int32_t *status)
-{
-	return (waitpid(0, status));
-}
-
-int spawn(uint_t prog, char **args)
-{
-	int32_t pid;
-
-	pid = fork();
-	if (pid != 0) {
-		// failure, or we are the parent
-		return (pid);
-	}
-
-	// we are the child
-	pid = getpid();
-
-	// child inherits parent's priority level
-
-	exec(prog, args);
-
-	// uh-oh....
-
-	fprintf(stderr, "Child %d exec() #%u failed\n", pid, prog);
-
-	exit(EXIT_FAILURE);
-}
diff --git a/ulib/syscall.S b/ulib/syscall.S
deleted file mode 100644
index 46fcb89..0000000
--- a/ulib/syscall.S
+++ /dev/null
@@ -1,93 +0,0 @@
-/**
-** @file	ulibs.S
-**
-** @author	CSCI-452 class of 20245
-**
-** @brief	assembly-language user-level library functions
-*/
-
-#define	ASM_SRC
-
-// get the system call codes
-
-#include <syscalls.h>
-
-/**
-** System call stubs
-**
-** All have the same structure:
-**
-**      move a code into EAX
-**      generate the interrupt
-**      return to the caller
-**
-** As these are simple "leaf" routines, we don't use
-** the standard enter/leave method to set up a stack
-** frame - that takes time, and we don't really need it.
-**
-** Could be modified to use the UNIX/Linux convention of
-** having the syscall code set the 'C' flag to indicate that
-** the value being returned in %EAX is an error code:
-**
-**	  ...
-**	int	$VEC_SYSCALL
-**	jc	set_errno
-**	ret
-**	  ...
-**
-**	.globl	errno
-** set_errno:
-**	movl	%eax, errno
-**	movl	$-1, %eax
-**	ret
-*/
-
-#define	SYSCALL(name) \
-	.globl	name			; \
-name:					; \
-	movl	$SYS_##name, %eax	; \
-	int	$VEC_SYSCALL	; \
-	ret
-
-/*
-** "real" system calls
-*/
-
-SYSCALL(exit)
-SYSCALL(waitpid)
-SYSCALL(fork)
-SYSCALL(exec)
-SYSCALL(read)
-SYSCALL(write)
-SYSCALL(getpid)
-SYSCALL(getppid)
-SYSCALL(gettime)
-SYSCALL(getprio)
-SYSCALL(setprio)
-SYSCALL(kill)
-SYSCALL(sleep)
-
-/*
-** This is a bogus system call; it's here so that we can test
-** our handling of out-of-range syscall codes in the syscall ISR.
-*/
-SYSCALL(bogus)
-
-/*
-** Other library functions
-*/
-
-/**
-** fake_exit()
-**
-** Dummy "startup" function
-**
-** calls exit(%eax) - serves as the "return to" code for
-** main() functions, in case they don't call exit() themselves
-*/
-
-	.globl	fake_exit
-fake_exit:
-	// alternate: could push a "fake exit" status
-	pushl	%eax	// termination status returned by main()
-	call	exit	// terminate this process