From 9312bf9a64b9f9ae6a5537aad238337a4fd4536b Mon Sep 17 00:00:00 2001
From: zombie maniac <zombie@qtechofficial.com>
Date: Sun, 24 Nov 2024 23:51:08 -0500
Subject: [PATCH] made it more of a library

---
 .gitignore                    |  1 +
 Makefile                      | 42 +++++++++++++++++++++++++++++++++++
 hello.s                       | 25 ++++++++++-----------
 funnyhello.s => libzomutils.s | 27 +++-------------------
 4 files changed, 58 insertions(+), 37 deletions(-)
 create mode 100644 .gitignore
 create mode 100644 Makefile
 rename funnyhello.s => libzomutils.s (68%)

diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..567609b
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1 @@
+build/
diff --git a/Makefile b/Makefile
new file mode 100644
index 0000000..f8e4669
--- /dev/null
+++ b/Makefile
@@ -0,0 +1,42 @@
+# Compiler and flags
+CC = clang
+CFLAGS = --target=riscv32 -march=rv64gc_zbb -mabi=lp64 -mno-relax -g
+
+# Directories and files
+BUILD_DIR = build
+ZOMUTILS_SRC = libzomutils.s
+ZOMUTILS_OBJ = $(BUILD_DIR)/libzomutils.o
+ZOMUTILS_LIB = $(BUILD_DIR)/libzomutils.a
+HELLO_SRC = hello.s
+HELLO_OBJ = $(BUILD_DIR)/hello.o
+HELLO_BIN = $(BUILD_DIR)/hello
+
+# Default target
+all: $(HELLO_BIN)
+
+# Ensure build directory exists
+$(BUILD_DIR):
+	mkdir -p $(BUILD_DIR)
+
+# Build libzomutils object file
+$(ZOMUTILS_OBJ): $(ZOMUTILS_SRC) | $(BUILD_DIR)
+	$(CC) $(CFLAGS) -c $< -o $@
+
+# Create static library libzomutils.a
+$(ZOMUTILS_LIB): $(ZOMUTILS_OBJ)
+	ar rcs $@ $^
+
+# Build hello object file
+$(HELLO_OBJ): $(HELLO_SRC) | $(BUILD_DIR)
+	$(CC) $(CFLAGS) -c $< -o $@
+
+# Link hello executable with libzomutils.a
+$(HELLO_BIN): $(HELLO_OBJ) $(ZOMUTILS_LIB)
+	$(CC) $(CFLAGS) -nostdlib $^ -o $@
+
+# Clean up generated files
+clean:
+	rm -rf $(BUILD_DIR)
+
+.PHONY: all clean
+
diff --git a/hello.s b/hello.s
index 0c7b1de..7dae0b9 100644
--- a/hello.s
+++ b/hello.s
@@ -1,17 +1,16 @@
-.globl _start
+    .section .data
+message:
+    .asciz "Hello from libzomutils!\n"
 
-    _start:
-        li a0, 1            # file descriptor = 1 (stdout)
-        la a1, string       # buffer
-        li a2, 19           # size
-        li a7, 64           # syscall write (64)
-        ecall
+    .section .text
+    .global _start
 
-    _end:
+_start:
+    # Load the address of the message into a0 (first argument register)
+    la a0, message
 
-        li a0, 0            # exit code
-        li a7, 93           # syscall exit
-        ecall
+    # Call the puts function from libzomutils
+    call puts
 
-
-    string:  .asciz "Hello! It works!!!\n"
+    # Exit the program
+    call exit
diff --git a/funnyhello.s b/libzomutils.s
similarity index 68%
rename from funnyhello.s
rename to libzomutils.s
index f6751d9..3353097 100644
--- a/funnyhello.s
+++ b/libzomutils.s
@@ -1,23 +1,8 @@
 .text
-.globl _start
 
-_start:
-    ld a0, 8(sp)
-    jal ra, puts
-    la a0, helloworld
-    jal ra, puts
-    la a0, incomingflag
-    jal ra, puts
-
-
-    ld t2, flagmyballs
-    ror t2, t2, 01
-    la t1, flagmyballs
-    sd t2, 0(t1)
-
-    la a0, flagmyballs
-    jal ra, puts
-    j exit
+.globl len
+.globl puts
+.globl exit
 
 len:
     mv t0, a0
@@ -70,9 +55,3 @@ exit:
     li a7, 93           # syscall exit
     ecall
 
-.data
-helloworld:  .asciz "Hello! It works!!!\n"
-incomingflag:  .asciz "The flag you gotta fix should be right after the newline\n"
-flagmyballs:
-#    .dword 0x7370617263363400
-    .dword 0x0343663726170730