From 054dd7fba3562edba728f7b2a600bf54c6c8c933 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Felix=20Quei=C3=9Fner?= <git@mq32.de>
Date: Sat, 7 May 2016 19:43:41 +0200
Subject: [PATCH] Adds simple stdlib compilation.

---
 prototypes/stdlib/Makefile         | 42 ++++++++++++++++++++++++++++++
 prototypes/stdlib/include/string.h |  7 +++++
 prototypes/stdlib/src/string.c     | 20 ++++++++++++++
 3 files changed, 69 insertions(+)
 create mode 100644 prototypes/stdlib/Makefile
 create mode 100644 prototypes/stdlib/include/string.h
 create mode 100644 prototypes/stdlib/src/string.c

diff --git a/prototypes/stdlib/Makefile b/prototypes/stdlib/Makefile
new file mode 100644
index 0000000..95cf718
--- /dev/null
+++ b/prototypes/stdlib/Makefile
@@ -0,0 +1,42 @@
+
+AS=gcc
+CC=gcc
+CXX=g++
+LD=ld
+AR=ar
+
+FLAGS = -mno-sse -ffreestanding -m32 -Werror -Wall -iquote include -O3 -g
+ASFLAGS = $(FLAGS)
+CFLAGS = $(FLAGS)	
+CXXFLAGS = $(FLAGS) -std=c++14 -fno-rtti -fno-exceptions -fno-leading-underscore -fno-use-cxa-atexit -nostdlib -fno-builtin
+
+ARTIFACT = libstd.a
+
+SRCS = $(shell find -regextype egrep -regex '.*/.*\.(cpp|S|c)')
+OBJS = $(addsuffix .o, $(notdir $(basename $(SRCS))))
+
+all: $(ARTIFACT)
+
+$(ARTIFACT): $(OBJS)
+	$(AR) rcs $(ARTIFACT) $(addprefix obj/, $^)
+
+%.o: %.cpp
+	$(CXX) $(CXXFLAGS) -c -o obj/$@ $<
+  
+%.o: %.c
+	$(CC) $(ASFLAGS) -c -o obj/$@ $<
+  
+%.o: %.S
+	$(AS) $(CFLAGS) -c -o obj/$@ $<
+	
+%.o: src/%.cpp
+	$(CXX) $(CXXFLAGS) -c -o obj/$@ $<
+  
+%.o: src/%.c
+	$(CC) $(ASFLAGS) -c -o obj/$@ $<
+  
+%.o: src/%.S
+	$(AS) $(CFLAGS) -c -o obj/$@ $<
+
+deploy: $(ARTIFACT)
+	cp $(ARTIFACT) /srv/tftp/$(ARTIFACT)
\ No newline at end of file
diff --git a/prototypes/stdlib/include/string.h b/prototypes/stdlib/include/string.h
new file mode 100644
index 0000000..809da61
--- /dev/null
+++ b/prototypes/stdlib/include/string.h
@@ -0,0 +1,7 @@
+#pragma once
+
+#include <stddef.h>
+
+void * memcpy ( void * destination, const void * source, size_t num );
+
+void * memset ( void * ptr, int value, size_t num );
\ No newline at end of file
diff --git a/prototypes/stdlib/src/string.c b/prototypes/stdlib/src/string.c
new file mode 100644
index 0000000..b1a1e93
--- /dev/null
+++ b/prototypes/stdlib/src/string.c
@@ -0,0 +1,20 @@
+#include "string.h"
+
+void * memcpy ( void * destination, const void * source, size_t num )
+{
+	char *d = destination;
+	char const * s = source;
+	for(size_t i = 0; i < num; i++) {
+		d[i] = s[i];
+	}
+	return destination;
+}
+
+void * memset ( void * ptr, int value, size_t num )
+{
+	char *p = ptr;
+	for(size_t i = 0; i < num; i++) {
+		p[i] = value;
+	}
+	return ptr;
+}
\ No newline at end of file