new test using malloc()

tests/C/malloc_test/Makefile

@@ -1,15 +1,15 @@
-TARGET   = test_malloc
+TARGET   = malloc_test
 
-TARGET_ARCH=riscv32
+TARGET_ARCH = riscv32
 
 CC       = riscv32-unknown-elf-gcc
 
 # compiling flags here
-CFLAGS = -Wall -I. -O0 -static --specs=nosys.specs
+CFLAGS = -Wall -I. -O0 -static -march=rv32imac -mabi=ilp32 --specs=nosys.specs
 
-LINKER   = riscv32-unknown-linux-gnu-gcc
+LINKER   = riscv32-unknown-elf-gcc
 # linking flags here
-LDFLAGS   = -I. --entry main -L/opt/riscv/riscv32-unknown-elf/lib/ -T ld_script.ld
+LDFLAGS   = -I. -static 
 LIBS   = $(EXTRA_LIBS)
 
 
@@ -24,19 +24,19 @@ LIBDIR = -L.
 SOURCES  := $(wildcard $(SRCDIR)/*.c)
 INCLUDES := $(wildcard $(INCDIR)/*.h)
 OBJECTS  := $(SOURCES:$(SRCDIR)/%.c=$(OBJDIR)/%.o)
+
 rm       = rm -f
 
 
 $(BINDIR)/$(TARGET): $(OBJECTS)
-#	$(LINKER) $(OBJECTS) $(LDFLAGS) $(LIBS) $(LIBDIR) -o $@
-	riscv32-unknown-elf-objdump -d $< > dump
-	objcopy -Oihex $< $(TARGET).hex
-#	@echo "Linking complete!"
+	$(LINKER) $(CFLAGS) $(LDFLAGS) $(LIBS) $(LIBDIR) $(OBJECTS) -o $@
+	riscv32-unknown-elf-objdump -d $@ > dump
+	riscv32-unknown-elf-objcopy -Oihex $@ $(TARGET).hex
+	@echo "Linking complete!"
 
 $(OBJECTS): $(OBJDIR)/%.o : $(SRCDIR)/%.c
 	@echo "Compiling "$<" ..."
-#	$(CC) $(CFLAGS) $(INCDIR) -c $< -o $@
-	$(CC) $(CFLAGS) $(INCDIR) $< -o $@
+	$(CC) $(CFLAGS) $(INCDIR) -c $< -o $@
 	@echo "Done!"
 
 .PHONY: clean
@@ -46,5 +46,5 @@ clean:
 
 .PHONY: remove
 remove: clean
-	@$(rm) $(BINDIR)/$(TARGET)
+	@$(rm) $(BINDIR)/$(TARGET) $(OBJECTS)
 	@echo "Executable removed!"

tests/C/malloc_test/helper_functions.c

@@ -0,0 +1,35 @@
+#include <string.h>
+#include <stdio.h>
+
+
+#define TRACE (*(unsigned char *)0x40000000)
+int _read(int file, char* ptr, int len) {
+    return 0;
+}
+
+int _close(int fd){
+    return 0;
+}
+
+int _fstat_r(int fd) {
+    return 0;
+}
+
+int _lseek_r(struct _reent *ptr, FILE *fp, long offset, int whence){
+    return 0;
+}
+
+int _isatty_r(struct _reent *ptr, int fd) {
+    return 0;
+}
+
+int _write(int file, const char *ptr, int len) {
+  int x;
+
+  for (x = 0; x < len; x++) {
+    TRACE =  *ptr++;
+  }
+
+  return (len);
+}
+

tests/C/malloc_test/malloc_test.c

@@ -2,45 +2,9 @@
 #include <stdio.h>
 #include <stdlib.h>
 #include <stdbool.h>
-#include <errno.h>
-#include <sys/stat.h>
 
 #define BUFFER_SIZE (512)
-#define TRACE (*(unsigned char *)0x40000000)
 
-extern int  errno;
-
-int _write(int file, const char *ptr, int len) {
-  int x;
-
-  for (x = 0; x < len; x++) {
-    TRACE =  *ptr++;
-  }
-
-  return (len);
-}
-
-int _read (int   file, char *ptr, int   len) {
-  return  0;
-}  
-
-int _close (int   file) {
-  errno = EBADF;
-  return -1;
-} 
-
-int _fstat (int file, struct stat *st) {
-  st->st_mode = S_IFCHR;
-  return  0;
-}   
-
-int _isatty (int   file) {
-  return  1;
-} 
-
-int _lseek (int file, int offset, int whence) {
-  return  0;
-} 
 
 int main(void) {
   uint16_t *buffA, *buffB;