Test and Makefile rules for 32- and 64-bit ELF shared libraries

Add Makefile rules for the 32-bit ELF shared library test, and add a
64-bit ELF shared library test (still work in progress.)

1 files changed, 42 insertions, 0 deletions

diff --git a/test/elftest64.c b/test/elftest64.c
new file mode 100644
index 0000000..5f009a7
--- /dev/null
+++ b/test/elftest64.c
@@ -0,0 +1,42 @@
+/*
+ *  build with:
+ *	nasm -f elf64 elf64so.asm
+ *	ld -shared -o elf64so.so elf64so.o
+ * test with:
+ *	gcc -o elf64so elftest64.c ./elf64so.so
+ *	./elf64so
+ */
+
+#include <stdio.h>
+#include <inttypes.h>
+
+extern long lrotate(long, int);
+extern void greet(void);
+extern int8_t asmstr[];
+extern void *selfptr;
+extern void *textptr;
+extern long integer;
+long commvar;
+
+int main(void)
+{
+
+    printf("Testing lrotate: should get 0x00400000, 0x00000001\n");
+    printf("lrotate(0x00040000, 4) = 0x%08lx\n", lrotate(0x40000, 4));
+    printf("lrotate(0x00040000, 46) = 0x%08lx\n", lrotate(0x40000, 46));
+
+    printf("This string should read `hello, world': `%s'\n", asmstr);
+
+    printf("&integer = %p, &commvar = %p\n", &integer, &commvar);
+    printf("The integers here should be 1234, 1235 and 4321:\n");
+    integer = 1234;
+    commvar = 4321;
+
+    greet();
+
+    printf("These pointers should be equal: %p and %p\n", &greet, textptr);
+
+    printf("So should these: %p and %p\n", selfptr, &selfptr);
+
+    return 0;
+}