1 files changed, 75 insertions, 0 deletions
diff --git a/test/regression/sections.c b/test/regression/sections.c
new file mode 100644
index 0000000..2e0e4e7
--- /dev/null
+++ b/test/regression/sections.c
@@ -0,0 +1,75 @@
+#include <stdio.h>
+
+/* Testing accesses to small data area and relative addressing sections */
+
+struct s {
+  signed char sc;
+  unsigned char uc;
+  signed short ss;
+  unsigned short us;
+  int i;
+  float f;
+  double d;
+  long long ll;
+};
+
+struct s x;                     /* normal absolute addressing */
+
+#pragma use_section SDATA y
+struct s y;                     /* small data area */
+
+#pragma section MYDATA ".mydata" ".mydata" far-data RW
+#pragma use_section MYDATA z
+struct s z;                     /* far data area, relative addressing */
+
+#define TEST(msg,ty,x,v1,v2,v3)                                    \
+  x = v1;                                                          \
+  __builtin_membar();                                              \
+  printf("%s 1: %s\n", msg, x == v1 ? "OK" : "FAILED");            \
+  *((volatile ty *) &x) = v2;                                      \
+  printf("%s 2: %s\n", msg, x == v2 ? "OK" : "FAILED");            \
+  x = v3;                                                          \
+  printf("%s 3: %s\n", msg, *((volatile ty *) &x) == v3 ? "OK" : "FAILED");
+
+/* This function must be inlined so that global addressing modes are 
+   generated */
+
+static inline void test(struct s * p)
+{
+  TEST("signed char", signed char, p->sc, 12, 34, 56);
+  TEST("unsigned char", unsigned char, p->uc, 56, 78, 123);
+  TEST("signed short", signed short, p->ss, 1234, 5678, 9999);
+  TEST("unsigned short", unsigned short, p->us, 1357, 2468, 3939);
+  TEST("int", int, p->i, 0x123456, 0x7890AB, 0xDEADBEEF);
+  TEST("float", float, p->f, 0.5f, 256.0f, 16.0f);
+  TEST("double", double, p->d, 3.1415, 2.718, 0.747);
+  TEST("long long", long long, p->ll, 
+       0x123456789ABCDEFLL, 0x789ABCDEF1234567LL,
+       0x128934AB56CD70EFLL);
+}
+
+void absolute(void)
+{
+  printf("---- Absolute addressing\n");
+  test(&x);
+}
+
+void sda(void)
+{
+  printf("---- Small data area\n");
+  test(&y);
+}
+
+void relative(void)
+{
+  printf("---- Relative addressing\n");
+  test(&z);
+}
+
+int main(void)
+{
+  absolute();
+  sda();
+  relative();
+  return 0;
+}