libdl: Add powerpc large memory and small data support.

- Add support for architecure sections that can be handled by the
  architecture back end.

- Add trampoline/fixup support for PowerPC. This means the PowerPC
  now supports large memory loading of applications.

- Add a bit allocator to manage small block based regions of memory.

- Add small data (sdata/sbss) support for the PowerPC. The support
  makes the linker allocated small data region of memory a global
  resource available to libdl loaded object files.

Updates #3687
Updates #3685

6 files changed, 52 insertions, 45 deletions

diff --git a/testsuites/libtests/dl09/dl-load.c b/testsuites/libtests/dl09/dl-load.c
index 160f8157d9..ab9a0df85b 100644
--- a/testsuites/libtests/dl09/dl-load.c
+++ b/testsuites/libtests/dl09/dl-load.c
@@ -18,7 +18,9 @@
                       RTEMS_RTL_TRACE_ALLOCATOR | \
                       RTEMS_RTL_TRACE_UNRESOLVED | \
                       RTEMS_RTL_TRACE_ARCHIVES | \
-                      RTEMS_RTL_TRACE_DEPENDENCY)
+                      RTEMS_RTL_TRACE_DEPENDENCY | \
+                      RTEMS_RTL_TRACE_LOAD_SECT | \
+                      RTEMS_RTL_TRACE_BIT_ALLOC)
  #define DL09_DEBUG_TRACE DEBUG_TRACE /* RTEMS_RTL_TRACE_ALL */
  #define DL09_RTL_CMDS    1
 #else
diff --git a/testsuites/libtests/dl09/dl-o1.c b/testsuites/libtests/dl09/dl-o1.c
index 22b839a438..438c05eee9 100644
--- a/testsuites/libtests/dl09/dl-o1.c
+++ b/testsuites/libtests/dl09/dl-o1.c
@@ -44,16 +44,17 @@ int rtems_main_o1 (void);
 
 int rtems_main_o1 (void)
 {
-  printf (DL_NAME ": module: %s\n", dl_localise_file (__FILE__));
-  printf (DL_NAME ":         dl01_bss1: %4u: %p: %d\n",   PAINT_VAR (dl01_bss1));
-  printf (DL_NAME ":         dl01_bss2: %4u: %p: %f\n",   PAINT_VAR (dl01_bss2[0]));
-  printf (DL_NAME ":         dl01_bss3: %4u: %p: %02x\n", PAINT_VAR (dl01_bss3[0]));
-  printf (DL_NAME ":        dl01_data1: %4u: %p: %d\n",   PAINT_VAR (dl01_data1));
+  printf (DL_NAME ": module: %s @ %p\n",
+	  dl_localise_file (__FILE__), rtems_main_o1);
+  printf (DL_NAME ":         dl01_bss1: %4zu: %p: %d\n",   PAINT_VAR (dl01_bss1));
+  printf (DL_NAME ":         dl01_bss2: %4zu: %p: %f\n",   PAINT_VAR (dl01_bss2[0]));
+  printf (DL_NAME ":         dl01_bss3: %4zu: %p: %02x\n", PAINT_VAR (dl01_bss3[0]));
+  printf (DL_NAME ":        dl01_data1: %4zu: %p: %d\n",   PAINT_VAR (dl01_data1));
   /* no  %f in the rtems test printer */
-  printf (DL_NAME ":        dl01_data2: %4u: %p: %f\n",   PAINT_VAR (dl01_data2));
-  printf (DL_NAME ":       dl01_const1: %4u: %p: %d\n",   PAINT_VAR (dl01_const1));
-  printf (DL_NAME ":       dl01_const2: %4u: %p: %f\n",   PAINT_VAR (dl01_const2));
-  printf (DL_NAME ":        dl01_func1: %4u: %p\n",       sizeof(dl01_func1), &dl01_func1);
+  printf (DL_NAME ":        dl01_data2: %4zu: %p: %f\n",   PAINT_VAR (dl01_data2));
+  printf (DL_NAME ":       dl01_const1: %4zu: %p: %d\n",   PAINT_VAR (dl01_const1));
+  printf (DL_NAME ":       dl01_const2: %4zu: %p: %f\n",   PAINT_VAR (dl01_const2));
+  printf (DL_NAME ":        dl01_func1: %4zu: %p\n",       sizeof(dl01_func1), &dl01_func1);
 
   rtems_main_o2 ();
 
diff --git a/testsuites/libtests/dl09/dl-o2.c b/testsuites/libtests/dl09/dl-o2.c
index 907fe9a268..4b9f15cd28 100644
--- a/testsuites/libtests/dl09/dl-o2.c
+++ b/testsuites/libtests/dl09/dl-o2.c
@@ -17,7 +17,7 @@
 int   dl02_bss1;
 float dl02_bss2[7];
 char  dl02_bss3[21];
-int   dl02_data1;
+int   dl02_data1 = 0x12345678;
 float dl02_data2;
 
 #define DL_NAME       "dlo2"
@@ -25,13 +25,14 @@ float dl02_data2;
 
 int rtems_main_o2 (void)
 {
-  printf (DL_NAME ": module: %s\n", dl_localise_file (__FILE__));
-  printf (DL_NAME ":         dl02_bss1: %4u: %p: %d\n",   PAINT_VAR (dl02_bss1));
-  printf (DL_NAME ":         dl02_bss2: %4u: %p: %f\n",   PAINT_VAR (dl02_bss2[0]));
-  printf (DL_NAME ":         dl02_bss3: %4u: %p: %02x\n", PAINT_VAR (dl02_bss3[0]));
-  printf (DL_NAME ":        dl02_data1: %4u: %p: %d\n",   PAINT_VAR (dl02_data1));
+  printf (DL_NAME ": module: %s @ %p\n",
+	  dl_localise_file (__FILE__), rtems_main_o2);
+  printf (DL_NAME ":         dl02_bss1: %4zu: %p: %d\n",   PAINT_VAR (dl02_bss1));
+  printf (DL_NAME ":         dl02_bss2: %4zu: %p: %f\n",   PAINT_VAR (dl02_bss2[0]));
+  printf (DL_NAME ":         dl02_bss3: %4zu: %p: %02x\n", PAINT_VAR (dl02_bss3[0]));
+  printf (DL_NAME ":        dl02_data1: %4zu: %p: %08x\n", PAINT_VAR (dl02_data1));
   /* no %f in the rtems test printer */
-  printf (DL_NAME ":        dl02_data2: %4u: %p: %f\n",   PAINT_VAR (dl02_data2));
+  printf (DL_NAME ":        dl02_data2: %4zu: %p: %f\n",   PAINT_VAR (dl02_data2));
 
   rtems_main_o3 ();
 
diff --git a/testsuites/libtests/dl09/dl-o3.c b/testsuites/libtests/dl09/dl-o3.c
index 4333f34057..7f8f419bb1 100644
--- a/testsuites/libtests/dl09/dl-o3.c
+++ b/testsuites/libtests/dl09/dl-o3.c
@@ -21,18 +21,19 @@
 
 int rtems_main_o3 ()
 {
-  printf (DL_NAME ": module: %s\n", dl_localise_file (__FILE__));
-  printf (DL_NAME ":   dl04_unresolv_1: %4u: %p: %d\n",          PAINT_VAR (dl04_unresolv_1));
-  printf (DL_NAME ":   dl04_unresolv_2: %4u: %p: %f\n",          PAINT_VAR (dl04_unresolv_2));
-  printf (DL_NAME ":   dl04_unresolv_3: %4u: %p: %02x\n",        PAINT_VAR (dl04_unresolv_3));
-  printf (DL_NAME ":   dl04_unresolv_4: %4u: %p: %p\n",          PAINT_VAR (dl04_unresolv_4));
-  printf (DL_NAME ":   dl04_unresolv_5: %4u: %p: %d\n",          PAINT_VAR (dl04_unresolv_5));
-  printf (DL_NAME ":   dl04_unresolv_6: %4u: %p: %s\n",          PAINT_VAR (dl04_unresolv_6));
-  printf (DL_NAME ":   dl05_unresolv_1: %4u: %p: %" PRIu64 "\n", PAINT_VAR (dl05_unresolv_1));
-  printf (DL_NAME ":   dl05_unresolv_2: %4u: %p: %" PRIu16 "\n", PAINT_VAR (dl05_unresolv_2));
-  printf (DL_NAME ":   dl05_unresolv_3: %4u: %p: %" PRIu32 "\n", PAINT_VAR (dl05_unresolv_3));
-  printf (DL_NAME ":   dl05_unresolv_4: %4u: %p: %" PRIu8  "\n", PAINT_VAR (dl05_unresolv_4));
-  printf (DL_NAME ":   dl05_unresolv_5: %4u: %p: %" PRIi64 "\n", PAINT_VAR (dl05_unresolv_5));
+  printf (DL_NAME ": module: %s : %p\n",
+	  dl_localise_file (__FILE__), rtems_main_o3);
+  printf (DL_NAME ":   dl04_unresolv_1: %4zu: %p: %d\n",          PAINT_VAR (dl04_unresolv_1));
+  printf (DL_NAME ":   dl04_unresolv_2: %4zu: %p: %f\n",          PAINT_VAR (dl04_unresolv_2));
+  printf (DL_NAME ":   dl04_unresolv_3: %4zu: %p: %02x\n",        PAINT_VAR (dl04_unresolv_3));
+  printf (DL_NAME ":   dl04_unresolv_4: %4zu: %p: %p\n",          PAINT_VAR (dl04_unresolv_4));
+  printf (DL_NAME ":   dl04_unresolv_5: %4zu: %p: %d\n",          PAINT_VAR (dl04_unresolv_5));
+  printf (DL_NAME ":   dl04_unresolv_6: %4zu: %p: %s\n",          PAINT_VAR (dl04_unresolv_6));
+  printf (DL_NAME ":   dl05_unresolv_1: %4zu: %p: %" PRIu64 "\n", PAINT_VAR (dl05_unresolv_1));
+  printf (DL_NAME ":   dl05_unresolv_2: %4zu: %p: %" PRIu16 "\n", PAINT_VAR (dl05_unresolv_2));
+  printf (DL_NAME ":   dl05_unresolv_3: %4zu: %p: %" PRIu32 "\n", PAINT_VAR (dl05_unresolv_3));
+  printf (DL_NAME ":   dl05_unresolv_4: %4zu: %p: %" PRIu8  "\n", PAINT_VAR (dl05_unresolv_4));
+  printf (DL_NAME ":   dl05_unresolv_5: %4zu: %p: %" PRIi64 "\n", PAINT_VAR (dl05_unresolv_5));
 
   rtems_main_o4 ();
 
diff --git a/testsuites/libtests/dl09/dl-o4.c b/testsuites/libtests/dl09/dl-o4.c
index 60ada7ac68..9fea2e5d5c 100644
--- a/testsuites/libtests/dl09/dl-o4.c
+++ b/testsuites/libtests/dl09/dl-o4.c
@@ -14,10 +14,10 @@
 
 #define printf(...) rtems_printf(&rtems_test_printer, __VA_ARGS__);
 
-int         dl04_unresolv_1;
+int         dl04_unresolv_1 = 12345;
 float       dl04_unresolv_2;
-char        dl04_unresolv_3;
-char*       dl04_unresolv_4;
+char        dl04_unresolv_3 = 'z';
+char*       dl04_unresolv_4 = "aBcDeF";
 const int   dl04_unresolv_5 = 4;
 const char* dl04_unresolv_6 = "dl-O4";
 
@@ -26,13 +26,14 @@ const char* dl04_unresolv_6 = "dl-O4";
 
 int rtems_main_o4 (void)
 {
-  printf (DL_NAME ": module: %s\n", dl_localise_file (__FILE__));
-  printf (DL_NAME ":   dl04_unresolv_1: %4u: %p: %d\n",   PAINT_VAR (dl04_unresolv_1));
-  printf (DL_NAME ":   dl04_unresolv_2: %4u: %p: %f\n",   PAINT_VAR (dl04_unresolv_2));
-  printf (DL_NAME ":   dl04_unresolv_3: %4u: %p: %02x\n", PAINT_VAR (dl04_unresolv_3));
-  printf (DL_NAME ":   dl04_unresolv_4: %4u: %p: %p\n",   PAINT_VAR (dl04_unresolv_4));
-  printf (DL_NAME ":   dl04_unresolv_5: %4u: %p: %d\n",   PAINT_VAR (dl04_unresolv_5));
-  printf (DL_NAME ":   dl04_unresolv_6: %4u: %p: %s\n",   PAINT_VAR (dl04_unresolv_6));
+  printf (DL_NAME ": module: %s @ %p\n",
+	  dl_localise_file (__FILE__), rtems_main_o4);
+  printf (DL_NAME ":   dl04_unresolv_1: %4zu: %p: %d\n",   PAINT_VAR (dl04_unresolv_1));
+  printf (DL_NAME ":   dl04_unresolv_2: %4zu: %p: %f\n",   PAINT_VAR (dl04_unresolv_2));
+  printf (DL_NAME ":   dl04_unresolv_3: %4zu: %p: %02x\n", PAINT_VAR (dl04_unresolv_3));
+  printf (DL_NAME ":   dl04_unresolv_4: %4zu: %p: %s\n",   PAINT_VAR (dl04_unresolv_4));
+  printf (DL_NAME ":   dl04_unresolv_5: %4zu: %p: %d\n",   PAINT_VAR (dl04_unresolv_5));
+  printf (DL_NAME ":   dl04_unresolv_6: %4zu: %p: %s\n",   PAINT_VAR (dl04_unresolv_6));
 
   rtems_main_o5 ();
 
diff --git a/testsuites/libtests/dl09/dl-o5.c b/testsuites/libtests/dl09/dl-o5.c
index fc02e19272..fb1169256c 100644
--- a/testsuites/libtests/dl09/dl-o5.c
+++ b/testsuites/libtests/dl09/dl-o5.c
@@ -26,12 +26,13 @@ int64_t  dl05_unresolv_5;
 
 int rtems_main_o5 (void)
 {
-  printf (DL_NAME ": module: %s\n", dl_localise_file (__FILE__));
-  printf (DL_NAME ":   dl05_unresolv_1: %4u: %p: %" PRIu64 "\n", PAINT_VAR (dl05_unresolv_1));
-  printf (DL_NAME ":   dl05_unresolv_2: %4u: %p: %" PRIu16 "\n", PAINT_VAR (dl05_unresolv_2));
-  printf (DL_NAME ":   dl05_unresolv_3: %4u: %p: %" PRIu32 "\n", PAINT_VAR (dl05_unresolv_3));
-  printf (DL_NAME ":   dl05_unresolv_4: %4u: %p: %" PRIu8  "\n", PAINT_VAR (dl05_unresolv_4));
-  printf (DL_NAME ":   dl05_unresolv_5: %4u: %p: %" PRIi64 "\n", PAINT_VAR (dl05_unresolv_5));
+  printf (DL_NAME ": module: %s @ %p\n",
+	  dl_localise_file (__FILE__), rtems_main_o5);
+  printf (DL_NAME ":   dl05_unresolv_1: %4zu: %p: %" PRIu64 "\n", PAINT_VAR (dl05_unresolv_1));
+  printf (DL_NAME ":   dl05_unresolv_2: %4zu: %p: %" PRIu16 "\n", PAINT_VAR (dl05_unresolv_2));
+  printf (DL_NAME ":   dl05_unresolv_3: %4zu: %p: %" PRIu32 "\n", PAINT_VAR (dl05_unresolv_3));
+  printf (DL_NAME ":   dl05_unresolv_4: %4zu: %p: %" PRIu8  "\n", PAINT_VAR (dl05_unresolv_4));
+  printf (DL_NAME ":   dl05_unresolv_5: %4zu: %p: %" PRIi64 "\n", PAINT_VAR (dl05_unresolv_5));
 
   return 0;
 }