Remove register keyword from public header files

The following code

  void f(void)
  {
    register int i;
  }

gives a warning with GCC and -std=c++17

  test.cc: In function ‘void f()’:
  test.cc:3:15: warning: ISO C++1z does not allow ‘register’ storage class
  specifier [-Wregister]
    register int i;
		       ^

and clang with -std=c++14

  test.cc:3:3: warning: 'register' storage class specifier is deprecated
  and incompatible with C++1z [-Wdeprecated-register]
    register int i;
    ^~~~~~~~~
  1 warning generated.

Remove the use of the register keyword at least in the public header
files for C++ compatibility.

Close #3397.

2 files changed, 7 insertions, 7 deletions

diff --git a/cpukit/score/cpu/m68k/include/rtems/score/cpu.h b/cpukit/score/cpu/m68k/include/rtems/score/cpu.h
index fc6847f37e..9b140d0da3 100644
--- a/cpukit/score/cpu/m68k/include/rtems/score/cpu.h
+++ b/cpukit/score/cpu/m68k/include/rtems/score/cpu.h
@@ -501,7 +501,7 @@ extern const unsigned char _CPU_m68k_BFFFO_table[256];
 
 #define _CPU_Bitfield_Find_first_bit( _value, _output ) \
   { \
-    register int dumby; \
+    int dumby; \
     \
     __asm__ volatile ( \
        "   clr.l   %1\n"         \
@@ -521,7 +521,7 @@ extern const unsigned char _CPU_m68k_BFFFO_table[256];
 #elif ( M68K_HAS_EXTB_L == 1 )
 #define _CPU_Bitfield_Find_first_bit( _value, _output ) \
   { \
-    register int dumby; \
+    int dumby; \
     \
     __asm__ volatile ( "   move.w  %2,%1\n"        \
        "   lsr.w   #8,%1\n"        \
@@ -539,7 +539,7 @@ extern const unsigned char _CPU_m68k_BFFFO_table[256];
 #else
 #define _CPU_Bitfield_Find_first_bit( _value, _output ) \
   { \
-    register int dumby; \
+    int dumby; \
     \
     __asm__ volatile ( "   move.w  %2,%1\n"        \
        "   lsr.w   #8,%1\n"        \
diff --git a/cpukit/score/cpu/m68k/include/rtems/score/m68k.h b/cpukit/score/cpu/m68k/include/rtems/score/m68k.h
index 818578c078..f37d978ab9 100644
--- a/cpukit/score/cpu/m68k/include/rtems/score/m68k.h
+++ b/cpukit/score/cpu/m68k/include/rtems/score/m68k.h
@@ -334,7 +334,7 @@ extern "C" {
 
 #if ( defined(__mcoldfire__) )
 #define m68k_disable_interrupts( _level ) \
-   do { register uint32_t   _tmpsr = 0x0700; \
+   do { uint32_t   _tmpsr = 0x0700; \
         __asm__ volatile ( "move.w %%sr,%0\n\t" \
  		       "or.l   %0,%1\n\t" \
  		       "move.w %1,%%sr" \
@@ -354,7 +354,7 @@ extern "C" {
 
 #if ( defined(__mcoldfire__) )
 #define m68k_flash_interrupts( _level ) \
-   do { register uint32_t   _tmpsr = 0x0700; \
+   do { uint32_t   _tmpsr = 0x0700; \
 	asm volatile ( "move.w %2,%%sr\n\t" \
 		       "or.l   %2,%1\n\t" \
 		       "move.w %1,%%sr" \
@@ -371,7 +371,7 @@ extern "C" {
 
 #define m68k_get_interrupt_level( _level ) \
   do { \
-    register uint32_t   _tmpsr; \
+    uint32_t   _tmpsr; \
     \
     __asm__ volatile( "move.w %%sr,%0" : "=d" (_tmpsr)); \
     _level = (_tmpsr & 0x0700) >> 8; \
@@ -379,7 +379,7 @@ extern "C" {
 
 #define m68k_set_interrupt_level( _newlevel ) \
   do { \
-    register uint32_t   _tmpsr; \
+    uint32_t   _tmpsr; \
     \
     __asm__ volatile( "move.w  %%sr,%0" : "=d" (_tmpsr)); \
     _tmpsr = (_tmpsr & 0xf8ff) | ((_newlevel) << 8); \