score: Add _CPU_Instruction_illegal()

On some architectures/simulators it is difficult to provoke an
exception with misaligned or illegal data loads.  Use an illegal
instruction instead.

Update #3433.

19 files changed, 100 insertions, 0 deletions

diff --git a/cpukit/score/cpu/arm/include/rtems/score/cpuimpl.h b/cpukit/score/cpu/arm/include/rtems/score/cpuimpl.h
index d007a7982b..b856349db3 100644
--- a/cpukit/score/cpu/arm/include/rtems/score/cpuimpl.h
+++ b/cpukit/score/cpu/arm/include/rtems/score/cpuimpl.h
@@ -106,6 +106,11 @@ void _CPU_Context_volatile_clobber( uintptr_t pattern );
 
 void _CPU_Context_validate( uintptr_t pattern );
 
+RTEMS_INLINE_ROUTINE void _CPU_Instruction_illegal( void )
+{
+  __asm__ volatile ( "udf" );
+}
+
 RTEMS_INLINE_ROUTINE void _CPU_Instruction_no_operation( void )
 {
   __asm__ volatile ( "nop" );
diff --git a/cpukit/score/cpu/bfin/include/rtems/score/cpuimpl.h b/cpukit/score/cpu/bfin/include/rtems/score/cpuimpl.h
index 5d8bd77161..78b87ef981 100644
--- a/cpukit/score/cpu/bfin/include/rtems/score/cpuimpl.h
+++ b/cpukit/score/cpu/bfin/include/rtems/score/cpuimpl.h
@@ -37,6 +37,11 @@ RTEMS_INLINE_ROUTINE void _CPU_Context_validate( uintptr_t pattern )
   }
 }
 
+RTEMS_INLINE_ROUTINE void _CPU_Instruction_illegal( void )
+{
+  __asm__ volatile ( ".word 0" );
+}
+
 RTEMS_INLINE_ROUTINE void _CPU_Instruction_no_operation( void )
 {
   __asm__ volatile ( "nop" );
diff --git a/cpukit/score/cpu/epiphany/include/rtems/score/cpuimpl.h b/cpukit/score/cpu/epiphany/include/rtems/score/cpuimpl.h
index 5d8bd77161..78b87ef981 100644
--- a/cpukit/score/cpu/epiphany/include/rtems/score/cpuimpl.h
+++ b/cpukit/score/cpu/epiphany/include/rtems/score/cpuimpl.h
@@ -37,6 +37,11 @@ RTEMS_INLINE_ROUTINE void _CPU_Context_validate( uintptr_t pattern )
   }
 }
 
+RTEMS_INLINE_ROUTINE void _CPU_Instruction_illegal( void )
+{
+  __asm__ volatile ( ".word 0" );
+}
+
 RTEMS_INLINE_ROUTINE void _CPU_Instruction_no_operation( void )
 {
   __asm__ volatile ( "nop" );
diff --git a/cpukit/score/cpu/i386/include/rtems/score/cpuimpl.h b/cpukit/score/cpu/i386/include/rtems/score/cpuimpl.h
index 5d8bd77161..78b87ef981 100644
--- a/cpukit/score/cpu/i386/include/rtems/score/cpuimpl.h
+++ b/cpukit/score/cpu/i386/include/rtems/score/cpuimpl.h
@@ -37,6 +37,11 @@ RTEMS_INLINE_ROUTINE void _CPU_Context_validate( uintptr_t pattern )
   }
 }
 
+RTEMS_INLINE_ROUTINE void _CPU_Instruction_illegal( void )
+{
+  __asm__ volatile ( ".word 0" );
+}
+
 RTEMS_INLINE_ROUTINE void _CPU_Instruction_no_operation( void )
 {
   __asm__ volatile ( "nop" );
diff --git a/cpukit/score/cpu/lm32/include/rtems/score/cpuimpl.h b/cpukit/score/cpu/lm32/include/rtems/score/cpuimpl.h
index 5d8bd77161..78b87ef981 100644
--- a/cpukit/score/cpu/lm32/include/rtems/score/cpuimpl.h
+++ b/cpukit/score/cpu/lm32/include/rtems/score/cpuimpl.h
@@ -37,6 +37,11 @@ RTEMS_INLINE_ROUTINE void _CPU_Context_validate( uintptr_t pattern )
   }
 }
 
+RTEMS_INLINE_ROUTINE void _CPU_Instruction_illegal( void )
+{
+  __asm__ volatile ( ".word 0" );
+}
+
 RTEMS_INLINE_ROUTINE void _CPU_Instruction_no_operation( void )
 {
   __asm__ volatile ( "nop" );
diff --git a/cpukit/score/cpu/m32c/include/rtems/score/cpuimpl.h b/cpukit/score/cpu/m32c/include/rtems/score/cpuimpl.h
index 5d8bd77161..78b87ef981 100644
--- a/cpukit/score/cpu/m32c/include/rtems/score/cpuimpl.h
+++ b/cpukit/score/cpu/m32c/include/rtems/score/cpuimpl.h
@@ -37,6 +37,11 @@ RTEMS_INLINE_ROUTINE void _CPU_Context_validate( uintptr_t pattern )
   }
 }
 
+RTEMS_INLINE_ROUTINE void _CPU_Instruction_illegal( void )
+{
+  __asm__ volatile ( ".word 0" );
+}
+
 RTEMS_INLINE_ROUTINE void _CPU_Instruction_no_operation( void )
 {
   __asm__ volatile ( "nop" );
diff --git a/cpukit/score/cpu/m68k/include/rtems/score/cpuimpl.h b/cpukit/score/cpu/m68k/include/rtems/score/cpuimpl.h
index 5d8bd77161..965976be03 100644
--- a/cpukit/score/cpu/m68k/include/rtems/score/cpuimpl.h
+++ b/cpukit/score/cpu/m68k/include/rtems/score/cpuimpl.h
@@ -37,6 +37,11 @@ RTEMS_INLINE_ROUTINE void _CPU_Context_validate( uintptr_t pattern )
   }
 }
 
+RTEMS_INLINE_ROUTINE void _CPU_Instruction_illegal( void )
+{
+  __asm__ volatile ( "illegal" );
+}
+
 RTEMS_INLINE_ROUTINE void _CPU_Instruction_no_operation( void )
 {
   __asm__ volatile ( "nop" );
diff --git a/cpukit/score/cpu/mips/include/rtems/score/cpuimpl.h b/cpukit/score/cpu/mips/include/rtems/score/cpuimpl.h
index 5d8bd77161..a6b5708015 100644
--- a/cpukit/score/cpu/mips/include/rtems/score/cpuimpl.h
+++ b/cpukit/score/cpu/mips/include/rtems/score/cpuimpl.h
@@ -37,6 +37,11 @@ RTEMS_INLINE_ROUTINE void _CPU_Context_validate( uintptr_t pattern )
   }
 }
 
+RTEMS_INLINE_ROUTINE void _CPU_Instruction_illegal( void )
+{
+  __asm__ volatile ( ".word -1" );
+}
+
 RTEMS_INLINE_ROUTINE void _CPU_Instruction_no_operation( void )
 {
   __asm__ volatile ( "nop" );
diff --git a/cpukit/score/cpu/moxie/include/rtems/score/cpuimpl.h b/cpukit/score/cpu/moxie/include/rtems/score/cpuimpl.h
index 5d8bd77161..78b87ef981 100644
--- a/cpukit/score/cpu/moxie/include/rtems/score/cpuimpl.h
+++ b/cpukit/score/cpu/moxie/include/rtems/score/cpuimpl.h
@@ -37,6 +37,11 @@ RTEMS_INLINE_ROUTINE void _CPU_Context_validate( uintptr_t pattern )
   }
 }
 
+RTEMS_INLINE_ROUTINE void _CPU_Instruction_illegal( void )
+{
+  __asm__ volatile ( ".word 0" );
+}
+
 RTEMS_INLINE_ROUTINE void _CPU_Instruction_no_operation( void )
 {
   __asm__ volatile ( "nop" );
diff --git a/cpukit/score/cpu/nios2/include/rtems/score/cpuimpl.h b/cpukit/score/cpu/nios2/include/rtems/score/cpuimpl.h
index a291aabe2f..5f8102009f 100644
--- a/cpukit/score/cpu/nios2/include/rtems/score/cpuimpl.h
+++ b/cpukit/score/cpu/nios2/include/rtems/score/cpuimpl.h
@@ -29,6 +29,11 @@ void _CPU_Context_volatile_clobber( uintptr_t pattern );
 
 void _CPU_Context_validate( uintptr_t pattern );
 
+RTEMS_INLINE_ROUTINE void _CPU_Instruction_illegal( void )
+{
+  __asm__ volatile ( ".word 0" );
+}
+
 RTEMS_INLINE_ROUTINE void _CPU_Instruction_no_operation( void )
 {
   __asm__ volatile ( "nop" );
diff --git a/cpukit/score/cpu/no_cpu/include/rtems/score/cpuimpl.h b/cpukit/score/cpu/no_cpu/include/rtems/score/cpuimpl.h
index c13180a06d..86d0ace0f3 100644
--- a/cpukit/score/cpu/no_cpu/include/rtems/score/cpuimpl.h
+++ b/cpukit/score/cpu/no_cpu/include/rtems/score/cpuimpl.h
@@ -105,6 +105,16 @@ void _CPU_Context_volatile_clobber( uintptr_t pattern );
 void _CPU_Context_validate( uintptr_t pattern );
 
 /**
+ * @brief Emits an illegal instruction.
+ *
+ * This function is used only in test sptests/spfatal26.
+ */
+RTEMS_INLINE_ROUTINE void _CPU_Instruction_illegal( void )
+{
+  __asm__ volatile ( ".word 0" );
+}
+
+/**
  * @brief Emits a no operation instruction (nop).
  *
  * This function is used only in test sptests/spcache01.
diff --git a/cpukit/score/cpu/or1k/include/rtems/score/cpuimpl.h b/cpukit/score/cpu/or1k/include/rtems/score/cpuimpl.h
index 148e23c309..e9beab85c8 100644
--- a/cpukit/score/cpu/or1k/include/rtems/score/cpuimpl.h
+++ b/cpukit/score/cpu/or1k/include/rtems/score/cpuimpl.h
@@ -29,6 +29,11 @@ void _CPU_Context_volatile_clobber( uintptr_t pattern );
 
 void _CPU_Context_validate( uintptr_t pattern );
 
+RTEMS_INLINE_ROUTINE void _CPU_Instruction_illegal( void )
+{
+  __asm__ volatile ( ".word 0" );
+}
+
 RTEMS_INLINE_ROUTINE void _CPU_Instruction_no_operation( void )
 {
   __asm__ volatile ( "l.nop" );
diff --git a/cpukit/score/cpu/powerpc/include/rtems/score/cpuimpl.h b/cpukit/score/cpu/powerpc/include/rtems/score/cpuimpl.h
index 4f5efe5ba3..e46d9bfabc 100644
--- a/cpukit/score/cpu/powerpc/include/rtems/score/cpuimpl.h
+++ b/cpukit/score/cpu/powerpc/include/rtems/score/cpuimpl.h
@@ -242,6 +242,11 @@ void _CPU_Context_volatile_clobber( uintptr_t pattern );
 
 void _CPU_Context_validate( uintptr_t pattern );
 
+RTEMS_INLINE_ROUTINE void _CPU_Instruction_illegal( void )
+{
+  __asm__ volatile ( ".word 0" );
+}
+
 RTEMS_INLINE_ROUTINE void _CPU_Instruction_no_operation( void )
 {
   __asm__ volatile ( "nop" );
diff --git a/cpukit/score/cpu/riscv/include/rtems/score/cpuimpl.h b/cpukit/score/cpu/riscv/include/rtems/score/cpuimpl.h
index c6e1015c88..c12bbbb2dc 100644
--- a/cpukit/score/cpu/riscv/include/rtems/score/cpuimpl.h
+++ b/cpukit/score/cpu/riscv/include/rtems/score/cpuimpl.h
@@ -325,6 +325,11 @@ void _CPU_Context_volatile_clobber( uintptr_t pattern );
 
 void _CPU_Context_validate( uintptr_t pattern );
 
+RTEMS_INLINE_ROUTINE void _CPU_Instruction_illegal( void )
+{
+  __asm__ volatile ( "unimp" );
+}
+
 RTEMS_INLINE_ROUTINE void _CPU_Instruction_no_operation( void )
 {
   __asm__ volatile ( "nop" );
diff --git a/cpukit/score/cpu/sh/include/rtems/score/cpuimpl.h b/cpukit/score/cpu/sh/include/rtems/score/cpuimpl.h
index 5d8bd77161..78b87ef981 100644
--- a/cpukit/score/cpu/sh/include/rtems/score/cpuimpl.h
+++ b/cpukit/score/cpu/sh/include/rtems/score/cpuimpl.h
@@ -37,6 +37,11 @@ RTEMS_INLINE_ROUTINE void _CPU_Context_validate( uintptr_t pattern )
   }
 }
 
+RTEMS_INLINE_ROUTINE void _CPU_Instruction_illegal( void )
+{
+  __asm__ volatile ( ".word 0" );
+}
+
 RTEMS_INLINE_ROUTINE void _CPU_Instruction_no_operation( void )
 {
   __asm__ volatile ( "nop" );
diff --git a/cpukit/score/cpu/sparc/include/rtems/score/cpuimpl.h b/cpukit/score/cpu/sparc/include/rtems/score/cpuimpl.h
index 93e5b45437..c125b8af72 100644
--- a/cpukit/score/cpu/sparc/include/rtems/score/cpuimpl.h
+++ b/cpukit/score/cpu/sparc/include/rtems/score/cpuimpl.h
@@ -150,6 +150,11 @@ void _CPU_Context_volatile_clobber( uintptr_t pattern );
 
 void _CPU_Context_validate( uintptr_t pattern );
 
+RTEMS_INLINE_ROUTINE void _CPU_Instruction_illegal( void )
+{
+  __asm__ volatile ( "unimp" );
+}
+
 RTEMS_INLINE_ROUTINE void _CPU_Instruction_no_operation( void )
 {
   __asm__ volatile ( "nop" );
diff --git a/cpukit/score/cpu/sparc64/include/rtems/score/cpuimpl.h b/cpukit/score/cpu/sparc64/include/rtems/score/cpuimpl.h
index 5d8bd77161..fab09bb15b 100644
--- a/cpukit/score/cpu/sparc64/include/rtems/score/cpuimpl.h
+++ b/cpukit/score/cpu/sparc64/include/rtems/score/cpuimpl.h
@@ -37,6 +37,11 @@ RTEMS_INLINE_ROUTINE void _CPU_Context_validate( uintptr_t pattern )
   }
 }
 
+RTEMS_INLINE_ROUTINE void _CPU_Instruction_illegal( void )
+{
+  __asm__ volatile ( "unimp" );
+}
+
 RTEMS_INLINE_ROUTINE void _CPU_Instruction_no_operation( void )
 {
   __asm__ volatile ( "nop" );
diff --git a/cpukit/score/cpu/v850/include/rtems/score/cpuimpl.h b/cpukit/score/cpu/v850/include/rtems/score/cpuimpl.h
index 5d8bd77161..78b87ef981 100644
--- a/cpukit/score/cpu/v850/include/rtems/score/cpuimpl.h
+++ b/cpukit/score/cpu/v850/include/rtems/score/cpuimpl.h
@@ -37,6 +37,11 @@ RTEMS_INLINE_ROUTINE void _CPU_Context_validate( uintptr_t pattern )
   }
 }
 
+RTEMS_INLINE_ROUTINE void _CPU_Instruction_illegal( void )
+{
+  __asm__ volatile ( ".word 0" );
+}
+
 RTEMS_INLINE_ROUTINE void _CPU_Instruction_no_operation( void )
 {
   __asm__ volatile ( "nop" );
diff --git a/cpukit/score/cpu/x86_64/include/rtems/score/cpuimpl.h b/cpukit/score/cpu/x86_64/include/rtems/score/cpuimpl.h
index 543c0918d2..722edeb00e 100644
--- a/cpukit/score/cpu/x86_64/include/rtems/score/cpuimpl.h
+++ b/cpukit/score/cpu/x86_64/include/rtems/score/cpuimpl.h
@@ -47,6 +47,11 @@ RTEMS_INLINE_ROUTINE void _CPU_Context_volatile_clobber( uintptr_t pattern )
   /* TODO */
 }
 
+RTEMS_INLINE_ROUTINE void _CPU_Instruction_illegal( void )
+{
+  __asm__ volatile ( ".word 0" );
+}
+
 RTEMS_INLINE_ROUTINE void _CPU_Context_validate( uintptr_t pattern )
 {
   while (1) {