diff options
Diffstat (limited to 'cpukit/score/cpu/i386/rtems/score/cpu.h')
| -rw-r--r-- | cpukit/score/cpu/i386/rtems/score/cpu.h | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/cpukit/score/cpu/i386/rtems/score/cpu.h b/cpukit/score/cpu/i386/rtems/score/cpu.h index a9957cbe62..ba731b0666 100644 --- a/cpukit/score/cpu/i386/rtems/score/cpu.h +++ b/cpukit/score/cpu/i386/rtems/score/cpu.h @@ -128,6 +128,17 @@ extern "C" { #define CPU_PER_CPU_CONTROL_SIZE 0 +#define I386_CONTEXT_CONTROL_EFLAGS_OFFSET 0 +#define I386_CONTEXT_CONTROL_ESP_OFFSET 4 +#define I386_CONTEXT_CONTROL_EBP_OFFSET 8 +#define I386_CONTEXT_CONTROL_EBX_OFFSET 12 +#define I386_CONTEXT_CONTROL_ESI_OFFSET 16 +#define I386_CONTEXT_CONTROL_EDI_OFFSET 20 + +#ifdef RTEMS_SMP + #define I386_CONTEXT_CONTROL_IS_EXECUTING_OFFSET 24 +#endif + /* structures */ #ifndef ASM @@ -147,11 +158,19 @@ typedef struct { uint32_t ebx; /* extended bx register */ uint32_t esi; /* extended source index register */ uint32_t edi; /* extended destination index flags register */ +#ifdef RTEMS_SMP + volatile bool is_executing; +#endif } Context_Control; #define _CPU_Context_Get_SP( _context ) \ (_context)->esp +#ifdef RTEMS_SMP + #define _CPU_Context_Get_is_executing( _context ) \ + (_context)->is_executing +#endif + /* * FP context save area for the i387 numeric coprocessors. */ @@ -435,6 +454,13 @@ uint32_t _CPU_ISR_Get_level( void ); */ +#ifdef RTEMS_SMP + #define _I386_Context_Initialize_is_executing( _the_context ) \ + (_the_context)->is_executing = false +#else + #define _I386_Context_Initialize_is_executing( _the_context ) +#endif + #define _CPU_Context_Initialize( _the_context, _stack_base, _size, \ _isr, _entry_point, _is_fp, _tls_area ) \ do { \ @@ -449,6 +475,7 @@ uint32_t _CPU_ISR_Get_level( void ); *((proc_ptr *)(_stack)) = (_entry_point); \ (_the_context)->ebp = (void *) 0; \ (_the_context)->esp = (void *) _stack; \ + _I386_Context_Initialize_is_executing( _the_context ); \ } while (0) #define _CPU_Context_Restart_self( _the_context ) \ |