diff options
Diffstat (limited to 'nuttx/arch/arm/src/common/up_internal.h')
| -rw-r--r-- | nuttx/arch/arm/src/common/up_internal.h | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/nuttx/arch/arm/src/common/up_internal.h b/nuttx/arch/arm/src/common/up_internal.h index 430631853..34a7918e1 100644 --- a/nuttx/arch/arm/src/common/up_internal.h +++ b/nuttx/arch/arm/src/common/up_internal.h @@ -71,6 +71,20 @@ # define CONFIG_ARCH_INTERRUPTSTACK 0 #endif +/* Macros to handle saving and restore interrupt state. In the current ARM + * model, the state is always copied to and from the stack and TCB. In the + * Cortex-M3 model, the state is copied from the stack to the TCB, but only + * a referenced is passed to get the the state from the TCB. + */ + +#ifdef __thumb2__ +# define up_savestate(regs) up_copystate(regs, current_regs) +# define up_restorestate(regs) (current_regs = regs) +#else +# define up_savestate(regs) up_copystate(regs, current_regs) +# define up_restorestate(regs) up_copystate(current_regs, regs) +#endif + /**************************************************************************** * Public Types ****************************************************************************/ @@ -122,7 +136,11 @@ extern void up_boot(void); extern void up_copystate(uint32 *dest, uint32 *src); extern void up_dataabort(uint32 *regs); extern void up_decodeirq(uint32 *regs); +#ifdef __thumb2__ extern uint32 *up_doirq(int irq, uint32 *regs); +#else +extern void up_doirq(int irq, uint32 *regs); +#endif extern void up_fullcontextrestore(uint32 *regs) __attribute__ ((noreturn)); extern void up_irqinitialize(void); extern void up_prefetchabort(uint32 *regs); |