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Diffstat (limited to 'cpukit/score/cpu/arm/rtems/asm.h')
| -rw-r--r-- | cpukit/score/cpu/arm/rtems/asm.h | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/cpukit/score/cpu/arm/rtems/asm.h b/cpukit/score/cpu/arm/rtems/asm.h index ec5ddc94ac..f72df32325 100644 --- a/cpukit/score/cpu/arm/rtems/asm.h +++ b/cpukit/score/cpu/arm/rtems/asm.h @@ -187,6 +187,36 @@ #endif /* __thumb__ */ .endm +.macro SWITCH_FROM_THUMB_2_TO_ARM +#ifdef __thumb2__ +.align 2 + bx pc +.arm +#endif /* __thumb__ */ +.endm + +.macro SWITCH_FROM_ARM_TO_THUMB_2 REG +#ifdef __thumb2__ + add \REG, pc, #1 + bx \REG +.thumb +#endif /* __thumb__ */ +.endm + +.macro BLX_TO_THUMB_1 TARGET +#if defined(__thumb__) && !defined(__thumb2__) + add lr, pc, #1 + bx lr +.thumb + bl \TARGET +.align 2 + bx pc +.arm +#else + bl \TARGET +#endif +.endm + .macro GET_SELF_CPU_CONTROL REG #ifdef RTEMS_SMP /* Use PL1 only Thread ID Register (TPIDRPRW) */ |