diff options
Diffstat (limited to 'sys/arm/arm/vm_machdep.c')
| -rw-r--r-- | sys/arm/arm/vm_machdep.c | 21 |
1 files changed, 12 insertions, 9 deletions
diff --git a/sys/arm/arm/vm_machdep.c b/sys/arm/arm/vm_machdep.c index e0b7892..ac52543 100644 --- a/sys/arm/arm/vm_machdep.c +++ b/sys/arm/arm/vm_machdep.c @@ -82,8 +82,8 @@ __FBSDID("$FreeBSD$"); * struct switchframe and trapframe must both be a multiple of 8 * for correct stack alignment. */ -CTASSERT(sizeof(struct switchframe) == 48); -CTASSERT(sizeof(struct trapframe) == 80); +_Static_assert((sizeof(struct switchframe) % 8) == 0, "Bad alignment"); +_Static_assert((sizeof(struct trapframe) % 8) == 0, "Bad alignment"); uint32_t initial_fpscr = VFPSCR_DN | VFPSCR_FZ; @@ -134,6 +134,9 @@ cpu_fork(register struct thread *td1, register struct proc *p2, pcb2->pcb_regs.sf_r5 = (register_t)td2; pcb2->pcb_regs.sf_lr = (register_t)fork_trampoline; pcb2->pcb_regs.sf_sp = STACKALIGN(td2->td_frame); +#if __ARM_ARCH >= 6 + pcb2->pcb_regs.sf_tpidrurw = (register_t)get_tls(); +#endif pcb2->pcb_vfpcpu = -1; pcb2->pcb_vfpstate.fpscr = initial_fpscr; @@ -147,9 +150,7 @@ cpu_fork(register struct thread *td1, register struct proc *p2, /* Setup to release spin count in fork_exit(). */ td2->td_md.md_spinlock_count = 1; td2->td_md.md_saved_cspr = PSR_SVC32_MODE; -#if __ARM_ARCH >= 6 - td2->td_md.md_tp = td1->td_md.md_tp; -#else +#if __ARM_ARCH < 6 td2->td_md.md_tp = *(register_t *)ARM_TP_ADDRESS; #endif } @@ -272,16 +273,18 @@ int cpu_set_user_tls(struct thread *td, void *tls_base) { - td->td_md.md_tp = (register_t)tls_base; - if (td == curthread) { - critical_enter(); #if __ARM_ARCH >= 6 + td->td_pcb->pcb_regs.sf_tpidrurw = (register_t)tls_base; + if (td == curthread) set_tls(tls_base); #else + td->td_md.md_tp = (register_t)tls_base; + if (td == curthread) { + critical_enter(); *(register_t *)ARM_TP_ADDRESS = (register_t)tls_base; -#endif critical_exit(); } +#endif return (0); } |
