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Make md_tp a register_t not a void *. This will keep us from

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accidentally dereferencng it and might be one fewer things to change
if arm64 happens...

Submitted by:	rwatson's question on irc...
This commit is contained in:
Warner Losh 2011-02-05 03:30:29 +00:00
parent 3835f47c7e
commit ae5b8077df
3 changed files with 6 additions and 6 deletions
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4
sys/arm/arm/sys_machdep.c
View File

@ -85,7 +85,7 @@ static int
arm32_set_tp(struct thread *td, void *args)
{
td->td_md.md_tp = args;
td->td_md.md_tp = (register_t)args;
return (0);
}
@ -93,7 +93,7 @@ static int
arm32_get_tp(struct thread *td, void *args)
{
td->td_retval[0] = (uint32_t)td->td_md.md_tp;
td->td_retval[0] = td->td_md.md_tp;
return (0);
}

6
sys/arm/arm/vm_machdep.c
View File

@ -146,7 +146,7 @@ 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 = 0;
td2->td_md.md_tp = *(uint32_t **)ARM_TP_ADDRESS;
td2->td_md.md_tp = *(register_t *)ARM_TP_ADDRESS;
}
void
@ -370,10 +370,10 @@ cpu_set_user_tls(struct thread *td, void *tls_base)
{
if (td != curthread)
td->td_md.md_tp = tls_base;
td->td_md.md_tp = (register_t)tls_base;
else {
critical_enter();
*(void **)ARM_TP_ADDRESS = tls_base;
*(register_t *)ARM_TP_ADDRESS = (register_t)tls_base;
critical_exit();
}
return (0);

2
sys/arm/include/proc.h
View File

@ -50,7 +50,7 @@ struct mdthread {
register_t md_saved_cspr; /* (k) */
int md_ptrace_instr;
int md_ptrace_addr;
void *md_tp;
register_t md_tp;
void *md_ras_start;
void *md_ras_end;
};