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- Proc locking.

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- Use FreeBSD stackgap_init() semantics.
- Adjust some #ifdef's to hide unused variables.
This commit is contained in:
John Baldwin 2001-01-24 00:24:57 +00:00
parent fdfdfb786a
commit 1e3e44f22f
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=71495
1 changed files with 26 additions and 5 deletions
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31
sys/i386/svr4/svr4_machdep.c
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@ -98,8 +98,14 @@ svr4_getcontext(p, uc, mask, oonstack)
svr4_greg_t *r = uc->uc_mcontext.greg;
struct svr4_sigaltstack *s = &uc->uc_stack;
#if defined(DONE_MORE_SIGALTSTACK_WORK)
struct sigacts *psp = p->p_sigacts;
struct sigaltstack *sf = &p->p_sigstk;
struct sigacts *psp;
struct sigaltstack *sf;
#endif
PROC_LOCK(p);
#if defined(DONE_MORE_SIGALTSTACK_WORK)
psp = p->p_sigacts;
sf = &p->p_sigstk;
#endif
memset(uc, 0, sizeof(struct svr4_ucontext));
@ -154,6 +160,7 @@ svr4_getcontext(p, uc, mask, oonstack)
s->ss_size = 16384;
s->ss_flags = 0;
#endif
PROC_UNLOCK(p);
/*
* Set the signal mask
@ -182,14 +189,20 @@ svr4_setcontext(p, uc)
struct svr4_ucontext *uc;
{
#if defined(DONE_MORE_SIGALTSTACK_WORK)
struct sigacts *psp = p->p_sigacts;
struct sigacts *psp;
#endif
register struct trapframe *tf;
svr4_greg_t *r = uc->uc_mcontext.greg;
struct svr4_sigaltstack *s = &uc->uc_stack;
struct sigaltstack *sf = &p->p_sigstk;
struct sigaltstack *sf;
sigset_t mask;
PROC_LOCK(p);
#if defined(DONE_MORE_SIGALTSTACK_WORK)
psp = p->p_sigacts;
#endif
sf = &p->p_sigstk;
/*
* XXX:
* Should we check the value of flags to determine what to restore?
@ -278,6 +291,7 @@ svr4_setcontext(p, uc)
SIG_CANTMASK(mask);
p->p_sigmask = mask;
}
PROC_UNLOCK(p);
return 0; /*EJUSTRETURN;*/
}
@ -396,12 +410,14 @@ svr4_sendsig(catcher, sig, mask, code)
register struct proc *p = curproc;
register struct trapframe *tf;
struct svr4_sigframe *fp, frame;
struct sigacts *psp = p->p_sigacts;
struct sigacts *psp;
int oonstack;
#if defined(DEBUG_SVR4)
printf("svr4_sendsig(%d)\n", sig);
#endif
PROC_LOCK(p);
psp = p->p_sigacts;
tf = p->p_md.md_regs;
oonstack = sigonstack(tf->tf_esp);
@ -417,6 +433,7 @@ svr4_sendsig(catcher, sig, mask, code)
} else {
fp = (struct svr4_sigframe *)tf->tf_esp - 1;
}
PROC_UNLOCK(p);
/*
* Build the argument list for the signal handler.
@ -487,7 +504,11 @@ svr4_sys_sysarch(p, v)
{
struct svr4_sys_sysarch_args *uap = v;
#ifdef USER_LDT
#if defined(__NetBSD__)
caddr_t sg = stackgap_init(p->p_emul);
#else
caddr_t sg = stackgap_init();
#endif
int error;
#endif
switch (uap->op) {