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Don't unwrap the function descriptor used as the callout argument to

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fork_exit(). The MI version of fork_exit() needs a real function
descriptor, not a simple function pointer.
This commit is contained in:
Doug Rabson 2001-04-19 12:35:47 +00:00
parent eed829bca9
commit 2322ee63c2
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=75701
1 changed files with 2 additions and 7 deletions
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9
sys/ia64/ia64/vm_machdep.c
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@ -254,14 +254,9 @@ cpu_fork(p1, p2, flags)
* Arrange for continuation at fork_return(), which
* will return to exception_restore(). Note that the
* child process doesn't stay in the kernel for long!
*
* We should really deal with the function descriptor
* for fork_return() in fork_trampoline() so that a
* kthread started from a loaded module can have the
* right value for gp.
*/
up->u_pcb.pcb_sp = (u_int64_t)p2tf - 16;
up->u_pcb.pcb_r4 = FDESC_FUNC(fork_return);
up->u_pcb.pcb_r4 = (u_int64_t)fork_return;
up->u_pcb.pcb_r5 = FDESC_FUNC(exception_restore);
up->u_pcb.pcb_r6 = (u_int64_t)p2;
up->u_pcb.pcb_b0 = FDESC_FUNC(fork_trampoline);
@ -280,7 +275,7 @@ cpu_set_fork_handler(p, func, arg)
void (*func) __P((void *));
void *arg;
{
p->p_addr->u_pcb.pcb_r4 = FDESC_FUNC(func);
p->p_addr->u_pcb.pcb_r4 = (u_int64_t) func;
p->p_addr->u_pcb.pcb_r6 = (u_int64_t) arg;
}