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Add some kernel printfs (under DEBUG) to print messages when bad things 

happen in a exec.
This commit is contained in:
matt 2000-06-21 05:43:33 +00:00
parent d4513b2c95
commit f2bfc30377
1 changed files with 31 additions and 5 deletions
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36
sys/kern/kern_exec.c
View File

@ -1,4 +1,4 @@
/* $NetBSD: kern_exec.c,v 1.110 2000/05/27 00:40:45 sommerfeld Exp $ */
/* $NetBSD: kern_exec.c,v 1.111 2000/06/21 05:43:33 matt Exp $ */
/*-
* Copyright (C) 1993, 1994, 1996 Christopher G. Demetriou
@ -390,14 +390,28 @@ sys_execve(p, v, retval)
vcp = &pack.ep_vmcmds.evs_cmds[i];
error = (*vcp->ev_proc)(p, vcp);
#ifdef DEBUG
if (error) {
if (i > 0)
printf("vmcmd[%d] = %#lx/%#lx @ %#lx\n", i-1,
vcp[-1].ev_addr, vcp[-1].ev_len,
vcp[-1].ev_offset);
printf("vmcmd[%d] = %#lx/%#lx @ %#lx\n", i,
vcp->ev_addr, vcp->ev_len, vcp->ev_offset);
}
#endif
}
/* free the vmspace-creation commands, and release their references */
kill_vmcmds(&pack.ep_vmcmds);
/* if an error happened, deallocate and punt */
if (error)
if (error) {
#ifdef DEBUG
printf("execve: vmcmd %i failed: %d\n", i-1, error);
#endif
goto exec_abort;
}
/* remember information about the process */
arginfo.ps_nargvstr = argc;
@ -405,12 +419,20 @@ sys_execve(p, v, retval)
stack = (char *) (USRSTACK - len);
/* Now copy argc, args & environ to new stack */
if (!(*pack.ep_emul->e_copyargs)(&pack, &arginfo, stack, argp))
if (!(*pack.ep_emul->e_copyargs)(&pack, &arginfo, stack, argp)) {
#ifdef DEBUG
printf("execve: copyargs failed\n");
#endif
goto exec_abort;
}
/* copy out the process's ps_strings structure */
if (copyout(&arginfo, (char *) PS_STRINGS, sizeof(arginfo)))
if (copyout(&arginfo, (char *) PS_STRINGS, sizeof(arginfo))) {
#ifdef DEBUG
printf("execve: ps_strings copyout failed\n");
#endif
goto exec_abort;
}
/* fill process ps_strings info */
p->p_psstr = PS_STRINGS;
@ -423,8 +445,12 @@ sys_execve(p, v, retval)
if (szsigcode) {
if (copyout((char *)pack.ep_emul->e_sigcode,
p->p_sigacts->ps_sigcode = (char *)PS_STRINGS - szsigcode,
szsigcode))
szsigcode)) {
#ifdef DEBUG
printf("execve: sig trampoline copyout failed\n");
#endif
goto exec_abort;
}
#ifdef PMAP_NEED_PROCWR
/* This is code. Let the pmap do what is needed. */
pmap_procwr(p, (vaddr_t)p->p_sigacts->ps_sigcode, szsigcode);