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Use bzero instead of explicitly zeroing stuff in do_execve.

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While strictly speaking this is not correct since some fields are pointers,
it makes no difference on all supported archs and we already rely on it doing
the right thing in other places.

No functional changes.
This commit is contained in:
Mateusz Guzik 2014-09-29 23:59:19 +00:00
parent 934a6c2732
commit 8e572983d3
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=272290
1 changed files with 1 additions and 22 deletions
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23
sys/kern/kern_exec.c
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@ -379,29 +379,10 @@ do_execve(td, args, mac_p)
/*
* Initialize part of the common data
*/
bzero(imgp, sizeof(*imgp));
imgp->proc = p;
imgp->execlabel = NULL;
imgp->attr = &attr;
imgp->entry_addr = 0;
imgp->reloc_base = 0;
imgp->vmspace_destroyed = 0;
imgp->interpreted = 0;
imgp->opened = 0;
imgp->interpreter_name = NULL;
imgp->auxargs = NULL;
imgp->vp = NULL;
imgp->object = NULL;
imgp->firstpage = NULL;
imgp->ps_strings = 0;
imgp->auxarg_size = 0;
imgp->args = args;
imgp->execpath = imgp->freepath = NULL;
imgp->execpathp = 0;
imgp->canary = 0;
imgp->canarylen = 0;
imgp->pagesizes = 0;
imgp->pagesizeslen = 0;
imgp->stack_prot = 0;
#ifdef MAC
error = mac_execve_enter(imgp, mac_p);
@ -409,8 +390,6 @@ do_execve(td, args, mac_p)
goto exec_fail;
#endif
imgp->image_header = NULL;
/*
* Translate the file name. namei() returns a vnode pointer
* in ni_vp amoung other things.