Differential D33703 Diff 100768 sys/amd64/linux32/linux32_sysvec.c

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Show First 20 Lines • Show All 765 Lines • ▼ Show 20 Lines	linux_copyout_strings(struct image_params imgp, uintptr_t stack_base)
int argc, envc, error;		int argc, envc, error;
u_int32_t *vectp;		u_int32_t *vectp;
char *stringp;		char *stringp;
uintptr_t destp, ustringp;		uintptr_t destp, ustringp;
struct linux32_ps_strings *arginfo;		struct linux32_ps_strings *arginfo;
char canary[LINUX_AT_RANDOM_LEN];		char canary[LINUX_AT_RANDOM_LEN];
size_t execpath_len;		size_t execpath_len;

/* Calculate string base and vector table pointers. */
if (imgp->execpath != NULL && imgp->auxargs != NULL)
execpath_len = strlen(imgp->execpath) + 1;
else
execpath_len = 0;

arginfo = (struct linux32_ps_strings *)LINUX32_PS_STRINGS;		arginfo = (struct linux32_ps_strings *)LINUX32_PS_STRINGS;
destp = (uintptr_t)arginfo;		destp = (uintptr_t)arginfo;

if (execpath_len != 0) {		if (imgp->execpath != NULL && imgp->auxargs != NULL) {
		execpath_len = strlen(imgp->execpath) + 1;
destp -= execpath_len;		destp -= execpath_len;
destp = rounddown2(destp, sizeof(uint32_t));		destp = rounddown2(destp, sizeof(uint32_t));
imgp->execpathp = (void *)destp;		imgp->execpathp = (void *)destp;
error = copyout(imgp->execpath, imgp->execpathp, execpath_len);		error = copyout(imgp->execpath, imgp->execpathp, execpath_len);
if (error != 0)		if (error != 0)
return (error);		return (error);
}		}

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