Rework how shared page related data is stored

Store the shared page address in struct vmspace.
Also instead of storing absolute addresses of various shared page
segments save their offsets with respect to the shared page address.
This will be more useful when the shared page address is randomized.

Approved by:	mw(mentor)
Sponsored by:	Stormshield
Obtained from:	Semihalf
Reviewed by:	kib
Differential Revision: https://reviews.freebsd.org/D35393

This commit is contained in:

Kornel Dulęba

2022-06-02 09:58:12 +02:00

parent f6ac79fb12

commit 361971fbca

23 changed files with 75 additions and 67 deletions

									
										sys/arm/arm/exec_machdep.c
									
		+1
		-1
	
												View File
												
				@@ -346,7 +346,7 @@ sendsig(sig_t catcher, ksiginfo_t *ksi, sigset_t *mask)

					tf->tf_pc = (register_t)catcher;

					tf->tf_usr_sp = (register_t)fp;

					sysent = p->p_sysent;

					if (sysent->sv_sigcode_base != 0)

					if (PROC_HAS_SHP(p))

						tf->tf_usr_lr = (register_t)PROC_SIGCODE(p);

					else

						tf->tf_usr_lr = (register_t)(PROC_PS_STRINGS(p) -