git: d00a638bfd66 - stable/13 - mips: Fix sendsig for stack layout randomisation

The branch stable/13 has been updated by jrtc27:

URL: https://cgit.FreeBSD.org/src/commit/?id=d00a638bfd668fea9608fa14cbcea3df783e9be5

commit d00a638bfd668fea9608fa14cbcea3df783e9be5
Author:     Jessica Clarke <jrtc27@FreeBSD.org>
AuthorDate: 2023-01-31 01:27:50 +0000
Commit:     Jessica Clarke <jrtc27@FreeBSD.org>
CommitDate: 2023-01-31 01:46:18 +0000

    mips: Fix sendsig for stack layout randomisation
    
    PS_STRINGS doesn't account for the stack gap, we need to use the new
    PROC_PS_STRINGS macro to correctly point at the trampoline.
    
    This is a direct commit to stable/13 as mips no longer exists in main.
    
    Fixes:  d247611467e0 ("exec: Introduce the PROC_PS_STRINGS() macro")
---
 sys/mips/mips/pm_machdep.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/sys/mips/mips/pm_machdep.c b/sys/mips/mips/pm_machdep.c
index 7a9db29b6ff6..9fcbef14f606 100644
--- a/sys/mips/mips/pm_machdep.c
+++ b/sys/mips/mips/pm_machdep.c
@@ -175,7 +175,8 @@ sendsig(sig_t catcher, ksiginfo_t *ksi, sigset_t *mask)
 	/*
 	 * Signal trampoline code is at base of user stack.
 	 */
-	regs->ra = (register_t)(intptr_t)PS_STRINGS - *(p->p_sysent->sv_szsigcode);
+	regs->ra = (register_t)(intptr_t)PROC_PS_STRINGS(p) -
+	    *(p->p_sysent->sv_szsigcode);
 	PROC_LOCK(p);
 	mtx_lock(&psp->ps_mtx);
 }