Author: kib
Date: Fri Nov 23 23:07:57 2018
New Revision: 340860
URL: https://svnweb.freebsd.org/changeset/base/340860
Log:
Provide storage for the process feature control flags in struct proc.
The flags are cleared on exec, it is up to the image activator to set
them.
Sponsored by: The FreeBSD Foundation
MFC after: 2 weeks
Modified:
head/sys/kern/kern_exec.c
head/sys/kern/kern_thread.c
head/sys/sys/proc.h
Modified: head/sys/kern/kern_exec.c
==============================================================================
--- head/sys/kern/kern_exec.c Fri Nov 23 23:07:49 2018 (r340859)
+++ head/sys/kern/kern_exec.c Fri Nov 23 23:07:57 2018 (r340860)
@@ -488,6 +488,7 @@ interpret:
goto exec_fail_dealloc;
imgp->proc->p_osrel = 0;
+ imgp->proc->p_fctl0 = 0;
/*
* Implement image setuid/setgid.
Modified: head/sys/kern/kern_thread.c
==============================================================================
--- head/sys/kern/kern_thread.c Fri Nov 23 23:07:49 2018 (r340859)
+++ head/sys/kern/kern_thread.c Fri Nov 23 23:07:57 2018 (r340860)
@@ -92,9 +92,9 @@ _Static_assert(offsetof(struct proc, p_pid) == 0xbc,
"struct proc KBI p_pid");
_Static_assert(offsetof(struct proc, p_filemon) == 0x3d0,
"struct proc KBI p_filemon");
-_Static_assert(offsetof(struct proc, p_comm) == 0x3e4,
+_Static_assert(offsetof(struct proc, p_comm) == 0x3e8,
"struct proc KBI p_comm");
-_Static_assert(offsetof(struct proc, p_emuldata) == 0x4b8,
+_Static_assert(offsetof(struct proc, p_emuldata) == 0x4c0,
"struct proc KBI p_emuldata");
#endif
#ifdef __i386__
@@ -112,9 +112,9 @@ _Static_assert(offsetof(struct proc, p_pid) == 0x74,
"struct proc KBI p_pid");
_Static_assert(offsetof(struct proc, p_filemon) == 0x27c,
"struct proc KBI p_filemon");
-_Static_assert(offsetof(struct proc, p_comm) == 0x28c,
+_Static_assert(offsetof(struct proc, p_comm) == 0x290,
"struct proc KBI p_comm");
-_Static_assert(offsetof(struct proc, p_emuldata) == 0x318,
+_Static_assert(offsetof(struct proc, p_emuldata) == 0x31c,
"struct proc KBI p_emuldata");
#endif
Modified: head/sys/sys/proc.h
==============================================================================
--- head/sys/sys/proc.h Fri Nov 23 23:07:49 2018 (r340859)
+++ head/sys/sys/proc.h Fri Nov 23 23:07:57 2018 (r340860)
@@ -642,6 +642,7 @@ struct proc {
u_int p_magic; /* (b) Magic number. */
int p_osrel; /* (x) osreldate for the
binary (from ELF note, if any) */
+ uint32_t p_fctl0; /* (x) ABI feature control, ELF note */
char p_comm[MAXCOMLEN + 1]; /* (x) Process name. */
struct sysentvec *p_sysent; /* (b) Syscall dispatch info. */
struct pargs *p_args; /* (c) Process arguments. */
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