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| author | Mark Johnston <markj@FreeBSD.org> | 2022-01-17 16:42:07 +0000 |
|---|---|---|
| committer | Mark Johnston <markj@FreeBSD.org> | 2022-01-17 16:42:07 +0000 |
| commit | 3fc21fdd5f8a4eeb71f43cc6841f59ef1debaf9a (patch) | |
| tree | 155862815375048ec6efce0502a2e65764fb5e9e /sys/kern/imgact_aout.c | |
| parent | 1544f5add8c72c28e939a1557e3e319c6cfe5008 (diff) | |
| download | src-3fc21fdd5f8a4eeb71f43cc6841f59ef1debaf9a.tar.gz src-3fc21fdd5f8a4eeb71f43cc6841f59ef1debaf9a.zip | |
sysent: Add a sv_psstringssz field to struct sysentvec
The size of the ps_strings structure varies between ABIs, so this is
useful for computing the address of the ps_strings structure relative to
the top of the stack when stack address randomization is enabled.
Reviewed by: kib
MFC after: 2 weeks
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D33704
Diffstat (limited to 'sys/kern/imgact_aout.c')
| -rw-r--r-- | sys/kern/imgact_aout.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/sys/kern/imgact_aout.c b/sys/kern/imgact_aout.c index f5d5628c05c6..6510488c3edd 100644 --- a/sys/kern/imgact_aout.c +++ b/sys/kern/imgact_aout.c @@ -89,6 +89,7 @@ struct sysentvec aout_sysvec = { .sv_maxuser = AOUT32_USRSTACK, .sv_usrstack = AOUT32_USRSTACK, .sv_psstrings = AOUT32_PS_STRINGS, + .sv_psstringssz = sizeof(struct ps_strings), .sv_stackprot = VM_PROT_ALL, .sv_copyout_strings = exec_copyout_strings, .sv_setregs = exec_setregs, @@ -139,6 +140,7 @@ struct sysentvec aout_sysvec = { .sv_maxuser = AOUT32_USRSTACK, .sv_usrstack = AOUT32_USRSTACK, .sv_psstrings = AOUT32_PS_STRINGS, + .sv_psstringssz = sizeof(struct freebsd32_ps_strings), .sv_stackprot = VM_PROT_ALL, .sv_copyout_strings = freebsd32_copyout_strings, .sv_setregs = ia32_setregs, |