Date: Thu, 13 Oct 2011 15:25:39 -0400 From: John Baldwin <jhb@freebsd.org> To: Marcel Moolenaar <marcel@freebsd.org> Cc: svn-src-head@freebsd.org, svn-src-all@freebsd.org, src-committers@freebsd.org Subject: Re: svn commit: r226349 - head/sys/compat/freebsd32 Message-ID: <201110131525.39464.jhb@freebsd.org> In-Reply-To: <201110131825.p9DIPAJs027201@svn.freebsd.org> References: <201110131825.p9DIPAJs027201@svn.freebsd.org>
next in thread | previous in thread | raw e-mail | index | archive | help
On Thursday, October 13, 2011 2:25:10 pm Marcel Moolenaar wrote: > Author: marcel > Date: Thu Oct 13 18:25:10 2011 > New Revision: 226349 > URL: http://svn.freebsd.org/changeset/base/226349 > > Log: > Wrap mprotect(2) so that we can add execute permissions when read > permissions are requested. This is needed on amd64 and ia64 for > JDK 1.4.x > > Modified: > head/sys/compat/freebsd32/freebsd32_misc.c > head/sys/compat/freebsd32/freebsd32_proto.h > head/sys/compat/freebsd32/freebsd32_syscall.h > head/sys/compat/freebsd32/freebsd32_syscalls.c > head/sys/compat/freebsd32/freebsd32_sysent.c > head/sys/compat/freebsd32/freebsd32_systrace_args.c > > Modified: head/sys/compat/freebsd32/freebsd32_misc.c > ============================================================================== > --- head/sys/compat/freebsd32/freebsd32_misc.c Thu Oct 13 18:21:11 2011 (r226348) > +++ head/sys/compat/freebsd32/freebsd32_misc.c Thu Oct 13 18:25:10 2011 (r226349) > @@ -437,6 +437,21 @@ freebsd32_mmap_partial(struct thread *td > #endif > > int > +freebsd32_mprotect(struct thread *td, struct freebsd32_mprotect_args *uap) > +{ > + struct mprotect_args ap; > + > + ap.addr = (void *)(uintptr_t)uap->addr; Maybe use PTRIN() here? > + ap.len = uap->len; > + ap.prot = uap->prot; > +#if defined(__amd64__) || defined(__ia64__) > + if (ap.prot & PROT_READ) > + ap.prot |= PROT_EXEC; > +#endif > + return (sys_mprotect(td, &ap)); > +} > + > +int -- John Baldwin
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?201110131525.39464.jhb>