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In sys_obreak() and when compiling for amd64 or ia64, when the process

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is ILP32 (i.e. i386) grant execute permissions by default. The JDK 1.4.x
depends on being able to execute from the heap on i386.
This commit is contained in:
Marcel Moolenaar 2011-10-13 16:20:10 +00:00
parent 676eda08d0
commit 5f81660285
1 changed files with 12 additions and 2 deletions
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14
sys/vm/vm_unix.c
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@ -36,6 +36,8 @@
* @(#)vm_unix.c 8.1 (Berkeley) 6/11/93
*/
#include "opt_compat.h"
/*
* Traditional sbrk/grow interface to VM
*/
@ -49,6 +51,7 @@ __FBSDID("$FreeBSD$");
#include <sys/proc.h>
#include <sys/racct.h>
#include <sys/resourcevar.h>
#include <sys/sysent.h>
#include <sys/sysproto.h>
#include <sys/systm.h>
@ -75,7 +78,7 @@ sys_obreak(td, uap)
struct vmspace *vm = td->td_proc->p_vmspace;
vm_offset_t new, old, base;
rlim_t datalim, vmemlim;
int rv;
int prot, rv;
int error = 0;
boolean_t do_map_wirefuture;
@ -134,9 +137,16 @@ sys_obreak(td, uap)
goto done;
}
PROC_UNLOCK(td->td_proc);
#endif
prot = VM_PROT_RW;
#ifdef COMPAT_FREEBSD32
#if defined(__amd64__) || defined(__ia64__)
if (SV_PROC_FLAG(td->td_proc, SV_ILP32))
prot |= VM_PROT_EXECUTE;
#endif
#endif
rv = vm_map_insert(&vm->vm_map, NULL, 0, old, new,
VM_PROT_RW, VM_PROT_ALL, 0);
prot, VM_PROT_ALL, 0);
if (rv != KERN_SUCCESS) {
#ifdef RACCT
PROC_LOCK(td->td_proc);