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When choosing segments to write to the core file, don't assume that

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writable implies readable.
This commit is contained in:
John Polstra 1998-09-15 22:07:20 +00:00
parent 5ee58402df
commit 6bb20c5063
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=39311
1 changed files with 3 additions and 2 deletions
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5
sys/kern/imgact_elf.c
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@ -26,7 +26,7 @@
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* $Id: imgact_elf.c,v 1.31 1998/09/14 22:46:04 jdp Exp $
* $Id: imgact_elf.c,v 1.32 1998/09/15 21:46:34 jdp Exp $
*/
#include "opt_rlimit.h"
@ -891,7 +891,8 @@ each_writable_segment(p, func, closure)
vm_object_t backobj;
if (entry->eflags & (MAP_ENTRY_IS_A_MAP|MAP_ENTRY_IS_SUB_MAP) ||
!(entry->protection & VM_PROT_WRITE))
(entry->protection & (VM_PROT_READ|VM_PROT_WRITE)) !=
(VM_PROT_READ|VM_PROT_WRITE))
continue;
/* Find the deepest backing object. */