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authornewton <newton@FreeBSD.org>1999-02-04 12:42:39 +0000
committernewton <newton@FreeBSD.org>1999-02-04 12:42:39 +0000
commit6266a87e013823a79533aeaa77655454999cfed8 (patch)
tree503f5a04fac06233ec379264a24bd16c64e8396e /sys/kern/imgact_elf.c
parenta14ff10255d2dd0da8153e082f6d999b9388970d (diff)
downloadFreeBSD-src-6266a87e013823a79533aeaa77655454999cfed8.zip
FreeBSD-src-6266a87e013823a79533aeaa77655454999cfed8.tar.gz
Provide elf_brand_inuse() as a method an emulator can use to find out
whether it is currently in use (which is kinda useful when it's about to unload itself: Lockups are never very much fun, are they?).
Diffstat (limited to 'sys/kern/imgact_elf.c')
-rw-r--r--sys/kern/imgact_elf.c15
1 files changed, 14 insertions, 1 deletions
diff --git a/sys/kern/imgact_elf.c b/sys/kern/imgact_elf.c
index 98613d8..4bc0fac 100644
--- a/sys/kern/imgact_elf.c
+++ b/sys/kern/imgact_elf.c
@@ -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 1.46 1999/01/27 21:49:55 dillon Exp $
+ * $Id: imgact_elf.c,v 1.47 1999/01/29 22:59:43 dillon Exp $
*/
#include "opt_rlimit.h"
@@ -145,6 +145,19 @@ elf_remove_brand_entry(Elf_Brandinfo *entry)
return 0;
}
+int
+elf_brand_inuse(Elf_Brandinfo *entry)
+{
+ struct proc *p;
+
+ for (p = allproc.lh_first; p != 0; p = p->p_list.le_next) {
+ if (p->p_sysent == entry->sysvec)
+ return TRUE;
+ }
+
+ return FALSE;
+}
+
static int
elf_check_header(const Elf_Ehdr *hdr, int type)
{
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