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authorDale Rahn <drahn@cvs.openbsd.org>2007-05-05 15:21:22 +0000
committerDale Rahn <drahn@cvs.openbsd.org>2007-05-05 15:21:22 +0000
commitb769e807d32df4b2769d521a9f2e07fa5636ad46 (patch)
treea84bec994dddd31b2cb2cb0ba6947ebfc34e71e2 /libexec/ld.so/sh
parent65314bd4b49f9cce5a6d3f3c9cf77bc7272e60fa (diff)
Provide hook so that rthreads can provide a spinlock to protect from races
in lazy binding. ok art@, kurt@
Diffstat (limited to 'libexec/ld.so/sh')
-rw-r--r--libexec/ld.so/sh/rtld_machine.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/libexec/ld.so/sh/rtld_machine.c b/libexec/ld.so/sh/rtld_machine.c
index 9865e2af09e..9af19cfd91c 100644
--- a/libexec/ld.so/sh/rtld_machine.c
+++ b/libexec/ld.so/sh/rtld_machine.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: rtld_machine.c,v 1.7 2007/03/07 18:50:02 drahn Exp $ */
+/* $OpenBSD: rtld_machine.c,v 1.8 2007/05/05 15:21:21 drahn Exp $ */
/*
* Copyright (c) 2004 Dale Rahn
@@ -858,6 +858,7 @@ _dl_bind(elf_object_t *object, int relidx)
if (object->got_size != 0) {
sigfillset(&nmask);
_dl_sigprocmask(SIG_BLOCK, &nmask, &omask);
+ _dl_thread_bind_lock(0);
_dl_mprotect((void*)object->got_start, object->got_size,
PROT_READ|PROT_WRITE);
}
@@ -870,6 +871,7 @@ _dl_bind(elf_object_t *object, int relidx)
_dl_mprotect((void*)object->got_start, object->got_size,
PROT_READ);
_dl_sigprocmask(SIG_SETMASK, &omask, NULL);
+ _dl_thread_bind_lock(1);
}
return newval;
}