about summary refs log tree commit diff
path: root/stdlib/cxa_finalize.c
diff options
context:
space:
mode:
authorFlorian Weimer <fweimer@redhat.com>2022-10-18 17:00:07 +0200
committerFlorian Weimer <fweimer@redhat.com>2022-10-18 17:03:55 +0200
commit88f4b6929c26f9240a4b0b7dcc62922f02544a09 (patch)
tree72acb4a359d3ec56729a910386bd1a002bd69e3c /stdlib/cxa_finalize.c
parent246f37d6b1c4c6c0a6365df8783e62e3adf208e8 (diff)
downloadglibc-88f4b6929c26f9240a4b0b7dcc62922f02544a09.tar.gz
glibc-88f4b6929c26f9240a4b0b7dcc62922f02544a09.tar.xz
glibc-88f4b6929c26f9240a4b0b7dcc62922f02544a09.zip
Introduce <pointer_guard.h>, extracted from <sysdep.h>
This allows us to define a generic no-op version of PTR_MANGLE and
PTR_DEMANGLE.  In the future, we can use PTR_MANGLE and PTR_DEMANGLE
unconditionally in C sources, avoiding an unintended loss of hardening
due to missing include files or unlucky header inclusion ordering.

In i386 and x86_64, we can avoid a <tls.h> dependency in the C
code by using the computed constant from <tcb-offsets.h>.  <sysdep.h>
no longer includes these definitions, so there is no cyclic dependency
anymore when computing the <tcb-offsets.h> constants.

Reviewed-by: Adhemerval Zanella  <adhemerval.zanella@linaro.org>
Diffstat (limited to 'stdlib/cxa_finalize.c')
-rw-r--r--stdlib/cxa_finalize.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/stdlib/cxa_finalize.c b/stdlib/cxa_finalize.c
index d4db2e1fe0..f2479569a5 100644
--- a/stdlib/cxa_finalize.c
+++ b/stdlib/cxa_finalize.c
@@ -19,7 +19,7 @@
 #include <stdlib.h>
 #include "exit.h"
 #include <register-atfork.h>
-#include <sysdep.h>
+#include <pointer_guard.h>
 #include <stdint.h>
 
 /* If D is non-NULL, call all functions registered with `__cxa_atexit'