diff options
| author | Florian Weimer <fweimer@redhat.com> | 2022-10-18 17:00:07 +0200 |
|---|---|---|
| committer | Florian Weimer <fweimer@redhat.com> | 2022-10-18 17:03:55 +0200 |
| commit | 88f4b6929c26f9240a4b0b7dcc62922f02544a09 (patch) | |
| tree | 72acb4a359d3ec56729a910386bd1a002bd69e3c /hurd | |
| parent | 246f37d6b1c4c6c0a6365df8783e62e3adf208e8 (diff) | |
| download | 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 'hurd')
| -rw-r--r-- | hurd/sigunwind.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/hurd/sigunwind.c b/hurd/sigunwind.c index de76cf2436..28213091e3 100644 --- a/hurd/sigunwind.c +++ b/hurd/sigunwind.c @@ -22,7 +22,7 @@ #include <jmpbuf-unwind.h> #include <assert.h> #include <stdint.h> - +#include <pointer_guard.h> /* _hurd_setup_sighandler puts a link on the `active resources' chain so that _longjmp_unwind will call this function with the `struct sigcontext *' |