The pointer guard used for pointer mangling was not initialized for
static applications resulting in the security feature being disabled.
The pointer guard is now correctly initialized to a random value for
static applications. Existing static applications need to be
recompiled to take advantage of the fix.
The test tst-ptrguard1-static and tst-ptrguard1 add regression
coverage to ensure the pointer guards are sufficiently random
and initialized to a default value.
This function is now called from dl_open_worker with the GL(dl_load_lock)
lock held and no longer needs local protection. GL(dl_load_lock) also
correctly protects _dl_lookup_symbol_x called here that relies on the
caller to have serialized access to the data structures it uses.
This patch introduces two new convenience functions to set the default
thread attributes used for creating threads. This allows a programmer
to set the default thread attributes just once in a process and then
run pthread_create without additional attributes.
These macros often set up a variable that later macros sometimes do
not use. Add unused attribute to avoid that.
Similarly, the ia64 code tends to check the err field rather than
the val (which is opposite of most arches) leading to the same
kind of warning. Replace this with a dummy reference.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
The current code declares double constants by using a char buffer and
then casting the pointer to a different type. This makes the aliasing
logic unhappy. Change it to use a union instead to avoid that.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Function pointers on ia64 are like parisc -- they're plabels. While
the parisc port enjoys a gcc builtin for extracting the address here,
ia64 has no such luck.
Casting & dereferencing in one go triggers a strict aliasing warning.
Use a union to fix that.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
The ia64_rse_is_rnat_slot func expects an unsigned pointer, but we're
passing in a signed pointer. The signness doesn't matter here, so
convert it to unsigned.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
This feature is specifically for the C++ compiler to offload calling
thread_local object destructors on thread program exit, to glibc.
This is to overcome the possible complication of destructors of
thread_local objects getting called after the DSO in which they're
defined is unloaded by the dynamic linker. The DSO is marked as
'unloadable' if it has a constructed thread_local object and marked as
'unloadable' again when all the constructed thread_local objects
defined in it are destroyed.
Since we no longer support __ASSUME_POSIX_CPU_TIMERS, the ia64 code
no longer needs to override HAS_CPUCLOCK in the common file. Drop
the ia64 shim as well.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
* sysdeps/unix/sysv/linux/m68k/bits/fcntl.h: Remove all
definitions and declarations that are provided by
<bits/fcntl-linux.h> and include <bits/fcntl-linux.h>.
* sysdeps/unix/sysv/linux/generic/bits/fcntl.h: Remove all
definitions and declarations that are provided by
<bits/fcntl-linux.h> and include <bits/fcntl-linux.h>.
* sysdeps/unix/sysv/linux/ia64/bits/fcntl.h: Remove all
definitions and declarations that are provided by
<bits/fcntl-linux.h> and include <bits/fcntl-linux.h>.
The new strtod function wants rounding information from the C lib, so
move the guts of the ia64 version into a header file for it to use.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
The ia64 gcc port has never shipped a crtbeginT.o, so keep using the
old crtbegin.o object when static linking.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
The original runtime linker auditing interface described
by Solaris allows the 5th argument of la_pltenter() to be
modified. This patch cleans up the ldsodefs.h definitions
such that the 5th argument is not constant.
At one point the 5th argument *was* constant but this was
changed with commit 2413fdba7a.
This patch updates alpha, ia64, mips, sh and sparc with similar
changes.
Looks like a wart copied from the i386 code base. The only place I can
find that checks this is the i386 sysdep.h, and even then this looks like
a check that should get thrown away as obsolete ...
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Since we require a new enough version of binutils that has TLS, we don't
need to bother checking for it anymore.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
(__ptrace_eventcodes): Add new value PTRACE_EVENT_SECCOMP from Linux 3.5.
(__ptrace_setoptions): Add new value PTRACE_O_TRACESECCOMP, adjust PTRACE_O_MASK.
Carlos O'Donell
Ondřej Bílka
Andreas Jaeger
Maciej W. Rozycki
Siddhesh Poyarekar
Joseph Myers
Edjunior Barbosa Machado
Mike Frysinger
Roland McGrath
Carlos O'Donell
Florian Weimer