mirror_zfs/cmd
Brian Behlendorf fed90353d7
Support -fsanitize=address with --enable-asan
When --enable-asan is provided to configure then build all user
space components with fsanitize=address.  For kernel support
use the Linux KASAN feature instead.

https://github.com/google/sanitizers/wiki/AddressSanitizer

When using gcc version 4.8 any test case which intentionally
generates a core dump will fail when using --enable-asan.
The default behavior is to disable core dumps and only newer
versions allow this behavior to be controled at run time with
the ASAN_OPTIONS environment variable.

Additionally, this patch includes some build system cleanup.

* Rules.am updated to set the minimum AM_CFLAGS, AM_CPPFLAGS,
  and AM_LDFLAGS.  Any additional flags should be added on a
  per-Makefile basic.  The --enable-debug and --enable-asan
  options apply to all user space binaries and libraries.

* Compiler checks consolidated in always-compiler-options.m4
  and renamed for consistency.

* -fstack-check compiler flag was removed, this functionality
  is provided by asan when configured with --enable-asan.

* Split DEBUG_CFLAGS in to DEBUG_CFLAGS, DEBUG_CPPFLAGS, and
  DEBUG_LDFLAGS.

* Moved default kernel build flags in to module/Makefile.in and
  split in to ZFS_MODULE_CFLAGS and ZFS_MODULE_CPPFLAGS.  These
  flags are set with the standard ccflags-y kbuild mechanism.

* -Wframe-larger-than checks applied only to binaries or
  libraries which include source files which are built in
  both user space and kernel space.  This restriction is
  relaxed for user space only utilities.

* -Wno-unused-but-set-variable applied only to libzfs and
  libzpool.  The remaining warnings are the result of an
  ASSERT using a variable when is always declared.

* -D_POSIX_PTHREAD_SEMANTICS and -D__EXTENSIONS__ dropped
  because they are Solaris specific and thus not needed.

* Ensure $GDB is defined as gdb by default in zloop.sh.

Signed-off-by: DHE <git@dehacked.net>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #7027
2018-01-10 10:49:27 -08:00
..
arc_summary Handle broken pipes in arc_summary 2017-12-19 13:19:24 -08:00
arcstat arcstat: flush stdout / outfile after each line 2017-10-26 12:18:49 -07:00
dbufstat Add support for DMU_OTN_* types in dbufstat.py 2017-08-22 11:53:40 -07:00
fsck_zfs Add /sbin/fsck.zfs helper 2013-01-09 16:54:58 -08:00
mount_zfs Honor --with-mounthelperdir where applicable 2017-12-17 14:14:07 -08:00
raidz_test Support -fsanitize=address with --enable-asan 2018-01-10 10:49:27 -08:00
vdev_id vdev_id: new slot type ses 2017-12-20 09:42:07 -08:00
zdb Support -fsanitize=address with --enable-asan 2018-01-10 10:49:27 -08:00
zed Fix unused variable warnings 2018-01-09 12:28:03 -08:00
zfs Fix coverity defects: 147480, 147584 2017-10-16 15:32:48 -07:00
zgenhostid Add zgenhostid utility script 2017-07-25 13:22:03 -04:00
zhack zhack: fix getopt return type 2018-01-09 11:14:45 -08:00
zinject Add corruption failure option to zinject(8) 2017-08-14 15:17:15 -07:00
zpool Fix unused variable warnings 2018-01-09 12:28:03 -08:00
zstreamdump Native Encryption for ZFS on Linux 2017-08-14 10:36:48 -07:00
ztest Support -fsanitize=address with --enable-asan 2018-01-10 10:49:27 -08:00
zvol_id OpenZFS 6314 - buffer overflow in dsl_dataset_name 2016-06-28 13:47:03 -07:00
Makefile.am Retire legacy test infrastructure 2017-08-15 17:26:38 -07:00