mirror_zfs/config/Rules.am
Damian Szuberski 63652e1546
Add --enable-asan and --enable-ubsan switches
`configure` now accepts `--enable-asan` and `--enable-ubsan` switches
which results in passing `-fsanitize=address`
and `-fsanitize=undefined`, respectively, to the compiler. Those
flags are enabled in GitHub workflows for ZTS and zloop. Errors
reported by both instrumentations are corrected, except for:

- Memory leak reporting is (temporarily) suppressed. The cost of
  fixing them is relatively high compared to the gains.

- Checksum computing functions in `module/zcommon/zfs_fletcher*`
  have UBSan errors suppressed. It is completely impractical
  to enforce 64-byte payload alignment there due to performance
  impact.

- There's no ASan heap poisoning in `module/zstd/lib/zstd.c`. A custom
  memory allocator is used there rendering that measure
  unfeasible.

- Memory leaks detection has to be suppressed for `cmd/zvol_id`.
  `zvol_id` is run by udev with the help of `ptrace(2)`. Tracing is
  incompatible with memory leaks detection.

Reviewed-by: Ahelenia Ziemiańska <nabijaczleweli@nabijaczleweli.xyz>
Reviewed-by: George Melikov <mail@gmelikov.ru>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: szubersk <szuberskidamian@gmail.com>
Closes #12928
2022-02-03 14:35:38 -08:00

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#
# Default build rules for all user space components, every Makefile.am
# should include these rules and override or extend them as needed.
#
PHONY =
DEFAULT_INCLUDES = \
-include $(top_builddir)/zfs_config.h \
-I$(top_builddir)/include \
-I$(top_srcdir)/include \
-I$(top_srcdir)/module/icp/include \
-I$(top_srcdir)/lib/libspl/include
if BUILD_LINUX
DEFAULT_INCLUDES += \
-I$(top_srcdir)/lib/libspl/include/os/linux
endif
if BUILD_FREEBSD
DEFAULT_INCLUDES += \
-I$(top_srcdir)/lib/libspl/include/os/freebsd
endif
AM_LIBTOOLFLAGS = --silent
AM_CFLAGS = -std=gnu99 -Wall -Wstrict-prototypes -Wmissing-prototypes
AM_CFLAGS += -fno-strict-aliasing
AM_CFLAGS += $(NO_OMIT_FRAME_POINTER)
AM_CFLAGS += $(IMPLICIT_FALLTHROUGH)
AM_CFLAGS += $(DEBUG_CFLAGS)
AM_CFLAGS += $(ASAN_CFLAGS)
AM_CFLAGS += $(UBSAN_CFLAGS)
AM_CFLAGS += $(CODE_COVERAGE_CFLAGS) $(NO_FORMAT_ZERO_LENGTH)
if BUILD_FREEBSD
AM_CFLAGS += -fPIC -Werror -Wno-unknown-pragmas -Wno-enum-conversion
AM_CFLAGS += -include $(top_srcdir)/include/os/freebsd/spl/sys/ccompile.h
AM_CFLAGS += -I/usr/include -I/usr/local/include
endif
AM_CPPFLAGS = -D_GNU_SOURCE
AM_CPPFLAGS += -D_REENTRANT
AM_CPPFLAGS += -D_FILE_OFFSET_BITS=64
AM_CPPFLAGS += -D_LARGEFILE64_SOURCE
AM_CPPFLAGS += -DLIBEXECDIR=\"$(libexecdir)\"
AM_CPPFLAGS += -DRUNSTATEDIR=\"$(runstatedir)\"
AM_CPPFLAGS += -DSBINDIR=\"$(sbindir)\"
AM_CPPFLAGS += -DSYSCONFDIR=\"$(sysconfdir)\"
AM_CPPFLAGS += -DPKGDATADIR=\"$(pkgdatadir)\"
AM_CPPFLAGS += $(DEBUG_CPPFLAGS)
AM_CPPFLAGS += $(CODE_COVERAGE_CPPFLAGS)
if BUILD_LINUX
AM_CPPFLAGS += -DTEXT_DOMAIN=\"zfs-linux-user\"
endif
if BUILD_FREEBSD
AM_CPPFLAGS += -DTEXT_DOMAIN=\"zfs-freebsd-user\"
endif
AM_CPPFLAGS += -D"strtok(...)=strtok(__VA_ARGS__) __attribute__((deprecated(\"Use strtok_r(3) instead!\")))"
AM_CPPFLAGS += -D"__xpg_basename(...)=__xpg_basename(__VA_ARGS__) __attribute__((deprecated(\"basename(3) is underspecified. Use zfs_basename() instead!\")))"
AM_CPPFLAGS += -D"basename(...)=basename(__VA_ARGS__) __attribute__((deprecated(\"basename(3) is underspecified. Use zfs_basename() instead!\")))"
AM_CPPFLAGS += -D"dirname(...)=dirname(__VA_ARGS__) __attribute__((deprecated(\"dirname(3) is underspecified. Use zfs_dirnamelen() instead!\")))"
if ASAN_ENABLED
AM_CPPFLAGS += -DZFS_ASAN_ENABLED
endif
if UBSAN_ENABLED
AM_CPPFLAGS += -DZFS_UBSAN_ENABLED
endif
AM_LDFLAGS = $(DEBUG_LDFLAGS)
AM_LDFLAGS += $(ASAN_LDFLAGS)
AM_LDFLAGS += $(UBSAN_LDFLAGS)
if BUILD_FREEBSD
AM_LDFLAGS += -fstack-protector-strong -shared
AM_LDFLAGS += -Wl,-x -Wl,--fatal-warnings -Wl,--warn-shared-textrel
AM_LDFLAGS += -lm
endif