freebsd-skq/lib/libarchive/Makefile.inc
arichardson cc2d1e1917 libarchive: fix mismatch between library and test configuration
I was investigating libarchive test failures on CheriBSD and it turns out
we get a reproducible SIGBUS for test_archive_m5, etc. Debugging this shows
that libarchive and the tests disagree when it comes to the definition of
archive_md5_ctx: libarchive assumes it's the OpenSSL type whereas the test
use the libmd type. The latter is not necessarily aligned enough to store
a pointer (16 bytes for CHERI RISC-V), so we were crashing when storing
EVP_MD_CTX* to an 8-byte-aligned archive_md5_ctx.

To avoid problems like this in the future, factor out the common compiler
flags into a Makefile.inc and include that from the tests Makefile.

Reviewed By:	lwhsu
Differential Revision: https://reviews.freebsd.org/D26469
2020-09-18 11:22:34 +00:00

22 lines
700 B
Makefile

# $FreeBSD$
# These defines are needed for both libarchive and the tests. If we don't keep
# them in sync we can get run-time crashes while running tests due to mismatches
# between structures such as archive_md5_ctx, etc.
LIBADD= z bz2 lzma bsdxml zstd
CFLAGS+= -DHAVE_BZLIB_H=1 -DHAVE_LIBLZMA=1 -DHAVE_LZMA_H=1 -DHAVE_ZSTD_H=1 -DHAVE_LIBZSTD=1
CFLAGS+= -DPLATFORM_CONFIG_H=\"${.CURDIR}/config_freebsd.h\"
.if ${MK_OPENSSL} != "no"
CFLAGS+= -DWITH_OPENSSL
LIBADD+= crypto
.else
LIBADD+= md
.endif
.if ${MK_ICONV} != "no"
# TODO: This can be changed back to CFLAGS once iconv works correctly
# with statically linked binaries.
SHARED_CFLAGS+= -DHAVE_ICONV=1 -DHAVE_ICONV_H=1 -DICONV_CONST=
.endif