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Build Seccomp filter only if we have a 64-bit userspace (Bug#56549)

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* configure.ac (SIZEOF_LONG): New variable.
* lib-src/Makefile.in (SIZEOF_LONG): New variable; added conditional.
This commit is contained in:
Philipp Stephani 2022-07-15 17:56:02 +02:00
parent 6a05715552
commit db259d8fd3
2 changed files with 7 additions and 0 deletions
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4
configure.ac
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@ -4380,6 +4380,10 @@ AC_SUBST([HAVE_LIBSECCOMP])
AC_SUBST([LIBSECCOMP_LIBS])
AC_SUBST([LIBSECCOMP_CFLAGS])
AC_CHECK_SIZEOF([long])
SIZEOF_LONG="$ac_cv_sizeof_long"
AC_SUBST([SIZEOF_LONG])
OLD_LIBS=$LIBS
LIBS="$LIB_PTHREAD $LIB_MATH $LIBS"
AC_CHECK_FUNCS(accept4 fchdir gethostname \

3
lib-src/Makefile.in
View File

@ -196,11 +196,13 @@ HAVE_SECCOMP=@HAVE_SECCOMP@
HAVE_LIBSECCOMP=@HAVE_LIBSECCOMP@
LIBSECCOMP_LIBS=@LIBSECCOMP_LIBS@
LIBSECCOMP_CFLAGS=@LIBSECCOMP_CFLAGS@
SIZEOF_LONG=@SIZEOF_LONG@
# Currently, we can only generate seccomp filter files for x86-64.
ifeq ($(HAVE_SECCOMP),yes)
ifeq ($(HAVE_LIBSECCOMP),yes)
ifeq ($(shell uname -m),x86_64)
ifeq ($(SIZEOF_LONG),8)
# We require SECCOMP_RET_KILL_PROCESS, which is only available in
# Linux 4.14 and later.
ifeq ($(shell { echo 4.14; uname -r | cut -d . -f 1-2; } | \
@ -211,6 +213,7 @@ endif
endif
endif
endif
endif
ifeq ($(SECCOMP_FILTER),1)
DONT_INSTALL += seccomp-filter$(EXEEXT)