'configure' fails on ZFS 0.8.3 with kernel builtin option #9887
Comments
behlendorf
added
the
Type: Building
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The 0.8.3 tag did include changes to significantly speed up the Are you able to consistently reproduce this when starting with a clean source tree? Would it be possible for you to run a test build with the master source to see if you have the same issue there? |
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I'm reproducing with a vanilla, non-patched 4.14.169 kernel and a vanilla, non-patched zfs 0.8.3 tarball. On my end, the issue seems to be related to |
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Looking into @morian's initial diagnosis: Interestingly, there is code in kernel.m4 to artificially generate a corresponding |
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Replacing |
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Sorry for the response delay! |
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@morian thanks for the detailed instructions. I was able to reproduce the error on a Fedora 31 VM with both the diff --git a/config/kernel.m4 b/config/kernel.m4
index ec8f6a5c1..401389e8a 100644
--- a/config/kernel.m4
+++ b/config/kernel.m4
@@ -461,15 +461,13 @@ AC_DEFUN([ZFS_AC_KERNEL_TEST_MODULE], [
ZFS_LINUX_TRY_COMPILE([], [], [
AC_MSG_RESULT([yes])
],[
- AC_MSG_RESULT([no])
if test "x$enable_linux_builtin" != xyes; then
+ AC_MSG_RESULT([no])
AC_MSG_ERROR([
*** Unable to build an empty module.
])
else
- AC_MSG_ERROR([
- *** Unable to build an empty module.
- *** Please run 'make scripts' inside the kernel source tree.])
+ AC_MSG_RESULT([unneeded, using --enable-linux-builtin])
fi
])
])I'm going to put together a PR. |
This allows --enable-linux-builtin to work when CONFIG_MODULES is not set in the kernel. Fixes: openzfs#9887 Signed-off-by: Tony Hutter <hutter2@llnl.gov>
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Proposed fix: #9940 |
When configuring as builtin (--enable-linux-builtin) for kernels without loadable module support (CONFIG_MODULES=n) only the object file is created. Never a loadable kmod. Update ZFS_LINUX_TRY_COMPILE to handle this in a manor similar to the ZFS_LINUX_TEST_COMPILE_ALL macro. Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov> Issue openzfs#9887
When configuring as builtin (--enable-linux-builtin) for kernels without loadable module support (CONFIG_MODULES=n) only the object file is created. Never a loadable kmod. Update ZFS_LINUX_TRY_COMPILE to handle this in a manor similar to the ZFS_LINUX_TEST_COMPILE_ALL macro. Reviewed-by: George Melikov <mail@gmelikov.ru> Reviewed-by: Tony Hutter <hutter2@llnl.gov> Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov> Closes openzfs#9887 Closes openzfs#10063
When configuring as builtin (--enable-linux-builtin) for kernels without loadable module support (CONFIG_MODULES=n) only the object file is created. Never a loadable kmod. Update ZFS_LINUX_TRY_COMPILE to handle this in a manor similar to the ZFS_LINUX_TEST_COMPILE_ALL macro. Reviewed-by: George Melikov <mail@gmelikov.ru> Reviewed-by: Tony Hutter <hutter2@llnl.gov> Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov> Closes openzfs#9887 Closes openzfs#10063
When configuring as builtin (--enable-linux-builtin) for kernels without loadable module support (CONFIG_MODULES=n) only the object file is created. Never a loadable kmod. Update ZFS_LINUX_TRY_COMPILE to handle this in a manor similar to the ZFS_LINUX_TEST_COMPILE_ALL macro. Reviewed-by: George Melikov <mail@gmelikov.ru> Reviewed-by: Tony Hutter <hutter2@llnl.gov> Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov> Closes #9887 Closes #10063
When configuring as builtin (--enable-linux-builtin) for kernels without loadable module support (CONFIG_MODULES=n) only the object file is created. Never a loadable kmod. Update ZFS_LINUX_TRY_COMPILE to handle this in a manor similar to the ZFS_LINUX_TEST_COMPILE_ALL macro. Reviewed-by: George Melikov <mail@gmelikov.ru> Reviewed-by: Tony Hutter <hutter2@llnl.gov> Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov> Closes openzfs#9887 Closes openzfs#10063
System information
Describe the problem you're observing
Configure step ends with the following error:
Describe how to reproduce the problem
It used to work very well on ZFS 0.8.2 with the following steps:
bash autogen.sh ./configure --with-linux="${LINUX_DIR}" --enable-linux-builtinI have used a custom script for years now to create my own monolithic Linux kernel with builtin ZFS support, but found out that it is now broken.
Include any warning/errors/backtraces from the system logs
This is the interesting part of config.log:
Here is the content of build.log:
Identified cause of the issue (maybe?):
On 0.8.3, in
config/kernel.m4:ZFS_AC_KERNEL_TEST_MODULEusesZFS_LINUX_TRY_COMPILEZFS_LINUX_TRY_COMPILEusesZFS_LINUX_TEST_PROGRAMwhich is not a valid kernel module.ZFS_LINUX_TRY_COMPILEchecks for generatedconftest.kofile (only .o file exists)On 0.8.2:
ZFS_AC_TEST_MODULEusesZFS_LINUX_TRY_COMPILEas wellZFS_LINUX_TRY_COMPILEusesAC_LANG_SOURCE([ZFS_LANG_PROGRAM([[$1]], [[$2]])])which is not a valid kernel module.ZFS_LINUX_TRY_COMPILEchecks for generatedbuild/conftest.ofile (and it works...)The text was updated successfully, but these errors were encountered: