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authorBrian Behlendorf <[email protected]>2018-02-07 11:50:24 -0800
committerGitHub <[email protected]>2018-02-07 11:50:24 -0800
commit48ef8ba07094afcd67355940ca8db92d76f7c096 (patch)
treec0f847b7ce7c93950d313ca7708bce4bc1f3621e /config/kernel-trim-unused-symbols.m4
parent5461eefe50427a8f8caf0b92f0195c754bed8ec6 (diff)
Split spl-build.m4
Split the kernel interface configure checks in to seperate m4 macro files. This is intended to facilitate moving the spl source code in to the zfs repository. Reviewed-by: Tony Hutter <[email protected]> Signed-off-by: Brian Behlendorf <[email protected]> Closes #682
Diffstat (limited to 'config/kernel-trim-unused-symbols.m4')
-rw-r--r--config/kernel-trim-unused-symbols.m419
1 files changed, 19 insertions, 0 deletions
diff --git a/config/kernel-trim-unused-symbols.m4 b/config/kernel-trim-unused-symbols.m4
new file mode 100644
index 000000000..d1ac2f3c8
--- /dev/null
+++ b/config/kernel-trim-unused-symbols.m4
@@ -0,0 +1,19 @@
+dnl #
+dnl # config trim unused symbols,
+dnl # Verify the kernel has CONFIG_TRIM_UNUSED_KSYMS DISABLED.
+dnl #
+AC_DEFUN([SPL_AC_CONFIG_TRIM_UNUSED_KSYMS], [
+ AC_MSG_CHECKING([whether CONFIG_TRIM_UNUSED_KSYM is disabled])
+ SPL_LINUX_TRY_COMPILE([
+ #if defined(CONFIG_TRIM_UNUSED_KSYMS)
+ #error CONFIG_TRIM_UNUSED_KSYMS not defined
+ #endif
+ ],[ ],[
+ AC_MSG_RESULT([yes])
+ ],[
+ AC_MSG_RESULT([no])
+ AC_MSG_ERROR([
+ *** This kernel has unused symbols trimming enabled, please disable.
+ *** Rebuild the kernel with CONFIG_TRIM_UNUSED_KSYMS=n set.])
+ ])
+])