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Avoid symbol collision with in-kernel zstdlib

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For Linux, when zfs is compiled as an in kernel static variant
and the in kernel zstd library is compiled statically into the kernel
a symbol collision will occur.  This wrapper header renames all
of the relevant zstd functions to avoid this problem.

Reviewed-by: Kjeld Schouten <kjeld@schouten-lebbing.nl>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Sebastian Gottschall <s.gottschall@dd-wrt.com>
Closes #10775
This commit is contained in:
Sebastian Gottschall
2020-08-24 21:20:41 +02:00
committed by GitHub
parent 04c37b6851
commit 184df27eef
7 changed files with 491 additions and 17 deletions
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lib/libzstd/Makefile.am
+6
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@@ -13,3 +13,9 @@ KERNEL_C = \
zfs_zstd.c
nodist_libzstd_la_SOURCES = $(KERNEL_C)
lib/zstd.$(OBJEXT): CFLAGS += -fno-tree-vectorize -include $(top_srcdir)/module/zstd/include/zstd_compat_wrapper.h -Wp,-w
lib/zstd.l$(OBJEXT): CFLAGS += -fno-tree-vectorize -include $(top_srcdir)/module/zstd/include/zstd_compat_wrapper.h -Wp,-w
zfs_zstd.$(OBJEXT): CFLAGS += -include $(top_srcdir)/module/zstd/include/zstd_compat_wrapper.h
zfs_zstd.l$(OBJEXT): CFLAGS += -include $(top_srcdir)/module/zstd/include/zstd_compat_wrapper.h