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* [PATCH] apparmor: fix build error undefined reference to zlib_*
@ 2019-02-12  9:48 Anders Roxell
  2019-02-12 10:53 ` John Johansen
  0 siblings, 1 reply; 2+ messages in thread
From: Anders Roxell @ 2019-02-12  9:48 UTC (permalink / raw)
  To: john.johansen, jmorris, serge
  Cc: linux-security-module, linux-kernel, Anders Roxell

With commit 876dd866c084 ("apparmor: Initial implementation of raw
policy blob compression") and SECURITY_APPARMOR is set to '=y'
ZLIB_DEFLATE must be enabled as well for the linker to see the symbols.

aarch64-linux-gnu-ld: security/apparmor/policy_unpack.o: in function `deflate_compress':
../security/apparmor/policy_unpack.c:1030: undefined reference to `zlib_deflate_workspacesize'
aarch64-linux-gnu-ld: ../security/apparmor/policy_unpack.c:1030:(.text+0xe20): relocation truncated to fit: R_AARCH64_CALL26 against undefined symbol `zlib_deflate_workspacesize'
aarch64-linux-gnu-ld: ../security/apparmor/policy_unpack.c:1036: undefined reference to `zlib_deflateInit2'
aarch64-linux-gnu-ld: ../security/apparmor/policy_unpack.c:1036:(.text+0xe60): relocation truncated to fit: R_AARCH64_CALL26 against undefined symbol `zlib_deflateInit2'
aarch64-linux-gnu-ld: ../security/apparmor/policy_unpack.c:1053: undefined reference to `zlib_deflate'
aarch64-linux-gnu-ld: ../security/apparmor/policy_unpack.c:1053:(.text+0xec0): relocation truncated to fit: R_AARCH64_CALL26 against undefined symbol `zlib_deflate'
aarch64-linux-gnu-ld: ../security/apparmor/policy_unpack.c:1081: undefined reference to `zlib_deflateEnd'
aarch64-linux-gnu-ld: ../security/apparmor/policy_unpack.c:1081:(.text+0xf90): relocation truncated to fit: R_AARCH64_CALL26 against undefined symbol `zlib_deflateEnd'
aarch64-linux-gnu-ld: ../security/apparmor/policy_unpack.c:1081: undefined reference to `zlib_deflateEnd'
aarch64-linux-gnu-ld: ../security/apparmor/policy_unpack.c:1081:(.text+0xfb4): relocation truncated to fit: R_AARCH64_CALL26 against undefined symbol `zlib_deflateEnd'
aarch64-linux-gnu-ld: ../security/apparmor/policy_unpack.c:1081: undefined reference to `zlib_deflateEnd'
aarch64-linux-gnu-ld: ../security/apparmor/policy_unpack.c:1081:(.text+0xfd8): relocation truncated to fit: R_AARCH64_CALL26 against undefined symbol `zlib_deflateEnd'
make[1]: *** [Makefile:1023: vmlinux] Error 1
make[1]: Target 'Image' not remade because of errors.
make: *** [Makefile:152: sub-make] Error 2
make: Target 'Image' not remade because of errors.

Rework so when SECURITY_APPARMOR is set to '=y' ZLIB_INFLATE and ZLIB_DEFLATE gets
selected, since both are used by the SECURITY_APPARMOR.

Signed-off-by: Anders Roxell <anders.roxell@linaro.org>
---
 security/apparmor/Kconfig | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/security/apparmor/Kconfig b/security/apparmor/Kconfig
index 3de21f46c82a..99c35e22c119 100644
--- a/security/apparmor/Kconfig
+++ b/security/apparmor/Kconfig
@@ -5,6 +5,8 @@ config SECURITY_APPARMOR
 	select SECURITY_PATH
 	select SECURITYFS
 	select SECURITY_NETWORK
+	select ZLIB_INFLATE
+	select ZLIB_DEFLATE
 	default n
 	help
 	  This enables the AppArmor security module.
-- 
2.20.1


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