cryptfs-tpm2: fix LDFLAGS expansion

When LDFLAGS expands, The -fmacro-prefix-map and -fdebug-prefix-map will
be prefixed with -Wl, which will cause compilation error:
ld: -f may not be used without -shared

Signed-off-by: Yi Zhao <yi.zhao@windriver.com>

2 files changed, 44 insertions, 0 deletions

diff --git a/meta-encrypted-storage/recipes-tpm/cryptfs-tpm2/cryptfs-tpm2/0001-env.mk-fix-LDFLAGS-expansion.patch b/meta-encrypted-storage/recipes-tpm/cryptfs-tpm2/cryptfs-tpm2/0001-env.mk-fix-LDFLAGS-expansion.patch
new file mode 100644
index 0000000..0e430cc
--- /dev/null
+++ b/meta-encrypted-storage/recipes-tpm/cryptfs-tpm2/cryptfs-tpm2/0001-env.mk-fix-LDFLAGS-expansion.patch
@@ -0,0 +1,43 @@
+From 8d510daad66f59cbd182d9e193f6fe246fc0bd55 Mon Sep 17 00:00:00 2001
+From: Yi Zhao <yi.zhao@windriver.com>
+Date: Fri, 20 Aug 2021 10:57:06 +0800
+Subject: [PATCH] env.mk: fix LDFLAGS expansion
+
+When LDFLAGS expands, The -fmacro-prefix-map and -fdebug-prefix-map will
+be prefixed with -Wl, which will cause compilation error:
+ld: -f may not be used without -shared
+
+Upstream-Status: Pending
+
+Signed-off-by: Yi Zhao <yi.zhao@windriver.com>
+---
+ env.mk | 6 +++---
+ 1 file changed, 3 insertions(+), 3 deletions(-)
+
+diff --git a/env.mk b/env.mk
+index b6b554c..f250d3a 100644
+--- a/env.mk
++++ b/env.mk
+@@ -33,8 +33,8 @@ passphrase_secret ?= h31i05
+ # The byte code used to encrypt/decrypt secrets
+ secret_xor_byte_code ?= 0x48
+ 
+-LDFLAGS := --warn-common --no-undefined --fatal-warnings \
+-          $(patsubst $(join -Wl,,)%,%,$(EXTRA_LDFLAGS))
++LDFLAGS := -Wl,--warn-common -Wl,--no-undefined -Wl,--fatal-warnings \
++          $(EXTRA_LDFLAGS)
+ CFLAGS := -D_GNU_SOURCE -std=gnu99 -O2 -Wall -Werror \
+          $(addprefix -I, $(TOPDIR)/src/include \
+            $(tpm2_tss_includedir) $(tpm2_tabrmd_includedir) \
+@@ -42,7 +42,7 @@ CFLAGS := -D_GNU_SOURCE -std=gnu99 -O2 -Wall -Werror \
+          $(addprefix $(join -L,), $(tpm2_tss_libdir)) \
+          `$(PKG_CONFIG) --cflags glib-2.0` \
+          `$(PKG_CONFIG) --libs glib-2.0` \
+-         $(EXTRA_CFLAGS) $(addprefix $(join -Wl,,),$(LDFLAGS))
++         $(EXTRA_CFLAGS) $(LDFLAGS)
+ 
+ ifneq ($(TSS2_VER), 1)
+        CFLAGS += -ldl -ltss2-sys -ltss2-tcti-mssim -ltss2-tcti-device
+-- 
+2.25.1
+
diff --git a/meta-encrypted-storage/recipes-tpm/cryptfs-tpm2/cryptfs-tpm2_git.bb b/meta-encrypted-storage/recipes-tpm/cryptfs-tpm2/cryptfs-tpm2_git.bb
index d3b0869..e0ba90c 100644
--- a/meta-encrypted-storage/recipes-tpm/cryptfs-tpm2/cryptfs-tpm2_git.bb
+++ b/meta-encrypted-storage/recipes-tpm/cryptfs-tpm2/cryptfs-tpm2_git.bb
@@ -26,6 +26,7 @@ SRC_URI = "\
     file://0002-luks-setup.sh-Updated-TPM-Tools.patch \
     file://0001-lib-Makefile-set-correct-soname-for-libcryptfs-tpm2.patch \
     file://0001-Remove-build-time-from-show_banner.patch \
+    file://0001-env.mk-fix-LDFLAGS-expansion.patch \
 "
 SRCREV = "87c35c63090a33d4de437f518b8da9f2d1f1d828"