From 02d3ef7bdae7d1dd7a9a6f4fee24631cf9403278 Mon Sep 17 00:00:00 2001
From: xiphon <xiphon@protonmail.com>
Date: Thu, 4 Oct 2018 00:01:09 +0000
Subject: blocks: use auto-generated .c files instead of 'LD -r -b binary'

---
 src/blocks/CMakeLists.txt | 35 +++++++++++++++++++----------------
 1 file changed, 19 insertions(+), 16 deletions(-)

(limited to 'src/blocks/CMakeLists.txt')

diff --git a/src/blocks/CMakeLists.txt b/src/blocks/CMakeLists.txt
index ebb5408cc..bedda3b88 100644
--- a/src/blocks/CMakeLists.txt
+++ b/src/blocks/CMakeLists.txt
@@ -26,20 +26,23 @@
 # STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
 # THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
-if(APPLE)
-    add_library(blocks STATIC blockexports.c)
-    set_target_properties(blocks PROPERTIES LINKER_LANGUAGE C)
-else()
-    if(LINUX_32)
-        add_custom_command(OUTPUT blocks.o MAIN_DEPENDENCY blocks.dat COMMAND cd ${CMAKE_CURRENT_SOURCE_DIR} && ${CMAKE_LINKER} -m elf_i386 ${LD_RAW_FLAGS} -r -b binary -o ${CMAKE_CURRENT_BINARY_DIR}/blocks.o blocks.dat)
-        add_custom_command(OUTPUT testnet_blocks.o MAIN_DEPENDENCY testnet_blocks.dat COMMAND cd ${CMAKE_CURRENT_SOURCE_DIR} && ${CMAKE_LINKER} -m elf_i386 ${LD_RAW_FLAGS} -r -b binary -o ${CMAKE_CURRENT_BINARY_DIR}/testnet_blocks.o testnet_blocks.dat)
-        add_custom_command(OUTPUT stagenet_blocks.o MAIN_DEPENDENCY stagenet_blocks.dat COMMAND cd ${CMAKE_CURRENT_SOURCE_DIR} && ${CMAKE_LINKER} -m elf_i386 ${LD_RAW_FLAGS} -r -b binary -o ${CMAKE_CURRENT_BINARY_DIR}/stagenet_blocks.o stagenet_blocks.dat)
-    else()
-        add_custom_command(OUTPUT blocks.o MAIN_DEPENDENCY blocks.dat COMMAND cd ${CMAKE_CURRENT_SOURCE_DIR} && ${CMAKE_LINKER} ${LD_RAW_FLAGS} -r -b binary -o ${CMAKE_CURRENT_BINARY_DIR}/blocks.o blocks.dat)
-        add_custom_command(OUTPUT testnet_blocks.o MAIN_DEPENDENCY testnet_blocks.dat COMMAND cd ${CMAKE_CURRENT_SOURCE_DIR} && ${CMAKE_LINKER} ${LD_RAW_FLAGS} -r -b binary -o ${CMAKE_CURRENT_BINARY_DIR}/testnet_blocks.o testnet_blocks.dat)
-        add_custom_command(OUTPUT stagenet_blocks.o MAIN_DEPENDENCY stagenet_blocks.dat COMMAND cd ${CMAKE_CURRENT_SOURCE_DIR} && ${CMAKE_LINKER} ${LD_RAW_FLAGS} -r -b binary -o ${CMAKE_CURRENT_BINARY_DIR}/stagenet_blocks.o stagenet_blocks.dat)
-    endif()
-    add_library(blocks STATIC blocks.o testnet_blocks.o stagenet_blocks.o blockexports.c)
-    set_target_properties(blocks PROPERTIES LINKER_LANGUAGE C)
-endif()
+set(GENERATED_SOURCES "")
 
+foreach(BLOB_NAME checkpoints testnet_blocks stagenet_blocks)
+    set(OUTPUT_C_SOURCE "generated_${BLOB_NAME}.c")
+    list(APPEND GENERATED_SOURCES ${OUTPUT_C_SOURCE})
+    set(INPUT_DAT_FILE "${BLOB_NAME}.dat")
+    add_custom_command(
+        OUTPUT ${OUTPUT_C_SOURCE} 
+        MAIN_DEPENDENCY ${INPUT_DAT_FILE} 
+        COMMAND 
+            cd ${CMAKE_CURRENT_BINARY_DIR} && 
+            echo "'#include\t<stddef.h>'" > ${OUTPUT_C_SOURCE} &&
+            echo -n "'const\tunsigned\tchar\t${BLOB_NAME}[]={'" >> ${OUTPUT_C_SOURCE} &&
+            od -v -An -w1 -tu1 ${CMAKE_CURRENT_SOURCE_DIR}/${INPUT_DAT_FILE} | sed -e "':a;N;$$!ba;s/\\n/,/g'" >> ${OUTPUT_C_SOURCE} &&
+            echo "'};'" >> ${OUTPUT_C_SOURCE} &&
+            echo "'const\tsize_t\t${BLOB_NAME}_len\t=\tsizeof(${BLOB_NAME});'" >> ${OUTPUT_C_SOURCE}
+    )
+endforeach()
+
+add_library(blocks STATIC blocks.cpp ${GENERATED_SOURCES})
-- 
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